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Five-year follow-up of patients treated with imatinib mesylate for chronic myeloid leukaemia in Trinidad and Tobago / Pacientes con cinco años de seguimiento tratados con imatinib mesilato por leucemia mieloide crónica en Trinidad y Tobago
Charles, KS; Ramon, L; Leelah, N; Oluwabusi, TAA; Seemungal, T.
Afiliação
  • Charles, KS; University of the West Indies. Faculty of Medical Sciences. Department of Paraclinical Sciences. St Augustine. TT
  • Ramon, L; University of the West Indies. Faculty of Medical Sciences. Department of Paraclinical Sciences. St Augustine. TT
  • Leelah, N; University of the West Indies. Faculty of Medical Sciences. Department of Paraclinical Sciences. St Augustine. TT
  • Oluwabusi, TAA; University of the West Indies. Faculty of Medical Sciences. Department of Paraclinical Sciences. St Augustine. TT
  • Seemungal, T; University of the West Indies. Faculty of Medical Sciences. Department of Paraclinical Sciences. St Augustine. TT
West Indian med. j ; West Indian med. j;60(3): 298-302, June 2011. ilus, graf, tab
Article em En | LILACS | ID: lil-672771
Biblioteca responsável: BR1.1
ABSTRACT

OBJECTIVE:

Data on the use of Imatinib (IM) in developing countries remain limited. A retrospective study was done to assess the efficacy and toxicity of IM in treating chronic myeloid leukaemia (CML) in Trinidad and Tobago.

METHODS:

Patients in all phases of CML who started IM therapy between February 2001 and February 2004 were included. All had received other previous therapy. They were assessed for haematological, cytogenetic and molecular response, overall survival (OS), event free survival (EFS) and adverse effects (AE).

RESULTS:

Twenty-five patients were followed-up for a median 61 months. At initiation ofIM, 18 were in the chronic phase (CP), 3 in accelerated phase (AP), 3 in blast crisis (BC) and one in myelofibrotic transformation (MF). Overall, 96% of patients achieved complete haematological remission (CHR). Among CP patients, 67% attained a major cytogenetic response (MCR) and 44% a complete cyto genetic response (CCR). Overall survival and event free survival in the CP group were 82% and 76% respectively. Overall survival for advanced phase patients was 14% at 61 months The adverse effects of IM were the same as previously described and generally tolerable. No patient opted to discontinue IM because ofside effects.

CONCLUSION:

After 5 years of follow-up, IM was found to induce favourable and durable survival responses with an acceptable side effect profile in CP-CML patients who had received prior treatment with alternative agents.
RESUMEN

OBJETIVO:

Los datos sobre el uso de imatinib (IM) en los países en vías de desarrollo, siguen siendo limitados. Se hizo un estudio retrospectivo con el fin de evaluar la eficacia y toxicidad de IM en el tratamiento de la leucemia mieloide crónica (LMC) en Trinidad y Tobago.

MÉTODOS:

Se incluyeron todos los pacientes -en todas las fases de LMC - que empezaron la terapia de IM entre febrero de 2001 y febrero de 2004. Todos habían recibido otra terapia previamente. Se les evaluó con respecto a su respuesta hematológica, citogenética y molecular, supervivencia global (SG), supervivencia libre de eventos (SLE), y efectos adversos (EA).

RESULTADOS:

Veinticinco pacientes tuvieron seguimiento por espacio de 61 meses como promedio. En la iniciación de IM, 18 estaban en fase crónica (FC), 3 en la fase acelerada (FA), 3 en crisis blástica (CB) y uno en transformación mielofibrótica (MF). En general, 96% de los pacientes lograron la remisión hematológica completa (RHC). Entre los pacientes de CF, 67% lograron una repuesta citogénica mayor (RCM) y 44% una respuesta citogénica completa (RCC). La supervivencia global (SG) y la supervivencia libre de eventos (SLE) en el grupo FC fueron 82% y 76% respectivamente. La supervivencia global para los pacientes en fase avanzada fue de 14% en 61 meses. Los EA de IM fueron los mismos previamente descritos, y eran generalmente tolerables. Ningún paciente optó por discontinuar IM debido a efectos adversos.

CONCLUSIÓN:

Después de 5 años de seguimiento, se halló que IM induce respuestas de supervivencia favorables y duraderas en los pacientes de LMC-FC previamente tratados, con un perfil aceptable de efectos colaterales.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Piperazinas / Pirimidinas / Proteínas Tirosina Quinases / Leucemia Mielogênica Crônica BCR-ABL Positiva / Antineoplásicos Tipo de estudo: Observational_studies / Prognostic_studies Limite: Adolescent / Adult / Aged / Female / Humans / Male País/Região como assunto: Caribe ingles / Trinidad y tobago Idioma: En Revista: West Indian med. j Assunto da revista: MEDICINA Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Trinidad e Tobago País de publicação: Jamaica
Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Piperazinas / Pirimidinas / Proteínas Tirosina Quinases / Leucemia Mielogênica Crônica BCR-ABL Positiva / Antineoplásicos Tipo de estudo: Observational_studies / Prognostic_studies Limite: Adolescent / Adult / Aged / Female / Humans / Male País/Região como assunto: Caribe ingles / Trinidad y tobago Idioma: En Revista: West Indian med. j Assunto da revista: MEDICINA Ano de publicação: 2011 Tipo de documento: Article País de afiliação: Trinidad e Tobago País de publicação: Jamaica