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Clofarabine Plus Low-Dose Cytarabine Is as Effective as and Less Toxic Than Intensive Chemotherapy in Elderly AML Patients.


ABSTRACT: Most patients with acute myeloid leukemia (AML) age ? 60 years are not offered intensive induction because of high mortality. Phase 2 studies of clofarabine plus low-dose cytarabine (CLDA) as frontline therapy for elderly AML patients demonstrated high response and acceptable toxicity.We hypothesized that induction therapy with CLDA provides equivalent outcomes to but is less toxic than intensive induction in these patients. To test this hypothesis, we conducted a propensity score-matched comparison of AML patients age ? 60 years given induction CLDA versus idarubicin and cytarabine (IA). Ninety-five patients in both groups were matched according to their propensity score.We did not observe statistically significant differences in response, overall survival, or mortality rate between the two induction regimens. However, CLDA produced significantly fewer grade 3 or worse toxicities (46% for CLDA vs. 62% for IA; P = .03). Furthermore, among responders, the median response duration was significantly longer with CLDA when we censored patients who underwent stem cell transplantation (15.9 months for CLDA vs. 7.0 months for IA; P = .033).Compared with intensive induction, CLDA offers equivalent responses and survival but less toxicity in clinically well-matched cohorts of elderly AML patients. Prospective randomized trials to confirm these findings are warranted.

SUBMITTER: Takahashi K 

PROVIDER: S-EPMC4804759 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature

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Clofarabine Plus Low-Dose Cytarabine Is as Effective as and Less Toxic Than Intensive Chemotherapy in Elderly AML Patients.

Takahashi Koichi K   Kantarjian Hagop H   Garcia-Manero Guillermo G   Borthakur Gautam G   Kadia Tapan T   DiNardo Courtney C   Jabbour Elias E   Pierce Sherry S   Estrov Zeev Z   Konopleva Marina M   Andreeff Michael M   Ravandi Farhad F   Cortes Jorge J  

Clinical lymphoma, myeloma & leukemia 20151124 3


<h4>Introduction</h4>Most patients with acute myeloid leukemia (AML) age ≥ 60 years are not offered intensive induction because of high mortality. Phase 2 studies of clofarabine plus low-dose cytarabine (CLDA) as frontline therapy for elderly AML patients demonstrated high response and acceptable toxicity.<h4>Patients and methods</h4>We hypothesized that induction therapy with CLDA provides equivalent outcomes to but is less toxic than intensive induction in these patients. To test this hypothes  ...[more]

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