2023
Second 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 myelofibrosis
2021
Contemporary practice patterns of tyrosine kinase inhibitor use among older patients with chronic myeloid leukemia in the United States
Shallis RM, Wang R, Bewersdorf JP, Zeidan AM, Davidoff AJ, Huntington SF, Podoltsev NA, Ma X. Contemporary practice patterns of tyrosine kinase inhibitor use among older patients with chronic myeloid leukemia in the United States. Therapeutic Advances In Hematology 2021, 12: 20406207211043404. PMID: 35154624, PMCID: PMC8832334, DOI: 10.1177/20406207211043404.Peer-Reviewed Original ResearchChronic phase chronic myeloid leukemiaFrontline tyrosine kinase inhibitorsTyrosine kinase inhibitorsOlder patientsChronic myeloid leukemiaTKI switchingMyeloid leukemiaSecond-generation tyrosine kinase inhibitorsBCR-ABL1 tyrosine kinase inhibitorsTyrosine kinase inhibitor useOlder CML patientsEnd Results-MedicareFavorable safety profileSpecific patient populationsContemporary practice patternsFrontline imatinibTKI choiceGreater comorbidityMost patientsInhibitor usePatient characteristicsWhite patientsDiagnosis yearTKI useCML patients
2018
Selection of patients with myelodysplastic syndromes from a large electronic medical records database and a study of the use of disease-modifying therapy in the United States
Ma X, Steensma DP, Scott BL, Kiselev P, Sugrue MM, Swern AS. Selection of patients with myelodysplastic syndromes from a large electronic medical records database and a study of the use of disease-modifying therapy in the United States. BMJ Open 2018, 8: e019955. PMID: 30037860, PMCID: PMC6059277, DOI: 10.1136/bmjopen-2017-019955.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAnemiaAzacitidineDatabases, FactualDecitabineElectronic Health RecordsEnzyme InhibitorsFemaleHematinicsHumansImmunologic FactorsIron Chelating AgentsLenalidomideMaleMiddle AgedMultivariate AnalysisMyelodysplastic SyndromesProportional Hazards ModelsRecurrenceRetrospective StudiesThalidomideTreatment OutcomeUnited StatesConceptsDisease-modifying therapiesErythropoiesis-stimulating agentsElectronic medical record databaseMyelodysplastic syndromeMedical record databasePatient characteristicsTreatment patternsGE Centricity Electronic Medical Records databaseRecord databaseLow baseline hemoglobin levelMultivariable Cox regression modelsLarge electronic medical record databaseBaseline hemoglobin levelAbsence of comorbiditiesFirst-line treatmentMajority of patientsSelection of patientsCox regression modelIron chelation therapyAgent azacitidineMore comorbiditiesHemoglobin levelsMale genderClinical trialsChelation therapy
2016
Myelodysplastic Syndromes and Acute Myeloid Leukemia After Radiotherapy for Prostate Cancer: A Population‐Based Study
Wang R, Zeidan AM, Yu JB, Soulos PR, Davidoff AJ, Gore SD, Huntington SF, Gross CP, Ma X. Myelodysplastic Syndromes and Acute Myeloid Leukemia After Radiotherapy for Prostate Cancer: A Population‐Based Study. The Prostate 2016, 77: 437-445. PMID: 27868212, PMCID: PMC5785924, DOI: 10.1002/pros.23281.Peer-Reviewed Original ResearchConceptsMDS/acute myeloid leukemiaAcute myeloid leukemiaProstate cancer patientsElderly prostate cancer patientsImpact of radiotherapyCancer patientsMyelodysplastic syndromeNational Cancer Institute's SurveillanceSubsequent myelodysplastic syndromeEnd Results-MedicareRetrospective cohort studyRole of radiotherapyInformed treatment decisionsUnderwent radiotherapyIMRT groupCohort studyPatient characteristicsMedian timeMyeloid leukemiaProstate cancerTreatment decisionsPatientsRadiotherapyMyeloid malignanciesSurgeryConnect MDS/AML: design of the myelodysplastic syndromes and acute myeloid leukemia disease registry, a prospective observational cohort study
Steensma DP, Abedi M, Bejar R, Cogle CR, Foucar K, Garcia-Manero G, George TI, Grinblatt D, Komrokji R, Ma X, Maciejewski J, Pollyea DA, Savona MR, Scott B, Sekeres MA, Thompson MA, Swern AS, Nifenecker M, Sugrue MM, Erba H. Connect MDS/AML: design of the myelodysplastic syndromes and acute myeloid leukemia disease registry, a prospective observational cohort study. BMC Cancer 2016, 16: 652. PMID: 27538433, PMCID: PMC4991094, DOI: 10.1186/s12885-016-2710-6.Peer-Reviewed Original ResearchConceptsAcute myeloid leukemiaObservational cohort studyDisease RegistryCohort studyClinical outcomesPatient-reported health-related qualityProspective observational cohort studyBaseline patient characteristicsHigh-risk MDSHealth-related qualityNon-interventional studyPatient-reported outcomesLower-risk MDSHealth economic outcomesMinimal diagnostic criteriaRoutine clinical settingNatural history studiesBackgroundMyelodysplastic syndromesPersistent cytopeniasOlder patientsPatient characteristicsTreatment patternsAlternate diagnosisCentral reviewMyelodysplastic syndrome
2014
Understanding Regional Variation in Medicare Expenditures for Initial Episodes of Prostate Cancer Care
Wang SY, Wang R, Yu JB, Ma X, Xu X, Kim SP, Soulos PR, Saraf A, Gross CP. Understanding Regional Variation in Medicare Expenditures for Initial Episodes of Prostate Cancer Care. Medical Care 2014, 52: 680-687. PMID: 25023913, PMCID: PMC4129645, DOI: 10.1097/mlr.0000000000000158.Peer-Reviewed Original ResearchConceptsAncillary proceduresPatient characteristicsTreatment modalitiesTreatment intensityEnd Results-Medicare databaseProstate cancer careSpecific treatment modalitiesContribution of patientHospital referral regionsInitial treatmentCancer careInitial episodeNoncancer controlsProstate cancerQuintile 5Referral regionsSubstantial geographic variationCare costsMedicare expendituresCostly modalityTreatment factorsMean expenditureLowest expenditure quintileSurgeryModalities
2010
Pattern of hypomethylating agents use among elderly patients with myelodysplastic syndromes
Wang R, Gross CP, Maggiore RJ, Halene S, Soulos PR, Raza A, Galili N, Ma X. Pattern of hypomethylating agents use among elderly patients with myelodysplastic syndromes. Leukemia Research 2010, 35: 904-908. PMID: 21067809, PMCID: PMC3114277, DOI: 10.1016/j.leukres.2010.10.007.Peer-Reviewed Original ResearchConceptsMyelodysplastic syndromePatient characteristicsRefractory anemiaMultivariate logistic regression modelMultiple patient characteristicsPopulation-based studyUse of HMAsLogistic regression modelsElderly patientsExcess blastsMultilineage dysplasiaRefractory cytopeniaMDS patientsPatientsComorbiditiesAnemiaSyndromeHigher chanceRegression modelsHMAsAgentsIntroduction periodCytopeniasDysplasiaCancer