NOPHO ALL-2008 Pilot Study on Consolidation Therapy for Children and Adolescents With Acute Lymphoblastic Leukemia

Leukemia, Lymphocytic, Acute Clinical Trial

Official title: Phase II Study of Individual 6-mercaptopurine(6MP) Dose Increments in Children With Acute Lymphoblastic Leukemia (ALL) Receiving High-dose Methotrexate (HDM) and PEG-asparaginase

Status Completed

Clinical Trial Summary

The present pharmacokinetic (PK)-pharmacodynamic (PD) study will explore the toxicity and antileukemic response during the initial 3 months of individualised therapy of children and young adults with acute lymphoblastic leukemia (ALL). The investigators will on an individual toxicity-titrated basis attempt to increase the dose intensity of the 6-mercaptopurine used in the two-months post-remission treatment phase of lower risk childhood ALL. This will be performed together with continuous PEG-ASP (every 2nd week) and interspersed HD-MTX (5 g/m^2) every 3rd week. Thus, the trial will also test the feasibility of this particular drug combination.

Clinical Trial Description

In addition to the details above we will also explore

• the relationship of the post-HD-MTX MRD-levels with the dose of 6MP, TPMT-activity, DNA-6TGN, E-6TGN, E-MeMP, E-MTX, and presence of ASP-antibodies,

• the early development of anti-ASP antibodies during continuous PEG-ASP therapy.

The study could improve the understanding of the pharmacodynamics of the 6MP/HD-MTX interaction in combination with PEG-ASP. ;

Study Design

Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Leukemia
• Leukemia, Lymphocytic, Acute
• Leukemia, Lymphoid
• Precursor Cell Lymphoblastic Leukemia-Lymphoma

• NCT number: NCT00548431
• Study type: Interventional
• Source: Rigshospitalet, Denmark
• Status: Completed
• Phase: Phase 2
• Start date: December 2007
• Completion date: May 2009