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AzTrials

Organ PreservationNONOFLOWNCT07423936

Multimodal Neuromonitoring During Normothermic Regional Perfusion for Organ Donors Determined Dead by circuLatory Criteria Following Withdrawal of Life Sustaining Measures

An observational study of Organ Preservation and Brain Reperfusion or Regain of Brain Function During Normothermic Regional Perfusion, run by University of British Columbia at 1 site in Canada.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

The aim of this study is to demonstrate that cerebral blood flow and brain function do not resume after death declaration in organ donors who undergo normothermic regional perfusion to restore organ function following death determination by circulatory criteria, when appropriate safeguards are applied. Read more about this study

Who is it for?
Ages 19 years and older
What is being tested?
Neuromonitoring
How many people
30 participants
Where
1 siteCanada
Study dates
24 Feb 2025to Dec 2028
Phase
Observational
Are there results?
Not yet: the study is under way

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 19 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Consented eligible organ donors

Who may be able to join

  • Age > 18;
  • Planned DCD within the next 96 hours.

Who cannot join

  • Coagulopathy (International normalized ratio > 1.5, prothrombin time > 45 seconds, platelets < 50);
  • Therapeutic anticoagulant medication administration.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Rebecca Grey Clinical Research Coordinator contact

604-875-4111 ext. 68336

cerebri.research@ubc.ca

Canada1 site, 1 recruiting
  • Vancouver General Hospital

    Vancouver, British Columbia, V5Z1M9

    Mypinder Sekhon, 604-875-5949, myp@mail.ubc.ca

    Recruiting

Other trials in Canada

About this study

Official title: Multimodal NeurOmonitoring During NormOthermic Regional PerFusion for Organ Donors Determined Dead by CircuLatory Criteria fOllowing Withdrawal of Life Sustaining Measures (NONOFLOW): A Proof-of-Concept Study

The aim of this study is to demonstrate that cerebral blood flow and brain function do not resume after death declaration in organ donors who undergo normothermic regional perfusion to restore organ function following death determination by circulatory criteria, when appropriate safeguards are applied.

To assess the absence of cerebral perfusion and function, investigators will use continuous and comprehensive multimodal neuromonitoring throughout the withdrawal of life-sustaining therapies, the dying process and the NRP procedure.

Read the detailed description

This will be a proof-of-concept study aimed at establishing the feasibility of multimodal neuromonitoring in patient undergoing abdominal (A-NRP) and thoraco-abdominal (TA-NRP) and to investigate whether resumption of CBF or function occurs in a cohort of DCD organ donors during A-NRP and TA-NRP. A central goal of this study is to demonstrate the absence of cerebral blood flow and function following normothermic regional perfusion, thereby improving clinical confidence to its safety and maintenance of adherence to death determination in organ donors.

Being tested
Neuromonitoring
Keywords
Normothermic regional perfusion, donation after cardiac death, organ donation

What participants receive

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

  • NeuromonitoringOther

    Neuromonitoring during withdrawal of life sustaining therapies, dying process and during normothermic regional perfusion after death.

    The neuromonitoring will include:

    • Invasive intracranial pressure monitoring (Codman)
    • Bilateral invasive oxygentation monitoring (Licox)
    • Bilateral invasive blood flow monitoring (Hemedex)
    • Bilateral invasive EEG monitoring (Nantus)
    • Cerebral microdialysis
    • Transcranial doppler (Novosignal)
    • Jugular bulb oximetry (Edwards)
    • Surface EEG (Nantus)
    • Near infrared spectroscopy (Masimo)
    • Somatosensory and brainstem evoked potentials
    • Bispectral index (Masimo)
Study groups in NCT07423936
Study groupRoleWhat they receive
Consented Organ DonorsConsented for organ donation following withdrawal of life-sustaining measures and planned DCD within the next 96 hours.
Receives: Other: Neuromonitoring

What is being measured

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

  1. Aim 1: Assessment of brain reanimation (restoration of brain circulation and/or function)

    To determine the presence or absence of the brain circulation and function during normothermic regional perfusion assessed by intra-parenchymal neuromonitoring, non-invasive neuromonitoring and clinical examination.

    Reperfusion or regain of brain function during normothermic regional perfusion will be expressed in proportion.

    Restoration of either cerebral perfusion or neurological function in a patient will be considered a single brain reanimation event.

    Clinical examination will consist of serial pupillary light reflex assessment and monitoring for respiratory efforts during normothermic regional perfusion.

    Evidence of brain function will be determined by the presence of rhythmic delta wave activity on electroencephalography, N20 response with somatosensory evoked potentials or presence of brainstem auditory evoked potentials.

    Restoration of brain circulation will be determined by the presence of cerebral blood flow (>10mls/100g/min) or brain tissue oxygen tension (>2mmHg).

    Measured: One hour prior to withdrawal of life-sustaining therapies, during the dying duration and for 2 hours during normothermic regional perfusion

  2. Aim 2: Feasibility of conducting multimodal monitoring

    To assess the feasibility of implementing multimodal neuromonitoring in DCD organ donors undergoing normothermic regional perfusion.

