The field of regenerative medicine is ever expanding and evolving. As more viable options become available to patients, it’s important to stay abreast of regulation surrounding many of these applications.
In late 2019, the Food and Drug Administration (FDA) began informing the public of multiple reports of serious adverse events experienced by patients who were “treated” with non-FDA approved products marketed as containing exosomes. As a general matter, exosomes used to treat diseases and conditions in humans are regulated as drugs and biological products under the Public Health Service Act and the Federal Food Drug and Cosmetic Act and are subject to premarket review and approval requirements. At the time of the 2019 warning, there were no FDA-approved exosome products and the FDA since then has not put out any new guidance.
Platelet-Rich Plasma (“PRP”) has become a popular treatment for various conditions from sports injuries to hair rejuvenation so it makes sense that PRP regulation must keep up. With PRP, both the device used to separate platelets and the subsequent use of the PRP product fall under the scope of the U.S. Food and Drug Administration (“FDA”). The common question is: what is approved by the FDA with regards to PRP? Given the increased use, it is important for health care providers to understand the FDA’s standpoint on PRP regulation.
Medical Device Regulation
Let’s start with PRP devices. Generally, the FDA provides several avenues in which a device, drug, or biologic can come to market. For medical devices, an applicant can either obtain Premarket Approval (“PMA”) or 510(k) clearance. Most PRP preparation systems have utilized the 510(k) clearance process. What is meant by 510(k) clearance? The 510(k) application process, also known as premarket notification (“PMN”), is for medical devices that are seen as lower risk which are found to be “substantially equivalent” to a previously cleared device. Under the Food, Drug and Cosmetic Act, device manufacturers are required to register and notify the FDA of the intent to market a medical device in advance.
The FDA then determines whether the device is equivalent to a device already on the market. The 510(k) clearance process is a common way for PRP devices because it is less costly and time consuming as opposed to obtaining PMA. There is one important caveat though with 510(k) clearance. Clearance does not equate to approval for treatment of any indication. It only applies to its intended use in a specific setting. For example, in past warning letters issued by the FDA, the agency has required certain manufacturers to add language to its label stating that the PRP prepared by the device had not been evaluated for any clinical indication.
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