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Gene therapy aims to bring back light sensitivity in fading eyes

NCT ID NCT04278131

Disease control Sponsor: Bionic Sight LLC Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a gene therapy called BS01 for people with retinitis pigmentosa, an inherited eye disease that causes gradual vision loss. The therapy delivers a light-sensitive protein to cells in the retina, aiming to help them detect light again. Twenty participants with severe vision loss will be monitored for safety and any improvement in light, motion, or shape detection.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
BS01 (a gene therapy that makes eye cells sensitive to light)
What this could lead to
If it works, this could help people with retinitis pigmentosa regain some ability to detect light, motion, and shapes.
What could go wrong
This is an early-phase trial with only 20 people, so results may not apply to everyone. Gene therapies can cause inflammation or other side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 20 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2020

Expected to finish

Dec 2029

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Confirmed diagnosis of retinitis pigmentosa * At least one eye with vision no better than 20/160 visual acuity on the EDTRS scale or, for patients with peripheral vision loss, a visual field no greater than 30°. Exclusion Criteria: * Prior receipt of any AAV gene therapy product * Large amplitude nystagmus

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Conditions

The condition(s) this trial relates to.

retinitis pigmentosa

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Retinitis pigmentosa

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • New Jersey Retina

    RECRUITING

    Teaneck, New Jersey, 07666, United States

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