Abstract Policies & Exceptions

Note: Only those abstracts selected for release on site at the 2018 ASCO Annual Meeting will be designated as late-breaking abstracts (LBAs), including Plenary abstracts. 

Late-breaking abstracts (LBAs) will be publicly released on a rolling basis throughout the 2018 ASCO Annual Meeting. The complete embargo dates and public release schedule for LBAs are detailed below.

All other abstracts, including those submitted during the late-breaking submission time period but not selected as late-breaking abstracts, will be publicly released at 5:00 p.m. ET on May 16, 2018, and available online.


Embargo will lift:

Proceedings I Abstracts

5:00 p.m. ET - Wednesday, May 16

Publish Only Abstracts (online only, will not be printed in Proceedings I)

5:00 p.m. ET - Wednesday, May 16

Late-Breaking Abstracts presented in a press briefing or scientific presentation on:


Friday, June 1

1:00 p.m. CT - Friday, June 1

Saturday, June 2

6:30 a.m. CT - Saturday, June 2

Sunday, June 3

6:30 a.m. CT - Sunday, June 3

Monday, June 4 - Tuesday, June 5

6:30 a.m. CT - Monday, June 4