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Phase I Trial Evaluating the Safety and Pharmacokinetics of Oxfendazole

A Randomized, Double-Blind Placebo-Controlled Phase I Trial Evaluating the Safety and Pharmacokinetics of Oxfendazole

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02234570
Enrollment
70
Registered
2014-09-09
Start date
2014-11-17
Completion date
2015-11-24
Last updated
2020-11-02

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

Conditions

Neurocysticercosis

Keywords

neurocysticercosis, pork tapeworm, Taenia solium

Brief summary

The objectives of the Phase I study are to evaluate the safety and tolerance of increasing single oral doses of oxfendazole in healthy volunteers.The secondary objectives assess the pharmacokinetic profile of oxfendazole and assess the metabolism of oxfendazole. The description of agent used is single oral dose of an aqueous suspension of oxfendazole, a benzimidazole carbamate antiparasitic drug. Each new cohort will be dosed only after the two week safety data for the preceding group have been reviewed. If a clinically significant AE is observed, and if this event is drug-related the safety monitoring committee will be convened to determine whether the study should continue.

Detailed description

This Phase I study is a randomized, double-blind, placebo-controlled evaluation of the safety and pharmacokinetics of escalating single oral doses of oxfendazole (0.5 to 60 mg/kg) in healthy volunteers. Up to 70 healthy males and females (non-chldbearing potential), ages 18-45 volunteers recruited from one site will participate in this study. The study duration is approximately 18 months with subject participation of 2 weeks. The primary objective assess the safety and tolerability of oxfendazole in healthy adults. The secondary objectives assess the pharmacokinetic profile of oxfendazole and assess the metabolism of oxfendazole. Two sentinel subjects will receive the study product (1 drug/1 placebo) in each group and be monitored 48 hours for adverse events prior to completing enrollment of the remaining 8 subjects in the group.

Interventions

A benzimidazole carbamate antiparasitic drug. Oral Dose levels of 0.5,1, 3, 7.5, 15, 30, and 60 mg/kg will be evaluated sequentially, the dose increasing with each new cohort Group 1 to Group 7.

OTHERPlacebo

Normal Saline administered with an oral dosing syringe. Group 1- Group 6

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

1\. Males and females of non-childbearing potential between the ages of 18 and 45 years, inclusive.\* \*Surgically sterile via tubal ligation, bilateral oophorectomy or hysterectomy or who have been postmenopausal for \>/=1 year confirmed by LH and FSH levels. 2. In good health, as judged by the investigator and determined by vital signs\* Temperature \< 38 degrees Celsius, heart rate \</=100 bpm and \> 50 bpm, systolic blood pressure \</= 140 mmHg and \> 89 mmHg, diastolic blood pressure \</=90 mmHg and \>/= 60 mm Hg, medical history and a targeted physical examination. BMI \>/=18 and \</= 35. Athletically trained subjects with a pulse \>/= 45 may be enrolled at the discretion of the principal investigator or designated licensed clinical investigator. 3. Acceptable screening laboratories\* \*Hemoglobin, white blood cell (WBC) count, neutrophil, eosinophil and platelet counts within normal ranges. AST \< 44 and ALT \< 44 and total bilirubin, creatinine must be equal to or below the upper limit of normal (for eosinophil count, AST, ALT, creatinine, and total bilirubin values below the normal range are acceptable). Random blood glucose must be \<140. Urine dipstick testing must be negative for glucose and negative or trace for protein. The following serology tests must be negative: HIV 1/2 antibody, hepatitis B surface antigen (HBsAg), and hepatitis C virus (HCV) antibody. HIV and hepatitis C viral load PCR testing may be performed for individuals suspected of having indeterminate antibody testing. 4. Male participants must be willing to ensure use of condoms and spermicides for 4 months after study drug administration. 5. Provide written informed consent before initiation of any study procedures. 6. Willing to be available for all study-required procedures, and visits for the duration of the study. 7. Able to provide a home phone number, and the name, address, and/or email of a person willing to assist with making contact during the follow-up phase of the study.

Exclusion criteria

1\. History of residing for 6 or more months in regions with endemic cysticercosis as determined by the principal investigator or a designated study physician. 2. Breastfeeding females. 3. Body temperature \>/=100.4 degrees Fahrenheit (\>/=38.0 degrees Celsius) or acute illness within 3 days before administration of study drug (subject may be rescheduled). 4. Chronic or acute medical disorder\* \*Disorders of the cardiac, pulmonary, liver, kidney, neurologic, gastrointestinal or other system, such that in the opinion of the investigator participation in the study creates additional risk to the subject, or to the validity of the study. 5. Use of chronic systemic medications\* \*Intermittent use of over the counter medications such as acetaminophen, ibuprofen, cold and sinus medications are permitted for enrollment (please see section 5.6 for instructions on medication use during the study).Topical medications, nasal steroids are permitted throughout the study. Use of the prescription medications used less than once per week on average are permitted for enrollment (see section 5.6 for instructions on medication use during the study). If the subject has taken a short term prescription medication within the past 30 days (e.g. an antibiotic), they should be postponed from enrollment until 30 days have elapsed since the last dose 6. Has history of sensitivity to related benzimidazole compounds (e.g., albendazole, mebendazole). 7. A diagnosis of schizophrenia, bipolar disease, or history of hospitalization for a psychiatric condition or previous suicide attempt. 8. A history of treatment for any other psychiatric disorder in the past 3 years.\* \*Past treatment for ADHD does not exclude participants from enrollment as long as the medications have been discontinued for a minimum of 3 months and symptoms are well controlled. 9. Received an experimental agent\* within 1 month before administration of study drug or expect to receive an experimental agent during the 15-day study period. \*Vaccine, drug, biologic, device, blood product, or medication. 10. Any condition that would, in the opinion of the investigator, place them at an unacceptable risk of injury, render them unable to meet the requirements of the protocol, or that may interfere with successful completion of the study. 11. A history of alcohol consumption\* or any illicit drug use†, or history of substance abuse#. Individuals must agree to abstain from drug or alcohol use for 48 hours prior to enrollment through day 15. \*Greater than 7 alcoholic drinks per week. †Other than occasional marijuana use (less than once per week for the past 60 days is acceptable). #Alcohol or illicit drugs within the past 3 years. 12. History of chronic tobacco use in the past 60 days.\* \*A history of occasional tobacco use (less than 1 pack per week on average) is acceptable. Individuals will be counseled to abstain from use of tobacco and marijuana from screening through day 15.

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.Within 14 Days of first doseAll adverse events, defined as any untoward medical occurrence regardless of its causal relationship to the study treatment, were collected for 14 days after dosing. The PI then determined relatedness to the study drug. Related was defined as there is a reasonable possibility that the study product caused the adverse event. Reasonable possibility means that there is evidence to suggest a causal relationship between the study product and the adverse event.

Secondary

MeasureTime frameDescription
Maximum Observed Concentration (Cmax) of Oxfendazole in Plasma0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-doseCmax is defined as the maximum observed drug concentration observed in plasma over all PK sample concentrations computed from concentrations that were measured using a validated HPLC-MS/MS method.
Plasma Concentrations of Oxfendazole FenbendazoleDay 1-Day15Concentrations of oxfendazole fenbendazole in plasma were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.
Plasma Concentrations of Oxfendazole SulfoneDay 1-Day15Concentrations of oxfendazole sulfone in plasma were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.
Area Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-doseAUC(0-infinity) was defined as the total area under the concentration-time curve from dosing (time 0) taken to the limit as the end time becomes arbitrarily large. AUC(0-infinity) and was calculated by adding AUC(0-last) to an extrapolated value equal to the last measured concentration greater than the lower limit of quantification of the bioanalytical assay divided by the terminal phase elimination rate constant (Ke) computed from concentrations that were measured using a validated HPLCMS/MS method
Time of Maximum Observed Concentration (Tmax) of Oxfendazole0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-doseTmax was defined as the time at which the maximum concentration (Cmax) occurs in plasma computed from concentrations that were measured using a validated HPLCMS/MS method.
Urine Concentrations of Oxfendazole FenbendazoleDay 1-Day 15Concentrations of oxfendazole fenbendazole in urine were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.
Urine Concentrations of Oxfendazole SulfoneDay 1-Day 15Concentrations of oxfendazole sulfone in urine were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.
Terminal Elimination Half-life (t1/2) of Oxfendazole0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-doseThe apparent terminal elimination half-life (t1/2) was defined as the time required for the drug concentration to decrease by a factor of one-half in the terminal phase computed from concentrations that were measured using a validated HPLCMS/MS method.

Countries

United States

Participant flow

Recruitment details

Participants were healthy adult males and non-pregnant females recruited from existing volunteer populations and from the communities at large around the clinical site. Participants were enrolled between 17NOV2014 and 09NOV2015.

Participants by arm

ArmCount
0.5 mg/kg Oxfendazole
Participants received a single oral dose 0.5 mg/kg of oxfendazole.
8
1 mg/kg Oxfendazole
Participants received a single oral dose 1 mg/kg of oxfendazole
8
3 mg/kg Oxfendazole
Participants received a single oral dose 3 mg/kg of oxfendazole
8
7.5 mg/kg Oxfendazole
Participants received a single oral dose 7.5 mg/kg of oxfendazole
8
15 mg/kg Oxfendazole
Participants received a single oral dose 15 mg/kg of oxfendazole
8
30 mg/kg Oxfendazole
Participants received a single oral dose 30 mg/kg of oxfendazole
8
60 mg/kg Oxfendazole
Participants received a single oral dose 60 mg/kg of oxfendazole
8
Placebo
Participants received a single placebo formulation consisting of 4.5% polyethylene glycol, 0.18% methyl paraben, and 95.32% sterile water for injection
14
Total70

Baseline characteristics

Characteristic1 mg/kg Oxfendazole3 mg/kg Oxfendazole7.5 mg/kg Oxfendazole15 mg/kg Oxfendazole30 mg/kg Oxfendazole60 mg/kg Oxfendazole0.5 mg/kg OxfendazolePlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants8 Participants8 Participants8 Participants8 Participants8 Participants8 Participants14 Participants70 Participants
Age, Continuous26.6 years
STANDARD_DEVIATION 6.8
23.8 years
STANDARD_DEVIATION 6.1
26.3 years
STANDARD_DEVIATION 7.1
26.8 years
STANDARD_DEVIATION 9.3
22.6 years
STANDARD_DEVIATION 6.7
24.6 years
STANDARD_DEVIATION 8
26.8 years
STANDARD_DEVIATION 6.7
26.9 years
STANDARD_DEVIATION 7.2
25.6 years
STANDARD_DEVIATION 7.1
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants2 Participants0 Participants2 Participants1 Participants2 Participants0 Participants0 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants5 Participants8 Participants6 Participants7 Participants6 Participants8 Participants14 Participants61 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants2 Participants0 Participants0 Participants1 Participants0 Participants0 Participants4 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants3 Participants1 Participants0 Participants0 Participants0 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants2 Participants3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants1 Participants1 Participants0 Participants0 Participants2 Participants
Race (NIH/OMB)
White
8 Participants7 Participants6 Participants5 Participants6 Participants6 Participants7 Participants12 Participants57 Participants
Region of Enrollment
United States
8 participants8 participants8 participants8 participants8 participants8 participants8 participants14 participants70 participants
Sex: Female, Male
Female
1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants3 Participants
Sex: Female, Male
Male
7 Participants8 Participants7 Participants8 Participants8 Participants8 Participants8 Participants13 Participants67 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
deaths
Total, all-cause mortality
0 / 80 / 80 / 80 / 80 / 80 / 80 / 80 / 14
other
Total, other adverse events
1 / 82 / 82 / 80 / 81 / 81 / 82 / 81 / 14
serious
Total, serious adverse events
0 / 80 / 80 / 80 / 80 / 80 / 80 / 80 / 14

Outcome results

Primary

Number of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.

All adverse events, defined as any untoward medical occurrence regardless of its causal relationship to the study treatment, were collected for 14 days after dosing. The PI then determined relatedness to the study drug. Related was defined as there is a reasonable possibility that the study product caused the adverse event. Reasonable possibility means that there is evidence to suggest a causal relationship between the study product and the adverse event.

Time frame: Within 14 Days of first dose

Population: All participants are included in the analysis population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
0.5 mg/kg OxfendazoleNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.0 Participants
1 mg/kg OxfendazoleNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.0 Participants
3 mg/kg OxfendazoleNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.1 Participants
7.5 mg/kg OxfendazoleNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.0 Participants
15 mg/kg OxfendazoleNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.0 Participants
30 mg/kg OxfendazoleNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.1 Participants
60 mg/kg OxfendazoleNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.1 Participants
PlaceboNumber of Subjects Reporting Adverse Events Related to Oxfendazole Within 14 Days of Receipt of a Single Oral Dose.1 Participants
Secondary

Area Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole

AUC(0-infinity) was defined as the total area under the concentration-time curve from dosing (time 0) taken to the limit as the end time becomes arbitrarily large. AUC(0-infinity) and was calculated by adding AUC(0-last) to an extrapolated value equal to the last measured concentration greater than the lower limit of quantification of the bioanalytical assay divided by the terminal phase elimination rate constant (Ke) computed from concentrations that were measured using a validated HPLCMS/MS method

