FDA coverage on Peptide News Digest follows the agency's actual paper trail: approval letters, warning letters, PCAC meeting minutes, 503A bulks list rulings, draft guidance, and Citizen Petitions on substances ranging from semaglutide to BPC-157.
The center of gravity in 2025 and 2026 has been compounding. Once GLP-1 shortages resolved, the agency turned to enforcement — 503A patient-specific compounding versus 503B outsourcing, which APIs sit on which list, what counts as a 'clinical need,' and whether additive formulations count as new drugs. The April 30, 2026 proposal to exclude semaglutide, tirzepatide, and liraglutide from the 503B bulks list is the most consequential single move so far.
Outside GLP-1, the FDA has been active on peptide-vendor warning letters, advisory committee votes (PCAC, Endocrinologic and Metabolic Drugs), and the long grind of Section 503A's bulks list. Browse the latest below.
Hyman, Phelps & McNamara's FDA Law Blog published a comprehensive two-part analysis April 22 walking compounders and peptide industry stakeholders through the Federal Register notice, the July 23-24 PCAC meeting structure, the distinction between Category 2 removal and Section 503A Bulk Drug Substances List inclusion, and the notice-and-comment rulemaking that must follow any PCAC recommendation. The analysis emphasizes that the July 9, 2026 written comment deadline and June 30 oral presentation notification are critical inflection points for industry engagement.
Effective April 22, BPC-157, TB-500, Semax, Epitalon, MOTS-c and seven other peptides were formally removed from the FDA's 503A Category 2 significant-safety-concerns list after original nominators withdrew submissions. The FDA Pharmacy Compounding Advisory Committee will meet July 23-24 to decide whether to add these peptides to the 503A bulks list, which would restore legal compounding under prescription.
A Bloomberg opinion piece published April 21 argues that the FDA's planned July 23-24 PCAC review of seven peptides (BPC-157, MOTS-c, KPV, among others) and RFK Jr.'s broader push to reclassify 14 of 19 Category 2 peptides doesn't give consumers the evidence-based safety and efficacy data they need. The piece frames the ongoing compounding debate as a consumer-protection gap that clinical trial evidence — not political reclassification — should fill.
A University of Colorado Anschutz-led secret shopper study presented at Obesity Medicine Association 2026 surveyed 75 weight-loss clinics and medspas across two US states. 69 of 74 still offered compounded semaglutide and 65 of 74 offered compounded tirzepatide despite FDA resolving the name-brand shortages. Four source facilities had received FDA warnings or state licensing discipline since 2023 — three related to sterile compounding. Many clinics report using 'additive' formulations to skirt compounding restrictions.
A BioCentury analysis argues the FDA's April 16 decision to convene a July Pharmacy Compounding Advisory Committee meeting on 12 previously restricted peptides reflects HHS Secretary RFK Jr.'s enthusiasm more than scientific evidence. The outlet warns that most of the peptides under review — for conditions spanning ulcerative colitis, wound healing, obesity, insomnia, and neurological disorders — lack robust clinical safety or efficacy data, and that ideology is increasingly shaping agency decisions.
BioSpace analysis frames the ACHIEVE-4 results as a direct answer to the FDA's April 1 letter requesting post-market liver injury and cardiovascular data. The 'outstanding' type 2 diabetes data, combined with cardiovascular safety and all-cause death reductions, strengthens Lilly's position ahead of its Q2 FDA submission and could reduce regulatory friction for the oral GLP-1 franchise.
STAT News analysis of the composition of the July 23-24 Pharmacy Compounding Advisory Committee suggests panelists are likely to vote in favor of broader peptide access. The panel will review BPC-157 (ulcerative colitis), KPV (wound healing), TB-500, MOTS-c, emideltide, semax, and epitalon — largely aligning with RFK Jr.'s February 2026 pledge to move 14 restricted peptides back to Category 1.
Enhanced, an elite sports performance and direct-to-consumer peptide company, formally welcomed the FDA's Pharmacy Compounding Advisory Committee meeting schedule. CEO Maximilian Martin stated the reclassification will move peptides 'out of the grey market' and enable licensed compounding access. Enhanced plans to expand its Live Enhanced platform to offer additional peptides once they are formally moved to Category 1.
The Washington Post framed the FDA's upcoming July peptide panel through the lens of the exploding wellness craze, noting peptides are pitched as quick fixes for muscle building, injury healing, and anti-aging with minimal supporting research. When the FDA added 19 peptides to its restricted list in 2023, it cited safety risks including cancer and liver, kidney, and heart problems — concerns that have not been resolved.
The FDA announced it will convene the Pharmacy Compounding Advisory Committee on July 23-24 to evaluate whether seven or more peptides — including BPC-157, TB-500, and other popular wellness peptides — should be added to the list of substances eligible for pharmacy compounding. The announcement follows HHS Secretary RFK Jr.'s February pledge to reclassify 14 restricted peptides.
The GLP-1 mass tort litigation (MDL 3094) before Judge Karen Marston in the Eastern District of Pennsylvania now includes 3,363 cases alleging gastroparesis and other injuries. Expert discovery closed in late March, with Daubert motions due April 28 and summary judgment motions due April 30. A Science Day on vision loss claims is set for June 2.
Scientific American reports that the FDA's decision to convene an expert advisory panel — rather than unilaterally reclassifying peptides — signals a more cautious approach than RFK Jr.'s original February pledge suggested. The panel will weigh limited safety data against surging consumer demand and a growing black market for unregulated peptide products.
The FDA asked Eli Lilly for additional safety data on liver injury linked to Foundayo (orforglipron), plus post-marketing trials to assess cardiovascular event risk and delayed gastric emptying. A lactation study was also required. The letter, signed April 1, was published April 14 — just two weeks after the drug's fast-track approval under the National Priority Voucher program.
The FDA published updated guidance clarifying compounding requirements now that semaglutide and tirzepatide shortages have been resolved. The statement reaffirmed enforcement deadlines for 503A and 503B pharmacies while acknowledging ongoing legal challenges from the Outsourcing Facilities Association.
CNN published a comprehensive consumer guide distinguishing FDA-approved peptide therapeutics from unregulated wellness peptides. Experts warn that rising demand is fueling an online black market with unknown safety risks, while HHS Secretary RFK Jr. pushes to relax restrictions.
ProPublica published a major investigation into the FDA's planned reversal on 19 restricted peptides, warning that reclassification under HHS Secretary RFK Jr. could expose consumers to inadequately tested drugs. The Alliance for Pharmacy Compounding acknowledged it knows little about the safety of individual peptides being sold to the public.
A federal grand jury indicted Utah osteopathic physician Justin Bradley Watkins for obtaining non-FDA-approved peptides including tirzepatide, semaglutide, BPC-157, and retatrutide from a Chinese supplier, affixing fake labels, and selling them to over 200 patients without disclosing their unapproved status.
The FDA granted Apotex Corp. the first-ever tentative approval for a generic semaglutide injection equivalent to Ozempic/Wegovy. Actual market entry is blocked by Novo Nordisk patents until ~2032, but the milestone proves a complex peptide injectable can meet FDA generic equivalence standards.