Liposomal cytarabine is effective and tolerable in the treatment of central nervous system relapse of acute lymphoblastic leukemia and very aggressive lymphoma.
BACKGROUND
Treatment of central nervous system relapse in adult acute lymphoblastic leukemia is a challenge and outcome is poor. Liposomal cytarabine has a prolonged half-life and, given intrathecally, has produced high response rates in patients with central nervous system relapse of non-Hodgkin's lymphoma. The aim of this study was to evaluate the efficacy and tolerability of liposomal cytarabine in central nervous system relapse of acute lymphoblastic leukemia or Burkitt's lymphoma/leukemia.


METHODS
Liposomal cytarabine (50 mg) was given intrathecally together with systemic or intrathecal dexamethasone once every 2 weeks in a phase II European trial. The primary end-point, cytological response in the cerebrospinal fluid after one or two cycles, was evaluated at the time of next treatment.


RESULTS
Nineteen heavily pretreated patients (median age, 53 years; range 24-76 years) were evaluable: 14 with acute lymphoblastic leukemia and 5 with Burkitt's lymphoma/leukemia). Complete cytological remission as best response after two cycles of liposomal cytarabine was confirmed in 74% of the patients: 86% of those with acute lymphoblastic leukemia and 40% of those with Burkitt's lymphoma/leukemia). Nine of the 14 patients who achieved complete remission relapsed after a median of 7 months. The median overall survival was 11 months. Adverse events were observed in 89% of the patients (57% of cycles). Grade III-IV events with potential correlation to liposomal cytarabine occurred in 32% of the patients. The most frequent adverse event was headache. One patient developed severe neurological complications with loss of vision and a conus syndrome.


CONCLUSIONS
Overall, liposomal cytarabine showed excellent antileukemic activity. Toxicity was acceptable but appeared to increase with the number of cycles. Future evaluation in prophylaxis is of interest.
Gökbuget
Nicola
N
Goethe University, Hospital Department of Internal Medicine II, Hematology/Oncology, Theodor Stern Kai 7 60590, Frankfurt, Germany. goekbuget@em.uni-frankfurt.de
Hartog
Christina-Maria
CM
Bassan
Renato
R
Derigs
Heinz-Gerd
HG
Dombret
Herve
H
Greil
Richard
R
Hernández-Rivas
Jesus-Maria
JM
Huguet
Francoise
F
Intermesoli
Tamara
T
Jourdan
Eric
E
Junghanss
Christian
C
Leimer
Lothar
L
Moreno
Maria-Jose
MJ
Reichle
Albrecht
A
Ribera
Josep
J
Schmid
Matthias
M
Serve
Hubert
H
Stelljes
Matthias
M
Stuhlmann
Reingard
R
Hoelzer
Dieter
D
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000964:Antimetabolites, Antineoplastic / Q000627:therapeutic use*; D002051:Burkitt Lymphoma / Q000150:complications / Q000188:drug therapy*; D016543:Central Nervous System Neoplasms / Q000188:drug therapy* / Q000209:etiology; D003561:Cytarabine / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007390:International Agencies; D008081:Liposomes; D008297:Male; D020714:Maximum Tolerated Dose; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000188:drug therapy*; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000150:complications / Q000188:drug therapy*; D011446:Prospective Studies; D012307:Risk Factors; D015996:Survival Rate; D016896:Treatment Outcome; D055815:Young Adult
D000964:Antimetabolites, Antineoplastic; D008081:Liposomes; D003561:Cytarabine