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Safety, Tolerability, and Distribution of Laquinimod Eye Drops : The LION Study

Safety, Tolerability, and Distribution of Topical Laquinimod Eye Drops , an Innovative ImmunomodulatOr Targeting Aryl hydrocarboN Receptor (AhR): The LION Study

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06161415
Acronym
LION
Enrollment
12
Registered
2023-12-07
Start date
2024-05-03
Completion date
2025-07-31
Last updated
2025-05-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Inflammation, Uveitis

Keywords

Uveitis, Inflammation, Laquinimod eye drops, Topical, Immunomodulation

Brief summary

The LION Study is a prospective, single-center phase 1 clinical trial to evaluate the safety, tolerability, and distribution of Laquinimod administered as topical eye drops for two weeks in human participants.

Detailed description

Participants who fulfill the study eligibility criteria and who are planned to undergo a pars plana vitrectomy will be enrolled in the study. Eligible participants scheduled for a diagnostic vitrectomy may also be enrolled. The study will consist of two stages: Stage One - Open label dose escalation: Up to three subsequent dose-escalation groups will receive Laquinimod eye drops for 2 weeks and samples will be assayed for Laquinimod concentration in aqueous humor, vitreous and plasma. Stage Two- Randomized, Controlled Comparison of 2 Laquinimod doses: After the dose escalation cohorts are analysed, 2 Laquinimod doses will be selected for a randomized comparison. The doses in stage 2 will not exceed those studied in stage 1.

Interventions

DRUGLaquinimod eye drops

n Laquinimod eye drops 10 mg/ml Dose: Dosing frequency will depend on the groups assigned

Sponsors

Global Ophthalmic Research Center (GORC)
CollaboratorUNKNOWN
Quan Dong Nguyen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

The study will consist of two stages: Stage One - Open label dose escalation: Up to three subsequent dose-escalation groups will receive Laquinimod eye drops for 2 weeks and samples will be assayed for Laquinimod concentration in aqueous humor, vitreous and plasma. Stage Two- Randomized, Controlled Comparison of 2 Laquinimod doses: After the dose escalation cohorts are analysed, 2 Laquinimod doses will be selected for a randomized comparison. The doses in stage 2 will not exceed those studied in stage 1.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age 18 years or older 2. Participants who are capable and willing to provide informed consent and follow study instructions. 3. Participants who are scheduled to undergo pars plana vitrectomy (PPV). 4. Participants with intraocular pressure (IOP) ≥ 5 mmHg and ≤22 mmHg in study eye 5. Women who are not pregnant or lactating, are post-menopausal or have undergone a sterilization procedure.

Exclusion criteria

1. Participants with active periocular or ocular infectious disease (e.g., blepharitis, scleritis, or conjunctivitis, keratitis or endophthalmitis). 2. Participants with active infectious uveitis 3. Participants with a history of prior intraocular or extraocular surgery within 90 days of study enrollment 4. Participant with a history of intravitreal steroids administered to the study eye within 90 days of enrollment. 5. Participants with a history of intravitreal injection of VEGF inhibitors within 30 days of enrollment 6. Use of any topical cyclosporine or corticosteroid or other specified (i.e. calcineurin inhibitors) ophthalmic medication in the study eye for any reason within 14 days of enrollment and before the surgery 7. Use of medication consisting of a strong or moderate inhibitor of CYP3A4 within 2 weeks of Baseline visit (and during the study). 8. Use of medication consisting of a strong inducer of CYP3A4 within 2 weeks of Baseline visit (and during the study) 9. Mild, moderate, or severe hepatic impairment (any of Child-Pugh Score A, B, and C) 10. Moderate or severe renal impairment (GFR ≤60 mL/min) 11. History of HIV disease or other immunodeficiency disorder 12. History of acute hepatitis A (IgM positive), hepatitis B, or hepatitis C 13. History of organ or bone marrow transplant 14. Presence of malignancy under active treatment 15. Any other acute or chronic medical condition that would, in the judgment of the study investigators, reasonably preclude participation in the clinical study 16. Already enrolled in a clinical trial. 17. Any condition that would prevent the investigator from acquiring images of the eye as required per protocol

Design outcomes

Primary

MeasureTime frameDescription
Concentration of Laquinimod in aqueous humor and vitreous samples of human participantsAfter 2 weeks of study drug administrationAssessment of concentration of Laquinimod in aqueous humor and vitreous samples of human by biolanalysis in specialized lab participants on Day 14 of Laquinimod eye-drop administration.
Concentration of Laquinimod in plasma of human participantsAfter 2 weeks of study drug administrationAssessment of concentration of Laquinimod in plasma of human participants on Day 14 of Laquinimod in specialized lab eye-drop administration. participants on Day 14 of Laquinimod eye-drop administration.

Secondary

MeasureTime frameDescription
Safety AssessmentBaseline to end of Study at 22-30daysAny Adverse events: ocular and non-ocular at Post operative Day 1 and Post operative Day 8 compared to baseline.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026