Attendees circle around an abstract poster.

ASCO is no longer accepting abstract submissions for the 2016 Annual Meeting; however, the pages above outline ASCO's abstract polices and submission requirements. Important dates in the abstract timeline appear below.

To view abstracts from the 2015 ASCO Annual Meeting, visit ASCO’s Meeting Library.

Abstract Submission Key Dates

March 15

Late-Breaking Data Submission Deadline

March 16-17

Scientific Program Committee Meets to Select Abstracts

Late March

First Authors Notified of Abstract Selection Decision

April 5

Abstract Withdrawal Deadline

April 25

Release of Abstract Titles (Accessible via ASCO's iPlanner tool)

May 18 at 5:00 PM (EDT)

Abstracts Released on ASCO's Meeting Library

Past Key Dates

November 13

Abstract Submitter Launches

February 2 by 11:59 PM (EST)

Abstract Submission Deadline