Maintenance Window for all COG Systems and Web Sites

On Sunday, April 5th from 10:00am until 2:00pm (PST) all COG networks and Web sites will be unavailable while we perform important system maintenance. During this outage, COG Member institutions will not be able to enroll patients or submit data in RDE1, eRDES and OPEN systems. Please plan accordingly.

The information and content provided on this website is made available for informational purposes only for children and their families affected by cancer. While the Children's Oncology Group strives to provide accurate and up-to-date information, the information may be out of date or incomplete in certain respects. Please do not rely on this information and seek the care of a qualified medical professional if you have questions regarding a specific medical condition, disease, diagnosis or symptom. The information and content presented herein is not intended to replace the independent clinical judgement, medical advice, screening, health counseling, or other intervention performed by your (or your child's) health care provider. Please contact "911" or your emergency services if this is a health emergency. No endorsement of any specific tests, products, or procedures is made herein.