Clinicaltrials.gov (U.S.A National Library of Medicine).http://clinicaltrials.gov [1]
Australian New Zealand Clinical Trials Registry (ANZCTR).http://www.anzctr.org.au/ [2]
Brazilian Clinical Trials Registry (ReBec).http://www.ensaiosclinicos.gov.br/ [3]
Chinese Clinical Trial Registry (ChiCTR).https://www.chictr.org.cn/ [4]
Clinical Research Information Service (CRiS), Republic of Korea.http://cris.nih.go.kr/cris/en/use_guide/cris_introduce.jsp [5]
Clinical Trials Registry - India (CTRI).http://ctri.nic.in/ [6]
EU Clinical Trials Register (EU-CTR).https://www.clinicaltrialsregister.eu/ [7]
German Clinical Trials Register (DRKS).http://www.germanctr.de/ [8]
Iranian Registry of Clinical Trials (IRCT).http://www.irct.ir/ [9]
ISRCTN. http://www.isrctn.com/ [10]
International Traditional Medicine Clinical Trial Registry (ITMCTR). http://itmctr.ccebtcm.org.cn/en-US [11]
Japan Registry of Clinical Trials (jRCT)https://rctportal.niph.go.jp/en/ [12]
Lebanese Clinical Trials Registry (LBCTR).https://lbctr.moph.gov.lb/ [13]
Thai Clinical Trials Registry (TCTR).http://www.clinicaltrials.in.th/ [14]
Pan African Clinical Trial Registry (PACTR).https://pactr.samrc.ac.za/ [15]
Peruvian Clinical Trial Registry (REPEC).http://https://ensayosclinicos-repec.ins.gob.pe/en/ [16]
Sri Lanka Clinical Trials Registry (SLCTR).https://www.slctr.lk/ [17]
Links:
[1] http://clinicaltrials.gov
[2] http://www.anzctr.org.au/
[3] http://www.ensaiosclinicos.gov.br/
[4] https://www.chictr.org.cn/
[5] http://cris.nih.go.kr/cris/en/use_guide/cris_introduce.jsp
[6] http://ctri.nic.in/
[7] https://www.clinicaltrialsregister.eu/
[8] http://www.germanctr.de/
[9] http://www.irct.ir/
[10] http://www.isrctn.com/
[11] http://itmctr.ccebtcm.org.cn/en-US
[12] https://rctportal.niph.go.jp/en/
[13] https://lbctr.moph.gov.lb/
[14] http://www.clinicaltrials.in.th/
[15] https://pactr.samrc.ac.za/
[16] https://ensayosclinicos-repec.ins.gob.pe/en/
[17] https://www.slctr.lk/