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A Study to Learn How Well Nifurtimox Works and How Safe it is in Children Aged 0 to 17 Years With Chagas' Disease, an Inflammatory, Infectious Disease Caused by the Parasite Trypanosoma Cruzi

Prospective, Historically Controlled Study to Evaluate the Efficacy and Safety of a New Pediatric Formulation of Nifurtimox in Children Aged 0 to 17 Years With Chagas' Disease

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02625974
Enrollment
330
Registered
2015-12-09
Start date
2016-01-27
Completion date
2021-08-10
Last updated
2024-08-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chagas Disease

Brief summary

Researchers are looking for a better way to treat children who have an infectious disease caused by the parasite Trypanosoma cruzi (Chagas' disease). Chagas'disease is an inflammatory, infectious disease caused by the parasite Trypanosoma cruzi. This parasite is mainly spread by insects called triatomine bug. If Chagas' disease is left untreated, it can later cause serious heart and digestive problems. The study treatment nifurtimox has been used for more than 50 years to treat Chagas' disease. When used early after infection, it kills the parasite. In people who have long-term Chagas' disease, it's no longer possible to kill the parasite. However, nifurtimox may help slow the progression of the disease and its most serious complications. Nifurtimox was developed for use in adults only, but has also been used in children (off-label) for over 40 years. Currently it is available for doctors to give to adults and to children. However, there are not enough data about nifurtimox in children. The main purpose of this study is to learn how well nifurtimox works in children aged 8 months to less than 18 years with Chagas' disease. To answer this, the researchers will compare the amount of antibodies against the parasite Trypanosoma cruzi in the serum (fluid from blood without the clotting factors) between children treated with nifurtimox for 60 days with untreated children from the past (control group): * 12 months and * 4 years after the end of treatment. The data for the control group will come from 2 previous studies conducted in children.

Interventions

For pediatric participants with body weight ≤ 40 kg: dosage 10 to 20 mg/kg/day in three divided doses. For pediatric participants with body weight \> 40 kg: 8 - 10 mg/kg/day in three divided doses. 60 days or 30 days of nifurtimox treatment

DRUGPlacebo

Matching placebo

Sponsors

Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
No minimum to 17 Years
Healthy volunteers
No

Inclusion criteria

Part 1: * Male and female pediatric subjects aged 0 days to younger than 18 years * Chagas' disease diagnosed/ confirmed for a) Subjects \< 8 months of age at randomization must demonstrate direct observation of Trypanosoma cruzi by concentration test; b) Subjects ≥ 8 months to \< 18 years of age at randomization must demonstrate a positive conventional ELISA result for both recombinant ELISA and total purified antigen ELISA Part 2: \- Male and female subjects who were randomized and received at least one dose of their assigned 60- or 30-day regimen of nifurtimox treatment

Exclusion criteria

Part 1: * Subjects aged 0 to 27 days who, at birth, were pre-term, weighed less than 2500 g, or had a maximum Apgar score \< 7 at 5 minutes * Known evidence of Chagas' disease-related cardiomyopathy/ Chagas' heart disease * Known evidence of Chagas' disease-related gastrointestinal dysfunction (e.g. megaoesophagus, megacolon, or both) or Chagas' digestive disease * Serious manifestations of acute Chagas' disease, including myocarditis, meningoencephalitis, or pneumonitis * Known evidence of Chagas' disease-related damage to the peripheral nervous system or peripheral neuropathy * Clinically significant psychiatric disorder (e.g. moderate to severe depression, severe anxiety, or psychosis) or epilepsy * Subjects with contraindications/ warnings to nifurtimox administration, or with conditions that may increase the risk of the undesirable effects of nifurtimox * Subjects who have had previous treatment with trypanocidal agents or an accepted indication for antiparasitic therapy (e.g. reactivation of Chagas' infection due to immunosuppression by several diseases or treatment with steroids) * Subjects living in housing conditions where there is no active or effective vector control to Trypanosoma cruzi reinfection as determined by Ministry of Health guidelines in each country Part 2: * Subjects with acute or chronic health conditions or congenital disorders which, in the opinion of the investigator, would make them unsuitable for participation in the clinical study * Subjects living in housing conditions where there is no active or effective vector-control to Trypanosoma cruzi reinfection as determined by Ministry of Health guideline of the respective country * Subjects with clinical manifestations of Chagas' disease-related gastrointestinal dysfunction or serious manifestations of acute Chagas' disease * Immuno-compromised subjects (e.g. with human immunodeficiency virus or treated with immunosuppressive drugs)

Design outcomes

Primary

MeasureTime frameDescription
Part 1 - Percentage of Sero-reduction or Sero-conversion (Cured Subjects)At 12 months post-treatmentCure is defined as sero-reduction (in subjects ≥8 months to \<18 years of age at randomization) or sero-conversion (in all subjects). Sero-reduction is defined as a ≥20% reduction in optical density \[OD\]) measured by two conventional ELISA serology tests and sero-conversion is defined as negative Immunoglobulin G (IgG) concentration measured by two conventional ELISA serology tests. Subjects who have missing conventional serology results at the 12 month time point were treated as failures (ie, no cure). For the primary objective in the study, superiority over placebo was confirmed if the lower limit of the 95% Confidence Interval (CI) for the nifurtimox (60-day regimen) cure rate is greater than 16%, the larger of the upper limits of the 95% CIs for historical placebo control.
Part 2 - Incidence Rate of Seronegative Conversion in Subjects Received at Least One Dose of the 60-day Nifurtimox Treatment Regimen.Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1Seronegative conversion measured by two types of assay (recombinant ELISA and indirect hemagglutination assay \[IHA\]) in subjects who were randomized and received at least one dose of the 60-day nifurtimox treatment regimen compared to an external control group of historical placebo patients with Chagas' disease. Incidence rate is the number of new cases of seronegative conversion over the study period (i.e., 4 years after end of nifurtimox treatment) divided by the person-time at risk. It was modelled using a Poisson distribution with a 2-sided 95% exact CI. Number of participants with events were reported.

