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 cancellations

Registration Cancellation Deadline: Monday, July 9, 2018, at 11:59 PM (EDT)                      

  • Registration Cancellation Fee: $50
  • Refunds will be processed after the Meeting.
  • Foundation donations, membership dues, and paper processing fees are nonrefundable.
  • To retain the Best of ASCO Videos and Slides, visit the ASCO University bookstore.
  • No refunds or cancellations received after the Monday, July 9, 2018, deadline

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

Hotel Changes and Cancellations

  • Through Wednesday, June 27, 2018: Changes or cancellations can be made online.
  • Thursday, June 28, 2018: Changes and cancellations cannot be made.
  • Beginning Friday, June 29, 2018: Contact the hotel directly to change or cancel a reservation.

Hotel Reservation Cancellation Deadline

  • 72 hours prior to your scheduled arrival date.
  • Cancelling your reservation less than 72 hours prior to your arrival date will result in a cancellation fee equal to the daily room rate plus tax.