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NCT05051397RecruitingPhase 2

CO2 Modulation in Endovascular Thrombectomy for Acute Ischemic Stroke

Evaluation of the Effect of Moderate and Controlled Hypercapnia on Ischemic Penumbra Vascular Collaterality During General Anesthesia for Anterior Circulation Acute Ischemic Stroke Mechanical Thrombectomy

Source: ClinicalTrials.gov · Last updated 3 Sept 2026

Brief summary (registry, in English)

Acute ischemic stroke due to large vessel occlusion is responsible of cerebral blood flow impairment with a progressive and extensive ischemic process. Cerebral collateral circulation may preserve an ischemic penumbra that could recover providing timely reperfusion of the occluded vessel. Mechanical thrombectomy is the standard of care for anterior circulation large vessel reperfusion. Strategy to promote cerebral blood flow in collateral circulation before reperfusion is scarce and rely mainly on blood pressure maintenance. Carbon dioxide is a potent cerebral vasodilator that could enhance collateral circulation blood flow and cerebral protection before reperfusion. General anesthesia with endotracheal mechanical ventilation could be used for thrombectomy and give the opportunity to modulate and control carbon dioxide tension in the blood. This study will test the effect of moderate hypercapnia on penumbral collateral circulation before reperfusion during mechanical thrombectomy for anterior circulation acute ischemic stroke under general anesthesia.

Status (registry)
Recruiting
Phase (registry)
Phase 2
Study type
Interventional
Enrollment
50 (estimated)
First submitted
9 Jul 2021
Start date
20 Jul 2022
Primary completion date
20 Oct 2028
Lead sponsor
University Hospital, Clermont-Ferrand
Diseases
Stroke
NCT number
NCT05051397

What you commit to

  • Study type: Interventional · Phase 2
  • Planned participants: 50
  • From 20 Jul 2022 to the primary completion date, 20 Oct 2028
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Chronic respiratory failure with ambulatory oxygen supplementation
  • Heart failure with intolerance to decubitus
  • Severe renal failure

Other

  • Active smoker
  • Obesity with BMI\>40Kg/ m2
  • Intubation before the procedure
  • Suspected elevated intracranial pressure
  • Pregnant or breastfeeding women

Who the study is looking for

  • Large vessel occlusion anterior circulation stroke (terminal carotid artery and/or middle cerebral artery M1-M2 segment) eligible to mechanical thrombectomy under general anesthesia

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
CHU
Coordinator of this site? Confirm its status
Clermont-FerrandFranceRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.