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Efficacy and Safety of Rifasutenizol (TNP 2198), Rabeprazole and Amoxicillin in Participants With H. Pylori Infection

Phase 3 Clinical Trial to Evaluate the Efficacy and Safety of Rifasutenizol (TNP 2198) in Combination With Rabeprazole and Amoxicillin in the Primary Treatment of Participants With H. Pylori Infection

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05857163
Enrollment
700
Registered
2023-05-12
Start date
2023-05-18
Completion date
2024-03-26
Last updated
2025-08-17

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

Conditions

H.Pylori Infection

Brief summary

A multi-center, randomized, double-blind, bismuth-containing quadruple active comparator-controlled Phase 3 clinical study to evaluate the efficacy and safety of Rifasutenizol in combination with rabeprazole and amoxicillin in the primary treatment of participants with H. pylori infection using an adaptive design with sample size re-estimation.

Detailed description

Subjects will be randomly assigned to test group or control group at a 1:1 ratio stratified by study site, and will receive Rifasutenizol capsules, rabeprazole sodium enteric-coated tablets, amoxicillin capsules combined with clarithromycin placebo tablets and bismuth potassium citrate placebo capsules (test group), or bismuth-containing quadruple regimen of amoxicillin capsules, clarithromycin tablets, rabeprazole sodium enteric-coated tablets and bismuth potassium citrate capsules combined with Rifasutenizol placebo capsules (control group) for 14 consecutive days. carbon-13 (13C) UBT will be performed 4-6 weeks after the last dose to evaluate the eradication effect of H. pylori.

Interventions

1 g, BID, taken orally within half an hour after breakfast and dinner.

DRUGRifasutenizol capsules

400 mg, BID, taken orally within half an hour after breakfast and dinner.

20 mg, BID, taken orally within half an hour before breakfast and dinner.

DRUGClarithromycin placebo tablets

BID, taken orally within half an hour after breakfast and dinner.

DRUGBismuth potassium citrate placebo capsules

BID, taken orally within half an hour before breakfast and dinner.

500 mg, BID, taken orally within half an hour after breakfast and dinner.

240 mg, BID, taken orally within half an hour before breakfast and dinner.

DRUGRifasutenizol placebo capsules

BID, taken orally within half an hour before breakfast and dinner.

Sponsors

TenNor Therapeutics (Suzhou) Limited
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Voluntarily sign the informed consent form. * Age 18-65 years (inclusive), male or female. * The result of 13C-UBT is positive (≥ 4 Delta Over Baseline), and the infection of H. pylori are confirmed by gastroscopic biopsy histology. * Subjects agree to refrain from taking any antibiotics or traditional Chinese medicines with antibacterial effect, bismuth, and antacids (such as proton pump inhibitor, H2 receptor blocker, P-CAB) other than the study drugs during the Screening Period until the end of the study (Visit 5, i.e., Efficacy Evaluation Visit). * Subjects and their heterosexual partners must agree to have no pregnancy plan and voluntarily take effective contraceptive measures during the trial and for at least 6 months after the end of the study medication. * Willing to follow and able to complete all trial procedures.

