MBCT-vision VSS RCT
MBCT-vision to Treat Visual Snow Syndrome: a Randomized Controlled Trial
1 other identifier
interventional
60
0 countries
N/A
Brief Summary
Visual Snow Syndrome (VSS) is a neurological condition with bran network dysregulation involving the visual pathway. This is a research trial comparing the effect of an 8-week mindfulness-based intervention via a group-learning course, the MBCT-vision programme, to treat Visual Snow Syndrome, compared to people on a standard care (wait-list control). Participants will be randomly allocated to either the Treatment group (MBCT-vision), or the Control group (wait-list control). After a waiting period, people allocated to the Control group will also be offered the MBCT-vision treatment. The primary outcome is to compare the severity of the visual symptoms on a 0 to 10 scale between the two groups.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jan 2024
Typical duration for not_applicable
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
First Submitted
Initial submission to the registry
August 25, 2023
CompletedFirst Posted
Study publicly available on registry
August 30, 2023
CompletedStudy Start
First participant enrolled
January 1, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2026
ExpectedAugust 31, 2023
August 1, 2023
1.5 years
August 25, 2023
August 30, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Severity of visual symptoms of Visual Snow Syndrome on a 0-10 VAS
Severity of VSS visual symptoms
5 months
Secondary Outcomes (4)
Psychological wellbeing on the World Health Organisation (WHO) wellbeing index scores
5 months
Psychological distress on the Clinical Outcomes in Routine Evaluation (CORE-10) scores
5-months
Impact of Visual Snow Syndrome symptoms on daily life on 0-10 scale
5-months
Work and Social Adjustment Scale
5-months
Study Arms (2)
Treatment
EXPERIMENTAL8-week online group learning course of the MBCT-vision programme
Control
NO INTERVENTIONwait-list control (standard care, no research intervention)
Interventions
8-week mindfulness group learning course, using Mindfulness Based Cognitive Therapy customised for visual symptoms (MBCT-vision). Participants meet once weekly only, with daily home practice between sessions.
Eligibility Criteria
You may qualify if:
- People with VSS according to the ICHD-3 criteria; previously diagnosed by a Neurologist, Ophthalmologist or Neuro-Ophthalmologist
You may not qualify if:
- Patients with co-morbid conditions affecting vision
- Patients with a current severe depressive or psychotic episode as determined by the psychologist
- Patients with severe difficulties in emotional regulation as determined by the psychologist
- Patients unable to provide informed consent for participation
- Patients with insufficient understanding of spoken English (due to need to participate in group discussions)
- Patients who have previously completed MBCT or similar mindfulness interventions
- Persons aged \<16 or \>80 years
- Family or household member of a similar age (+/- 8years) to a participant with VSS recruited into the MBCT-vision VSS RCT study
- Person with no symptoms of VSS
- Person who self-declares as fit and well with no current medical conditions including anxiety or migraine
- Person unable to provide informed consent
- Person with other co-morbid medical or psychological conditions
- Person aged \<16 or \>80years
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Study Officials
- PRINCIPAL INVESTIGATOR
Sui Wong, MD
Guy's and St Thomas' NHS Foundation Trust
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- Statistician performing the analysis will be masked. It is not possible to mask the participant nor the investigator due to the nature of the intervention (group learning programme on mindfulness)
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 25, 2023
First Posted
August 30, 2023
Study Start
January 1, 2024
Primary Completion
July 1, 2025
Study Completion (Estimated)
December 1, 2026
Last Updated
August 31, 2023
Record last verified: 2023-08
Data Sharing
- IPD Sharing
- Will not share
anonymised numeric data to be shared upon reasonable request from qualified researcher after review by Eye Research Governance and data transfer agreement