A Phase 1 Study to Evaluate PK Profile of Multiple Oral Administrations of TNP-2092 Capsules in Healthy Subjects

This study was a single-center, randomized, double-blind, placebo-controlled, dose-ascending multiple-dose-administration study. The aim of this study was to evaluate the safety, tolerability, and pharmacokinetic profile of TNP-2092 Capsules in asymptomatic healthy subjects with Helicobacter pylori infection, and to explore the preliminary efficacy of TNP-2092 Capsules in eradicating Helicobacter pylori.

This study was a single-center, randomized, double-blind, placebo-controlled, dose-ascending multiple-dose-administration study. The aim of this study was to evaluate the safety, tolerability, and pharmacokinetic profile of TNP-2092 Capsules in asymptomatic healthy subjects with Helicobacter pylori infection, and to explore the preliminary efficacy of TNP-2092 Capsules in eradicating Helicobacter pylori.

In this study, three dose groups of 100 mg, 300 mg and 600 mg will be set up. The drug will be taken twice a day for 14 consecutive days, and last dose on the morning of Day 15. Fifteen subjects in each of the 100 mg and 300 mg dose groups will be randomized at a ratio of 4:1, with 12 subjects receiving the investigational product and 3 receiving placebo. Ten subjects in the 600 mg dose group will be randomized at a ratio of 4:1, with 8 subjects receiving the investigational product and 2 subjects receiving placebo.

Eligibility Criteria:
Inclusion Criteria:

* Those who are fully informed of and understand this study and have signed the Informed Consent Form.
* Those who are willing to follow and able to complete all the trial procedures.
* Female subjects of childbearing potential must agree to abstinence or take effective contraceptive measures during the trial and at least 70 days (10 weeks) after administration.
* Male subjects must agree to abstinence or use condoms as a contraceptive measure during the trial and at least 70 days (10 weeks) after administration.
* Sex: male or female.
* Age: 18-45 years, including 18 and 45 years.
* BMI: 19.0-26.0 kg/m2, including 19.0 and 26.0 kg/m2.
* Those who do not smoke, or have smoked less than 5 cigarettes per day within 3 months before screening; those who do not drink alcohol, or have drunk less than 14 units of alcohol per week (1 unit of alcohol = 360 mL of beer or 45 mL of spirits with 40% alcohol content or 150 mL of wine) within 6 months before screening; those who have not smoked or drunk alcohol within 48 hours before admission to the study site.
* Subjects whose clinical laboratory test results are within the normal range or whose test results are abnormal but judged by the investigator to be of no clinical insignificance.
* Those with a positive 14C urea breath test (UBT) result.

Exclusion Criteria:

* Those with an allergic constitution, a history of allergic diseases or a history of drug allergy.
* Those with a history of alcohol or drug abuse in the past 10 years.
* Those who have donated blood within 3 months before enrollment.
* Those with regular use of any prescription/over-the-counter drugs, including vitamins, minerals, nutritional supplements or herbs, within 2 weeks before enrollment and during the study period.
* Those who have taken any drug that changes the activity of liver enzymes 28 days before taking the investigational product or during the study.
* Those who have participated in any clinical trials within 3 months before enrollment.
* Those with a history of eradication of Helicobacter pylori.
* Those who are suffering or have suffered from digestive tract diseases, including digestive tract ulcer, etc.
* Those with symptoms or past medical history of cardiovascular, respiratory, urinary, neurological, blood, immune, endocrine system diseases or tumor, mental illness, or any situation which, in the opinion of the investigator, may threaten the safety of the subjects or affect the correctness of the trial results.
* Those whose blood pressure remains above 140/90 mmHg after retest.
* Pregnant or lactating women.
* Those who are HIV positive, syphilis positive, hepatitis B surface antigen positive, hepatitis C antibody positive.
* Those who have had beverages or foods containing methylxanthine (coffee, tea, coke, chocolate, and energy drinks), grapefruit (fruit juice) and alcohol within 48 hours (2 days) before the clinical study.
* Other circumstances deemed by the investigator to be unsuitable for the subject to participate in this study.