Exclusion criteria

* Allergy to any of the study drugs (rabeprazole, amoxicillin, clarithromycin, bismuth potassium citrate), allergic constitution (multiple drug and food allergies); or any contraindication to the use of rifamycin, nitroimidazoles or study drugs. * History of H. pylori eradication therapy (including participation in other clinical trials for H. pylori eradication). * Subjects with confirmed tuberculosis (TB) or Mycobacterium avium complex (MAC) infection or a history of TB or MAC infection. * History of dysphagia or any gastrointestinal disorder affecting drug absorption. * History of obstruction pyloric; or excessive gastric acid secretion (such as Zollinger-Ellison syndrome). * History of gastric cancer. * History of neoplasm malignant within 5 years prior to screening, with the exception of basal cell carcinoma or carcinoma cervix in situ treated without evidence of recurrence. * History of esophageal or gastric surgery, except for simple repair of the perforated ulcer. * History of substance abuse or drug use within 5 years prior to screening. * Alcohol abuse or a history of alcohol abuse within 5 years prior to screening (average weekly consumption of ≥ 14 units of alcohol: 1 unit = 285 mL of beer, or 25 mL of spirits, or 100 mL of wine/Chinese rice wine/rice wine); * Presence of active gastric and/or duodenal ulcer. * Anticoagulant therapy or long-term treatment with nonsteroidal anti-inflammatory drugs. * Treatment with any other investigational new drugs within 4 weeks prior to the Screening Period. * Any prohibited medications or non-drug therapies as specified in the protocol (see Section 10.3). * White blood cell count or neutrophil count below the lower limit of normal range. * Anemia (hemoglobin \< 90 g/L). * Aspartate aminotransferase (AST), alanine aminotransferase (ALT), total bilirubin, or serum creatinine above the upper limit of normal range. * Test positive for hepatitis B surface antigen, hepatitis C antibody, AIDS antibody, or microspironema pallidum antibody. * Abnormal ECG with clinical significance. * Female subjects who are pregnant, lactating, or have a positive urine pregnancy result during the Screening Period. * Inability to communicate with the Investigator and to comply with the study requirements. * Other conditions considered inappropriate to participate in this study by the Investigator, e.g., the subject has a history of severe central nervous system, cardiovascular, pulmonary, hepatic, renal, metabolic, gastrointestinal, urological, endocrine, or hematological diseases, or has clinical manifestations of these diseases.

Design outcomes

Primary

MeasureTime frameDescription
Eradication Rate of H.Pylori Infection4 to 6 weeks after the last dose of the study drugsThe eradication rate of H. pylori is defined as the percentage of participants with negative results of 13C UBT.

Secondary

MeasureTime frameDescription
Safety by Assessment of the Number of Participants With Adverse Events (AEs)up to 4-6 weeks after the last dose of the study drugsAn Adverse Event (AE) is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An Adverse Event can therefore be any unfavorable and unintended sign (including abnormal laboratory values or abnormal clinical test results), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as Adverse Events.
Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Rifasutenizol (TNP-2198) on Day 1Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, and 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma pharmacokinetic (PK) parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Rifasutenizol (TNP-2198) on Day 14Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Maximum Observed Plasma Concentration (Cmax) of Rifasutenizol (TNP-2198) on Day 1Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Maximum Observed Plasma Concentration (Cmax) of Rifasutenizol (TNP-2198) on Day 14Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Half Life (t1/2) of Rifasutenizol (TNP-2198) on Day 1Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Half Life (t1/2) of Rifasutenizol (TNP-2198) on Day 14Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Eradication Rate of Antibiotic-resistant Strains of H.Pylori4 to 6 weeks after the last dose of the study drugsPercentage of Participants with Successful Helicobacter Pylori (H.pylori) Eradication in Participants with antibiotic-resistant Strains of H.pylori at Baseline (based on the test results of 13C UBT)
Area Under the Plasma Concentration-time Curve Within a Dosing Interval (AUC0-tau) of Rifasutenizol (TNP-2198) on Day 14Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Area Under the Plasma Concentration-time Curve From the Time of Administration Extrapolated to Infinity (AUC0-∞) of Rifasutenizol (TNP-2198) on Day 1Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Area Under the Plasma Concentration-time Curve From the Time of Administration Extrapolated to Infinity (AUC0-∞) of Rifasutenizol (TNP-2198) on Day 14Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Volume of Distribution (Vd/F) of Rifasutenizol (TNP-2198) on Day 1Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Volume of Distribution (Vd/F) of Rifasutenizol (TNP-2198) on Day 14Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Clearance (CL/F) of Rifasutenizol (TNP-2198) on Day 1Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Clearance (CL/F) of Rifasutenizol (TNP-2198) on Day 14Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.
Area Under the Plasma Concentration-time Curve Within a Dosing Interval (AUC0-tau) of Rifasutenizol (TNP-2198) on Day 1Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administrationPlasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Countries

China

Participant flow

Participants by arm

ArmCount
Test Group
Rifasutenizol capsules 400 mg + Rabeprazole sodium enteric-coated tablets 20 mg + Amoxicillin capsules 1 g + Bismuth potassium citrate placebo capsules + Clarithromycin placebo tablets, BID for 14 days
353
Control Group
Amoxicillin capsules 1 g + Clarithromycin tablets 500 mg + Rabeprazole sodium enteric-coated tablets 20 mg + Bismuth potassium citrate capsules 240 mg + Rifasutenizol placebo capsules, BID for 14 days
347
Total700

