These cures always end up requiring immunosuppressants, which make them a non starter for most type 1 diabetics.
From the article:
> But patients in the trial had to stay on drugs to prevent the immune system from destroying the new cells. Suppressing the immune system, he said, increases the risk of infections and, over the long term, can increase the risk of cancer.
Indeed. They’re going to need to be able to make this kind of therapy using the patient’s own stem cells if they want a market for it.