BACKGROUND AND PURPOSE: We have performed a case-control study among prostate cancer patients treated with three-dimensional conformational radiotherapy (3D-CRT) in order to investigate the association between single nucleotide polymorphisms (SNPs), treatment and patient features with gastrointestinal and genitourinary acute toxicity. MATERIAL AND METHODS: A total of 698 patients were screened for 14 SNPs located in the ATM, ERCC2, LIG4, MLH1 and XRCC3 genes. Gastrointestinal and genitourinary toxicities were recorded prospectively using the Common Terminology Criteria for Adverse Events v3.0. RESULTS: The XRCC3 SNP rs1799794 (G/G OR=5.65; 95% CI: 1.95-16.38; G/A OR=2.75; 95% CI: 1.25-6.05; uncorrected p-value=2.8×10(-03); corrected p-value=0.03; FDR q-value=0.06) as well as the mean dose received by the rectum (OR=1.06; 95% CI: 1.02-1.1; uncorrected p-value=2.49×10(-03); corrected p-value=0.03; FDR q-value=0.06) were significantly associated with gastrointestinal toxicity after correction for multiple testing. Those patients who undergone previous prostatectomy were less prone to develop genitourinary toxicity (OR=0.38; 95% CI: 0.18-0.71; uncorrected p-value=4.95×10(-03); corrected p-value=0.03; FDR q-value=0.08). Our study excludes the possibility of a >2-fold risk increase in genitourinary acute toxicity being due to rs1801516 ATM SNP, the rs1805386 and rs1805388 LIG4 markers, as well as all the SNPs evaluated in the ERCC2, MLH1 and XRCC3 genes. CONCLUSIONS: The XRCC3 rs1799794 SNP and the mean dose received by the rectum are associated with the development of gastrointestinal toxicity after 3D-CRT.
BACKGROUND AND PURPOSE: We have performed a case-control study among prostate cancerpatients treated with three-dimensional conformational radiotherapy (3D-CRT) in order to investigate the association between single nucleotide polymorphisms (SNPs), treatment and patient features with gastrointestinal and genitourinary acute toxicity. MATERIAL AND METHODS: A total of 698 patients were screened for 14 SNPs located in the ATM, ERCC2, LIG4, MLH1 and XRCC3 genes. Gastrointestinal and genitourinary toxicities were recorded prospectively using the Common Terminology Criteria for Adverse Events v3.0. RESULTS: The XRCC3 SNP rs1799794 (G/G OR=5.65; 95% CI: 1.95-16.38; G/A OR=2.75; 95% CI: 1.25-6.05; uncorrected p-value=2.8×10(-03); corrected p-value=0.03; FDR q-value=0.06) as well as the mean dose received by the rectum (OR=1.06; 95% CI: 1.02-1.1; uncorrected p-value=2.49×10(-03); corrected p-value=0.03; FDR q-value=0.06) were significantly associated with gastrointestinal toxicity after correction for multiple testing. Those patients who undergone previous prostatectomy were less prone to develop genitourinary toxicity (OR=0.38; 95% CI: 0.18-0.71; uncorrected p-value=4.95×10(-03); corrected p-value=0.03; FDR q-value=0.08). Our study excludes the possibility of a >2-fold risk increase in genitourinary acute toxicity being due to rs1801516ATM SNP, the rs1805386 and rs1805388LIG4 markers, as well as all the SNPs evaluated in the ERCC2, MLH1 and XRCC3 genes. CONCLUSIONS: The XRCC3rs1799794 SNP and the mean dose received by the rectum are associated with the development of gastrointestinal toxicity after 3D-CRT.
Authors: Nicholas G Zaorsky; Amy S Harrison; Edouard J Trabulsi; Leonard G Gomella; Timothy N Showalter; Mark D Hurwitz; Adam P Dicker; Robert B Den Journal: Nat Rev Urol Date: 2013-09-10 Impact factor: 14.432
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Authors: Luis Alberto Henríquez-Hernández; Almudena Valenciano; Palmira Foro-Arnalot; María Jesús Alvarez-Cubero; José Manuel Cozar; José Francisco Suárez-Novo; Manel Castells-Esteve; Adriana Ayala-Gil; Pablo Fernández-Gonzalo; Montse Ferrer; Ferrán Guedea; Gemma Sancho-Pardo; Jordi Craven-Bartle; María José Ortiz-Gordillo; Patricia Cabrera-Roldán; Estefanía Herrera-Ramos; Pedro C Lara Journal: PLoS One Date: 2013-07-23 Impact factor: 3.240
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