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1.
N Engl J Med ; 368(19): 1771-80, 2013 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-23656642

RESUMO

BACKGROUND: The effectiveness of platelet transfusions to prevent bleeding in patients with hematologic cancers remains unclear. This trial assessed whether a policy of not giving prophylactic platelet transfusions was as effective and safe as a policy of providing prophylaxis. METHODS: We conducted this randomized, open-label, noninferiority trial at 14 centers in the United Kingdom and Australia. Patients were randomly assigned to receive, or not to receive, prophylactic platelet transfusions when morning platelet counts were less than 10×10(9) per liter. Eligible patients were persons 16 years of age or older who were receiving chemotherapy or undergoing stem-cell transplantation and who had or were expected to have thrombocytopenia. The primary end point was bleeding of World Health Organization (WHO) grade 2, 3, or 4 up to 30 days after randomization. RESULTS: A total of 600 patients (301 in the no-prophylaxis group and 299 in the prophylaxis group) underwent randomization between 2006 and 2011. Bleeding of WHO grade 2, 3, or 4 occurred in 151 of 300 patients (50%) in the no-prophylaxis group, as compared with 128 of 298 (43%) in the prophylaxis group (adjusted difference in proportions, 8.4 percentage points; 90% confidence interval, 1.7 to 15.2; P=0.06 for noninferiority). Patients in the no-prophylaxis group had more days with bleeding and a shorter time to the first bleeding episode than did patients in the prophylaxis group. Platelet use was markedly reduced in the no-prophylaxis group. A prespecified subgroup analysis identified similar rates of bleeding in the two study groups among patients undergoing autologous stem-cell transplantation. CONCLUSIONS: The results of our study support the need for the continued use of prophylaxis with platelet transfusion and show the benefit of such prophylaxis for reducing bleeding, as compared with no prophylaxis. A significant number of patients had bleeding despite prophylaxis. (Funded by the National Health Service Blood and Transplant Research and Development Committee and the Australian Red Cross Blood Service; TOPPS Controlled-Trials.com number, ISRCTN08758735.).


Assuntos
Neoplasias Hematológicas/terapia , Hemorragia/prevenção & controle , Transfusão de Plaquetas , Trombocitopenia/terapia , Adulto , Idoso , Antineoplásicos/uso terapêutico , Feminino , Neoplasias Hematológicas/complicações , Humanos , Análise de Intenção de Tratamento , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas , Transplante de Células-Tronco , Trombocitopenia/etiologia
2.
Blood ; 115(18): 3664-70, 2010 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-20197551

RESUMO

Enteropathy associated T-cell lymphoma (EATL) is a rare type of peripheral T-cell lymphoma. At present, there are no standardized diagnostic or treatment protocols for EATL. We describe EATL in a population-based setting and evaluate a new treatment with aggressive chemotherapy and autologous stem cell transplantation (ASCT). From 1979 onward the Scotland and Newcastle Lymphoma Group prospectively collected data on all patients newly diagnosed with lymphoma in the Northern Region of England and Scotland. Between 1994 and 1998, records of all patients diagnosed with EATL were reviewed, and 54 patients had features of EATL. Overall incidence was 0.14/100 000 per year. Treatment was systemic chemotherapy (mostly anthracycline-based chemotherapy) with or without surgery in 35 patients and surgery alone in 19 patients. Median progression-free survival (PFS) was 3.4 months and overall survival (OS) was 7.1 months. The novel regimen IVE/MTX (ifosfamide, etoposide, epirubicin/methotrexate)-ASCT [corrected] was piloted from 1998 for patients eligible for intensive treatment, and 26 patients were included. Five-years PFS and OS were 52% and 60%, respectively, and were significantly improved compared with the historical group treated with anthracycline-based chemotherapy (P = .01 and P = .003, respectively). EATL is a rare lymphoma with an unfavorable prognosis when treated with conventional therapies. The IVE/MTX-ASCT regimen is feasible with acceptable toxicity and significantly improved outcome.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Doença Celíaca/terapia , Transplante de Células-Tronco Hematopoéticas , Linfoma de Células T Periférico/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Doença Celíaca/complicações , Terapia Combinada , Etoposídeo/administração & dosagem , Feminino , Humanos , Ifosfamida/administração & dosagem , Linfoma de Células T Periférico/complicações , Masculino , Metotrexato/administração & dosagem , Pessoa de Meia-Idade , Estudos Prospectivos , Escócia/epidemiologia , Taxa de Sobrevida , Transplante Autólogo , Resultado do Tratamento , Vincristina/administração & dosagem
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