    This will be a descriptive outcome in which investigators will calculate the duration of available data for each modality and compare it with the total observation period.

    The investigators hypothesized that feasibility will be strong and that > 80% data variables will be collected for the pre-specified duration in each case.

    Measured: One hour prior to withdrawal of life-sustaining therapies, during the dying duration and for 2 hours during normothermic regional perfusion

Secondary outcomes (1)
  1. Aim 3: To assess the agreement between invasive and non-invasive neuromonitoring in determining the presence or absence of brain reanimation during normothermic regional perfusion.

    To assess the agreement between invasive (intra-parenchymal cerebral blood flow, intra-parenchymal brain oxygenation, invasive EEG) and non invasive neuromonitoring (transcranial doppler, surface EEG, brainstem auditory evoked potentials, somatosensory evoked potentials) in determining the presence of brain circulation and function during normothermic regional perfusion

    Measured: During normothermic regional perfusion

Timeline

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

  1. First posted20 Feb 2026
  2. Study start24 Feb 2025
  3. Primary completionSep 2028 (estimated)
  4. Study completionDec 2028 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07423936
Sponsor's protocol ID
H24-00788
Acronym
NONOFLOW
Status last verified
Feb 2025
First submitted
29 Jan 2026
Last updated
20 Feb 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Murphy N, Lingard L, Blackstock L, Ott M, Slessarev M, Basmaji J, Brahmania M, Healey A, Shemie S, Skaro A, Wilson L, Weijer C. Protocol for a qualitative pilot study to explore ethical issues and stakeholder trust in the use of normothermic regional perfusion in organ donation in Canada. BMJ Open. 2022 Sep 29;12(9):e067515. doi: 10.1136/bmjopen-2022-067515.

    PubMed 36175093
  • Murphy NB, Weijer C, Slessarev M, Chandler JA, Gofton T. Implications of the updated Canadian Death Determination Guidelines for organ donation interventions that restore circulation after determination of death by circulatory criteria. Can J Anaesth. 2023 Apr;70(4):591-595. doi: 10.1007/s12630-023-02413-6. Epub 2023 May 2. No abstract available.

    PubMed 37131028
  • Shemie SD, Wilson LC, Hornby L, Basmaji J, Baker AJ, Bensimon CM, Chandler JA, Chasse M, Dawson R, Dhanani S, Mooney OT, Sarti AJ, Simpson C, Teitelbaum J, Torrance S, Boyd JG, Brennan J, Brewster H, Carignan R, Dawe KJ, Doig CJ, Elliott-Pohl K, Gofton TE, Hartwick M, Healey A, Honarmand K, Hornby K, Isac G, Kanji A, Kawchuk J, Klowak JA, Kramer AH, Kromm J, LeBlanc AE, Lee-Ameduri K, Lee LA, Leeies M, Lewis A, Manara A, Matheson S, McKinnon NKA, Murphy N, Briard JN, Pope TM, Sekhon MS, Shanker JJS, Singh G, Singh J, Slessarev M, Soliman K, Sutherland S, Weiss MJ, Shaul RZ, Zuckier LS, Zorko DJ, Rochwerg B. A brain-based definition of death and criteria for its determination after arrest of circulation or neurologic function in Canada: a 2023 clinical practice guideline. Can J Anaesth. 2023 Apr;70(4):483-557. doi: 10.1007/s12630-023-02431-4. Epub 2023 May 2.

    PubMed 37131020
  • Shapey IM, Summers A, Augustine T, van Dellen D. Systematic review to assess the possibility of return of cerebral and cardiac activity after normothermic regional perfusion for donors after circulatory death. Br J Surg. 2019 Feb;106(3):174-180. doi: 10.1002/bjs.11046. Epub 2019 Jan 22.

    PubMed 30667536
  • Peled H, Mathews S, Rhodes D, Bernat JL. Normothermic Regional Perfusion Requires Careful Ethical Analysis Before Adoption Into Donation After Circulatory Determination of Death. Crit Care Med. 2022 Nov 1;50(11):1644-1648. doi: 10.1097/CCM.0000000000005632. Epub 2022 Oct 13. No abstract available.

    PubMed 36227032
  • Manara A, Shemie SD, Large S, Healey A, Baker A, Badiwala M, Berman M, Butler AJ, Chaudhury P, Dark J, Forsythe J, Freed DH, Gardiner D, Harvey D, Hornby L, MacLean J, Messer S, Oniscu GC, Simpson C, Teitelbaum J, Torrance S, Wilson LC, Watson CJE. Maintaining the permanence principle for death during in situ normothermic regional perfusion for donation after circulatory death organ recovery: A United Kingdom and Canadian proposal. Am J Transplant. 2020 Aug;20(8):2017-2025. doi: 10.1111/ajt.15775. Epub 2020 Jan 27.

    PubMed 31922653
  • van de Leemkolk FEM, Schurink IJ, Dekkers OM, Oniscu GC, Alwayn IPJ, Ploeg RJ, de Jonge J, Huurman VAL. Abdominal Normothermic Regional Perfusion in Donation After Circulatory Death: A Systematic Review and Critical Appraisal. Transplantation. 2020 Sep;104(9):1776-1791. doi: 10.1097/TP.0000000000003345.

