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Recruiting Phase 2 NCT05051397

NCT05051397 CO2 Modulation in Endovascular Thrombectomy for Acute Ischemic Stroke

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Clinical Trial Summary
NCT ID NCT05051397
Status Recruiting
Phase Phase 2
Sponsor University Hospital, Clermont-Ferrand
Condition Ischemic Stroke, Acute
Study Type INTERVENTIONAL
Enrollment 50 participants
Start Date 2022-07-20
Primary Completion 2026-07-19

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
HYPERCAPNIANORMOCAPNIA

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 50 participants in total. It began in 2022-07-20 with a primary completion date of 2026-07-19.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

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.

Eligibility Criteria

Inclusion Criteria: • Large vessel occlusion anterior circulation stroke (terminal carotid artery and/or middle cerebral artery M1-M2 segment) eligible to mechanical thrombectomy under general anesthesia Exclusion Criteria : * Active smoker * Chronic respiratory failure with ambulatory oxygen supplementation * Obesity with BMI\>40Kg/ m2 * Intubation before the procedure * Heart failure with intolerance to decubitus * Severe renal failure * Suspected elevated intracranial pressure * Pregnant or breastfeeding women

Contact & Investigator

Central Contact

Lise Laclautre

✉ promo_interne_drci@chu-clermontferrand.fr

📞 +33 4 73 754963

Principal Investigator

Russell Chabanne, MD MSc

PRINCIPAL INVESTIGATOR

University Hospital, Clermont-Ferrand

Frequently Asked Questions

Who can join the NCT05051397 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Ischemic Stroke, Acute. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT05051397 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT05051397 currently recruiting?

Yes, NCT05051397 is actively recruiting participants. Contact the research team at promo_interne_drci@chu-clermontferrand.fr for enrollment information.

Where is the NCT05051397 trial being conducted?

This trial is being conducted at Clermont-Ferrand, France.

Who is sponsoring the NCT05051397 clinical trial?

NCT05051397 is sponsored by University Hospital, Clermont-Ferrand. The principal investigator is Russell Chabanne, MD MSc at University Hospital, Clermont-Ferrand. The trial plans to enroll 50 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology