Forbedring av medisinoverholdelse hos ungdom som hadde en levertransplantasjon (iMALT)
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).
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
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.
Studietype
Registrering (Faktiske)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiesteder
-
-
Ontario
-
Toronto, Ontario, Canada, M5G1X8
- The Hospital For Sick Children Toronto
-
-
-
-
California
-
Los Angeles, California, Forente stater, 90027
- Children's Hospital Los Angeles
-
Los Angeles, California, Forente stater, 90095
- Mattel Children's Hospital UCLA
-
San Francisco, California, Forente stater, 94107
- Benioff Children's Hospital UCSF
-
-
Florida
-
Miami, Florida, Forente stater, 33136
- Miami Transplant Institute
-
-
Georgia
-
Atlanta, Georgia, Forente stater, 30322
- Children's Healthcare of Atlanta/Emory
-
-
Illinois
-
Chicago, Illinois, Forente stater, 60611
- Lurie Children's Hospital
-
-
Michigan
-
Ann Arbor, Michigan, Forente stater, 48109
- C.S.Mott Children's Hospital
-
-
New York
-
New York, New York, Forente stater, 10032
- Columbia University Medical Center
-
New York, New York, Forente stater, 10029
- Icahn School of Medicine at Mount Sinai
-
-
Pennsylvania
-
Philadelphia, Pennsylvania, Forente stater, 19104
- Children's Hospital of Philadelphia
-
Pittsburgh, Pennsylvania, Forente stater, 15224
- Children's Hospital of Pittsburgh
-
-
Texas
-
Houston, Texas, Forente stater, 77030
- Texas Children's Hospital
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
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.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Enkelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: Telemetric Intervention Arm
Adolescent with MLVI>2 to receive the telemetric intervention. |
Calls, scripted by a manual; the frequency of the calls varies with patient's MLVI status and preferences. |
|
Ingen inngripen: Standard of Care Arm
Adolescent with MLVI>2 to receive standard of care. |
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of Participants Experiencing at Least One Episode of Rejection
Tidsramme: 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), was assumed to have experienced a rejection for the purpose of the primary analysis. |
2 Years
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
The Standard Deviation of A Series Of Tacrolimus Levels (MLVI)
Tidsramme: 2 Years
|
Medication level variability index (MLVI) score is defined as the Standard Deviation (SD) Of Tacrolimus Blood Levels over time during follow-up. MLVI identifies medication-taking behavior. A higher SD indicates less consistent adherence. |
2 Years
|
|
Number of Participants With Locally and Centrally Determined Rejection by Biopsy
Tidsramme: 2 Years
|
Number of Participants with Locally and Centrally Determined Rejection Biopsy Proven Rejection |
2 Years
|
|
Number of Locally Determined Rejections by Biopsy Per Patient During Follow-up
Tidsramme: 2 Years
|
Rate Of Locally Determined Biopsy Proven Rejection determined by Number of locally determined rejections by biopsy per patient during follow-up |
2 Years
|
|
Time to First Locally Rejection From Enrollment
Tidsramme: about 12 months
|
Time to first locally determined rejection by biopsy from enrollment |
about 12 months
|
|
Time to First Centrally Determined Rejection
Tidsramme: up to 12 months
|
Time, in months, to first centrally determined rejection by biopsy from enrollment |
up to 12 months
|
|
Occurrence of Death
Tidsramme: 2 Years
|
Number of deaths |
2 Years
|
|
Occurrence of Re-Listing For Transplantation
Tidsramme: 2 Years
|
Number of participants listing for retransplantation |
2 Years
|
|
Number of Participants With ALT >150 U/L
Tidsramme: 2 Years
|
Number of Participants achieving above the predetermined threshold alanine trans aminase (ALT) > 150 |
2 Years
|
|
Mean and Maximal ALT Level
Tidsramme: 2 Years
|
mean and maximal 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) |
2 Years
|
|
Number of Participants Achieving Mean GGT > 150
Tidsramme: 2 Years
|
Number of participants achieving mean number above threshold GGT > 150 Gamma Glutamyl Transferase (gGT) |
2 Years
|
|
Mean and Maximal gGT
Tidsramme: 2 Years
|
mean and 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) |
2 Years
|
Samarbeidspartnere og etterforskere
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Eyal Shemesh, MD, Icahn School of Medicine at Mount Sinai
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Mellon L, Doyle F, Hickey A, Ward KD, de Freitas DG, McCormick PA, O'Connell O, Conlon P. Interventions for increasing immunosuppressant medication adherence in solid organ transplant recipients. Cochrane Database Syst Rev. 2022 Sep 12;9(9):CD012854. doi: 10.1002/14651858.CD012854.pub2.
- Shemesh E, Anand R, Annunziato RA, Fredericks EM, Garcia J, Gupta NA, Kleinman LC, Kriegermeier A, Mysore KR, Ng VL, Lobritto SJ, Patel S, Perito ER, Rand EB, Romero R, Venick RS, Duncan-Park S, Mitchell J, Anderson SG, Stuber ML, Reyes-Mugica M, Mazariegos GV, Shneider BL. A remote intervention to improve medication nonadherence guided by a marker of risk derived from the electronic health records of adolescent transplant recipients. Am J Transplant. 2026 Sep;26(9):2099-2110. doi: 10.1016/j.ajt.2026.04.030. Epub 2026 May 27.
- Tutino R, Annunziato R, Dunphy C, Anand R, Mitchell J, Stuber M, Shemesh E, Duncan-Park S; for iMALT. Development of a Targeted, Telehealth Intervention: Experiences From the Improving Medication Adherence in Adolescents and Young Adults Following a Liver Transplantation (iMALT) Multisite Trial. Pediatr Transplant. 2025 Aug;29(5):e70109. doi: 10.1111/petr.70109.
Hjelpsomme linker
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Andre studie-ID-numre
- GCO 18-0061
- U01DK119200 (U.S. NIH-stipend/kontrakt)
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Studerer et amerikansk FDA-regulert enhetsprodukt
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .