That is what I was thinking too, but I have not really kept up with the recent drug trial work and news except to know it was positive. The ANX-188 is to help deal with sickle cell anemia is it not? Which I know leads to all the other blood related problems.
A lot of new drug trials are all about synergistic combinations of two or three drugs now, not just one. Perhaps they will save money having the staff and patients in over lapping studies.... Could be interesting.