Time frame: 0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-dose

Population: All participants receiving oxfendazole are included in the analysis population.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
0.5 mg/kg OxfendazoleArea Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole11682.4 ng•hr/mLGeometric Coefficient of Variation 44.8
1 mg/kg OxfendazoleArea Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole13117.7 ng•hr/mLGeometric Coefficient of Variation 54.4
3 mg/kg OxfendazoleArea Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole30803.1 ng•hr/mLGeometric Coefficient of Variation 20.1
7.5 mg/kg OxfendazoleArea Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole73928.9 ng•hr/mLGeometric Coefficient of Variation 40.6
15 mg/kg OxfendazoleArea Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole99542.6 ng•hr/mLGeometric Coefficient of Variation 23.9
30 mg/kg OxfendazoleArea Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole78344.0 ng•hr/mLGeometric Coefficient of Variation 34.4
60 mg/kg OxfendazoleArea Under the Concentration Time-curve From Time Zero to Infinity (AUC(0-infinity)) for Oxfendazole108618.2 ng•hr/mLGeometric Coefficient of Variation 38.4
Secondary

Maximum Observed Concentration (Cmax) of Oxfendazole in Plasma

Cmax is defined as the maximum observed drug concentration observed in plasma over all PK sample concentrations computed from concentrations that were measured using a validated HPLC-MS/MS method.

Time frame: 0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-dose

Population: All participants receiving oxfendazole are included in the analysis population.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
0.5 mg/kg OxfendazoleMaximum Observed Concentration (Cmax) of Oxfendazole in Plasma943.9 ng/mLGeometric Coefficient of Variation 28.4
1 mg/kg OxfendazoleMaximum Observed Concentration (Cmax) of Oxfendazole in Plasma1155.9 ng/mLGeometric Coefficient of Variation 26.8
3 mg/kg OxfendazoleMaximum Observed Concentration (Cmax) of Oxfendazole in Plasma2436.9 ng/mLGeometric Coefficient of Variation 24
7.5 mg/kg OxfendazoleMaximum Observed Concentration (Cmax) of Oxfendazole in Plasma4781.3 ng/mLGeometric Coefficient of Variation 25.6
15 mg/kg OxfendazoleMaximum Observed Concentration (Cmax) of Oxfendazole in Plasma6254.8 ng/mLGeometric Coefficient of Variation 21.7
30 mg/kg OxfendazoleMaximum Observed Concentration (Cmax) of Oxfendazole in Plasma5301.3 ng/mLGeometric Coefficient of Variation 30.5
60 mg/kg OxfendazoleMaximum Observed Concentration (Cmax) of Oxfendazole in Plasma6768.4 ng/mLGeometric Coefficient of Variation 31.3
Secondary

Plasma Concentrations of Oxfendazole Fenbendazole

Concentrations of oxfendazole fenbendazole in plasma were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.

Time frame: Day 1-Day15

Population: All participants receiving oxfendazole are included in the analysis population

