Enhanced Pain Coping in Cancer (EPIC): A Study of Managing Treatment-Related Joint Pain in Breast Cancer Survivors

This study is testing two types of group therapy — mindfulness-based (MORE) and supportive group therapy — to help breast cancer survivors manage joint pain caused by hormone-blocking medications called aromatase inhibitors (like anastrozole, letrozole, or exemestane). Joint pain is a common side effect that causes many women to stop taking these important medications. **You may be eligible if...** - You are a woman aged 18 or older with a history of stage I, II, or III breast cancer - You are currently taking an aromatase inhibitor and have been for at least 28 days - You plan to continue taking the medication for at least 12 more months - You have significant joint pain (rated 4 or higher out of 10) that you believe is related to your medication - You have had pain on at least 15 days in the past month, lasting at least one month - You have access to video calls from a private space **You may NOT be eligible if...** - You have metastatic (stage IV) breast cancer - You completed chemotherapy, surgery, or radiation less than 4 weeks ago - Your joint pain is due to inflammatory arthritis (like rheumatoid arthritis or gout) - You've had joint surgery or injections recently or have them planned soon - You have active suicidal thoughts or psychosis Talk to your doctor to see if this trial is right for you.