Dr. Alexandre Lucas is a Pediatric Hematologist/Oncologist and medical director of the pediatric inpatient unit at MSK Kids. Hailing from the Netherlands, he studied Biomedical Sciences and Medicine at the University of Leiden and pursued further training in New York City, completing a pediatric residency in the Bronx followed by a pediatric hematology/oncology fellowship at the combined program at MSKCC and New York Presbyterian/Weill Cornell Medicine. Dr. Lucas’ work at the IDMS lab focuses on identifying predictors of outcomes after allogeneic hematopoietic cell transplant. His work revealed that early B cell immune reconstitution, defined as a B cell count above 25 within 100 days after transplant, correlates with improved outcomes, including better overall survival, reduced non-relapse mortality, and decreased acute and chronic GvHD. He has also published studies on outcomes after transplant for Fanconi anemia, as well as for post-transplant relapse in patients who underwent cord blood transplant. His publications are included in prominent journals like Cytotherapy, Nature – Bone Marrow Transplant and Frontiers in Oncology.