I don't have the best grey matter for memory, Pete, but I seem to recall several weeks ago one of our "smart" folks (maybe Dr F?) saying DF was not using double-blind study to evaluate results.  No placebo is involved with these terminally ill patients.  All are receiving Kevetrin.  You're right; a placebo group with perhaps a few short weeks to live would be cruel.  I don't think we've heard that a patient died yet, either.  I will happily stand corrected and take my punishment if any of that's not right.