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DOI: 10.1055/s-0045-1807553
Early Weight Loss and Cardiometabolic Parameters in Tirzepatide-Treated Participants in SURMOUNT 1-2
Was early weight reduction associated with greater improvements in cardiometabolic parameters (CPs) in participants treated with tirzepatide (TZP) in SURMOUNT (SM)-1 and SM-2 trials?
Methods: Post hoc analyses included TZP-treated participants with obesity or overweight with≥1 weight related complication in SM-1 (n=1775) and with type 2 diabetes in SM-2 (n=609) categorized as early responders (≥5% weight reduction) or non-early responders (<5% weight reduction) at Week 8. Analyses used the efficacy estimand and assessed variables based on analysis of variance and logistic regression.
Results: In SM-1, early responders (n=1103, 62.1%) had significantly greater improvements in body weight (BW) and CPs from baseline (BL) to Week 72 (W72) vs. non-early responders (n=672, 37.9%): BW (-23.3% vs. -14.6%, p<0.001), systolic blood pressure (SBP) (-9.8 vs. -5.6 mmHg, p<0.001), diastolic blood pressure (DBP) (-6.0 vs. -4.2 mmHg, p<0.001), triglycerides (TGs) (-30.9% vs. -23.0%, p<0.001), HDL (10.0% vs. 3.8%, p<0.001), and ALT (-31.1% vs. -25.1%, p<0.001). In SM-2, early responders (n=247, 40.6%) achieved a greater reduction in HbA1c from BL to W72 compared to non-early responders (n=362, 59.4%) (-2.5% vs. -2.0%, p<0.001), with greater proportions achieving HbA1c<5.7% (69.7% vs. 41.2%). Early responders had significantly greater improvements in CPs from BL to W72 vs. non-early responders: BW (-20.0% vs. -10.8%, p<0.001), SBP (-8.4 vs. -6.2 mmHg, p=0.04), DBP (-3.7 vs. -2.0 mmHg, p=0.012), TGs (-34.5% vs. -23.9%, p<0.001), HDL (13.4% vs. 4.8%, p<0.001) and ALT (-38.7% vs. -28.4%, p<0.001).
Conclusion: In SM-1-2, TZP-treated participants with obesity or overweight achieved significant weight reduction and improved CPs compared to BL, regardless of early weight reduction response category; however, in these post-hoc analyses, early responders achieved greater improvements in CPs compared to non-early responders.
Interessenkonflikt
MM, CL, LN, CM, AR, AS, and AB are employees and shareholders of Eli Lilly and Company. T.K.T. is on the speaker's bureau for Novo Nordisk and is one of the US national leads for the Semaglutide Cardiovascular Outcomes Trial in Patients with Type 2 Diabetes (SOUL) trial (NCT03914326).
Publication History
Article published online:
28 May 2025
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