Secondary

MeasureTime frameDescription
Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineBaseline and up to 420 days (Visit 11 post-treatment)Diastolic Blood Pressure
Part 1 - Number of Subjects With Abnormal Urinalysis Findings Considered as Clinically Significant or Reported as Adverse Events (AEs)Up to 420 days (Visit 11 post-treatment)Urinalysis was performed and the following parameters evaluated: bilirubin, blood (red blood cells, white blood cells), chorionic gonadotropin β, glucose, ketones, leukocytes, nitrite, pH, protein, specific gravity, and urobilinogen.
Part 1 - Number of Subjects With Abnormal ECG Findings Considered as Clinically Significant by InvestigatorsUp to 420 days (Visit 11 post-treatment)Clinical significance of abnormal ECG was based on the judgement of the investigator
Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineBaseline and up to 420 days (Visit 11 post-treatment)Systolic Blood Pressure
Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineBaseline and up to 420 days (Visit 11 post-treatment)Respiratory Rate
Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineBaseline and up to 420 days (Visit 11 post-treatment)Heart Rate
Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineBaseline and up to 420 days (Visit 11 post-treatment)Temperature
Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 2At Visit 2 (Day 1): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hoursMeasured in sub-population.
Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 3At Visit 3 (Day 7): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hoursMeasured in sub-population.
Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 6At Visit 6 (Day 30): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hoursThe evaluation was based on clinical examinations. Measured in sub-population.
Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 8At Visit 8 (Day 60): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hoursMeasured in sub-population.
Part 2 - Incidence Rate of Seronegative Conversion in Subjects Who Received at Least One Dose of the 30-day Nifurtimox Treatment RegimenSubjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1Seronegative conversion measured by two types of assay (recombinant ELISA and indirect hemagglutination assay \[IHA\]) in subjects who were randomized and received at least one dose of the 30-day nifurtimox treatment regimen. Incidence rate is the number of new cases of seronegative conversion over the study period (i.e., 4 years after end of nifurtimox treatment) divided by the person-time at risk. It was modelled using a Poisson distribution with a 2-sided 95% exact CI. Number of participants with events were reported.
Part 2 - ECG Signs of Established Chagas-related CardiomyopathySubjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1Summary of subjects by evidence of established Chagas-related cardiomyopathy as measured by electrocardiogram (ECG). Evidence of established Chagas-related cardiomyopathy: Total
Part 2 - Serological Response of Established Chagas-related CardiomyopathySubjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1Summary of subjects by evidence of established Chagas-related cardiomyopathy as measured by Serological response. Evidence of established Chagas-related cardiomyopathy: Total
Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISABaseline and Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1Summary and change from baseline of optical density values measured by total purified antigen ELISA. Optical density is the measure of absorbance, and is defined as the ratio of the intensity of light falling upon a material and the intensity transmitted.
Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISABaseline and Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1Summary and change from baseline of optical density values measured by recombinant ELISA. Optical density is the measure of absorbance, and is defined as the ratio of the intensity of light falling upon a material and the intensity transmitted.
Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 1At Visit 1 (before treatment started)The evaluation was based on clinical examinations.
Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Up to 7 days (Visit 3)The evaluation was based on clinical examinations.
Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 6Up to 30 days (Visit 6)The evaluation was based on clinical examinations.
Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Up to 60 days (Visit 8; end of treatment)The evaluation was based on clinical examinations.
Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 9Up to 90 days (Visit 9 post-treatment)The evaluation was based on clinical examinations.
Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 10Up to 240 days (Visit 10 post-treatment)The evaluation was based on clinical examinations.
Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 11Up to 420 days (Visit 11 post-treatment)The evaluation was based on clinical examinations.
Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Up to 90 days (Visit 9 post-treatment)
Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) TestUp to 420 days (Visit 11 post-treatment)The non-conventional ELISA-F29 test is considered an early marker of treatment efficacy in chronic Chagas disease.
Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsUp to 420 days (Visit 11 post-treatment)The qPCR is molecular technique, considered a tool to diagnose acute and congenital Chagas disease, as well as a marker to measure treatment failure when demonstrating positive (detectable) results
Part 1 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)up to 7 days after last application of study drugTEAEs comprised events which first occurred or worsened at or after first application of study drug during the course of the study up to and including 7 days after last application of study drug
Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1TEAEs comprised events which first occurred or worsened at study start up to end of study in part 2. In Part 2, only AEs considered at least possibly related to nifurtimox (administered in part 1) and those caused by protocol-related procedures were reported.
Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentUp to 420 days (Visit 11 post-treatment)The Number Analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one high laboratory assessment after start of treatment who had a normal or lower than normal laboratory assessment at baseline.
Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentUp to 420 days (Visit 11 post-treatment)The number analyzed represents the number of subjects at baseline with a normal or higher than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one low laboratory assessment after start of treatment who had a normal or higher than normal laboratory assessment at baseline.
Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentUp to 420 days (Visit 11 post-treatment)The number analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. Subjects with missing or high abnormal values at baseline are not included in the number analyzed. The number of subjects represents subjects with at least one high laboratory assessment after start of treatment who had a normal or lower than normal laboratory assessment at baseline.
Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentUp to 420 days (Visit 11 post-treatment)The number analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. Subjects with missing or low abnormal values at baseline are not included in the number analyzed. The number of subjects represents subjects with at least one low laboratory assessment after start of treatment who had a normal or higher than normal laboratory assessment at baseline.
Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by TreatmentUp to 420 days (Visit 11 post-treatment)The Number Analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one high laboratory assessment after start of treatment who had a normal or lower than normal laboratory assessment at baseline.
Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by TreatmentUp to 420 days (Visit 11 post-treatment)The number analyzed represents the number of subjects at baseline with a normal or higher than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one low laboratory assessment after start of treatment who had a normal or higher than normal laboratory assessment at baseline.

Other

MeasureTime frameDescription
Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitUp to 420 days (Visit 11 post-treatment)Using frequencies of matches and mismatches to assess agreement Reactive = Reac ELISA Reactive = Reac F29 Non-reactive = Nonreac ELISA Non-reactive= Nonreac F29
Part 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsUp to 420 days (Visit 11 post-treatment)Sero-reduction is defined as a =\> 20% reduction in optical density \[OD\]) using two conventional ELISA serology tests in subjects =\> 8 months to \< 18 years of age at randomization; Others: reactive results that are not sero-reduction in subjects =\> 8 months to \< 18 years of age at randomization; or reactive results in subjects \< 8 months of age at randomization. Non-reactive ELISA = Nonreac ELISA Non-reactive IHA = Nonreac IHA Reactive IHA decrease = Reac IHA dec React IHA nochange = Reac IHA nochange Reactive ELISA: seroreduction = Reac ELISA reduc Reactive ELISA: others = Reac ELISA other
Part 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsUp to 420 days (Visit 11 post-treatment)Cure is defined as sero-reduction (in subjects =\> 8 months to \< 18 years of age at randomization) or sero-conversion (in all subjects). Sero-reduction is defined as a =\> 20% reduction in optical density \[OD\]) measured by two conventional ELISA serology tests and sero-conversion is defined as negative Immunoglobulin G \[IgG\] concentration measured by two conventional ELISA serology tests. Cure = Cure Non reactive/reactive decreasing = Nonreac/reac dec Reactive non-decreasing = Reac nondec No cure = No Cure Missing IHA testing = IHA missing
Part 1: Number of Participants Cured With 60-day Regimen Compared With Historical Active Control (Benznidazole)Up to 420 days (Visit 11 post-treatment)This exploratory efficacy analysis evaluated the cure rate assessed as seroconversion of nifurtimox after 1-year post-treatment follow-up with that of published data for benznidazole (Sosa Estani et al. 1998 and de Andrade et al. 1996) at 4- and 3-year post-treatment follow-up, respectively, used as historical control.
Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitUp to 420 days (Visit 11 post-treatment)Using frequencies of matches and mismatches to assess agreement Reactive = Reac ELISA Detectable = Detec qPCR Non-reactive = Nonreac ELISA Non-detectable = Nondetec qPCR Non evaluable = Noneval qPCR qPCR Missing = Miss qPCR Missing conventional testing = Miss ELISA
Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitUp to 420 days (Visit 11 post-treatment)Using frequencies of matches and mismatches to assess agreement Reactive = Reac ELISA Reactive = Reac F29 Non-reactive = Nonreac ELISA Non-reactive = Nonreac F29

Countries

Argentina, Bolivia, Colombia

Participant flow

Recruitment details

Part 1 of the study was conducted from 27 JAN 2016 (First subject first visit) to 25 JUL 2018 (Last subject last visit) in Argentina, Bolivia and Colombia. Part 2 of the study was conducted from 26 SEP 2018 (First subject first visit) to 10 AUG 2021 (Last subject last visit) in Argentina, Bolivia and Colombia.

