FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2588901694> ?p ?o ?g. }

• W2588901694 endingPage "394" @default.
• W2588901694 startingPage "394" @default.
• W2588901694 abstract "Abstract Background: The hypomethylating agents (HMAs) azacitidine and decitabine were approved for treatment of myelodysplastic syndromes (MDS) in the United States (US) in 2004 and 2006, respectively, with demonstrated survival benefit for azacitidine among patients with higher risk MDS. Based on accumulating clinical and biologic evidence, chronic myelomonocytic Leukemia (CMML) has been reclassified as a clinical entity distinct from MDS. Despite a lack of evidence regarding a survival benefit associated with use of HMAs in CMML, HMAs are used for management of CMML in the US. Here, we take advantage of a natural experiment -market entry of HMAs- to assess whether HMA use is associated with survival among older adults with CMML. Methods: In a retrospective cohort study, we used the Surveillance, Epidemiology, and End Results (SEER- Medicare database to identify older adults (≥ 66 years in age) diagnosed with CMML (the International Classification of Diseases for Oncology 3rd edition histology 9945) in the 2001-2011 period, with follow-up through end of 2013. We identified HMA users based on procedure codes from claims, limiting to those who initiated therapy after their CMML diagnosis. We used Kaplan-Meier methods and log-rank test to analyze unadjusted survival. We used propensity score matching (PSM) method to match patients diagnosed during 2007-2011 who received HMAs (Post-HMA-users) with patients diagnosed in 2001-2003 who never received HMAs (Pre-HMA-non-users) during the study period. The covariates used for PSM included age at diagnosis, sex, race, zip code, education, neighborhood income, modified Elixhauser comorbidity count and disability status score (a claims-based surrogate for performance status), hospitalizations for bleeding or infection, and receipt of red blood cell and/or platelet transfusions prior to diagnosis. We did not match HMA users to HMA non-users in the post 2006 era to minimize impact of unobserved variables that might affect the decision to use HMAs. To test the competing hypothesis that survival improved as a result of other treatments/supportive care over the observation period, we also matched and compared CMML patients who never received HMAs in the pre-HMA and post-HMA periods. We used Cox proportional hazards models to assess the change in survival according to HMA use or time period. Results: A total of 1,868 individuals with CMML were eligible, of whom 1723 (92.2%) had died during follow-up. The median age at diagnosis was 79 years (interquartile range [IQR]: 73-84), 90.3% were white, and 60.7% were males. Median overall survival (OS) from diagnosis was 13 (95% confidence interval [CI]: 12-14) months. During follow-up, 259 patients (13.9%) received HMAs including 120 patients who received only azacitidine (6.4%), 81 who received only decitabine (4.3%), and 58 patients (3.1%) who received both drugs. Among those who received any HMA therapy, the median duration from diagnosis to first initiation of the HMA was 3 (IQR: 1-11) months. Only 18 patients (1%) underwent allogeneic stem cell transplantation (alloSCT) during follow-up. From diagnosis, the unadjusted median OS of patients who received any HMA during study was 22 (95% CI: 19-25) months compared to 11 (95% CI: 9-12) months for those who never received a HMA during study (p<.001). Among 180 Post-HMA-users and 328 Pre-HMA-non-users who were PS-matched, the median survival was 19 months in Post-HMA-users compared to 11 months in Pre-HMA-non-users (hazard ratio [HR] = 0.49, 95% CI: 0.38-0.64; p<.001, Figure 1). We also PS-matched 290 Pre-HMA-Non-users with 509 post-HMA-non-users and found that the two groups had similar mortality rates (HR = 1.06, 95% CI: 0.87-1.29; p=.55). Conclusions: In one of largest cohorts reported, we found that only a small percentage (14%) of older patients diagnosed with CMML received HMA therapy. Moreover, only 1% underwent alloSCT, the only potentially curative therapy. Our results suggest that use of HMA is associated with a 51% reduction in risk of death in CMML patients who received HMA after 2006 compared to propensity score matched patients who were diagnosed before 2004 and did not receive HMAs. The association is probably not attributable to potential improvement in other treatments/supportive care over the observation period. Our findings provide strong evidence for a survival benefit associated with the use of HMA in CMML. Figure 1 Figure 1. Disclosures Zeidan: Ariad: Consultancy, Honoraria; Celgene: Consultancy, Honoraria; Pfizer: Consultancy, Honoraria; Incyte: Consultancy, Honoraria. Huntington:Oncosec Medical: Equity Ownership; Celgene: Consultancy, Honoraria; Exelixis: Equity Ownership; Geron: Equity Ownership; Johnson & Johnson: Consultancy; Pharmacyclics: Honoraria. Podoltsev:Ariad: Consultancy, Honoraria; Incyte: Consultancy, Honoraria. Gore:Celgene: Research Funding. Ma:celgene: Consultancy, Honoraria. Davidoff:PhRMA: Research Funding." @default.
• W2588901694 created "2017-02-24" @default.
• W2588901694 creator A5003541635 @default.
• W2588901694 creator A5004483141 @default.
• W2588901694 creator A5015755664 @default.
• W2588901694 creator A5019575613 @default.
• W2588901694 creator A5035304428 @default.
• W2588901694 creator A5052920087 @default.
• W2588901694 creator A5067521829 @default.
• W2588901694 creator A5079943935 @default.
• W2588901694 creator A5090259653 @default.
• W2588901694 date "2016-12-02" @default.
• W2588901694 modified "2023-10-16" @default.
• W2588901694 title "Hypomethylating Agent Therapy and Survival Among Older Patients with Chronic Myelomonocytic Leukemia in the United States: A Large Population-Based Study" @default.
• W2588901694 doi "https://doi.org/10.1182/blood.v128.22.394.394" @default.
• W2588901694 hasPublicationYear "2016" @default.
• W2588901694 type Work @default.
• W2588901694 sameAs 2588901694 @default.
• W2588901694 citedByCount "0" @default.
• W2588901694 crossrefType "journal-article" @default.
• W2588901694 hasAuthorship W2588901694A5003541635 @default.
• W2588901694 hasAuthorship W2588901694A5004483141 @default.
• W2588901694 hasAuthorship W2588901694A5015755664 @default.
• W2588901694 hasAuthorship W2588901694A5019575613 @default.
• W2588901694 hasAuthorship W2588901694A5035304428 @default.
• W2588901694 hasAuthorship W2588901694A5052920087 @default.
• W2588901694 hasAuthorship W2588901694A5067521829 @default.
• W2588901694 hasAuthorship W2588901694A5079943935 @default.
• W2588901694 hasAuthorship W2588901694A5090259653 @default.
• W2588901694 hasConcept C104317684 @default.
• W2588901694 hasConcept C126322002 @default.
• W2588901694 hasConcept C143998085 @default.
• W2588901694 hasConcept C150194340 @default.
• W2588901694 hasConcept C167135981 @default.
• W2588901694 hasConcept C185592680 @default.
• W2588901694 hasConcept C190727270 @default.
• W2588901694 hasConcept C2776012956 @default.
• W2588901694 hasConcept C2776239401 @default.
• W2588901694 hasConcept C2777928532 @default.
• W2588901694 hasConcept C2780007613 @default.
• W2588901694 hasConcept C2780235182 @default.
• W2588901694 hasConcept C2780817109 @default.
• W2588901694 hasConcept C2908647359 @default.
• W2588901694 hasConcept C50382708 @default.
• W2588901694 hasConcept C55493867 @default.
• W2588901694 hasConcept C71924100 @default.
• W2588901694 hasConcept C99454951 @default.
• W2588901694 hasConceptScore W2588901694C104317684 @default.
• W2588901694 hasConceptScore W2588901694C126322002 @default.
• W2588901694 hasConceptScore W2588901694C143998085 @default.
• W2588901694 hasConceptScore W2588901694C150194340 @default.
• W2588901694 hasConceptScore W2588901694C167135981 @default.
• W2588901694 hasConceptScore W2588901694C185592680 @default.
• W2588901694 hasConceptScore W2588901694C190727270 @default.
• W2588901694 hasConceptScore W2588901694C2776012956 @default.
• W2588901694 hasConceptScore W2588901694C2776239401 @default.
• W2588901694 hasConceptScore W2588901694C2777928532 @default.
• W2588901694 hasConceptScore W2588901694C2780007613 @default.
• W2588901694 hasConceptScore W2588901694C2780235182 @default.
• W2588901694 hasConceptScore W2588901694C2780817109 @default.
• W2588901694 hasConceptScore W2588901694C2908647359 @default.
• W2588901694 hasConceptScore W2588901694C50382708 @default.
• W2588901694 hasConceptScore W2588901694C55493867 @default.
• W2588901694 hasConceptScore W2588901694C71924100 @default.
• W2588901694 hasConceptScore W2588901694C99454951 @default.
• W2588901694 hasIssue "22" @default.
• W2588901694 hasLocation W25889016941 @default.
• W2588901694 hasOpenAccess W2588901694 @default.
• W2588901694 hasPrimaryLocation W25889016941 @default.
• W2588901694 hasRelatedWork W1548768964 @default.
• W2588901694 hasRelatedWork W1974293265 @default.
• W2588901694 hasRelatedWork W2034160841 @default.
• W2588901694 hasRelatedWork W2127289529 @default.
• W2588901694 hasRelatedWork W2158794379 @default.
• W2588901694 hasRelatedWork W2498520464 @default.
• W2588901694 hasRelatedWork W2943259648 @default.
• W2588901694 hasRelatedWork W3138613027 @default.
• W2588901694 hasRelatedWork W3198571839 @default.
• W2588901694 hasRelatedWork W4296621011 @default.
• W2588901694 hasVolume "128" @default.
• W2588901694 isParatext "false" @default.
• W2588901694 isRetracted "false" @default.
• W2588901694 magId "2588901694" @default.
• W2588901694 workType "article" @default.