Upcoming conference abstract and poster deadlines for 2026
Below is an updated list of 2026 conference abstract and poster submission deadlines. All times are listed in Montreal time (Eastern Time, ET). Dates are based on official conference information where available and will be updated as new calls are released.
Confirmed deadlines (official sources)
- Society of Surgical Oncology Annual Meeting (SSO)
Abstract submission deadline: October 13, 2025 — 11:59 PM (Montreal time, ET)
Late-breaking abstract deadline: December 1, 2025 — 11:59 PM (Montreal time, ET)
- American Society of Breast Surgeons Annual Meeting (ASBrS)
Regular abstract deadline: November 6, 2025 — 11:59 PM (Montreal time, ET)
Late-breaking abstract deadline: January 9, 2026 — 11:59 PM (Montreal time, ET)
- American Society of Clinical Oncology Annual Meeting (ASCO)
Abstract submission deadline: January 27, 2026 — 11:59 PM (Montreal time, ET)
- ESMO Breast Cancer Congress (European Society for Medical Oncology – Breast Cancer)
General abstract deadline: March 27, 2026 — 11:59 PM (Montreal time, ET)
Late-breaking abstract deadline: March 31, 2026 — 11:59 PM (Montreal time, ET)
Deadlines to be confirmed
- San Antonio Breast Cancer Symposium (SABCS)
Status: 2026 abstract deadlines not yet announced.
- International Symposium on Hereditary Breast and Ovarian Cancer (BRCA)
Status: 2026 abstract deadlines to be confirmed.
Additional conferences (deadlines will be added when announced)
- Canadian Association of General Surgeons Annual Meeting (CAGS) — TBC
- Canadian Society of Surgical Oncology Annual Scientific Meeting (CSSO) — TBC
- European Society of Surgical Oncology Congress (ESSO) — TBC
- International Society of Geriatric Oncology Annual Meeting (SIOG) — TBC
Advice for Trainees Preparing Conference Abstracts & Posters
- Plan early: Start preparing abstracts at least 2–3 months in advance.
- Confirm requirements: Always review conference-specific abstract guidelines.
- Align with your supervisor: Confirm target meetings and authorship early.
- Design for clarity: Posters should be visually clear and easy to read.
- Practice your pitch: Prepare short and extended explanations of your work.
- Track deadlines: Record submission and acceptance dates for your CV.
For questions regarding conference selection or timelines, trainees are encouraged to consult their supervisor or research coordinator.
Note: Conference deadlines are subject to change. Always confirm details on the official conference website. All times listed are in Montreal time (ET).
