The first phase was the stem cell mobilization. A major problem is producing enough stem cells in thals to use for inserting the good gene. I have attended lectures twice by Evangelia Yannaki, MD, of George Papanicolaou Hospital, Thessaloniki, Greece, and it is the most complex of lectures to follow. I cannot even begin to explain the process, but the end result is that Sadelain's team, which includes the Greek trial, has had tremendous success in mobilizing stem cells. The results have been far beyond anything seen before, which gives a much better outlook for the next stage, which is actually inserting the good gene into these stem cells.
Seven years ago, it was common to hear older thals say "they've been talking about this new oral chelator for 20 years. I don't believe it will ever be reality." Today, we have Exjade. Yes, these things take a long time to develop and much of this is due to underfunding, but we do see constant progress in treatment of thalassemia. The parents of those born 40 years ago were told that their child would die by age 20. This is no longer believed. Progress is real and in thalassemia treatment, progress is incredible. Compare today to 1970. I agree that for older patients, gene therapy may never be a reality, but it will happen and it will work, but medical progress takes time and money and years of observation to make sure it is both safe and effective, but in the end, we have seen more progress in the field of treating thalassemia than in any other fatal disorder. Thal is no longer classified as a fatal condition, but is now a chronic treatable condition. What other disorder exists where this claim can be made?
I have absolute faith that this incredible worldwide team of researchers will succeed.