September 26, 2020

The Niche

Knoepfler lab stem cell blog

FDA Warning Letter

4 min read

What’s been going on in the stem cell and regenerative medicine field over the past week and what are some worthwhile things to read? Today’s post has recommended recent reads from the scientific literature and the media. I’ve also got our weekly stem cell/regenerative medicine quiz question and the answer to last week’s. You can check out last week’s recommended reads here, which has last week’s quiz question. Toward the bottom of the post there’s also a “blast from the past” link to a piece …Read More

5 min read

The FDA has stem cell clinics squarely on its radar screen now and it’s pulling the trigger with many letters going out to this problematic industry. In the past, sometimes years went by with no letters at all or one letter in total to stem cell clinics so this marks a major shift. Background on lead-up to wave of FDA activity I count 7 letters in a less than two-month span from mid-March to now, which may be the most in history in the …Read More

3 min read

Should we call it stem cell synchronicity for stem cell supplier firm Invitrx? What was it about March 16? Sometimes strange things happen in the stem cell world such as last week on March 16 I wrote that the FDA needs to do more about unproven exosomes, and then on the same day a new FDA warning letter went out to Invitrx mentioning almost as an aside an unapproved exosome product amongst many other products and issues. No, I don’t have some secret red telephone where I …Read More

3 min read

Umbilical “stem cell” supplier Liveyon has suspended sales of its products according to the WaPo after a harsh FDA warning letter. While not fully shutting off the tap to the perinatal stem cell clinic universe, as other suppliers including in Utah seem to be continuing, this Liveyon voluntary hold will equal a major reduction in supply. Why did Liveyon chose to halt sales at least for the moment? By comparison other clinic-related firms have continued business as usual despite various FDA actions against them …Read More