NCT07161570

Brief Summary

Seasonal Affective Disorder (SAD) is commonly treated with bright light therapy. Virtual reality (VR) is an immersive computer-generated environment, which has been used to treat mental health difficulties, such as depression, social anxiety and stress. This study aims to compare the use of VR with bright light therapy in treating SAD. Participants will be randomly allocated to either the VR condition or the light box condition and instructed to use the respective device every day for 14 days.

Trial Health

65
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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
8mo left

Started Oct 2025

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress45%
Oct 2025Dec 2026

First Submitted

Initial submission to the registry

August 28, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

September 8, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

October 27, 2025

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2026

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

September 8, 2025

Status Verified

September 1, 2025

Enrollment Period

5 months

First QC Date

August 28, 2025

Last Update Submit

September 4, 2025

Conditions

Keywords

SADVR

Outcome Measures

Primary Outcomes (1)

  • Change in levels of mood and depressive symptoms

    Assessed by standardised psychological scales (Patient Health Questionnaire-9 (total score ranges from 0 to 27 with higher scores indication depression severity) and Positive and Negative Affect Schedule-Short Form (scores range from 10 to 50, with higher scores on the Positive Affect scale representing higher levels of positive affect, and higher scores on the Negative Affect scale representing higher levels of negative affect) and Visual Analogue Scales (0 to 100% with higher scores indicating better mood).

    From baseline (day 1 to 7) to follow-up (day 28) of treatment

Secondary Outcomes (1)

  • Participant engagement, experience and satisfaction of the intervention

    From baseline (day 1 to 7) to end of follow-up (day 28) treatment

Study Arms (2)

Virtual reality (VR) intervention

EXPERIMENTAL

10-min VR intervention

Device: Virtual Reality (VR) Intervention

Light Box (LB) intervention

ACTIVE COMPARATOR

30-min LB intervention

Device: Light Box (LB) intervention

Interventions

10-min VR intervention, once a day, everyday for 14 days.

Virtual reality (VR) intervention

30-min LB intervention once a day, everyday for 14 days.

Light Box (LB) intervention

Eligibility Criteria

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

You may qualify if:

  • fluent in English and capable of giving informed consent
  • or older
  • resident in the United Kingdom and
  • able to access internet and attend Anglia Ruskin University's Cambridge campus
  • must self-identify or have been diagnosed with SAD, with moderate to severe symptoms

You may not qualify if:

  • declared suffering from epilepsy (due to the risk that seizures may be triggered by VR use).
  • currently using photosensitizing medications or have significant retinal pathology, due to potentially detrimental effects of light box use. For other ophthalmologic conditions, consultation with an ophthalmologist will be recommended.
  • currently receiving active treatment for SAD, including antidepressant medication (less than 3 months), bright light treatment, or psychotherapy (e.g. CBT for seasonal affective disorder).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Seasonal Affective Disorder

Interventions

Methods

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Investigative Techniques

Study Officials

  • Debora Vasconcelos e Sa, PhD

    Anglia Ruskin University

    PRINCIPAL INVESTIGATOR
  • Jane Scott, PhD

    Anglia Ruskin University

    STUDY DIRECTOR

Central Study Contacts

Debora Vasconcelos e Sa, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 28, 2025

First Posted

September 8, 2025

Study Start

October 27, 2025

Primary Completion

March 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

September 8, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will share

This study will be written up to be published in peer-reviewed journals and anonymised data will be submitted to an online data repository (e.g., Figshare; Open Science Foundation).

Shared Documents
STUDY PROTOCOL, SAP, ANALYTIC CODE
Time Frame
Upon study completion December 2026.
Access Criteria
Findings from this study will be submitted for publication in peer-reviewed journals and anonymised findings will be included in an online data repository (e.g., Figshare; Open Science Foundation).