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Ex-Vivo Lung TransplantationUA NPV-EVLPNCT03293043

The University of Alberta Negative Pressure Ventilation Ex-Vivo Lung Perfusion (NPV-EVLP) Trial

A study testing NPV-EVLP in people with Ex-Vivo Lung Transplantation, run by University of Alberta at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This project is focused on helping one of the most vulnerable patient populations in medicine, patients with end-stage chronic lung disease. Lung transplantation is the only cure for end-stage lung disease, however, due to the persistent shortage of donor organs, either due to low organ donation rates or unacceptable… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Ex-Vivo Lung Transplantation
What is being tested?
NPV-EVLP
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteCanada
Study dates
11 Oct 2018to 22 Apr 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

5.2 PRE-NPV-EVLP Donor Eligibility Criteria

5.2.1 Donor MUST meet ANY ONE of the following Inclusion Criteria to proceed with NPV-EVLP:

  1. Best ratio of the PaO2 to FiO2 of < 300mmHg;
  2. Pulmonary edema, defined as bilateral interstitial infiltrates without evidence of infection, detected on the last chest radiograph by the lung-transplantation physician assessing the donor;
  3. Poor lung deflation or inflation during direct intraoperative visual examination at the donor site;
  4. Donor age is ≥ 55 years;
  5. Expected cold ischemic time > 6 hours;
  6. Blood transfusions ≥ 10 units; or
  7. Donation after cardiac death (DCD), as defined by Maastricht category III (donor without a heartbeat and with cardiocirculatory death imminent after withdrawal of treatment) or category IV (cardiocirculatory death in a brain-dead donor).

5.2.2 Donor Exclusion Criteria to NOT proceed with NPV-EVLP:

  1. Donor lungs with established pneumonia;
  2. Severe mechanical lung injury (i.e., contusions in more than one lobe) or trauma determined by chest x-ray, bronchoscopy, CT scan or visual inspection; or
  3. Gross gastric aspiration within the lungs
  4. Donor lungs have active infectious disease such as HIV, Hepatitis B, Hepatitis C, West Nile Virus (WNV), HTLV, or Syphillis (if this information not available at start of EVLP, it should be re-assessed prior to transplant).

5.3 POST-NPV-EVLP Donor Eligibility Criteria

5.3.1 Donor Inclusion Criteria to proceed with Transplant:

  1. Surgeon must be satisfied with the clinical evaluation and appearance of the lungs; if not, reason for refusal must be documented;
  2. Lungs show PaO2/FiO2 ratio ≥ 350mmHg; AND
  3. Deterioration of less than 15% from baseline for physiological measurements pulmonary vascular resistance (PVR), dynamic compliance and peak inspiratory pressure.

5.3.2 Donor Exclusion Criteria to proceed with Transplant:

  1. Lungs show a PaO2/FiO2 ratio of < 350mmHg;
  2. Greater than 15% functional deterioration across the following physiological parameters: PVR, dynamic compliance and peak inspiratory pressure;
  3. Donor lungs are positive for infectious disease such as HIV, Hepatitis B, Hepatitis C, West Nile Virus (WNV),HTLV, or Syphillis.

5.4 Recipient Eligibility Criteria

5.4.1 Recipient Inclusion Criteria

  1. Patients on our institution's waitlist requiring bilateral transplantation
  2. Male or Female 18 years of age or older
  3. Written informed consent provided.

5.4.2Recipient Exclusion Criteria

  1. Multi-organ recipient or re-transplant
  2. HIV, Hepatitis, or other infection that excludes subject from transplant in the study
  3. Subject is on hemodialysis or has chronic severe renal dysfunction
  4. Concurrent cardiac procedure
  5. Recipient is on Nova Lung, ECMO or on mechanical ventilation (CPAP and BiPAP not exclusionary)

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University of Alberta Hospital

    Edmonton, Alberta, T6G 2B7

Other trials in Canada

About this study

This project is focused on helping one of the most vulnerable patient populations in medicine, patients with end-stage chronic lung disease. Lung transplantation is the only cure for end-stage lung disease, however, due to the persistent shortage of donor organs, either due to low organ donation rates or unacceptable organs, only a minority of patients receive desperately needed lung transplants. Currently less than 30% of potential donated thoracic organs are being used for transplantation. The major causes for under utilization of donor thoracic organs are injury sustained by the lungs in trauma or emergency resuscitation or lungs that come from donors who are pronounced dead due to cardiac arrest (known as DCD donors). It has been hypothesized that these injuries may be reversible or repairable if there was an opportunity to evaluate and repair these organs outside of the body (ex-vivo), prior to transplantation. In fact, studies have shown that the use of normothermic Ex-Vivo Lung Perfusion (EVLP) has increased the rate of donor organ utilization at centers that have adopted the technology.

Current methodology for all clinically available EVLP devices uses Positive Pressure Ventilation (PPV). Researchers at the University of Alberta (UofA), however, have developed an EVLP device that will apply Negative Pressure Ventilation (NPV) to the lungs, as opposed to PPV, which is the most ideal mimicry of native lung physiology. The objective of this early feasibility safety trial is to show that the UofA developed NPV-EVLP device is acceptable in evaluating and improving the quality of marginal donor lungs compared to currently used EVLP devices, ultimately allowing for these types of donor lungs to be safely transplanted into patients on the lung transplant recipient waitlist.

