Welcome to the ACG 2026 Abstract Submission Site

The Abstract Submission Site for the ACG 2026 Annual Scientific Meeting is now closed.

ABSTRACT NOTIFICATIONS: Abstract acceptance/non-acceptance notifications were emailed to Presenting Authors on July 10th at 5:00pm (Eastern Time). If you submitted an abstract and did not receive an email on July 10th, please contact ACG via email at abstracts@gi.org. The deadline to respond to an invitation to present an abstract is 11:59pm (Eastern Time) on Friday, July 17, 2026. Please note: You may not have received notification if your email address changed after your abstract was submitted, or if your institution’s email server blocked, rejected, or flagged the email as spam/junk.

---

Please note that NO EDITS or additions to abstract or author information will be allowed after the submission deadline, and NO CHANGES to assigned presentation dates or times will be permitted.

Abstract Acceptance Notifications

All notifications of acceptance or non-acceptance were sent by email on July 10th to the person listed as Presenting Author for the abstract. The Presenting Author is responsible for notifying all co-authors.

Presenting Authors must officially accept the invitation to present their abstract by Friday, July 17 2026, and are expected to attend in-person to present their poster or oral paper. Presenters should register as an attendee of the Annual Scientific Meeting by September 16, 2026. ACG 2026 will be held October 9-14, 2026, at the Music City Center in Nashville, TN. Visit our meeting website for details and to register.

If you have questions, please email abstracts@gi.org.

Late-breaking Abstracts

The late-breaking abstract submission period will run from August 3-17, 2026. Details about late-breaking abstracts will be available in the Abstracts section of acgmeetings.gi.org in mid-July.

Guidelines for late-breaking abstracts will be the same as for the general submission period abstracts, with the following additional conditions:

• Abstracts will be considered only if they detail high-quality clinical research results that were not available or fully analyzed at the general abstract deadline (June 1, 2026).
• Abstracts that were already considered during the general abstract period should NOT be resubmitted.
• Case reports will not be considered.
• Late-breaking abstracts are only considered for oral presentation and not for poster presentation.
• Authors of accepted abstracts are required to register as an attendee of the Annual Scientific Meeting and are expected to present in person at the meeting.
• Submissions accepted as late-breaking abstracts will not be published in the online abstract issue of The American Journal of Gastroenterology.