Glioblastoma Remote Monitoring and Care - Research Protocol

Inclusion Criteria: * newly-diagnosed or recurrent glioblastoma undergoing treatment or active surveillance * at least 18 years of age at the time of study enrolment * Karnofsky Performance Status (KPS) ≥ 70% at time of study enrolment * able to comprehend informed consent form and provide informed consent * access to patient or caregiver's own Apple iPhone to interface with watch application for documentation of symptoms Exclusion Criteria: * under 18 years of age at the time of study enrolment * inability to give informed consent due to aphasia or other language barrier * tattoos located on the skin of the wrist or forearm where the Apple Watch will be placed or other skin conditions preventing adequate sensor function * inability to tolerate Apple Watch for at least 12 hours per day on at least 50% of days in a four-week period * no access to patient or caregiver Apple iPhone to document symptoms