The International Symposium on Pediatric Pain (ISPP) was first held in 1988 in Seattle, USA and has been organised biannually ever since. See below for an overview. Program brochures for ISPPs from 2000 onward are located here (IASP login required), available as one PDF for each conference.
Update on the 14th ISPP:
We are delighted to announce that the 14th International Symposium on Pediatric Pain will be held in Halifax, Nova Scotia, Canada. October 1-5. 2023. Many of you are familiar with Nova Scotian hospitality from previous conferences at White Point Beach, and we can assure you that this will be a delightful, educational, and inspiring experience. More information on the program will be forthcoming, but in the meantime, have a look at this short video. https://vimeo.com/687192001