NCT07785245

Brief Summary

This pilot randomized controlled trial (N=60) investigates the efficacy of a brief, combined Virtual Reality (VR) and mindfulness meditation intervention and a VR nature intervention for breast cancer patients in the immediate pre-surgical waiting period.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

January 31, 2024

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 30, 2025

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

August 13, 2026

Completed
12 days until next milestone

First Posted

Study publicly available on registry

August 25, 2026

Completed
Last Updated

August 25, 2026

Status Verified

August 1, 2026

Enrollment Period

1.2 years

First QC Date

August 13, 2026

Last Update Submit

August 22, 2026

Conditions

Keywords

Pre-surgical DistressBreast CancerVirtual realityMindfulness

Outcome Measures

Primary Outcomes (2)

  • Number of Participants Who Complete the VR Intervention (Feasibility)

    Feasibility is evaluated by the drop-off/discontinuation rate. The metric for success is a drop-off rate threshold of less than 10%.

    Day 1 -Immediately after the intervention (approximately 8 minutes)

  • Acceptability Assessed by an Adapted Simulator Sickness Questionnaire (SSQ) Score

    Participant acceptability and tolerability are evaluated by measuring overall cybersickness. Participants rate four specific symptoms (nausea, dizziness, headache, and blurred vision) adapted from the Simulator Sickness Questionnaire (SSQ) on a visual analogue scale from 0-100. The scores for these four items are averaged to calculate a single overall mean score. The aggregated score ranges from 0 to 100, where a higher score indicates worse cybersickness. An aggregated score of \< 25 is the pre-defined threshold for clinical acceptability.

    Immediately post-intervention (approximately 8 minutes from VR intervention start)

Secondary Outcomes (8)

  • Change in Pre-operative State Anxiety

    Baseline (pre-intervention) to immediately post-intervention (approximately 8 minutes).

  • Change in Surgery-Specific Fear

    Baseline (pre-intervention) to immediately post-intervention (approximately 8 minutes).

  • Change in Calmness Assessed by Visual Analogue Scale (VAS)

    Baseline (pre-intervention) to immediately post-intervention (approximately 8 minutes).

  • Change in Resting Heart Rate

    Baseline (pre-intervention) to immediately post-intervention (approximately 8 minutes).

  • Change in State Anxiety Assessed by the short Brazilian State Trait Anxiety Inventory (STAI-S)

    Baseline to immediately post-intervention (approximately 8 minutes).

  • +3 more secondary outcomes

Other Outcomes (1)

  • Patient Sentiment Score Assessed by Word-Level Semantic Projection Analysis (Exploratory)

    Post-Operative Day 1 - During post-operative surgical recovery.

Study Arms (3)

VR+meditation

EXPERIMENTAL

Participants experience an 8-minute guided breath meditation delivered via a Pico Neo 3 Head-Mounted Display using a customized study version of the Flow application set in an immersive virtual beach environment. Instruction audio is provided in Portuguese.

Behavioral: Immersive Virtual Reality Mindfulness Meditation

Nature VR only

ACTIVE COMPARATOR

Participants experience the identical 8-minute immersive virtual beach environment using the same hardware and application, but without any guided meditation or audio instruction, serving as a standard environmental VR distraction.

Behavioral: Immersive Nature Virtual Reality

Care as usual

NO INTERVENTION

Participants receive standard pre-operative surgical care in the holding room environment for an equivalent 8-minute period without VR exposure.

Interventions

An 8-minute guided breath meditation delivered via a Pico Neo 3 Head-Mounted Display using the Flow® application, set in an immersive virtual beach environment with custom Portuguese audio instruction.

Also known as: VR+Med
VR+meditation

An 8-minute immersive virtual beach environment using the Flow® application on a Pico Neo 3 Head-Mounted Display, provided without any guided meditation or audio instruction.

Also known as: VR only
Nature VR only

Eligibility Criteria

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

You may qualify if:

  • Female patients aged 18 years or older
  • Capable of providing written informed consent
  • Scheduled for elective breast cancer surgery requiring general anaesthesia
  • Possessing sufficient vision and hearing to engage with the VR experience

You may not qualify if:

  • Severe visual or auditory impairments
  • Cognitive deficits that would preclude engagement with the VR hardware
  • A history of motion sickness or known contraindications to VR exposure

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Champalimaud Foundation - Breast Unit

Lisbon, Lisbon District, 1400-038, Portugal

Location

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
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 13, 2026

First Posted

August 25, 2026

Study Start

January 31, 2024

Primary Completion

March 30, 2025

Study Completion

March 30, 2025

Last Updated

August 25, 2026

Record last verified: 2026-08

Data Sharing

IPD Sharing
Will share

De-identified individual participant data (IPD) underlying the results reported in published manuscript(s), along with the custom computational semantic analysis code, will be made available upon reasonable request to support reproducibility. Access will be granted to researchers who provide a methodologically sound proposal. Requests should be directed to the corresponding author and are subject to data sharing agreements and final approval by the Champalimaud Foundation ethics board

Shared Documents
STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
Time Frame
Data will be available beginning 6 months and ending 36 months following article publication.
Access Criteria
Available to researchers who provide a methodologically sound proposal to achieve aims in the approved proposal.

Locations