U.S., April 8 -- ClinicalTrials.gov registry received information related to the study (NCT07514949) titled 'The Feasibility and Safety of RK-4 Injection Bypassing Blood-brain Barrier in the Treatment of Acute Large Hemispheric Infarction Using Intracalvariosseous Injection Device' on Nov. 27, 2025.

Brief Summary: A pilot study confirmed the feasibility and safety of neuroprotectant RK-4 intracalvariosseous(ICO) injection in patients with malignant middle cerebral artery infarction (mMCAI), showing a trend in improving 90-day functional scores compared to conventional treatment. The aim of this trial is to investigate the feasibility and safety of neuroprotective agent RK-4 injection using intracalvariosseous injection device in patients w...