Each year, hundreds of ancillary events are held adjacent to ASCO meetings and symposia. Ancillary events include, but are not limited to:

  • Advisory Board Meetings
  • Educational Events
  • Focus Groups
  • Hospitality Suites (in a meeting room)
  • Hospitality Desks
  • Internal Corporate Business Meetings
  • Investigator Meetings
  • Investor Meetings
  • Offices
  • Social Events

ASCO aims to provide superior customer service to members, volunteers, and meeting attendees. To achieve this aim, ASCO leadership requires all organizations (commercial and non-profit) that wish to hold functions during any ASCO meeting or symposium to complete an Ancillary Event Request. This applies to functions of any size or nature, and in any location. A completed Ancillary Event Request provides ASCO with the necessary information to assist members, volunteers, and meeting attendees with any questions that may arise.

Guidelines and Policies

Organizations submitting an ancillary event request should review the Ancillary Event Guidelines for additional information including:

  • Approved activities within ancillary space
  • Mailing lists
  • Marketing guidelines
  • Procedures for activities and events held within and outside of Symposia and Meeting space

In addition to the Guidelines above, ancillary event hosts must comply with the same policies as exhibiting companies.

Policies for Exhibitors and Other Organizations at ASCO Meetings

Guidelines on Prioritizing Selection of Exhibit Space and Hotel Accommodations for 2019 ASCO Annual Meeting

Blackout Times for Meetings

Organizations may not hold functions during the defined “blackout” times. ASCO strictly enforces the blackout times at the request of our members.

2018 ASCO Oncology Practice Conference
Thursday, September 27    8:00 AM-5:30 PM

2018 ASCO Quality Care Symposium
Friday, September 28         7:50 AM-6:15 PM
Saturday, September 29     7:00 AM-4:45 PM 

2018 Palliative and Supportive Care in Oncology Symposium
Friday, November 16         7:45 AM-6:00 PM
Saturday, November 17     7:00 AM-4:30 PM

2019 Gastrointestinal Cancers Symposium
Thursday, January 17        7:50AM - 6:30PM
Friday, January 18             7:00AM - 6:30PM
Saturday, January 19         7:00AM - 4:30PM

2019 Genitourinary Cancers Symposium
Thursday, February 14      7:45 AM – 6:30 PM
Friday , February 15          7:00 AM – 6:15 PM
Saturday, February 16      7:00 AM – 5:00 PM

2019 ASCO-SITC Clinical Immuno-Oncology Symposium
Thursday, February 28           7:30 AM - 7:00 PM
Friday, March 1                      8:25 AM - 6:30 PM
Saturday, March 2                  7:00 AM - 4:00 PM

Deadlines and Submit Request

The following meetings do not have a formal request system:

  • Best of ASCO Meetings
  • Palliative and Supportive Care in Oncology Symposium
  • Cancer Survivorship Symposium: Advancing Care and Research
  • ASCO Oncology Practice Conference
  • ASCO Quality Care Symposium

2019 Gastrointestinal Cancers Symposium: Wednesday, December 12 at 11:59 PM ET

2019 Genitourinary Cancers Symposium: Wednesday, January 9 at 11:59 PM ET

2019 ASCO-SITC Clinical Immuno-Oncology Symposium: Wednesday, January 23 at 11:59 PM ET

Submit an Ancillary Event Request

Contact Information

Email ASCO event request
703-631-6200

Official Housing Bureaus

ASCO Annual Meeting
Email housing
888-788-1522 or 703-449-6418

ASCO Exhibits
Email ASCO Exhibits
571-483-1300

Premium Ancillary Educational Event Package

The Premium Ancillary Educational Event Marketing Package is an opportunity for organizers of CE accredited events to feature their event in ASCO-produced meeting materials and products, in addition to other benefits that serve to increase the visibility of their event to potential attendees. If you are interested in participating in the program, please follow the links below for more information. 

2019 Gastrointestinal Cancers Symposium
2019 Genitourinary Cancers Symposium
2019 ASCO-SITC Clinical Immuno-Oncology Symposium