NCT06128720

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

77
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
19mo left

Started Nov 2022

Longer than P75 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

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Study Timeline

Key milestones and dates

Study Progress69%
Nov 2022Dec 2027

Study Start

First participant enrolled

November 1, 2022

Completed
1 year until next milestone

First Submitted

Initial submission to the registry

November 7, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

November 13, 2023

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

May 25, 2025

Status Verified

May 1, 2025

Enrollment Period

4.6 years

First QC Date

November 7, 2023

Last Update Submit

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

EXPERIMENTAL

Participants will get Hyperbaric oxygen therapy for 20 days to determine best methods for full trial.

Device: Hyperbaric Oxygen

Active Hyperbaric Oxygen

EXPERIMENTAL

Participants will get Hyperbaric oxygen therapy for 20 days.

Device: Hyperbaric Oxygen

Sham Hyperbaric Oxygen

PLACEBO COMPARATOR

Participants will get a Sham Hyperbaric oxygen therapy for 20 days

Device: Sham Hyperbaric Oxygen

Interventions

Participant will undergo 60 minutes of Hyperbaric oxygen at 1.5ATA while breathing 100% oxygen

Active Hyperbaric OxygenOpen Label

Participant will undergo 60 minutes of Sham Hyperbaric Oxygen at atmospheric pressure while breathing room air.

Sham Hyperbaric Oxygen

Eligibility Criteria

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

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

RECRUITING

MeSH Terms

Conditions

Optic Nerve DiseasesGlaucoma

Interventions

Hyperbaric Oxygenation

Condition Hierarchy (Ancestors)

Cranial Nerve DiseasesNervous System DiseasesEye DiseasesOcular Hypertension

Intervention Hierarchy (Ancestors)

Oxygen Inhalation TherapyRespiratory TherapyTherapeutics

Study Officials

  • Jeffrey L Goldberg, MD PhD

    Stanford University

    STUDY CHAIR

Central Study Contacts

Zac Wennberg Smith

CONTACT

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

Locations