Donald Small
Advanced in Leukemia

Dr. Donald Small

Pediatric Hematology Oncology
Johns Hopkins Medicine
Johns Hopkins Children's Center
Baltimore, MD 

Advanced in Leukemia
Johns Hopkins Medicine
Johns Hopkins Children's Center
Baltimore, MD 
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Overview

Dr. Donald Small is the Kyle Haydock Professor of Oncology. He holds joint appointments in Pediatrics and Cellular and Molecular Medicine and Human Genetics. He also directs the Johns Hopkins/National Cancer Institute Pediatric Hematology/Oncology Fellowship program. Dr. Small received his undergraduate, and then M.D. and Ph.D. degrees from the Johns Hopkins University in 1979 and 1985. His Ph.D. research was conducted with Bert Vogelstein in the Oncology Department and his postdoctoral research with Tom Kelly in the Molecular Biology and Genetics Department. He trained in pediatrics and pediatric hematology/oncology at Johns Hopkins and joined the faculty in 1990. Dr. Small’s laboratory was the first to clone the human FLT3 gene that is the most frequently mutated gene in acute myeloid leukemia (AML) and results in very poor chances of cure for these patients. The investigations of FLT3 led Dr. Small and his team to discover drugs able to inhibit the cancer-generating activity of this important gene. His laboratory showed that a new class of drugs known as tyrosine kinase inhibitors could kill FLT3-affected cells, thus developing one of the earliest molecularly targeted cancer therapies. They then developed a test that enabled them to screen a host of additional kinase inhibitors and find several with great potency against FLT3. His group also led the first clinical trials investigating the use of a FLT3 inhibitor in adult relapsed and refractory FLT3 mutant AML, and determined how best to combine these drugs with chemotherapy. They also helped design the first pediatric trials of FLT3 inhibitors in pediatric AML and infant ALL. Dr. Small’s lab continues to investigate leukemic processes and the role of stem cells in governing the activities of the FLT3 gene in leukemia.

Dr. Small is rated as an Advanced provider by MediFind in the treatment of Leukemia. His top areas of expertise are Acute Myeloid Leukemia (AML), Leukemia, Acute Promyelocytic Leukemia, and Acute Lymphoblastic Leukemia (ALL).

His clinical research consists of co-authoring 55 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 35 articles in the study of Leukemia.

Residency
Johns Hopkins University School of Medicine, Pediatrics, 1987
Specialties
Pediatric Hematology Oncology
Licenses
Internal Medicine in MD
Fellowships
Johns Hopkins University School of Medicine, 1990
Languages Spoken
English
Gender
Male

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Locations

Johns Hopkins Children's Center
Bloomberg 11N, Baltimore, MD 21287
Call: 410-955-8751

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


55 Total Publications

Sphingosine-1-phosphate receptor modulators resensitize FLT3-ITD acute myeloid leukemia cells with NRAS mutations to FLT3 inhibitors.
Sphingosine-1-phosphate receptor modulators resensitize FLT3-ITD acute myeloid leukemia cells with NRAS mutations to FLT3 inhibitors.
Journal: bioRxiv : the preprint server for biology
Published: December 04, 2025
View All 55 Publications
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Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

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Find Dr. Small's expertise for a condition
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      • Advanced
      • Acute Myeloid Leukemia (AML)
        Dr. Small is
        Advanced
        . Learn about Acute Myeloid Leukemia (AML).
        See more Acute Myeloid Leukemia (AML) experts
      • Leukemia
        Dr. Small is
        Advanced
        . Learn about Leukemia.
        See more Leukemia experts
      • Experienced
      • Acute Lymphoblastic Leukemia (ALL)
        Dr. Small is
        Experienced
        . Learn about Acute Lymphoblastic Leukemia (ALL).
        See more Acute Lymphoblastic Leukemia (ALL) experts
      • Acute Promyelocytic Leukemia
        Dr. Small is
        Experienced
        . Learn about Acute Promyelocytic Leukemia.
        See more Acute Promyelocytic Leukemia experts
      • Renal Cell Carcinoma (RCC)
        Dr. Small is
        Experienced
        . Learn about Renal Cell Carcinoma (RCC).
        See more Renal Cell Carcinoma (RCC) experts
      • Wilms Tumor
        Dr. Small is
        Experienced
        . Learn about Wilms Tumor.
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