Regimen-related toxicity and early posttransplant survival in patients undergoing marrow transplantation for lymphoma.
Ninety-five patients transplanted for malignant lymphoma were retrospectively evaluated for regimen-related toxicity (RRT) and early posttransplant survival. Nineteen patients developed life-threatening (grade 3) or fatal (grade 4) RRT in one or more organs. Grade 3 or 4 RRT was more common in patients with advanced disease versus those transplanted earlier in their course (P = .008), and was more common in patients with advanced disease conditioned with cytarabine (Ara-C)/total body irradiation (TBI) versus those prepared with cyclophosphamide (CY)/TBI (P = .033). There was no significant difference in the incidence of grade 3 or 4 toxicity in autologous, histocompatibility locus antigen (HLA)-identical, or HLA-mismatched marrow recipients. Grade 3 or 4 RRT tended to be more common and 100-day survival worse in patients with a Karnofsky performance status of less than 90 (P = .063 and .0002, respectively). Patients receiving 20 Gy or more of mediastinal irradiation before coming to transplant had more idiopathic or cytomegalovirus (CMV) interstitial pneumonitis than those who received less than 20 Gy (30% v 9%, P = .027). The probability of survival decreased with the number of organs in which toxicity was observed (P = .0001). Severe or fatal toxicities directly related to the preparative regimen are a significant problem in the treatment of patients with advanced malignant lymphoma and can be reduced by carrying out transplantation earlier in the course of the disease.
Bearman, SI; Appelbaum, FR; Back, A; Petersen, FB; Buckner, CD; Sullivan, KM; Schoch, HG; Fisher, LD; Thomas, ED
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