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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT01299168
Other study ID # ATAGC-001
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date May 2011
Est. completion date June 2025

Study information

Verified date June 2024
Source University of Alberta
Contact Philip F Halloran, MD PhD
Phone 1 780 492-6160
Email phallora@ualberta.ca
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial 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.


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.


Recruitment information / eligibility

Status Recruiting
Enrollment 500
Est. completion date June 2025
Est. primary completion date December 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility 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.

Study Design


Related Conditions & MeSH terms

  • Development of Reporting System for Molecular Diagnosis
  • Disease
  • Incorporate Molecular Diagnosis Into Diagnostic Standards
  • Validation Study of Molecular Diagnostic System

Locations

Country Name City State
Austria Medical University of Vienna Vienna
Canada Department of Medicine, University of Alberta Edmonton Alberta
Canada University of British Columbia, St. Paul's Hospital Vancouver British Columbia
Croatia University Hospital Merkur Zagreb
Czechia Institute for Experimental and Clinical Medicine (IKEM) Prague
France Hopital Necker Paris
France Hopital St. Louis Paris
Germany Charité - Universitätmedizin Berlin Berlin
Germany Medizinische Hochschule Hannover
Ireland Beaumont Hospital Dublin
Korea, Republic of Department of Surgery, University of Usan, College of Medicine Seoul
Poland Pomeranian Medical University in Szczecin Szczecin
Slovenia University of Ljubljana Ljubljana
Spain Vall d'Hebron Hospital Barcelona
Switzerland University Hospital Zurich Zürich
United Kingdom Manchester Royal Infirmary Manchester
United States University of Michigan Health System Ann Arbor Michigan
United States University of Maryland School of Medicine Baltimore Maryland
United States University of Alabama Birmingham Alabama
United States Montefiore Medical Center Bronx New York
United States Pinnacle Transplant Associates Harrisburg Pennsylvania
United States University of Wisconsin School of Medicine and Public Health Madison Wisconsin
United States University of Minnesota Minneapolis Minnesota
United States Virginia Commonwealth University School of Medicine Richmond Virginia
United States Barnes-Jewish Hospital Saint Louis Missouri
United States Texas Transplant Institute - Methodist Healthcare System San Antonio Texas

Sponsors (1)

Lead Sponsor Collaborator
University of Alberta

Countries where clinical trial is conducted

United States,  Austria,  Canada,  Croatia,  Czechia,  France,  Germany,  Ireland,  Korea, Republic of,  Poland,  Slovenia,  Spain,  Switzerland,  United Kingdom, 

References & Publications (22)

Aubert O, Loupy A, Hidalgo L, Duong van Huyen JP, Higgins S, Viglietti D, Jouven X, Glotz D, Legendre C, Lefaucheur C, Halloran PF. Antibody-Mediated Rejection Due to Preexisting versus De Novo Donor-Specific Antibodies in Kidney Allograft Recipients. J A — View Citation

Einecke G, Reeve J, Gupta G, Bohmig GA, Eskandary F, Bromberg JS, Budde K, Halloran PF; INTERCOMEX investigators. Factors associated with kidney graft survival in pure antibody-mediated rejection at the time of indication biopsy: Importance of parenchymal injury but not disease activity. Am J Transplant. 2021 Apr;21(4):1391-1401. doi: 10.1111/ajt.16161. Epub 2020 Jul 31. — View Citation

Eskandary F, Bond G, Kozakowski N, Regele H, Marinova L, Wahrmann M, Kikic Z, Haslacher H, Rasoul-Rockenschaub S, Kaltenecker CC, Konig F, Hidalgo LG, Oberbauer R, Halloran PF, Bohmig GA. Diagnostic Contribution of Donor-Specific Antibody Characteristics — View Citation

Halloran PF, Bohmig GA, Bromberg J, Einecke G, Eskandary FA, Gupta G, Myslak M, Viklicky O, Perkowska-Ptasinska A, Madill-Thomsen KS; INTERCOMEX Investigators. Archetypal Analysis of Injury in Kidney Transplant Biopsies Identifies Two Classes of Early AKI — View Citation

Halloran PF, Chang J, Famulski K, Hidalgo LG, Salazar ID, Merino Lopez M, Matas A, Picton M, de Freitas D, Bromberg J, Seron D, Sellares J, Einecke G, Reeve J. Disappearance of T Cell-Mediated Rejection Despite Continued Antibody-Mediated Rejection in Lat — View Citation

Halloran PF, Famulski KS, Reeve J. Molecular assessment of disease states in kidney transplant biopsy samples. Nat Rev Nephrol. 2016 Sep;12(9):534-48. doi: 10.1038/nrneph.2016.85. Epub 2016 Jun 27. — View Citation

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. — View Citation

Halloran PF, Matas A, Kasiske BL, Madill-Thomsen KS, Mackova M, Famulski KS. Molecular phenotype of kidney transplant indication biopsies with inflammation in scarred areas. Am J Transplant. 2019 May;19(5):1356-1370. doi: 10.1111/ajt.15178. Epub 2018 Dec — View Citation

Halloran PF, Merino Lopez M, Barreto Pereira A. Identifying Subphenotypes of Antibody-Mediated Rejection in Kidney Transplants. Am J Transplant. 2016 Mar;16(3):908-20. doi: 10.1111/ajt.13551. Epub 2016 Jan 6. — View Citation

Halloran PF, Pereira AB, Chang J, Matas A, Picton M, De Freitas D, Bromberg J, Seron D, Sellares J, Einecke G, Reeve J. Microarray diagnosis of antibody-mediated rejection in kidney transplant biopsies: an international prospective study (INTERCOM). Am J — View Citation

Halloran PF, Pereira AB, Chang J, Matas A, Picton M, De Freitas D, Bromberg J, Seron D, Sellares J, Einecke G, Reeve J. Potential impact of microarray diagnosis of T cell-mediated rejection in kidney transplants: The INTERCOM study. Am J Transplant. 2013 — View Citation

Halloran PF, Reeve J, Akalin E, Aubert O, Bohmig GA, Brennan D, Bromberg J, Einecke G, Eskandary F, Gosset C, Duong Van Huyen JP, Gupta G, Lefaucheur C, Malone A, Mannon RB, Seron D, Sellares J, Weir M, Loupy A. Real Time Central Assessment of Kidney Tran — View Citation

Halloran PF, Venner JM, Famulski KS. Comprehensive Analysis of Transcript Changes Associated With Allograft Rejection: Combining Universal and Selective Features. Am J Transplant. 2017 Jul;17(7):1754-1769. doi: 10.1111/ajt.14200. Epub 2017 Feb 25. — View Citation

Loupy A, Lefaucheur C, Vernerey D, Chang J, Hidalgo LG, Beuscart T, Verine J, Aubert O, Dubleumortier S, Duong van Huyen JP, Jouven X, Glotz D, Legendre C, Halloran PF. Molecular microscope strategy to improve risk stratification in early antibody-mediate — View Citation

Madill-Thomsen K, Perkowska-Ptasinska A, Bohmig GA, Eskandary F, Einecke G, Gupta G, Halloran PF; MMDx-Kidney Study Group. Discrepancy analysis comparing molecular and histology diagnoses in kidney transplant biopsies. Am J Transplant. 2020 May;20(5):1341 — View Citation

Madill-Thomsen KS, Bohmig GA, Bromberg J, Einecke G, Eskandary F, Gupta G, Myslak M, Viklicky O, Perkowska-Ptasinska A, Solez K, Halloran PF; the INTERCOMEX Investigators. Relating Molecular T Cell-mediated Rejection Activity in Kidney Transplant Biopsies — View Citation

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. — View Citation

Madill-Thomsen KS, Wiggins RC, Eskandary F, Bohmig GA, Halloran PF. The Effect of Cortex/Medulla Proportions on Molecular Diagnoses in Kidney Transplant Biopsies: Rejection and Injury Can Be Assessed in Medulla. Am J Transplant. 2017 Aug;17(8):2117-2128. — View Citation

Reeve J, Bohmig GA, Eskandary F, Einecke G, Gupta G, Madill-Thomsen K, Mackova M, Halloran PF; INTERCOMEX MMDx-Kidney Study Group. Generating automated kidney transplant biopsy reports combining molecular measurements with ensembles of machine learning cl — View Citation

Reeve J, Bohmig GA, Eskandary F, Einecke G, Lefaucheur C, Loupy A, Halloran PF; MMDx-Kidney study group. Assessing rejection-related disease in kidney transplant biopsies based on archetypal analysis of molecular phenotypes. JCI Insight. 2017 Jun 15;2(12) — View Citation

Reeve J, Chang J, Salazar ID, Lopez MM, Halloran PF. Using Molecular Phenotyping to Guide Improvements in the Histologic Diagnosis of T Cell-Mediated Rejection. Am J Transplant. 2016 Apr;16(4):1183-92. doi: 10.1111/ajt.13572. Epub 2016 Jan 5. — View Citation

Sikosana MLN, Reeve J, Madill-Thomsen KS, Halloran PF; INTERCOMEX Investigators. Using Regression Equations to Enhance Interpretation of Histology Lesions of Kidney Transplant Rejection. Transplantation. 2024 Feb 1;108(2):445-454. doi: 10.1097/TP.00000000 — View Citation

* Note: There are 22 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Validate the Integrated Diagnostic System in the International Collaborative Microarray (INTERCOM) Study The rejection classifier predicts Banff diagnosis of any rejection: ABMR, TCMR, or mixed ABMR and TCMR;
The TCMR classifier predicts the presence of Banff TCMR lesions/diagnoses;
The ABMR classifier predicts the presence of ABMR lesions;
In late (>1yr) biopsies for clinical indications, the failure classifier predicts failure within three years.
2013-2016
Secondary Demonstrate the feasibility of molecular phenotyping of 300 + 500 kidney transplant biopsies for clinical indications. To test the hypothesis that the molecular phenotype of a newly acquired sample predicts the histologic and clinical features of this sample. 2014-2016
Secondary 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. Refine the reports based on feedback from the participants. 2015-2016