Observational studyAnnals of hematology2024
Understanding factors limiting hematopoietic cell transplantation for acute myeloid leukemia patients in Mexico: a comprehensive analysis.
Observational study in Annals of hematology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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Authors and funding
25 authors.
Funding
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Abstract
Acute myeloid leukemia (AML) is the most frequent indication for allogeneic hematopoietic cell transplantation (alloHCT) worldwide; social and health system barriers limit its access. We performed an observational retrospective analysis in Mexico to analyze factors limiting alloHCT in fit patients with AML. With a median follow-up of 11.8 months, 301 patients were included, with a median age of 42; 33.5% were classified as adverse risk. Despite 215 patients (92.5%) achieving complete remission, only 103 (34%) had HLA-typing: 44.5% had a matched-sibling donor (MSD), 32% a haploidentical donor, and 23.5% had no donor. Only 23.5% of patients had an HCT consult; merely 36 underwent an HCT: 30 alloHCT, and six an autologous HCT. Age ≥ 60 years, HCT-CI score ≥ three, and the absence of a local transplant program negatively influenced HLA typing likelihood. Patients with an MSD had a higher alloHCT likelihood. The cumulative incidence of transplant (CIT) and relapse (CIR) at 6 and 12 months was 7.3% and 13.8%, 8.2% and 13%, respectively. A lack of HLA-typing was associated with a lower CIT (p < 0.001) and higher CIR (p = 0.033) (HR 11.72, CI 95% 4.39-31.27, p < 0.001), while the presence of an MSD was associated with a higher CIT (p = 0.002) (HR 4.22, CI 95% 1.89-9.44, p < 0.001). The main reasons hindering alloHCT are the lack of access to HLA-typing tests and the absence of an MSD. A national donor registry and improved HLA-typing accessibility are critical for increasing alloHCT access in Mexico.
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