Baseline characteristics

CharacteristicTest GroupControl GroupTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
353 Participants347 Participants700 Participants
Age, Continuous39.2 years
STANDARD_DEVIATION 11.68
39.5 years
STANDARD_DEVIATION 11.18
39.4 years
STANDARD_DEVIATION 11.43
Participants with H. pylori infection353 Participants347 Participants700 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
353 Participants347 Participants700 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants
Region of Enrollment
China
353 participants347 participants700 participants
Sex: Female, Male
Female
220 Participants219 Participants439 Participants
Sex: Female, Male
Male
133 Participants128 Participants261 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 3510 / 346
other
Total, other adverse events
65 / 351143 / 346
serious
Total, serious adverse events
2 / 3512 / 346

Outcome results

Primary

Eradication Rate of H.Pylori Infection

The eradication rate of H. pylori is defined as the percentage of participants with negative results of 13C UBT.

Time frame: 4 to 6 weeks after the last dose of the study drugs

Population: All the participants who have been randomized into groups and received at least one dose of study drugs.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Test GroupEradication Rate of H.Pylori Infection323 Participants
Control GroupEradication Rate of H.Pylori Infection304 Participants
Secondary

Area Under the Plasma Concentration-time Curve From the Time of Administration Extrapolated to Infinity (AUC0-∞) of Rifasutenizol (TNP-2198) on Day 1

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupArea Under the Plasma Concentration-time Curve From the Time of Administration Extrapolated to Infinity (AUC0-∞) of Rifasutenizol (TNP-2198) on Day 11240 h*ng/mLStandard Deviation 548
Secondary

Area Under the Plasma Concentration-time Curve From the Time of Administration Extrapolated to Infinity (AUC0-∞) of Rifasutenizol (TNP-2198) on Day 14

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic

ArmMeasureValue (MEAN)Dispersion
Test GroupArea Under the Plasma Concentration-time Curve From the Time of Administration Extrapolated to Infinity (AUC0-∞) of Rifasutenizol (TNP-2198) on Day 142160 h*ng/mLStandard Deviation 819
Secondary

Area Under the Plasma Concentration-time Curve Within a Dosing Interval (AUC0-tau) of Rifasutenizol (TNP-2198) on Day 1

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupArea Under the Plasma Concentration-time Curve Within a Dosing Interval (AUC0-tau) of Rifasutenizol (TNP-2198) on Day 11160 h*ng/mLStandard Deviation 507
Secondary

Area Under the Plasma Concentration-time Curve Within a Dosing Interval (AUC0-tau) of Rifasutenizol (TNP-2198) on Day 14

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupArea Under the Plasma Concentration-time Curve Within a Dosing Interval (AUC0-tau) of Rifasutenizol (TNP-2198) on Day 141950 h*ng/mLStandard Deviation 737
Secondary

Clearance (CL/F) of Rifasutenizol (TNP-2198) on Day 1

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupClearance (CL/F) of Rifasutenizol (TNP-2198) on Day 1425000 mL/hStandard Deviation 298000
Secondary

Clearance (CL/F) of Rifasutenizol (TNP-2198) on Day 14

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupClearance (CL/F) of Rifasutenizol (TNP-2198) on Day 14252000 mL/hStandard Deviation 172000
Secondary

Eradication Rate of Antibiotic-resistant Strains of H.Pylori

Percentage of Participants with Successful Helicobacter Pylori (H.pylori) Eradication in Participants with antibiotic-resistant Strains of H.pylori at Baseline (based on the test results of 13C UBT)

