Characteristics of clinical trial websites: information distribution between ClinicalTrials.gov and 13 primary registries in the WHO registry network

Table 2 Website content

Assessment item	JPRN	CT.gov	ANZCTR	ReBec	ChiCTR	CRiS	RPCEC	EU CTR	DRKS	IRCT	ISRCTN	NTR	PACTR	SLCTR
Pages for each type of user, such as patients and health professionals	No	Partly	No	No	No	No	No	No	No	No	No	No	No	No
Content for each type of user, such as patients, health professionals and clients	No	Partly	No	No	No	No	No	No	No	No	No	No	No	No
Clinical trial information pages (patient)	–	–	–	–	–	–	–	–	–	–	–	–	–	–
Clinical trial information pages (health professional)	–	–	–	–	–	–	–	–	–	–	–	–	–	–
Information pages on diseases (patient)	No	No	No	No	No	No	No	No	No	No	No	No	No	No
Information pages on medicine and treatment for diseases (patient)	No	No	No	No	No	No	No	No	No	No	No	No	No	No
Links to information on diseases, drugs or treatments	No	No	No	No	No	No	No	No	No	No	No	No	No	No
List of ongoing clinical trial information	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Information on the institutional review board (IRB)	No	Partly	No	No	No	No	No	No	Partly	No	No	No	No	Partly
IRB information page (patient)	–	Partly	No	No	No	No	No	No	No	No	No	No	No	No
IRB information page (health professional)	–	No	No	No	No	No	No	No	No	No	No	No	No	No
Use of videos and images	No	No	No	No	No	No	No	No	No	No	No	No	No	No
Frequently asked questions (patient)	Yes	Partly	No	No	Yes	No	No	Yes	Yes	Yes	No	No	Yes	Yes
Frequently asked questions (health professional)	–	–	Yes	Yes	No	No	No	–	–	–	Yes	No	–	–
Glossary (patient)	Yes	Yes	No	No	No	No	No	Yes	Yes	No	No	No	No	No
Glossary (health professional)	–	–	No	No	No	No	No	–	–	No	–	No	No	No

‘No’ encompasses ‘not provided’, ‘no description’ and ‘no distinction’. A dash (–) indicates that the response is summarized in the answer of another item or could not be evaluated.

ISSN: 1745-6215