PMID- 26089641 OWN - NLM STAT- MEDLINE DCOM- 20160215 LR - 20181203 IS - 1177-8881 (Electronic) IS - 1177-8881 (Linking) VI - 9 DP - 2015 TI - Dose proportionality and pharmacokinetics of carvedilol sustained-release formulation: a single dose-ascending 10-sequence incomplete block study. PG - 2911-8 LID - 10.2147/DDDT.S86168 [doi] AB - BACKGROUND: Carvedilol is a third-generation beta-blocker indicated for congestive heart failure and high blood pressure. The aim of this study was to investigate the dose proportionality of the carvedilol sustained-release (SR) formulation in healthy male subjects. METHODS: An open-label, single dose-ascending, 10-sequence, 3-period balanced incomplete block study was performed using healthy male subjects. In varying sequences, each subject received three of five carvedilol SR formulations (8, 16, 32, 64, or 128 mg once). The treatment periods were separated by a washout period of 7 days. Serial blood samples were collected up to 48 h after dosing. The plasma concentrations of carvedilol were determined by using validated liquid chromatography-tandem mass spectrometry. Pharmacokinetic parameters including the area under the plasma concentration-time curve (AUC) from time 0 to the last measurable time (AUClast), AUC extrapolated to infinity (AUCinf), and the measured peak plasma concentration (C max) were obtained by noncompartmental analysis. Dose proportionality was evaluated if the ln-ln plots of AUClast, AUCinf, and C max versus dose were linear and the 90% confidence intervals (CIs) of the slopes were within 0.9195 and 1.0805. Tolerability was assessed by vital signs, electrocardiogram, clinical laboratory tests, and monitoring of adverse events (AEs) throughout the study. RESULTS: A total of 31 subjects were enrolled, and 30 completed the study. The assessment of dose proportionality meets the statistical criteria; the point estimates of slope were 1.0104 (90% CI: 0.9849-1.0359) for AUClast, 1.0003 (90% CI: 0.9748-1.0258) for AUCinf, and 0.9901 (90% CI: 0.9524-1.0277) for C max, respectively. All AEs were mild, and none of the subjects dropped out due to AEs. CONCLUSION: In this study, exposure to carvedilol was proportional over the therapeutic dose range of 8-128 mg. The carvedilol SR formulation was well tolerated. FAU - Kim, Yo Han AU - Kim YH AD - Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea. FAU - Choi, Hee Youn AU - Choi HY AD - Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea. FAU - Noh, Yook-Hwan AU - Noh YH AD - Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea. FAU - Lee, Shi Hyang AU - Lee SH AD - Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea. FAU - Lim, Hyeong-Seok AU - Lim HS AD - Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea. FAU - Kim, Chin AU - Kim C AD - Chong Kun Dang Clinical Research and Clinical Epidemiology and Medical Information, CKD Pharmaceuticals, Seoul, Republic of Korea. FAU - Bae, Kyun-Seop AU - Bae KS AD - Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20150608 PL - New Zealand TA - Drug Des Devel Ther JT - Drug design, development and therapy JID - 101475745 RN - 0 (Adrenergic beta-Antagonists) RN - 0 (Carbazoles) RN - 0 (Delayed-Action Preparations) RN - 0 (Propanolamines) RN - 0K47UL67F2 (Carvedilol) SB - IM MH - Adrenergic beta-Antagonists/administration & dosage/adverse effects/*pharmacokinetics MH - Adult MH - Area Under Curve MH - Carbazoles/administration & dosage/adverse effects/*pharmacokinetics MH - Carvedilol MH - Chromatography, High Pressure Liquid/methods MH - Delayed-Action Preparations MH - Dose-Response Relationship, Drug MH - Humans MH - Male MH - Propanolamines/administration & dosage/adverse effects/*pharmacokinetics MH - Tandem Mass Spectrometry MH - Young Adult PMC - PMC4468955 OTO - NOTNLM OT - carvedilol OT - dose linearity OT - healthy subjects OT - sustained release EDAT- 2015/06/20 06:00 MHDA- 2016/02/16 06:00 PMCR- 2015/06/08 CRDT- 2015/06/20 06:00 PHST- 2015/06/20 06:00 [entrez] PHST- 2015/06/20 06:00 [pubmed] PHST- 2016/02/16 06:00 [medline] PHST- 2015/06/08 00:00 [pmc-release] AID - dddt-9-2911 [pii] AID - 10.2147/DDDT.S86168 [doi] PST - epublish SO - Drug Des Devel Ther. 2015 Jun 8;9:2911-8. doi: 10.2147/DDDT.S86168. eCollection 2015.