Time frame: 4 to 6 weeks after the last dose of the study drugs

Population: Participants who have been randomized into groups and received at least one dose of study drugs.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriMetronidazole susceptible92 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriLevofloxacin resistant93 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriMetronidazole resistant168 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriLevofloxacin susceptible167 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriAmoxicillin resistant19 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriClarithromycin & Amoxicillin resistant12 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriClarithromycin susceptible169 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriDR (drug-resistant) defined as resistant to at least one class antibiotics for H. pylori infection221 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriAmoxicillin susceptible242 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriMDR (multidrug-resistant) resistant to at least two classes of antibiotics for H. pylori infection107 Participants
Test GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriClarithromycin resistant92 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriMDR (multidrug-resistant) resistant to at least two classes of antibiotics for H. pylori infection121 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriClarithromycin resistant105 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriClarithromycin susceptible154 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriMetronidazole resistant182 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriMetronidazole susceptible77 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriAmoxicillin resistant24 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriAmoxicillin susceptible235 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriLevofloxacin resistant85 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriLevofloxacin susceptible174 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriClarithromycin & Amoxicillin resistant16 Participants
Control GroupEradication Rate of Antibiotic-resistant Strains of H.PyloriDR (drug-resistant) defined as resistant to at least one class antibiotics for H. pylori infection218 Participants
Secondary

Half Life (t1/2) of Rifasutenizol (TNP-2198) on Day 1

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEDIAN)
Test GroupHalf Life (t1/2) of Rifasutenizol (TNP-2198) on Day 13.25 h
Secondary

Half Life (t1/2) of Rifasutenizol (TNP-2198) on Day 14

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEDIAN)
Test GroupHalf Life (t1/2) of Rifasutenizol (TNP-2198) on Day 143.05 h
Secondary

Maximum Observed Plasma Concentration (Cmax) of Rifasutenizol (TNP-2198) on Day 1

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupMaximum Observed Plasma Concentration (Cmax) of Rifasutenizol (TNP-2198) on Day 1324 ng/mLStandard Deviation 145
Secondary

Maximum Observed Plasma Concentration (Cmax) of Rifasutenizol (TNP-2198) on Day 14

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupMaximum Observed Plasma Concentration (Cmax) of Rifasutenizol (TNP-2198) on Day 14504 ng/mLStandard Deviation 187
Secondary

Safety by Assessment of the Number of Participants With Adverse Events (AEs)

An Adverse Event (AE) is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An Adverse Event can therefore be any unfavorable and unintended sign (including abnormal laboratory values or abnormal clinical test results), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as Adverse Events.

Time frame: up to 4-6 weeks after the last dose of the study drugs

Population: All the participants who have been randomized into groups and received at least one dose of study drugs.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Test GroupSafety by Assessment of the Number of Participants With Adverse Events (AEs)131 Participants
Control GroupSafety by Assessment of the Number of Participants With Adverse Events (AEs)184 Participants
Secondary

Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Rifasutenizol (TNP-2198) on Day 1

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma pharmacokinetic (PK) parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, and 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEDIAN)
Test GroupTime to Reach the Maximum Observed Plasma Concentration (Tmax) of Rifasutenizol (TNP-2198) on Day 14.08 h
Secondary

Time to Reach the Maximum Observed Plasma Concentration (Tmax) of Rifasutenizol (TNP-2198) on Day 14

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEDIAN)
Test GroupTime to Reach the Maximum Observed Plasma Concentration (Tmax) of Rifasutenizol (TNP-2198) on Day 144.58 h
Secondary

Volume of Distribution (Vd/F) of Rifasutenizol (TNP-2198) on Day 1

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 1: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupVolume of Distribution (Vd/F) of Rifasutenizol (TNP-2198) on Day 12010000 mLStandard Deviation 1200000
Secondary

Volume of Distribution (Vd/F) of Rifasutenizol (TNP-2198) on Day 14

Plasma concentrations of Rifasutenizol (TNP-2198) were measured by a specific and validated assay. Plasma PK parameters of Rifasutenizol (TNP-2198) were read directly from the plasma concentration versus time profiles or calculated by using standard non-compartmental methods.

Time frame: Day 14: 30 minutes before and 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 hours after Rifasutenizol (TNP-2198) administration

Population: All randomized participants who have received Rifasutenizol (TNP-2198) and have at least one pharmacokinetic parameter data.

ArmMeasureValue (MEAN)Dispersion
Test GroupVolume of Distribution (Vd/F) of Rifasutenizol (TNP-2198) on Day 141310000 mLStandard Deviation 982000

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026