In fiscal 2025, FDA issued 51 letters authorizing generic drug developers to obtain samples of brand-name drugs sold under restricted safety programs, according to the agency's GDUFA performance report to Congress1. A year earlier it issued 43, the fiscal 2024 report2 says.
Those letters, called Covered Product Authorizations, exist because of a 2019 law known as the CREATES Act. Before it passed, generic developers told FDA again and again that they could not buy enough of a brand drug to run the tests every generic needs. Drugs sold under a federal safety program called a REMS were part of that problem, and the law gave them an extra step of their own, according to FDA3.
Sample access is one of the less visible ways generic entry can be slowed. FDA and GAO reports since 2019 track what the law has and has not changed.
What a REMS is
Section 901 of a 2007 law, the Food and Drug Administration Amendments Act11, gave FDA authority to require a Risk Evaluation and Mitigation Strategy for a drug with a serious safety risk. Most medicines manage risk through labeling alone. A REMS adds required steps, and the strictest ones include what the statute calls elements to assure safe use, or ETASU.
Under 21 U.S.C. 355-1(f)7, those elements can require that prescribers be specially trained or certified, that pharmacies or other dispensers be specially certified, that the drug be dispensed only in certain settings such as hospitals, that patients show documentation of safe-use conditions such as lab results, that patients be monitored, or that each patient be enrolled in a registry. FDA's REMS overview6 gives one example, a long-acting injectable antipsychotic that may be given only in certified facilities able to observe patients for at least three hours.
| Measure | Figure | Source and date |
|---|---|---|
| Active REMS covering drugs | 74 REMS, 523 drugs | GAO, as of March 18, 2019 |
| Reference standard drugs under a REMS | 143 | GAO, as of March 18, 2019 |
| Of those, with at least one approved generic also under a REMS | 64 | GAO, as of March 18, 2019 |
Why samples became a fight
A generic developer has to prove its product is bioequivalent to the brand, its reference listed drug, which requires testing against the brand itself. A brand under a REMS that limits who may dispense it cannot simply be ordered from a wholesaler, and some brands without a REMS are also sold only through limited distribution channels. In those cases the developer depends on the brand company, or distributors it chooses, agreeing to sell.
Congress anticipated part of the problem in 2007. The REMS statute says no brand holder "shall use any element to assure safe use" required by FDA "to block or delay approval" of a generic application. The provision did not, however, give generic developers a way to force a sale.
FDA tried several workarounds. A 2019 GAO report8 describes a 2014 FDA draft guidance under which FDA would write letters telling brand companies that selling samples to a particular developer would not violate the REMS. FDA also posted a public list of the products about which generic developers had sent it sample-access inquiries, meant, the agency later explained3, to "raise awareness about the scope of the RLD access problem." It has since taken the list down, saying the posting "has served its purpose" now that the law directs inquiries elsewhere.
Antitrust enforcers were watching too. In Senate testimony on Nov. 27, 20189, an FTC commissioner said a brand company may improperly invoke REMS requirements to justify refusing samples, and that, based on data reported to FDA, generic firms had been "unable to obtain samples of 52 branded pharmaceutical drugs." As of GAO's October 2019 report8, the FTC had not brought its own case charging a company with an antitrust violation for refusing to provide samples.
GAO also noted a gap in FDA's tools. FDA's letters applied only to REMS drugs, and the agency told GAO its options were more limited for drugs without a REMS, even though those drugs had been subject to the same practices.
What CREATES requires
Congress enacted the Creating and Restoring Equal Access to Equivalent Samples Act on Dec. 20, 2019, as section 610 of Division N of the Further Consolidated Appropriations Act, 2020 (Public Law 116-94), according to FDA's fiscal 2025 GDUFA report1. FDA posts the full text of the law4. Its sample provisions are codified at 21 U.S.C. 355-2, and they cover developers of both generics and biosimilars.
| Step | What the law says |
|---|---|
| Request | An eligible developer asks the brand license holder for sufficient quantities of the product on "commercially reasonable, market-based terms" |
| FDA authorization | Needed only if the product has a REMS with elements to assure safe use; FDA must act within 120 days of the request; clinical studies need safety protections comparable to the REMS |
| Brand's deadline | 31 days after the request, or for a REMS product, 31 days after the later of the request or receipt of FDA's authorization |
| Lawsuit | If samples are not delivered on time, the developer can sue the license holder |
| Remedies | Court order to provide samples without delay; reasonable attorney's fees and costs; a deterrent award, capped at the revenue the brand earned on the product during the delay, if the court finds the delay lacked a legitimate business justification |
| Safety programs for the generic | A generic may join the brand's single shared system or use a different, comparable program; FDA may require a shared system only if no comparable alternative would work |
Under the statute, FDA's role is narrow. It does not referee sales or sue anyone. Its main job is issuing the authorization for REMS products, and its guidance on how to obtain a Covered Product Authorization5, published in September 2022, remains a draft. The FDA page on CREATES3 says the agency took down its list of access inquiries once the law gave developers a direct route, because the law "identifies parties other than FDA" to whom those inquiries and complaints should go.
