Neurology Clinical Trials Market Size, Share & Trends Analysis Report By Phase (Phase I, Phase II, Phase III, Phase IV), By Study Design (Interventional, Observational, Expanded Access), By Indication (Epilepsy, Parkinson's Disease (PD), Huntington's Disease, Stroke, Traumatic Brain Injury (TBI), Amyotrophic Lateral Sclerosis (ALS), Muscle regeneration, Others) and By Region (North America, Europe, APAC, Middle East and Africa, LATAM) Forecasts, 2026-2034