PMID- 33653620 OWN - NLM STAT- MEDLINE DCOM- 20211025 LR - 20211025 IS - 1879-114X (Electronic) IS - 0149-2918 (Linking) VI - 43 IP - 4 DP - 2021 Apr TI - Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of SPH3127: A Phase I, Randomized, Double-Blind, Placebo-Controlled Trial. PG - 735.e1-735.e14 LID - S0149-2918(21)00052-7 [pii] LID - 10.1016/j.clinthera.2021.01.025 [doi] AB - PURPOSE: To evaluate the pharmacokinetics, pharmacodynamics, safety, and tolerability of single- and multiple-dose SPH3127 in healthy individuals. METHODS: This was a randomized, double-blind, placebo-controlled, Phase I dose-escalation study. FINDINGS: SPH3127 exposure, expressed as C(max), AUC(0-t), and AUC(0-infinity), was proportionally increased with dose for a range of 25-800 mg (single ascending dose [SAD]) and 100-400 mg daily (multiple ascending doses [MADs]). In an SAD, the C(max) values with 25, 50, 100, 200, 400, and 800 mg of SPH3127 were 90.67, 344.50, 523.50, 1239.50, 2445.00, and 5753.33 ng/mL, respectively. The corresponding AUC(0-t) values were 294.48, 843.62, 1109.33, 2858.56, 6697.50, and 13057.83 h x ng/mL. In MADs, after the first dose of SPH3127, the C(max) values with 100, 200, and 400 mg of SPH3127 were 421.50, 969.00, and 2468.33 ng/mL, respectively. The corresponding AUC(0-t) values were 1279.28, 2275.77, and 5934.26 h x ng/mL. At steady state, the C(max) values with 100, 200, and 400 mg of SPH3127 were 514.67, 1419.17, and 2513.33 ng/mL, respectively. The corresponding AUC(0-24) values were 1638.14, 3096.20, and 7577.70 h x ng/mL. The median T(max) range from 0.33 to 1.0 h and the median t(1/2) from 3 to 4 h. In an SAD, when the dose was >100 mg, plasma renin activity inhibition of up to 90% lasted up to 24 h. In MADs, renin activity was continuously inhibited by up to 90% in each group for 24 h after the last administration. Treatment-emergent adverse events (AEs) were reported in 29.2% of individuals receiving the SAD and 33.3% of those receiving MADs. Only mild adverse events occurred. IMPLICATIONS: SPH3127 was well tolerated and had robust and sustained suppression of plasma renin activity. CLINICALTRIALS. GOV IDENTIFIERS: NCT03128138 (SAD study) and NCT03255993 (MAD study). CI - Copyright (c) 2021 Elsevier Inc. All rights reserved. FAU - Jing, Shan AU - Jing S AD - Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China. FAU - Xu, Ranchi AU - Xu R AD - Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China. FAU - Yang, Kexu AU - Yang K AD - Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China. FAU - Liu, Wenfang AU - Liu W AD - Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China. FAU - Zhang, Leduo AU - Zhang L AD - Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China. FAU - Ke, Ying AU - Ke Y AD - Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China. FAU - Xia, Guangxin AU - Xia G AD - Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China. Electronic address: xiagx@sphchina.com. FAU - Lin, Yang AU - Lin Y AD - Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China. Electronic address: icp@anzhengcp.com. LA - eng SI - ClinicalTrials.gov/NCT03128138 SI - ClinicalTrials.gov/NCT03255993 PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20210227 PL - United States TA - Clin Ther JT - Clinical therapeutics JID - 7706726 RN - 0 (Morpholines) RN - 0 (SPH3127) SB - IM MH - Area Under Curve MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Humans MH - *Morpholines/adverse effects/pharmacokinetics OTO - NOTNLM OT - Chinese study participants OT - SPH3127 OT - clinical pharmacology OT - clinical trial OT - direct renin inhibitor COIS- DISCLOSURES The authors have indicated that they have no conflicts of interest regarding the content of this article. EDAT- 2021/03/04 06:00 MHDA- 2021/10/26 06:00 CRDT- 2021/03/03 05:37 PHST- 2020/09/28 00:00 [received] PHST- 2021/01/25 00:00 [revised] PHST- 2021/01/26 00:00 [accepted] PHST- 2021/03/04 06:00 [pubmed] PHST- 2021/10/26 06:00 [medline] PHST- 2021/03/03 05:37 [entrez] AID - S0149-2918(21)00052-7 [pii] AID - 10.1016/j.clinthera.2021.01.025 [doi] PST - ppublish SO - Clin Ther. 2021 Apr;43(4):735.e1-735.e14. doi: 10.1016/j.clinthera.2021.01.025. Epub 2021 Feb 27.