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

April 16, 2026 updated by: Memorial Sloan Kettering Cancer Center

The researchers are doing this study to compare two different types of group therapy and find out whether they are effective approaches for helping breast cancer survivors manage joint pain caused by aromatase inhibitors (AI). This type of joint pain is called AI-associated arthralgia, or AIA, and it is common in people taking AIs. AIA and its associated symptoms can make some people decide to stop taking their medication. The study will look at the effects of two different types of group therapy on participants' cancer-related symptoms (such as pain, fatigue, and anxiety), their ability to continue taking AIs on a regular schedule, and their quality of life. We will measure participants' quality of life by having them fill out questionnaires.

Both groups will have 2-hour group therapy sessions once a week, over the course of 8 weeks. During the sessions, you will be in a group of 6-10 participants, who may be a mixture of patients from both MSK and University of California San Diego (UCSD).

Study Overview

Study Type

Interventional

Enrollment (Estimated)

200

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Jun Mao, MD, MSCE
  • Phone Number: 646-608-8553
  • Email: maoj@mskcc.org

Study Contact Backup

  • Name: Karolina Bryl, PhD
  • Phone Number: 646-608-8573
  • Email: brylk@mskcc.org

Study Locations

    • California
      • San Diego, California, United States, 92103
        • Recruiting
        • University of California San Diego (Data collection and Data analysis)
        • Contact:
          • Eric Garland, PhD, LCSW
          • Phone Number: 801-581-3826
    • Florida
      • Tallahassee, Florida, United States, 32306
        • Not yet recruiting
        • Florida State University
        • Contact:
    • New Jersey
      • Basking Ridge, New Jersey, United States, 07920
        • Recruiting
        • Memorial Sloan Kettering Basking Ridge (All Protocol Activities)
        • Contact:
          • Jun Mao, MD, MSCE
          • Phone Number: 646-888-0863
      • Middletown, New Jersey, United States, 07748
        • Recruiting
        • Memorial Sloan Kettering Monmouth (All Protocol Activities)
        • Contact:
          • Jun Mao, MD, MSCE
          • Phone Number: 646-888-0863
      • Montvale, New Jersey, United States, 07645
        • Recruiting
        • Memorial Sloan Kettering Bergen (All Protocol Activities)
        • Contact:
          • Jun Mao, MD, MSCE
          • Phone Number: 646-888-0863
    • New York
      • Commack, New York, United States, 11725
        • Recruiting
        • Memorial Sloan Kettering Suffolk- Commack (All Protocol Activities)
        • Contact:
          • Jun Mao, MD, MSCE
          • Phone Number: 646-888-0863
      • Harrison, New York, United States, 10604
        • Recruiting
        • Memorial Sloan Kettering Westchester (All Protocol Activities)
        • Contact:
          • Jun Mao, MD, MSCE
          • Phone Number: 646-888-0863
      • New York, New York, United States, 10065
        • Recruiting
        • Memorial Sloan Kettering Cancer Center (All Protocol Activities)
        • Contact:
          • Jun Mao, MD, MSCE
          • Phone Number: 646-888-0863
      • Uniondale, New York, United States, 11553
        • Recruiting
        • Memorial Sloan Kettering Nassau (All Protocol Activities)
        • Contact:
          • Jun Mao, MD, MSCE
          • Phone Number: 646-888-0863

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥18 years
  • English-proficient women with a history of stage I, II, or III breast cancer
  • Free of oncologic disease by clinical examination and history;
  • Receiving third-generation AI therapy (anastrozole, letrozole, or exemestane) for at least 28 days prior to consent with plan to continue for at least another 12 months;
  • Worst joint pain rated at least 4 or greater on a 0-10 numeric rating scale in the preceding week prior to consent;
  • Reporting at least 15 days with pain in the preceding 30 days prior to consent;
  • Experiencing joint pain for at least one month;
  • Pain attributed to AI therapy;
  • Willing to adhere to all study-related procedures, including randomization to one of two treatment arms: Mindfulness-Oriented Recovery Enhancement (MORE) or Supportive Group Psychotherapy (SG);
  • Able to attend video-call sessions in a quiet/private location.

