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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT04239703
Registration number
NCT04239703
Ethics application status
Date submitted
14/01/2020
Date registered
27/01/2020
Titles & IDs
Public title
Trifecta-Kidney cfDNA-MMDx Study
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Scientific title
Trifecta-Kidney cfDNA-MMDx Study: Comparing the DD-cfDNA Test to MMDx Microarray Test, Central HLA Antibody Test, and Histology.
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Secondary ID [1]
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ATAGC05
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Kidney Transplant Rejection
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Condition category
Condition code
Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Diagnosis / Prognosis - MMDx
Diagnosis / Prognosis - Prospera
Diagnosis / Prognosis - HLA antibody
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.
Diagnosis / Prognosis: MMDx
Portion of kidney transplant indication biopsy
Diagnosis / Prognosis: Prospera
Transplant patient blood sample
Diagnosis / Prognosis: HLA antibody
Transplant patient blood sample
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Intervention code [1]
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Diagnosis / Prognosis
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Calibration of Prospera test for T cell-mediated rejection
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Assessment method [1]
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Calibration of DD-cfDNA test cut-off values against the probability of T cell-mediated rejection in the biopsy as reported by MMDx.
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Timepoint [1]
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18 months
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Primary outcome [2]
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Calibration of Prospera test for antibody-mediated rejection
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Assessment method [2]
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Calibration of DD-cfDNA test cut-off values against the probability of antibody-mediated rejection in the biopsy as reported by MMDx.
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Timepoint [2]
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18 months
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Primary outcome [3]
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Calibration of Prospera test for kidney injury
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Assessment method [3]
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Calibration of DD-cfDNA test cut-off values against the probability of acute and chronic kidney injury in the biopsy as reported by MMDx.
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Timepoint [3]
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18 months
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Primary outcome [4]
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Report calibrated Prospera test results for rejection
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Assessment method [4]
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Report new DD-cfDNA test cut-off values for rejection
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Timepoint [4]
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6 months
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Primary outcome [5]
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Report calibrated Prospera test results for kidney injury
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Assessment method [5]
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Report new DD-cfDNA test cut-off values for acute and chronic kidney injury
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Timepoint [5]
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6 month
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Secondary outcome [1]
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Determine if Prospera blood test can replace kidney biopsy test
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Assessment method [1]
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Determine if Prospera test, as calibrated by this DD-cfDNA-HLA-MMDx study, will avoid need for indication biopsy when kidney transplant function deteriorates. This will be based on the consensus between participating clinicians.
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Timepoint [1]
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6 months
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Secondary outcome [2]
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Assessment of donor-specific antibody status
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Assessment method [2]
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Report and compare the DSA status based on centralized and local HLA antibody measurement.
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Timepoint [2]
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6 months
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Eligibility
Key inclusion criteria
* All kidney transplant recipients undergoing a kidney biopsy for clinical indications, as determined by their physician or surgeon, will be eligible to enroll in the study.
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Minimum age
No limit
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Patients will be excluded from the study if they decline participation or are unable to give informed consent or multiple organ recipients.
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Study design
Purpose
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Duration
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Selection
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/12/2019
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
1/12/2026
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Actual
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Sample size
Target
300
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Recruitment hospital [1]
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Department of Nephrology, The Royal Melbourne Hospital 1 South East - Melbourne
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Recruitment postcode(s) [1]
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VIC 3050 - Melbourne
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Recruitment outside Australia
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United States of America
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Florida
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United States of America
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Maryland
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United States of America
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Michigan
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United States of America
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Missouri
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United States of America
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Ohio
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United States of America
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Utah
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United States of America
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Virginia
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United States of America
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Washington
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Canada
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Alberta
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Canada
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British Columbia
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Croatia
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Zagreb
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Czechia
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Prague
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Germany
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Berlin
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Lithuania
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Vilnius
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Poland
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Bialystok
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Bydgoszcz
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Gdansk
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Poland
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Katowice
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Poland
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Poznan
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Poland
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Szczecin
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Warsaw
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Wroclaw
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Slovenia
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Ljubljana
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Switzerland
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State/province [24]
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Zürich
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of Alberta
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Address
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Other collaborator category [1]
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Commercial sector/industry
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Name [1]
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Natera, Inc.
