Bioequivalence Study of Perindopril Tablets in Healthy Volunteers Under Fasting Conditions

Inclusion Criteria: 1. Healthy european men or women aged between 18 to 45 years 2. Body mass index 18.5-30 kg/m² according to Quetelet's weight-height index 3. Verified diagnosis "healthy" according to the anamnesis data and the results of standard clinical, laboratory and instrumental examination methods, physical examination and anamnestic examination 4. The level of systolic blood pressure (SBP) measured in the sitting position at the time of screening ≥100 mm Hg and ≤ 139 mm Hg and diastolic blood pressure (DBP) ≥ 60 mm Hg or ≤ 90 mm Hg; heart rate more than 60 beats/min and less than 90 beats/min at the time of screening, respiratory rate more than 12 and less than 20 per minute at the time of screening, body temperature above 35.9 ° C and below 36.9 °C at the time of screening 5. Subjects are able to understand the requirements of the study 6. Subjects are able to accept all the restrictions imposed during the course of the study 7. The written consent of the volunteer to be included in the study 8. For female subject: * negative pregnancy test; * adherence to reliable methods of contraception for female of childbearing potential: sexual continence, or condom + spermicide, or diaphragm + spermicide, started at least 14 days before the first dose of the study drug; intrauterine contraception is also a reliable method of contraception, installed at least 4 weeks before taking the study drugs in the first period; * сonsent to use these methods of contraception within 30 days after taking the drug in the second period; * women who do not use acceptable methods of contraception, if they are considered incapable of childbearing, will also be able to participate in the study: women who have undergone a hysterectomy or tubal ligation, women with a clinical diagnosis of infertility, and women who are in menopause (at least a year without menstruation in the absence of alternative pathologies that may cause the cessation of menstruation); * in case of using contraceptives (injectable and oral hormonal contraceptives, subcutaneous hormonal implants or intrauterine hormonal therapeutic systems), the latter should be canceled at least 60 days before taking the drug in the first period; 9. For male: consent to use a double barrier method of contraception (condom + spermicide) or complete sexual abstinence, as well as consent not to participate in sperm donation during the entire study and 30 days after taking the drug in the second period. Exclusion Criteria: 1. hypersensitivity to perindopril or any ACE inhibitors, amlodipine, indapamide or excipients that are part of any of the investigational drugs, or intolerance to these components; 2. burdened allergic history 3. lactose intolerance, lactase deficiency, glucose-galactose malabsorption. 4. acute infectious diseases or allergic diseases that ended less than 4 weeks before taking the drug in the first period; 5. surgical interventions on the gastrointestinal tract, with the exception of appendectomy 6. clinically significant pathologies of the cardiovascular, bronchopulmonary, neuroendocrine systems, as well as diseases of the gastrointestinal tract, liver, kidneys and blood; 7. the value of standard laboratory and instrumental parameters that go beyond the reference values 8. positive test for syphilis, hepatitis B, hepatitis C or HIV at the time of screening; 9. positive test for alcohol in exhaled air at screening 10. positive urine analysis for the content of narcotic and potent substances during screening (opiates, morphine, barbiturates, benzodiazepines, cannabinoids/marijuana) 11. for women - positive pregnancy test at screening 12. adherence to any low-sodium diet within 2 weeks prior to taking the drug in the first study period, or adherence to a special diet (vegetarian, vegan, salt-restricted) 13. intake of more than 10 units alcohol per week (1 unit of alcohol is equivalent to 500 ml of beer, 200 ml of dry wine or 50 ml of spirits ethyl 40%) or history of alcoholism, drug addiction, drug abuse; 14. inability to go without food for at least 12 hours and the inability to take the drug on an empty stomach; 15. donation of plasma or blood (450 ml or more) less than 3 months before taking the drug in the first period; 16. the use of injectable and oral hormonal contraceptives for 60 days before taking the drug in the first period; 17. the use of subcutaneous hormonal implants or intrauterine hormonal therapeutic systems for 6 months before taking the drug in the first period; 18. use of any prescription and OTC drugs less than 2 weeks before the screening 19. use of well-known inducers of liver microsomal enzymes (barbiturates, carbamazepine, phenytoin, glucocorticoids, omeprazole, etc.) inhibitors of liver microsomal enzymes (antidepressants, cimetidine, diltiazem, macrolides, imidazoles, neuroleptics, verapamil, fluoroquinolones, antihistamines), vitamins, herbs and food additives (cat's claw, angelica officinalis, oenothera, pyrethrum, garlic, ginger, ginkgo, red clover, horse chestnut, green tea, ginseng; St. john's wort etc.) less than 30 days before enrollement in the study 20. for women: volunteers with preserved reproductive potential who had unprotected sexual intercourse with an unsterilized male partner within 30 days before the first day of screening; 21. breastfeeding; 22. participation in other clinical trials of drugs less than 3 months before the screening; 23. difficulty with taking blood; 24. smoking 25. volunteers who are unwilling or unable to give up alcohol and excessive physical activity from the first day of screening until the follow-up visit; 26. consumption of caffeine and xanthine-containing drinks and products (tea, coffee, chocolate, cola, etc.), products containing poppy seeds and use of citrus fruits (including grapefruit and grapefruit juice) from the first day of screening until the follow-up visit; 27. intense physical activity or following lifestyle (night work, extreme physical activity) 28. lack of intention of volunteers to comply with the Protocol requirements throughout the course of the study and/or lack, in the opinion of the Investigator, of the volunteers' ability to understand and evaluate the information on this study as part of the informed consent form signing process, in particular regarding the expected risks and possible discomfort; 29. dehydration due to diarrhea, vomiting or other reason within the last 24 hours before taking the drug in the first period of the study; 30. the presence of seizures, epilepsy and any other neurological disorders in the history of volunteers