2024
Area Vulnerability and Disparities in Therapy for Patients With Metastatic Renal Cell Carcinoma
Rahman S, Long J, Westvold S, Leapman M, Spees L, Hurwitz M, McManus H, Gross C, Wheeler S, Dinan M. Area Vulnerability and Disparities in Therapy for Patients With Metastatic Renal Cell Carcinoma. JAMA Network Open 2024, 7: e248747. PMID: 38687479, PMCID: PMC11061765, DOI: 10.1001/jamanetworkopen.2024.8747.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaArea-level measuresRenal cell carcinomaPatient-level factorsSystemic therapyEthnic disparitiesRelative risk ratiosSocially vulnerable areasCell carcinomaMeasures of social vulnerabilityMedicare beneficiariesCohort studyFee-for-service Medicare Parts AOdds ratioReceipt of systemic therapyLogistic regressionArea-level characteristicsAssociated with lack of treatmentNon-Hispanic blacksRetrospective cohort studyIndividual-level demographicsNon-Hispanic whitesAssociated with disparitiesUS Medicare beneficiariesMeasures of disadvantage
2023
Disparities in immune and targeted therapy utilization for older US patients with metastatic renal cell carcinoma
Chow R, Long J, Hassan S, Wheeler S, Spees L, Leapman M, Hurwitz M, McManus H, Gross C, Dinan M. Disparities in immune and targeted therapy utilization for older US patients with metastatic renal cell carcinoma. JNCI Cancer Spectrum 2023, 7: pkad036. PMID: 37202354, PMCID: PMC10276895, DOI: 10.1093/jncics/pkad036.Peer-Reviewed Original ResearchConceptsOral anticancer agentsTherapy utilizationMedicare beneficiariesNon-Hispanic white raceMetastatic renal cell carcinomaNon-Hispanic black raceOlder US patientsUS Medicare beneficiariesRenal cell carcinomaLogistic regression modelsTherapy receiptMultivariable adjustmentSystemic therapyMale sexUS patientsCell carcinomaStudy criteriaBlack raceFemale sexPatient raceWhite raceImmunotherapyOutcomes persistSexPatients
2022
Genetic testing in privately insured women with surgically treated breast cancer
Dinan M, Pitafi S, Greenup R, Long J, Gross C. Genetic testing in privately insured women with surgically treated breast cancer. Breast Cancer Research And Treatment 2022, 198: 177-181. PMID: 36542252, DOI: 10.1007/s10549-022-06829-4.Peer-Reviewed Original ResearchConceptsBreast cancerGenetic testingRoutine breast cancer careBRCA1/BRCA2 genetic testingHormone receptor statusBreast cancer careInvasive breast cancerBRCA2 genetic testingReceptor statusWomen 50Cancer careAge 45Family historyOlder womenInsurer databaseYoung womenCancerWomenCoverage policiesUnclear implicationsPatientsSurgeryPurposeRatesYearsPrevalenceEnd-of-Life Care for Patients With Metastatic Renal Cell Carcinoma in the Era of Oral Anticancer Therapy
Dzimitrowicz H, Wilson L, Jackson B, Spees L, Baggett C, Greiner M, Kaye D, Zhang T, George D, Scales C, Pritchard J, Leapman M, Gross C, Dinan M, Wheeler S. End-of-Life Care for Patients With Metastatic Renal Cell Carcinoma in the Era of Oral Anticancer Therapy. JCO Oncology Practice 2022, 19: e213-e227. PMID: 36413741, PMCID: PMC9970274, DOI: 10.1200/op.22.00401.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaOral anticancer agentsDays of lifeRenal cell carcinomaEOL careSystemic therapySEER-MedicareHospital deathCell carcinomaLife careIntensive care unit admissionCancer informationAggressive EOL careHigh-quality EOLOral anticancer therapySystemic therapy useCare unit admissionMultivariable logistic regressionQuality of endUnit admissionED visitsOlder patientsYounger patientsHospital admissionTherapy useConcurrent prescribing of opioids with other sedating medications after cancer diagnosis: a population-level analysis
Check D, Baggett C, Kim K, Merlin J, Oeffinger K, Winn A, Roberts M, Robinson T, Dinan M. Concurrent prescribing of opioids with other sedating medications after cancer diagnosis: a population-level analysis. Supportive Care In Cancer 2022, 30: 9781-9791. PMID: 36396793, DOI: 10.1007/s00520-022-07439-y.Peer-Reviewed Original ResearchConceptsConcurrent prescribingSedating medicationsPatient characteristicsMedication-related eventsRetrospective cohort studyNon-metastatic cancerPopulation-based assessmentCancer registry dataMental health conditionsSubstance use disordersPrivate insurance claimsConcurrent prescriptionsCohort studyHispanic patientsSymptom managementRelative riskRegistry dataGabapentinoidsOpioidsPrescribingUse disordersPatientsPoisson regressionPrior useMedicationsRacial and Ethnic Variation in COVID-19 Vaccination Uptake Among Medicare Beneficiaries with Cancer History
Poghosyan H, Dinan MA, Tamamyan G, Nelson L, Jeon S. Racial and Ethnic Variation in COVID-19 Vaccination Uptake Among Medicare Beneficiaries with Cancer History. Journal Of Racial And Ethnic Health Disparities 2022, 10: 2354-2362. PMID: 36149576, PMCID: PMC9510246, DOI: 10.1007/s40615-022-01415-2.Peer-Reviewed Original ResearchConceptsNon-Hispanic white beneficiariesCancer historyVaccine doseMedicare beneficiariesWhite beneficiariesVaccine uptakeHispanic beneficiariesMultivariable logistic regression analysisCOVID-19 vaccination uptakeSelf-reported cancer historyCOVID-19 vaccine uptakeSelf-reported receiptCOVID-19 vaccination ratesLogistic regression analysisNon-Hispanic blacksSelf-reported raceUnvaccinated beneficiariesVaccination uptakeVaccine dosesVaccination ratesVaccine confidenceVaccine availabilitySupplement surveyCross-sectional dataEthnic variationOral Anticancer Agent (OAA) Adherence and Survival in Elderly Patients With Metastatic Renal Cell Carcinoma (mRCC)
Dinan MA, Wilson LE, Greiner MA, Spees LP, Pritchard JE, Zhang T, Kaye D, George D, Scales CD, Baggett CD, Gross CP, Leapman MS, Wheeler SB. Oral Anticancer Agent (OAA) Adherence and Survival in Elderly Patients With Metastatic Renal Cell Carcinoma (mRCC). Urology 2022, 168: 129-136. PMID: 35878815, PMCID: PMC9588695, DOI: 10.1016/j.urology.2022.07.012.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaOral anticancer agentsRenal cell carcinomaCell carcinomaMedicare beneficiariesPocket costsOdds of adherenceRetrospective cohort studyDisease-specific survivalReal-world adherenceRCC-specific survivalProportion of daysNon-significant trendAdherent useOAA therapyCohort studyElderly patientsMultivariable analysisStudy criteriaUnivariate analysisOAA treatmentPatientsCarcinomaAdherenceSurvivalAssociation between cognitive impairment and oral anticancer agent use in older patients with metastatic renal cell carcinoma
Pritchard JE, Wilson LE, Miller SM, Greiner MA, Cohen HJ, Kaye DR, Zhang T, Dinan MA. Association between cognitive impairment and oral anticancer agent use in older patients with metastatic renal cell carcinoma. Journal Of The American Geriatrics Society 2022, 70: 2330-2343. PMID: 35499667, PMCID: PMC9378524, DOI: 10.1111/jgs.17826.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaOral anticancer agentsRenal cell carcinomaMRCC diagnosisCognitive impairmentCell carcinomaFive-year survival rateSEER-Medicare patientsMedicare Part D coveragePart D coverageMild cognitive impairmentMRCC patientsMRCC treatmentEligible patientsOlder patientsTreatment initiationKidney cancerAgent useOAA treatmentPatientsStage IVSurvival rateNew casesDiagnosisD diagnosisMediators of Racial Disparity in the Use of Prostate Magnetic Resonance Imaging Among Patients With Prostate Cancer
