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CCTG Connection



Published:
Category: Group updates
CCTG Recognition Awards Nominations 2026
The Canadian Cancer Trials Group is seeking nominations for the 2026 Recognition Awards honouring individuals who have contributed significantly to the mission and activities of the Group. Read More

Published:
Category: Group updates
CCTG 2026-2027 New Investigator Cancer Trials Practicum
CCTG is now accepting applications for the 2026-2027 New Investigator Cancer Trials Practicum. The application deadline is January 9, 2026 with notification to the successful candidates at the beginning of February 2026. Read More

Published:
Category: Group updates
The CCTG 2026 Annual Spring Meeting of Participants

CCTG is pleased to announce that the 2026 Annual Spring Meeting of Participants will be held April 24-26, 2026, at the Chelsea Hotel in Toronto.

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Published:
Category: Group updates
Tissue Bank Holiday Season Shipment Notice and Central Office closure

CCTG Central Office 2025/2026 Holiday hours and closures 

  • December 24 – limited coverage 9am - 12pm EST
  • December 25 and 26 – office is closed
  • December 29 and 30 - limited coverage  9am – 5pm EST
  • December 31 - limited coverage  9am – 12pm EST
  • January 1st - office is closed  
  • January 2nd - limited coverage 9am – 5pm EST

Normal office hours resume on January 5th, 2026 at 8:30 am EST


Shipment of Specimens for Banking + Kit Supply

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Published:
Category: Publications
Publication: Correlative CO.28
A new correlative study from CO.28 has been published: Detection of Molecular Residual Disease by Circulating Tumor DNA in Early-Stage Node-Negative Rectal Cancers (CCTG CO.28) Using a Tumor-Informed Assay
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Published:
Category: Publications
Poster Presentation at the Society for Neuro-Oncology Annual Meeting
Low and Intermediate Grade Glioma Umbrella Study of Molecular Guided TherapieS (LUMOS2) study
 
A CCTG poster presentation at the Society for Neuro-Oncology Annual Meeting, held November 19-23, 2025 in Honolulu. The abstract was then published in the journal Neuro-Oncology.
 
Patients with progressive IDH-mutant grade 2-3 glioma have limited therapeutic options.
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Published:
Category: Publications
Publication: Post Hoc Analysis CRC6
Predictive Role of Circulating Tumor DNA in Stage III Colon Cancer Treated With Celecoxib: A Post Hoc Analysis of the CALGB (Alliance)/SWOG 80702 Phase 3 Randomized Clinical Trial. This post hoc analysis used a clinically validated, tumor-informed assay to determine ctDNA status in 940 patients with stage III colon cancer and found that ctDNA negativity was highly associated with improved survival.
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Published:
Category: Trials
Trial closure: CEC1

The CEC1 (EORTC 26053-22054) Phase III Trial On Concurrent And Adjuvant Temozolomide Chemotherapy In Non-1p/19q Deleted Anaplastic Glioma. The CATNON Intergroup Trial has permanently closed.

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