2021
Clinical effectiveness of DNA methyltransferase inhibitors and lenalidomide in older patients with refractory anemia with ring sideroblasts: a population-based study in the United States
Wang X, Zeidan AM, Wang R, Bewersdorf JP, Zhang C, Podoltsev NA, Huntington SF, Gore SD, Ma X. Clinical effectiveness of DNA methyltransferase inhibitors and lenalidomide in older patients with refractory anemia with ring sideroblasts: a population-based study in the United States. Leukemia & Lymphoma 2021, 62: 2438-2447. PMID: 33899659, DOI: 10.1080/10428194.2021.1913142.Peer-Reviewed Original ResearchConceptsPopulation-based studyDNA methyltransferase inhibitorRARS patientsRefractory anemiaRing sideroblastsRed blood cell transfusion independenceEnd Results-Medicare databaseLower-risk myelodysplastic syndromesPopulation-based cohortMethyltransferase inhibitorRBC-TIMedian durationMedian survivalOlder patientsTransfusion independenceTreatment initiationMyelodysplastic syndromeClinical effectivenessBetter survivalLenalidomideTreatment groupsPatientsRS statusOlder adultsAnemiaPatterns of Care for Older Patients With Myelofibrosis: A Population-based Study
Meckstroth S, Wang R, Ma X, Podoltsev N. Patterns of Care for Older Patients With Myelofibrosis: A Population-based Study. Clinical Lymphoma Myeloma & Leukemia 2021, 21: e551-e558. PMID: 33648884, DOI: 10.1016/j.clml.2021.01.025.Peer-Reviewed Original ResearchConceptsPatterns of careOlder patientsEnd Results-Medicare databaseJAK inhibitor eraHigh-risk patientsPopulation-based studyUse of ruxolitinibJAK inhibitor ruxolitinibUnited States FoodRuxolitinib approvalMedian ageMedian timeTreatment patternsD claimsCurrent treatmentInhibitor ruxolitinibPatientsBetter outcomesClinical experienceDrug AdministrationMedicare Part BMyelofibrosisRuxolitinibStates FoodNew drugs
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 differences
2019
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
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 coverage
2018
The impact of phlebotomy and hydroxyurea on survival and risk of thrombosis among older patients with polycythemia vera
Podoltsev NA, Zhu M, Zeidan AM, Wang R, Wang X, Davidoff AJ, Huntington SF, Giri S, Gore SD, Ma X. The impact of phlebotomy and hydroxyurea on survival and risk of thrombosis among older patients with polycythemia vera. Blood Advances 2018, 2: 2681-2690. PMID: 30333100, PMCID: PMC6199652, DOI: 10.1182/bloodadvances.2018021436.Peer-Reviewed Original ResearchConceptsRisk of thrombosisPV patientsOverall survivalThrombotic eventsMultivariable Cox proportional hazards modelsEnd Results-Medicare databaseHigh-risk PV patientsCox proportional hazards modelOlder adultsImpact of phlebotomyRetrospective cohort studyPopulation-based studyProportional hazards modelEffect of phlebotomyOutcomes of interestPolycythemia vera patientsContemporary clinical practiceImproved OSCohort studyCytoreductive therapyOlder patientsTherapeutic phlebotomyTreatment modalitiesCurrent guidelinesLower risk
2017
Risk of myeloid neoplasms after radiotherapy among older women with localized breast cancer: A population-based study
Zeidan AM, Long JB, Wang R, Hu X, Yu JB, Huntington SF, Abel GA, Mougalian SS, Podoltsev NA, Gore SD, Gross CP, Ma X, Davidoff AJ. Risk of myeloid neoplasms after radiotherapy among older women with localized breast cancer: A population-based study. PLOS ONE 2017, 12: e0184747. PMID: 28902882, PMCID: PMC5597231, DOI: 10.1371/journal.pone.0184747.Peer-Reviewed Original ResearchConceptsBreast cancer survivorsMyeloid neoplasmsCancer survivorsBreast cancerOlder womenOlder breast cancer survivorsTherapy-related myeloid neoplasmsCompeting-risks survival analysisAbsolute risk increaseBenefits of radiotherapyPopulation-based studyAbsence of chemotherapyRisk of developmentMultiple sensitivity analysesEligible patientsSubsequent chemotherapyAdjuvant radiotherapyLocalized diseaseCumulative incidenceInitial treatmentSEER registryPoor outcomeTreatment recommendationsMedicare claimsMN diagnosisHypomethylating 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 regimens
2012
Incidence and Outcomes for Low Risk Myelodysplastic Syndrome: A Surveillance, Epidemiology and End Results (SEER) Study
Zhang Y, Podoltsev N, Rothberg BE, Dhodapkar M, Morgensztern D. Incidence and Outcomes for Low Risk Myelodysplastic Syndrome: A Surveillance, Epidemiology and End Results (SEER) Study. Blood 2012, 120: 4944. DOI: 10.1182/blood.v120.21.4944.4944.Peer-Reviewed Original ResearchDisease-specific survivalLow-grade myelodysplastic syndromesRefractory anemiaMyelodysplastic syndromeOverall survivalAcute leukemiaIncidence rateStudy warrant further evaluationLower-risk myelodysplastic syndromesLarge population-based studyMultivariable hazard ratiosRisk myelodysplastic syndromesEnd Results (SEER) databaseKaplan-Meier methodPopulation-based studyEnd-result studyCox proportional hazardsWarrants further evaluationCause of deathAdditional genetic abnormalitiesHazard ratioMultilineage dysplasiaRefractory cytopeniaCentral cancerMultivariable analysis