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New eye drop combo could save sight from fungal infections

NCT ID NCT06658002

Disease control Sponsor: University of California, San Francisco 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 whether adding cyclosporine A eye drops to standard natamycin treatment helps people with fungal keratitis (a serious eye infection). About 150 adults with confirmed fungal infection will receive either a low or high dose of cyclosporine A or a placebo for 4 weeks. The main goal is to see if this combination improves vision and reduces scarring.

What this could mean

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

Active substance
Cyclosporine A eye drops (0.1% or 2%) plus natamycin eye drops
What this could lead to
If it works, this could offer a better treatment for fungal eye infections, potentially improving vision and reducing scarring.
What could go wrong
This is a Phase 3 trial, but it is still testing two different doses against a placebo. The added benefit of cyclosporine A is not yet proven, and there may be side effects like eye irritation or increased risk of infection.

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 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 150 people

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

Started

Sep 2025

Expected to finish

Sep 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

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: * Inclusion is based on presenting acuity, not ulcer size. * Inclusion of 20/40 = 6/12 = 0.3 Log MAR and 20/400 = 3/60 = +1.3 Log MAR. * Smear or culture positive for fungal keratitis, any length. * Age 18 years. * Willing to participate in study. Exclusion Criteria: * Co-infection with bacterial or viral keratitis. * Corneal perforation. * Requiring therapeutic keratoplasty for fungal keratitis. * Unwilling or unable to follow up (e.g., living too far from hospital). * Presenting acuity better than 20/40 = 6/12 = 0.3 Log MAR or worse than 20/400 = 3/60 = +1.3 Log MAR. * Subjects taking cyclosporine at any concentration on presentation. * Acuity worse than 20/200 = 6/60 = +1.0 Log MAR in unaffected eye. * Pregnant women. * Penetrating Keratoplasty. * Presents with a 0-7 day history of topical steroid.

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Conditions

The condition(s) this trial relates to.

corneal ulcer fungal keratitis

As listed by the trial registrant

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

Corneal ulcer Fungal keratitis

How to take part

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

  1. The places running it

    2 sites in 2 countries. 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

  • Aravind Eye Institute

    RECRUITING

    Pondicherry, Tamil Nadu, 605 007, India

  • University of California, San Farncisco

    NOT_YET_RECRUITING

    San Francisco, California, 94143, United States

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