Multi-centric Observational Study to Analyse the Diagnostic Molecular Features in the Clinical Setting of Kidney Allograft Biopsies
Trial Snapshot
- Phase
- Not Applicable
- Status
- Recruiting
- Sponsor
- University of Alberta
- Enrollment
- 500
- Locations
- 47
- Primary Endpoint
- Validate the Integrated Diagnostic System in the International Collaborative Microarray (INTERCOM) Study
Study Overview
Brief Summary
The current standard for biopsy-based diagnoses of dysfunction of kidney transplants is the Banff Classification which represents arbitrary international consensus. Recent data-driven approaches using molecular and conventional technologies indicate that mere consensus produces frequently incorrect diagnoses with potential harm to patients due to inappropriate treatment. To address this unmet need and improve diagnostics in the area of organ transplantation, the Alberta Transplant Applied Genomics Centre (ATAGC) has developed a new diagnostic system that combines the molecular and histopathological features of transplant biopsies, plus clinical and laboratory parameters, to create the first Integrated Diagnostic System. The present study will validate and refine this system in 500 prospectively unselected biopsies for clinical indications from American, Canadian and European centres in addition to 300 biopsies already collected. Due to a considerable interest and support from participating Centers, the study is further extended to 1500 prospective biopsies. Thus this is the extension of the INTERCOM study (INTERCOMEX). In addition to demonstrating the feasibility and value of this System in routine patient care and clinical trials, the study will develop and optimize a transparent and user-friendly reporting format to communicate this information to clinicians and obtain detailed feedback on how this system can best improve patient care.
Detailed Description
The study has enrolled so far 3012 biopsies from 2313 participants and the results are analyzed for these biopsies. Follow-up data is, and will be collected.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •All kidney transplant recipients ≥18yrs of age undergoing a kidney biopsy for clinical indications, as determined by their physician or surgeon, will be eligible to enrol in the study.
Exclusion Criteria
- •Patients will be excluded from the study if they decline participation or are unable to give informed consent.
Arms & Interventions
Kidney Transplant Biopsies for Cause
The study population includes patients with a functioning kidney transplant undergoing a biopsy for clinical indications as standard of care to determine the cause of their graft dysfunction (deterioration in graft function, delayed graft function, proteinuria).
Outcomes
Primary Outcomes
Validate the Integrated Diagnostic System in the International Collaborative Microarray (INTERCOM) Study
Time Frame: 2013-2016
1. The rejection classifier predicts Banff diagnosis of any rejection: ABMR, TCMR, or mixed ABMR and TCMR; 2. The TCMR classifier predicts the presence of Banff TCMR lesions/diagnoses; 3. The ABMR classifier predicts the presence of ABMR lesions; 4. In late (\>1yr) biopsies for clinical indications, the failure classifier predicts failure within three years.
Secondary Outcomes
- Demonstrate the feasibility of molecular phenotyping of 300 + 500 kidney transplant biopsies for clinical indications.(2014-2016)
- Demonstrate the feasibility of molecular phenotyping of 500 biopsies in real time i.e. returning the molecular phenotyping report in two working days upon sample arrival.(2015-2016)
Investigators
Philip Halloran
Professor
University of Alberta