NCT07191288

Brief Summary

A Four-Arm RCT, testing the acute effects of a Virtual Reality (VR)- based slow-paced breathing intervention on subjective and physiological markers of stress. The investigator hypothesize that combining slow breathing with immersive, mystical-type VR elements will result in the greatest stress reduction.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
2mo left

Started Mar 2026

Shorter than P25 for not_applicable

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

Study Progress55%
Mar 2026Jun 2026

First Submitted

Initial submission to the registry

September 17, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 24, 2025

Completed
5 months until next milestone

Study Start

First participant enrolled

March 5, 2026

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2026

Last Updated

April 28, 2026

Status Verified

April 1, 2026

Enrollment Period

4 months

First QC Date

September 17, 2025

Last Update Submit

April 27, 2026

Conditions

Keywords

Virtual RealityStressBreathingBiofeedback

Outcome Measures

Primary Outcomes (1)

  • Subjective stress

    Subjective stress measured using visual analogue scales (VAS) on a computer

    Assessed before and after the 10-minute interventions.

Secondary Outcomes (9)

  • Mood

    Assessed before and after the 10-minute interventions.

  • Anxiety

    Assessed before and after the 10-minute interventions.

  • Relaxation

    Assessed before and after the 10-minute interventions.

  • Electrodermal Activity

    Assessed during the 10-minute interventions.

  • Respiration

    Assessed during the 10-minute interventions.

  • +4 more secondary outcomes

Study Arms (4)

VR-Breathing+Mystical

EXPERIMENTAL

Participants engage in guided slow-paced breathing using VR that provides mystical-type visual feedback.

Device: VR (VR-Breathing+Mystical)

VR-Mystical

EXPERIMENTAL

Participants passively view the same nature scene as in the first condition (VR-Breathing+Mystical), but without guided breathing instructions (i.e., they breathe naturally).

Device: VR (VR-Mystical)

Non-VR-Breathing

EXPERIMENTAL

Participants follow a slow-paced breathing pattern guided by a simple visual cue (expanding/contracting circle) on a standard computer screen.

Device: Computer (Non-VR-Breathing)

VR-Control

SHAM COMPARATOR

To control for the effects of experiencing VR, participants will watch a neutral documentary in a video player implemented in VR.

Drug: VR (VR-Control)

Interventions

Users will experience the gradual unveiling of a beautiful natural landscape as the fog lifts, and eventually, the scene slows down similar to the VR Breathing+Mystical condition. However, this application does not provide any biofeedback or breathing instructions. Users are invited to passively observe the unfolding experience, immersing themselves in the environment for 10 minutes. Relaxing music accompanies the scene. This condition relies solely on the immersive and aesthetic qualities of the virtual environment to potentially induce relaxation.

VR-Mystical

In this conventional breathing intervention, participants will be instructed to follow a slow-paced breathing pattern guided by a simple visual cue (an expanding and contracting circle) displayed on a computer screen for 10 minutes. This condition is designed to guide slow-paced breathing without incorporating any rewarding elements.

Non-VR-Breathing

In the control condition, participants will watch a neutral documentary for 10 minutes in VR. This condition is used to control for the effects of the immersive VR experience. It does not include any components related to guided breathing or mystical-type content, or any form of rewarding elements.

VR-Control

The VR-based slow-paced breathing application is designed to provide rewarding biofeedback for a specific breathing pattern characterized by prolonged exhales. As users extend their exhales, a veil of fog gradually lifts, introducing a mystical type experience. Over time, users are rewarded with a full 360-degree panoramic view of the beautiful nature scene, accompanied by relaxing music. After approximately 5 minutes of prolonged exhales, the nature scene responds to the user's breathing by slowing down, with falling snowflakes moving more slowly, further enhancing the mystical atmosphere. This intervention was designed to be visually captivating, mystically evocative, and emotionally engaging. Duration: 10 minutes.

VR-Breathing+Mystical

Eligibility Criteria

Age18 Years - 35 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • \> 60 points on the PSQ-30 out of a maximum 120-point scale in the screening
  • Healthy
  • Aged between 18-35
  • Fluent in German

You may not qualify if:

  • A current diagnosis of psychiatric disorders (self-reported)
  • Chronic medication use (except oral contraceptives)
  • Parallel participation in another medical or psychological study
  • Suicidal tendencies (PHQ-9 item 9 \> 0)3
  • PHQ-9 score ≥ 10
  • A visual impairment not corrected by glasses or contact lenses

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Basel, Division of Cognitive Neuroscience

Basel, Canton of Basel-City, 4055, Switzerland

RECRUITING

MeSH Terms

Conditions

HypoventilationRespiratory Aspiration

Condition Hierarchy (Ancestors)

Respiratory InsufficiencyRespiration DisordersRespiratory Tract DiseasesSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsPathologic Processes

Study Officials

  • Dominique de Quervain, Prof. MD

    University of Basel, Research Platform Molecular and Cognitive Neuroscience

    STUDY CHAIR

Central Study Contacts

Fabian Mueller, Msc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Director Division Cognitive Neuroscience

Study Record Dates

First Submitted

September 17, 2025

First Posted

September 24, 2025

Study Start

March 5, 2026

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

June 30, 2026

Last Updated

April 28, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

All IPD (de-identified) that underline results in a publication will be shared upon reasonable request.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
IPD will be available after publication, study protocol (including statistical analysis plan) will be made available before start of the study.
Access Criteria
All IPD (de-identified) that underline results in a publication will be shared upon reasonable request for scientific purposes. A reasonable request consists of a short description of the scientific purpose. Request will be reviewed by the team of the principal investigator.

Locations