Clarifying a misunderstanding on clinical trial registry
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《加拿大医疗协会学报》
The memorandum to which Deborah Zarin refers was sent in early September 2005 to warn researchers whose trials were funded by CIHR that they should immediately register their trials with ClinicalTrials.gov. The registry used by CIHR since 2004, International Standard Randomised Controlled Trial Number Register-Current Controlled Trials Registry (ISRCTN-CCT), was not recognized by the majority of members of the ICMJE, including CMAJ, because it did not have a "not-for-profit" status. Failure to register with ClinicalTrials.gov could have compromised researchers' ability to publish their trial results.
The statements about ClinicalTrials.gov in the memorandum described the situation that existed in 2004, and were provided to explain why at that time CIHR chose to register the trials that it funds with ISRCTN-CCT, rather than with Clinical Trials.gov. These statements were not intended to describe the current state of ClinicalTrials.gov, and I deeply regret the misunderstanding. CIHR endorses ClinicalTrials.gov as a high-quality public trials registry.
Since I wrote the memorandum in early September, the ISRCTN-CCT registry has acquired not-for-profit status, and now complies with the ICMJE requirements. CIHR will therefore continue to register the trials that it funds with the ISRCTN-CCT. CIHR is also working with the World Health Organization to establish a global system for trials registration, which will link the various public registries to improve access and reduce duplication.(Mark Bisby)
The statements about ClinicalTrials.gov in the memorandum described the situation that existed in 2004, and were provided to explain why at that time CIHR chose to register the trials that it funds with ISRCTN-CCT, rather than with Clinical Trials.gov. These statements were not intended to describe the current state of ClinicalTrials.gov, and I deeply regret the misunderstanding. CIHR endorses ClinicalTrials.gov as a high-quality public trials registry.
Since I wrote the memorandum in early September, the ISRCTN-CCT registry has acquired not-for-profit status, and now complies with the ICMJE requirements. CIHR will therefore continue to register the trials that it funds with the ISRCTN-CCT. CIHR is also working with the World Health Organization to establish a global system for trials registration, which will link the various public registries to improve access and reduce duplication.(Mark Bisby)