An Exploratory Efficacy and Safety Study of DFL24498 Topical Ophthalmic Solution Compared With Vehicle in Participants With Dry Eye Disease
A 12-Week, Phase 2, Multicenter, Randomized, Double-Masked, Vehicle Controlled, Parallel Group Study With 2 Weeks of Follow-Up to Evaluate the Efficacy and Safety of DFL24498 0.08% Topical Ophthalmic Solution Versus Vehicle in Participants With Dry Eye Disease
1 other identifier
interventional
417
1 country
24
Brief Summary
This is a Phase 2, randomized, multicenter, double masked, vehicle controlled, parallel group study to evaluate the efficacy and safety of DFL24498 topical ophthalmic solution versus vehicle in participants with dry eye disease. Approximately 417 participants aged 18 years or older who meet all eligibility criteria will be enrolled at study sites in the US. The study duration will be up to 16 weeks and will consist of three periods.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started May 2026
Shorter than P25 for phase_2
24 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 25, 2026
CompletedFirst Posted
Study publicly available on registry
March 31, 2026
CompletedStudy Start
First participant enrolled
May 12, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 24, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 7, 2027
June 26, 2026
June 1, 2026
9 months
March 25, 2026
June 23, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change from baseline in corneal fluorescein staining (CFS) assessed by National Eye Institute (NEI) scale (0 to 15) in the Study Eye
Fluorescein will be applied to the inferior fornix of the palpebral conjunctiva of each eye. To avoid the phenomenon of quenching, staining will be assessed within 1 to 4 minutes from fluorescein instillation. The CFS is performed at the slit lamp with blue (cobalt) light. The staining is graded using the NEI scale, which scores five corneal zones from 0 to 3 (total corneal score 0-15) with higher scores indicating more extensive staining.
Baseline to Week 12
Secondary Outcomes (4)
Change from baseline in ocular dryness symptom assessed by the global score of the Symptom Assessment in Dry Eye (SANDE) questionnaire
Baseline to Week 12]
Change from baseline in tear production assessed by Schirmer I test without anesthesia in the Study Eye
Baseline to Week 12
Change from baseline; in conjunctival fluorescein staining assessed by NEI scale (0 to 18) in the Study Eye.
Baseline to Week 12
Number of participants reporting treatment-emergent adverse events
Up to Week 14
Study Arms (2)
DFL24498
EXPERIMENTALParticipants will receive DFL24498 opthalmic solution administered topically in both eyes.
Vehicle
PLACEBO COMPARATORParticipants will receive vehicle opthalmic solution administered topically in both eyes.
Interventions
Eligibility Criteria
You may qualify if:
- A diagnosis of DED at least 6 months before enrollment (current use or recommended use of artificial tears for the treatment of dry eye).
- The global score of the SANDE questionnaire ≥ 30
- DED in at least one eye which is characterized by the following clinical features:
- Schirmer I test without anesthesia \< 10 mm/5 minutes, and
- Total CFS grade ≥ 4 assessed by the NEI grading system, and
- Fluorescein tear film break-up time (TFBUT) \< 10 seconds.
- Best corrected visual acuity (BCVA) score on early treatment of diabetic retinopathy study (ETDRS) chart of ≥ 35 letters (corresponding to ≥ 0.1 Snellen decimal units or ≤ 1.0 Logarithm of the Minimum Angle of Resolution (Chart) \[LogMAR\]) in each eye at the time of study enrollment.
- Only participants who satisfy all informed consent requirements will be included in the study.
You may not qualify if:
- Inability to speak and understand the local language sufficiently to understand the nature of the study, to provide written informed consent, and to allow the completion of all study assessments.
- Evidence of an active ocular infection in either eye.
- Anticipated need for ocular surgery during the study period, or any prior ocular surgery for 6 months prior to screening.
- Intraocular inflammation defined as anterior chamber cell or flare \> 0 by Standardization of Uveitis Nomenclature (SUN) grading in either eye.
- Known or suspected ocular malignancy (ocular surface, intraocular, ocular adnexa) in either eye.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (24)
Arizona Eye Center
Chandler, Arizona, 85224, United States
Canyon City Eyecare
Azusa, California, 91702, United States
Global Research Management, Inc.
Glendale, California, 91204, United States
United Medical Research Institute
Inglewood, California, 90301, United States
LoBue Laser and Eye Medical Center
Murrieta, California, 82562, United States
Eye Research Foundation
Newport Beach, California, 92663, United States
NVision Clinical Research, LLC
Torrance, California, 90505, United States
Shettle Eye Research, Inc.
Largo, Florida, 33773, United States
University of South Florida - Marshall Student Center
Tampa, Florida, 33612, United States
Clayton Eye Clinical Research
Morrow, Georgia, 30260, United States
Price Vision Group / Cornea Research Foundation of America
Indianapolis, Indiana, 46260, United States
Minnesota Eye Consultants
Minnetonka, Minnesota, 55305, United States
Tekwani Vision Center
St Louis, Missouri, 63128, United States
Comprehensive Eye Care, Ltd.
Washington, Missouri, 63090, United States
Asheville Eye Associates - Regional Medical Park
Asheville, North Carolina, 28803, United States
Oculus Research, Inc.
Garner, North Carolina, 27529, United States
Core, Inc.
Shelby, North Carolina, 28150, United States
Cincinnati Eye Institute
Mason, Ohio, 45040, United States
Scott & Christie and Associates, PC
Cranberry Township, Pennsylvania, 16066, United States
Total Eye Care, PA - Memphis
Memphis, Tennessee, 38119, United States
Houston Eye Associates
Houston, Texas, 77025, United States
Lake Travis Eye and Laser Center
Lakeway, Texas, 78738, United States
Alpine Research Organization, Inc.
Clinton, Utah, 84015, United States
Piedmont Eye Center
Lynchburg, Virginia, 24502, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 25, 2026
First Posted
March 31, 2026
Study Start
May 12, 2026
Primary Completion (Estimated)
January 24, 2027
Study Completion (Estimated)
February 7, 2027
Last Updated
June 26, 2026
Record last verified: 2026-06
Data Sharing
- IPD Sharing
- Will not share