Penland, D.W
It is worth noting that for currently licensed GLP-1 receptor agonists in the UK, the thyroid tumour signal is classified as a precautionary consideration based on rodent data, rather than a formal contraindication as reflected in UK Summaries of Product Characteristics (SmPCs)
Food and Drug Administration doesn't regulate dietary supplements for safety and effectiveness before they are marketed
Frequently Asked Questions What is the retatrutide triple agonist GLP-1 GIP glucagon mechanism in simple terms

Approval Timeline and Availability CagriSema: Ahead in the Race FDA Submission: December 18, 2025 (NDA filed) Expected FDA Decision: Q4 2026 or Q1 2027 Predicted Launch: Mid-2027 Advantage: 6-12 month head start on retatrutide REDEFINE Program Status: REDEFINE-1: Completed (obesity, 20.4% weight loss) REDEFINE-2: Completed (type 2 diabetes, 13.7% weight loss) REDEFINE-3: Ongoing (cardiovascular outcomes trial) REDEFINE-8: Ongoing (body composition study) High-dose CagriSema (2.4/7.2mg): Starting late 2026 Retatrutide: More Trials Needed FDA Submission: Expected Q4 2026 or Q1 2027 Expected FDA Decision: Late 2027 Predicted Launch: Q1-Q2 2028 TRIUMPH Program Status: TRIUMPH-4: Completed (osteoarthritis, 28.7% weight loss) TRIUMPH-1: Complete 28.3% weight loss (May 2026) TRIUMPH-2: Expected Q3Q4 2026 (obesity + type 2 diabetes) TRIUMPH-3: Expected later 2026 (obesity + cardiovascular disease) TRIUMPH-6: Weight maintenance trial (ongoing) Disadvantage: Needs more trials before submission, 6-12 month delay vs CagriSema

This is when many women see a "whoosh" effect, where weeks of hidden progress suddenly become visible