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Study to Assess Compliance With Long-Term Mercaptopurine Treatment in Young Patients With Acute Lymphoblastic Leukemia in Remission

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborator:
Information provided by (Responsible Party):
Children's Oncology Group
ClinicalTrials.gov Identifier:
NCT00268528
First received: December 20, 2005
Last updated: February 13, 2014
Last verified: February 2014
  Purpose

This clinical trial is assessing compliance with long-term mercaptopurine treatment in young patients with acute lymphoblastic leukemia in remission. Assessing why young patients who have acute lymphoblastic leukemia may not take their medications as prescribed may help identify ways to assist them in taking their medications more consistently and may improve long-term treatment outcomes.


Condition Intervention
Childhood Acute Lymphoblastic Leukemia in Remission
Behavioral: compliance monitoring
Other: study of socioeconomic and demographic variables
Drug: mercaptopurine tablet
Drug: methotrexate

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Understanding the Ethnic and Racial Differences in Survival in Children With Acute Lymphoblastic Leukemia

Resource links provided by NLM:


Further study details as provided by Children's Oncology Group:

Primary Outcome Measures:
  • Dummy Message [ Time Frame: Dummy Message ] [ Designated as safety issue: No ]
    Dummy Message


Estimated Enrollment: 720
Study Start Date: May 2005
Estimated Primary Completion Date: January 2100 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Arm I
Patients receive an electronic pill monitoring system comprising an empty MEMS^® medication bottle with TrackCap™ child resistant (CR). The mercaptopurine prescription is filled using this system. Beginning on day 1 of the third or later course of maintenance therapy, patients take all doses of mercaptopurine from the MEMS^® medication bottle with TrackCap™ CR for at least 6 months. The MEMS^® TrackCap™ CR is mailed to the study center at the end of study. Patients also receive oral methotrexate as indicated by their individual chemotherapy regimen.
Behavioral: compliance monitoring Other: study of socioeconomic and demographic variables Drug: mercaptopurine tablet
Given orally
Other Names:
  • 6-mercaptopurine
  • 6-MP
  • Leukerin
  • MP
Drug: methotrexate
Given orally
Other Names:
  • amethopterin
  • Folex
  • methylaminopterin
  • Mexate
  • MTX

Detailed Description:

PRIMARY OBJECTIVES:

I. Determine and compare adherence to maintenance mercaptopurine using the following assessments: serial red cell mercaptopurine metabolites (i.e., 6TGN and methylTIMP), frequency of mercaptopurine dosing using an electronic pill monitoring system (MEMS®), and self-report of adherence to mercaptopurine by questionnaire in a cohort of younger patients with acute lymphoblastic leukemia in first remission who belong to four different ethnic and racial groups (Caucasians, African-Americans, Hispanics, and Asians).

II. Determine the impact of adherence to mercaptopurine on event-free-survival (EFS) in the entire cohort, after adjusting for known predictors of disease outcome.

III. Define a critical level of adherence that has a significant impact on EFS for the entire cohort.

IV. Describe prevalence of adherence to mercaptopurine by ethnicity. V. Describe behavioral and sociodemographic predictors of adherence. VI. Describe the pill-taking practices in this cohort. VII. Evaluate the impact of adherence on ethnic/racial difference in EFS.

SECONDARY OBJECTIVES:

I. Assess the concordance among 6TGN and methylTIMP levels, electronic pill monitoring, and self-reported adherence in the ethnic/racial groups.

OUTLINE: This is a multicenter study.

Patients receive an electronic pill monitoring system comprising an empty MEMS® medication bottle with TrackCap™ child resistant (CR). The mercaptopurine prescription is filled using this system. Beginning on day 1 of the third or later course of maintenance therapy, patients take all doses of mercaptopurine from the MEMS® medication bottle with TrackCap™ CR for at least 6 months. The MEMS® TrackCap™ CR is mailed to the study center at the end of study. Patients also receive oral methotrexate as indicated by their individual chemotherapy regimen.

NOTE: *Study closed to accrual for Caucasian and Hispanic patients as of 8/14/2009.

Blood samples are collected on days 1, 29, 57, 85, 113, 141, and 169. Patient or caregiver completes demographic questionnaire on day 29. Patient and/or caregiver completes a self-reported adherence questionnaire on days 29, 57, 113, and 141.

After completion of study treatment, patients are followed periodically.

  Eligibility

Ages Eligible for Study:   up to 21 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Diagnosis of acute lymphoblastic leukemia (ALL) at ≤ 21 years of age

    • Disease in first remission
  • Receiving self- or parent/caregiver-administered oral antimetabolite chemotherapy during the maintenance phase of therapy

    • Has completed at least two courses* of maintenance chemotherapy, and is scheduled to receive at least two more planned courses of maintenance chemotherapy

      • Treatment plan must include oral mercaptopurine (6-MP) at 75 mg/m^2/day and oral methotrexate at 20 mg/m^2/week during the maintenance phase

        • Dose modification of 6-MP or methotrexate based on laboratory or clinical parameters is acceptable
  • Belongs to one of the four following ethnic/racial categories: African-American, Asian,Caucasian*, or Hispanic*
  • Concurrent enrollment on another therapeutic study for ALL allowed
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00268528

  Show 103 Study Locations
Sponsors and Collaborators
Children's Oncology Group
Investigators
Principal Investigator: Smita Bhatia Children's Oncology Group
  More Information

No publications provided

Responsible Party: Children's Oncology Group
ClinicalTrials.gov Identifier: NCT00268528     History of Changes
Other Study ID Numbers: AALL03N1, NCI-2009-00305, CDR0000459748, AALL03N1, COG-AALL03N1, AALL03N1, U10CA095861
Study First Received: December 20, 2005
Last Updated: February 13, 2014
Health Authority: United States: Institutional Review Board

Additional relevant MeSH terms:
Leukemia
Leukemia, Lymphoid
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Immune System Diseases
Immunoproliferative Disorders
Lymphatic Diseases
Lymphoproliferative Disorders
Neoplasms
Neoplasms by Histologic Type
6-Mercaptopurine
Methotrexate
Abortifacient Agents
Abortifacient Agents, Nonsteroidal
Antimetabolites
Antimetabolites, Antineoplastic
Antineoplastic Agents
Antirheumatic Agents
Dermatologic Agents
Enzyme Inhibitors
Folic Acid Antagonists
Immunologic Factors
Immunosuppressive Agents
Molecular Mechanisms of Pharmacological Action
Nucleic Acid Synthesis Inhibitors
Pharmacologic Actions
Physiological Effects of Drugs
Reproductive Control Agents
Therapeutic Uses

ClinicalTrials.gov processed this record on November 20, 2014