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Evolocumab plus statin protocol targets early neurological deterioration in acute ischemic strokeNew trial plans to test evolocumab for acute ischemic stroke

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Key Takeaway
Note that no results are available as this is a study protocol for evaluating evolocumab in acute ischemic stroke.

The proposed randomized controlled trial aims to evaluate the efficacy of early evolocumab plus standard-dose statin compared to standard-dose statin therapy in patients with acute ischemic stroke (AIS) attributable to symptomatic intracranial atherosclerotic disease (sICAD). The study is designed for a multicenter setting in China with a planned sample size of 416 participants.

The primary outcome measure is the occurrence of early neurological deterioration (END) within 3 days after randomization, defined as an increase in NIHSS score of at least 2 points from baseline. Secondary outcomes include neurological improvement, changes in NIHSS scores, shifts in the 90-day modified Rankin Scale score distribution, recurrent stroke, and changes in lipid parameters.

The primary safety outcome is the incidence of moderate-to-severe systemic bleeding within 3 days after randomization. Because this is a protocol publication, no results regarding efficacy or safety are reported. Clinical application is currently not possible as data collection and analysis have not been completed.

How this fits prior evidence

How this fits prior evidence: This study addresses a gap in the management of acute ischemic stroke specifically attributable to symptomatic intracranial atherosclerotic disease. While previous coverage noted that evolocumab reduces MACE by 29% in patients with BMI greater than or equal to 35 kg/m and reduces cardiovascular events in diabetes without known atherosclerosis, this protocol investigates its specific role in the acute phase of stroke management.

When someone suffers an acute ischemic stroke, every moment counts. Doctors are looking for ways to stabilize patients and prevent further damage from underlying issues like intracranial atherosclerotic disease. This is a condition where plaque builds up in the blood vessels of the brain.

A new trial is being organized to test if adding a specific medication called evolocumab can help. The study will involve 416 patients who have experienced a stroke caused by these types of vessel issues. Researchers want to see if combining evolocumab with a standard dose of statin helps prevent early neurological deterioration, which is a sudden worsening of symptoms within the first three days.

Because this is currently a protocol, it means the study design has been laid out but the results are not yet available. The researchers will also track secondary goals like overall improvement in scores, changes in blood lipids, and whether patients experience a repeat stroke. While the trial plans to monitor for safety issues like bleeding, no data on outcomes exists yet.

What this means for you:
A new trial is designed to see if adding evolocumab to statins helps patients after a specific type of stroke.

Common questions

What is the goal of this new study?

The study aims to see if giving patients early evolocumab along with a standard dose of statin helps prevent their condition from getting worse within three days of having an acute ischemic stroke. They will also track things like lipid levels and whether the patient's neurological scores improve over time.

Who is eligible for this trial?

The study is designed for 416 patients who have suffered an acute ischemic stroke that is specifically linked to symptomatic intracranial atherosclerotic disease. This means the stroke was caused by a buildup of plaque in the blood vessels inside the skull.

Are there results available from this treatment yet?

No, because this document is a protocol, it describes the plan for the study rather than the final results. Since the trial has not been completed or reported on, no data regarding success rates or specific side effects are currently available.

Study Details

Study typeRct
Sample sizen = 416
EvidenceLevel 2
PublishedJul 2026
View Original Abstract ↓
Background Patients with acute ischemic stroke (AIS) attributable to symptomatic intracranial atherosclerotic disease (sICAD) remain at substantial risk of early neurological deterioration (END) despite standard medical treatment. Aim To determine whether early addition of a proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor to statin therapy reduces END in patients with AIS attributable to sICAD within 48 hours of symptom onset. Design The study of Combined Therapy with PCSK9 Inhibitor and Statin in Acute Ischemic Stroke (CAPTAIN) is a multicenter, prospective, randomized, open-label, blinded-endpoint trial conducted in China, with a planned sample size of 416 patients. Eligible patients will be randomized in a 1:1 ratio to receive either early evolocumab plus standard-dose statin or standard-dose statin therapy. Outcomes The primary efficacy outcome is the occurrence of END within 3 days after randomization, defined as an increase in the National Institutes of Health Stroke Scale score of at least 2 points from baseline. Secondary efficacy outcomes include neurological improvement, changes in National Institutes of Health Stroke Scale (NIHSS) score, shift in the 90-day modified Rankin Scale score distribution, recurrent stroke, and changes in lipid parameters. The primary safety outcome is the incidence of moderate-to-severe systemic bleeding within 3 days after randomization, as defined by the GUSTO criteria. Conclusions This study is expected to provide evidence on the efficacy and safety of the early addition of a PCSK9 inhibitor to statin therapy in patients with AIS attributable to sICAD. Trial registration number NCT06696820
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