Effect of Subcutaneous Tirzepatide vs Placebo Added to Titrated Insulin Glargine on Glycemic Control in Patients With Type 2 Diabetes The SURPASS-5 Randomized Clinical Trial

被引:370
作者
Dahl, Dominik [1 ]
Onishi, Yukiko [2 ]
Norwood, Paul [3 ]
Huh, Ruth [4 ]
Bray, Ross [4 ]
Patel, Hiren [4 ]
Rodriguez, Angel [5 ]
机构
[1] Gemeinschaftspraxis Innere Med & Diabetol, Hamburg, Germany
[2] Asahi Life Fdn, Inst Med Sci, Tokyo, Japan
[3] Valley Endocrine & Res, Fresno, CA USA
[4] Eli Lilly & Co, Indianapolis, IN 46285 USA
[5] Lilly Spain, Ave Ind 30, Madrid 28108, Spain
来源
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION | 2022年 / 327卷 / 06期
关键词
PEPTIDE-1 RECEPTOR AGONIST; THERAPY; EFFICACY; SAFETY;
D O I
10.1001/jama.2022.0078
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
IMPORTANCE The effects of tirzepatide, a dual glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonist, as an addition to insulin glargine for treatment of type 2 diabetes have not been described. OBJECTIVE To assess the efficacy and safety of tirzepatide added to insulin glargine in patients with type 2 diabetes with inadequate glycemic control. DESIGN, SETTING, AND PARTICIPANTS Randomized phase 3 clinical trial conducted at 45 medical research centers and hospitals in 8 countries (enrollment from August 30, 2019, to March 20, 2020; follow-up completed January 13, 2021) in 475 adults with type 2 diabetes and inadequate glycemic control while treated with once-daily insulin glargine with or without metformin. INTERVENTIONS Patients were randomized in a 1:1:1:1 ratio to receive once-weekly subcutaneous injections of 5-mg (n = 116), 10-mg (n = 119), or 15-mg (n = 120) tirzepatide or volume-matched placebo (n = 120) over 40 weeks. Tirzepatide was initiated at 2.5mg/week and escalated by 2.5mg every 4 weeks until the assigned dose was achieved. MAIN OUTCOMES AND MEASURES The primary end pointwas mean change from baseline in glycated hemoglobin A1c (HbA1c) at week 40. The 5 key secondary end points included mean change in body weight and percentage of patients achieving prespecified HbA1c levels. RESULTS Among 475 randomized participants (211 [44%] women; mean [SD] age, 60.6 [9.9] years; mean [SD] HbA1c, 8.31% [0.85%]), 451 (94.9%) completed the trial. Treatment was prematurely discontinued by 10% of participants in the 5-mg tirzepatide group, 12% in the 10-mg tirzepatide group, 18% in the 15-mg tirzepatide group, and 3% in the placebo group. At week 40, mean HbA1c change from baseline was -2.40% with 10-mg tirzepatide and -2.34% with 15-mg tirzepatide vs -0.86% with placebo (10mg: difference vs placebo, -1.53%[97.5% CI, -1.80% to -1.27%]; 15mg: difference vs placebo, -1.47%[97.5% CI, -1.75% to -1.20%]; P<.001 for both). Mean HbA1c change from baseline was -2.11% with 5-mg tirzepatide (difference vs placebo, -1.24%[95% CI, -1.48% to -1.01%]; P<.001]). Mean body weight change from baseline was -5.4 kg with 5-mg tirzepatide, -7.5 kg with 10-mg tirzepatide, -8.8 kg with 15-mg tirzepatide and 1.6 kg with placebo (5mg: difference, -7.1 kg [95% CI, -8.7 to -5.4]; 10mg: difference, -9.1 kg [95% CI, -10.7 to -7.5]; 15mg: difference, -10.5 kg [95% CI, -12.1 to -8.8]; P<.001 for all). Higher percentages of patients treated with tirzepatide vs those treated with placebo had HbA1c less than 7%(85%-90% vs 34%; P<.001 for all). The most common treatment-emergent adverse events in the tirzepatide groups vs placebo group were diarrhea (12%-21% vs 10%) and nausea (13%-18% vs 3%). CONCLUSIONS AND RELEVANCE Among patients with type 2 diabetes and inadequate glycemic control despite treatment with insulin glargine, the addition of subcutaneous tirzepatide, compared with placebo, to titrated insulin glargine resulted in statistically significant improvements in glycemic control after 40 weeks.
引用
收藏
页码:534 / 545
页数:12
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