A Study Assessing Compliance with Mercaptopurine Treatment in Children with Acute Lymphoblastic Leukemia in First Remission


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Rochester, Minnesota: 12-004675
    NCT ID: NCT01503632
    Sponsor Protocol Number: ACCL1033

About this study

This randomized phase III trial studies compliance to a mercaptopurine treatment intervention compared to standard of care in younger patients with acute lymphoblastic leukemia in remission. Assessing ways to help patients who have acute lymphoblastic leukemia to take their medications as prescribed may help them in taking their medications more consistently and may improve treatment outcomes.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria

  • Diagnosis of ALL, in first remission
    • Enrollment on a Children Oncology Group (COG) therapeutic study for ALL is not required
  • At the time of enrollment, patient must have completed at least 24 weeks of maintenance chemotherapy, and is scheduled to receive at least 24 more weeks of maintenance chemotherapy
  • Receiving continuous oral 6MP during the maintenance phase of therapy for ALL (held only for toxicity or illness), and will be returning to the clinic every 4 weeks for scheduled appointments while enrolled on COG ACCL1033 (between days 1 and 141)
  • Has a designated parent or caregiver who is willing to enter into a mutual agreement with the patient to participate in a daily supervised medication administration routine
  • Able and willing to use the MEMS® TrackCap™ (e.g., not using a pillbox or prescribed liquid 6MP)
  • Parent/caregiver and patient (if 12 years and older) must be willing to use a cellular telephone to receive medication reminders via text messaging during study period
  • Patient and parent/caregiver must speak English or Spanish
  • All patients and/or their parents or legal guardians must sign a written informed consent
  • All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met


Exclusion Criteria

  • Patients with Down syndrome
  • Patients who previously participated in or are currently participating in another intervention clinical trial designed to improve adherence

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Vilmarie Rodriguez, M.D.

Contact us for the latest status

Contact information:

Cancer Center Clinical Trials Referral Office


More information

Study Progress

This study has completed enrollment of targeted participants and currently is completing research activities including study intervention, specimen collection, testing and data analysis.


Publications are currently not available

Study Results Summary

Not yet available

Supplemental Study Information

Not yet available


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