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Our Affiliations
HMS Affiliate

Dana-Farber/Boston Children's is a teaching affiliate of Harvard Medical School.

Our Affiliations

Lewis B. Silverman, MD

  • Vice Chair for Clinical Affairs, Department of Pediatric Oncology
  • Associate Chief, Pediatric Oncology, Boston Children's Hospital
  • Institute Physician
  • Professor of Pediatrics, Harvard Medical School

Office Phone

  • 617-632-6191

Appointment Phone

  • 888-733-4662 (new)
  • 617-632-3270 (established)

Fax

  • 617-632-5710

General

Treatment Centers

Discipline

Clinical Interests

Acute lymphoblastic leukemia (ALL)

Location

Background

Board Certifications

  • Pediatric Hematology/Oncology, 1998

Fellowship

  • Boston Children's Hospital/Dana-Farber Cancer Institute, Pediatric Hematology/Oncology, 1996

Residency

  • Boston Combined Residency Program, Boston Children's Hospital/Boston Medical Center, Pediatrics

Internships

  • Children's Hospital Boston

Medical School

  • Harvard Medical School, 1991

Biography

Dr. Silverman received his MD from Harvard Medical School in 1991 and training in pediatrics at Boston Children's Hospital in 1994. He subsequently completed a fellowship in pediatric hematology-oncology at Boston Children's Hospital and Dana-Farber Cancer Institute. In 1997, he became an attending physician in pediatric hematology-oncology at Dana-Farber/Boston Children's, and today, he is Vice Chair of Clinical Affairs, Department of Pediatric Oncology, at Dana-Farber Cancer Institute and Associate Chief, Pediatric Oncology, at Boston Children's Hospital. Dr. Silverman also leads the DFCI/ALL Consortium, which conducts multi-institutional clinical trials for children and adolescents with newly diagnosed acute lymphoblastic leukemia.

Research

Childhood Acute Lymphoblastic Leukemia

Acute lymphoblastic leukemia (ALL) is the most common cancer in children. Fifty years ago, childhood ALL was universally fatal, but today long-term event-free survival rates are nearly 80%. Despite this improved outcome, therapy remains nonspecific and toxic.The Dana-Farber Cancer Institute ALL Consortium has been conducting clinical trials in childhood ALL for over 30 years, with a focus on improving survival while minimizing toxicity. A major focus of our research has been to improve the tolerability of the drug asparaginase. Asparaginase is an important agent used to treat children with ALL, but up to one-third of patients experience significant side effects from it, and those who are unable to receive all of the intended asparaginase doses have a higher relapse rate. We are currently conducting a trial comparing intravenous PEG-asparaginase with intramuscular E. coli asparaginase to determine if the former is associated with less toxicity. We also have attempted to minimize the cardiac toxicity related to another drug, doxorubicin. In a randomized trial, patients received doxorubicin either with or without dexrazoxane, a potential cardioprotectant agent. Significantly fewer patients treated with dexrazoxane had elevations of troponin T (a serum marker of cardiac injury), and those who did had notably lower elevations, suggesting that dexrazoxane prevented doxorubicin-induced cardiac damage. We continue to monitor long-term cardiac function, and are investigating pharmacogenomic predictors of late cardiac toxicity. We also continue to study and test strategies to minimize other potential late effects in long-term survivors, including neurocognitive late effects and bony morbidity (such as osteonecrosis). Importantly, we have recently identified a new prognostic factor: minimal residual disease (MRD) levels. Molecular techniques can be used to measure levels of residual leukemia in patients who, by microscopic evaluation, are in complete remission. We found that patients with relatively high MRD levels at the end of one month of treatment had a much higher risk of relapse than those with lower MRD levels. In our current clinical trial, we are intensifying therapy for patients with high MRD levels in an attempt to improve their outcome. We continue to pursue the development of targeted therapies that are more leukemia-specific and less toxic. Areas of interest include Notch 1 inhibitors (for patients with T-cell ALL), mTOR pathway inhibitors (to reverse corticosteroid resistance) and flt-3 inhibitors (for patients with MLL gene rearrangements). Because of our unique adult-pediatric consortium, we will be able to test these and other novel targeted agents in patients regardless of age.

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