Today is 2023-02-03

Registration Guidence

Please read this guide carefully, if you have any questions, please contact us.

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QQ: 1193142709

Skype: wutaixiang

Tel.: most questions could be solved by reading this guidance; if necessary, please use email:; or qq: 1193142709

For retrive a missed user name or password, please send an email in which the user name and email address will be helpful.

Please note: we will contact you by web based phone or e-mail when we review your registration information, and in the process of conducting the trial or after completed the trial.

● Which clinical studies should be registered?

All of studies aim to evaluate the effects on human subjects for interventions include drugs, non-drug treatment, instruments and equipments designed as randomized controlled trial or case-control study, or cohort study, or non controlled study or other any observational studies of prevention and treatment studies, prognosis studies, cause studies and diagnostic tests should be registered.

● Free registration

Chinese Clinical Trial Registry is a non-benefit organization, any registration is free (no charge).

● Steps of registration

At the first, you should to establish your personal account in ChiCTR website then, login and select "Project info", "Project management" at left side, and then select "New" at the top of the window. You can start application for registration via fill electronic registration form online now.

We will prejudication for whether the suggested project according to the registration criteria;

If there is anything unclear, we will contact the registrant to dicuss or quire them provide necessary data by phone or email;

As the trial to be considered eligible for registration, a registration numer will be released. Then, an universal trial number (UTN) could be applied from WHO ICTRP within four weeks after registration at and put the UTN in the "Secondary ID" of the registration form.

● Results data requirement 

Results data (statistical results) should be submitted or upload to the Statistical Results box in the registration form. It should be disclosed to public after one year of the trials completed. 

● Two requirements very important

The registrant has to provide a copy of ethics approval letter and the study protocol including informed consent which should be uploaded via registration form. The protocol will be used to help us to understand the study design only when we perform the prejudication, and it will not be published.

Please note: for the purpose of promoting the quality of clinical studies, the protocol has to be developed according to the GCP standards and SPIRIT (  If not, the application of registration will be rejected.

● About historical versions of registration information

For the purpose of making the registration information understandable to the public, and guarantee the methodological correctness of clinical trials, we will edit and modify the contents when we review the registration form filled in by the applicants. The original version of the registration form will be saved as the "Historical version 1.0". Multiple versions will be generated due to saving many times in the process of reviewing. Thus, the editing processing can be tracked. Any modification by the applicants will generate new historical version, this could be recognized by the longer space of the time.

Special statement for retrospective registratoin: The Declaration of Helsinki (2008) requires that any clinical study involving human should be registered at public clinical register before recruitment of the first participant. Originally, we stated in 2007 that we will accept the retrospective registration until January 1, 2008; in 2011, we extended the deadline of retrospective registration to January 1, 2013.  Public sharing of IPD should be approved by the investigators. The IPD has to be submitted via ResMan (, the public management platform of clinical trials database. The use of ResMan is voluntary and without charge for the prospective registration.