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Completed

NCT Number: NCT03691220

Improving Medication Adherence in Adolescents Who Had a Liver Transplant

The study's aim is to test a tailored telemetric intervention to reduce rejection incidence by improving medication adherence in a group of adolescent liver transplant recipients identified as nonadherent by a marker (the Medication Level Variability Index, MLVI).

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Key information

Conditions

Age range

12 year–19 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

The Hospital For Sick Children Toronto, Toronto, Ontario, Canada

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About this study

This is a prospective, multi-center, randomized controlled trial. The study will be conducted in transplant centers in the United States and Canada. Estimated final sample size of 140 after attrition. Pediatric adolescent and young adult (age at enrollment ≥12 and < 20) transplant recipients will be eligible for participation in the study. Eligible participants will be randomly assigned to intervention or control group. An interim analysis to evaluate efficacy will be performed. Missing data will not be imputed for secondary analyses.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • The patient is ≥ 12 and < 20 years of age at enrollment.
  • ≥2.5 years after last liver transplantation.
  • Guardian's consent, adolescent assent at enrollment.
  • The patient is prescribed tacrolimus.
  • The patient's MLVI (SD of tacrolimus) was > 2 when calculated by the site for a period of 2 years prior to the review date

Exclusion criteria

  • The patient has had transplant of an organ other than liver.
  • The patient is currently listed for any organ transplantation.
  • The patient is expected to transition to another service (e.g., adult clinic, another
  • hospital) during the two years of the study.
  • Pregnant patients.
  • A temporary exclusion: the patient is not medically stable or was hospitalized for >48 consecutive hours in the past three months.
  • Site PI, study PI, or Medical Monitor determines that the patient should not be a candidate for the intervention due to factors that are not covered in the above criteria.

Treatment and study plan

Telemetric Intervention

Behavioral

Calls, scripted by a manual; the frequency of the calls varies with patient's MLVI status and preferences.

Primary outcomes

  1. Incidence of Rejection

    Time frame: 2 Years

    The incidence of biopsy-proven acute cellular rejection (number of patients experiencing at least one episode of rejection) at any time during the 2 years of follow up.Biopsy-confirmed late acute rejection, as determined by the majority of 3 masked readings of liver biopsy images by 3 pathologists that are not from the clinical site at which the patient is treated. Patients with incomplete follow-up (for example due to death, re-transplant, listing for re-transplantation), will be assumed to have experienced a rejection for the purpose of the primary analysis.

Secondary outcomes

  1. The Standard Deviation of A Series Of Tacrolimus Levels (MLVI)

    Time frame: 2 Years

    MLVI = Standard Deviation Of Tacrolimus Blood Levels

  2. Incidence of Locally Determined Biopsy Proven Rejection

    Time frame: 2 Years

  3. Rate Of Locally Determined Biopsy Proven Rejection

    Time frame: 2 Years

  4. Rate of Centrally Determined Biopsy Proven Rejection

    Time frame: 2 Years

  5. Time to Rejection From Enrollment

    Time frame: 2 Years

  6. Occurrence of Death

    Time frame: 2 Years

    Number of deaths

  7. Occurrence of Re-Listing For Transplantation

    Time frame: 2 Years

    Number of participants listing for retransplantation

  8. Mean ALT

    Time frame: 2 Years

    Mean number of achieving above threshold ALT > 150 Alanine Aminotransferase (ALT)

  9. Mean maximal ALT

    Time frame: 2 Years

    mean/maximal and ALT (defined as in MALT as the mean of all levels recorded during the study period and the maximal level recorded during the study period)

  10. Mean gGT

    Time frame: 2 Years

    Mean number of achieving above threshold GGT > 150 Gamma Glutamyl Transferase (gGT)

  11. Mean maximal gGT

    Time frame: 2 Years

    mean/maximal gGT (defined as in MALT as the mean of all levels recorded during the study period and the maximal level recorded during the study period)

Sponsors and collaborators

Lead sponsor

Icahn School of Medicine at Mount Sinai

Other

Collaborators

  • Ann & Robert H Lurie Children's Hospital of Chicago
  • Baylor College of Medicine
  • Children's Hospital Los Angeles
  • Children's Hospital of Michigan
  • Children's Hospital of Philadelphia
  • Columbia University
  • Emory-Children's Center
  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
  • Seattle Children's Hospital
  • The Hospital for Sick Children
  • University of California, Los Angeles
  • University of California, San Francisco
  • University of Miami
  • University of Pittsburgh

Registry information

Acronym: iMALT

Important dates

Study start
2018
Primary completion
2025
Study completion
2025
First posted
Oct 1, 2018
Registry last updated
Jan 7, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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