Remote Ischemic Conditioning in Acute Ischemic Stroke - A Clinical Trial Design

Area of Science:

• Neurology
• Cardiovascular Medicine
• Clinical Trials

Background:

• Remote ischemic conditioning (RIC) involves distant blood flow reduction to protect against injury.
• Potential mechanisms include neurovascular protection, anti-inflammatory effects, reduced excitotoxicity, and metabolic support.
• RIC is explored for acute ischemic stroke patients unsuitable for reperfusion therapies.

Purpose of the Study:

• To evaluate the efficacy and safety of RIC in acute ischemic stroke patients within the first five days post-stroke.
• To test the hypothesis that RIC reduces infarct size and enhances functional recovery.
• To assess neuroprotection in the reperfusion window and long-term clinical outcomes.

Main Methods:

• A multicenter, double-blind, controlled trial involving 200 acute ischemic stroke patients.
• Patients randomly assigned to experimental (RIC, 180 mmHg, twice daily for 5 days) or control (sham conditioning, 30 mmHg) groups.
• Primary outcome: difference in infarct volume at 180 days. Secondary outcomes: clinical scores (NIHSS, mRS, etc.), safety, recurrence, comorbidities, and mortality.

Main Results:

• Primary outcome data on infarct volume changes at 180 days are pending.
• Secondary outcome data on clinical scores, safety, and adverse events are being collected at 90 and 180 days.
• Analysis of stroke recurrence, comorbidities, and mortality within 180 days is ongoing.

Conclusions:

• The study is evaluating remote ischemic conditioning as a potential neuroprotective strategy for acute ischemic stroke.
• Results will determine RIC's impact on infarct size, functional recovery, and safety in patients ineligible for reperfusion.
• Findings will inform clinical practice regarding RIC's role in stroke management.