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Address [1]
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Other collaborator category [2]
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Other
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Name [2]
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One Lambda
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Ethics approval
Ethics application status
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Summary
Brief summary
Demonstrate the relationship between DD-cfDNA levels and HLA antibodies in blood, and the Molecular Microscope® (MMDx) Diagnostic System results in indication biopsies.
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Trial website
https://clinicaltrials.gov/study/NCT04239703
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Trial related presentations / publications
Madill-Thomsen KS, Halloran PF. Precision diagnostics in transplanted organs using microarray-assessed gene expression: concepts and technical methods of the Molecular Microscope(R) Diagnostic System (MMDx). Clin Sci (Lond). 2024 Jun 5;138(11):663-685. doi: 10.1042/CS20220530. Halloran PF, Reeve J, Madill-Thomsen KS, Demko Z, Prewett A, Billings P; Trifecta Investigators. The Trifecta Study: Comparing Plasma Levels of Donor-derived Cell-Free DNA with the Molecular Phenotype of Kidney Transplant Biopsies. J Am Soc Nephrol. 2022 Feb;33(2):387-400. doi: 10.1681/ASN.2021091191. Epub 2022 Jan 20. Halloran PF, Reeve J, Madill-Thomsen KS, Demko Z, Prewett A, Gauthier P, Billings P, Lawrence C, Lowe D, Hidalgo LG; the Trifecta Investigators. Antibody-mediated Rejection Without Detectable Donor-specific Antibody Releases Donor-derived Cell-free DNA: Results From the Trifecta Study. Transplantation. 2023 Mar 1;107(3):709-719. doi: 10.1097/TP.0000000000004324. Epub 2023 Feb 21. Erratum In: Transplantation. 2023 Jan 01;107(1):e43. doi: 10.1097/TP.0000000000004454. Halloran PF, Madill-Thomsen KS, Reeve J. The Molecular Phenotype of Kidney Transplants: Insights From the MMDx Project. Transplantation. 2024 Jan 1;108(1):45-71. doi: 10.1097/TP.0000000000004624. Epub 2023 Dec 13. Halloran PF, Reeve J, Madill-Thomsen KS, Kaur N, Ahmed E, Cantos C, Al Haj Baddar N, Demko Z, Liang N, Swenerton RK, Zimmermann BG, Van Hummelen P, Prewett A, Rabinowitz M, Tabriziani H, Gauthier P, Billings P; Trifecta Investigators*. Combining Donor-derived Cell-free DNA Fraction and Quantity to Detect Kidney Transplant Rejection Using Molecular Diagnoses and Histology as Confirmation. Transplantation. 2022 Dec 1;106(12):2435-2442. doi: 10.1097/TP.0000000000004212. Epub 2022 Nov 22. Gauthier PT, Madill-Thomsen KS, Demko Z, Prewett A, Gauthier P, Halloran PF; Trifecta-Kidney Investigators. Distinct Molecular Processes Mediate Donor-derived Cell-free DNA Release From Kidney Transplants in Different Disease States. Transplantation. 2024 Apr 1;108(4):898-910. doi: 10.1097/TP.0000000000004877. Epub 2023 Dec 27.
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Public notes
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Contacts
Principal investigator
Name
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Philip F Halloran, MD, PhD
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Address
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University of Alberta
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Konrad S Famulski, PhD
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Address
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Country
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Phone
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1 780 492 1725
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Type
Citations or Other Details
Journal
Halloran PF, Reeve J, Madill-Thomsen KS, Demko Z, ...
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Journal
Halloran PF, Reeve J, Madill-Thomsen KS, Demko Z, ...
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Halloran PF, Madill-Thomsen KS, Reeve J. The Molec...
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Halloran PF, Reeve J, Madill-Thomsen KS, Kaur N, A...
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Gauthier PT, Madill-Thomsen KS, Demko Z, Prewett A...
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Results not provided in
https://clinicaltrials.gov/study/NCT04239703