2022
Changes in multiple myeloma treatment patterns during the early COVID-19 pandemic period
Neparidze N, Wang R, Zeidan AM, Podoltsev NA, Shallis RM, Ma X, Davidoff AJ, Huntington SF. Changes in multiple myeloma treatment patterns during the early COVID-19 pandemic period. Leukemia 2022, 36: 2136-2139. PMID: 35761025, PMCID: PMC9243711, DOI: 10.1038/s41375-022-01633-x.Peer-Reviewed Original Research
2023
Statin use, survival and incidence of thrombosis among older patients with polycythemia vera and essential thrombocythemia
Podoltsev N, Wang R, Shallis R, Stempel J, Di M, Neparidze N, Zeidan A, Huntington S, Giri S, Hull S, Gore S, Ma X. Statin use, survival and incidence of thrombosis among older patients with polycythemia vera and essential thrombocythemia. Cancer Medicine 2023, 12: 18889-18900. PMID: 37702132, PMCID: PMC10557879, DOI: 10.1002/cam4.6528.Peer-Reviewed Original ResearchConceptsIncidence of thrombosisPolycythemia veraEssential thrombocythemiaStatin useOlder adultsEnd Results-Medicare databasePopulation-based cohort studyArterial thrombotic eventsSurvival of patientsUse of statinsClaims-based studyRisk of thrombosisCardiovascular morbidityCause mortalityTreatment weighting (IPTW) approachCohort studyOlder patientsOverall survivalThrombotic eventsVenous thrombosisPatient populationPrevious registryStatinsTherapeutic strategiesET subgroupOlder patients with chronic myeloid leukemia face suboptimal molecular testing and tyrosine kinase inhibitor adherence
Shallis R, Wang R, Zeidan A, Huntington S, Neparidze N, Stempel J, Mendez L, Di M, Ma X, Podoltsev N. Older patients with chronic myeloid leukemia face suboptimal molecular testing and tyrosine kinase inhibitor adherence. Blood Advances 2023, 7: 3213-3224. PMID: 36939371, PMCID: PMC10338212, DOI: 10.1182/bloodadvances.2022009074.Peer-Reviewed Original ResearchConceptsChronic myeloid leukemiaTKI adherenceTKI initiationOlder patientsMyeloid leukemiaEnd Results-Medicare databaseTyrosine kinase inhibitor usePolymerase chain reaction testingQuantitative polymerase chain reaction testingOlder patient populationCare of patientsHealth care accessReal-world studyReal-world evidenceLow socioeconomic statusLow-income subsidyFirst yearInfluenza vaccinationInhibitor useWorse survivalTKI treatmentMultivariable analysisPatient populationOptimal monitoringCare accessSecond malignancies among older patients with classical myeloproliferative neoplasms treated with hydroxyurea
Wang R, Shallis R, Stempel JM, Huntington SF, Zeidan AM, Gore SD, Ma X, Podoltsev NA. Second malignancies among older patients with classical myeloproliferative neoplasms treated with hydroxyurea. Blood Advances 2023, 7: 734-743. PMID: 35917456, PMCID: PMC9989521, DOI: 10.1182/bloodadvances.2022008259.Peer-Reviewed Original ResearchConceptsSecond malignanciesAcute myeloid leukemiaOlder patientsMyelodysplastic syndromeMyeloproliferative neoplasmsHU usersHigh riskPolycythemia veraEssential thrombocythemiaRisk of SMAML/myelodysplastic syndromeClassical Philadelphia chromosome-negative myeloproliferative neoplasmsImpact of hydroxyureaRetrospective cohort studyUse of hydroxyureaPhiladelphia chromosome-negative myeloproliferative neoplasmsClassical myeloproliferative neoplasmsCumulative incidence probabilityCohort studyCytoreductive therapyPatient characteristicsMedian ageHU useMyeloid leukemiaSecondary myelofibrosisTreatment patterns and real-world effectiveness of rituximab maintenance in older patients with mantle cell lymphoma: a population-based analysis
Di M, Long J, Kothari S, Sethi T, Zeidan A, Podoltsev N, Shallis R, Wang R, Ma X, Huntington S. Treatment patterns and real-world effectiveness of rituximab maintenance in older patients with mantle cell lymphoma: a population-based analysis. Haematologica 2023, 108: 2218-2223. PMID: 36655436, PMCID: PMC10388284, DOI: 10.3324/haematol.2022.282252.Peer-Reviewed Original Research
