my Husband les went tHrougH a pHase 1 toxicity study for stem cell treatment tHis summer. tHe study was performed to see if anytHing bad would Happen if tHey did it (notHing bad Happened). pHase 2 Hasn't begun, and i don't know tHat it will. we asked tHe doctor today if tHere was any news and He said tHat researcH is going on all over tHe world, but no more is Happening witH tHis particular part of it. new tHings come out every otHer montH or so......keep your Hopes up......tHey'll find sometHing.