ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2020
A new therapeutic approach in very refractory diffuse large B-cell lymphoma.
Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposePatients with diagnosis of diffuse large B-cell lymphoma, who relapse after stem cell transplant (SCT) or are no candidates to SCT, have a poor prognosis and no current treatment is available. Thus, we conduct a rotatory chemotherapy schedule that employed low doses of chemotherapy agents to assess efficacy and toxicity in this setting of patients; the end point was the improved outcome.
methodsRetrospectively we revised an analysis of 461 patients who were treated with a low-doses regimen of cytotoxic agents, who were treated in a single institution, all patients has been treated with at least two salvage regimens, including SCT, > 18 years, performance status < 3, and that were informed about the possibility of severe toxicities,, were considered candidates to the study. They received a weekly rotatory scheme including low doses of cytotoxic agents during 2 years.
resultsOverall response rate was achieved in 314 patients (68%, 95% Confidence interval (CI) 59-76%) and complete response was achieved in 151 cases (32%, 95% CI 25-38%); actuarial curves at 10 years show that progression-free survival was 58% (95% CI 51-66%) and OS was 50% (95% CI 43-57%). Dose reduction was not necessary; toxicity was minimal and well controlled. No death related to acute or late toxicities has been observed.
conclusionLow doses of cytotoxic agents for continuous, prolonged periods, with minimal drug-free intervals, represent a novel, active, and easily tolerated approach to management of patients with DLBCL in a terminal phase and improved outcome.
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