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Study on Two Different Formulations of 6-mercaptopurine. Tablet Versus Oral Liquid

NCT01906671 · Status: UNKNOWN · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 16

Last updated 2018-04-20

No results posted yet for this study

Summary

Acute lymphoblastic leukemia (ALL) accounts for 30 % of all childhood malignancies. The patients undergo four phases of treatment, finishing with a late maintenance phase in which 6-mercaptopurine and Methotrexate are essential components. Insufficient treatment intensity in this phase is associated with increased risk of relapse. Excessive variation in the bioavailability of 6-mercaptopurine has been observed which can cause both risks of undertreatment/relapse as well as overtreatment with severe side effects.

In the attempt to achieve individualized 6-mercaptopurine dosing different approaches have been pursued. Nonetheless variation in bioavailability remains a problem.

Earlier, oral tablets of 50 mg (Purinethol) were the only administration form of 6-mercaptopurine and it was primarily designed for adult patients. Challenges with accurate dosing and getting the children to swallow the tablets have been a widespread problem, forcing the caregivers to divide or crush the tablets as well as having to administer different dosages over 2-3 days. Due to these problems, an oral liquid formulation of 6-mercaptopurine (Xaluprine) has been developed. However this oral liquid has only been tested on healthy adult volunteers, and not on the target group, childhood patients. This project will assess the bioavailability and plasma kinetics of oral liquid and tablet formulation of 6-mercaptopurine in children with acute lymphoblastic leukemia.

The investigators hypothesize to observe comparable plasma kinetics, in children with acute lymphoblastic leukemia when treated with 6-mercaptopurine in the form of a tablet and oral liquid formulation, as previously observed in healthy adults.

Conditions

Interventions

DRUG

Xaluprine

Comparison of plasma kinetics after administration of 6-mercaptopurine in the form of a tablet (Puri-Nethol) and in the form of an oral liquid formulation (Xaluprine). Each patient will be included in both arms of the study, because of the cross-over design.

DRUG

Puri-Nethol

Comparison of plasma kinetics after administration of 6-mercaptopurine in the form of a tablet (Puri-Nethol) and in the form of an oral liquid formulation (Xaluprine). Each patient will be included in both arms of the study, because of the cross-over design.

Sponsors & Collaborators

  • Danish Cancer Society

    collaborator OTHER

  • Kjeld Schmiegelow

    lead OTHER

Principal Investigators

  • Kjeld Schmiegelow, Professor · Pediatric Clinic II, Rigshospitalet, Copenhagen

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
CROSSOVER

Eligibility

Max Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-06-30
Primary Completion
2018-09-30
Completion
2018-11-30

Countries

  • Denmark

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01906671 on ClinicalTrials.gov