ArmMeasureGroupValue (MEAN)Dispersion
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 80.4 ng/mLStandard Deviation 0.5
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole4 Hours0.6 ng/mLStandard Deviation 1.8
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 150.4 ng/mLStandard Deviation 0.5
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 40.4 ng/mLStandard Deviation 0.5
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole1 Hour0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole6 Hours0.5 ng/mLStandard Deviation 1.3
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 60.4 ng/mLStandard Deviation 0.5
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole2 Hours0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole12 Hours0.3 ng/mLStandard Deviation 0.9
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole10 Hours0.3 ng/mLStandard Deviation 0.8
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 30.4 ng/mLStandard Deviation 0.5
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole8 Hours0.3 ng/mLStandard Deviation 0.9
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole24 Hours0.7 ng/mLStandard Deviation 1
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 60.9 ng/mLStandard Deviation 0.4
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole24 Hours2.3 ng/mLStandard Deviation 1.6
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole12 Hours2.3 ng/mLStandard Deviation 1.4
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole2 Hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 80.9 ng/mLStandard Deviation 0.4
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole4 Hours0.8 ng/mLStandard Deviation 1.1
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole1 Hour0 ng/mLStandard Deviation 0
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole6 Hours2.0 ng/mLStandard Deviation 1.4
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 40.9 ng/mLStandard Deviation 0.4
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole8 Hours1.9 ng/mLStandard Deviation 1.2
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 150.9 ng/mLStandard Deviation 0.4
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 30.9 ng/mLStandard Deviation 0.4
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole10 Hours2.3 ng/mLStandard Deviation 1.2
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole1 Hour0.3 ng/mLStandard Deviation 0.8
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole4 Hours3.5 ng/mLStandard Deviation 2.5
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 81.0 ng/mLStandard Deviation 0
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole2 Hours0.4 ng/mLStandard Deviation 0.8
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole8 Hours5.2 ng/mLStandard Deviation 2.9
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole12 Hours6.7 ng/mLStandard Deviation 2.4
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 33.2 ng/mLStandard Deviation 2.8
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole24 Hours7.1 ng/mLStandard Deviation 2.5
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 61.0 ng/mLStandard Deviation 0
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole10 Hours6.8 ng/mLStandard Deviation 2.6
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole6 Hours4.8 ng/mLStandard Deviation 2.9
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 151.0 ng/mLStandard Deviation 0
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 41.1 ng/mLStandard Deviation 0.4
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole12 Hours10.1 ng/mLStandard Deviation 5.5
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole1 Hour0.3 ng/mLStandard Deviation 0.7
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole2 Hours1.1 ng/mLStandard Deviation 1.5
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole4 Hours3.0 ng/mLStandard Deviation 3.2
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole6 Hours6.6 ng/mLStandard Deviation 4.8
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole8 Hours6.7 ng/mLStandard Deviation 4.6
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole10 Hours10.0 ng/mLStandard Deviation 5.7
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole24 Hours4.9 ng/mLStandard Deviation 4
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 32.2 ng/mLStandard Deviation 1.7
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 41.4 ng/mLStandard Deviation 1
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 61.0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 81.0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 151.0 ng/mLStandard Deviation 0
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole6 Hours9.9 ng/mLStandard Deviation 8.3
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 61.0 ng/mLStandard Deviation 0
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 41.2 ng/mLStandard Deviation 0.6
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole24 Hours10.0 ng/mLStandard Deviation 3.7
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 151.0 ng/mLStandard Deviation 0
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole4 Hours8.1 ng/mLStandard Deviation 8
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole8 Hours10.8 ng/mLStandard Deviation 8.3
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole1 Hour1.0 ng/mLStandard Deviation 1.4
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 33.7 ng/mLStandard Deviation 3.4
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole10 Hours11.2 ng/mLStandard Deviation 6.6
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 81.0 ng/mLStandard Deviation 0
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole2 Hours2.6 ng/mLStandard Deviation 2.5
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole12 Hours11.7 ng/mLStandard Deviation 7.9
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole4 Hours4.4 ng/mLStandard Deviation 4.3
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole24 Hours5.4 ng/mLStandard Deviation 3.2
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole8 Hours5.0 ng/mLStandard Deviation 5.1
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 32.5 ng/mLStandard Deviation 3.1
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole6 Hours5.8 ng/mLStandard Deviation 6.7
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 41.3 ng/mLStandard Deviation 1.4
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole1 Hour1.4 ng/mLStandard Deviation 1.2
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 60.9 ng/mLStandard Deviation 0.4
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole2 Hours2.2 ng/mLStandard Deviation 1.5
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 150.9 ng/mLStandard Deviation 0.4
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 80.9 ng/mLStandard Deviation 0.4
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole12 Hours6.4 ng/mLStandard Deviation 4.5
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole10 Hours5.5 ng/mLStandard Deviation 4.5
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole24 Hours16.7 ng/mLStandard Deviation 12.9
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole6 Hours12.4 ng/mLStandard Deviation 4.9
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole12 Hours20.9 ng/mLStandard Deviation 19
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 35.5 ng/mLStandard Deviation 4.2
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole10 Hours18.4 ng/mLStandard Deviation 11.1
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 81.0 ng/mLStandard Deviation 0
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole1 Hour5.9 ng/mLStandard Deviation 2.4
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole4 Hours8.0 ng/mLStandard Deviation 3.6
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 42.5 ng/mLStandard Deviation 3
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 151.0 ng/mLStandard Deviation 0
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole8 Hours15.5 ng/mLStandard Deviation 8.6
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole FenbendazoleDay 61.7 ng/mLStandard Deviation 1.9
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Fenbendazole2 Hours6.3 ng/mLStandard Deviation 2.5
Secondary

Plasma Concentrations of Oxfendazole Sulfone

Concentrations of oxfendazole sulfone in plasma were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.

Time frame: Day 1-Day15

Population: All participants receiving oxfendazole are included in the analysis population

