Faculty Collaboration Database

Risk score to predict event-free survival after hematopoietic cell transplant for sickle cell disease. Blood 2020 Jul 30;136(5):623-626

Date

06/11/2020

Pubmed ID

32518950

Pubmed Central ID

PMC7393258

DOI

10.1182/blood.2020005687

Scopus ID

2-s2.0-85089126120 (requires institutional sign-in at Scopus site)   28 Citations

Abstract

We developed a risk score to predict event-free survival (EFS) after allogeneic hematopoietic cell transplantation for sickle cell disease. The study population (n = 1425) was randomly split into training (n = 1070) and validation (n = 355) cohorts. Risk factors were identified and validated via Cox regression models. Two risk factors of 9 evaluated were predictive for EFS: age at transplantation and donor type. On the basis of the training cohort, patients age 12 years or younger with an HLA-matched sibling donor were at the lowest risk with a 3-year EFS of 92% (score, 0). Patients age 13 years or older with an HLA-matched sibling donor or age 12 years or younger with an HLA-matched unrelated donor were at intermediate risk (3-year EFS, 87%; score, 1). All other groups, including patients of any age with a haploidentical relative or HLA-mismatched unrelated donor and patients age 13 years or older with an HLA-matched unrelated donor were high risk (3-year EFS, 57%; score, 2 or 3). These findings were confirmed in the validation cohort. This simple risk score may guide patients with sickle cell disease and hematologists who are considering allogeneic transplantation as a curative treatment relative to other available contemporary treatments.

Author List

Brazauskas R, Scigliuolo GM, Wang HL, Cappelli B, Ruggeri A, Fitzhugh CD, Hankins JS, Kanter J, Meerpohl JJ, Panepinto JA, Rondelli D, Shenoy S, Walters MC, Wagner JE, Tisdale JF, Gluckman E, Eapen M

Authors

Ruta Brazauskas PhD Associate Professor in the Data Science Institute department at Medical College of Wisconsin
Mary Eapen MBBS, DCh, MRCPI, MS Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adolescent
Adult
Anemia, Sickle Cell
Blood Grouping and Crossmatching
Child
Child, Preschool
Female
Hematopoietic Stem Cell Transplantation
Histocompatibility Antigens Class I
Humans
Male
Middle Aged
Risk Factors
Transplantation, Homologous
Treatment Outcome
Young Adult