Abstract:
:Long-term disease-free survival following conventional cytotoxic therapy is extremely rare in patients with advanced-stage mantle cell lymphoma (MCL). High-dose conditioning therapy consisting of hyperfractionated total body irradiation (TBI, 14.4 Gy) and cyclophosphamide (200 mg/kg) was therefore offered to 13 patients (four females/nine males) with advanced-stage MCL. The patients were relatively young with a median age of 49 years (range 30-60). High-dose cytarabine and mitoxantrone with granulocyte colony-stimulating factor (G-CSF) support were given for second-line therapy and mobilization of peripheral blood stem cells (PBSC). During cytokine-stimulated marrow recovery, a median of two leukaphereses (range 1-4) were performed. Using direct immunofluorescence analysis including two-color staining, the proportion of CD19+ B cells and CD34+/CD19+ B lymphoid progenitor cells was found to be extremely low with quantities below detection limit in approximately 50% of the autografts. At the time of autografting, nine patients (pts) were in first partial (five pts) or complete (four pts) remission, while four patients had achieved a second complete remission. Following myeloablative therapy a median number of 7.5 x 10(6) CD34+ cells/kg were autografted. The median time for neutrophil (> or = 0.5 x 10(9)/l) and platelet recovery (> or = 20 x 10(9)/l) was 13 and 10 days, respectively. Hematological recovery was delayed in a patient who received 5.8 x 10(6) positively selected CD34+ cells/kg. There was one toxic death 17 days post-transplantation because of overwhelming interstitial pneumonia. Two patients with a history of previous treatment failure relapsed 10 and 11 months post-transplantation, respectively, at sites of previous disease. Ten patients are disease-free with a median follow-up time of 18 months (range 10-47). The results presented here suggest that PBSC-supported high-dose therapy including TBI may provide long-term disease-free survival for patients with advanced-stage mantle cell lymphoma.
journal_name
Leukemiajournal_title
Leukemiaauthors
Haas R,Brittinger G,Meusers P,Murea S,Goldschmidt H,Wannenmacher M,Hunstein Wsubject
Has Abstractpub_date
1996-12-01 00:00:00pages
1975-9issue
12eissn
0887-6924issn
1476-5551journal_volume
10pub_type
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