PMID- 34647404 OWN - NLM STAT- MEDLINE DCOM- 20220331 LR - 20221207 IS - 1463-1326 (Electronic) IS - 1462-8902 (Print) IS - 1462-8902 (Linking) VI - 24 IP - 2 DP - 2022 Feb TI - A phase 1 multiple-ascending dose study of tirzepatide in Japanese participants with type 2 diabetes. PG - 239-246 LID - 10.1111/dom.14572 [doi] AB - AIM: To investigate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of tirzepatide in Japanese participants with type 2 diabetes (T2D). METHODS: This phase 1, double-blind, placebo-controlled, parallel-dose, multiple-ascending dose study randomized participants to once-weekly subcutaneous tirzepatide or placebo. The tirzepatide treatment groups were: 5 mg (5 mg, weeks 1-8), 10 mg (2.5 mg, weeks 1-2; 5 mg, weeks 3-4; 10 mg, weeks 5-8), and 15 mg (5 mg, weeks 1-2; 10 mg, weeks 3-6; 15 mg, weeks 7-8). The primary outcome was tirzepatide safety and tolerability. RESULTS: Forty-eight participants were randomized. The most frequently reported treatment-emergent adverse events (AEs) were decreased appetite and gastrointestinal AEs, which were generally dose-dependent and mild in severity. The plasma tirzepatide concentration half-life was approximately 5 days. After 8 weeks of treatment, fasting plasma glucose decreased from baseline with tirzepatide versus placebo; the least squares (LS) mean decrease compared with placebo (95% confidence interval [CI]) was 52.7 (35.9-69.6), 69.1 (52.3-85.9), and 68.9 (53.2-84.6) mg/dL in the 5-, 10-, and 15-mg treatment groups, respectively (P < .0001 for all treatment groups). Tirzepatide also resulted in LS mean decreases from baseline versus placebo at 8 weeks in HbA1c up to 1.6% (95% CI 1.2%-1.9%; P < .0001 for all treatment groups) and body weight up to 6.6 kg (95% CI 5.3-7.9; P < .0001 for all treatment groups). CONCLUSIONS: All tirzepatide doses were well tolerated. The safety, tolerability, PK, and PD profiles of tirzepatide support further evaluation of once-weekly dosing in Japanese people with T2D. CI - (c) 2021 The Authors. Diabetes, Obesity and Metabolism published by John Wiley & Sons Ltd. FAU - Furihata, Kenichi AU - Furihata K AD - P-One Clinic, Tokyo, Japan. FAU - Mimura, Hanaka AU - Mimura H AD - Eli Lilly Japan K. K., Kobe, Japan. FAU - Urva, Shweta AU - Urva S AUID- ORCID: 0000-0002-3681-479X AD - Eli Lilly and Company, Indianapolis, Indiana, USA. FAU - Oura, Tomonori AU - Oura T AUID- ORCID: 0000-0003-0872-8576 AD - Eli Lilly Japan K. K., Kobe, Japan. FAU - Ohwaki, Kenji AU - Ohwaki K AUID- ORCID: 0000-0002-2842-8231 AD - Eli Lilly Japan K. K., Kobe, Japan. FAU - Imaoka, Takeshi AU - Imaoka T AD - Eli Lilly Japan K. K., Kobe, Japan. LA - eng PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20211118 PL - England TA - Diabetes Obes Metab JT - Diabetes, obesity & metabolism JID - 100883645 RN - 0 (Glycated Hemoglobin A) RN - 0 (Hypoglycemic Agents) RN - 59392-49-3 (Gastric Inhibitory Polypeptide) RN - OYN3CCI6QE (tirzepatide) SB - IM MH - *Diabetes Mellitus, Type 2/drug therapy MH - Double-Blind Method MH - Gastric Inhibitory Polypeptide MH - Glycated Hemoglobin/analysis MH - Humans MH - Hypoglycemic Agents/adverse effects MH - Japan PMC - PMC9299227 OTO - NOTNLM OT - GIP OT - GLP-1 OT - antidiabetic drug OT - phase I-II study COIS- KF has received consulting fees from Kissei Pharmaceutical. HM, TO, KO, and TI are full-time employees of Eli Lilly Japan K. K. and own stock in Eli Lilly and Company. SU is a full-time employee of Eli Lilly and Company, Indianapolis, Indiana, and owns stock in Eli Lilly and Company. EDAT- 2021/10/15 06:00 MHDA- 2022/04/01 06:00 PMCR- 2022/07/20 CRDT- 2021/10/14 06:57 PHST- 2021/09/29 00:00 [revised] PHST- 2021/07/07 00:00 [received] PHST- 2021/10/08 00:00 [accepted] PHST- 2021/10/15 06:00 [pubmed] PHST- 2022/04/01 06:00 [medline] PHST- 2021/10/14 06:57 [entrez] PHST- 2022/07/20 00:00 [pmc-release] AID - DOM14572 [pii] AID - 10.1111/dom.14572 [doi] PST - ppublish SO - Diabetes Obes Metab. 2022 Feb;24(2):239-246. doi: 10.1111/dom.14572. Epub 2021 Nov 18.