What has happened since
Before passage, the Congressional Budget Office scored the standalone CREATES Act of 2019 bill, which was later folded into the appropriations law. In an April 25, 2019, estimate10, CBO projected that earlier entry of lower-priced generics and biosimilars would cut federal direct spending by $3.3 billion and raise revenues by $0.6 billion over 2019 to 2029.
FDA's figures show the authorization step in steady use, with 43 letters in fiscal 2024 and 51 in fiscal 2025. FDA does not publish which drugs they cover, and the reports do not say how many developers later had to sue to get samples.
Samples are one of several points where a brand's rights and a generic's timeline meet. Patent challenges are covered in our Hatch-Waxman explainer, petitions to FDA in citizen petitions and generic approval, and the review itself in Inside FDA's Office of Generic Drugs. When a restricted drug finally gets its first copy, it shows up on FDA's first generics list and on GxRadar's approvals page.
FDA's next count of Covered Product Authorizations, for fiscal 2026, will appear in the agency's GDUFA performance report for that year. Until then, any developer seeking samples of a product under a REMS with elements to assure safe use still has to get FDA's authorization first.
Sources and notes
- FDA (2026). Generic Drug User Fee Amendments FY 2025 Performance Report to Congress
www.fda.gov/media/191187/download - FDA (2025). Generic Drug User Fee Amendments FY 2024 Performance Report to Congress
www.fda.gov/media/187051/download - FDA (2022). Access to Product Samples: The CREATES Act
www.fda.gov/drugs/guidance-compliance-regulatory-information/access-product-samples-create - FDA (2019). Further Consolidated Appropriations Act, 2020 (H.R. 1865), Division N, Title I, Section 610 (CREATES Act text)
www.fda.gov/media/136039/download - FDA (2022). Draft guidance: How To Obtain a Covered Product Authorization
www.fda.gov/regulatory-information/search-fda-guidance-documents/how-obtain-covered-produc - FDA (2025). Risk Evaluation and Mitigation Strategies (REMS) overview
www.fda.gov/drugs/drug-safety-and-availability/risk-evaluation-and-mitigation-strategies-r - GovInfo (2026). 21 U.S.C. 355-1, Risk evaluation and mitigation strategies
www.govinfo.gov/link/uscode/21/355-1?link-type=html - GAO (2019). Generic Drug Development: Stakeholders' Views of Risk Evaluation and Mitigation Strategies Differ, GAO-20-94 (highlights)
www.gao.gov/assets/gao-20-94-highlights.pdf - FTC (2018). Oral statement of Commissioner Christine S. Wilson before the Senate Commerce Subcommittee on Consumer Protection, November 27, 2018
www.ftc.gov/system/files/documents/public_statements/1423979/commissioner_wilson_nov_2018_ - CBO (2019). Cost estimate: H.R. 965, the CREATES Act of 2019
www.cbo.gov/system/files/2019-04/hr965.pdf - Congress (2007). Public Law 110-85, Food and Drug Administration Amendments Act of 2007 (section 901, REMS)
www.govinfo.gov/content/pkg/PLAW-110publ85/html/PLAW-110publ85.htm
Superscript numbers in the text link to these sources. GxRadar data (NADAC histories, recall and shortage counts) come from CMS and FDA files described on the sources page. Researched and drafted with AI assistance and checked against the sources above. Information current as of Nov 3, 2026 and may change. Spot an error? It will be corrected once confirmed.
Cited by
Specialty pharmacies, limited distribution and how they differ from the drugstoreMedication Guides and patient package insertsCitizen petitions and generic drug approvalNot health advice. GxRadar is for general information only. Nothing here is medical, pharmacy, legal or financial advice. Do not start, stop or change any medicine based on this site. Talk to your pharmacist or prescriber about your own situation. Laws, prices and program rules described here can change; confirm current details with the official source.