2020
Clinical outcomes of older patients with AML receiving hypomethylating agents: a large population-based study in the United States
Zeidan AM, Wang R, Wang X, Shallis RM, Podoltsev NA, Bewersdorf JP, Huntington SF, Neparidze N, Giri S, Gore SD, Davidoff AJ, Ma X. Clinical outcomes of older patients with AML receiving hypomethylating agents: a large population-based study in the United States. Blood Advances 2020, 4: 2192-2201. PMID: 32433746, PMCID: PMC7252544, DOI: 10.1182/bloodadvances.2020001779.Peer-Reviewed Original ResearchConceptsAcute myeloid leukemiaDecitabine-treated patientsTransfusion independenceRed blood cell transfusion independenceLarge population-based studyOlder AML patientsRBC transfusion independenceEnd Results-MedicarePopulation-based studyStandard of careAgent azacitidineMedian survivalOlder patientsIntensive therapyAML patientsClinical outcomesClinical benefitMyeloid leukemiaMortality riskPatientsAzacitidineDecitabineOlder adultsOne-thirdMeaningful differencesPatterns of care and clinical outcomes with cytarabine-anthracycline induction chemotherapy for AML patients in the United States
Zeidan AM, Podoltsev NA, Wang X, Zhang C, Bewersdorf JP, Shallis RM, Huntington SF, Neparidze N, Giri S, Gore SD, Davidoff AJ, Ma X, Wang R. Patterns of care and clinical outcomes with cytarabine-anthracycline induction chemotherapy for AML patients in the United States. Blood Advances 2020, 4: 1615-1623. PMID: 32311013, PMCID: PMC7189301, DOI: 10.1182/bloodadvances.2020001728.Peer-Reviewed Original ResearchConceptsIntensive induction chemotherapyAcute myeloid leukemiaHospital deathInduction chemotherapyAdult patientsMultivariable logistic regression modelLow hospital volumePremier Healthcare DatabasePredictors of deathHealthcare resource utilizationIntensive care unitPatterns of careStandard of careLogistic regression modelsFit patientsRemission inductionFirst hospitalizationHospital volumeInpatient deathInpatient mortalityOlder patientsSupportive careMedian ageAML patientsCare unit
2019
Hypomethylating agent (HMA) therapy use and survival in older adults with Refractory Anemia with Excess Blasts (RAEB) in the United States (USA): a large propensity score-matched population-based study†
Davidoff AJ, Hu X, Bewersdorf JP, Wang R, Podoltsev NA, Huntington SF, Gore SD, Ma X, Zeidan AM. Hypomethylating agent (HMA) therapy use and survival in older adults with Refractory Anemia with Excess Blasts (RAEB) in the United States (USA): a large propensity score-matched population-based study†. Leukemia & Lymphoma 2019, 61: 1178-1187. PMID: 31878809, PMCID: PMC7735409, DOI: 10.1080/10428194.2019.1703970.Peer-Reviewed Original ResearchConceptsHigh-risk myelodysplastic syndromeExcess blastsRefractory anemiaOverall survival benefitRetrospective cohort studyMedian OSOS benefitRAEB patientsCohort studySurvival benefitTherapy useMyelodysplastic syndromeClinical trialsLower riskMedicare dataPatientsPropensity scoreOlder adultsDiagnosisAnemiaQuartileUnited StatesAssociationEnd resultOSThe Impact of the 2011 European Leukemianet (ELN) Guidelines for Philadelphia Chromosome-Negative Classical Myeloproliferative Neoplasms on Therapeutic Phlebotomy and Hydroxyurea Use in Patients with Polycythemia Vera and Essential Thrombocythemia
Podoltsev N, Wang R, Shallis R, Huntington S, Zeidan A, Gore S, Davidoff A, Ma X. The Impact of the 2011 European Leukemianet (ELN) Guidelines for Philadelphia Chromosome-Negative Classical Myeloproliferative Neoplasms on Therapeutic Phlebotomy and Hydroxyurea Use in Patients with Polycythemia Vera and Essential Thrombocythemia. Blood 2019, 134: 2125. DOI: 10.1182/blood-2019-127563.Peer-Reviewed Original ResearchTherapeutic phlebotomyPopulation-based cohortPV patientsELN guidelinesET patientsPolycythemia veraEssential thrombocythemiaGuideline publicationCelgene CorporationCytoreductive therapyHU useMonthly proportionBoehringer IngelheimLarge population-based cohortAdvisory CommitteeDaiichi SankyoOlder adultsEuropean LeukemiaNet guidelinesEnd Results-MedicareProportion of patientsHealthcare Common Procedure Coding System codesPopulation-based studyPatterns of careTreatment of patientsPart D claimsClinical Effectiveness of Hypomethylating Agents (HMAs) and Lenalidomide (Len) in Older Patients (pts) with Refractory Anemia with Ring Sideroblasts: A Large Population-Based Study in the United States (US)
Wang X, Wang R, Zhang C, Zeidan A, Podoltsev N, Huntington S, Gore S, Davidoff A, Ma X. Clinical Effectiveness of Hypomethylating Agents (HMAs) and Lenalidomide (Len) in Older Patients (pts) with Refractory Anemia with Ring Sideroblasts: A Large Population-Based Study in the United States (US). Blood 2019, 134: 4748. DOI: 10.1182/blood-2019-128821.Peer-Reviewed Original ResearchPopulation-based studyLR-MDSMedian overall survivalOverall survivalClinical effectivenessHypomethylating agentCelgene CorporationMedian durationRed blood cellsMedian timeRing sideroblastsBoehringer IngelheimAdvisory CommitteeLarge population-based studyDaiichi SankyoOlder adultsAbnormal erythroid precursorsTransfusion independence rateEnd Results-MedicareHigh-risk MDSErythropoiesis-stimulating agentsKaplan-Meier statisticsComparative clinical effectivenessEnd of studyPart D coverageIncidence and Risk Factors of Second Malignancies Among Medicare Beneficiaries with Newly-Diagnosed Philadelphia Chromosome-Negative Classical Myeloproliferative Neoplasms Receiving Cytoreductive Therapy with Hydroxyurea
Wang R, Shallis R, Huntington S, Zeidan A, Gore S, Davidoff A, Ma X, Podoltsev N. Incidence and Risk Factors of Second Malignancies Among Medicare Beneficiaries with Newly-Diagnosed Philadelphia Chromosome-Negative Classical Myeloproliferative Neoplasms Receiving Cytoreductive Therapy with Hydroxyurea. Blood 2019, 134: 330. DOI: 10.1182/blood-2019-127568.Peer-Reviewed Original ResearchMyeloid hematological malignanciesHU usersPopulation-based studyHematological malignanciesCumulative incidenceCelgene CorporationMPN diagnosisCytoreductive therapySolid malignanciesGray's testPolycythemia veraMPN patientsEssential thrombocythemiaContinuous Part D coverageBoehringer IngelheimAdvisory CommitteeLarge population-based studyDaiichi SankyoImpact of hydroxyureaRetrospective cohort studyElixhauser comorbidity scorePV/ET myelofibrosisRisk regression modelsSAS version 9.4Part D coverageClinical Outcomes of Older Patients (pts) with Acute Myeloid Leukemia (AML) Receiving Hypomethylating Agents (HMAs): A Large Population-Based Study in the United States
Zeidan A, Wang R, Wang X, Shallis R, Podoltsev N, Bewersdorf J, Huntington S, Neparidze N, Giri S, Gore S, Davidoff A, Ma X. Clinical Outcomes of Older Patients (pts) with Acute Myeloid Leukemia (AML) Receiving Hypomethylating Agents (HMAs): A Large Population-Based Study in the United States. Blood 2019, 134: 646. DOI: 10.1182/blood-2019-127398.Peer-Reviewed Original ResearchRBC transfusion dependenceAcute myeloid leukemiaMedian overall survivalTransfusion independenceOverall survivalTransfusion dependenceHypomethylating agentCelgene CorporationHMA initiationIntensive chemotherapyOS probabilityMedian timeMultivariable analysisMultivariable Cox proportional hazards modelsBoehringer IngelheimAdvisory CommitteeCox proportional hazards modelDaiichi SankyoChemotherapy-related hospitalizationMo of diagnosisRBC transfusion independenceImproved overall survivalClinical trial evidenceInferior overall survivalWorse overall survivalPatterns of Care and Clinical Outcomes with 7+3 Induction Chemotherapy for Patients (pts) with Acute Myeloid Leukemia (AML) in the United States (US): A Large Population-Based Study
Zeidan A, Podoltsev N, Wang X, Bewersdorf J, Shallis R, Huntington S, Neparidze N, Giri S, Gore S, Ma X, Davidoff A, Wang R. Patterns of Care and Clinical Outcomes with 7+3 Induction Chemotherapy for Patients (pts) with Acute Myeloid Leukemia (AML) in the United States (US): A Large Population-Based Study. Blood 2019, 134: 116. DOI: 10.1182/blood-2019-126643.Peer-Reviewed Original ResearchBone marrow aspirate/biopsyHigh-volume hospitalsAcute myeloid leukemiaMedium-volume hospitalsAML ptsInduction chemotherapyIntensive care unitAnti-infective medicationsAnti-viral medicationInpatient stayCelgene CorporationAntifungal prophylaxisHospital deathVolume hospitalsHospital volumeMechanical ventilationLarge population-based retrospective cohort studyPopulation-based retrospective cohort studyCytarabine-based induction chemotherapyBoehringer IngelheimAdvisory CommitteeLarge population-based studyDaiichi SankyoInduction-related mortalityMedium-volume institutionsAssociation of provider experience and clinical outcomes in patients with myelodysplastic syndromes receiving hypomethylating agents
Zeidan AM, Hu X, Zhu W, Stahl M, Wang R, Huntington SF, Giri S, Bewersdorf JP, Podoltsev NA, Gore SD, Ma X, Davidoff AJ. Association of provider experience and clinical outcomes in patients with myelodysplastic syndromes receiving hypomethylating agents. Leukemia & Lymphoma 2019, 61: 397-408. PMID: 31570040, PMCID: PMC7732188, DOI: 10.1080/10428194.2019.1663423.Peer-Reviewed Original ResearchConceptsMyelodysplastic syndromeOverall survivalHMA cyclesHMA therapyProvider experienceCox proportional hazards modelOlder MDS patientsMedian overall survivalPercent of patientsSEER-Medicare dataMultivariate logistic regressionProportional hazards modelHMA initiationClinical outcomesMDS patientsClinical trialsMedian numberHMA treatmentHazards modelPatientsSignificant associationLogistic regressionPopulation-level survivalSurvivalSyndromeUnderutilization of guideline‐recommended supportive care among older adults with multiple myeloma in the United States
Giri S, Zhu W, Wang R, Zeidan A, Podoltsev N, Gore SD, Neparidze N, Ma X, Gross CP, Davidoff AJ, Huntington SF. Underutilization of guideline‐recommended supportive care among older adults with multiple myeloma in the United States. Cancer 2019, 125: 4084-4095. PMID: 31381151, DOI: 10.1002/cncr.32428.Peer-Reviewed Original ResearchConceptsBone-modifying drugsSupportive careMultiple myelomaInfluenza vaccinationAntiviral prophylaxisOlder adultsLower oddsEnd Results-Medicare databaseNon-Hispanic black patientsMultivariable logistic regression modelBaseline renal impairmentSupportive care useTreatment-related toxicityFacility-level characteristicsNon-Hispanic blacksOutcomes of interestCommunity-based settingsLogistic regression modelsRenal impairmentActive treatmentBlack patientsCare useConcomitant useProphylactic antiviralsReduced oddsRBC transfusion independence among lower risk MDS patients receiving hypomethylating agents: a population-level analysis
Zeidan AM, Zhu W, Stahl M, Wang R, Huntington SF, Giri S, Podoltsev NA, Gore SD, Ma X, Davidoff AJ. RBC transfusion independence among lower risk MDS patients receiving hypomethylating agents: a population-level analysis. Leukemia & Lymphoma 2019, 60: 3181-3187. PMID: 31170846, DOI: 10.1080/10428194.2019.1622700.Peer-Reviewed Original ResearchConceptsRBC transfusion independenceLR-MDS patientsTransfusion independenceHMA initiationRBC transfusionClinical effectivenessReal-life clinical effectivenessRed blood cell transfusionLower-risk myelodysplastic syndromesLow-risk MDS patientsRisk MDS patientsBlood cell transfusionRisk myelodysplastic syndromesHMA therapyLR-MDSCell transfusionMost patientsDisease courseMDS patientsMedicare databaseMyelodysplastic syndromePopulation-level estimatesLower oddsTransfusionPatientsChromosome 1 abnormalities and clinical outcomes in multiple myeloma in the era of novel agents.
Giri S, Huntington S, Wang R, Zeidan A, Podoltsev N, Gore S, Ma X, Gross C, Davidoff A, Neparidze N. Chromosome 1 abnormalities and clinical outcomes in multiple myeloma in the era of novel agents. Journal Of Clinical Oncology 2019, 37: 8044-8044. DOI: 10.1200/jco.2019.37.15_suppl.8044.Peer-Reviewed Original ResearchOverall survivalMultiple myelomaPerformance statusMultivariable Cox survival analysisMedian overall survivalPoor performance statusLines of therapyKaplan-Meier methodCox regression analysisDays of diagnosisWorse overall survivalCox survival analysisLog-rank testReal-world treatmentCommon genetic mutationsHigh-risk mutationsSitu hybridization testingElectronic health recordsISS stageReal-world practiceMedian ageMeier methodOS independentPrimary outcomeSpecific regimensEpidemiology of acute myeloid leukemia: Recent progress and enduring challenges
Shallis RM, Wang R, Davidoff A, Ma X, Zeidan AM. Epidemiology of acute myeloid leukemia: Recent progress and enduring challenges. Blood Reviews 2019, 36: 70-87. PMID: 31101526, DOI: 10.1016/j.blre.2019.04.005.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsAcute myeloid leukemiaPatient outcomesMyeloid leukemiaAllogeneic stem cell transplantationEtiology of AMLMinority of patientsStem cell transplantationAge-adjusted incidenceMost older individualsMyeloid progenitor cellsIntensive chemotherapyActive therapyClear etiologyOlder patientsRefractory diseaseSupportive careCurative therapyMedian agePoor prognosisShorter survivalCell transplantationDisease characteristicsEnvironmental DNA-damaging agentsMalignant disordersTherapeutic advancesImpact of Hydroxyurea on Survival and Risk of Thrombosis Among Older Patients With Essential Thrombocythemia.
Podoltsev NA, Zhu M, Zeidan AM, Wang R, Wang X, Davidoff AJ, Huntington SF, Giri S, Gore SD, Ma X. Impact of Hydroxyurea on Survival and Risk of Thrombosis Among Older Patients With Essential Thrombocythemia. Journal Of The National Comprehensive Cancer Network 2019, 17: 211-219. PMID: 30865915, DOI: 10.6004/jnccn.2018.7095.Peer-Reviewed Original ResearchConceptsImpact of hydroxyureaThrombotic eventsEssential thrombocythemiaEffect of hydroxyureaOlder patientsOverall survivalLower riskMultivariable Cox proportional hazards regression modelsCox proportional hazards regression modelHigh-risk essential thrombocythemiaProportional hazards regression modelsRetrospective cohort studyRisk of deathSEER-Medicare databaseHazards regression modelsRisk of thrombosisHU usersFrontline therapyCohort studyCurrent guidelinesStudy populationPatientsReal-world settingThrombosisOlder adults
2018
Does Provider Experience Treating Patients (pts) with Myelodysplastic Syndromes (MDS) Explain Duration of Hypomethylating Agent (HMA) Therapy and Overall Survival (OS)? A Large Population-Based Analysis
Zeidan A, Hu X, Zhu W, Stahl M, Giri S, Huntington S, Wang R, Podoltsev N, Gore S, Ma X, Davidoff A. Does Provider Experience Treating Patients (pts) with Myelodysplastic Syndromes (MDS) Explain Duration of Hypomethylating Agent (HMA) Therapy and Overall Survival (OS)? A Large Population-Based Analysis. Blood 2018, 132: 370. DOI: 10.1182/blood-2018-99-111052.Peer-Reviewed Original ResearchHMA cyclesOverall survivalHMA initiationHMA therapyMyelodysplastic syndromeProvider typeCancer CenterMD volumeMultivariate Cox proportional hazardsKaplan-Meier log-rank testAZA-001 trialMedian overall survivalTwo-sided statistical testsLog-rank testReal-world survivalCox proportional hazardsLogistic regression analysisWilcoxon rank sum testChi-square testCommunity-based practiceRank sum testEligible ptsLookback periodEarly discontinuationAgent therapy