Hyperbaric Oxygen Therapy for Optic Neuropathies
HBOT
A Randomized, Sham Controlled, Masked Phase II Study to Evaluate the Neuroprotective Effect of Hyperbaric Oxygen Therapy on Optic Neuropathy
1 other identifier
interventional
60
1 country
1
Brief Summary
The purpose of the study is to evaluate the neuroprotective efficacy of hyperbaric oxygen for the treatment in patients with optic neuropathy.
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 Nov 2022
Longer than P75 for not_applicable
1 active site
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 Start
First participant enrolled
November 1, 2022
CompletedFirst Submitted
Initial submission to the registry
November 7, 2023
CompletedFirst Posted
Study publicly available on registry
November 13, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2027
May 25, 2025
May 1, 2025
4.6 years
November 7, 2023
May 20, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Change in Visual Field- Mean Deviation
Humphrey visual field testing with standard MD output
Baseline through 6 months
Change in Visual Field- Visual Field Index
Humphrey visual field testing with standard VFI output
Baseline through 6 months
Secondary Outcomes (2)
Change in Average Thickness Ganglion Cell Complex on Optical Coherence Tomography
Baseline through 6 months
Change in Average Thickness Retinal Nerve Fiber Layer on Optical Coherence Tomography
Baseline through 6 months
Study Arms (3)
Open Label
EXPERIMENTALParticipants will get Hyperbaric oxygen therapy for 20 days to determine best methods for full trial.
Active Hyperbaric Oxygen
EXPERIMENTALParticipants will get Hyperbaric oxygen therapy for 20 days.
Sham Hyperbaric Oxygen
PLACEBO COMPARATORParticipants will get a Sham Hyperbaric oxygen therapy for 20 days
Interventions
Participant will undergo 60 minutes of Hyperbaric oxygen at 1.5ATA while breathing 100% oxygen
Participant will undergo 60 minutes of Sham Hyperbaric Oxygen at atmospheric pressure while breathing room air.
Eligibility Criteria
You may qualify if:
- Patients must meet all of the following criteria to join the study (all eligibility criteria must be met at the screening and baseline visits unless otherwise noted):
- Participant must be at least 18.
- Participant must has the ability to comply with the requirements of the study and complete the schedule of events (SOE).
- Participant's with clinical evidence of optic neuropathy.
- Participant must understand and sign the informed consent. If the participant's vision is impaired to the point where he/she cannot read the informed consent document, the document will be read to the participant in its entirety.
You may not qualify if:
- Participant is unable to comply with study procedures or follow-up visits.
- Participant has evidence of corneal opacification or lack of optical clarity.
- Participant is currently participating in or has within the last 3 months participated in any other clinical trial of a drug by ocular (if in the study eye) or systemic administration.
- Participant is pregnant or lactating.
- Participant has, in the opinion of the investigator, any physical or mental condition that would increase the risk of participation in the study or may interfere with the study procedures, evaluations and outcome assessments.
- Children and comatose patients.
- Participant abusing drugs or alcohol.
- Prior treatment with hyperbaric oxygen within the last 6 months.
- Participant with claustrophobia or that cannot decompress properly.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Byers Eye Institute
Palo Alto, California, 94303, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Jeffrey L Goldberg, MD PhD
Stanford University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Ophthalmology
Study Record Dates
First Submitted
November 7, 2023
First Posted
November 13, 2023
Study Start
November 1, 2022
Primary Completion (Estimated)
June 1, 2027
Study Completion (Estimated)
December 1, 2027
Last Updated
May 25, 2025
Record last verified: 2025-05
Data Sharing
- IPD Sharing
- Will not share