NCT05680545

Brief Summary

The goal of this study is to design a pilot trial evaluating the safety, feasibility, pharmacokinetic modeling, and physiological effects of a volatile anesthetic, sevoflurane, directly administered in extracorporeal membrane oxygenation machines.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for not_applicable

Timeline
2mo left

Started Jul 2025

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress85%
Jul 2025Jun 2026

First Submitted

Initial submission to the registry

December 16, 2022

Completed
26 days until next milestone

First Posted

Study publicly available on registry

January 11, 2023

Completed
2.5 years until next milestone

Study Start

First participant enrolled

July 1, 2025

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2026

Last Updated

December 9, 2024

Status Verified

December 1, 2024

Enrollment Period

12 months

First QC Date

December 16, 2022

Last Update Submit

December 4, 2024

Conditions

Keywords

Extracorporeal membrane oxygenationVolatile anestheticsSedation

Outcome Measures

Primary Outcomes (1)

  • Sevoflurane plasma concentrations

    Plasma concentrations of sevoflurane will be measured with gas chromatography and mass spectrometry

    7 days

Secondary Outcomes (4)

  • Percentage of sevoflurane in ECMO exhausted gas

    7 days

  • Respiratory dynamics and respiratory effort

    7 days

  • Plasma levels of ventilator-induced lung injury biomarkers

    7 days

  • Required doses of sedative adjuvants

    7 days

Study Arms (1)

Sevoflurane vaporized in ECMO machines

EXPERIMENTAL

Patients' sedation will be managed with sevoflurane-based anesthesia directly vaporized into the ECMO machine.

Other: Sevoflurane vaporized in ECMO machines

Interventions

Sevoflurane will be directly vaporized into the ECMO machine through the sweep gas.

Sevoflurane vaporized in ECMO machines

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • adult patients expected to be on VV ECMO support for a time frame of more than 24 hours and receiving a sevoflurane-based sedation protocol.

You may not qualify if:

  • lack of informed consent for participation
  • pregnancy
  • serum bilirubin \> 150 μmol/L
  • ongoing massive blood transfusion requirement (\> 50% blood volume transfused in the previous 8 hours)
  • therapeutic plasma exchange and/or renal replacement therapy in the preceding 24 hours
  • expected death or withdrawal of life support in the next 48 hours.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (9)

  • McMullan V, Alston RP, Tyrrell J. Volatile anaesthesia during cardiopulmonary bypass. Perfusion. 2015 Jan;30(1):6-16. doi: 10.1177/0267659114531314. Epub 2014 Apr 14.

    PMID: 24732827BACKGROUND
  • LaGrew JE, Olsen KR, Frantz A. Volatile anaesthetic for treatment of respiratory failure from status asthmaticus requiring extracorporeal membrane oxygenation. BMJ Case Rep. 2020 Jan 15;13(1):e231507. doi: 10.1136/bcr-2019-231507.

    PMID: 31948977BACKGROUND
  • Fan E, Gattinoni L, Combes A, Schmidt M, Peek G, Brodie D, Muller T, Morelli A, Ranieri VM, Pesenti A, Brochard L, Hodgson C, Van Kiersbilck C, Roch A, Quintel M, Papazian L. Venovenous extracorporeal membrane oxygenation for acute respiratory failure : A clinical review from an international group of experts. Intensive Care Med. 2016 May;42(5):712-724. doi: 10.1007/s00134-016-4314-7. Epub 2016 Mar 23.

    PMID: 27007108BACKGROUND
  • Cheng V, Abdul-Aziz MH, Roberts JA, Shekar K. Overcoming barriers to optimal drug dosing during ECMO in critically ill adult patients. Expert Opin Drug Metab Toxicol. 2019 Feb;15(2):103-112. doi: 10.1080/17425255.2019.1563596. Epub 2019 Jan 3.

    PMID: 30582435BACKGROUND
  • Shekar K, Roberts JA, Mcdonald CI, Fisquet S, Barnett AG, Mullany DV, Ghassabian S, Wallis SC, Fung YL, Smith MT, Fraser JF. Sequestration of drugs in the circuit may lead to therapeutic failure during extracorporeal membrane oxygenation. Crit Care. 2012 Oct 15;16(5):R194. doi: 10.1186/cc11679.

    PMID: 23068416BACKGROUND
  • Shekar K, Roberts JA, Mullany DV, Corley A, Fisquet S, Bull TN, Barnett AG, Fraser JF. Increased sedation requirements in patients receiving extracorporeal membrane oxygenation for respiratory and cardiorespiratory failure. Anaesth Intensive Care. 2012 Jul;40(4):648-55. doi: 10.1177/0310057X1204000411.

    PMID: 22813493BACKGROUND
  • Bellgardt M, Ozcelik D, Breuer-Kaiser AFC, Steinfort C, Breuer TGK, Weber TP, Herzog-Niescery J. Extracorporeal membrane oxygenation and inhaled sedation in coronavirus disease 2019-related acute respiratory distress syndrome. World J Crit Care Med. 2021 Nov 9;10(6):323-333. doi: 10.5492/wjccm.v10.i6.323. eCollection 2021 Nov 9.

    PMID: 34888158BACKGROUND
  • Rand A, Zahn PK, Schildhauer TA, Waydhas C, Hamsen U. Inhalative sedation with small tidal volumes under venovenous ECMO. J Artif Organs. 2018 Jun;21(2):201-205. doi: 10.1007/s10047-018-1030-9. Epub 2018 Mar 5.

    PMID: 29508167BACKGROUND
  • Ferrando C, Aguilar G, Piqueras L, Soro M, Moreno J, Belda FJ. Sevoflurane, but not propofol, reduces the lung inflammatory response and improves oxygenation in an acute respiratory distress syndrome model: a randomised laboratory study. Eur J Anaesthesiol. 2013 Aug;30(8):455-63. doi: 10.1097/EJA.0b013e32835f0aa5.

    PMID: 23545542BACKGROUND

MeSH Terms

Conditions

Respiratory Insufficiency

Condition Hierarchy (Ancestors)

Respiration DisordersRespiratory Tract Diseases

Study Officials

  • Diana Morales Castro, MD

    University Health Network, Toronto

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Diana Morales Castro, MD

CONTACT

Eddy Fan, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Prospective, single-center, open-label, pharmacokinetic study
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Junior Attending, MSICU Toronto General Hospital, Principal Investigator

Study Record Dates

First Submitted

December 16, 2022

First Posted

January 11, 2023

Study Start

July 1, 2025

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

June 30, 2026

Last Updated

December 9, 2024

Record last verified: 2024-12