Clinical Evaluation of Nelarabine (506U78)in Japanese Patients With Leukemia or Lymphoma

GlaxoSmithKline (GSK)

Status and phase: Completed; Phase 1

Conditions: Leukaemia, Lymphoblastic, Acute and Lymphoma, Lymphoblastic

Treatments: Drug: Nelarabine injection 1000mg/m2; Drug: Nelarabine injection 400mg/m2; Drug: Nelarabine injection 650mg/m2; Drug: Nelarabine injection 1500mg/m2

Study type: Interventional

Funder types: Industry

Identifiers

NCT00406757

PGA105446

Details and patient eligibility

About

In Japan, patients with relapsed or refractory T-ALL/T-LBL represent an extremely small patient population. While the small number of patients presents a practical limitation to the size of a clinical trial, patients whose disease has not responded to or has relapsed after treatment with multiple prior chemotherapy regimens have no accepted standard therapies available. Japanese leukemia experts have expressed interest in evaluating 506U78 in Japanese patients with relapsed or refractory T-ALL/T-LBL. In order to obtain safety, tolerability, and pharmacokinetic data of 506U78 in Japanese patients, this study is designed to maximize the contribution of each available patient.

Enrollment: 13 patients

Sex: All

Ages: Under 64 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Histologic or cytogenetic documented diagnosis of T-ALL or T-LBL.
• Disease that is refractory to at least one prior chemotherapy regimen, or has relapsed following complete remission to at least one prior chemotherapy regimen.
• At least 4 weeks since the last dose of prior last chemotherapy, or radiotherapy before beginning treatment with 506U78 (2 weeks is permitted if growth of blast cells is significant).
• Adequate function of other organ systems as measured as follows.Serum creatinine is less than 1.5 times of upper limit of normal and estimated creatinine clearance >=50 mL/min. Hepatic transaminases (SGPT and SGOT) <=3 x upper limit of normal, bilirubin is less than 1.5 times of upper limit of normal(<=5 x upper limit of normal if it is related by T-ALL or T-LBL).
• Adequate performance status (ECOG-PS<=2).
• Capable of giving informed consent which includes compliance with the requirements and restrictions listed in the consent form.
• Patient is willing to accept hospitalization during the blood sampling for pharmacokinetic measurement (i.e., Cohort 1: for pharmacokinetic sample collection during both cycle 1 and 2; and Cohort 2: for pharmacokinetic sample collection during cycle 1).
• Female subjects who are of child-bearing potential must have a negative pregnancy test at the Screening Visit and agree to utilize contraceptive methods during participation in the study and for at least six months following the last dose of 506U78 Injection. Female subjects may be defined as of non-child-bearing potential if they are physiologically incapable of becoming pregnant, including any female who is post-menopausal. For purposes of this study, postmenopausal is defined as one year without menses.

Exclusion criteria

• Active infection at time of treatment.
• Concurrent disease or condition that would make the subject inappropriate for study participation.
• Receiving any other anticancer agents or enrolled on any investigational study during the course of the study.
• Patients must have recovered to Grade I or less toxicity of all previous chemotherapy prior to treatment.
• History of seizure disorder within one year prior to the date of informed consent.
• Pregnancy (as demonstrated by a positive pregnancy test at pre-study/screening) or breastfeeding. Fertile women and men must practice adequate contraception throughout the study and at least 6 month after the last dose of study drug.

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Single Group Assignment

Masking: None (Open label)

---

13 participants in 5 patient groups

Pediatric Arm 1

Active Comparator group

Description:

Cycle 1: Nelarabine 400mg/m2 will be administered once daily from Day 1 to Day 5 followed by 16 days of off-dose. Cycle 2 and subsequent Cycles: Nelarabine 650mg2 will be administered once daily from Day 1 to Day 5 followed by 16 days of off-dose.

Treatment:

Drug: Nelarabine injection 400mg/m2

Pediatric Arm 2

Active Comparator group

Description:

Cycle 1 and subsequent Cycles: Nelarabine 650mg/m2 will be administered once daily from Day 1 to Day 5 followed by 16 days of off-dose.

Treatment:

Drug: Nelarabine injection 650mg/m2

Adult Arm 1

Active Comparator group

Description:

Cycle 1: Nelarabine 1000mg/m2 will be administered once daily on Days 1, 3 and 5 followed by 16 days of off-dose. Cycle 2 and subsequent Cycles: Nelarabine 1500mg/m2 will be administered once daily on Days 1, 3 and 5 followed by 16 days of off-dose.

Treatment:

Drug: Nelarabine injection 1000mg/m2

Adult Arm 2

Active Comparator group

Description:

Cycle 1 and subsequent Cycles: Nelarabine 1500mg/m2 will be administered once daily on Days 1, 3 and 5 followed by 16 days of off-dose.

Treatment:

Drug: Nelarabine injection 1500mg/m2

Pediatric Arm 3

Active Comparator group

Description:

Nelarabine 650mg/m2 will be administered once a day from Day 1 to Day 5.

Treatment:

Drug: Nelarabine injection 650mg/m2