6533b7d1fe1ef96bd125cdf2

RESEARCH PRODUCT

Impact of BCR-ABL1 Transcript Type on Response, Treatment-Free Remission Rate and Survival in Chronic Myeloid Leukemia Patients Treated with Imatinib

Sílvia MarcéBlanca XicoyOlga GarcíaMarta CabezónNatalia EstradaPatricia VélezConcepción BoquéMiguel SagüésAnna AngonaRaúl Teruel MontoyaFrancisca Ferrer MarínPaula AmatJuan Carlos Hernández BoludaMariana IbarraEduardo AnguitaMontserrat CortésAndrés Fernández RuizSandra FontanalsLurdes ZamoraGrupo Español De Leucemia Mieloide Crónica (Gelmc)

subject

Oncologymedicine.medical_specialtyrelapse-free survivalLeucèmia mieloide<i>BCR</i><i>-ABL1</i> transcriptsLeucèmia mieloide crònica:Organic Chemicals::Amides::Benzamides::Imatinib Mesylate [CHEMICALS AND DRUGS]survivalArticleOncología:Neoplasms::Neoplasms by Histologic Type::Leukemia::Leukemia Myeloid::Leukemia Myelogenous Chronic BCR-ABL Positive [DISEASES]03 medical and health sciencesBcr abl10302 clinical medicineAnàlisi de supervivència (Biometria)chronic myeloid leukemiaInternal medicinehemic and lymphatic diseasesresponse to imatinibmedicineOverall survivalHematologíaCumulative incidenceBCR-ABL1 transcriptsGene transcriptbusiness.industryRMyeloid leukemiaImatinibGeneral MedicineExpressió gènica:técnicas de investigación::métodos epidemiológicos::estadística como asunto::análisis de supervivencia [TÉCNICAS Y EQUIPOS ANALÍTICOS DIAGNÓSTICOS Y TERAPÉUTICOS]Myeloid leukemia030220 oncology & carcinogenesisMolecular ResponseImatinib:compuestos orgánicos::amidas::benzamidas::mesilato de imatinib [COMPUESTOS QUÍMICOS Y DROGAS]MedicineRemission rateGene expression:Health Care Quality Access and Evaluation::Quality of Health Care::Health Care Evaluation Mechanisms::Statistics as Topic::Survival Analysis [HEALTH CARE]business:neoplasias::neoplasias por tipo histológico::leucemia::leucemia mieloide::leucemia mielogenosa crónica BCR-ABL positiva [ENFERMEDADES]030215 immunologymedicine.drugdiscontinuation

description

Chronic myeloid leukemia; BCR-ABL1 transcripts; Response to imatinib Leucemia mieloide crónica; Transcripciones de BCR-ABL1; Respuesta al imatinib Leucèmia mieloide crònica; Transcripcions BCR-ABL1; Resposta a imatinib The most frequent BCR-ABL1-p210 transcripts in chronic myeloid leukemia (CML) are e14a2 and e13a2. Imatinib (IM) is the most common first-line tyrosine–kinase inhibitor (TKI) used to treat CML. Some studies suggest that BCR-ABL1 transcript types confer different responses to IM. The objective of this study was to correlate the expression of e14a2 or e13a2 to clinical characteristics, cumulative cytogenetic and molecular responses to IM, acquisition of deep molecular response (DMR) and its duration (sDMR), progression rate (CIP), overall survival (OS), and treatment-free remission (TFR) rate. We studied 202 CML patients, 76 expressing the e13a2 and 126 the e14a2, and correlated the differential transcript expression with the above-mentioned parameters. There were no differences in the cumulative incidence of cytogenetic responses nor in the acquisition of DMR and sDMR between the two groups, but the e14a2 transcript had a positive impact on molecular response during the first 6 months, whereas the e13a2 was associated with improved long-term OS. No correlation was observed between the transcript type and TFR rate.

yearjournalcountryeditionlanguage
2021-07-16
10.3390/jcm10143146http://hdl.handle.net/2445/179808