PMID- 34103898 OWN - NLM STAT- MEDLINE DCOM- 20211129 LR - 20221207 IS - 1177-8881 (Electronic) IS - 1177-8881 (Linking) VI - 15 DP - 2021 TI - Pharmacokinetics, Tolerability and Pharmacogenetics of DA-8031 After Multiple Ascending Doses in Healthy Male Subjects. PG - 2375-2384 LID - 10.2147/DDDT.S309763 [doi] AB - PURPOSE: DA-8031 is a novel selective serotonin reuptake inhibitor for the treatment of premature ejaculation. This study investigated the pharmacokinetics, safety and tolerability of multiple oral doses of DA-8031. In addition, a genetic analysis was explored to evaluate the effect of genetic polymorphisms on the pharmacokinetics of DA-8031. SUBJECTS AND METHODS: A dose block-randomized, double-blind, placebo-controlled study was conducted in 3 dose groups with 20, 30 and 40 mg of DA-8031. Healthy male subjects were randomized to DA-8031 or placebo at a 4:1 ratio in each dose group of 10 subjects by oral administration once daily for 7 consecutive days. Serial blood and urine samples were collected for the pharmacokinetic evaluation, and the pharmacokinetic-related genes were analyzed by DMET(TM) plus. A safety evaluation was conducted including adverse events (AEs) monitoring and 12-lead electrocardiogram (ECG). RESULTS: The plasma DA-8031 concentration reached the maximum concentration (C(max)) in 2.2 to 3.0 h and was eliminated with a mean half-life of 25.5 to 26.7 h at steady state. The accumulation index of DA-8031 ranged 2.3 to 2.8. The systemic exposure of DA-8031 of the CYP2D6 intermediate metabolizer (IM) was significantly higher compared to the CYP2D6 poor metabolizer (PM). There were no clinically significant QTc interval changes, and all the adverse events were mild. CONCLUSION: After multiple oral doses of DA-8031 20, 30, and 40 mg in this study, the systemic exposure of DA-8031 increased in a more than dose-proportional manner with the increasing doses, and DA-8031 was generally well tolerated. In addition, the genetic polymorphisms of CYP2D6 have an impact on the pharmacokinetics of DA-8031. CI - (c) 2021 Hwang et al. FAU - Hwang, Sejung AU - Hwang S AUID- ORCID: 0000-0003-0154-5777 AD - Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Republic of Korea. FAU - Lee, Dae Young AU - Lee DY AD - Drug Metabolism and Pharmacokinetics (DMPK), Drug Evaluation, Dong-A ST Research Institute, Gyonggi-do, Republic of Korea. FAU - Cho, Joo-Youn AU - Cho JY AUID- ORCID: 0000-0001-9270-8273 AD - Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Republic of Korea. AD - Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Chung, Jae-Yong AU - Chung JY AD - Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Bundang Hospital, Seongnam, Republic of Korea. FAU - Jang, In-Jin AU - Jang IJ AUID- ORCID: 0000-0002-8384-3139 AD - Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Republic of Korea. FAU - Yu, Kyung-Sang AU - Yu KS AUID- ORCID: 0000-0003-0921-7225 AD - Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Republic of Korea. AD - Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Lee, SeungHwan AU - Lee S AUID- ORCID: 0000-0002-1713-9194 AD - Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Republic of Korea. LA - eng PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial DEP - 20210601 PL - New Zealand TA - Drug Des Devel Ther JT - Drug design, development and therapy JID - 101475745 RN - 0 (Benzofurans) RN - 0 (DA 8031) RN - 0 (Serotonin Uptake Inhibitors) RN - EC 1.14.14.1 (Cytochrome P-450 CYP2D6) SB - IM MH - Administration, Oral MH - Adult MH - Benzofurans/administration & dosage/blood/*pharmacokinetics MH - Cytochrome P-450 CYP2D6/genetics MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Drug Tolerance MH - Healthy Volunteers MH - Humans MH - Male MH - Middle Aged MH - Polymorphism, Genetic/drug effects/genetics MH - Selective Serotonin Reuptake Inhibitors/administration & dosage/blood/*pharmacokinetics MH - Young Adult PMC - PMC8179755 OTO - NOTNLM OT - clinical pharmacology OT - pharmacogenomics OT - phase 1 study OT - selective serotonin reuptake inhibitors COIS- All authors report no conflicts of interest regarding the publication of this manuscript. EDAT- 2021/06/10 06:00 MHDA- 2021/11/30 06:00 PMCR- 2021/06/01 CRDT- 2021/06/09 06:40 PHST- 2021/03/08 00:00 [received] PHST- 2021/04/22 00:00 [accepted] PHST- 2021/06/09 06:40 [entrez] PHST- 2021/06/10 06:00 [pubmed] PHST- 2021/11/30 06:00 [medline] PHST- 2021/06/01 00:00 [pmc-release] AID - 309763 [pii] AID - 10.2147/DDDT.S309763 [doi] PST - epublish SO - Drug Des Devel Ther. 2021 Jun 1;15:2375-2384. doi: 10.2147/DDDT.S309763. eCollection 2021.