From Stem Cell Research News:
Animals being tested using Geron Corporation’s treatment for spinal cord injury developed cysts at the injury sites, a finding that led the U.S. FDA to place a clinical hold on a planned human trial of the treatment, the Menlo Park, Calif.-based stem cell firm said on August 27. However, Geron said, the cysts did not spread, did not harm the lab animals, nor did they lead to teratomas, a form of tumor that is usually, but not always, benign. Recent testing of the product showed no cyst development, according to the company.
Teratomas or not, considering there are documented cases of teratomas forming at human ESCR injection sites, the FDA was wise in suspending adult trials.
HT: Wesley J. Smith at Secondhand Smoke.
