2024
Circulating Tumor DNA Dynamics Fail to Predict Efficacy of Poly(ADP-ribose) Polymerase/VEGFR Inhibition in Patients With Heavily Pretreated Advanced Solid Tumors
Hu Y, Narayan A, Xu Y, Wolfe J, Vu D, Trinh T, Kantak C, Ivy S, Eder J, Deng Y, LoRusso P, Kim J, Patel A. Circulating Tumor DNA Dynamics Fail to Predict Efficacy of Poly(ADP-ribose) Polymerase/VEGFR Inhibition in Patients With Heavily Pretreated Advanced Solid Tumors. JCO Precision Oncology 2024, 8: e2300289. PMID: 38412387, PMCID: PMC10914240, DOI: 10.1200/po.23.00289.Peer-Reviewed Original ResearchConceptsCell-free circulating tumor DNANon-small-cell lung cancerSmall-cell lung cancerTriple-negative breast cancerPancreatic ductal adenocarcinomaAdvanced solid tumorsVariant allele fractionRadiographic responseOverall survivalCombination therapySolid tumorsCtDNA levelsLung cancerPretreated advanced solid tumorsDays of combination therapyMetastatic pancreatic ductal adenocarcinomaResponse to anticancer therapyAssociated with disease progressionProgression-free survivalPlasma samplesLead-inPoly(ADP-riboseInferior OSTumor DNASurvival outcomes
2020
35. EVALUATING CSF CIRCULATING TUMOR DNA IN INTRAPARENCHYMAL BRAIN METASTASIS
Cheok S, Narayan A, Arnal-Estape A, Patel A, Nguyen D, Chiang V. 35. EVALUATING CSF CIRCULATING TUMOR DNA IN INTRAPARENCHYMAL BRAIN METASTASIS. Neuro-Oncology Advances 2020, 2: ii6-ii6. PMCID: PMC7401400, DOI: 10.1093/noajnl/vdaa073.023.Peer-Reviewed Original ResearchIntraparenchymal brain metastasesBrain metastasis tissuesNormal pressure hydrocephalusBrain metastasesCerebrospinal fluidLeptomeningeal diseaseCell-free DNACSF ctDNAMetastasis tissuesTumor DNASamples of CSFStudy 12 patientsPrimary cancer typeAnalysis of CSFIntraparenchymal diseaseFurther therapySystemic metastasesPlasma ctDNASixteen patientsIntraparenchymal tumorsPressure hydrocephalusColorectal cancerLumbar punctureDetection of novelCancer-associated genes
2014
Monitoring changes in circulating tumor DNA in gastrointestinal malignancies using a novel next-generation sequencing method.
James E, Narayan A, Carriero N, Chang B, Lacy J, Stein S, Hochster H, Patel A. Monitoring changes in circulating tumor DNA in gastrointestinal malignancies using a novel next-generation sequencing method. Journal Of Clinical Oncology 2014, 32: 3645-3645. DOI: 10.1200/jco.2014.32.15_suppl.3645.Peer-Reviewed Original ResearchMeasurement of circulating tumor DNA as a cancer biomarker in gastrointestinal malignancies using a novel next-generation sequencing method.
James E, Narayan A, Stein S, Lacy J, Patel A, Hochster H. Measurement of circulating tumor DNA as a cancer biomarker in gastrointestinal malignancies using a novel next-generation sequencing method. Journal Of Clinical Oncology 2014, 32: 217-217. DOI: 10.1200/jco.2014.32.3_suppl.217.Peer-Reviewed Original ResearchGastrointestinal malignanciesMultiple time pointsTumor DNAAdvanced pancreatic cancerTime pointsCohort of patientsTumor DNA levelsChemo-radiation therapyMetastatic colon cancerAdjuvant settingCancer biomarkersMutant ctDNABevacizumab therapyTumor mutation profilesLiver metastasesGI tumorsGI cancersPancreatic cancerUltra-deep sequencingKRAS mutationsKRAS G12D mutationColon cancerAdditional longitudinal dataInformed consentLiquid biopsy
2012
Ultrasensitive Measurement of Hotspot Mutations in Tumor DNA in Blood Using Error-Suppressed Multiplexed Deep Sequencing
Narayan A, Carriero NJ, Gettinger SN, Kluytenaar J, Kozak KR, Yock TI, Muscato NE, Ugarelli P, Decker RH, Patel AA. Ultrasensitive Measurement of Hotspot Mutations in Tumor DNA in Blood Using Error-Suppressed Multiplexed Deep Sequencing. Cancer Research 2012, 72: 3492-3498. PMID: 22581825, PMCID: PMC3426449, DOI: 10.1158/0008-5472.can-11-4037.Peer-Reviewed Original ResearchConceptsNon-small cell lung cancerTumor DNATumor DNA levelsCell lung cancerCell-free tumor DNATreatment-associated changesDNA levelsTumor-specific mutationsPractical diagnostic testLung cancerPractical clinical implementationPatient samplesDiagnostic testsHotspot mutationsClinical implementationNext-generation sequencingBloodCancer biomarkersSuccessful useNormal DNAMutationsPatientsDeep sequencing