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VM-26 with prednisone and vincristine for treatment of refractory acute lymphocytic leukemia.

Authors
  • Rivera, G
  • Bowman, W P
  • Murphy, S B
  • Dahl, G V
  • Aur, R J
  • Kalwinsky, D K
  • Wood, A
  • Stagner, S
  • Avery, T L
Type
Published Article
Journal
Medical and pediatric oncology
Publication Date
Jan 01, 1982
Volume
10
Issue
5
Pages
439–446
Identifiers
PMID: 6958957
Source
Medline
License
Unknown

Abstract

Fifty-six children with refractory acute lymphocytic leukemia (ALL) were assessed for remission-induction responses to VM-26 (250 mg/m2 per week) in combination with prednisone (40 mg/m2 per day) and vincristine (1.5 mg/m2 per week). Each child had been treated intensively with steroids, vincristine, daunorubicin and L-asparaginase. In fact, all patients had failed to respond to previous reinduction therapy with prednisone-vincristine or had relapsed while receiving vincristine. Our intent in this study was to test whether or not addition of VM-26 to prednisone-vincristine would overcome clinical resistance to these established agents. Complete remissions were induced in 17 patients (0.30) over 4 to 6 weeks. Five of these children, all clinically unresponsive to prednisone-vincristine alone, had complete remissions that lasted longer than 1 year; two remain in remission for 2 1/2 years and both are now off therapy. Myelosuppression, the most serious treatment complication, was documented in 20 of 26 evaluable patients. The median time to recovery of normal marrow function was 15 days. These results demonstrate further the potential of VM-26 in combined-drug treatment of refractory ALL. Whether the effectiveness of this combination represents potentiation of prednisone and vincristine activity by VM-26 or some other, as yet unidentified interaction, remains to be determined.

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