Immunotherapy for remission maintenance in acute myeloblastic leukemia |
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Authors: | Michael A. Baker Robert N. Taub Walter H. Carter the Toronto Leukemia Study Group |
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Affiliation: | (1) Department of Medicine, Toronto Western Hospital, University of Toronto, 399 Bathurst Street, M5T 258 Toronto, Ontario, Canada;(2) Division of Oncology, Department of Medicine, Columbia University, New York, NY, USA;(3) Department of Biostatistics, Medical College of Virginia, Richmond, Virginia, USA |
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Abstract: | Summary Forty-eight patients with acute myeloblastic leukemia in remission were treated with immunotherapy in addition to remission-maintenance chemotherapy. The first 16 patients were treated with weekly BCG and a leukemia cell vaccine (group 1). The next 32 patients were randomly allocated to receive BCG and a leukemia cell vaccine given once monthly (group 2) or BCG given monthly with no leukemia cell vaccine (group 3). There was no significant difference in remission duration or survival between the randomly allocated groups (2 and 3).Comparisons with group 1 are limited by the non-random allocation to this group, but selection bias was unlikely and clinical features were similar in the three patient groups. No significant difference in remission duration or survival was seen amongst the three groups studied. There was no advantage in the addition of leukemia cell vaccine (groups 1 and 2) to BCG alone (group 3) and no advantage to weekly (group 1) versus monthly immunotherapy (groups 2 and 3). Only 7 of the 48 patients achieved a second remission, and 4 of these were short-term partial remissions.The following are contributing members of the Toronto Leukemia Study Group: Doctor's Hospital, Harvey Silver MD; Humber Memorial Hospital, Alan Seidenfeld MD; Mississauga Hospital, Michael King MD; Mount Sinai Hospital, Dominic Amato MD; Northwestern Hospital, Wilhelm Kwant MD; Oshawa General Hospital, Hak Chiu MD; St Michael's Hospital, Bernadette Garvey MD, Kenneth Butler MD; St Joseph's Hospital, H. James Watt MD, Murray Davidson MD; Toronto General Hospital, Gerald Scott MD, William Francombe MD, Kenneth Shumak MD; John Crookston MD, PhD; Toronto Western Hospital, James G. Watt MD, David Sutton MD; Michael Baker MD; Domenic Pantalony MD; Wellesley Hospital, Dale Dotten MD; Women's College Hospital, George Kutas MD; York Finch Hospital, Sam Berger MD |
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