E-clinical Solution Software Market Size & Forecasts 2026-2035, By Segments (Delivery Mode, Clinical Trial Phase, End User, Product), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (Medidata Solutions, Oracle Health Sciences, IBM Watson Health, Parexel, Veeva Systems)