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- Klinische proef NCT07549503
Vroege signalen van de overgang van immuun-quiescentie naar activatie in het leverallograftmicro-omgeving en in de circulatie (iSYNAPSE)
Vroege signalen van de overgang van immuunquiescentie naar activatie in het leverallograft-micro-milieu en in de circulatie
This is a prospective multi-center, longitudinal study to determine efficacy of 50 percent Immunosuppression (IS) reduction. One hundred fully eligible participants will reduce IS by 50 percent in two steps. Liver tests will be checked every 0.5 months through month 4, once a month through month 12, and every other month through month 18. Liver transplant (LTx) center visits will take place at screening, months 6, 12 and 18 after initiating IS dose reduction. A protocol driven liver biopsy to adjudicate the endpoint will be performed at 18 months. The duration of the study from time of starting IS dose reduction to the primary endpoint assessment is 18 months.
The primary objective is to assess the efficacy of 50 percent IS dose reduction in children with Liver transplants (LTxs)
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Studietype
Inschrijving (Geschat)
Fase
- Fase 2
Contacten en locaties
Studiecontact
- Naam: Ada Chao
- Telefoonnummer: 415-353-7004
- E-mail: ada.chao@ucsf.edu
Studie Locaties
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California
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San Francisco, California, Verenigde Staten, 94143
- Werving
- UCSF Benioff Children's Hospital
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Contact:
- Emily Stekol Moore
- E-mail: emily.stekol@ucsf.edu
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Colorado
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Aurora, Colorado, Verenigde Staten, 80045
- Nog niet aan het werven
- Children's Hospital Colorado
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Contact:
- Michelle Landis
- E-mail: Michelle.landis@childrenscolorado.org
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District of Columbia
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Washington D.C., District of Columbia, Verenigde Staten, 20007
- Werving
- MedStar Georgetown University Hospital
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Contact:
- Iryna Asipenka
- E-mail: Iryna.M.Asipenka@medstar.net
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Georgia
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Atlanta, Georgia, Verenigde Staten, 30307
- Nog niet aan het werven
- Emory University School of Medicine/Children's Healthcare of Atlanta
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Contact:
- Jordyn Turner
- Telefoonnummer: 404-785-3690
- E-mail: Jordyn.turner@choa.org
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Illinois
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Chicago, Illinois, Verenigde Staten, 60611
- Werving
- Ann and Robert H. Lurie Children's Hospital of Chicago
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Contact:
- Catherine Chapin
- Telefoonnummer: 312-227-5511
- E-mail: cchapin@luriechildrens.org
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New York
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New York, New York, Verenigde Staten, 10029
- Werving
- Icahn School of Medicine at Mount Sinai
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Contact:
- Puja Patel
- Telefoonnummer: 212-659-8039
- E-mail: puja.patel4@mountsinai.org
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New York, New York, Verenigde Staten, 10032
- Werving
- Columbia University Medical Center
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Contact:
- Ava Whalen
- E-mail: w3876@cumc.columbia.edu
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Ohio
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Cincinnati, Ohio, Verenigde Staten, 45229
- Werving
- Cincinnati Children's Hospital Medical Center
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Contact:
- Jennifer Hawkins
- Telefoonnummer: 513-636-7818
- E-mail: jennifer.hawkins@cchmc.org
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Pennsylvania
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Philadelphia, Pennsylvania, Verenigde Staten, 15224
- Nog niet aan het werven
- Children's Hospital of Philadelphia
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Contact:
- Bryanna Domenick
- Telefoonnummer: 267-425-1078
- E-mail: DOMENICKB@CHOP.edu
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Pittsburgh, Pennsylvania, Verenigde Staten, 15213
- Werving
- University of Pittsburgh Medical Center
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Contact:
- Daniel Pieratt
- E-mail: pierattdw@upmc.edu
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Tennessee
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Nashville, Tennessee, Verenigde Staten, 37232
- Nog niet aan het werven
- Monroe Carell Jr. Children's Hospital at Vanderbilt
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Contact:
- Carly Bhave
- E-mail: carly.bhave@vumc.org
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Participant and parent or guardian must be able to understand and provide informed assent and consent, respectively
- Recipient of a living or deceased donor Liver transplant (LTx) at <7 years of age
- > 3 years but <7 years after LTx at the time of study enrollment
- Stable liver tests defined as baseline serum alanine aminotransferase (ALT) level < 30 IU/l and gamma-glutamyl transferase (GGT) level < 50 IU/l (based on the average of the 3 most recent values prior to screening; all must be within 1 year of screening; 2 must be within 6 months of screening)
- No Acute rejection (AR) or chronic rejection within 12 months of enrollment
- Tacrolimus monotherapy for > 6 months with baseline 12-hour trough levels <8 ng/mL (based on the average of 3 values prior to screening; all must be within 1 year of screening; 2 must be within 6 months of screening)
- Participants of childbearing potential must have a negative pregnancy test upon study entry
Exclusion Criteria:
- Liver transplant (LTx) for autoimmune disease, including autoimmune hepatitis or primary sclerosing cholangitis
- LTx for hepatitis B or hepatitis C
- Recipient of any other organ transplant or liver re-transplant, except for patients who have a repeat LTx within 30 days of first LTx who are eligible for enrollment
- >=50 percent dose increase in tacrolimus within 12 months of enrollment
- Discontinued a second Immunosuppression (IS) agent within 12 months of enrollment
- Systemic illness requiring chronic or recurrent use of IS for which there is a risk of reactivation if tacrolimus is reduced
- Use of medication to treat systemic conditions which in the judgement of the investigator could influence results of the study
- Active or chronic infection requiring treatment
- Inability or unwillingness to comply with the study protocol
- Use of investigational drug within 4 weeks (or 5 half-lives of investigational drug, whichever is longer) of enrollment
- Has any condition that, in the opinion of the investigator, will interfere with safe participation in the trial
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: IS dose reduction
Eligible participants will reduce immunosuppression (IS) by 50 percent in two steps. For subjects taking tacrolimus once daily:
For subjects taking tacrolimus twice daily:
For participants taking different doses of tacrolimus in the morning and evening, the clinical site will confer will the protocol chair and PI to determine the schedule for IS reduction |
Prospective multi-center, longitudinal study to determine the success rate of 50% immunosuppression (IS) dose reduction. One hundred fully eligible participants will reduce IS by 50% in two steps |
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Achieving successful 50 percent Immunosuppression (IS) reduction
Tijdsspanne: At 18 months
|
Defined as meeting both biochemical and histological criteria of stability |
At 18 months
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Proportion of Acute Rejection (AR) Episodes Within Each Banff Severity Category
Tijdsspanne: At 18 months
|
The proportion of acute rejection (AR) episodes within each observed Banff severity category will be measured. |
At 18 months
|
|
The proportion of participants who experience Acute rejection (AR)
Tijdsspanne: At 18 months
|
Defined as either biopsy-proven or clinical AR |
At 18 months
|
|
Achieving clinically successful 50 percent Immunosuppression (IS) reduction
Tijdsspanne: At 18 months
|
Defined as meeting biochemical but not histological criteria of stability |
At 18 months
|
Medewerkers en onderzoekers
Onderzoekers
- Studie stoel: Sandy Feng, MD, Ph.D., University of California San Francisco School of Medicine: Transplantation
- Studie stoel: John Bucuvalas, M.D., Icahn School of Medicine at Mount Sinai: Transplantation
Publicaties en nuttige links
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- DAIT RTB-018
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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