Pre-assignment details

Part 1: 330 subjects who were eligible to participate in the study were randomized in a 2:1 ratio to either a 60-Day or 30-Day regimen with nifurtimox tablets. 308 subjects completed treatment in Part 1, and 318 subjects completed Part 1. Part 2: Of the 318 subjects completed Part 1, 295 subjects were included in Part 2.

Participants by arm

ArmCount
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2
Nifurtimox tablets administered three times daily for 30 days, followed by placebo administered three times daily for 30 days (Days 1 - 30, active nifurtimox treatment; Days 31 - 60, placebo)
111
Nifurtimox 60 Days / Arm 1
Nifurtimox tablets administered three times daily for 60 days (Days 1 - 60, active nifurtimox treatment)
219
Total330

Withdrawals & dropouts

PeriodReasonFG000FG001
Part 1Lost to Follow-up93
Part 2Lost to Follow-up46
Part 2Other, including due to the COVID-19 Pandemic21

Baseline characteristics

CharacteristicTotalNifurtimox 60 Days / Arm 1Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2
Age, Customized
0 to 27 days
7 Participants4 Participants3 Participants
Age, Customized
28 days to younger than 8 months
12 Participants8 Participants4 Participants
Age, Customized
2 years to younger than 18 years
286 Participants190 Participants96 Participants
Age, Customized
8 months to younger than 2 years
25 Participants17 Participants8 Participants
Concentration test for T. cruzi
Missing
311 Participants207 Participants104 Participants
Concentration test for T. cruzi
Negative
0 Participants0 Participants0 Participants
Concentration test for T. cruzi
Positive
19 Participants12 Participants7 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
325 Participants217 Participants108 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants2 Participants3 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Non conventional ELISA-F29 test results
Non Reactive
116 Participants77 Participants39 Participants
Non conventional ELISA-F29 test results
Reactive
214 Participants142 Participants72 Participants
Race/Ethnicity, Customized
American Indian or Alaska native
94 Participants64 Participants30 Participants
Race/Ethnicity, Customized
White
236 Participants155 Participants81 Participants
Recombinant ELISA OD values2.745 No dimension
STANDARD_DEVIATION 0.628
2.735 No dimension
STANDARD_DEVIATION 0.64
2.765 No dimension
STANDARD_DEVIATION 0.605
Recombinant ELISA test results
Non Reactive
1 Participants0 Participants1 Participants
Recombinant ELISA test results
Reactive
329 Participants219 Participants110 Participants
Sex: Female, Male
Female
178 Participants119 Participants59 Participants
Sex: Female, Male
Male
152 Participants100 Participants52 Participants
Total Purified Antigen ELISA optical density (OD) values1.494 No dimension
STANDARD_DEVIATION 0.546
1.474 No dimension
STANDARD_DEVIATION 0.553
1.532 No dimension
STANDARD_DEVIATION 0.533
Total Purified Antigen enzyme-linked immunosorbent assay (ELISA) test results
Non Reactive
1 Participants0 Participants1 Participants
Total Purified Antigen enzyme-linked immunosorbent assay (ELISA) test results
Reactive
329 Participants219 Participants110 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 2190 / 111
other
Total, other adverse events
128 / 21951 / 111
serious
Total, serious adverse events
6 / 2193 / 111

Outcome results

Primary

Part 1 - Percentage of Sero-reduction or Sero-conversion (Cured Subjects)

Cure is defined as sero-reduction (in subjects ≥8 months to \<18 years of age at randomization) or sero-conversion (in all subjects). Sero-reduction is defined as a ≥20% reduction in optical density \[OD\]) measured by two conventional ELISA serology tests and sero-conversion is defined as negative Immunoglobulin G (IgG) concentration measured by two conventional ELISA serology tests. Subjects who have missing conventional serology results at the 12 month time point were treated as failures (ie, no cure). For the primary objective in the study, superiority over placebo was confirmed if the lower limit of the 95% Confidence Interval (CI) for the nifurtimox (60-day regimen) cure rate is greater than 16%, the larger of the upper limits of the 95% CIs for historical placebo control.

Time frame: At 12 months post-treatment

ArmMeasureValue (NUMBER)
Nifurtimox 60 Days / Arm 1Part 1 - Percentage of Sero-reduction or Sero-conversion (Cured Subjects)32.9 Percentage of subjects
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Percentage of Sero-reduction or Sero-conversion (Cured Subjects)18.9 Percentage of subjects
95% CI: [3.7, 24.2]
Primary

Part 2 - Incidence Rate of Seronegative Conversion in Subjects Received at Least One Dose of the 60-day Nifurtimox Treatment Regimen.

Seronegative conversion measured by two types of assay (recombinant ELISA and indirect hemagglutination assay \[IHA\]) in subjects who were randomized and received at least one dose of the 60-day nifurtimox treatment regimen compared to an external control group of historical placebo patients with Chagas' disease. Incidence rate is the number of new cases of seronegative conversion over the study period (i.e., 4 years after end of nifurtimox treatment) divided by the person-time at risk. It was modelled using a Poisson distribution with a 2-sided 95% exact CI. Number of participants with events were reported.

Time frame: Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1

ArmMeasureValue (NUMBER)
Nifurtimox 60 Days / Arm 1Part 2 - Incidence Rate of Seronegative Conversion in Subjects Received at Least One Dose of the 60-day Nifurtimox Treatment Regimen.16 Participants
95% CI: [1.21, 3.45]
Secondary

Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From Baseline

Temperature

Time frame: Baseline and up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (MEAN)Dispersion
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 8-0.06 °CStandard Deviation 0.45
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 3-0.10 °CStandard Deviation 0.36
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 9-0.03 °CStandard Deviation 0.44
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 2-0.35 °CStandard Deviation 0.45
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 10-0.07 °CStandard Deviation 0.49
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 6-0.06 °CStandard Deviation 0.44
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 11-0.14 °CStandard Deviation 0.51
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 10.01 °CStandard Deviation 0.39
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 11-0.10 °CStandard Deviation 0.5
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 2-0.03 °CStandard Deviation 0.39
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 30.04 °CStandard Deviation 0.43
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 60 °CStandard Deviation 0.44
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 80.05 °CStandard Deviation 0.42
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 90.02 °CStandard Deviation 0.47
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 10-0.01 °CStandard Deviation 0.52
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Body Temperature) Between the Treatment Groups From BaselineVISIT 10.04 °CStandard Deviation 0.36
Secondary

Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From Baseline

Diastolic Blood Pressure

Time frame: Baseline and up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (MEAN)Dispersion
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 11.00 mmHgStandard Deviation 7.72
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 2-1.25 mmHgStandard Deviation 2.5
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 30.76 mmHgStandard Deviation 8.36
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 60.26 mmHgStandard Deviation 10.87
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 80.08 mmHgStandard Deviation 9.91
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 9-0.68 mmHgStandard Deviation 8.81
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 100.99 mmHgStandard Deviation 9.9
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 112.30 mmHgStandard Deviation 11.06
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 113.25 mmHgStandard Deviation 10.95
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 10.90 mmHgStandard Deviation 7.9
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 80.93 mmHgStandard Deviation 10.17
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 2-1.00 mmHgStandard Deviation 2
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 100.85 mmHgStandard Deviation 9.53
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 30.26 mmHgStandard Deviation 8.05
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 9-0.21 mmHgStandard Deviation 10.03
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Diastolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 6-0.14 mmHgStandard Deviation 10.21
Secondary

Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From Baseline

Heart Rate

Time frame: Baseline and up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (MEAN)Dispersion
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 1-1.08 BEATS/MINStandard Deviation 10.19
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 2-6.75 BEATS/MINStandard Deviation 2.22
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 30.04 BEATS/MINStandard Deviation 10.11
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 6-0.78 BEATS/MINStandard Deviation 11.49
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 8-1.27 BEATS/MINStandard Deviation 11.65
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 9-1.26 BEATS/MINStandard Deviation 11.97
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 10-3.28 BEATS/MINStandard Deviation 11.87
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 11-3.57 BEATS/MINStandard Deviation 12.57
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 11-4.66 BEATS/MINStandard Deviation 14.73
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 10.26 BEATS/MINStandard Deviation 11.37
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 8-1.34 BEATS/MINStandard Deviation 11.03
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 2-0.75 BEATS/MINStandard Deviation 2.99
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 10-3.28 BEATS/MINStandard Deviation 11.61
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 3-0.51 BEATS/MINStandard Deviation 11.46
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 9-1.63 BEATS/MINStandard Deviation 10.56
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Heart Rate) Between the Treatment Groups From BaselineVISIT 6-0.75 BEATS/MINStandard Deviation 11.92
Secondary

Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From Baseline

Respiratory Rate

Time frame: Baseline and up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (MEAN)Dispersion
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 10.12 BREATHS/MINStandard Deviation 4.1
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 2-1.50 BREATHS/MINStandard Deviation 3.42
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 3-0.05 BREATHS/MINStandard Deviation 3.15
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 6-0.57 BREATHS/MINStandard Deviation 4.16
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 8-0.77 BREATHS/MINStandard Deviation 4.04
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 9-1.01 BREATHS/MINStandard Deviation 4.06
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 10-1.36 BREATHS/MINStandard Deviation 4.5
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 11-1.93 BREATHS/MINStandard Deviation 5.1
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 11-0.74 BREATHS/MINStandard Deviation 4.61
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 10.47 BREATHS/MINStandard Deviation 2.91
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 80.04 BREATHS/MINStandard Deviation 4.58
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 2-1.00 BREATHS/MINStandard Deviation 1.15
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 10-0.24 BREATHS/MINStandard Deviation 3.6
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 3-0.14 BREATHS/MINStandard Deviation 3.91
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 9-0.50 BREATHS/MINStandard Deviation 3.76
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Respiratory Rate) Between the Treatment Groups From BaselineVISIT 6-0.06 BREATHS/MINStandard Deviation 3.87
Secondary

Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From Baseline

Systolic Blood Pressure

Time frame: Baseline and up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (MEAN)Dispersion
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 11.09 mmHgStandard Deviation 7.79
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 2-3.75 mmHgStandard Deviation 7.5
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 31.08 mmHgStandard Deviation 9.98
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 6-0.74 mmHgStandard Deviation 10.7
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 8-0.41 mmHgStandard Deviation 11.01
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 9-0.13 mmHgStandard Deviation 11.11
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 10-0.02 mmHgStandard Deviation 10.46
Nifurtimox 60 Days / Arm 1Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 111.20 mmHgStandard Deviation 11.52
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 111.57 mmHgStandard Deviation 10.7
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 10.69 mmHgStandard Deviation 7.85
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 80.48 mmHgStandard Deviation 11.24
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 2-5.00 mmHgStandard Deviation 7.07
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 10-1.48 mmHgStandard Deviation 10.95
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 3-0.50 mmHgStandard Deviation 8.45
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 9-0.45 mmHgStandard Deviation 10.49
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Mean Changes in Vital Signs (Systolic Blood Pressure) Between the Treatment Groups From BaselineVISIT 6-1.12 mmHgStandard Deviation 9.89
Secondary

Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 2

Measured in sub-population.

Time frame: At Visit 2 (Day 1): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hours

ArmMeasureGroupValue (MEDIAN)
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 25 - 10 MIN POSTNA ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 22 - 4 HOURS POST215.4 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 210 - 120 MIN POST78.2 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 24 - 8 HOURS POST267.6 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 2PredoseNA ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 24 - 8 HOURS POST289.6 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 2PredoseNA ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 25 - 10 MIN POST21.1 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 210 - 120 MIN POST49.0 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 22 - 4 HOURS POST300.7 ug/L
Secondary

Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 3

Measured in sub-population.

Time frame: At Visit 3 (Day 7): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hours

ArmMeasureGroupValue (MEDIAN)
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 35 - 10 MIN POST82.6 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 32 - 4 HOURS POST497.2 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 310 - 120 MIN POST250.6 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 34 - 8 HOURS POST427.5 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 3Predose47.7 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 34 - 8 HOURS POST267.0 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 3Predose38.3 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 35 - 10 MIN POST56.0 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 310 - 120 MIN POST232.3 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 32 - 4 HOURS POST257.7 ug/L
Secondary

Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 6

The evaluation was based on clinical examinations. Measured in sub-population.

Time frame: At Visit 6 (Day 30): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hours

ArmMeasureGroupValue (MEDIAN)
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 65 - 10 MIN POST71.7 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 62 - 4 HOURS POST369.5 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 610 - 120 MIN POST135.0 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 64 - 8 HOURS POST249.7 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 6Predose23.8 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 64 - 8 HOURS POST165.2 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 6Predose40.8 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 65 - 10 MIN POST73.7 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 610 - 120 MIN POST172.7 ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 62 - 4 HOURS POST103.8 ug/L
Secondary

Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 8

Measured in sub-population.

