Genetic Variant Associated With Survival of Patients With Stage II-III Colon Cancer.
Publication/Presentation Date
11-1-2020
Abstract
BACKGROUND & AIMS: Many genetic variants have been associated with colorectal cancer risk, although few have been associated with survival times of patients. Identification of genetic variants associated with survival times might improve our understanding of disease progression and aid in outcome prediction. We performed a genome-wide association study to identify variants associated with colon cancer survival time.
METHODS: We performed a post hoc analysis of data from NCCTG N0147 (Alliance), a randomized phase 3 trial of patients with resected stage III colon cancer, and from NSABP C-08 (NRG), a phase 3 trial that compared therapy regimens for patients with resected stage II or III colon cancer. Genotype analyses were performed on DNA from blood samples from 4974 patients. We used Cox proportional hazards regression to evaluate the association of each single nucleotide polymorphism with times of overall survival and disease-free survival, adjusting for age at diagnosis, sex, treatment group, and principal components of genetic ancestry. We performed the analysis for studies N0147 and C-08 separately, and results were combined in a fixed-effects meta-analysis.
RESULTS: A locus on chromosome 7p15.2 was significantly associated with overall survival time (P ≤ 5x10
CONCLUSIONS: In an analysis of data from 2 trials of patients with stage II or III colon cancer, we identified rs76766811 as a potential prognostic variant in African American patients. This finding should be confirmed in additional study populations. ClinicalTrials.gov Identifiers: NCT00096278 (NSABP C-08) and NCT00079274 (NCCTG N0147).
Volume
18
Issue
12
First Page
2717
Last Page
2723
ISSN
1542-7714
Published In/Presented At
Penney, K. L., Banbury, B. L., Bien, S., Harrison, T. A., Hua, X., Phipps, A. I., Sun, W., Song, M., Joshi, A. D., Alberts, S. R., Allegra, C. J., Atkins, J., Colangelo, L. H., George, T. J., Goldberg, R. M., Lucas, P. C., Nair, S. G., Shi, Q., Sinicrope, F. A., Wolmark, N., … Chan, A. T. (2020). Genetic Variant Associated With Survival of Patients With Stage II-III Colon Cancer. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 18(12), 2717–2723.e3. https://doi.org/10.1016/j.cgh.2019.11.046
Disciplines
Medicine and Health Sciences | Oncology
PubMedID
31811950
Peer Reviewed for front end display
Peer-Reviewed
Department(s)
Department of Medicine, Hematology-Medical Oncology Division, Department of Medicine Faculty
Document Type
Article