This website can be used to cross-search the content of four national clinical research information
registries:
Japan Registry of Clinical Trials (JRCT),
The University Hospital Medical Information Network Center (UMIN-CTR),
The Japan Medical Association Center (JMACCT),
The Japan Pharmaceutical Information Center (JAPIC).
JPRN Search Portal
Clinical trial search site of countries
USA ClinicalTrials.gov （https://www.clinicaltrials.gov/）
EU EU Clinical Trials Register（https://www.clinicaltrialsregister.eu/ctr-search/search）
WHO ICTRP （https://apps.who.int/ictrpws/）
Article Search Site
Pubmed （http://www.ncbi.nlm.nih.gov/pubmed/）
MEDLINE（http://www.medline.com/）