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[Phase I study of nelarabine in patients with relapsed or refractory T-ALL/T-LBL].

Author(s): Horibe K, Takimoto T, Yokozawa T, Makimoto A, Kobayashi Y, Ogawa C, Ohno R, Koh N, Katsura K, Tobinai K

Affiliation(s): Nagoya Medical Center Clinical Research Center.

Publication date & source: 2011-06, Rinsho Ketsueki., 52(6):406-15.

Publication type: Clinical Trial, Phase I

The safety, tolerability, pharmacokinetics and efficacy of nelarabine were evaluated in adult and pediatric patients with relapsed or refractory T-ALL/T-LBL. Adult patients received nelarabine i.v. over 2 hours on days 1, 3 and 5 in every 21 days, and pediatric patients received this regimen over 1 hour for 5 consecutive days in every 21 days. Safety was evaluated in 7 adult and 6 pediatric patients. Adverse events (AEs) were reported in all patients. Most frequently reported AEs included somnolence and nausea in adult patients and leukopenia and lymphocytopenia in pediatric patients. Five grade 3/4 AEs were reported in both adult and pediatric patients, most of which were hematologic events. There were no dose-limiting toxicities. Efficacy was evaluated in 7 adult and 4 pediatric patients. Complete response was noted in 1 adult and 2 pediatric patients. Higher intracellular ara-GTP concentrations were suggested to be associated with efficacy. Japanese adult and pediatric patients with T-ALL/T-LBL well tolerated nelarabine treatment, warranting further investigation.

Page last updated: 2011-12-09

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