ArmMeasureGroupValue (MEAN)Dispersion
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone12 Hours56.8 ng/mLStandard Deviation 17.5
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone8 Hours59.7 ng/mLStandard Deviation 13.7
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone10 Hours62.8 ng/mLStandard Deviation 22.3
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 81.0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone2 Hours48.7 ng/mLStandard Deviation 9.3
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 61.2 ng/mLStandard Deviation 0.4
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 43.6 ng/mLStandard Deviation 3.1
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone4 Hours52.3 ng/mLStandard Deviation 8.6
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 311.4 ng/mLStandard Deviation 11.8
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone24 Hours30.9 ng/mLStandard Deviation 23.4
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone6 Hours57.3 ng/mLStandard Deviation 15.1
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 151.0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone1 Hour28.5 ng/mLStandard Deviation 4.6
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone24 Hours38.9 ng/mLStandard Deviation 31.7
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone10 Hours70.7 ng/mLStandard Deviation 28.5
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone6 Hours75.1 ng/mLStandard Deviation 26.6
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone8 Hours78.2 ng/mLStandard Deviation 27
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 81.0 ng/mLStandard Deviation 0
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone4 Hours67.6 ng/mLStandard Deviation 16
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 151.0 ng/mLStandard Deviation 0
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 311.1 ng/mLStandard Deviation 10.3
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone2 Hours56.0 ng/mLStandard Deviation 11.3
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone1 Hour31.1 ng/mLStandard Deviation 11.1
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 61.3 ng/mLStandard Deviation 1
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone12 Hours65.4 ng/mLStandard Deviation 30.9
1 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 42.8 ng/mLStandard Deviation 3.5
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone12 Hours111.4 ng/mLStandard Deviation 12.4
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone1 Hour73.0 ng/mLStandard Deviation 24.1
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone2 Hours106.3 ng/mLStandard Deviation 31.5
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone4 Hours108.1 ng/mLStandard Deviation 25.7
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone6 Hours113.8 ng/mLStandard Deviation 26.2
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone8 Hours135.5 ng/mLStandard Deviation 33.9
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone24 Hours68.5 ng/mLStandard Deviation 21
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone10 Hours119.4 ng/mLStandard Deviation 18.7
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 320.8 ng/mLStandard Deviation 12.2
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 45.7 ng/mLStandard Deviation 3.8
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 61.3 ng/mLStandard Deviation 0.8
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 81.0 ng/mLStandard Deviation 0
3 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 151.0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone24 Hours176.7 ng/mLStandard Deviation 125.5
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone10 Hours308.7 ng/mLStandard Deviation 120.1
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 151.0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 364.8 ng/mLStandard Deviation 94.9
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone1 Hour100.5 ng/mLStandard Deviation 25.4
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone4 Hours223.8 ng/mLStandard Deviation 62.5
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone6 Hours264.1 ng/mLStandard Deviation 63
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone12 Hours296.0 ng/mLStandard Deviation 90.3
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone8 Hours296.2 ng/mLStandard Deviation 71.5
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 81.0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 66.4 ng/mLStandard Deviation 10.2
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone2 Hours182.3 ng/mLStandard Deviation 51.6
7.5 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 417.3 ng/mLStandard Deviation 27.2
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone1 Hour111.6 ng/mLStandard Deviation 51.9
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone10 Hours340.8 ng/mLStandard Deviation 68.1
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone6 Hours308.3 ng/mLStandard Deviation 98.8
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone12 Hours359.3 ng/mLStandard Deviation 102.1
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone24 Hours261.8 ng/mLStandard Deviation 83.4
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone4 Hours258.6 ng/mLStandard Deviation 73
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 375.1 ng/mLStandard Deviation 47.6
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 416.7 ng/mLStandard Deviation 15.1
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone2 Hours219.2 ng/mLStandard Deviation 73
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 151.0 ng/mLStandard Deviation 0
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 61.2 ng/mLStandard Deviation 0.6
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 81.0 ng/mLStandard Deviation 0
15 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone8 Hours336.8 ng/mLStandard Deviation 72.2
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone2 Hours262.6 ng/mLStandard Deviation 72.5
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone24 Hours185.2 ng/mLStandard Deviation 90.5
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone4 Hours285.7 ng/mLStandard Deviation 74.5
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone10 Hours352.4 ng/mLStandard Deviation 106
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 417.2 ng/mLStandard Deviation 23.6
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone8 Hours356.3 ng/mLStandard Deviation 120.1
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone1 Hour161.5 ng/mLStandard Deviation 41.3
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 151.0 ng/mLStandard Deviation 0
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone12 Hours343.7 ng/mLStandard Deviation 111.7
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 81.0 ng/mLStandard Deviation 0
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 64.0 ng/mLStandard Deviation 7.7
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone6 Hours330.3 ng/mLStandard Deviation 90.1
30 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 357.5 ng/mLStandard Deviation 54.4
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 151.0 ng/mLStandard Deviation 0
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone2 Hours319.0 ng/mLStandard Deviation 119.9
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone24 Hours362.2 ng/mLStandard Deviation 222.7
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone6 Hours404.6 ng/mLStandard Deviation 154.7
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 3119.5 ng/mLStandard Deviation 86.8
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 433.8 ng/mLStandard Deviation 28.6
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 81.1 ng/mLStandard Deviation 0.4
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone4 Hours345.4 ng/mLStandard Deviation 133
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone8 Hours454.8 ng/mLStandard Deviation 174
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone12 Hours487.7 ng/mLStandard Deviation 210.3
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone10 Hours470.7 ng/mLStandard Deviation 182.5
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole SulfoneDay 66.6 ng/mLStandard Deviation 9.4
60 mg/kg OxfendazolePlasma Concentrations of Oxfendazole Sulfone1 Hour209.1 ng/mLStandard Deviation 84.5
Secondary

