NFAT-Dependent Cytokine Gene Expression for Immune Monitoring in Kidney Transplant Patients
15. maj 2020 opdateret af: University of California, San Francisco
The purpose of this study is to compare two different ways of monitoring the immune system to determine how to manage the doses of anti-rejection medications.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
This is a single center randomized controlled trial investigating the efficacy and safety of adjusting calcineurin inhibitor (CNI) dosing based on Nuclear Factor of Activating T Cells (NFAT)-dependent cytokine gene expression as compared to standard of care adjustments based on trough level.
Before any study-related evaluations are performed, the patient must give written informed consent.
Once consent is obtained, a patient's eligibility to participate in the study will be assessed within 4 weeks of their 6 month management biopsy.
Approximately 40 patients who meet inclusion criteria will be randomized at University of California, San Francisco (UCSF).
Eligible patients include any patient maintained on triple therapy with tacrolimus, mycophenolate mofetil ,and prednisone who has had no prior rejection episodes and who has undergone a 6 month management kidney biopsy that shows no evidence of acute cellular rejection or antibody mediated rejection.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
40
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
California
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San Francisco, California, Forenede Stater, 94143
- University of California, San Francisco
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år til 80 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria: Eligible patients include any patient maintained on triple therapy with tacrolimus, mycophenolate mofetil ,and prednisone who has had no prior rejection episodes and who has undergone a 6 month management kidney biopsy that shows no evidence of acute cellular rejection or antibody mediated rejection.
Exclusion Criteria: Any patient not maintained on triple therapy with tacrolimus, mycophenolate mofetil and steroids and/or who had evidence of rejection on 6- month management biopsy.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: Dose adjust group (NFAT)
Within 4 weeks of a 6 month management biopsy, if eligibility is confirmed, NFAT dependent cytokines including IL-2, IFNg, and GMCSF at times C0 and C1.5 will be performed with the residual expression calculated based on the ratio of C1.5/C0 x 100%.
If the average residual expression of the 3 cytokines is <20%, the CNI daily dose will be reduced by 15%.
If the average residual gene expression of the 3 cytokines is > 60% the CNI daily dose will be increased by 15%.
|
If the average residual expression of the 3 cytokines is <20%, the CNI daily dose will be reduced by 15%.
If the average residual gene expression of the 3 cytokines is > 60% the CNI daily dose will be increased by 15%.
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Ingen indgriben: Standard of care group
A CNI trough level will be obtained.
Adjustments of CNI will be based on target trough drug levels as per standard of care.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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•Number of adjustments made to tacrolimus regimen at 6 months; •Lack of correlation between NFAT-dependent cytokine expression and tacrolimus trough levels
Tidsramme: 6 Months
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6 Months
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Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
1 year (18 months post-transplant) biopsy proven acute rejections episodes
Tidsramme: 12 Months
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12 Months
|
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1 year (18 months post-transplant) cumulative infectious complications
Tidsramme: 12 Months
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12 Months
|
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1 year (18 months post-transplant) GFR
Tidsramme: 12 Months
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12 Months
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1 year (18 months post-transplant) allograft survival
Tidsramme: 12 Months
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12 Months
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1 year (18 months post-transplant) patient survival
Tidsramme: 12 Months
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12 Months
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Flavio Vincenti, M.D., University of California, San Francisco
- Ledende efterforsker: Allison Webber, M.D., University of California, San Francisco
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Giese T, Sommerer C, Zeier M, Meuer S. Monitoring immunosuppression with measures of NFAT decreases cancer incidence. Clin Immunol. 2009 Sep;132(3):305-11. doi: 10.1016/j.clim.2009.03.520. Epub 2009 Apr 23.
- Giese T, Zeier M, Schemmer P, Uhl W, Schoels M, Dengler T, Buechler M, Meuer S. Monitoring of NFAT-regulated gene expression in the peripheral blood of allograft recipients: a novel perspective toward individually optimized drug doses of cyclosporine A. Transplantation. 2004 Feb 15;77(3):339-44. doi: 10.1097/01.TP.0000109260.00094.01.
- Sommerer C, Giese T, Schmidt J, Meuer S, Zeier M. Ciclosporin A tapering monitored by NFAT-regulated gene expression: a new concept of individual immunosuppression. Transplantation. 2008 Jan 15;85(1):15-21. doi: 10.1097/01.tp.0000296824.58884.55.
- Sommerer C, Zeier M, Meuer S, Giese T. Individualized monitoring of nuclear factor of activated T cells-regulated gene expression in FK506-treated kidney transplant recipients. Transplantation. 2010 Jun 15;89(11):1417-23. doi: 10.1097/TP.0b013e3181dc13b6.
- Hartmann B, Schmid G, Graeb C, Bruns CJ, Fischereder M, Jauch KW, Heeschen C, Guba M. Biochemical monitoring of mTOR inhibitor-based immunosuppression following kidney transplantation: a novel approach for tailored immunosuppressive therapy. Kidney Int. 2005 Dec;68(6):2593-8. doi: 10.1111/j.1523-1755.2005.00731.x.
- Leogrande D, Teutonico A, Ranieri E, Saldarelli M, Gesualdo L, Schena FP, Di Paolo S. Monitoring biological action of rapamycin in renal transplantation. Am J Kidney Dis. 2007 Aug;50(2):314-25. doi: 10.1053/j.ajkd.2007.05.002.
- Belouski SS, Wilkinson J, Thomas J, Kelley K, Wang SW, Suggs S, Ferbas J. Utility of lyophilized PMA and ionomycin to stimulate lymphocytes in whole blood for immunological assays. Cytometry B Clin Cytom. 2010 Jan;78(1):59-64. doi: 10.1002/cyto.b.20492.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
2. maj 2013
Primær færdiggørelse (Faktiske)
13. august 2016
Studieafslutning (Faktiske)
17. april 2017
Datoer for studieregistrering
Først indsendt
16. januar 2013
Først indsendt, der opfyldte QC-kriterier
16. januar 2013
Først opslået (Skøn)
18. januar 2013
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
21. maj 2020
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
15. maj 2020
Sidst verificeret
1. maj 2020
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- NFAT dependent cytokines
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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