Leapman MS, Dinan M, Pasha S, Long J, Washington SL, Ma X, Gross CP. Mediators of Racial Disparity in the Use of Prostate Magnetic Resonance Imaging Among Patients With Prostate Cancer. JAMA Oncology 2022, 8: 687-696. PMID: 35238879, PMCID: PMC8895315, DOI: 10.1001/jamaoncol.2021.8116.Peer-Reviewed Original ResearchConceptsProstate magnetic resonance imagingMagnetic resonance imagingPopulation-based cohort studyProstate cancerWhite patientsRacial disparitiesCohort studyMRI useIndividual-level socioeconomic statusEligible male patientsSocioeconomic statusNeighborhood-level socioeconomic statusLocalized prostate cancerProstate cancer diagnosisObserved racial disparitiesProstate magnetic resonanceMediation analysisPathologic factorsMale patientsUS SurveillanceBlack patientsMedicare databaseMAIN OUTCOMEUS adultsNew diagnosisPatient- And Provider-Level Predictors of Survival Among Patients With Metastatic Renal Cell Carcinoma Initiating Oral Anticancer Agents
Spees LP, Dinan MA, Jackson BE, Baggett CD, Wilson LE, Greiner MA, Kaye DR, Zhang T, George DJ, Scales CD, Pritchard JE, Leapman M, Gross CP, Wheeler SB. Patient- And Provider-Level Predictors of Survival Among Patients With Metastatic Renal Cell Carcinoma Initiating Oral Anticancer Agents. Clinical Genitourinary Cancer 2022, 20: e396-e405. PMID: 35595633, PMCID: PMC9529768, DOI: 10.1016/j.clgc.2022.04.010.Peer-Reviewed Original ResearchConceptsOral anticancer agentsCause mortalityReal-world populationHazard ratioComplex patientsMetastatic renal cell carcinoma patientsFDA approvalMetastatic renal cell carcinomaRenal cell carcinoma patientsProvider-level predictorsRetrospective cohort studyCell carcinoma patientsPatients' clinical characteristicsProvider-level factorsPivotal clinical trialsState Cancer RegistryRenal cell carcinomaCox hazard modelHigh-quality careAnticancer agentsProvider Enumeration SystemMRCC patientsClinical characteristicsCohort studyPatient characteristicsPatient, provider, and hospital factors associated with oral anti-neoplastic agent initiation and adherence in older patients with metastatic renal cell carcinoma
Kaye DR, Wilson LE, Greiner MA, Spees LP, Pritchard JE, Zhang T, Pollack CE, George D, Scales CD, Baggett CD, Gross CP, Leapman MS, Wheeler SB, Dinan MA. Patient, provider, and hospital factors associated with oral anti-neoplastic agent initiation and adherence in older patients with metastatic renal cell carcinoma. Journal Of Geriatric Oncology 2022, 13: 614-623. PMID: 35125336, PMCID: PMC9232903, DOI: 10.1016/j.jgo.2022.01.008.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaCancer-specific survivalMedical oncologistsRenal cell carcinomaHospital factorsHospital characteristicsOlder patientsCell carcinomaOAA treatmentDiagnosis of mRCCHigh-quality cancer careOlder adultsDecreased relative riskHigh-poverty zip codesYears of ageAnti-neoplastic agentsMRCC diagnosisSpecialty accessSurvival persistCause mortalityCancer providersPatient factorsMetastatic diagnosisCancer careRelative riskEvaluation of mild cognitive impairment and dementia in patients with metastatic renal cell carcinoma
Miller SM, Wilson LE, Greiner MA, Pritchard JE, Zhang T, Kaye DR, Cohen HJ, Becher RD, Maerz LL, Dinan MA. Evaluation of mild cognitive impairment and dementia in patients with metastatic renal cell carcinoma. Journal Of Geriatric Oncology 2022, 13: 635-643. PMID: 34996724, PMCID: PMC9232862, DOI: 10.1016/j.jgo.2021.12.012.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaNon-cancer controlsRenal cell carcinomaMRCC diagnosisMild cognitive impairmentCell carcinomaRisk factorsCognitive impairmentOlder adultsProportional hazards modelNew cancer treatmentsCohort entryOlder patientsSurgical therapyMAIN OUTCOMEExclusion criteriaAgent useDisease processHazards modelPatientsMedicare datasetCancer treatmentDiagnosisDementiaCarcinoma
2021
Adoption of New Risk Stratification Technologies Within US Hospital Referral Regions and Association With Prostate Cancer Management
