Clinical trial NCT06552624: Comparative Pharmacodynamics and Pharmacodynamics Equivalence of Antareit 800 mg Chewable Tablets and Riopan 800 mg Chewable Tablets in Healthy Volunteers
Official title: An Open-label, Randomized, Crossover Study to Investigate the Comparative Pharmacodynamics and Pharmacodynamics Equivalence of Antareit 800 Chewable Tablets and Riopan 800 mg Chewable Tablets in Healthy Volunteers
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Heartburn
Acid-dependent Diseases of the Gastrointestinal Tract
Symptomatic Treatment of Gastric and Duodenal Ulcers
Lead sponsor: Valenta Pharm JSC
Sponsor class: INDUSTRY
First posted: 2024-08-14
Enrollment: 40
Sex: ALL
Minimum age (years): 18
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: OTHER

Brief summary: Comparative study of the pharmacodynamic parameters and pharmacodynamic equivalence (bioequivalence) of drug Antareit 800 mg chewable tablets and drug Riopan 800 mg chewable tablets in healthy volunteers.


Eligibility criteria: Inclusion Criteria:

1. Voluntary and handwritten informed consent form signed by a healthy volunteer to participate in the study prior to any of the study procedures;
2. Healthy male and female caucasian volunteers aged 18 to 45 years (inclusive);
3. Verified diagnosis "healthy" (without abnormal findings in the protocol-defined clinical, laboratory, and instrumental test data);
4. pH according to hourly pH-metry in the screening period, carried out at least 3 hours after the last meal, is completely in the range from 1 to 3 inclusive throughout the entire astronomical hour of measurement;
5. Blood pressure (BP) levels: 100 to 139 mm Hg, inclusive (systolic, SBP), 60 to 89 mm Hg, inclusive (diastolic, DBP);
6. Heart rate (HR) of 60 to 90 bpm, inclusive;
7. Body mass index (BMI) of 18.5 kg/m2 ≤ BMI ≤ 30 kg/m2, where the body weight range is ≥ 55 kg for men and ≥ 45 kg for women;
8. Non-smoking healthy volunteers (who have never smoked or gave up smoking more than 6 months prior to the Screening);
9. Consent to use adequate methods of contraception throughout the study and for 30 days after completion; for women of preserved reproductive potential, a negative urine pregnancy test result;
10. The volunteers must have adequate behavior and coherent speech.

Exclusion Criteria:

1. A history of allergy;
2. History of drug intolerance to the active substance and/or excipients included in the study drugs;
3. History of drug intolerance of or hypersensitivity/allergic reactions to lidocaine, xylocaine or other topical anesthetics which will be used at the trial site for anesthesia during esophagogastroduodenoscopy (EGD) and insertion of the probe for the pH measurements;
4. Chronic diseases of the circulatory, lymphatic, respiratory, nervous, endocrine, gastrointestinal, musculoskeletal, integumentary, immune, urogenital, and hematopoietic systems;
5. Esophageal, gastric, and/or duodenal diseases based on EGD performed at screening and based on the medical history; a history of esophageal, gastric, and/or duodenal surgery;
6. Diseases/conditions which, in the opinion of the investigator, may affect the pH measurement results;
7. Acute infectious diseases less than 4 weeks prior to screening;
8. Use of antacids (including sodium bicarbonate solution)/H2 antagonists 24 h prior to the Screening Visit;
9. Use of proton pump inhibitors 72 h prior to the Screening Visit;
10. Use of (including use of a single dose) steroids and/or other ulcerogenic drug (e.g., nonsteriodal anti-inflammatory drugs \[NSAID\]) less than 4 weeks prior to the Screening Visit;
11. Regular use of any medicinal products, including prescription only and OTC (Over-the-counter) drugs and dietary supplements within 2 weeks prior to the Screening Visit;
12. Blood or plasma donation less than 3 months prior to the Screening Visit;
13. Use of hormonal contraceptives (in women) less than 2 months prior to the Screening Visit;
14. Pregnancy or breastfeeding; a positive pregnancy test for women of childbearing potential;
15. Participation in another clinical trial less than 3 months prior to screening or simultaneously with this study;
16. Use of more than 10 units of alcohol (1 unit of alcohol is equivalent to 330 ml of beer, 150 ml of wine or 40 ml of spirits) a week within a month prior to the enrollment in the study or history data of alcohol/drug dependence or drug abuse.
17. Positive antibody blood test for HIV-1 and HIV-2, Treponema pallidum antigen, hepatitis B surface antigen (HBsAg), or hepatitis C virus antigen;
18. Positive urine test for narcotic substances or strong drugs;
19. Positive test for alcohol vapor in exhaled breath or a positive alcohol saliva test;
20. Deviated septum/nasal obstruction preventing the placement of the pH probe;
21. Medical history of chronic constipation;
22. Medical history of severe maxillofacial injuries;
23. Expected admission to hospital during this study for any reason, except for hospitalization provided for by this protocol;
24. Impossibility or failure to comply with the protocol, undergo protocol-defined procedures, or adhere to the diet or activity regime;
25. Other circumstances which in the opinion of the investigator prevent a volunteer from being included in the study or may result in premature drop-out from the study.

