Study to Evaluate the Efficacy of SDP-4 in Subjects With Dry Eye Disease (DED) (SDP-4-CS202)
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ClinicalTrials.gov Identifier: NCT04535947 |
Recruitment Status :
Recruiting
First Posted : September 2, 2020
Last Update Posted : September 4, 2020
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Dry Eye | Drug: Vehicle Drug: SDP-4 Ophthalmic Solution (1.0%) | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 140 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Subjects will be randomized to either 1% SDP-4 ophthalmic solution or vehicle in 1:1 ratio in parallel groups. |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Masking Description: | All investigation product (1% SDP-4 ophthalmic solution and vehicle) will be provided in single-use doses (SUDs) contained in foil pouches. |
Primary Purpose: | Treatment |
Official Title: | A Phase 2, Multicenter, Double-Masked, Randomized, Vehicle-Controlled, Parallel Group, Study of SDP-4 Ophthalmic Solution in Subjects With Dry Eye Disease (DED) |
Actual Study Start Date : | August 14, 2020 |
Estimated Primary Completion Date : | March 31, 2021 |
Estimated Study Completion Date : | March 31, 2021 |

Arm | Intervention/treatment |
---|---|
Placebo Comparator: Vehicle
Vehicle
|
Drug: Vehicle
Investigational product (IP) will be administered via topical ocular instillation, one drop per eye, twice daily (BID) for 8 weeks (56 days). Both eyes will be treated. |
Experimental: SDP-4 Ophthalmic Solution (1.0%)
Active
|
Drug: SDP-4 Ophthalmic Solution (1.0%)
Investigational product (IP) will be administered via topical ocular instillation, one drop per eye, twice daily (BID) for 8 weeks (56 days). Both eyes will be treated.
Other Name: SDP-4 (1.0%) |
- Symptom Assessment in Dry Eye (SANDE) Questionnaire [ Time Frame: 56 days ]Mean change from baseline in total SANDE at Visit 5/Day 56
- Corneal fluorescein staining [ Time Frame: 56 days ]Mean and mean change from baseline at each visit
- Tear Breakup Time [ Time Frame: 56 days ]Mean and mean change from baseline at each visit
- Conjunctival hyperemia [ Time Frame: 56 days ]Mean and mean change from baseline at each visit
- Individual symptom Visual Analog Scale (VAS) scores, separately for each symptom [ Time Frame: 56 days ]Mean and mean change from baseline at each visit as measured on a scale from 0 to 100, where higher scores indicate a worse outcome

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Have DED in both eyes, as supported by a subject-reported history of daily symptoms of dryeye for ≥ 6 months prior to Visit 1/Screening requiring the use of artificial tears.
- Total score ≥ 40 and ≤ 70 on the SANDE questionnaire at Visits 1 and 2.
- Tear break-up time (TBUT) of ≤ 6 seconds in both eyes at Visits 1 and 2.
- Anesthetized Schirmer's test tear volume ≥ 3 mm and <10 mm in both eyes (only at Visit 1).
- Best-corrected visual acuity (BCVA) of +0.7 logMAR or better in each eye as assessed by logMAR chart at Visits 1 and 2.
Exclusion Criteria:
- Ocular surface corneal disease other than DED.
- Diagnosis of Sjögren's disease.
- Lid margin disorder other than meibomian gland dysfunction (MGD)
- Presence of any ocular condition (e.g., pterygium) that in the Investigator's opinion could affect study parameters.
- Any previous reconstructive or cosmetic eyelid surgery
- Any previous invasive glaucoma and/or corneal surgery
- Corneal refractive surgery in the 12 months prior to Visit 1/Screening.
- Cataract extraction within 90 days prior to Visit 1/Screening.
- Cauterization of the punctum or punctal plug (silicone or collagen) insertion or removal within 30 days prior to Visit 1/Screening or planned during the study.
- Contact lens wear.
- Use of ophthlamic corticosteroids, NSAIDs, antibiotics, antihistamines, IOP lowering medication, in the 30 days prior to Visit 1/Screening
- Serious systemic disease or uncontrolled medical condition that in the judgment of the Investigator could confound study assessments

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04535947
Contact: Nick Paulson | 763-463-9316 | nickpaulson@silk-tech.com |
United States, California | |
Orange County Ophthalmology Medical Group | Recruiting |
Garden Grove, California, United States, 92843 | |
LoBue Laser and Eye Medical Center | Recruiting |
Murrieta, California, United States, 92562 | |
Eye Research Foundation | Recruiting |
Newport Beach, California, United States, 92663 | |
United States, Missouri | |
Ophthalmology Associates | Recruiting |
Saint Louis, Missouri, United States, 63131 | |
United States, Tennessee | |
Total Eye Care | Recruiting |
Memphis, Tennessee, United States, 38119 |
Responsible Party: | Silk Technologies, Ltd. |
ClinicalTrials.gov Identifier: | NCT04535947 |
Other Study ID Numbers: |
SDP-4-CS202 |
First Posted: | September 2, 2020 Key Record Dates |
Last Update Posted: | September 4, 2020 |
Last Verified: | September 2020 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Keratoconjunctivitis Sicca Dry Eye Syndromes Eye Diseases Keratoconjunctivitis Conjunctivitis Conjunctival Diseases |
Keratitis Corneal Diseases Lacrimal Apparatus Diseases Ophthalmic Solutions Pharmaceutical Solutions |