Diagnostic and Therapeutic Applications of Microarrays in Lung Transplantation (INTERLUNG)

May 25, 2026 updated by: Philip Halloran, University of Alberta

Multi-Centric Observational Study to Analyze the Diagnostic Molecular Features in the Clinical Setting of Lung Allograft Biopsies

Objective: To evaluate the potential impact of molecular phenotyping of transbronchial biopsies in lung transplant recipients with allograft dysfunction, and the potential for developing a safer endobronchial mucosal biopsy format.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The current standard for biopsy-based diagnoses of dysfunction of lung transplants is the International Society of Heart and Lung Transplantation (ISHLT) classification applied to transbronchial biopsies, which represents an arbitrary international consensus. Recent data-driven approaches using molecular and conventional technologies indicate that this system produces frequently incorrect diagnoses with potential harm to patients due to inappropriate treatment. especially in relationship to the correct diagnosis of chronic lung allograft dysfunction is a pressing need. To address this unmet need and improve diagnostics in the area of organ transplantation, the Alberta Transplant Applied Genomics Centre (ATAGC, University of Alberta) has developed a new diagnostic system - the Molecular Microscope® Diagnostic System (MMDx) that interprets biopsies in terms of their molecular phenotype. The MMDx, developed first in kidney transplant biopsies with thoroughly established phenotypes, will now be adapted to lung transplant transbronchial biopsies (TBBs). Microarray analysis of lung allograft biopsy specimens will be compared to conventional allograft phenotyping, including clinical, physiologic, radiographic and histological assessment. The present study will use the MMDx™ system to assess and report TBBs, and validate and refine this system in 300 unselected prospectively collected lung TBBs. A subset of the study will examine the third bifurcation mucosal endobronchial biopsies (3BMBs) paired with TBBs from 50 patients to see if the safer 3BMBs can substitute for the TBB to be used by MMDx™. Due to a considerable interest and support from participating Centers, the study is further extended and collected 1032 TBBs and 602 3BMBs from 849 patients. This this is the extension of the INTERLUNG study - INTERLUNGEX.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
700

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Australia
      • Melbourne, Australia
        • Completed
        • The Alfred Hospital, Monash University
  • Austria
      • Vienna, Austria
        • Completed
        • Department of Thoracic Surgery, Medical University of Vienna
  • Canada
    • Alberta
      • Edmonton, Alberta, Canada, T6G 2E1
        • Recruiting
        • Alberta Transplant Applied Genomics Centre, University of Alberta
        • Contact:
        • Principal Investigator:
          • Philip F Halloran, MD, PhD
      • Edmonton, Alberta, Canada, T6G 2G3
        • Recruiting
        • Department of Medicine, University of Alberta
        • Contact:
        • Principal Investigator:
          • Kieran Halloran, MD
        • Sub-Investigator:
          • Justin Weinkauf, MD
        • Sub-Investigator:
          • Alim Hirji, MD
    • Ontario
      • Toronto, Ontario, Canada, M5G 2C4
        • Completed
        • University Health Network, Toronto General Hospital
  • Czechia
      • Prague, Czechia
        • Recruiting
        • Charles University/Hospital Motol
        • Contact:
        • Principal Investigator:
          • Jan Havlin, Dr
  • Poland
      • Szczecin, Poland, 70891
        • Completed
        • Thoracic Surgery Transplant Clinic
  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85013
        • Recruiting
        • St. Joseph's Hospital and Medical Center 350 West Thomas Road, Floor 8HLT
        • Principal Investigator:
          • Rajat Walia, MD
        • Contact:
    • Maryland
      • Baltimore, Maryland, United States, 21201
        • Completed
        • University of Maryland School of Medicine
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Completed
        • Division of Pulmonary and Critical Care, Washington University School of Medicine
    • Texas
      • San Antonio, Texas, United States, 21201
        • Completed
        • University of Texas at San Antonio

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Patients with functioning lung transplant biopsied to determine their graft dysfunction or to confirm good function as per standard of care.

Description

Inclusion Criteria:

  • All lung transplant recipients undergoing a biopsy as determined by their surgeon or physician.

Exclusion Criteria:

  • Patients who declined participation or unable to give informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Report the molecular scores (probability) of lung transplant disease in a reference set of 600 transbronchial biopsies.
Time Frame: two years
Molecular classifier predicts antibody mediated and T cell mediated rejection, and chronic allograft dysfunction.
two years
Report the molecular diagnoses of the MMDx-TBB system
Time Frame: two years
Compare MMDx readings to standard-of-care TBB histology and clinical diagnosis of CLAD.
two years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Report the molecular scores (probability) of lung transplant disease in a reference set of 600 mucosal endobronchial biopsies.
Time Frame: two years
Molecular classifier predicts antibody mediated and T cell mediated rejection, and chronic allograft dysfunction.
two years
Report the molecular diagnoses of the MMDx-3BMB system
Time Frame: two years
Compare MMDx-3BMB readings to MMDx-TBB readings and clinical diagnosis of CLAD
two years
Report the molecular changes over time in medically indicated follow-up biopsies
Time Frame: two years
Predict and monitor response to anti-rejection treatment.
two years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Alberta

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Philip F Halloran, MD, PhD, Faculty of Medicine and Dentistry, University of Alberta

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2016

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 31, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 21, 2016

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 24, 2016

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 28, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 25, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ATAGC 03

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Lung Transplant Rejection

Clinical Trials on Lung transplant biopsy bites.

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings