This is big news, and good news to pro-lifers. Wesley J. Smith has the story, to the extent that we know the story. Geron, the biggest company involved in ESCR, has shut down their unit altogether, citing a desire to save money. This is the company that just got FDA approval for, and presumably began, a clinical trial using embryonic stem cells.
There has to be a story there. Why suddenly now? This should be a place for investigative research to go to town, but don't hold your breath. We will probably never know the details. One possibility that WJS brings up concerns the European ban on patenting products made from embryonic cells, which would cut into profits. That ban was recently upheld in a court. It's also possible that something was going wrong, at a level that could bring significant liability, with the clinical trial. That, of course, is conjecture.
My own cynical take is that whatever the real reason, even if it was something negative happening with the clinical trial, or even if it was a realization that this would not actually result in any useful treatments within any foreseeable period of time, it will be left as "conserving funds" in order to find a way to continue blaming conservatives for not tapping the supposedly marvelous curative properties of human sacrifice....er...ESCR,
Meanwhile, Wesley has reported repeatedly (see his links) on the far greater potential from ethical research, including IPSCs and adult stem cells, a potential that is scandalously underreported in the media.