Changes or Cancellations

Last-minute changes happen. Reference the information below to help understand key dates and the process for any changes that you need to make to your Registration or Hotel Reservation.

Registration Changes and Cancellations

Submit registration changes or a cancellation for the 2017 Annual Meeting

Registration cancellation deadline: May 30, 2017, at 11:59 PM (EDT)                                  

  • Registration Cancellation Fee: $75
  • No refunds will be issued for cancellations received after the May 30, 2017 at 11:59 PM (EDT) cancellation deadline.
  • Refunds will be processed after the Meeting.
  • To retain 2017 ASCO Annual Meeting Videos and Slides, visit the ASCO University® Bookstore.

Registration substitutions must be sent via email and must be submitted by either the person who paid for the registration or by the original attendee. 

Hotel Reservation Changes and Cancellations

Changes and Cancellations:  Until May 10, 2017 at 11:59 PM (EDT), changes or cancellations can be made online. Changes and cancellations cannot be made from May 11 to May 15, 2017. Beginning May 16, 2017, contact the hotel listed on your hotel confirmation directly to make a change or cancel a reservation.

FINAL Hotel Reservation Cancellation Deadline: 72 hours prior to your scheduled arrival date.  Your credit card will be charged a cancellation fee equal to 100% of your scheduled stay if you cancel your reservation less than 72 hours prior to your scheduled arrival date.

Questions? Send us an email.