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Haematologica ; 101(11): 1398-1406, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27662018

RESUMO

Autologous transplantation is controversial for older patients with multiple myeloma. The role of age-adjusted high-dose melphalan and the impact of induction chemotherapy cycles is still unclear. A total of 434 patients aged 60-70 years were randomly assigned to 4 cycles of standard anthracycline-based induction chemotherapy or no induction. For all patients, double autologous transplantation after melphalan 140 mg/m2 (MEL140) was planned. The primary end point was progression-free survival. Of 420 eligible patients, 85% received a first transplant and 69% completed double transplantation. Treatment duration was short with a median of 7.7 months with induction chemotherapy cycles and 4.6 months without induction. On an intention-to-treat basis, median progression-free survival with induction chemotherapy cycles (207 patients) was 21.4 months versus 20.0 months with no induction cycles (213 patients) (hazard ratio 1.04, 95% confidence interval 0.84-1.28; P=0.36). Per protocol, progression-free survival was 23.7 months versus 23.0 months (P=0.28). Patients aged 65 years or over (55%) did not have an inferior outcome. Patients with low-risk cytogenetics [absence of del17p13, t(4;14) and 1q21 gains] showed a favorable overall survival and included the patients with sustained first remission. MEL140 was associated with a low rate of severe mucositis (10%) and treatment-related deaths (1%). Based on hazard ratio, the short treatment arm consisting of mobilization chemotherapy and tandem MEL140 achieved 96% of the progression-free survival, demonstrating its value as an independent component of therapy in older patients with multiple myeloma who are considered fit for autologous transplantation. (clinicaltrials.gov identifier: 02288741).


Assuntos
Mieloma Múltiplo/terapia , Transplante de Células-Tronco/métodos , Idoso , Citogenética , Intervalo Livre de Doença , Feminino , Mobilização de Células-Tronco Hematopoéticas/métodos , Humanos , Quimioterapia de Indução/métodos , Masculino , Melfalan/administração & dosagem , Pessoa de Meia-Idade , Mucosite/induzido quimicamente , Mieloma Múltiplo/complicações , Mieloma Múltiplo/mortalidade , Transplante de Células-Tronco/mortalidade , Transplante Autólogo , Resultado do Tratamento
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