CC-101 (f/k/a NR1) Neural Stem Cell Transplantation for Adults With Chronic Ischemic Stroke

CC-101 (f/k/a NR1) is an investigational allogeneic neural stem cell therapy being developed to support endogenous repair and regenerative mechanisms within the brain following ischemic injury and infarction (i.e., ischemic stroke). Rather than directly replacing stroke-damaged and dead brain cells and tissue, CC-101 is intended to promote recovery through local production of biologically active factors that support neurogenesis (i.e., new brain cell production), angiogenesis (i.e., new blood vessel formation), plasticity (i.e., rewiring of synaptic connections), extracellular matrix remodeling (i.e., change materials around brain cells), and modulation of inflammation. The suNR1se II Study is a prospective, randomized, controlled Phase 2b study designed to evaluate the efficacy and safety of stereotactic intracerebral administration of CC-101 in adults with chronic ischemic subcortical ischemic stroke, with or without adjacent cortical involvement. Participants will be randomized equally to one of three study arms: 1) CC-101 plus tacrolimus (Experimental Arm A), 2) sham surgery plus placebo (Control Arm B), or 3) CC-101 plus placebo (Exploratory Arm C). The inclusion of sham surgery control (Arm B) and tacrolimus-matched placebo anti-rejection therapy (Arms B \& C) is intended to support rigorous evaluation of CC-101 treatment effect and further characterization of the role of tacrolimus in allogeneic neural stem cell therapy for chronic ischemic stroke. The primary efficacy assessment will evaluate changes in arm and leg motor functions between baseline and 12 months following intervention. Safety assessments will include adverse events, serious adverse events, neurosurgical complications, imaging findings, laboratory assessments, hospitalization events, and mortality.