Terminal Elimination Half-life (t1/2) of Oxfendazole

The apparent terminal elimination half-life (t1/2) was defined as the time required for the drug concentration to decrease by a factor of one-half in the terminal phase computed from concentrations that were measured using a validated HPLCMS/MS method.

Time frame: 0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-dose

Population: All participants receiving oxfendazole are included in the analysis population.

ArmMeasureValue (MEAN)Dispersion
0.5 mg/kg OxfendazoleTerminal Elimination Half-life (t1/2) of Oxfendazole9.1 hoursStandard Deviation 27.5
1 mg/kg OxfendazoleTerminal Elimination Half-life (t1/2) of Oxfendazole8.5 hoursStandard Deviation 25.3
3 mg/kg OxfendazoleTerminal Elimination Half-life (t1/2) of Oxfendazole10.3 hoursStandard Deviation 35.7
7.5 mg/kg OxfendazoleTerminal Elimination Half-life (t1/2) of Oxfendazole9.6 hoursStandard Deviation 34.2
15 mg/kg OxfendazoleTerminal Elimination Half-life (t1/2) of Oxfendazole10.0 hoursStandard Deviation 21.8
30 mg/kg OxfendazoleTerminal Elimination Half-life (t1/2) of Oxfendazole9.8 hoursStandard Deviation 33.7
60 mg/kg OxfendazoleTerminal Elimination Half-life (t1/2) of Oxfendazole11.0 hoursStandard Deviation 44.5
Secondary

Time of Maximum Observed Concentration (Tmax) of Oxfendazole

Tmax was defined as the time at which the maximum concentration (Cmax) occurs in plasma computed from concentrations that were measured using a validated HPLCMS/MS method.

Time frame: 0, 1, 2, 4, 6, 8, 10, 12, 24, 48, 72, 120, 168, 336 hours post-dose

Population: All participants receiving oxfendazole are included in the analysis population.

ArmMeasureValue (MEDIAN)
0.5 mg/kg OxfendazoleTime of Maximum Observed Concentration (Tmax) of Oxfendazole2.0 hours
1 mg/kg OxfendazoleTime of Maximum Observed Concentration (Tmax) of Oxfendazole2.0 hours
3 mg/kg OxfendazoleTime of Maximum Observed Concentration (Tmax) of Oxfendazole2.0 hours
7.5 mg/kg OxfendazoleTime of Maximum Observed Concentration (Tmax) of Oxfendazole2.0 hours
15 mg/kg OxfendazoleTime of Maximum Observed Concentration (Tmax) of Oxfendazole2.0 hours
30 mg/kg OxfendazoleTime of Maximum Observed Concentration (Tmax) of Oxfendazole2.0 hours
60 mg/kg OxfendazoleTime of Maximum Observed Concentration (Tmax) of Oxfendazole2.0 hours
Secondary

Urine Concentrations of Oxfendazole Fenbendazole

Concentrations of oxfendazole fenbendazole in urine were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.

Time frame: Day 1-Day 15

Population: All participants receiving oxfendazole are included in the analysis population.

ArmMeasureGroupValue (MEAN)Dispersion
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole48-60 hours0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole4-8 hours0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole12-24 hours0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole0-4 hours0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole8-12 hours0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole24-32 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole0-4 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole12-24 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole48-60 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole4-8 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole24-32 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole8-12 hours0 ng/mLStandard Deviation 0
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole24-32 hours0 ng/mLStandard Deviation 0
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole8-12 hours0 ng/mLStandard Deviation 0
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole48-60 hours0 ng/mLStandard Deviation 0
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole12-24 hours0 ng/mLStandard Deviation 0
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole0-4 hours0 ng/mLStandard Deviation 0
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole4-8 hours0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole24-32 hours0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole0-4 hours0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole4-8 hours0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole8-12 hours0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole12-24 hours0 ng/mLStandard Deviation 0
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole48-60 hours0.28 ng/mLStandard Deviation 0.78
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole12-24 hours0 ng/mLStandard Deviation 0
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole4-8 hours0 ng/mLStandard Deviation 0
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole24-32 hours0 ng/mLStandard Deviation 0
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole48-60 hours0 ng/mLStandard Deviation 0
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole8-12 hours0 ng/mLStandard Deviation 0
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole0-4 hours0 ng/mLStandard Deviation 0
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole8-12 hours0 ng/mLStandard Deviation 0
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole12-24 hours0 ng/mLStandard Deviation 0
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole4-8 hours0 ng/mLStandard Deviation 0
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole24-32 hours0 ng/mLStandard Deviation 0
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole0-4 hours0 ng/mLStandard Deviation 0
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole48-60 hours0 ng/mLStandard Deviation 0
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole8-12 hours0 ng/mLStandard Deviation 0
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole4-8 hours0 ng/mLStandard Deviation 0
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole48-60 hours0 ng/mLStandard Deviation 0
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole12-24 hours0 ng/mLStandard Deviation 0
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole24-32 hours0.03 ng/mLStandard Deviation 0.07
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Fenbendazole0-4 hours0 ng/mLStandard Deviation 0
Secondary

