Assessment of Perceived Stress in an Observational Study Evaluating a Biopsy-sparing Surveillance Strategy in Kidney Transplant Recipients With Blood and Urinary Biomarkers Predictive of the Absence of Rejection (ABAT)
ABAT - Assessment of Perceived Stress in an Observational Study Evaluating a Biopsy-sparing Surveillance Strategy in Kidney Transplant Recipients With Blood and Urinary Biomarkers Predictive of the Absence of Rejection
There is currently no consensus recommendation regarding the routine use of surveillance kidney allograft biopsies during the first year after transplantation. As a result, the decision to perform surveillance biopsies remains center-dependent, and their long-term clinical benefit has not been conclusively demonstrated.
Although surveillance biopsy is considered the gold standard for detecting subclinical rejection, it is an invasive and costly procedure that carries a risk of complications. Furthermore, approximately 30-35% of surveillance biopsies reveal normal or near-normal histology, highlighting the need for strategies that can safely reduce unnecessary biopsies and improve patient comfort while optimizing healthcare resource utilization.
At Nantes University Hospital, three blood and urinary biomarkers predictive of the absence of rejection are routinely used to assess the relevance of performing a surveillance biopsy. The objective of this observational study is to evaluate patients' perceived stress related to the 1-year surveillance biopsy according to whether the procedure is maintained or canceled based on the results of these non-invasive biomarkers used in standard clinical practice.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: CHU Nantes département promotion
- Telefonnummer: +33 253482835
- E-mail: bp-prom-regl@chu-nantes.fr
Studiesteder
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Nantes, Frankrig, 44093
- Nantes Universitary hospital
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
The study population will consist of a prospective cohort of kidney transplant recipients followed at Nantes University Hospital over a 12-month inclusion period.
The study will compare perceived stress related to the 1-year surveillance biopsy according to whether the biopsy was performed or waived based on the results of the non-invasive biomarkers used in routine clinical practice.
Beskrivelse
Inclusion Criteria:
- Adult patients aged 18 years or older;
- Recipients of a kidney transplant from a living donor, a donor after brain death, or a donor after circulatory death;
- Patients who have provided written informed consent to participate in the ABAT study.
Exclusion Criteria:
- Pregnant or breastfeeding women;
- Patients under legal protection measures (including guardianship or curatorship);
- Patients who have undergone more than two kidney transplantations;
- Patients who have received a combined transplant or a previous transplant of another organ.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: CASE_ONLY
- Tidsperspektiver: PROSPECTIVE
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
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ABAT Study population
The study population will consist of a prospective cohort of kidney transplant followed at Nantes University Hospital over a 12-month inclusion period. |
Collection of blood and urine samples at 3 months for the assessment of blood and urinary biomarkers (these samples will not be used to guide the decision to perform or cancel the surveillance biopsy. They will be stored in the study biocollection for future ancillary biomarker analyses): One PAXgene® tube (SCR score): 2.5 mL of peripheral venous blood. One Streck® Cell-Free DNA BCT tube (dd-cfDNA): 10 mL of peripheral venous blood. One sterile urine collection tube (CXCL9/CXCL10 assay): 6 mL of fresh urine. To assess perceived stress related to the surveillance biopsy procedure, whether guided by the biomarker-based decision algorithm or not, participants will complete a self-administered questionnaire using a Visual Analog Scale (VAS) ranging from 0 to 10, where 0 corresponds to "no stress" and 10 to "the highest level of stress imaginable." |
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Perceived stress score related to the 1-year surveillance biopsy
Tidsramme: 12 months
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score ranging from 0 to 10, with higher scores indicating high stress level. |
12 months
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- RC26_0150
- 2026-A01329-42 (Anden identifikator: ANSM)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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