Exclusion Criteria:

  • Metastatic breast cancer (stage IV);
  • Completed chemotherapy, surgery, or radiation therapy less than 4 weeks prior to enrollment;
  • Pain attributed to inflammatory arthritis (i.e. rheumatoid arthritis, gout, pseudogout);
  • Surgery or joint injection involving the affected joints within the last month or planned within the next six months;
  • Active suicidality or psychosis as determined by the Mini-International Neuropsychiatric Interview.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: MORE Treatment Group
Participants randomized to the MORE arm will participate in eight weekly, two-hour group sessions following an established protocol. MORE sessions involve instruction in three therapeutic skills: 1) mindfulness to reduce pain and increase self regulation over maladaptive pain coping habits, (2) reappraisal to decrease psychological distress and negative affect, and 3) savoring to amplify natural reward processing and evoke positive emotion (see Figure 2). Participants will be asked to engage in 15 minutes per day of skill practice at home guided by audio recording, and to record the number of minutes they engaged in skill practice via a weekly Research Electronic Data Capture (REDCap) survey.
filled out up to 24 weeks
eight weekly two-hour MORE sessions
Active Comparator: Supportive Psychotherapy Control Group
Participants randomized to SG will participate in eight weekly two-hour SG sessions led by the same instructors who deliver MORE interventions. The instructors will lead discussions on themes pertinent to chronic pain and cancer survivorship (see Figure 3) but will not teach MORE skills. To match the MORE homework requirement, SG participants will be asked to journal for 15 minutes/day on weekly session topics. Providers will employ empathic responding, elicit emotional expression, and promote a positive group climate.
filled out up to 24 weeks
eight weekly two-hour SG sessions