Leapman MS, Wang R, Park HS, Yu JB, Sprenkle PC, Dinan MA, Ma X, Gross CP. Adoption of New Risk Stratification Technologies Within US Hospital Referral Regions and Association With Prostate Cancer Management. JAMA Network Open 2021, 4: e2128646. PMID: 34623406, PMCID: PMC8501394, DOI: 10.1001/jamanetworkopen.2021.28646.Peer-Reviewed Original ResearchConceptsProstate magnetic resonance imagingMagnetic resonance imagingHospital referral regionsProportion of patientsProstate cancerGenomic testingCohort studyReferral regionsRetrospective cohort studyProstate cancer carePatient-level analysisCommercial insurance claimsProstate cancer managementUS hospital referral regionsYears of ageProportion of menPatients 40Definitive treatmentCancer careTesting uptakeHRR levelMAIN OUTCOMECancer managementPatientsRegional uptakeAnalysis of Sociodemographic, Clinical, and Genomic Factors Associated With Breast Cancer Mortality in the Linked Surveillance, Epidemiology, and End Results and Medicare Database
Robinson TJ, Wilson LE, Marcom PK, Troester M, Lynch CF, Hernandez BY, Parrilla E, Brauer HA, Dinan MA. Analysis of Sociodemographic, Clinical, and Genomic Factors Associated With Breast Cancer Mortality in the Linked Surveillance, Epidemiology, and End Results and Medicare Database. JAMA Network Open 2021, 4: e2131020. PMID: 34714340, PMCID: PMC8556625, DOI: 10.1001/jamanetworkopen.2021.31020.Peer-Reviewed Original ResearchConceptsResidual tissue repositoryBreast cancer outcomesSEER-Medicare dataCancer outcomesCox proportional hazards regression modelHealth servicesEstrogen receptor-positive invasive breast cancerSymptomatic detectionBreast cancer-specific survivalPopulation-based cohort studyEstrogen receptor-positive tumorsProportional hazards regression modelsExploratory genomic analysisSEER-Medicare cohortCancer-specific survivalSocioeconomic statusHigh-grade diseaseInvasive breast cancerReceptor-positive tumorsSubset of womenBreast cancer mortalityAdvanced disease stageHazards regression modelsClaims-based algorithmGrowth factor β activationProvider‐ and patient‐level predictors of oral anticancer agent initiation and adherence in patients with metastatic renal cell carcinoma
Spees LP, Wheeler SB, Jackson BE, Baggett CD, Wilson LE, Greiner MA, Kaye DR, Zhang T, George D, Scales CD, Pritchard JE, Leapman M, Gross CP, Dinan MA. Provider‐ and patient‐level predictors of oral anticancer agent initiation and adherence in patients with metastatic renal cell carcinoma. Cancer Medicine 2021, 10: 6653-6665. PMID: 34480518, PMCID: PMC8495289, DOI: 10.1002/cam4.4201.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaPatient-level factorsRenal cell carcinomaCell carcinomaRisk ratioState cancer registry dataPatient-level predictorsPatient-level characteristicsCancer registry dataProvider Enumeration SystemMRCC diagnosisMedical oncologyInsurance typeMedicare patientsRegistry dataFemale providersPatientsMedian proportionPoisson regressionCare issuesPrivate insuranceMale providersAdherenceCarcinomaAnticancer agentsPatterns and Predictors of Oral Anticancer Agent Use in Diverse Patients With Metastatic Renal Cell Carcinoma
Wheeler SB, Spees LP, Jackson BE, Baggett CD, Wilson LE, Greiner MA, Kaye DR, Zhang T, George D, Scales CD, Pritchard JE, Dinan MA. Patterns and Predictors of Oral Anticancer Agent Use in Diverse Patients With Metastatic Renal Cell Carcinoma. JCO Oncology Practice 2021, 17: e1895-e1904. PMID: 34138665, PMCID: PMC8678030, DOI: 10.1200/op.20.01082.Peer-Reviewed Original ResearchConceptsMetastatic renal cell carcinomaOral anticancer agentsRenal cell carcinomaIndex dateCell carcinomaRisk ratioPatterns of usePatients age 80Patients age 18Population-based studyAdjusted risk differenceOral therapyPatient characteristicsContinuous enrollmentHigh frailtyAge 80Agent useRisk differencePatientsDiverse patientsComorbiditiesAge 18Regulatory approvalCarcinomaLog-Poisson modelReporting of Study Participant Demographic Characteristics and Demographic Representation in Premarketing and Postmarketing Studies of Novel Cancer Therapeutics
Varma T, Wallach JD, Miller JE, Schnabel D, Skydel JJ, Zhang AD, Dinan MA, Ross JS, Gross CP. Reporting of Study Participant Demographic Characteristics and Demographic Representation in Premarketing and Postmarketing Studies of Novel Cancer Therapeutics. JAMA Network Open 2021, 4: e217063. PMID: 33877309, PMCID: PMC8058642, DOI: 10.1001/jamanetworkopen.2021.7063.Peer-Reviewed Original ResearchConceptsNovel cancer therapeuticsPostmarketing studyBlack patientsCancer therapeuticsDemographic dataOlder adultsUS cancer populationUS Cancer StatisticsCross-sectional studyRace/ethnicityParticipants' demographic characteristicsPercentage of trialsPatient sexCancer populationClinical studiesCancer statisticsMAIN OUTCOMEDrug AdministrationFDA approvalStudy participantsCancer typesDemographic characteristicsDemographic informationStudy samplePatientsTreatment at Integrated Centers Might Bridge the Academic-Community Survival Gap in Patients With Metastatic Non-Small Cell Carcinoma of the Lung
Ramalingam S, Dinan M, Crawford J. Treatment at Integrated Centers Might Bridge the Academic-Community Survival Gap in Patients With Metastatic Non-Small Cell Carcinoma of the Lung. Clinical Lung Cancer 2021, 22: e646-e653. PMID: 33582071, DOI: 10.1016/j.cllc.2020.12.013.Peer-Reviewed Original ResearchConceptsNon-small cell lung cancerMetastatic non-small cell lung cancerCommunity-based centersAcademic centersMetastatic non-small cell carcinomaNon-small cell carcinomaStudy periodPrimary end pointNational Cancer DatabaseCell lung cancerSquamous cell carcinomaCancer-related deathMost cancer-related deathsTreatment-related improvementOverall survivalSurvival gapSurvival disparitiesImproved survivalCell carcinomaLung cancerCancer DatabaseRetrospective analysisNew therapiesPatientsEnd point
2020
Rapid rise in the cost of targeted cancer therapies for Medicare patients with solid tumors from 2006 to 2015
Wilson LE, Greiner MA, Altomare I, Rotter J, Dinan MA. Rapid rise in the cost of targeted cancer therapies for Medicare patients with solid tumors from 2006 to 2015. Journal Of Geriatric Oncology 2020, 12: 375-380. PMID: 33250425, DOI: 10.1016/j.jgo.2020.11.007.Peer-Reviewed Original ResearchConceptsProstate cancerCancer costsLung cancerBreast cancerProportion of patientsSystemic anticancer therapyPart D enrollmentNew malignanciesPatients 65Systemic therapyMedicare 5Colorectal cancerInvasive lungMedicare patientsCohort analysisMedicare populationMedicare beneficiariesPatientsSolid tumorsTherapyCancerAnticancer therapyCancer therapyFinancial burdenLungReal-world systemic therapy utilization in Medicare patients with locally advanced or metastatic urothelial carcinoma diagnosed between 2008 and 2012
Dinan MA, Georgieva MV, Li Y, Zhang T, Harrison M, Shenolikar R, Scales CD. Real-world systemic therapy utilization in Medicare patients with locally advanced or metastatic urothelial carcinoma diagnosed between 2008 and 2012. Journal Of Geriatric Oncology 2020, 12: 298-304. PMID: 32912737, DOI: 10.1016/j.jgo.2020.08.005.Peer-Reviewed Original ResearchConceptsMetastatic urothelial carcinomaSecond-line chemotherapyUrothelial carcinomaOlder patientsSystemic therapyTreatment optionsMedicare patientsReal-world treatment patternsGrade IV diseaseAdvanced urothelial carcinomaSecond-line treatmentPoor oncologic outcomesYear of diagnosisUpper urinary tractLimited treatment optionsAcademic cancer centerSEER-Medicare dataForm of chemotherapyNon-academic centersDoublet chemotherapyPlatinum doubletsNeoadjuvant chemotherapyLine therapyOncologic outcomesRenal disease