Time frame: At Visit 8 (Day 60): Pre-dose and Post-dose at 5-10 minutes, 10-120 minutes, 2-4 hours, and 4-8 hours

ArmMeasureGroupValue (MEDIAN)
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 85 - 10 MIN POST92.4 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 82 - 4 HOURS POST395.6 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 810 - 120 MIN POST139.1 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 84 - 8 HOURS POST300.6 ug/L
Nifurtimox 60 Days / Arm 1Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 8PredoseNA ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 84 - 8 HOURS POSTNA ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 8PredoseNA ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 85 - 10 MIN POSTNA ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 810 - 120 MIN POSTNA ug/L
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Nifurtimox Concentration Over Time in Plasma at Visit 82 - 4 HOURS POSTNA ug/L
Secondary

Part 1 - Number of Subjects With Abnormal ECG Findings Considered as Clinically Significant by Investigators

Clinical significance of abnormal ECG was based on the judgement of the investigator

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Abnormal ECG Findings Considered as Clinically Significant by Investigators0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Abnormal ECG Findings Considered as Clinically Significant by Investigators0 Participants
Secondary

Part 1 - Number of Subjects With Abnormal Urinalysis Findings Considered as Clinically Significant or Reported as Adverse Events (AEs)

Urinalysis was performed and the following parameters evaluated: bilirubin, blood (red blood cells, white blood cells), chorionic gonadotropin β, glucose, ketones, leukocytes, nitrite, pH, protein, specific gravity, and urobilinogen.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Abnormal Urinalysis Findings Considered as Clinically Significant or Reported as Adverse Events (AEs)0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Abnormal Urinalysis Findings Considered as Clinically Significant or Reported as Adverse Events (AEs)0 Participants
Secondary

Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) Test

The non-conventional ELISA-F29 test is considered an early marker of treatment efficacy in chronic Chagas disease.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) TestReactive96 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) TestNon-reactive114 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) TestMissing9 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) TestReactive54 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) TestNon-reactive54 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With a Positive Serological Response Using Non-conventional Enzyme-linked Immunosorbent Assay-F29 (ELISAF29) TestMissing3 Participants
Secondary

Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 1

The evaluation was based on clinical examinations.

Time frame: At Visit 1 (before treatment started)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 12 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 10 Participants
Secondary

Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 10

The evaluation was based on clinical examinations.

Time frame: Up to 240 days (Visit 10 post-treatment)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 101 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 100 Participants
Secondary

Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 11

The evaluation was based on clinical examinations.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 113 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 113 Participants
Secondary

Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3

The evaluation was based on clinical examinations.

Time frame: Up to 7 days (Visit 3)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Anemia1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Chagas disease2 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Hepatomegaly1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Known ECG abnormality4 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Known ECG abnormality0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Anemia0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Hepatomegaly0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 3Chagas disease0 Participants
Secondary

Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 6

The evaluation was based on clinical examinations.

Time frame: Up to 30 days (Visit 6)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 6Known ECG abnormality1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 6Romana sign0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 6Known ECG abnormality0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 6Romana sign1 Participants
Secondary

Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8

The evaluation was based on clinical examinations.

Time frame: Up to 60 days (Visit 8; end of treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Anemia1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Chagas disease1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Known ECG abnormality1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Lymphadenopathy1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Lymphadenopathy0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Anemia0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Known ECG abnormality0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 8Chagas disease0 Participants
Secondary

Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 9

The evaluation was based on clinical examinations.

Time frame: Up to 90 days (Visit 9 post-treatment)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 91 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Clinical Signs/ Symptoms of Chagas Disease at Visit 90 Participants
Secondary

Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) Results

The qPCR is molecular technique, considered a tool to diagnose acute and congenital Chagas disease, as well as a marker to measure treatment failure when demonstrating positive (detectable) results

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Non-evaluable0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Detectable117 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Non-evaluable1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Missing2 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Non-detectable171 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Detectable46 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Non-detectable99 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Missing2 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Non-detectable207 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Detectable4 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Non-evaluable3 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Missing5 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Non-detectable210 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Detectable3 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Non-evaluable2 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Missing4 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Non-detectable206 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Detectable3 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Non-evaluable2 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Missing8 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Non-detectable205 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Detectable3 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Non-evaluable1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Missing10 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Non-evaluable1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Non-detectable53 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Non-detectable105 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Detectable57 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Non-evaluable2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Non-evaluable1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Detectable1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 1 - Missing0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Detectable5 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Non-detectable86 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Non-evaluable2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Detectable21 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Missing2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Non-evaluable1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 8 - Missing3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 3 - Missing3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Missing3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Non-detectable105 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Non-detectable105 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Detectable3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 11 - Non-detectable102 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Non-evaluable2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 10 - Detectable2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Quantitative Polymerase Chain Reaction (qPCR) ResultsVisit 6 - Missing1 Participants
Secondary

Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)

Time frame: Up to 90 days (Visit 9 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 8|Positive0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 8|Negative12 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 1|Positive12 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 9|Negative11 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 9|Positive1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 1|Missing0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 6|Positive0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 3|Missing0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 1|Negative0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 6|Missing0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 3|Positive1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 8|Missing0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 3|Negative11 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 9|Missing0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 6|Negative12 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 9|Missing0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 1|Positive7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 3|Positive1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 6|Positive0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 8|Positive0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 9|Positive0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 1|Negative0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 6|Negative7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 8|Negative7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 9|Negative7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 1|Missing0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 3|Missing1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 6|Missing0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 8|Missing0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Positive Results in Concentration Test for T. Cruzi (for Subjects <8 Months of Age)Visit 3|Negative5 Participants
Secondary

Part 1 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)

TEAEs comprised events which first occurred or worsened at or after first application of study drug during the course of the study up to and including 7 days after last application of study drug

Time frame: up to 7 days after last application of study drug

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any treatment-emergent adverse event (TEAE)147 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any Serious TEAE6 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any treatment-emergent adverse event (TEAE)66 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any Serious TEAE3 Participants
Secondary

Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by Treatment

The Number Analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one high laboratory assessment after start of treatment who had a normal or lower than normal laboratory assessment at baseline.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAlanine Aminotransferase (U/L)19 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentDirect Bilirubin (mg/dL)21 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAlkaline Phosphatase (U/L)11 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentBlood Urea Nitrogen (mg/dL)11 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAspartate Aminotransferase (U/L)27 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentUrate (mg/dL)7 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAlbumin (g/dL)49 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentGlucose (mg/dL)15 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentBilirubin (mg/dL)19 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentProtein (g/dL)42 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentCreatinine (mg/dL)3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentProtein (g/dL)14 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentCreatinine (mg/dL)2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAlbumin (g/dL)21 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAlkaline Phosphatase (U/L)3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAlanine Aminotransferase (U/L)7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentAspartate Aminotransferase (U/L)7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentBilirubin (mg/dL)9 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentDirect Bilirubin (mg/dL)9 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentBlood Urea Nitrogen (mg/dL)3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentUrate (mg/dL)1 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Blood Chemistry Abnormalities by TreatmentGlucose (mg/dL)13 Participants
Secondary

Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by Treatment

The Number Analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one high laboratory assessment after start of treatment who had a normal or lower than normal laboratory assessment at baseline.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by TreatmentProthrombin Time (sec) in Plasma38 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by TreatmentActivated Partial Thromboplastin9 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by TreatmentTime in Plasma Prothrombin Intl. Normalized Ratio21 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by TreatmentProthrombin Time (sec) in Plasma23 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by TreatmentActivated Partial Thromboplastin10 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Coagulation Abnormalities by TreatmentTime in Plasma Prothrombin Intl. Normalized Ratio13 Participants
Secondary

Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by Treatment

The number analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. Subjects with missing or high abnormal values at baseline are not included in the number analyzed. The number of subjects represents subjects with at least one high laboratory assessment after start of treatment who had a normal or lower than normal laboratory assessment at baseline.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentHematocrit (%19 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentHemoglobin (g/dL)15 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentErythrocytes (T/L) in Blood21 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEry. Mean Corpuscular Volume (fL) in Blood20 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEry. Mean Corpuscular Hemoglobin (pg) in Blood14 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEry. Mean Corpuscular HGB Conc. (g/dL) in Blood23 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentLeukocytes (GIGA/L) in Blood41 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentNeutrophils/Leukocytes (%)38 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentNeutrophils (GIGA/L)36 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentLymphocytes/Leukocytes (%)35 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentLymphocytes (GIGA/L)21 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentMonocytes/Leukocytes (%)33 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentMonocytes (GIGA/L)17 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEosinophils/Leukocytes (%)58 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEosinophils (GIGA/L)53 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentBasophils/Leukocytes (%)20 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentBasophils (GIGA/L)10 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentPlatelets (GIGA/L) in Blood27 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEosinophils/Leukocytes (%)26 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentHematocrit (%8 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentLymphocytes/Leukocytes (%)17 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentHemoglobin (g/dL)3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentPlatelets (GIGA/L) in Blood13 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentErythrocytes (T/L) in Blood9 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentLymphocytes (GIGA/L)7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEry. Mean Corpuscular Volume (fL) in Blood7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEosinophils (GIGA/L)22 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEry. Mean Corpuscular Hemoglobin (pg) in Blood5 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentMonocytes/Leukocytes (%)17 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentEry. Mean Corpuscular HGB Conc. (g/dL) in Blood6 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentBasophils (GIGA/L)2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentLeukocytes (GIGA/L) in Blood16 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentMonocytes (GIGA/L)15 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentNeutrophils/Leukocytes (%)12 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentBasophils/Leukocytes (%)7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent High Hematology Abnormalities by TreatmentNeutrophils (GIGA/L)8 Participants
Secondary

Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by Treatment

The number analyzed represents the number of subjects at baseline with a normal or higher than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one low laboratory assessment after start of treatment who had a normal or higher than normal laboratory assessment at baseline.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAlanine Aminotransferase (U/L)6 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentDirect Bilirubin (mg/dL)0 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAlkaline Phosphatase (U/L)4 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentBlood Urea Nitrogen (mg/dL)31 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAspartate Aminotransferase (U/L)1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentUrate (mg/dL)32 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAlbumin (g/dL)14 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentGlucose (mg/dL)29 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentBilirubin (mg/dL)7 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentProtein (g/dL)17 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentCreatinine (mg/dL)22 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentProtein (g/dL)15 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentCreatinine (mg/dL)10 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAlbumin (g/dL)4 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAlkaline Phosphatase (U/L)4 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAlanine Aminotransferase (U/L)3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentAspartate Aminotransferase (U/L)5 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentBilirubin (mg/dL)3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentDirect Bilirubin (mg/dL)0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentBlood Urea Nitrogen (mg/dL)15 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentUrate (mg/dL)18 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Blood Chemistry Abnormalities by TreatmentGlucose (mg/dL)18 Participants
Secondary

Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by Treatment

The number analyzed represents the number of subjects at baseline with a normal or higher than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. The number of subjects represents subjects with at least one low laboratory assessment after start of treatment who had a normal or higher than normal laboratory assessment at baseline.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by TreatmentProthrombin Time (sec) in Plasma10 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by TreatmentActivated Partial Thromboplastin15 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by TreatmentTime in Plasma Prothrombin Intl. Normalized Ratio14 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by TreatmentProthrombin Time (sec) in Plasma5 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by TreatmentActivated Partial Thromboplastin2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Coagulation Abnormalities by TreatmentTime in Plasma Prothrombin Intl. Normalized Ratio5 Participants
Secondary

Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by Treatment

The number analyzed represents the number of subjects at baseline with a normal or lower than normal laboratory assessment who also had at least one valid laboratory value after start of treatment. Subjects with missing or low abnormal values at baseline are not included in the number analyzed. The number of subjects represents subjects with at least one low laboratory assessment after start of treatment who had a normal or higher than normal laboratory assessment at baseline.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentHematocrit (%30 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentHemoglobin (g/dL)23 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentErythrocytes (T/L) in Blood15 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEry. Mean Corpuscular Volume (fL) in Blood16 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEry. Mean Corpuscular Hemoglobin (pg) in Blood19 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEry. Mean Corpuscular HGB Conc. (g/dL) in Blood29 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentLeukocytes (GIGA/L) in Blood39 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentNeutrophils/Leukocytes (%)53 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentNeutrophils (GIGA/L)46 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentLymphocytes/Leukocytes (%)40 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentLymphocytes (GIGA/L)5 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentMonocytes/Leukocytes (%)54 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentMonocytes (GIGA/L)33 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEosinophils/Leukocytes (%)13 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEosinophils (GIGA/L)14 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentBasophils/Leukocytes (%)1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentBasophils (GIGA/L)1 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentPlatelets (GIGA/L) in Blood6 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEosinophils/Leukocytes (%)5 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentHematocrit (%17 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentLymphocytes/Leukocytes (%)9 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentHemoglobin (g/dL)17 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentPlatelets (GIGA/L) in Blood3 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentErythrocytes (T/L) in Blood9 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentLymphocytes (GIGA/L)0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEry. Mean Corpuscular Volume (fL) in Blood6 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEosinophils (GIGA/L)5 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEry. Mean Corpuscular Hemoglobin (pg) in Blood10 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentMonocytes/Leukocytes (%)28 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentEry. Mean Corpuscular HGB Conc. (g/dL) in Blood21 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentBasophils (GIGA/L)2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentLeukocytes (GIGA/L) in Blood18 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentMonocytes (GIGA/L)22 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentNeutrophils/Leukocytes (%)27 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentBasophils/Leukocytes (%)2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Number of Subjects With Treatment-emergent Low Hematology Abnormalities by TreatmentNeutrophils (GIGA/L)25 Participants
Secondary

Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISA

Summary and change from baseline of optical density values measured by recombinant ELISA. Optical density is the measure of absorbance, and is defined as the ratio of the intensity of light falling upon a material and the intensity transmitted.