    PubMed 32541563
  • Shapey IM, Muiesan P. Regional perfusion by extracorporeal membrane oxygenation of abdominal organs from donors after circulatory death: a systematic review. Liver Transpl. 2013 Dec;19(12):1292-303. doi: 10.1002/lt.23771.

    PubMed 24136827
  • Hessheimer AJ, de la Rosa G, Gastaca M, Ruiz P, Otero A, Gomez M, Alconchel F, Ramirez P, Bosca A, Lopez-Andujar R, Atutxa L, Royo-Villanova M, Sanchez B, Santoyo J, Marin LM, Gomez-Bravo MA, Mosteiro F, Villegas Herrera MT, Villar Del Moral J, Gonzalez-Abos C, Vidal B, Lopez-Dominguez J, Llado L, Roldan J, Justo I, Jimenez C, Lopez-Monclus J, Sanchez-Turrion V, Rodriguez-Laiz G, Velasco Sanchez E, Lopez-Baena JA, Caralt M, Charco R, Tome S, Varo E, Marti-Cruchaga P, Rotellar F, Varona MA, Barrera M, Rodriguez-Sanjuan JC, Briceno J, Lopez D, Blanco G, Nuno J, Pacheco D, Coll E, Dominguez-Gil B, Fondevila C. Abdominal normothermic regional perfusion in controlled donation after circulatory determination of death liver transplantation: Outcomes and risk factors for graft loss. Am J Transplant. 2022 Apr;22(4):1169-1181. doi: 10.1111/ajt.16899. Epub 2021 Dec 21.

    PubMed 34856070
  • Basmaji J, Weijer C, Skaro A, Healey A, Shemie SD, Slessarev M. Paving the Road for the Adoption of Normothermic Regional Perfusion in Canada. Crit Care Explor. 2021 Oct 28;3(11):e0553. doi: 10.1097/CCE.0000000000000553. eCollection 2021 Nov.

    PubMed 34729491
  • Ivanics T, Shwaartz C, Claasen MPAW, Patel MS, Yoon P, Raschzok N, Wallace D, Muaddi H, Murillo Perez CF, Hansen BE, Selzner N, Sapisochin G. Trends in indications and outcomes of liver transplantation in Canada: A multicenter retrospective study. Transpl Int. 2021 Aug;34(8):1444-1454. doi: 10.1111/tri.13903. Epub 2021 Jul 7.

    PubMed 33977568
  • Schaapherder A, Wijermars LGM, de Vries DK, de Vries APJ, Bemelman FJ, van de Wetering J, van Zuilen AD, Christiaans MHL, Hilbrands LH, Baas MC, Nurmohamed AS, Berger SP, Alwayn IP, Bastiaannet E, Lindeman JHN. Equivalent Long-term Transplantation Outcomes for Kidneys Donated After Brain Death and Cardiac Death: Conclusions From a Nationwide Evaluation. EClinicalMedicine. 2018 Oct 9;4-5:25-31. doi: 10.1016/j.eclinm.2018.09.007. eCollection 2018 Oct-Nov.

    PubMed 31193600
  • Bleszynski MS, Parmentier C, Torres-Hernandez A, Ray S, Yousuf A, Norgate A, Schiff J, Shwaartz C, Sapisochin G, McGilvray I, Selzner M, Reichman TW. Pancreas transplantation with grafts obtained from donation after cardiac death or donation after brain death results in comparable outcomes. Front Transplant. 2023 Aug 9;2:1176398. doi: 10.3389/frtra.2023.1176398. eCollection 2023.

    PubMed 38993888
  • Palleschi A, Rosso L, Musso V, Rimessi A, Bonitta G, Nosotti M. Lung transplantation from donation after controlled cardiocirculatory death. Systematic review and meta-analysis. Transplant Rev (Orlando). 2020 Jan;34(1):100513. doi: 10.1016/j.trre.2019.100513. Epub 2019 Oct 18.

    PubMed 31718887
  • Haque OJ, Roth EM, Fleishman A, Eckhoff DE, Khwaja K. Long-Term Outcomes of Early Experience in Donation After Circulatory Death Liver Transplantation: Outcomes at 10 Years. Ann Transplant. 2021 Apr 20;26:e930243. doi: 10.12659/AOT.930243.

    PubMed 33875633

Questions about this trial

What is this clinical trial studying?

An observational study of Organ Preservation and Brain Reperfusion or Regain of Brain Function During Normothermic Regional Perfusion, run by University of British Columbia 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?

The sponsor lists 2 inclusion and 2 exclusion criteria. 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: looking for participants now, as of the sponsor's last update on 20 Feb 2026. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Rebecca Grey Clinical Research Coordinator (604-875-4111 ext. 68336, cerebri.research@ubc.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Aim 1: Assessment of brain reanimation (restoration of brain circulation and/or function) (time frame: One hour prior to withdrawal of life-sustaining therapies, during the dying duration and for 2 hours during normothermic regional perfusion). 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 NCT07423936, which also lists 16 linked publications.

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 20 Feb 2026.

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