Table 2: number of clinical trials recorded in the on-line registers as on 1 December 2015
Register	Total number of clinical trials on register	Number of South African clinical trials on register	Primary Registry and Trial Identifying Number System
ClinicalTrials.gov	209 474	2 260	NCT Number
Pan African Clinical Trials Register	658	174	PACTR
SANCTR	2 196	2 196	SANCTR Number
The European Union (EU) Clinical Trials Register	27 412	978	EudraCT Number
The International Clinical Trials Registry Platform (ICTRP) WHO	306 313	2 599	CTRI Number/ UTN Number
The International Standard Randomised Controlled Trial Number (ISRCTN) BioMed Central	14 387	149	ISRCTN