Time frame: Baseline and Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1

ArmMeasureGroupValue (MEAN)Dispersion
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 1 - Up to 420 days post-treatment (Visit 11)2.27 Optical densityStandard Deviation 0.98
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 3 (FU Visit 3)2.17 Optical densityStandard Deviation 0.98
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 2: (FU Visit 1)2.5 Optical densityStandard Deviation 0.95
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 3: Change from Baseline (FU Visit 3)-0.56 Optical densityStandard Deviation 0.86
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 1 - Change from Baseline (Visit 11)-0.47 Optical densityStandard Deviation 0.74
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 4 (FU Visit 5)2.09 Optical densityStandard Deviation 1.01
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 2: Change from Baseline (FU Visit 1)-0.23 Optical densityStandard Deviation 0.87
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 4: Change from Baseline (FU Visit 5)-0.64 Optical densityStandard Deviation 0.89
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 1 - Baseline (Visit 1)2.74 Optical densityStandard Deviation 0.63
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 4: Change from Baseline (FU Visit 5)-0.48 Optical densityStandard Deviation 0.87
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 1 - Baseline (Visit 1)2.73 Optical densityStandard Deviation 0.63
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 1 - Up to 420 days post-treatment (Visit 11)2.31 Optical densityStandard Deviation 1
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 1 - Change from Baseline (Visit 11)-0.41 Optical densityStandard Deviation 0.79
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 2: (FU Visit 1)2.57 Optical densityStandard Deviation 0.88
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 2: Change from Baseline (FU Visit 1)-0.17 Optical densityStandard Deviation 0.9
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 3 (FU Visit 3)2.25 Optical densityStandard Deviation 0.91
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 3: Change from Baseline (FU Visit 3)-0.45 Optical densityStandard Deviation 0.87
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Recombinant ELISAPart 2 - Year 4 (FU Visit 5)2.22 Optical densityStandard Deviation 1
Secondary

Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISA

Summary and change from baseline of optical density values measured by total purified antigen ELISA. Optical density is the measure of absorbance, and is defined as the ratio of the intensity of light falling upon a material and the intensity transmitted.

Time frame: Baseline and Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1

ArmMeasureGroupValue (MEAN)Dispersion
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 1 - Up to 420 days post-treatment (Visit 11)1.24 Optical densityStandard Deviation 0.62
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 3 (FU Visit 3)1.16 Optical densityStandard Deviation 0.58
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 2: (FU Visit 1)1.23 Optical densityStandard Deviation 0.59
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 3: Change from Baseline (FU Visit 3)-0.30 Optical densityStandard Deviation 0.42
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 1 - Change from Baseline (Visit 11)-0.24 Optical densityStandard Deviation 0.29
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 4 (FU Visit 5)1.12 Optical densityStandard Deviation 0.57
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 2: Change from Baseline (FU Visit 1)-0.25 Optical densityStandard Deviation 0.41
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 4: Change from Baseline (FU Visit 5)-0.35 Optical densityStandard Deviation 0.4
Nifurtimox 60 Days / Arm 1Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 1 - Baseline (Visit 1)1.47 Optical densityStandard Deviation 0.55
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 4: Change from Baseline (FU Visit 5)-0.30 Optical densityStandard Deviation 0.46
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 1 - Baseline (Visit 1)1.52 Optical densityStandard Deviation 0.55
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 1 - Up to 420 days post-treatment (Visit 11)1.30 Optical densityStandard Deviation 0.61
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 1 - Change from Baseline (Visit 11)-0.23 Optical densityStandard Deviation 0.41
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 2: (FU Visit 1)1.29 Optical densityStandard Deviation 0.61
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 2: Change from Baseline (FU Visit 1)-0.23 Optical densityStandard Deviation 0.49
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 3 (FU Visit 3)1.23 Optical densityStandard Deviation 0.58
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 3: Change from Baseline (FU Visit 3)-0.30 Optical densityStandard Deviation 0.5
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 + Part 2 - Serial Reduction of Optical Density Values Measured by Total Purified Antigen ELISAPart 2 - Year 4 (FU Visit 5)1.23 Optical densityStandard Deviation 0.59
Secondary

Part 2 - ECG Signs of Established Chagas-related Cardiomyopathy

Summary of subjects by evidence of established Chagas-related cardiomyopathy as measured by electrocardiogram (ECG). Evidence of established Chagas-related cardiomyopathy: Total

Time frame: Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1

ArmMeasureGroupValue (NUMBER)
Nifurtimox 60 Days / Arm 1Part 2 - ECG Signs of Established Chagas-related CardiomyopathyYES0 Participants
Nifurtimox 60 Days / Arm 1Part 2 - ECG Signs of Established Chagas-related CardiomyopathyNO189 Participants
Nifurtimox 60 Days / Arm 1Part 2 - ECG Signs of Established Chagas-related CardiomyopathyMISSING8 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - ECG Signs of Established Chagas-related CardiomyopathyYES0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - ECG Signs of Established Chagas-related CardiomyopathyNO90 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - ECG Signs of Established Chagas-related CardiomyopathyMISSING8 Participants
Secondary

Part 2 - Incidence Rate of Seronegative Conversion in Subjects Who Received at Least One Dose of the 30-day Nifurtimox Treatment Regimen

Seronegative conversion measured by two types of assay (recombinant ELISA and indirect hemagglutination assay \[IHA\]) in subjects who were randomized and received at least one dose of the 30-day nifurtimox treatment regimen. Incidence rate is the number of new cases of seronegative conversion over the study period (i.e., 4 years after end of nifurtimox treatment) divided by the person-time at risk. It was modelled using a Poisson distribution with a 2-sided 95% exact CI. Number of participants with events were reported.

Time frame: Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1

ArmMeasureValue (NUMBER)
Nifurtimox 60 Days / Arm 1Part 2 - Incidence Rate of Seronegative Conversion in Subjects Who Received at Least One Dose of the 30-day Nifurtimox Treatment Regimen8 Participants
95% CI: [0.91, 4.16]
Secondary

Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)

TEAEs comprised events which first occurred or worsened at study start up to end of study in part 2. In Part 2, only AEs considered at least possibly related to nifurtimox (administered in part 1) and those caused by protocol-related procedures were reported.

