• E R Gaynor, J E Ultmann, H M Golomb, and D L Sweet.
• J. Clin. Oncol. 1985 Dec 1; 3 (12): 1596-604.

AbstractBetween March 1974 and December 1983, 83 patients with diffuse histiocytic lymphoma (DHL) were treated with COMLA (cyclophosphamide 1.5 g/m2 day 1; Oncovin (Lilly, Indianapolis) 1.4 mg/m2 days 1, 8, and 15; and cytosine arabinoside 300 mg/m2 and methotrexate 120 mg/m2 days 22, 29, 36, 43, 50, 57, 64, and 71; and leucovorin 25 mg/m2 every six hours X 4, beginning 24 hours after methotrexate). For the purpose of analysis, patients were divided into two groups. Group 1 (n = 54) included patients age 65 or under who had received no prior curative radiotherapy or chemotherapy. Group 2 (n = 29) included all patients over age 65 and patients who had received prior curative radiation therapy or prior minimal chemotherapy. The median time of follow-up for all patients was 28 months. Group 1 included 11 stage II, ten stage III, and 33 stage IV patients. Of 48 evaluable patients in this group, 21 (44%) achieved a complete remission (CR), eight (17%) achieved a partial remission (PR), and 19 (40%) showed no response (NR). Median survival of CR patients was 114+ months, PR patients, 42 months, and NR patients, 13 months. Six CR patients relapsed. The median disease-free survival of CR patients was 108+ months. Group 2 included nine stage II, seven stage III, and 13 stage IV patients. Of 24 patients evaluable for response, eight (33%) achieved a CR, six (25%) achieved a PR, and ten (42%) showed no response. The median survival of CR patients was 114+ months, that of PR patients was 17 months, and that of NR patients, 9 months. Two CR patients relapsed. The median disease-free survival of CR patients had not been reached at 102 months. The regimen was well tolerated in most patients and toxicity was acceptable. We conclude that COMLA is a well tolerated outpatient chemotherapy regimen capable of inducing durable CRs in some patients with DHL. Results achieved with COMLA, however, are inferior to those of more aggressive treatment programs; thus, the use of COMLA as first-line therapy in DHL should be limited to those patients unable to tolerate a more aggressive treatment program.

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