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 subgroup
2022
Microangiopathic Hemolytic Anemia Is a Late and Fatal Complication of Gastric Signet Ring Cell Carcinoma: A Systematic Review and Case-Control Study
Lam R, Tarangelo N, Wang R, Horibe M, Grimshaw AA, Jain D, Haffar S, Bazerbachi F, Kunz PL, Li DK. Microangiopathic Hemolytic Anemia Is a Late and Fatal Complication of Gastric Signet Ring Cell Carcinoma: A Systematic Review and Case-Control Study. The Oncologist 2022, 27: 751-759. PMID: 35589098, PMCID: PMC9438916, DOI: 10.1093/oncolo/oyac093.Peer-Reviewed Original ResearchConceptsGastric signet ring cell carcinomaSignet ring cell carcinomaMicroangiopathic hemolytic anemiaHemolytic anemiaCell carcinomaMultivariable Cox proportional hazards regression modelingCox proportional hazards regression modelingSystematic reviewRare paraneoplastic syndromeStage-matched casesEnd Results (SEER) databaseLate-stage complicationsRisk of mortalityCase-control studyBone painParaneoplastic syndromeFatal complicationMedian survivalMetastatic diseaseOverall survivalLymph nodesIndex presentationPrognostic featuresResults databasePooled cohortThe impact of race and ethnicity on outcomes of patients with myelodysplastic syndromes: a population-based analysis
Goksu SY, Ozer M, Goksu BB, Wang R, Khatib J, Patel PA, Vusirikala M, Cole S, Seyhanli A, Collins RH, Chung S, Zeidan AM, Madanat YF. The impact of race and ethnicity on outcomes of patients with myelodysplastic syndromes: a population-based analysis. Leukemia & Lymphoma 2022, 63: 1651-1659. PMID: 35133215, DOI: 10.1080/10428194.2022.2032034.Peer-Reviewed Original ResearchConceptsIncidence rate ratiosNon-Hispanic whitesMyelodysplastic syndromeRace/ethnicityNHB patientsNon-Hispanic blacksSurvival outcomesDisease characteristicsAge groupsHigher incidence rate ratioLower incidence rate ratiosOutcomes of patientsBetter overall survivalPopulation-based analysisAcute myeloid leukemiaNHW patientsAdult patientsOverall survivalSEER databaseClinical outcomesIncidence rateMyeloid leukemiaPatientsEthnic backgroundDisease risk
2020
Racial and Ethnic Disparities Have a Significant Impact on the Outcomes of Patients with Myelodysplastic Syndromes: A Population-Based Study
Goksu S, Khatib J, Goksu B, Wang R, Patel P, Vusirkala M, Cole S, Seyhanli A, Ozer M, Collins R, Chung S, Zeidan A, Madanat Y. Racial and Ethnic Disparities Have a Significant Impact on the Outcomes of Patients with Myelodysplastic Syndromes: A Population-Based Study. Blood 2020, 136: 2-3. DOI: 10.1182/blood-2020-140564.Peer-Reviewed Original ResearchNon-Hispanic blacksCause-specific survivalIncidence rate ratiosNon-Hispanic whitesCox proportional regression modelMedian overall survivalOutcomes of patientsNHB patientsMyelodysplastic syndromeNHW patientsHazard ratioHispanic patientsSurvival outcomesDisease characteristicsIncidence rateRace/ethnicityOverall survivalInsurance statusSurvival analysisAge groupsLonger median overall survivalLarge population-based analysisMultivariable Cox proportional regression modelsHigher incidence rate ratioEarlier population-based studiesChromosome 1 abnormalities and survival of patients with multiple myeloma in the era of novel agents
Giri S, Huntington SF, Wang R, Zeidan AM, Podoltsev N, Gore SD, Ma X, Gross CP, Davidoff AJ, Neparidze N. Chromosome 1 abnormalities and survival of patients with multiple myeloma in the era of novel agents. Blood Advances 2020, 4: 2245-2253. PMID: 32442299, PMCID: PMC7252537, DOI: 10.1182/bloodadvances.2019001425.Peer-Reviewed Original ResearchConceptsHigh-risk chromosomal abnormalitiesOverall survivalMultiple myelomaChromosome 1 abnormalitiesCox proportional hazards regression modelHigh-risk multiple myelomaProportional hazards regression modelsFlatiron Health databaseR-ISS stageMedian overall survivalFirst-line therapyDays of diagnosisInferior overall survivalInternational Staging SystemKaplan-Meier methodSurvival of patientsWorse overall survivalLog-rank testHazards regression modelsCommon genetic aberrationsElectronic health recordsEligible patientsContemporary cohortImmunomodulatory agentsStaging system
2019
Clinical 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 survivalClinical 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 coverageTemporal patterns and predictors of receiving no active treatment among older patients with acute myeloid leukemia in the United States: A population‐level analysis
Zeidan AM, Podoltsev NA, Wang X, Bewersdorf JP, Shallis RM, Huntington SF, Gore SD, Davidoff AJ, Ma X, Wang R. Temporal patterns and predictors of receiving no active treatment among older patients with acute myeloid leukemia in the United States: A population‐level analysis. Cancer 2019, 125: 4241-4251. PMID: 31483484, PMCID: PMC7733320, DOI: 10.1002/cncr.32439.Peer-Reviewed Original ResearchConceptsAcute myeloid leukemiaTime of diagnosisOlder patientsActive treatmentMyeloid leukemiaMultivariable logistic regression modelMedian overall survivalPercentage of patientsLow-intensity therapyMajority of patientsNovel therapeutic optionsQuality of careLogistic regression modelsIntensity therapyTherapy receiptOverall survivalWorse survivalClinical factorsInferior survivalEntire cohortTherapeutic optionsPatient populationRetrospective analysisHigher oddsProvider characteristicsChromosome 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 regimens
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 therapyUse of Statins, Survival and Incidence of Thrombosis Among Older Adults with Essential Thrombocythemia: A Population-Based Study
Podoltsev N, Zhu M, Wang R, Zeidan A, Wang X, Huntington S, Giri S, Davidoff A, Gore S, Ma X. Use of Statins, Survival and Incidence of Thrombosis Among Older Adults with Essential Thrombocythemia: A Population-Based Study. Blood 2018, 132: 4865. DOI: 10.1182/blood-2018-99-119118.Peer-Reviewed Original ResearchUse of statinsIncidence of thrombosisStatin usersLog-rank testRisk of thrombosisOverall survivalEssential thrombocythemiaET diagnosisPercentage of daysHydrophilic statinsOlder adultsET patientsMultivariate Cox proportional hazards modelLarge population-based cohort studyContinuous Medicare Parts APopulation-based cohort studyCox proportional hazards modelEnd Results-MedicareErythropoietin-independent erythroid colony formationBetter overall survivalKaplan-Meier curvesPopulation-based cohortEnd of studyProportional hazards modelPart DUse of Statins, Survival and Incidence of Thrombosis Among Older Adults with Polycythemia Vera: A Population-Based Study
Podoltsev N, Zhu M, Wang R, Zeidan A, Wang X, Davidoff A, Huntington S, Giri S, Gore S, Ma X. Use of Statins, Survival and Incidence of Thrombosis Among Older Adults with Polycythemia Vera: A Population-Based Study. Blood 2018, 132: 3580. DOI: 10.1182/blood-2018-99-119272.Peer-Reviewed Original ResearchStatin usersImpact of statinsLog-rank testRisk of thrombosisOverall survivalPercentage of daysPV patientsMyeloproliferative neoplasmsPV diagnosisMultivariate Cox proportional hazards modelContinuous Medicare Parts ACox proportional hazards modelCardiovascular risk factorsEnd Results-MedicareErythropoietin-independent erythroid colony formationBetter overall survivalKaplan-Meier curvesType of statinPopulation-based cohortNumber of phlebotomiesEnd of studyProportional hazards modelPart DMedicare Part AHealth maintenance organization
2017
Hypomethylating agent (HMA) therapy use and survival in older patients with higher risk myelodysplastic syndromes (HR-MDS) in the United States (USA): A large population-based study.
