Founded at the Abramson Cancer Center at the University of Pennsylvania
Alison Loren

Alison W. Loren, MD, MSCE

Chief, Division of Hematology and Oncology, Perelman School of Medicine

Professor of Medicine, Hospital of the University of Pennsylvania Director, Blood and Marrow Transplantation, Cell Therapy and Transplant (CTT) program, Abramson Cancer Center and the Perelman School of Medicine

Alison W. Loren, MD, MSCE serves as the Chief of the Division of Hematology-Oncology at the Perelman School of Medicine. Dr. Loren is a clinician in hematologic malignancies, a Professor of Medicine, and Director of Blood and Marrow Transplant in the Transplant and Cellular Therapy Program of the Abramson Cancer Center.


With over 100 peer-reviewed publications, Dr. Loren has built her scholarship in hematology-oncology, focusing on clinical trials in hematologic malignancies and allogeneic hematopoietic cell transplantation.  Her particular interests are in improving transplant outcomes and in post-transplant survivorship with a special expertise in fertility preservation.  She reviews manuscripts for the British Journal of Haematology, the Biology of Blood and Marrow Transplantation, Cancer, Bone Marrow Transplantation, the Journal of the National Comprehensive Cancer Network, and the Annals of Internal Medicine.  Additionally, she is on the Editorial Board at Transplantation and Cellular Therapy (formerly Biology of Blood and Marrow Transplantation).  Dr. Loren is the senior author on the American Society of Clinical Oncology’s Fertility Preservation guidelines.  She is active in the Center for International Blood and Marrow Transplant Research (CIBMTR), having served as co-Chair of the Regimen Related Toxicity Committee, and has been involved in numerous activities in the Bone Marrow Transplant Clinical Trials Network (BMT-CTN) including serving as site PI for several trials. She is highly involved with the American Society of Hematology (ASH) where she currently holds an elected position on the Executive Committee.


Dr. Loren received her AB in Biology from Harvard University and completed medical school at Washington University in St. Louis. She completed her internship and residency in Internal Medicine at the Hospital of the University of Pennsylvania, where she served as Chief Resident. She also completed her subspecialty training in Hematology and Oncology at the University of Pennsylvania, during which she was Chief Fellow.  She received her Master of Science degree in Clinical Epidemiology from the Center for Clinical Epidemiology and Biostatistics (CCEB) at the University of Pennsylvania.