FDA Updates 2001 Bioequivalence Math Guidance
Published Date: 5/29/2026
Notice
Summary
The FDA just released new rules on how drug companies should use math to prove their medicines work the same as others. This update affects anyone making or testing new or generic drugs and replaces old guidance from 2001. Companies should check out these fresh tips now to keep their drug approvals smooth and avoid delays or extra costs.
No Economic Impacts Identified for this Document
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-14073 — Drug Establishment Registration and Drug Listing Requirements for Establishments Engaged in Distributed Manufacturing and Certain Foreign Establishments
The FDA wants to make it easier for drug makers who work in several locations to register as one company instead of many. They’re also updating rules for foreign drug companies to match new laws about handling health threats. If you’re in drug manufacturing, get ready to comment by September 11, 2026, and keep an eye on possible paperwork changes that could affect your business.
2026-13047 — Establishment Registration and Product Listing for Tobacco Products
The FDA wants to make sure all tobacco product makers, both in the U.S. and abroad, register their businesses and list their products. This new rule closes a big gap by including foreign companies, helping the FDA keep better track of tobacco products for public health. Comments on this proposal are open until September 14, 2026, so affected businesses should get ready to update their info and possibly face new costs.
2026-14155 — Considerations for Potential Future Therapeutic Use of Psychedelic Drugs; Public Hearing; Request for Comments
The FDA is hosting a public hearing on September 14, 2026, to explore how psychedelic drugs might be used safely as future medicines. They want to hear from patients, doctors, and anyone interested before October 5, 2026, to help shape rules and support safe, supervised treatments. This could change how some mental health conditions are treated and might open new doors for therapy options.
2026-14158 — Psychedelic Drugs: Considerations for Clinical Investigations; Guidance for Industry; Availability
The FDA just released new guidance to help drug makers design safe and smart clinical trials for psychedelic medicines, which could treat mental health and addiction issues. This update affects companies developing these drugs by giving clear rules to follow, speeding up research while keeping safety first. The guidance is effective now, and the FDA welcomes comments anytime, making it easier and clearer to bring these promising treatments to patients.
2026-14119 — Topical Dermatologic Corticosteroids: In Vivo Bioequivalence; Guidance for Industry; Availability
The FDA just released new rules for companies making generic skin creams with steroids. These rules explain how to prove their products work just as well as the original ones by testing on real people’s skin. This update affects drug makers and helps speed up safe, affordable medicine options starting now.
2026-13820 — Determination That TOVALT ODT (Zolpidem Tartrate) Orally Disintegrating Tablets, 5 Milligrams and 10 Milligrams, Were Not Withdrawn From Sale for Reasons of Safety or Effectiveness
The FDA has decided that TOVALT ODT tablets (5 mg and 10 mg) weren’t taken off the market because of safety or effectiveness problems. This means generic drug makers can now apply to sell their own versions, making it easier and cheaper for people who need this sleep aid. If approved, more affordable options could hit the shelves soon, helping patients and saving money.
Previous / Next Documents
Previous: 2026-10704 — Extension of Lebanon Designation for Temporary Protected Status
Lebanon’s Temporary Protected Status (TPS) has been extended for six more months, from May 28 to November 27, 2026. This means Lebanese TPS holders can keep living and working in the U.S. without worry while the government reviews conditions back home. The extension happened automatically because recent events in Lebanon delayed the usual review process.
Next: 2026-10706 — Agency Information Collection Activities; Submission to the Office of Management and Budget (OMB) for Review and Approval; Comment Request; Form NIST-366A: Request for Personal Radiation Monitoring Services
NIST is updating Form NIST-366A, which people working near radiation use to request personal radiation monitoring. This affects federal employees, contractors, and visitors on the NIST campus. They’re asking for public comments by July 28, 2026, to make sure the form works well and keeps everyone safe without extra hassle.