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pain Interference
Time Frame: up to 24 weeks
Pain interference will be assessed using the 7-item Pain Interference subscale from the Brief Pain Inventory Short Form (BPI-SF). Each item is rated on a scale from 0 ("does not interfere") to 10 ("completely interferes"), with higher scores indicating worse interference. The BPI is a widely used, reliable, valid, and responsive tool for measuring pain (Cronbach's α 0.77-0.91). The Pain Interference subscale will be administered at baseline, weekly during the 8-week intervention, and at weeks 12 and 24. Completing the survey requires approximately 1 minute.
up to 24 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pain Severity
Time Frame: baseline, week 8, week 12, and week 24
Pain Severity will be assessed using the 4-item Pain Severity subscale from the Brief Pain Inventory Short Form (BPI-SF). Each item is rated on a scale from 0 (no pain) to 10 (pain as bad as you can imagine), with higher scores indicating worse pain. Pain Severity will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 1 minute.
baseline, week 8, week 12, and week 24
Pain Catastrophizing
Time Frame: baseline, week 8, week 12, and week 24
Pain Catastrophizing will be assessed using a 13-item Pain Catastrophizing Scale (PCS) measuring the negative cognitive-emotional response to pain. Patients rate the degree to which they experience thoughts and feelings that may be associated with pain on a 0 (not at all) to 4 (all the time) scale. The PCS yields a total score and three subscales scores assessing rumination, magnification, and helplessness. It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 4 minutes.
baseline, week 8, week 12, and week 24
Patient Global Impression of Change
Time Frame: week 8, week 12, and week 24
Patient Global Impression of Change (PGI-C) will be assessed on a one-item scale assessing a clinically important change from the patient's perspective. Patients respond to "How would you describe your pain since you began the treatment?" on a 7-point scale ranging from "very much worse" to "very much improved." Subjects reporting "much improved" and "very much improved" will be classified as responders. The PGI-C will be administered at week 8, week 12, and week 24. Completing the survey requires approximately 1 minute.
week 8, week 12, and week 24
Anxiety/Depression
Time Frame: baseline, week 8, week 12, and week 24
Anxiety and Depression will be assessed on a 14-item Hospital Anxiety and Depression Scale (HADS) assessing anxiety (7 items) and depression (7 items) on a 4-point scale (0-3). Scores range from 0-21, with higher scores indicating higher symptomatology. Established cutoffs classify symptoms as not significant (0-7), subclinical (8-10), or clinically significant (11-21). The HADS will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 4 minutes.
baseline, week 8, week 12, and week 24
Insomnia
Time Frame: baseline, week 8, week 12, and week 24
Insomnia severity will be assessed on a 7-item Insomnia Severity Index (ISI) measuring subjective insomnia severity on a 0-4 scale, with higher scores indicating more severe insomnia symptoms. Established cutoffs classify ISI as "no clinically significant insomnia (< 8,), "subthreshold insomnia (8-14)", "clinical insomnia (moderate severity; 15-21)", and "clinical insomnia (severe, > 21)". It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 2 minutes.
baseline, week 8, week 12, and week 24
Fatigue
Time Frame: baseline, week 8, week 12, and week 24
Fatigue will be assessed on a 9-item Brief Fatigue Inventory (BFI) instrument assessing fatigue severity (3 items) at its "worst," "usual," and "now" during normal waking hours and amount that fatigue has interfered (6 items) with different aspects of the patient's life during the past 24 hours. Responses are measured on a 0-10 scale. Higher scores indicate worse fatigue and interference. It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 3 minutes.
baseline, week 8, week 12, and week 24
Global Health
Time Frame: baseline, week 8, week 12, and week 24
Global Health will be assessed using a 10-item PROMIS Global Health Scale (PROMIS-GHS) survey assessing health-related quality of life, including physical, mental, social, and overall health. Each item is rated on a 5-point scale, with higher scores indicating better overall health. It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 3 minutes.
baseline, week 8, week 12, and week 24
Perceptions of aging due to arthralgia
Time Frame: baseline, week 8, week 12, and week 24
Perceptions of aging due to arthralgia will be measured on a 8-item Penn Arthralgia Aging Scale (PAAS) assessing how joint pain affects body image and mental state. Each item is rated on a 0 (not at all) to 4 (completely) scale. Ratings from all items are added together to create a PAAS total score, ranging from 0 to 32. Higher scores indicate more intense perceptions of arthralgia-associated aging. It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 2 minutes.
baseline, week 8, week 12, and week 24
Pleasant and painful sensations in the body
Time Frame: baseline, week 8, week 12, and week 24.
Pleasant and painful sensations in the body will be measured on Sensation Manikin 2.0 (SM 2.0) - a digital, front- and back-facing human figure silhouette overlaid with a grid of 469 "sensation" pixels where patients can report the distribution of pleasant and painful sensations in the body. SM 2.0 provides three scores: 1) unpleasant sensation score representing the total body area experienced as unpleasant; 2) pleasant sensation score, representing the total body area experienced as pleasant; and 3) a sensation ratio score. It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 3 minutes.
baseline, week 8, week 12, and week 24.
Reappraisal
Time Frame: baseline, week 8, week 12, and week 24
Reappraisal will be measured on a 9-item Mindful Reappraisal of Pain Sensations Scale (MRPS) questionnaire assessing the frequency of various forms of mindful reinterpretation of pain. Respondents rate how often they used the different ways of coping with pain in the past week on a Likert-type scale ranging from 0 (never do that) to 6 (always do that). It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 2 minutes.
baseline, week 8, week 12, and week 24
Decentering
Time Frame: baseline, week 8, week 12, and week 24
