A photo of Russell Ware.

Russell E. Ware, MD, PhD

  • Director, Division of Hematology
  • Institute Co-Executive Director, Cancer and Blood Diseases Institute
  • Director, Global Health Center                                     
  • Marjory J. Johnson Chair of Hematology Translational Research
  • Professor, UC Department of Pediatrics



As a practicing pediatric hematologist for 30 years, I provide care for children with a wide variety of hematological disorders. My primary focus is the evaluation and management of care for children with sickle cell anemia and other hemolytic anemias. I also treat children who present with other forms of anemia, as well as neutropenia or thrombocytopenia.

When I began my career, there were almost no treatments available for sickle cell anemia. We now have many new diagnostic tools and novel approaches to help improve our young patients' lives. I have always enjoyed providing direct clinical care as well as performing laboratory investigations that lead to more effective care and improved outcomes for our children.

My research goals are to determine the best ways to use hydroxyurea for children with sickle cell anemia and to understand why some children respond better than others. I’m investigating the genetic basis for treatment outcomes and hope to optimize hydroxyurea treatment for each patient. Transforming the clinical care of children with sickle cell anemia across the world, through the widespread use of hydroxyurea, is my long-term research goal.

Our studies include both translational and clinical research. I have led several National Institutes of Health (NIH)-funded trials of hydroxyurea to prevent stroke in children with sickle cell anemia, demonstrating the efficacy of this simple daily oral medication. I’m also investigating the use of hydroxyurea in low-resource settings, focusing on sub-Saharan Africa and the Caribbean. Our exciting results have shown the feasibility, safety and benefits of hydroxyurea in these settings, which could potentially transform the treatment landscape for sickle cell anemia worldwide. Some of my research trials also include point-of-care diagnostics and optimizing hydroxyurea treatment through individualized dosing.

Improving the care and health of children with sickle cell anemia has been a rewarding career goal. However, taking what we have learned in the United States and bringing this knowledge to low-resource countries has been even more gratifying. With support from the Cincinnati Children's Research Foundation, we have established productive global partnerships with local partners in six sub-Saharan countries and two Caribbean islands. These collaborations are changing the approach to diagnosing and treating sickle cell anemia worldwide.


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US News & World Report and quality metrics: Inclusion of sickle cell disease is a matter of equity. Power-Hays, A; Dandoy, CE; Lorts, A; Perentesis, JP; Unaka, N; Ware, RE; McGann, PT. Pediatric Blood and Cancer. 2022.

Assessment of Plasmodium falciparum Artemisinin Resistance Independent of kelch13 Polymorphisms and with Escalating Malaria in Bangladesh. Nima, MK; Mukherjee, A; Sazed, SA; Hossainey, MR H; Phru, CS; Johora, FT; Safeukui, I; Saha, A; Khan, AA; Marma, AS P; et al. mBio. 2022.

Reproductive equity: preserve the reserve. Quinn, CT; Ware, RE. Blood. 2022; 139:963-965.

Decreased parasite burden and altered host response in children with sickle cell anemia and severe anemia with malaria. Henrici, RC; Sautter, CL; Bond, C; Opoka, RO; Namazzi, R; Datta, D; Ware, RE; Conroy, AL; John, CC. Blood Advances. 2021; 5:4710-4720.

Pharmacokinetics of L-Glutamine (Endari) in Pediatric and Adult Sickle Cell Disease Patients: A Phase 4, Open-Label, Single-Center Study. Sadaf, A; Dong, M; Pfeiffer, A; Latham, T; Vinks, AA; Ware, RE; Quinn, CT. Blood. 2021; 138:980-980.

Effect of Hydroxyurea Therapy on the Incidence of Infections in Ugandan Children with Sickle Cell Anaemia. Namazzi, R; Conroy, AL; Bond, C; Goings, MJ; Datta, D; Ware, RE; Jang, JH; John, CC; Opoka, RO. Blood. 2021; 138:765-765.

Hydroxycarbamide treatment reduces transcranial Doppler velocity in the absence of transfusion support in children with sickle cell anaemia, elevated transcranial Doppler velocity, and cerebral vasculopathy: the EXTEND trial. Rankine-Mullings, A; Reid, M; Soares, D; Taylor-Bryan, C; Wisdom-Phipps, M; Aldred, K; Latham, T; Schultz, WH; Knight-Madden, J; Badaloo, A; et al. British Journal of Haematology. 2021; 195:612-620.

Increased oxygen affinity: to have and to hold. Quinn, CT; Ware, RE. Blood. 2021; 138:1094-1095.

Microscope diagnosis of MYH9-related thrombocytopenia. Sadaf, A; Ware, RE. Blood. 2021; 138.

Rapid and automated quantitation of dense red blood cells: A robust biomarker of hydroxyurea treatment response. Sadaf, A; Quinn, CT; Korpik, JB; Pfeiffer, A; Reynaud, M; Niss, O; Malik, P; Ware, RE; Kalfa, TA; McGann, PT. Blood Cells, Molecules, and Diseases. 2021; 90.

From the Blog

In NEJM: Dose Escalation Best Approach for Sickle Cell Med in Africa
Rare Diseases

In NEJM: Dose Escalation Best Approach for Sickle Cell Med in Africa

Russell E. Ware, MD, PhD6/25/2020

Moms with Sickle Cell Anemia Can Take Life-Saving Med and Breastfeed Baby
Rare Diseases

Moms with Sickle Cell Anemia Can Take Life-Saving Med and Breastfeed Baby

Russell E. Ware, MD, PhD3/30/2020

Our 2019 Research Annual Report
Genomics and Development

Our 2019 Research Annual Report

Russell E. Ware, MD, PhD, John Hogenesch, PhD ...2/4/2020

Sickle Cell Breakthrough: A Pill to Replace Blood Transfusions
Rare Diseases

Sickle Cell Breakthrough: A Pill to Replace Blood Transfusions

Russell E. Ware, MD, PhD6/28/2019

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