Fludarabine: a new agent with marked cytoreductive activity in untreated chronic lymphocytic leukemia.
Thirty-three patients with chronic lymphocytic leukemia (CLL) with advanced Rai stage (III-IV) or progressive Rai stage (0-II) disease were treated with fludarabine as a single agent. Eleven patients (33%) obtained a complete remission (CR), 13 (39%) a clinical CR with residual nodules as the only evidence of disease (nodular partial remission [PR]), and two patients (6%) achieved a PR for a total response rate of 79%. Response was rapid, usually occurring after three to six courses of treatment. The major morbidity was infection. Febrile episodes occurred in 13% of the courses (pneumonia 6%, minor infection 4%, and transient fever of undocumented cause 3%). Fludarabine appears to be the most cytoreductive single agent so far studied in CLL.
Department of Hematology, University of Texas MD Anderson Cancer Center, Houston 77030.
M J
MJ
Keating
H
H
Kantarjian
S
S
O'Brien
C
C
Koller
M
M
Talpaz
J
J
Schachner
C C
CC
Childs
E J
EJ
Freireich
K B
KB
McCredie
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000964:Antimetabolites, Antineoplastic / Q000009:adverse effects / Q000627:therapeutic use*; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012008:Recurrence; D012074:Remission Induction; D015996:Survival Rate; D001084:Vidarabine Phosphate / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000627:therapeutic use
D000964:Antimetabolites, Antineoplastic; D001084:Vidarabine Phosphate; C042382:fludarabine phosphate