QST for Corneal Nerve Function
NCT05758753 · Status: SUSPENDED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 108
Last updated 2026-01-08
Summary
This study is designed to learn more about the impact different types of stimuli, such as heat, cold and vibration, can have on ocular pain response. This is called quantitative sensory testing (QST). Most procedures being performed in this study, except the QST, are standard of care which means they are performed during the participant's routine eye examination.
Conditions
- Corneal Disease
- Neuropathy
- Dry Eye Disease
- Neurotrophic Keratitis
Interventions
- DEVICE
-
Quantitative Sensory Test
Quantitative Sensory Test (Medoc Ltd, Israel), QST is a non-invasive neurophysiological method that refers to a group of procedures that assess the perceptual responses to systematically applied and quantifiable sensory stimuli (modalities including heat, cold and vibration) for the purpose of characterizing somatosensory function or dysfunction. For this test, subjects will be seated comfortably on a chair in a quiet room, or laying supine in a horizontal examination chair, with ambient temperature of 24-25◦ C. Medial upper eyelid; just below the supraorbital notch, nasolacrimal sac area; 4-5 mm medial to nasal cantus, and non-dominant forearm will be used as test sites. Patients will be instructed in detail of the nature of the test and the need to react attentively and promptly to change in temperatures.
Sponsors & Collaborators
-
Dompé Farmaceutici S.p.A
collaborator INDUSTRY -
Tufts Medical Center
lead OTHER
Principal Investigators
-
Pedram Hamrah, MD · Tufts Medical Center
Study Design
- Allocation
- NON_RANDOMIZED
- Purpose
- TREATMENT
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 18 Years
- Sex
- ALL
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2023-05-16
- Primary Completion
- 2026-10-31
- Completion
- 2027-06-30
Countries
- United States
Study Locations
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