Online pain coping skills may ease joint pain in breast cancer survivors

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Female sex * Aged 18 years old or older * Diagnosed with Stage 0-III hormone receptor positive breast cancer * Completed primary cancer treatment (surgery, chemotherapy, and/or radiation therapy) * Postmenopausal * Currently taking AI therapy (letrozole, exemestane, or anastrozole) * Reporting musculoskeletal pain that developed or worsened since starting AI therapy * Reporting at least 15 days of pain in the past 30 days * A worst pain rating of 4 or more on an 11 point (0-10) numerical rating scale in the past week * Based on known factors affecting their prognosis, patient is likely to be able to complete the study protocol * ECOG performance status of 0-2 * English proficient * If participants are taking analgesics, they must be on a stable analgesic regimen for at least 14 days prior to enrollment and should not have planned upward dose titration of their analgesics during the study period. (Note: Patients may elect to decrease their analgesic use during the study as per discussion with their provider. Unexpected dose adjustments including dose escalations due to unforeseen clinical need is allowed. Cannabis taken for pain relief would qualify as an analgesic) * Comfortable using a tablet computer, a computer, or a smartphone to access online training Exclusion Criteria: * Evidence of metastatic disease * Other active cancer (with the exception of non-melanoma skin cancer) * Completed chemotherapy or radiation therapy less than four weeks prior to enrollment (these treatments can cause temporary exacerbation of musculoskeletal symptoms that typically resolve spontaneously) * Completed surgery less than 8 weeks prior to enrollment (because surgery can cause temporary post-surgical pain that typically resolves in this period of time); minor surgeries may be allowed more recently than 8 weeks at the discretion of the study team * Have diagnosed or suspected condition that would interfere with informed consent or completion of study activities (e.g., significant impairment in cognition or uncorrected hearing/vision)