Canadian Cancer Trials Group Bulletins

Trial Management Group

Permanent Study Closure: Part III - Intergroup-Led Trials

As you know, Central Office has been working on a systematic process to help identify and permanently close out trials that have long since closed to accrual, have completed their final analysis, and have been published (or for which there are no plans to publish). To date, we have completed two parts of this project for Canadian Cancer Trials Group-led trials and are happy to report that a total of 102 trials have been permanently closed. All information disseminated to sites to date can be found at the following link:

The third part of this project involved looking at those trials led by our Intergroup (IG) collaborators. On May 11, a memo was circulated to participating centres, Disease Site Chairs and pharmaceutical company partners notifying them of those IG-led trials that are now permanently closed.

To view this memo (and the list of trials that are permanently closed), please use the following link:

If you have any questions about this, please contact Anna Sadura, Trial Coordination and Conduct Manager, at