November 30, 2020

The Niche

Knoepfler lab stem cell blog

FDA letter

3 min read

A firm called Kimera labs just received an untitled letter from the FDA. The firm has been supplying non-FDA-approved exosomes to various customers including at least one stem cell clinic without sparking any obvious action from the agency, but on April 10th that changed with the letter, which in my view is quite serious. What sparked it? My sense is that a major trigger was Kimera Labs being linked some weeks back to an experimental infusion of exosomes into a COVID19 patient. The letter …Read More

4 min read

Osiris, a cellular therapy biotech, recently received a so-called “untitled letter” from the FDA. The text of the letter seems on the whole negative in my opinion, while the company’s public reaction to the letter on the other hand could be seen paradoxically as rather cheery. What’s going on here? With Halloween coming, one has to wonder if the FDA letter to Osiris was more like a trick or a treat. My take is that it sure doesn’t seem like a Snickers bar. The …Read More