Novel Couple-Based Mindfulness Intervention for Metastatic Colorectal Cancer
Feasibility and Acceptability of a Novel Couple-Based Mindfulness Intervention for Metastatic Colorectal Cancer: A Pilot Randomized Controlled Trial
2 other identifiers
interventional
90
1 country
1
Brief Summary
The overall objective of this study is to learn whether a newly developed couple-based mindfulness program (Mindful PaCT) is practical to complete (feasible), helpful and well-received (acceptable), and relevant for patients with metastatic colorectal cancer (mCRC) and their partners.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable colorectal-cancer
Started Dec 2026
Typical duration for not_applicable colorectal-cancer
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 22, 2026
CompletedFirst Posted
Study publicly available on registry
August 12, 2026
CompletedStudy Start
First participant enrolled
December 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2030
Study Completion
Last participant's last visit for all outcomes
December 1, 2030
August 12, 2026
August 1, 2026
4 years
July 22, 2026
August 6, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Feasibility of Intervention through Study Accrual
Feasibility will be measured through study accrual, retention/attrition, and session completion rates, based on similar couple-based behavioral interventions in advanced cancer. Accrual feasibility will be indicated by: Recruitment and accrual efficiency, defined as enrolling \>50% of eligible approached couples (i.e., 45 couples after approaching fewer than 90 couples).
From enrollment through post-intervention assessment at approximately 8 weeks
Feasibility of Intervention through Intervention Retention Rates
Feasibility will be measured through study accrual, retention/attrition, and session completion rates, based on similar couple-based behavioral interventions in advanced cancer. Retention feasibility will be indicated by: Intervention retention rate of \> 70% Mindful PaCT couples (i.e., complete assessments at both pre-and post-intervention timepoints).
From enrollment through post-intervention assessment at approximately 8 weeks
Feasibility of Intervention through Intervention Completion Rates
Feasibility will be measured through study accrual, retention/attrition, and session completion rates, based on similar couple-based behavioral interventions in advanced cancer. Session completion feasibility will be indicated by: Intervention completion rate, defined by attendance of all 4 Mindful PaCT sessions, in \> 50% of couples.
From enrollment through post-intervention assessment at approximately 8 weeks
Secondary Outcomes (1)
Participant Satisfaction Score of the PaCT Program
At post-intervention assessment at approximately 8 weeks
Study Arms (2)
Mindful PaCT
EXPERIMENTALPatient-partner dyads assigned to this arm receive Mindful PaCT, a couple-based mindfulness program delivered through four weekly, 60- to 75-minute sessions via secure videoconferencing. Sessions are facilitated by a trained interventionist. Couples also receive a program workbook and access to supplemental audio and video mindfulness practices for use between sessions.
Wellness PACT
PLACEBO COMPARATORPatient-partner dyads assigned to this arm receive Wellness PaCT, a couple-based educational program delivered through four weekly, 60- to 75-minute sessions via secure videoconferencing. Sessions are facilitated by a trained interventionist and address general wellness, sleep and fatigue, diet and nutrition, and exercise and physical activity. Couples also receive a program workbook and supplemental educational resources for use between sessions.
Interventions
Mindful PaCT is a manualized, couple-based mindfulness intervention designed to reduce distress and strengthen coping among patients with metastatic colorectal cancer and their partners. The intervention includes four weekly, 60- to 75-minute sessions delivered to each patient-partner dyad via secure videoconferencing by a trained interventionist. Sessions address four core mindfulness competencies: awareness, acceptance, compassion, and connection. Intervention content includes mindfulness-based education, guided experiential exercises, and skill-building activities designed to support individual and relational coping and adjustment in the context of advanced cancer. Couples receive a workbook containing session materials and access to supplemental audio and video recordings of guided mindfulness practices to support between-session practice and continued skill development.
Wellness PaCT is a manualized, couple-based educational intervention designed as an active, attention-matched control condition for patients with metastatic colorectal cancer and their partners. The intervention includes four weekly, 60- to 75-minute sessions delivered to each patient-partner dyad via secure videoconferencing by a trained interventionist. Each session focuses on a wellness topic relevant to coping with metastatic colorectal cancer: general wellness, sleep and fatigue, diet and nutrition, and exercise and physical activity. Intervention content includes health education and structured activities intended to support healthy lifestyle behaviors in the context of advanced cancer. Couples receive a workbook containing session materials and access to supplemental educational resources to support continued learning between sessions.
Eligibility Criteria
You may qualify if:
- Provision to sign and date the consent form.
- Stated willingness to comply with all study procedures and be available for the duration of the study.
- Be aged \> 18 years to 85.
- Fluent in English language. All study materials, including the informed consent form, participant workbooks, and questionnaires, are currently available only in English. Participation requires the ability to independently read and engage with written study materials (including the participant workbook), which are integral to the intervention session content and home practices. Therefore, individuals who are unable to read study materials in English are not eligible to participate. At this time, the intervention has not been translated or validated in other languages, therefore participation is limited to individuals who can read, speak, and understand English to ensure that participants are able to fully engage with study activities.
- Be a person (i.e., patient) diagnosed with metastatic colorectal cancer (mCRC) or a partner (e.g., spouse) of someone diagnosed with mCRC.
- Indicates a score \>0 on the Distress Thermometer
- Has access to computer/internet through with video-conferencing (phone, laptop, tablet, desktop computer)
- Additional eligibility criteria include:
- Has a current diagnosis of metastatic (Stage IV, recurrent) colorectal cancer
- Has an ECOG status \<2 or otherwise deemed appropriate for study participation by a clinician
- Is in a committed relationship with a romantic partner for \>6 months. Monogamy is not required for eligibility; however, in cases of polyamorous relationships, the patient will designate a primary partner for participation in the study.
- Has been in a committed relationship \>6 months with a patient who meets the above eligibility criteria
- Eligibility for relationship status will be self-reported by participants during recruitment.
You may not qualify if:
- One or both members of the couple has an active or poorly controlled serious mental illness (e.g., psychotic disorder), cognitive impairment (e.g., dementia), or medical condition (e.g., significant impaired sight/hearing) that would compromise participation.
- The couple is currently in active couples (e.g., marital) therapy together.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Colorado, Denverlead
- National Cancer Institute (NCI)collaborator
Study Sites (1)
University of Colorado Hospital
Aurora, Colorado, 80045, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Lauren Zimmaro, PhD
University of Colorado, Denver
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 22, 2026
First Posted
August 12, 2026
Study Start (Estimated)
December 1, 2026
Primary Completion (Estimated)
December 1, 2030
Study Completion (Estimated)
December 1, 2030
Last Updated
August 12, 2026
Record last verified: 2026-08