FDA warning letter

The FDA regularly warns firms and individuals related to violations of compliance or even the law. The most assertive action is an FDA warning letter. Posts in this category report on such warning letters.

FDA’s CBER fires off 3 more warning letters on cellular biologics for a total of 12 in 2024

Something seems to have dramatically changed with the FDA at its Center for Biologics Evaluation and Research or CBER. Did they start handing out free Red Bull by the case? So many recent FDA warnings on cell and tissue biologics CBER is the part of the FDA that regulates regenerative medicine products like stem cells, […]

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Big spike in FDA warning letters to unproven biologics firms

Dr. Peter Marks, Director of CBER, FDA warning

This year already appears to be a record one for cell and tissue therapy-related warning letters the FDA. Directly or indirectly, these come from the FDA’s Center for Biologics Evaluation and Research or CBER. Something unusual seems to be happening. FDA’s CBER has been exceptionally active in 2024 including on cell & tissue products I’ve

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Regener-Eyes maker gets FDA warning on amniotic eye drops

Regener-Eyes

The FDA alerted the public about issues related to amniotic eye drops last year and now the agency just warned the manufacturer of one such product called Regener-Eyes. The manufacturer is Regenerative Processing Plant, LLC. The warning letter was addressed to its owner, Carl R. Harrell, MD. What’s the deal with this warning? Let’s start

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Weekly reads: stem cell shampoo, Neobiosis FDA warning, trogocytosis

stem cell shampoo

Even for a stem cell research wonk like me the broader regenerative arena never ceases to surprise me with the latest thing being stem cell shampoo. Stem cell shampoo A news item that seems promotional discussed the stem cell shampoo as yielding positive results. So after you are done with your vampire facelift, stem cell

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Weekly reads: MiMedX & Kimera Labs FDA warnings, NYT on Bryan Johnson, MUSE cell trial

AXIOFILL, MiMedx

Placental biologics firm MiMedx and exosome company Kimera Labs both recently received FDA warning letters. The letter to MiMedx was related to its placental biologics products and procedures. The new warning to Kimera Labs was about its exosome products and an amniotic product. Let’s compare these letters starting with the one to MiMedX. MiMedx warning letter

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FDA warns Neil Riordan U.S. perinatal firm Signature Biologics

Signature Biologics, Neil Riordan

Neil Riordan may be most well-known for running the Panama stem cell clinic called simply enough the Stem Cell Institute, but he also has a U.S. firm Signature Biologics. The Panama  clinic sells unproven umbilical cord cells grown in a lab for a host of medical conditions. I’ve had many concerns about it over the

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FDA warns more perinatal cell therapy firms: RenatiLabs & Cell Genuity

Dr. Leonid Macheret, FDA warning

Starting last year the FDA has focused much of its cell therapy oversight resources on birth-related firms, including both clinics and suppliers. The latest warnings went to RenatiLabs & Cell Genuity. Warnings to unproven perinatal cell therapy firms Earlier this summer the agency warned Regenative Labs. There have been quite a few letters to others in this

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3rd Invitrx warning highlights FDA oversight weakness

The FDA seems oddly slow in oversight of unproven stem cell clinic-related firms like one here in California called Invitrx Therapeutics. I’ve written before about Invitrx, but interactions between them and the FDA have continued including a new warning letter. It’s become a puzzling situation. More broadly, the FDA has done relatively little in the past

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Getting 30 F grades? FDA Strongly Warns Exosome Firm EUCYT

EUCYT-CEO-Travis-Bird

The FDA dropped a lengthy, extremely critical warning letter on a supplier of unproven exosome product called EUCYT Laboratories. For broader context, exosome therapy has somehow burst onto the scene when there’s no good data yet in my view to back up its use in the clinic. The FDA is taking notice with letters already sent

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