|
1
|
Kahn JM, Cole PD, Blonquist TM, Stevenson K, Jin Z, Barrera S, Davila R, Roberts E, Neuberg DS, Athale UH, Clavell LA, Laverdiere C, Leclerc JM, Michon B, Schorin MA, Welch JJ, Sallan SE, Silverman LB, Kelly KM. An investigation of toxicities and survival in Hispanic children and adolescents with ALL: Results from the Dana-Farber Cancer Institute ALL Consortium protocol 05-001. Pediatr Blood Cancer 2018; 65:10.1002/pbc.26871. [PMID: 29090520 PMCID: PMC5766393 DOI: 10.1002/pbc.26871] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/26/2017] [Accepted: 09/29/2017] [Indexed: 12/15/2022]
Abstract
PURPOSE This study compared the relative incidence of treatment-related toxicities and the event-free and overall survival between Hispanic and non-Hispanic children undergoing therapy for acute lymphoblastic leukemia (ALL) on Dana-Farber Cancer Institute ALL Consortium protocol 05-001. PATIENTS AND METHODS Secondary analysis of prospectively collected data from a phase III multicenter study in children and adolescents of 1-18 years with previously untreated ALL. RESULTS Between 2005 and 2011, 794 eligible patients enrolled on DFCI 05-001, 730 of whom were included in this analysis (19% [N = 150] Hispanic, 73% [N = 580] non-Hispanic). Hispanic patients were more likely to be ≥10 years of age (32% vs. 24%, P = 0.045) at diagnosis. Toxicity analyses revealed that Hispanic patients had significantly lower cumulative incidence of bone fracture (P < 0.001) and osteonecrosis (ON; P = 0.047). In multivariable risk regression, the risk of ON was significantly lower in Hispanic patients ≥10 years (HR 0.23; P = 0.006). Hispanic patients had significantly lower 5-year event-free survival (EFS) (79.4%; 95% CI: 71.6-85.2) and overall survival (OS) (89.2%; 95% CI: 82.7-93.4) than non-Hispanic patients (EFS: 87.5%; 95% CI: 84.5-90.0, P = 0.004; OS: 92.7%; 95% CI: 90.2-94.6, P = 0.006). Exploratory analyses revealed differences between Hispanic and non-Hispanic patients in the frequency of common variants in genes related to toxicity or ALL outcome. CONCLUSION Hispanic children treated for ALL on DFCI 05-001 had fewer bone-related toxicities and inferior survival than non-Hispanic patients. While disease biology is one explanatory variable for outcome disparities, these findings suggest that biologic and non-biologic mechanisms affecting drug delivery and exposure in this population may be important contributing factors as well.
Collapse
Affiliation(s)
- Justine M. Kahn
- Division of Pediatric Hematology/Oncology/Stem Cell Transplantation, Columbia University Medical Center, NewYork-Presbyterian Morgan Stanley Children’s Hospital, New York, NY, USA
| | - Peter D. Cole
- Division of Pediatric Hematology/Oncology, Children’s Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Traci M. Blonquist
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Kristen Stevenson
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Zhezhen Jin
- Department of Biostatistics, Columbia University Medical Center, New York, New York, USA
| | - Sergio Barrera
- Department of Economics, University of Minnesota, Minneapolis, Minnesota, USA
| | - Randy Davila
- Department of Psychology, University of California, Davis, Davis, California, USA
| | - Emily Roberts
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan, USA
| | - Donna S. Neuberg
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Uma H. Athale
- Division of Pediatric Hematology/Oncology, McMaster University, Hamilton, ON, Canada
| | - Luis A. Clavell
- Division of Pediatric Oncology, San Jorge Children’s Hospital, San Juan, Puerto Rico
| | - Caroline Laverdiere
- Division of Hematology and Oncology, Hospital Sainte-Justine, University of Montreal, Montreal, Canada
| | - Jean-Marie Leclerc
- Division of Hematology and Oncology, Hospital Sainte-Justine, University of Montreal, Montreal, Canada
| | - Bruno Michon
- Division of Hematology-Oncology, Centre Hospitalier de l’Université Laval, Quebec City, Canada
| | | | - Jennifer J.G. Welch
- Division of Pediatric Hematology-Oncology, Hasbro Children’s Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Stephen E. Sallan
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Lewis B. Silverman
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Kara M. Kelly
- Division of Pediatric Hematology/Oncology/Stem Cell Transplantation, Columbia University Medical Center, NewYork-Presbyterian Morgan Stanley Children’s Hospital, New York, NY, USA,Roswell Park Cancer Institute and Women and Children’s Hospital, University at Buffalo School of Medicine and Biomedical Sciences, Buffalo, NY, USA
| |
Collapse
|