2024
Changes in Facility Share of Medicaid-insured Patients With Urologic Cancers Following Implementation of the Patient Protection and Affordable Care Act
Demkowicz P, Buck M, Nie J, Marks V, Wheeler S, Dinan M, Gross C, Leapman M. Changes in Facility Share of Medicaid-insured Patients With Urologic Cancers Following Implementation of the Patient Protection and Affordable Care Act. Urology 2024, 192: 19-27. PMID: 38901803, DOI: 10.1016/j.urology.2024.06.003.Peer-Reviewed Original ResearchFacility-level changesAffordable Care ActNon-expansion statesUrological cancer patientsProportion of patientsExpansion statesBaseline proportion of patientsUrologic cancer careHigh-income zip codesCancer patientsFactors associated with changesPre-post designCancer care centerPost-ACA periodMedicaid expansion statesMultivariate logistic regressionMedicaid-insured patientsCancer careUrological cancersZip codesCare ActMedicaid patientsMedicaidLogistic regressionCare centerTemporal and regional patterns of prostate cancer positron emission tomography imaging among commercial insurance beneficiaries in the United States.
Leapman M, Long J, Westvold S, Rabil M, Sprenkle P, Kim I, Saperstein L, Fallah J, Suzman D, Lerro C, Xu J, Kluetz P, Karnes R, Kunst N, Wang S, Ma X, Gross C. Temporal and regional patterns of prostate cancer positron emission tomography imaging among commercial insurance beneficiaries in the United States. Journal Of Clinical Oncology 2024, 42: 34-34. DOI: 10.1200/jco.2024.42.4_suppl.34.Peer-Reviewed Original ResearchProportion of patientsProstate cancerPSMA-PETPET imagingProstate specific membrane antigen positron emission tomographyDiagnosis of prostate cancerProstate cancer visualizationPSMA PET imagingPSMA-targeted agentsPositron emission tomography imagingCochran-Armitage testDynamic cohort studyPositron emission tomographyCommercial insurance beneficiariesEmission tomography imagingChi-square testCancer visualizationCholine tracersCohort studyProstateTreatment decisionsBlue Cross Blue Shield AxisCochran-ArmitageEmission tomographyInsurance beneficiaries
2022
Distribution of NCCN risk classifications using MRI-ultrasound fusion versus systematic 12 core biopsies.
Khajir G, Press B, Levi A, Sprenkle P, Leapman M. Distribution of NCCN risk classifications using MRI-ultrasound fusion versus systematic 12 core biopsies. Journal Of Clinical Oncology 2022, 40: 283-283. DOI: 10.1200/jco.2022.40.6_suppl.283.Peer-Reviewed Original ResearchMRI-ultrasound fusion biopsyNCCN risk classificationMRI-ultrasound fusionFusion biopsyLower riskActive surveillanceNCCN riskSystematic biopsyCore biopsyRisk classificationFirst-time biopsyInitial active surveillanceProportion of patientsMajority of patientsEra of MRIPrimary study objectiveProstate cancer risk classificationNCCN definitionsMedian PSASurveillance biopsiesBiopsy cohortRetrospective studySingle institutionProstate cancerBiopsy
2021
Change in facility-level share of Medicaid patients with cancer following implementation of the affordable care act.
Buck M, Demkowicz P, Nie J, Marks V, Salazar M, Kenney P, Boffa D, Leapman M. Change in facility-level share of Medicaid patients with cancer following implementation of the affordable care act. Journal Of Clinical Oncology 2021, 39: e18543-e18543. DOI: 10.1200/jco.2021.39.15_suppl.e18543.Peer-Reviewed Original ResearchProportion of MedicaidAffordable Care ActMedicaid patientsMedicaid expansionFacility-level changesFacility-level policiesNational Cancer DatabasePrimary study endpointProportion of patientsInsurance coverageMultivariable logistic regressionExpansion statesCare ActFacility-level factorsMedicaid expansion statesNon-expansion statesAdult patientsStudy endpointAdjusted differenceCancer DatabaseMedicaid populationEligible facilitiesPatientsCancerLogistic regression
2019
Real-world practice patterns and impact of PD-L1 expression testing in patients with advanced non-small cell lung cancer.
Leapman M, Presley C, Zhu W, Soulos P, Adelson K, Boffa D, Gross C. Real-world practice patterns and impact of PD-L1 expression testing in patients with advanced non-small cell lung cancer. Journal Of Clinical Oncology 2019, 37: 9059-9059. DOI: 10.1200/jco.2019.37.15_suppl.9059.Peer-Reviewed Original ResearchAdvanced non-small cell lung cancerPD-L1 expression testingFirst-line therapyNon-small cell lung cancerPD-L1 expressionPD-L1 testingCell lung cancerLung cancerFlatiron Health electronic health record-derived databaseElectronic health record-derived databaseCell death ligand 1 (PD-L1) expressionFDA approvalDeath ligand 1 (PD-L1) expressionReal-world practice patternsFirst-line treatmentLigand 1 expressionProportion of patientsMonths of diagnosisReal-world careMultivariable logistic regressionCommunity oncology practicesCompanion diagnostic testingExpression testingIdentifiable driver mutationsLine treatmentClinical risk-based associations of lymph node dissection and detection of metastasis among men treated with radical prostatectomy.
Abello A, Kenney P, Leapman M. Clinical risk-based associations of lymph node dissection and detection of metastasis among men treated with radical prostatectomy. Journal Of Clinical Oncology 2019, 37: 284-284. DOI: 10.1200/jco.2019.37.7_suppl.284.Peer-Reviewed Original ResearchPelvic lymph node dissectionLymph node countLymph node dissectionLymph node yieldRadical prostatectomyRisk strataNode dissectionNode yieldProstate Risk Assessment (CAPRA) scoreConditional logistic regression modelsRisk statusNational Cancer DatabaseHigh-risk patientsLymph node involvementProportion of patientsGroup of patientsLymph node metastasisDetection of metastasesCancer detection rateClinical risk statusRisk assessment scoreNode countLogistic regression modelsNode involvementPathologic factors
2018
Outcomes of serial MRI/ultrasound fusion targeted biopsy in men with very low-risk and low-risk prostate cancer managed with active surveillance.
Hsiang W, Ghabili K, Syed J, Nguyen K, Suarez-Sarmiento A, Leapman M, Sprenkle P. Outcomes of serial MRI/ultrasound fusion targeted biopsy in men with very low-risk and low-risk prostate cancer managed with active surveillance. Journal Of Clinical Oncology 2018, 36: 114-114. DOI: 10.1200/jco.2018.36.6_suppl.114.Peer-Reviewed Original ResearchMRI/US fusion biopsyLow-risk prostate cancerNational Comprehensive Cancer NetworkFusion biopsyActive surveillanceSystematic biopsyProstate cancerGleason upgradeMagnetic resonance imagingPSA densitySubsequent biopsyFavorable-risk prostate cancerMRI/ultrasound fusionSerial magnetic resonance imagingProportion of patientsRisk prostate cancerComprehensive Cancer NetworkLow-risk criteriaRisk of reclassificationLogistic regression modelsBiopsy upgradeMedian PSAGleason scoreHigher PSAInstitutional database