The Effects of 3% Trehalose Ophthalmic Solution on Corneal Epithelial Barrier Function

Q: Who can participate in NCT06655441?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

Q: How do I contact the trial site for NCT06655441?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Q: Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Q: Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

The Effects of 3% Trehalose Ophthalmic Solution on Corneal Epithelial Barrier Function (NCT06655441) is a Phase 4 interventional studying Dry Eye Disease (DED), sponsored by Southern California College of Optometry at Marshall B. Ketchum University. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

About This Trial

The purpose of this research study is to evaluate the effects of trehalose, an ingredient found in commercially available artificial tears, on the corneal barrier function. The investigators will assess corneal dryness and measure the relative corneal epithelial "barrier" function (the degree to which the cornea can prevent penetration of sodium fluorescein dye into the eye) after using eye drops that contain 3% trehalose for one month.

What Stage of Research Is This?

Phase 4 studies happen after a treatment has been approved by the FDA. They monitor long-term safety, real-world effectiveness, and any rare side effects that only emerge in larger populations over longer periods. Phase 4 results sometimes lead to label changes, additional warnings, or — rarely — withdrawal of approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

With a target enrollment of 30 participants, this is a small study — typical of early-phase research, rare-disease trials, or pilot studies designed to generate preliminary signal before a larger study is launched.

Who May Be Eligible (Plain English)

Who May Qualify: - Adult subjects, \> age 18 years, with moderate-to-severe dry eye, defined as fitting criteria for dry eye stages 3 or 4 of the MGD Workshop Management and Treatment subcommittee report. - Subjects must have normal eyelid position and closure. - For enrollment as aqueous tear deficiency, subjects must have a Schirmer I result of \< 5.0 mm wetting in 5 minutes without anesthesia. Who Should NOT Join This Trial: - History or evidence of ocular or intraocular surgery in either eye within the past twelve months. LASIK and other kerato-refractive procedure patients can qualify if the most recent surgery or enhancement was 12 or more months prior. - History or evidence of serious ocular trauma in either eye within the past six months. - History of hypersensitivity to any component of the study medications. - History or evidence of epithelial herpes simplex keratitis (dendritic keratitis); vaccinia, active or recent varicella, viral disease of the cornea and/or conjunctiva; chronic bacterial disease of the cornea and/or conjunctiva; mycobacterial infection of the eye; and/or fungal disease of the eye. - History or evidence of active ocular allergy. - Females who are pregnant, nursing, or planning a pregnancy during the study. - Evidence of greater than mild eyelid deformity (e.g., ectropion, entropion, ptosis). - Use of concomitant topical ocular medications during the study duration. - Individuals using systemic steroids, immunosuppressive agents and/or anti-cholinergic (e.g. cold and allergy medications, tricyclic antidepressants) for treatment of autoimmune connective tissue disease may not be enrolled in the study if they have not been on a stable dosing regimen for a minimum of 30 days prior to the visit. - Individuals with uncontrolled diabetes or history or evidence of peripheral neuropathy. - Active intraocular inflammatory conditions such as iritis. ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language

Inclusion Criteria: * Adult subjects, \> age 18 years, with moderate-to-severe dry eye, defined as fitting criteria for dry eye stages 3 or 4 of the MGD Workshop Management and Treatment subcommittee report. * Subjects must have normal eyelid position and closure. * For enrollment as aqueous tear deficiency, subjects must have a Schirmer I result of \< 5.0 mm wetting in 5 minutes without anesthesia. Exclusion Criteria: * History or evidence of ocular or intraocular surgery in either eye within the past twelve months. LASIK and other kerato-refractive procedure patients can qualify if the most recent surgery or enhancement was 12 or more months prior. * History or evidence of serious ocular trauma in either eye within the past six months. * History of hypersensitivity to any component of the study medications. * History or evidence of epithelial herpes simplex keratitis (dendritic keratitis); vaccinia, active or recent varicella, viral disease of the cornea and/or conjunctiva; chronic bacterial disease of the cornea and/or conjunctiva; mycobacterial infection of the eye; and/or fungal disease of the eye. * History or evidence of active ocular allergy. * Females who are pregnant, nursing, or planning a pregnancy during the study. * Evidence of greater than mild eyelid deformity (e.g., ectropion, entropion, ptosis). * Use of concomitant topical ocular medications during the study duration. * Individuals using systemic steroids, immunosuppressive agents and/or anti-cholinergic (e.g. cold and allergy medications, tricyclic antidepressants) for treatment of autoimmune connective tissue disease may not be enrolled in the study if they have not been on a stable dosing regimen for a minimum of 30 days prior to the visit. * Individuals with uncontrolled diabetes or history or evidence of peripheral neuropathy. * Active intraocular inflammatory conditions such as iritis. * Individuals wearing rigid gas permeable or scleral contact lenses within the previous six months of enrollment. Subjects can have worn soft lenses, but not within one month prior to enrollment. * Individuals using punctual plugs inserted within 30 days of study start.

Treatments Being Tested

DRUG

3% trehalose

ophthalmic solution with 3% trehalose in sterile saline in multi dose preservative free bottles

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Marshall B. Ketchum University

Fullerton, California, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06655441), the sponsor (Southern California College of Optometry at Marshall B. Ketchum University), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06655441 clinical trial studying?

Who can participate in NCT06655441?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06655441?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06655441. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06655441. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-06-07 · Data from ClinicalTrials.gov.