surmount-1 tirzepatide weight loss percent nejm 2022 ๐ Semaglutide 2.4mg: โ13.7% (SURMOUNT-5 head-to-head), ๐ 15mg: โ20.2% weight loss (same trial, 2025), ๐ Retatrutide 12mg: โ28.7% weight loss (TRIUMPH-4, Phase 3, Dec Semaglutide vs. Tirzepatide: Which GLP-1
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