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ClinicalTrials.gov public records Last synced Sep 28, 2026, 4:03 PM EDT

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Showing 1–8 of 8 matching trials from the live ClinicalTrials.gov search.
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Conditions
Neuropathic Corneal Pain
Interventions
Urcosimod ophthalmic solution is a preservative-free topical ophthalmic product; supplied in unit dose ampoules; administered QID for 12-weeks.
Drug
Lead sponsor
Okyo Pharma Ltd
Industry
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Cornea
Interventions
TrueTear™ intranasal neurostimulator (ITN)
Device
Lead sponsor
Tufts Medical Center
Other
Eligibility
22 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Corneal Disease, Neuropathy
Interventions
Cenegermin-Bkbj
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Corneal Pain, Chronic Pain, Neuropathic Pain
Interventions
Transcranial Direct Current Stimulation (tDCS)
Device
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Suspended No phase listed Observational Accepts healthy volunteers

Prospective Study to Validate the Imaging Biomarker for NCP (R33)

NCT05653921
Conditions
Dry Eye Syndromes, Corneal Disease
Interventions
In vivo confocal microscopy (IVCM)
Other
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
438 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts • Philadelphia, Pennsylvania
Conditions
Neuropathic Pain
Interventions
OK-101 0.05%, OK-101 0.1%, Placebo
Drug
Lead sponsor
Okyo Pharma Ltd
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Autoimmune Diseases, Dry Eye, Neurotrophic Keratitis
Interventions
Acthar Gel 80 UNT/ML Injectable Solution
Drug
Lead sponsor
Toyos Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Conditions
Chronic Ocular Pain
Interventions
SAF312 Placebo, SAF312
Other · Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
24
States / cities
Mission Hills, California • Newport Beach, California • Palo Alto, California + 19 more