NCT06534957

Brief Summary

The goal of this prospective, waitlist-controlled, 1:1 randomized study is to evaluate if an online mindfulness-based stress reduction (MBSR) intervention reduces treatment-related stress levels among patients with breast cancer receiving chemotherapy. The main questions it aims to answer are:

  • Does an online MBSR intervention reduce stress levels (measured through the Perceived Stress Scale) among participants?
  • Does an online MBSR intervention reduce anxiety, depression, insomnia, fatigue, nausea, diarrhea, constipation, pain, and peripheral neuropathy (measured through the PRO-CTCAE of the National Cancer Institute) among participants? Researchers will compare the online MBSR intervention to no intervention to see if online MBSR reduces treatment-related stress. Participants will:
  • Participate in an online MBSR intervention or no intervention for 6 weeks
  • Answer the study surveys at baseline, 7 weeks, and 11 weeks of follow-up

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
200

participants targeted

Target at P50-P75 for not_applicable breast-cancer

Timeline
Completed

Started Sep 2025

Shorter than P25 for not_applicable breast-cancer

Geographic Reach
1 country

1 active site

Status
recruiting

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 30, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 2, 2024

Completed
1.1 years until next milestone

Study Start

First participant enrolled

September 2, 2025

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2026

Completed
Last Updated

September 26, 2025

Status Verified

September 1, 2025

Enrollment Period

4 months

First QC Date

July 30, 2024

Last Update Submit

September 22, 2025

Conditions

Keywords

mindfulness-based stress reductionchemotherapy-related stressbreast cancer

Outcome Measures

Primary Outcomes (1)

  • Stress

    Measured through the Perceived Stress Scale (PSS). The PSS is a self-report instrument that assesses the level of perceived stress over the past month. It consists of 10 items that are rated using a 5-point Likert scale (0: Never; 1: Almost never; 2: Sometimes; 3: Fairly often; 4: Very often). The total score is obtained by adding the scores of the 10 items, obtaining a total value between 0-40, where higher scores indicate a higher level of perceived stress. A moderate stress level is considered between 20-25 points, and a high stress level is considered when obtaining \>25 points.

    11 weeks

Study Arms (2)

Intervention group

EXPERIMENTAL

The intervention group will be assessed with the study surveys at baseline (T1), will participate in the online MBSR intervention for the next 6 weeks, and will be subsequently reassessed with the study surveys at 7 weeks (T2) and at 11 weeks (T3) of follow-up.

Other: Online mindfulness-based stress reduction

Wait-list control group

NO INTERVENTION

A wait-list control group will be used with the objective that all participants have the opportunity of receiving the online MBSR intervention and at the same time allow comparison of the effectiveness of the program with a group without intervention. Given that treatment-related stress has an important negative impact on patients' wellbeing, it is appropriate to offer the control group the possibility of receiving the intervention if its effectiveness is demonstrated. The control group will be assessed with the study surveys at baseline (T1), will not participate in the online MBSR intervention for the next 6 weeks, and will be subsequently reassessed with the study surveys at the same timepoints as the intervention group at 7 weeks (T2) and at 11 weeks (T3) of follow-up. Upon completion of recruitment and follow-up of all participants, the study will end, and the control group will be able to receive the online MBSR intervention according to their preference.

Interventions

The online MBSR intervention sessions will be available in a website created specifically for this purpose, where each pre-recorded session will be uploaded so that each patient can begin the intervention at the same time as their chemotherapy regimen. Each session will last approximately 1 hour, for a total of 6 sessions. The topics that will be covered in these sessions include: mindfulness overview, stress and suffering, emotional regulation, meditation, management of stressful situations, self-compassion and acceptance. Participants will watch 1 session per week following the order that will be indicated on the website; patients will be encouraged to watch the sessions during their chemotherapy infusions. During these sessions, patients will be instructed in mindfulness practice and will perform targeted exercises to promote complete consciousness, including mindful body awareness (body scan), gentle yoga exercises, and meditation.

Intervention group

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Female sex
  • Age ≥18 years
  • Diagnosis of non-metastatic breast cancer
  • Plan to start neoadjuvant or adjuvant chemotherapy in \<4 weeks
  • Internet access at home or in their mobile phone
  • Availability to participate in the online MBSR intervention for 6 weeks
  • Availability to answer the study surveys
  • Provision of signed informed consent

You may not qualify if:

  • Disease recurrence
  • Current meditation or mindfulness practice
  • Inability to read or write

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Zambrano Hellion

San Pedro Garza García, Nuevo León, 66278, Mexico

RECRUITING

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Given the nature of the intervention, the study will be open and participants will know which group they were randomized to. However, the study will be blinded to the statistician in order to reduce the risk of introducing bias when interpreting the data.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

July 30, 2024

First Posted

August 2, 2024

Study Start

September 2, 2025

Primary Completion

January 1, 2026

Study Completion

April 1, 2026

Last Updated

September 26, 2025

Record last verified: 2025-09

Locations