On September 19, 2025, FDA published in the Federal Register a final rule reverting the regulatory definition of “in vitro diagnostic products” (IVD products) in 21 C.F.R. § 809.3 to the text as it existed prior to the effective date of the May 2024 LDT …
On August 6, 2025, the Office of Information and Regulatory Affairs (OIRA) published a notice that FDA has rescinded the Laboratory Developed Test (LDT) Final Rule that was vacated earlier this year by the U.S. District Court for the Eastern District of Texas. The rescission …
On March 31, 2025, U.S. District Judge Sean D. Jordan ordered that FDA’s Laboratory Developed Tests (LDT) Final Rule be vacated and set aside, in its entirety. That Rule sought to codify FDA’s view that LDTs are medical devices subject to FDA regulation under the …
The multi-decade battle over FDA’s power to regulate Laboratory Developed Tests (LDTs) had its day in court earlier this week. On February 19, 2025, Judge Sean Jordan in the Eastern District of Texas heard oral arguments in American Clinical Laboratory Association (ACLA) and the Association …
FDA recently released 510(k) Third Party Review Program and Third Party Emergency Use Authorization (EUA) Review which finalizes the draft guidance of the same title issued in December 2023. We previously discussed the Third Party Review Program in a blog post last year when FDA …
On August 22, 2024, FDA hosted a webinar to provide further guidance on the regulatory requirements it intends to apply to Laboratory Developed Test (LDT) developers in Stage 1 of the phaseout policy of the LDT Final Rule – during which FDA has said laboratories …
In its final rule on laboratory developed tests (LDTs) (see our prior blog here), FDA acknowledged that “some laboratories may lack familiarity, experience, or existing infrastructure for complying with FDA requirements” and made multiple references to a “small entity compliance guidance” that the agency intended …
The FDA’s new rule for laboratory developed tests (LDTs), unless overturned through litigation (see here), by legislation, or the election, is going to have profound effects on the U.S. health care system. At this point, nobody knows all the impacts the rule will have. But …
On May 15th and 16th, respectively, Senator Rand Paul and Congressmen Brad Finstad and Dan Crenshaw introduced Senate and House resolutions “providing for congressional disapproval under chapter 8 of title 5, United States Code” of FDA’s Final Rule to regulate Laboratory Developed Tests (LDTs). These …
On April 29, the FDA issued their long-awaited, controversial Final Rule governing the oversight of laboratory developed tests (LDTs). This new rule will dramatically alter the LDT regulatory landscape, while at the same time requiring significant operational changes and posing strategic challenges for many LDTs. …
On April 29, 2024, FDA announced its finalization of the laboratory developed test (LDT) rule. The final rule will be published in the Federal Register on Monday May 6, 2024 (here). The final rule marks another milestone in the more than three decades long battle …
We’ve been hearing for quite some time that a Final LDT Rule would likely be coming this spring, before May 1. This timing has been attributed to FDA’s desire to avoid having the rule being overturned by Congress under the Congressional Review Act. Of course, …
On March 21, 2024, the House Energy and Commerce held a subcommittee hearing titled “Evaluating Approaches to Diagnostic Test Regulation and the Impact of the FDA’s Proposed Rule.” House Energy and Commerce Committee Chair Cathy McMorris Rodgers (R-WA) and Subcommittee Chair Brett Guthrie (R-KY), in announcing …
Hyman, Phelps & McNamara, P.C. (HP&M), the largest dedicated food and drug law firm in the U.S., is pleased to announce that Director Allyson Mullen has been appointed to the Board of Directors of the Association of Medical Diagnostic Manufacturers (AMDM). This prestigious appointment recognizes …
FDA’s proposed rule to regulate laboratory developed tests (LDTs) as devices took one more step towards publication as a final rule – and to a likely judicial showdown. On March 1, the Office of Management and Budget (OMB) received the draft final LDT rule for …
