Skeptical...stem cells are undifferentiated cells and this sounds iffy. Check on ALS Untangled web site...these professionals are doing a wonderful job unmasking the charlatans...and there are a bunch. There are real stem cell trials going on in the US at Emory in Georgia and some international ones. We can be hopeful but informed.
I think that Israel has some studies underway. I think Teva is the company involved. I don't believe anything like this has been approved for market yet. Check out ALS Untangled and the scam watch here on the forums.