Withdrawal criteria:

1. The volunteer's refusal to further participate in the study;
2. Failure of the volunteer to comply with the rules of participation in the study (skipping study procedures, independent use of drugs prohibited in the study, violation of dietary and lifestyle restrictions, etc.);
3. Taking prohibited therapy;
4. Occurrence of causes/occurrence during the study of situations that threaten the safety of the volunteer, including severe AEs;
5. Volunteers selected to participate in the study in violation of the inclusion/non-inclusion criteria;
6. Violation of the rules for conducting pH measurements or the occurrence of conditions that required early termination of pH measurements (vomiting, nosebleeds, etc.);
7. Missing a dose of the study drug/comparator drug during any period of the study for any reason;
8. Positive urine test for narcotics and strong drugs;
9. Positive breath alcohol vapor test or alcohol in saliva;
10. Positive pregnancy test in women;
11. The occurrence in the course of the study of other reasons that prevent the study according to the protocol.

Primary outcomes:
measure: Pharmacodynamics - AUCpH - Area under the curve potential of hydrogen above the baseline
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
Secondary outcomes:
measure: Pharmacodynamics - time percentage during which the intragastric pH value will exceed 4.0
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
measure: Pharmacodynamics - рН maximum
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
measure: Pharmacodynamics - рН minimum
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
measure: Pharmacodynamics - average pH value
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
measure: Pharmacodynamics - time percentage during which the intragastric pH value will exceed 3.0
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
measure: Pharmacodynamics - median time when the pH was above 3.0
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
measure: Pharmacodynamics - median time when the pH was above 4.0
timeFrame: From 0 to 1 hour (Day 1 and Day 8)
measure: Safety and Tolerability: adverse event (AE) number and frequency
timeFrame: From the screening (and signing informed consent form) to Day 15 of the study or to an early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: serious adverse event (SAE) number and frequency
timeFrame: From the screening (and signing informed consent form) to Day 15 of the study or to an early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: volunteer complaints
timeFrame: From the screening (and signing informed consent form) to Day 15 of the study or to an early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - cardiovascular system
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - respiratory system
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - digestive tract
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - endocrine system
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - musculoskeletal system
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - nervous system
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - sensory systems
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: physical examination results - skin/visible mucous membranes
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: vital signs - systolic blood pressure
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: vital signs - diastolic blood pressure
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: vital signs - heart rate
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: vital signs - body temperature (Celsius temperature scale)
timeFrame: Screening, from Day 0 to Day 2, from Day 7 to Day 9, and/or on early termination visit within the time frame of the study (from Day 0 to Day 15)
measure: Safety and Tolerability: 12-lead electrocardiogram (ECG) - heart rate
timeFrame: Screening, Day 9
measure: Safety and Tolerability: 12-lead electrocardiogram (ECG) - PQ interval
timeFrame: Screening, Day 9
measure: Safety and Tolerability: 12-lead electrocardiogram (ECG) - QRS complex
timeFrame: Screening, Day 9
measure: Safety and Tolerability: 12-lead electrocardiogram (ECG) - corrected QT interval
timeFrame: Screening, Day 9
measure: Safety and Tolerability: clinical blood test - hemoglobin
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - hematocrit
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - red blood cell count
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - platelet count
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - leukocyte count
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - erythrocyte sedimentation rate
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - myelocytes
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - band neutrophils
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - segmented neutrophils
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - eosinophils
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - basophils
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - monocytes
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: clinical blood test - lymphocytes
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - glucose
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - cholesterol
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - protein
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - bilirubin
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - creatinine
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - alkaline phosphatase
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - alanine transaminase
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: blood chemistry - aspartate transaminase
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - specific gravity
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - color
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - transparency
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - pH
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - protein
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - glucose
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - red blood cells
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - white blood cells
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - epithelial cells
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - casts
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - mucus
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis - bacteria
timeFrame: Screening, Day 2, Day 9
measure: Safety and Tolerability: urinalysis (microscopy)
timeFrame: Screening, Day 2, Day 9
Other outcomes:
Locations:
city: Moscow
country: Russian Federation
facility: Llc "Certa Clinic"
city: Saint Petersburg
country: Russian Federation
facility: Private Health Care Institution "Clinical Hospital "RZD-Medicine" of St. Petersburg
city: Saint Petersburg
country: Russian Federation
facility: Limited Liability Company "Research Center Eco-Safety"
Study officials:
References: