Multiple-dose, Randomized, Open-Label, Fasting, Two-period, Crossover, Bioavailability Study Between Orfiril Long 500 mg Prolonged-Release Minitablets and Ergenyl Chrono 500 mg Prolonged-Release Tablets in Healthy, Male Volunteers.
Multiple-dose, Randomized, Open-Label, Fasting, Two-period, Crossover, Bioavailability Study Between Orfiril Long 500 mg Prolonged-Release Minitablets and Ergenyl Chrono 500 mg Prolonged-Release Tablets in Healthy, Male Volunteers.
Comparative bioavailability of valproate from Orfiril long 500 mg prolonged-release mini-tablets and Ergenyl chrono 500 mg prolonged-release tablets in healthy, male volunteers under fasting conditions.
Pivotal, multiple-dose, randomized, open-label, two-period, two-sequence, two-treatment, single-centre, crossover, study designed to evaluate the comparative bioavailability of valproate for Orfiril long 500 mg prolonged release minitablets and Ergenyl chrono 500 mg prolonged-release tablet once daily for 6 days in healthy male subjects under fasting conditions.
Inclusion Criteria:
Medically acceptable methods of contraception include using a condom with a female partner of child-bearing potential who was using oral contraceptives, hormonal patch, implant or injection, intrauterine device, or diaphragm with spermicide. Abstinence as a method of contraception is acceptable if it was in line with the preferred and usual lifestyle of the study participant.
If a subject's partner became pregnant during his participation in the study and for 60 days after he has completed his last study drug administration, he must have informed BPSI staff immediately.
Exclusion Criteria:
Known history or presence of any clinically significant hepatic, renal/genitourinary, gastrointestinal, cardiovascular, cerebrovascular, pulmonary, endocrine, immunological, musculoskeletal, neurological, psychiatric, dermatological or hematological disease or condition unless determined as not clinically significant by the PI/Sub-Investigator.
2. Clinically significant history or presence of any clinically significant gastrointestinal pathology (e.g., chronic diarrhea, inflammatory bowel disease), unresolved gastrointestinal symptoms (e.g., diarrhea, vomiting), or other conditions known to interfere with the absorption, distribution, metabolism or excretion of the drug experienced within 7 days prior to first study drug administration, as determined by the PI/Sub-Investigator.
3. Estimated creatinine clearance <70 ml/min. 4. Presence of any clinically significant illness within 30 days prior to first dosing, as determined by the PI/Sub-Investigator.
5. Presence of any significant physical or organ abnormality as determined by the PI/Sub-Investigator.
6. A positive test result for any of the following: HIV, Hepatitis B surface antigen, Hepatitis C, drugs of abuse (marijuana, amphetamines, barbiturates, cocaine, opiates, phencyclidine and benzodiazepines), breath alcohol test and cotinine.
7. Known history or presence of:
Alcohol abuse or dependence within one year prior to first study drug administration;
Drug abuse or dependence;
Hypersensitivity or idiosyncratic reaction to Orfiril Long, its excipients, and/or related substances;
Suicidal ideation or suicidal behavior, as assessed by the Columbia Suicide Severity Rating Scale (baseline version) - Appendix B (Refer to Appendix 16.1.1)
Food allergies;
Presence of any dietary restrictions unless deemed by the PI/Sub-I as "Not Clinically Significant".
Family history of hereditary neurometabolic syndromes due to mitochondrial enzyme polymerase;
Family history of liver disease;
Known urea cycle disorder;
Known porphyria;
Coagulation disorder;
Severe allergic reactions (e.g., anaphylactic reactions, angioedema). 8. Intolerance to and/or difficulty with blood sampling through venipuncture. 9. Abnormal diet patterns (for any reason) during the four weeks preceding the study, including fasting, high protein diets etc.
10. Individuals who have donated, in the days prior to first study drug administration:
50-499 mL of blood in the previous 30 days;
500 mL or more in the previous 56 days. 11. Donated plasma by plasmapheresis within 7 days prior to first study drug administration.
12. Individuals who have participated in another clinical trial or who received an investigational drug within 30 days prior to first study drug administration.
13. Use of any enzyme-modifying drugs and/or other products, including strong inhibitors of cytochrome P450 (CYP) enzymes (e.g., cimetidine, fluoxetine, quinidine, erythromycin, ciprofloxacin, fluconazole, ketoconazole, diltiazem and HIV antivirals) and strong inducers of CYP enzymes (e.g., barbiturates, carbamazepine, glucocorticoids, phenytoin, St. John´s Wort, and rifampicin) in the previous 30 days before first study drug administration.
14. Used of any monoamine oxidase (MAO) inhibitors (e.g., phenelzine, tranylcypromine) within 30 days prior to first study drug administration.
15. Used of any prescription medication within 14 days prior to first study drug administration.
16. Used of any over-the-counter medications (including oral multivitamins, herbal and/or dietary supplements) within 14 days prior to first study drug administration.
17. Consumed food or beverages containing grapefruit and/or pomelo within 10 days prior to first study drug administration.
18. Consumed food or beverages containing caffeine/methylxanthines, poppy seeds and/or alcohol within 48 hours before dosing in each study period.
19. Individuals who had undergone any major surgery within 6 months prior to the start of the study, unless deemed otherwise by PI/Sub-Investigator.
20. Difficulty with swallowing whole tablets. 21. Unable or unwilling to provide informed consent. 22. Had a tattoo or body piercing within 30 days prior to first study drug administration.
23. A subject who, in the opinion of the investigator or designee, is considered unsuitable or unlikely to comply with the study protocol for any reason.