Zeidan A, Hu X, Long J, Wang R, Huntington S, Podoltsev N, Giri S, Stahl M, Gore S, Ma X, Davidoff A. Hypomethylating agent (HMA) therapy use and survival in older patients with higher risk myelodysplastic syndromes (HR-MDS) in the United States (USA): A large population-based study. Journal Of Clinical Oncology 2017, 35: 7057-7057. DOI: 10.1200/jco.2017.35.15_suppl.7057.Peer-Reviewed Original ResearchOverall survivalHR-MDSDiagnosis yearUS population-based analysisEnd Results-Medicare dataHigh-risk myelodysplastic syndromeLarge population-based studyConventional care regimensMedian overall survivalRetrospective cohort studyRisk myelodysplastic syndromesPopulation-based studyRecent registry dataPopulation-based analysisUse of decitabineAZA-001Unselected natureCohort studyConventional careExcess blastsOlder patientsTherapy usePatient selectionSurvival prolongationCare regimensPhysician volume and discontinuation of rituximab during lymphoma treatment.
Huntington S, Long J, Hoag J, Wang R, Zeidan A, Giri S, Gore S, Ma X, Gross C, Davidoff A. Physician volume and discontinuation of rituximab during lymphoma treatment. Journal Of Clinical Oncology 2017, 35: 6593-6593. DOI: 10.1200/jco.2017.35.15_suppl.6593.Peer-Reviewed Original ResearchNon-Hodgkin lymphomaEarly discontinuationRituximab discontinuationPhysician volumeProvider volumeEnd Results-Medicare dataB-cell non-Hodgkin lymphomaCell non-Hodgkin lymphomaCox proportional hazards modelDiscontinuation of rituximabSevere infusion reactionsRetrospective cohort studyImpact of discontinuationDays of initiationProportional hazards modelDose-dependent mannerRituximab cyclesRituximab initiationInfusion reactionsOverall survivalCohort studyPrimary outcomeSystemic treatmentLymphoma treatmentRelative risk
2016
Cost-Effectiveness Analysis of Consolidation with Brentuximab Vendotin Versus Active Surveillance in Individuals with High-Risk Hodgkin Lymphoma Undergoing High Dose Chemotherapy with Stem Cell Rescue
Hui L, von Keudell G, Wang R, Zeidan A, Gore S, Ma X, Davidoff A, Huntington S. Cost-Effectiveness Analysis of Consolidation with Brentuximab Vendotin Versus Active Surveillance in Individuals with High-Risk Hodgkin Lymphoma Undergoing High Dose Chemotherapy with Stem Cell Rescue. Blood 2016, 128: 1188. DOI: 10.1182/blood.v128.22.1188.1188.Peer-Reviewed Original ResearchAutologous stem cell transplantationReconstructed individual patient dataIncremental cost-effectiveness ratioR Hodgkin lymphomaIndividual patient dataHodgkin's lymphomaActive surveillanceOverall survivalHealth care costsHL progressionHL recurrenceHealthcare costsCare costsHigh-risk Hodgkin lymphomaSignificant health care costsDouble-blind trialPatient dataUse of BVFirst-line therapyHigh-dose chemotherapyPrimary refractory diseaseProgression-free survivalStem cell rescueLong-term followStem cell transplantation
2015
Lack of Association Between Costs of Care and Overall Survival (OS) Among Medicare Beneficiaries with Myelodysplastic Syndromes (MDS) in the United States (US)
Zeidan A, Wang R, Davidoff A, Gore S, Soulos P, Huntington S, Gross C, Ma X. Lack of Association Between Costs of Care and Overall Survival (OS) Among Medicare Beneficiaries with Myelodysplastic Syndromes (MDS) in the United States (US). Blood 2015, 126: 873. DOI: 10.1182/blood.v126.23.873.873.Peer-Reviewed Original ResearchDisability Status ScoreOverall survivalMyelodysplastic syndromeMDS patientsCost of careStudy cohortLack of associationHistologic subtypeStatus scoreMedicare beneficiariesEnd Results-Medicare databaseProportional hazards regression modelsOverall study cohortMedian overall survivalOutcomes of patientsElixhauser comorbidity scoreDate of diagnosisEntire study cohortKaplan-Meier methodHazards regression modelsDisease-related costsNon-white raceEnd of studyDate of deathMedicare Part A