Urine Concentrations of Oxfendazole Sulfone

Concentrations of oxfendazole sulfone in urine were measured using a validated HPLCMS/MS method. Concentrations \<LLOQ (2 ng/mL) set to LLOQ/2 if after 1st =LLOQ concentration or 0 otherwise for calculating summary statistics.

Time frame: Day 1-Day 15

Population: All participants receiving oxfendazole are included in the analysis population.

ArmMeasureGroupValue (MEAN)Dispersion
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone48-60 hours0 ng/mLStandard Deviation 0
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone4-8 hours18.9 ng/mLStandard Deviation 13.8
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone12-24 hours18.9 ng/mLStandard Deviation 29.1
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone0-4 hours9.1 ng/mLStandard Deviation 16.8
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone8-12 hours34.1 ng/mLStandard Deviation 50.3
0.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone24-32 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone0-4 hours4.1 ng/mLStandard Deviation 11.6
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone12-24 hours26.3 ng/mLStandard Deviation 33.7
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone48-60 hours0 ng/mLStandard Deviation 0
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone4-8 hours24.9 ng/mLStandard Deviation 18.3
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone24-32 hours0.9 ng/mLStandard Deviation 2.6
1 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone8-12 hours26.5 ng/mLStandard Deviation 22.9
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone24-32 hours1.2 ng/mLStandard Deviation 3.4
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone8-12 hours30.3 ng/mLStandard Deviation 14.7
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone48-60 hours0 ng/mLStandard Deviation 0
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone12-24 hours15.8 ng/mLStandard Deviation 18.5
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone0-4 hours19.9 ng/mLStandard Deviation 25.7
3 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone4-8 hours38.2 ng/mLStandard Deviation 20.3
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone24-32 hours3.2 ng/mLStandard Deviation 4.9
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone0-4 hours45.6 ng/mLStandard Deviation 37
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone4-8 hours86.0 ng/mLStandard Deviation 68.9
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone8-12 hours76.0 ng/mLStandard Deviation 60.1
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone12-24 hours100.4 ng/mLStandard Deviation 87.2
7.5 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone48-60 hours0.8 ng/mLStandard Deviation 1.6
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone12-24 hours91.8 ng/mLStandard Deviation 46.7
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone4-8 hours88.1 ng/mLStandard Deviation 27.6
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone24-32 hours7.5 ng/mLStandard Deviation 9.1
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone48-60 hours0 ng/mLStandard Deviation 0
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone8-12 hours92.3 ng/mLStandard Deviation 33.3
15 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone0-4 hours46.4 ng/mLStandard Deviation 20.9
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone8-12 hours99.7 ng/mLStandard Deviation 40.8
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone12-24 hours69.9 ng/mLStandard Deviation 49
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone4-8 hours105.8 ng/mLStandard Deviation 36.4
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone24-32 hours18.2 ng/mLStandard Deviation 32.4
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone0-4 hours68.0 ng/mLStandard Deviation 21.2
30 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone48-60 hours7.3 ng/mLStandard Deviation 9.7
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone8-12 hours92.9 ng/mLStandard Deviation 39.7
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone4-8 hours124.1 ng/mLStandard Deviation 72.8
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone48-60 hours5.3 ng/mLStandard Deviation 7.3
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone12-24 hours139.0 ng/mLStandard Deviation 137.7
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone24-32 hours26.1 ng/mLStandard Deviation 32.4
60 mg/kg OxfendazoleUrine Concentrations of Oxfendazole Sulfone0-4 hours64.5 ng/mLStandard Deviation 44.5

Source: ClinicalTrials.gov · Data processed: Mar 3, 2026