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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 3INTERVENTIONAL

Efficacy of Citicoline Eye Drops 2% on Visual Field Preservation in Patients With Open Angle Glaucoma

A Phase III Multicenter, Double-blind, Randomized, Placebo-controlled, Parallel-group Trial of the Efficacy of Citicoline Eye Drops 2% on Visual Field Preservation in Patients With Open Angle Glaucoma

Efficacy of Citicoline Eye Drops 2% on Visual Field Preservation in Patients With Open Angle Glaucoma (NCT05710198) is a Phase 3 interventional studying Glaucoma, Open-Angle, sponsored by Omikron Italia S.r.l.. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

To evaluate the efficacy of citicoline eye drops 2% in reducing visual field deterioration in patients with progressing OAG treated according to best clinical practice. Secondary objectives are assessing the effect of citicoline eye drops 2% on changes in structural parameters measured by Spectral Domain Optical Coherence Tomography (SD-OCT) and evaluating the safety of citicoline eye drops 2%

What Stage of Research Is This?

Phase 3 trials confirm efficacy and safety in large patient groups (often 300–3,000+) and form the evidence base for an FDA approval submission. For Glaucoma, Open-Angle, Phase 3 studies typically randomize participants between the investigational treatment and either a placebo or current standard of care. A successful Phase 3 result is the threshold most treatments need to clear before regulatory 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.

A target enrollment of 1,000 participants makes this a sizable late-stage trial. Studies in this range typically have enough power to detect clinically meaningful differences from a comparator and to characterize less-common side effects.

Who May Be Eligible (Plain English)

Who May Qualify: 1. Signed written willing to sign a consent form. 2. Age ≥ 18 years. 3. Eyes with OAG, Pseudoexfoliation and pigmentary glaucoma will be included. 4. Best Corrected Visual Acuity (BCVA) ≥ 0.5 for the study eye. 5. Controlled IOP (≤ 18 mmHg, average of the last 3 measurements in the clinic) in the study eye. 6. Visual field MD not worse than -12 dB at the latest assessment in the clinic for the study eye. 7. Deteriorating MD at a rate between -0.5 dB/year and -1.0 dB/year, estimated from the latest VF tests collected in the clinic (at least 4) over a period during which incisional glaucoma surgery was not performed. Combinations of SITA Standard and Fast strategies (but not SITA Faster) is admissible. Patients who reach the desired minimum number of tests (4) with a mixture of SITA Standard/Fast and SITA Faster tests will need to perform additional replacement tests according to the prevalent strategy used in their series of VF (i.e. additional SITA Standard/Fast tests if ≤ 2 tests were SITA Faster; additional SITA Faster if \> 2 tests were SITA Faster). 8. Glaucoma definition will be based on VF damage (24-2, any SITA strategy) and spatially congruent glaucomatous changes at the ONH. If both eyes are eligible, the eye with the better MD will be chosen as the study eye. 9. Women of childbearing potential willing to use an appropriate method of contraception. Who Should NOT Join This Trial: 1. Cataract in the study eye which, in the opinion of the clinician, may require cataract surgery within the next three years. 2. Only-eye patients (visual acuity \< 0.1 decimals in one eye or more than two paracentral VF locations with a sensitivity of \< 10 dB). 3. Known intolerance or allergy to any of the components in the eye drops. 4. Diode laser treatment or glaucoma surgery in the past 2 years or cataract surgery within the last 6 months in the study eye. 5. Eyes with any type of glaucoma other than primary, pseudoexfoliative or pigmentary OAG. ...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: 1. Signed written informed consent. 2. Age ≥ 18 years. 3. Eyes with OAG, Pseudoexfoliation and pigmentary glaucoma will be included. 4. Best Corrected Visual Acuity (BCVA) ≥ 0.5 for the study eye. 5. Controlled IOP (≤ 18 mmHg, average of the last 3 measurements in the clinic) in the study eye. 6. Visual field MD not worse than -12 dB at the latest assessment in the clinic for the study eye. 7. Deteriorating MD at a rate between -0.5 dB/year and -1.0 dB/year, estimated from the latest VF tests collected in the clinic (at least 4) over a period during which incisional glaucoma surgery was not performed. Combinations of SITA Standard and Fast strategies (but not SITA Faster) is admissible. Patients who reach the desired minimum number of tests (4) with a mixture of SITA Standard/Fast and SITA Faster tests will need to perform additional replacement tests according to the prevalent strategy used in their series of VF (i.e. additional SITA Standard/Fast tests if ≤ 2 tests were SITA Faster; additional SITA Faster if \> 2 tests were SITA Faster). 8. Glaucoma definition will be based on VF damage (24-2, any SITA strategy) and spatially congruent glaucomatous changes at the ONH. If both eyes are eligible, the eye with the better MD will be chosen as the study eye. 9. Women of childbearing potential willing to use an appropriate method of contraception. Exclusion Criteria: 1. Cataract in the study eye which, in the opinion of the clinician, may require cataract surgery within the next three years. 2. Only-eye patients (visual acuity \< 0.1 decimals in one eye or more than two paracentral VF locations with a sensitivity of \< 10 dB). 3. Known intolerance or allergy to any of the components in the eye drops. 4. Diode laser treatment or glaucoma surgery in the past 2 years or cataract surgery within the last 6 months in the study eye. 5. Eyes with any type of glaucoma other than primary, pseudoexfoliative or pigmentary OAG. 6. Patients with other ocular or systemic comorbidities that, in the opinion of the Investigator, might affect the VF or the execution of the test. 7. Patients already on topical or systemic citicoline treatment. 8. Patients taking other systemic or topical potential neuroprotectors competing with citicoline eye drops 2% (a list will be provided) unwilling to suspend these treatments and undergo a washout period of 6 months prior to the study. 9. Patients unable to perform reliable VF tests, based on the assessment of the last 4 available 24-2 Humphrey Field Analyzer (HFA) VF tests performed in the clinic with a false positive rate (FP) ≤ 15%. 10. Pregnant and nursing patients.

Treatments Being Tested

DRUG

Citicoline eye drops 2%

Eye drops containing Citicoline 2%

DRUG

Placebo

Eye drops containing placebo matching product

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.

Presidio Ospedale San Paolo
Milan, MI, Italy

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT05710198), the sponsor (Omikron Italia S.r.l.), 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 NCT05710198 clinical trial studying?

To evaluate the efficacy of citicoline eye drops 2% in reducing visual field deterioration in patients with progressing OAG treated according to best clinical practice. Secondary objectives are assessing the effect of citicoline eye drops 2% on changes in structural parameters measured by Spectral Domain Optical Coherence Tomography (SD-OCT) and evaluating the safety of citicoline eye drops 2% The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT05710198?

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 NCT05710198?

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 NCT05710198. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT05710198. 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 2026-05-08 · Data from ClinicalTrials.gov.