Box 1.

Interview topic guide

Introduction
Introduce yourself.
State that interview will last around 30 minutes.
Check that participant is happy to start.
Question 1
Can you tell me about your own involvement in the delivery of pancreatic cancer services?
Question 2
A fast-track pathway for pancreatic cancer surgery was implemented as a pilot in University Hospitals Birmingham NHS Foundation Trust in 2015. How familiar are you with this work?
Question 3
Do you feel your own practice has changed in your centre as a result of the fast-track pathway?
Probe
How has practice changed?
Question 5
What do you think were the main barriers to implementing the pathway at your centre?
Question 6
What factors do you feel helped in the implementation of the pathway at your centre?
Question 7
Do you feel the pathway is sustainable in the long term?
Question 8
Is there anything else you would like to say?
Thank participant.