He pioneered hematopoietic stem cell transplant in Latin America, doing the first transplant in 1979 and more than 1800 procedures, mainly allogeneic, were performed. The major experience in stem cell transplant concentrated in CML and acquired and constitutional Aplastic Anemias patients. Following the advent of TKIs inhibitors (year 2000), he organized and coordinated a CML outpatient clinic where approximately 400 patients have been registered and some enrolled in several protocols. Also, a laboratory for BCR/ABL quantification and mutation detection was settled that receive samples from several Brazilian Centers.
He has been interested in treatment optimization of chronic myelogenous leukemia (CML) and has been involved in the management of the randomized CML Studies I-IV of the German CML Study Group for more than 19 years. His special interests are the molecular monitoring of minimal residual disease and mechanisms of resistance in CML, and targeted therapy in a variety of neoplastic disorders.