Being tested
NPV-EVLP

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • NPV-EVLPDevice

    Lungs deemed marginal based on standard lung donor criteria that meet study eligibility will be physiologically assessed during ex-vivo perfusion. NPV-EVLP of these lungs will be performed with the addition of numerous pre-determined additives. With respect to the decision of lung utilization post-EVLP, eligibility criteria listed in the Post-NPV-EVLP section of the trial will need to be met. Lungs will also be excluded if they are deemed unsuitable based on the clinical judgment of the lung transplant surgeon.

Study groups in NCT03293043
Study groupRoleWhat they receive
Experimental GroupExperimentalAfter initial screening, appropriately obtained informed consent and confirmation of eligibility at time of transplant, those recipients (a total of 12 subjects) who agree to continue as participants will receive reconditioned marginal lungs should the lungs on the device meet acceptable criteria to proceed with clinical transplantation.
Receives: Device: NPV-EVLP

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Patient survival post transplantation at Day30

    The primary end point is a co-primary endpoint comparing patient survival rates post transplantation at Day30 (Outcome 1) and rates of Primary Graft Dysfunction (PGD) Grade 3 in the first 72 hours (Outcome 2) with success measured only if both endpoints are met.

    Measured: Day30 post-Transplant

  2. Primary Graft Dysfunction (PGD) Grade 3 in the first 72Hours

    The primary end point is a co-primary endpoint comparing patient survival rates post transplantation at Day30 (Outcome 1) and rates of Primary Graft Dysfunction (PGD) Grade 3 in the first 72 hours (Outcome 2) with success measured only if both endpoints are met.

    Measured: First 72Hours post-Transplant

Secondary outcomes (6)
  1. Primary Graft Dysfunction (PGD) Grades

    PGD scores will be assessed a Grade of 0, 1, 2 or 3 (per ISHLT Guidelines) at Time0 (ICU Admission), Time24Hours (post-Transplant), Time48Hours (post-Transplant), and Time72Hours (post-Transplant) with respect to PaO2/FiO2 ratios and presence/absence of radiographic infiltrates consistent with pulmonary edema.

    Measured: Time0 (ICU Admission), Time24Hours (post-Transplant), Time48Hours (post-Transplant), and Time72Hours (post-Transplant)

  2. ICU LOS

    ICU length of stay (LOS) post-Transplant will be captured.

    Measured: From admission to the ICU through to exact date of ICU Discharge (up to 30Days)

  3. Hospital LOS

    Index hospital length of stay (LOS) length of stay post-Transplant will be captured until D/C.

    Measured: From date of Transplant through to exact date of Index Hospital Discharge (up to 6Months)

  4. Duration of Mechanical Ventilation post-Transplant

    The duration of Mechanical Ventilation post-Transplant will be captured until extubation.

    Measured: Time0 (ICU Admission post-Transplant) through to exact time of extubation post-Transplant

  5. FEV1

    FEV1 results from spirometry efforts at 6Months and 1Year will be captured.

    Measured: 6Months and 1Year

  6. Quality of Life (SF-36)

    Quality of Life measured by the 36-Item Short Form Survey (SF-36) at 6Months and 1Year will be captured.

    Measured: 6Months and 1Year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Sep 2017
  2. Study start11 Oct 2018
  3. Primary completion22 Apr 2021
  4. Study completion22 Apr 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Device feasibility
Allocation
Not applicable
Intervention model
Single group
Model description
The purpose of this Phase I Early Feasibility Proof of Concept clinical trial will be to evaluate initial performance and safety of the NPV-EVLP device to assess and improve the function of marginal donor lungs. By nature, efficacy measures and outcomes of the device will also become evident from the results of this study. This is a prospective, non-randomized, interventional trial, taking place solely at the University of Alberta Hospital/Mazankowski Alberta Heart Institute. Lungs deemed marginal, based on standard lung donor criteria that meet the study's eligibility criteria, will be assessed on our NPV-EVLP device to determine suitability for lung transplantation. Objective assessment of quality will be made while the lungs are on the device based on pre-determined functional parameters of lung physiology. Once a total of 12 sets of lungs are transplanted after using the device, safety will be determined by post-operative lung function and recipient survival.
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03293043
Sponsor's protocol ID
Pro00070552
Acronym
UA NPV-EVLP
Status last verified
Apr 2021
First submitted
11 Sep 2017
Last updated
26 Apr 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Only aggregate and descriptive data of the experimental group vs the SOC arm will be shared in the form of publications.

Publications

  • Buchko MT, Boroumand N, Cheng JC, Hirji A, Halloran K, Freed DH, Nagendran J. Clinical transplantation using negative pressure ventilation ex situ lung perfusion with extended criteria donor lungs. Nat Commun. 2020 Nov 13;11(1):5765. doi: 10.1038/s41467-020-19581-4.

    PubMed 33188221

Questions about this trial

What is this clinical trial studying?

A study testing NPV-EVLP in people with Ex-Vivo Lung Transplantation, run by University of Alberta at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Patient survival post transplantation at Day30 (time frame: Day30 post-Transplant). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03293043, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Apr 2021.

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