- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT01879124
Resistive Index Measurements After Kidney Transplantation
Correlation Between Renal Vascular Resistive Index, Renal Allograft Histology and Outcome
Studieoversikt
Status
Forhold
Detaljert beskrivelse
Since March 2004, and as part of routine clinical practice, protocol renal allograft biopsies are routinely performed at implantation and at 3, 12 and 24 months after transplantation, in all patients who receive a kidney transplant at the University Hospitals Leuven, unless there is a medical contra-indication or patient refusal to undergo this procedure. The biopsies are scheduled using a dedicated Microsoft Access database ("Biopsy Database"), that is maintained on the central servers of the University Hospitals Leuven. Patients who have an unexplained change in renal allograft function, undergo additional clinically indicated indication biopsies. These biopsies are also recorded in the aforementioned Microsoft Access Database.
All clinical data, including pretransplant donor and recipient characteristics, and post-transplant follow-up data are directly stored and maintained in a prospectively collected electronic database (CCL database until 06/2012, transferred to the central KWS database in 2012). This electronic database is the only existing clinical database for these patients, and contains all clinical patient charts. No written records are collected.
All renal allograft biopsies will be rescored by a single renal pathologist according to the most recent Banff classification, blinded for the clinical parameters and timing of the biopsy. These rescoring data are directly entered in the dedicated Microsoft Access database ("Biopsy Database").
Just prior to performing a renal allograft biopsy with ultrasound guidance, and as part of the routine clinical procedure, duplex measurements are performed by the radiologist who will perform the biopsy. The peak systolic velocity (Vmax) and the minimal diastolic velocity (Vmin) are determined in each patient in two to three representative interlobar arteries. The resistive index is calculated as [1 - (V min/V max)]. This procedure is repeated at three different places in the kidney (lower, interpolar and upper pole). These data are directly entered in the central electronic clinical database system (KWS, see above).
All electronic data will be transferred to a SAS database at time of data extraction.
Studietype
Registrering (Faktiske)
Kontakter og plasseringer
Studiesteder
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Leuven, Belgia, 3000
- Universitaire Ziekenhuizen Leuven
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
Single kidney transplantation
Exclusion Criteria:
None
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
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Kidney transplant recipients
All de novo renal allograft recipients transplanted at the University Hospitals Leuven between March 2004 and October 2007
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
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Overall renal allograft survival
Tidsramme: 7 years after transplantation
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7 years after transplantation
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Death-censored graft survival
Tidsramme: 7 years after transplantation
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7 years after transplantation
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Patient survival
Tidsramme: 7 years after transplantation
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7 years after transplantation
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Reduction of 50% or more in the eGFR from the value measured at the time of ultrasonography
Tidsramme: 7 years after transplantation
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7 years after transplantation
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Samarbeidspartnere og etterforskere
Etterforskere
- Hovedetterforsker: Maarten Naesens, MD PhD, Universitaire Ziekenhuizen KU Leuven
Publikasjoner og nyttige lenker
Studierekorddatoer
Studer hoveddatoer
Studiestart
Primær fullføring (Faktiske)
Studiet fullført (Faktiske)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- KidneyTX-UZLEUVEN-RI
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