Decentering will be measured on a Metacognitive Processes of Decentering Scale (MPoD). The MPoD consists of the 15-item Trait (MPoD-t) and 3-item State (MPoD-s) subscales assessing decentering and the metacognitive process of decentering including meta-awareness, (dis)identification with internal experience, and (non)reactivity to internal experience. We will use the MPoD-T (Trait subscale) only. It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 2 minutes.
baseline, week 8, week 12, and week 24
Nondual awareness
Time Frame: baseline, week 8, week 12, and week 24.
Nondual awareness will be measured on a Nondual Awareness Dimensional Assessment (NADA) scale. The NADA consists of two measures that assess experiences of nondual awareness (NDA), including a 13-item trait-based assessment (NADA-T) and 3-item state-based assessment (NADA-S). Respondents answer each item of the NADA-T on a 5-point Likert-type scale ranging from 1 (never or very rarely) to 5 (very often or always), and each item of the NADA-S on a 11-point Likert-type scale ranging from 0 (not at all) to 10 (very much). It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 4 minutes.
baseline, week 8, week 12, and week 24.
Meaning in Life
Time Frame: baseline, week 8, week 12, and week 24
Meaning in Life will be measured on a 10-item Meaning in Life Questionnaire (MLQ) designed to measure two dimensions of meaning in life: (1) Presence of Meaning (how much respondents feel their lives have meaning), and (2) Search for Meaning (how much respondents strive to find meaning and understanding in their lives). Respondents answer each item on a 7-point Likert-type scale ranging from 1 (Absolutely True) to 7 (Absolutely Untrue). It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 2 minutes.
baseline, week 8, week 12, and week 24
Emotion Regulation
Time Frame: baseline, week 8, week 12, and week 24.
Emotion Regulation will be measured on a 10-item Emotion Regulation Questionnaire (ERQ) designed to measure respondents' tendency to regulate their emotions in two ways: (1) Cognitive Reappraisal (6 items) and (2) Expressive Suppression (4 items). Respondents answer each item on a 7-point Likert-type scale ranging from 1 (strongly disagree) to 7 (strongly agree). We will use the Reappraisal subscale only (ERQ-SE). It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 2 minutes.
baseline, week 8, week 12, and week 24.
Savoring
Time Frame: baseline, week 8, week 12, and week 24
Savoring will be measured on a 4-item Brief Savoring Inventory (BSI) scale consisting of four items that assess methods of intensifying or prolonging positive experiences by focusing on present-moment experience. Respondents answer each item on a 5-point Likert scale from 1 (Strongly Disagree) to 5 (Strongly Agree). It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 1 minute.
baseline, week 8, week 12, and week 24
Compassion
Time Frame: baseline, week 8, week 12, and week 24.
Compassion will be measured on a 5-item Compassion Subscale of Dispositional Positive Emotion Scale (CS-DPES) subscale derived from the Dispositional Positive Emotion Scale, consisting of seven subscales (joy, contentment, pride, love, compassion, amusement and awe) that measure one's dispositional tendencies to feel positive emotions towards others in their daily lives. Respondents are asked how much they identify with each of the items within each subscale (or emotions) on a 7-point Likert scale ranging from 1 (Strongly disagree) to 7 (Strongly agree). It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 1 minute.
baseline, week 8, week 12, and week 24.
Global self-compassion
Time Frame: baseline, week 8, week 12, and week 24
Global self-compassion will be measured on a 6-item State Self-Compassion Scale (SSCS-S). Respondents answer each item of the SSCS-S on a 5-point Likert-type scale ranging from 1 (Not at all true for me) to 5 (Very true for me). It will be administered at baseline, week 8, week 12, and week 24. Completing the survey requires approximately 1 minute.
baseline, week 8, week 12, and week 24
Treatment Credibility and Expectancy
Time Frame: baseline
Treatment Credibility and Expectancy will be measured on a 6-item Credibility and Expectancy Questionnaire (CEQ) measuring treatment expectancy and credibility on a 9-point scale. It will be administered at baseline. Completing the survey requires approximately 1 minute.
baseline
Treatment Expectancy
Time Frame: baseline
Treatment Expectancy a 4-item Treatment Expectancy Scale (TES) modified to measure MORE and SG treatment expectation. It will be administered at baseline. Completing the survey requires approximately 1 minute.
baseline
Pain Medication Diary
Time Frame: baseline, week 8, 12 and 24.
Pain Medication Diaries will be administered weekly from baseline to the end of the intervention (week 8), and at weeks 12 and 24. Completing the diary requires approximately 3 minutes.
baseline, week 8, 12 and 24.
AI Adherence
Time Frame: baseline, week 8, 12 and 24.
Adherence to AI will be assessed using patient EMRs, including records of treatment interruptions, premature discontinuations, and treatment changes. Self-reported adherence will be measured using the PROMIS Medication Adherence 4-item questionnaire.
baseline, week 8, 12 and 24.
Mindfulness Daily Log
Time Frame: weekly throughout the 8-week intervention
The Mindfulness Daily Log tracks participants' engagement with at-home mindfulness practice, recording daily practice duration (minutes/day). This log will be collected weekly throughout the 8-week intervention for participants in the MORE treatment group. Completing the log requires approximately 1 minute.
weekly throughout the 8-week intervention
Journaling Daily Log
Time Frame: weekly throughout the 8-week interventio
The Journaling Daily Log tracks participants' engagement with at-home journaling practice, recording daily practice duration (minutes/day). This log will be collected weekly throughout the 8-week intervention for participants in the SG treatment group. Completing the log requires approximately 1 minute.
weekly throughout the 8-week interventio

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jun Mao, MD, MSCE, Memorial Sloan Kettering Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 6, 2024

Primary Completion (Estimated)

December 1, 2028

Study Completion (Estimated)

December 1, 2028

Study Registration Dates

First Submitted

December 6, 2024

First Submitted That Met QC Criteria

December 6, 2024

First Posted (Actual)

December 11, 2024

Study Record Updates

Last Update Posted (Actual)

April 17, 2026

Last Update Submitted That Met QC Criteria

April 16, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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