Time frame: Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any AE related to protocol0 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any study drug-related SAE0 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any study drug-related AE0 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any SAE related to protocol0 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any SAE0 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)AE with outcome death0 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any AE0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)AE with outcome death0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any AE0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any study drug-related AE0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any AE related to protocol0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any SAE0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any study drug-related SAE0 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Number of Subjects With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)Any SAE related to protocol0 Participants
Secondary

Part 2 - Serological Response of Established Chagas-related Cardiomyopathy

Summary of subjects by evidence of established Chagas-related cardiomyopathy as measured by Serological response. Evidence of established Chagas-related cardiomyopathy: Total

Time frame: Subjects participating in Part 2 were followed up for another 3 years, for a total follow-up period of 4 years after end of nifurtimox treatment in Part 1

ArmMeasureGroupValue (NUMBER)
Nifurtimox 60 Days / Arm 1Part 2 - Serological Response of Established Chagas-related CardiomyopathyNon Reactive14 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Serological Response of Established Chagas-related CardiomyopathyReactive176 Participants
Nifurtimox 60 Days / Arm 1Part 2 - Serological Response of Established Chagas-related CardiomyopathyMissing7 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Serological Response of Established Chagas-related CardiomyopathyNon Reactive6 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Serological Response of Established Chagas-related CardiomyopathyReactive84 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 2 - Serological Response of Established Chagas-related CardiomyopathyMissing8 Participants
Other Pre-specified

Part 1: Number of Participants Cured With 60-day Regimen Compared With Historical Active Control (Benznidazole)

This exploratory efficacy analysis evaluated the cure rate assessed as seroconversion of nifurtimox after 1-year post-treatment follow-up with that of published data for benznidazole (Sosa Estani et al. 1998 and de Andrade et al. 1996) at 4- and 3-year post-treatment follow-up, respectively, used as historical control.

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1: Number of Participants Cured With 60-day Regimen Compared With Historical Active Control (Benznidazole)10 Participants
Other Pre-specified

Part 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All Patients

Cure is defined as sero-reduction (in subjects =\> 8 months to \< 18 years of age at randomization) or sero-conversion (in all subjects). Sero-reduction is defined as a =\> 20% reduction in optical density \[OD\]) measured by two conventional ELISA serology tests and sero-conversion is defined as negative Immunoglobulin G \[IgG\] concentration measured by two conventional ELISA serology tests. Cure = Cure Non reactive/reactive decreasing = Nonreac/reac dec Reactive non-decreasing = Reac nondec No cure = No Cure Missing IHA testing = IHA missing

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 60 days52 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 30 days17 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 60 days20 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 30 days4 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 60 days48 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 30 days29 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 30 days58 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 60 days89 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 60 days1 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship Between Conventional ELISA Results in Terms of Cure or No Cure and IHA Results in All PatientsNifurtimox 30 days0 Participants
Other Pre-specified

Part 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) Results

Sero-reduction is defined as a =\> 20% reduction in optical density \[OD\]) using two conventional ELISA serology tests in subjects =\> 8 months to \< 18 years of age at randomization; Others: reactive results that are not sero-reduction in subjects =\> 8 months to \< 18 years of age at randomization; or reactive results in subjects \< 8 months of age at randomization. Non-reactive ELISA = Nonreac ELISA Non-reactive IHA = Nonreac IHA Reactive IHA decrease = Reac IHA dec React IHA nochange = Reac IHA nochange Reactive ELISA: seroreduction = Reac ELISA reduc Reactive ELISA: others = Reac ELISA other

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days8 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days4 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days2 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days1 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days0 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days0 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days2 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days0 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days12 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days40 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days4 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days20 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days1 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days1 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days47 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days30 Participants
Nifurtimox 30 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days89 Participants
Nifurtimox 30 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days58 Participants
Nifurtimox 30 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 60 days1 Participants
Nifurtimox 30 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (ELISA) to Indirect Hemagglutination Assay (IHA) ResultsNifurtimox 30 days0 Participants
Other Pre-specified

Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by Visit

Using frequencies of matches and mismatches to assess agreement Reactive = Reac ELISA Reactive = Reac F29 Non-reactive = Nonreac ELISA Non-reactive= Nonreac F29

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1193 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 3133 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 8124 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1142 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 6131 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10108 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 177 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 890 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 11106 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 385 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1091 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 681 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 102 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 60 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 113 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 80 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 30 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1010 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 30 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 62 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 81 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 110 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 863 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 364 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1059 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1153 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 667 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 172 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 60 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 80 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 30 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 102 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 111 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 61 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 31 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 116 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 81 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 105 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Recombinant ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 11 Participants
Other Pre-specified

Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by Visit

Using frequencies of matches and mismatches to assess agreement Reactive = Reac ELISA Reactive = Reac F29 Non-reactive = Nonreac ELISA Non-reactive = Nonreac F29

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1193 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1142 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 3133 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 6131 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10108 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 8124 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 683 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 177 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 891 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 11106 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 385 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1092 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 102 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 60 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 30 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 80 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 113 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 109 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 30 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 60 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 863 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 118 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1061 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 364 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1154 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 172 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 863 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 667 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 642 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 843 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 343 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1042 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 138 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 1148 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 80 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 100 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 10 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 60 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 110 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 30 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 81 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 61 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 116 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 106 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 11 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and Non-conventional (ELISA-F29) Serologic Testing by VisitVisit 31 Participants
Other Pre-specified

Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by Visit

Using frequencies of matches and mismatches to assess agreement Reactive = Reac ELISA Detectable = Detec qPCR Non-reactive = Nonreac ELISA Non-detectable = Nondetec qPCR Non evaluable = Noneval qPCR qPCR Missing = Miss qPCR Missing conventional testing = Miss ELISA

Time frame: Up to 420 days (Visit 11 post-treatment)

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 103 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 83 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 113 Participants
Nifurtimox 60 Days / Arm 1Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 1117 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 8210 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 199 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 10195 Participants
Nifurtimox 30 Days, Then Placebo 30 Days / Arm 2Part 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 11194 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 10 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 80 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 100 Participants
Nifurtimox 60 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 110 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 10 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 1111 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 80 Participants
Nifurtimox 60 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 1011 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 82 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 111 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 102 Participants
Nifurtimox 60 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 11 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 12 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 80 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 111 Participants
Nifurtimox 60 Days Reactive qPCR MissingPart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 100 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 102 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 157 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 81 Participants
Nifurtimox 30 Days Reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 115 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 8103 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 152 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 1196 Participants
Nifurtimox 30 Days Reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 1099 Participants
Nifurtimox 30 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 100 Participants
Nifurtimox 30 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 110 Participants
Nifurtimox 30 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 80 Participants
Nifurtimox 30 Days Non-reactive DetectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 10 Participants
Nifurtimox 30 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 11 Participants
Nifurtimox 30 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 106 Participants
Nifurtimox 30 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 81 Participants
Nifurtimox 30 Days Non-reactive Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 116 Participants
Nifurtimox 30 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 82 Participants
Nifurtimox 30 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 102 Participants
Nifurtimox 30 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 11 Participants
Nifurtimox 30 Days Reactive Non EvaluablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 111 Participants
Nifurtimox 30 Days Missing Conventional Testing Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 10 Participants
Nifurtimox 30 Days Missing Conventional Testing Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 100 Participants
Nifurtimox 30 Days Missing Conventional Testing Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 81 Participants
Nifurtimox 30 Days Missing Conventional Testing Non-detectablePart 1 - Relationship of Conventional Serology (Total Purified Antigen ELISA) and qPCR Testing by VisitVisit 110 Participants

Source: ClinicalTrials.gov · Data processed: Feb 16, 2026