SOUSEIKAI is the largest and most experienced Phase 1 clinical research center in Japan with a 362 bed capacity and 5,500+ studies to date. Since 2010, we have conducted 70+ vaccine clinical trials in all phases 1-4, and have been a clinical trial site leader for all major COVID-19 pandemic vaccines. Leveraging our broad industry network, we have been helping overseas sponsors and CROs access the lucrative Japanese market for over 36 years.