title: Testing of candidate single nucleotide variants associated with paclitaxel neuropathy in the trial NCCTG N08C1 (Alliance).
abstract: Paclitaxel-induced peripheral neuropathy (PIPN) cannot be predicted from clinical parameters and might have a pharmacogenomic basis. Previous studies identified single nucleotide variants (SNV) associated with PIPN. However, only a subset of findings has been confirmed to date in more than one study, suggesting a need for further re-testing and validation in additional clinical cohorts. Candidate PIPN-associated SNVs were identified from the literature. SNVs were retested in 119 patients selected by extreme phenotyping from 269 in NCCTG N08C1 (Alliance) as previously reported. SNV genotyping was performed by a combination of short-read sequencing analysis and Taqman PCR. These 22 candidate PIPN SNVs were genotyped. Two of these, rs7349683 in the EPHA5 and rs3213619 in ABCB1 were found to be significantly associated with PIPN with an Odds ratios OR = 2.07 (P = 0.02) and OR = 0.12 (P = 0.03), respectively. In addition, three SNVs showed a trend toward a risk- or protective effect that was consistent with previous reports. The rs10509681 and rs11572080 in the gene CYP2C8*3 showed risk effect with an OR = 1.49 and rs1056836 in CYP1B1 showed a protective effect with an OR = 0.66. None of the other results supported the previously reported associations, including some SNVs displaying an opposite direction of effect from previous reports, including rs1058930 in CYP2C8, rs17222723 and rs8187710 in ABCC2, rs10771973 in FGD4, rs16916932 in CACNB2 and rs16948748 in PITPNA. Alliance N08C1 validated or supported a minority of previously reported SNV-PIPN associations. Associations previously reported by multiple studies appeared to have a higher likelihood to be validated by Alliance N08C1.
authors.affiliation: Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota.
authors.forename: Ganesh K
authors.initials: GK
authors.lastname: Boora
authors.affiliation: Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota.
authors.forename: Rahul
authors.initials: R
authors.lastname: Kanwar
authors.affiliation: Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota.
authors.forename: Amit A
authors.initials: AA
authors.lastname: Kulkarni
authors.affiliation: Department of Health Sciences Research (Biostatistics and Informatics), Mayo Clinic, Rochester, Minnesota.
authors.forename: Alexej
authors.initials: A
authors.lastname: Abyzov
authors.affiliation: Alliance Statistics and Data Center, Mayo Clinic, Rochester, Minnesota.|Mayo Clinic Cancer Center, Rochester, Minnesota.
authors.forename: Jeff
authors.initials: J
authors.lastname: Sloan
authors.affiliation: Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota.|Mayo Clinic Cancer Center, Rochester, Minnesota.
authors.forename: Kathryn J
authors.initials: KJ
authors.lastname: Ruddy
authors.affiliation: Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota.|Mayo Clinic Cancer Center, Rochester, Minnesota.
authors.forename: Michaela S
authors.initials: MS
authors.lastname: Banck
authors.affiliation: Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota.|Mayo Clinic Cancer Center, Rochester, Minnesota.
authors.forename: Charles L
authors.initials: CL
authors.lastname: Loprinzi
authors.affiliation: Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota.|Mayo Clinic Cancer Center, Rochester, Minnesota.
authors.forename: Andreas S
authors.initials: AS
authors.lastname: Beutler
mesh_terms: D000483:Alleles; D000972:Antineoplastic Agents, Phytogenic / Q000009:adverse effects*; D002986:Clinical Trials as Topic; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D008297:Male; D000089762:Multidrug Resistance-Associated Protein 2; D009369:Neoplasms / Q000150:complications* / Q000188:drug therapy; D016017:Odds Ratio; D017239:Paclitaxel / Q000009:adverse effects*; D010523:Peripheral Nervous System Diseases / Q000209:etiology*; D020641:Polymorphism, Single Nucleotide
chemical_list: C000715087:ABCC2 protein, human; D000972:Antineoplastic Agents, Phytogenic; D000089762:Multidrug Resistance-Associated Protein 2; D017239:Paclitaxel
keywords: CIPN; Chemotherapy-induced peripheral neuropathy; genetics