Comparing biopsy methods for lung transplant rejection diagnosis
Official title: A Prospective, Randomized Clinical Trial to Evaluate the Feasibility of Miniature Cryoprobe Biopsy to Detect Acute and Chronic Lung Transplant Rejection in Lung Transplant Recipients
Run by Mayo Clinic · NCT06824402 · Data updated 2026-11-12
This study tests which of two methods for taking lung tissue samples works better for diagnosing rejection in lung transplant patients.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 99 Years |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Mayo Clinic Academic / other |
| Locations | 1 site (Rochester, Minnesota) |
| Status | Recruiting |
| Started | February 17, 2025 |
| Main results expected | September 30, 2026 |
| Study ends | September 30, 2027 |
| Registry record updated | May 1, 2026 |
| Trial ID | NCT06824402 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are lung transplant recipients over 18 years old who require a post-transplant biopsy for routine surveillance.
✕Probably not a fit
Patients with bleeding disorders or those currently on anticoagulation therapy may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to evaluate the effectiveness of two biopsy collection methods, a 1.1 mm cryoprobe and biopsy forceps, in diagnosing lung transplant rejection. Participants will be randomly assigned to receive one of the two methods during their scheduled bronchoscopy. The study will assess the quality of tissue samples, the adequacy of tissue collected, and the procedural time required for each method. Additionally, pathologists will evaluate the samples to determine which method provides the most reliable results for detecting rejection.
Why it matters
Potential benefit: If successful, this study could lead to improved diagnostic accuracy for lung transplant rejection, enhancing patient management.
How similar studies have gone: Other studies have explored various biopsy techniques in transplant settings, but this specific comparison of cryoprobe versus forceps is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria * Male and female lung transplant recipients age \>18 at the time of informed consent * Patients clinically meet indication for post-transplant lung biopsy or planned routine surveillance and have been scheduled for bronchoscopy with transbronchial biopsy. * Be willing and able to sign the informed consent. Exclusion Criteria * Patients with known bleeding diathesis * Platelet count \<50,000 per μL within 14 days of the biopsy procedure * Current use of systemic anticoagulation or antiplatelet therapy without the ability to hold therapy for the recommended amount of time prior to an invasive procedure (aspirin monotherapy is acceptable) * Inability or unwillingness to give informed consent or study procedures * Pregnant or nursing females, or females who intend to become pregnant * Females of child-bearing potential who decline a pregnancy test prior to enrollment * If an investigator does not feel that this study is in the subject's best interest or would be a good fit for the study. * International Normalized Ratio (INR) \>1.5 * Do Not Resuscitate (DNR) status * Do Not Intubate (DNI) status * Single lung transplant recipients
Where it's running
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Mayo Clinic in Rochester
Rochester, Minnesota, United States Recruiting
Study contacts
- Principal investigator: John Joerns — Mayo Clinic
- Study coordinator: John Joerns, MD
- Email: joerns.john@mayo.edu
- Phone: 507-284-6616
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Hyperpolarized xenon-129 MRI signatures to detect and manage acute cellular rejection after lung transplant
We will see if hyperpolarized xenon-129 MRI can detect early acute cellular rejection in recent lung transplant recipients and guide targeted bronchoscopic sampling.
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Research on improving outcomes for lung transplant donors and recipients
This study is trying to see how different donor and medical practices affect the health of lung transplant patients and donors, while also looking for blood markers that might predict complications after the surgery.
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Evaluating extracorporeal photopheresis for subclinical lung transplant rejection
This study is testing if a light-based treatment called extracorporeal photopheresis can help lung transplant patients who have early signs of rejection feel better and improve their health.
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Testing the effectiveness of belumosudil for treating lung transplant rejection
This study is testing if belumosudil can help improve lung function in adults who have had a lung transplant and are experiencing ongoing issues with their new lungs.
-
Identifying biomarkers for lung transplant dysfunction
This study is trying to find specific markers in the body that can help doctors understand and manage problems after lung transplants for patients at Foch Hospital.
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Evaluating new diagnostic methods for lung transplant rejection
This study is testing a new diagnostic tool to see if it can better identify lung transplant rejection in patients who are having problems with their transplanted lungs.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.