Hi Papeno,
Those who respond positively to dacogen treatment do so in one of the following three categories:
* complete response
* partial response or
* hematologic improvement
It appears that those in the first two categories comprised 17%; those in the last category 13%. So it seems to me that your father has a much better chance of improvement (30%), than the figure you were given, namely 15%. See pages four and five of this link:
http://www.fda.gov/cder/foi/label/2006/021790lbl.pdf
I received four cycles of dacogen from 10/30/06 through 3/2/07. Though I remained transfusion dependent for another five & half months, the time came when my hemoglobin quit falling. I am in the hematologic improvement category and remain transfusion independent to this day (much longer than anyone in the above referenced trial. Each category has very specific limits as you’ll note in the referenced article.
So I hope you’ll be encouraged by my experience and perhaps your father will do even better achieving a complete or partial response.
May God bless you and your father.