Regulators increasingly expect explicit acknowledgment of such uncertainty and clear plans to resolve it through biomarker-driven early-phase studies, rather than relying solely on associative epidemiology
As a primary care physician, I have noticed one pattern
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FDA's April 30, 2026 Proposal On April 30, 2026, the FDA announced a proposal to exclude semaglutide, tirzepatide, and liraglutide from the 503B Bulks List, finding no clinical need for outsourcing facilities to compound these drugs from bulk drug substances when FDA-approved versions are available
These are also the doses studied and approved for prevention of secondary cardiovascular events and metabolic dysfunction-associated steatotic liver disease (semaglutide) and for sleep apnea (tirzepatide)
How much weight can I realistically lose with each medication