- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03949244
Nailfold Capillary Blood Flow With Latanoprost Bunod
Effect of Nailfold Application of Latanoprostene Bunod on Nailfold Capillary Blood Flow
Study Overview
Status
Conditions
Detailed Description
In this study, the study team investigates the effect of topically-applied latanoprostene bunod (LTB) on the blood flow at the nailfold of the 4th finger in patients with primary open angle glaucoma. LTB is a new anti-glaucoma eye drop which received FDA clearance in early November 2017. It has two components: the prostaglandin analog (PGA) which decreases intraocular pressure (IOP) by enhancing the drainage of the aqueous (the fluid in the front part of the eye) from the eye, and the nitric oxide (NO) moiety which naturally dilates arteries in the body. The capillaries at the nailfold are comparable to those of the optic nerve head, which makes them a reasonable surrogate for evaluation of the effect of LTB on the blood flow. Therefore, this study may provide indirect evidence for the beneficial effect of LTB on blood flow to optic nerve which can potentially save the optic nerve from glaucomatous damage. Primary open angle glaucoma is a progressive condition and is the most common cause of irreversible blindness worldwide. Primary open angle glaucoma (POAG) is a subset of the glaucomas defined by an open, normal appearing anterior chamber angle and raised intraocular pressure (IOP), with no other underlying disease.
In addition to LTB, the study team will use latanoprost (L), an-FDA approved PGA anti-glaucoma eye drop and normal saline (NS: the physiologic solution composed of 0.9% salt and water), as controls to make sure the effects of LPB on nail fold capillary blood flow is not due to its PGA (as L is) or due to the placebo effect (as NS is).
This study may also serve as background information for the development of new anti-glaucoma medications which can be injected into the eye to facilitate blood flow to the optic nerve.
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
New York
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New York, New York, United States, 10003
- New York Eye and Ear Infirmary of Mount Sinai
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 40 years old to 80 years old
- All participants will have open angles and no signs of secondary glaucoma such as exfoliation syndrome
- Untreated intraocular pressure (IOP) may be ≤ 21mmHg or ≥ 21mmHg in both eyes
- The cup-to-disc ratio (CDR) ≥ 0.6 in both eyes and CDR asymmetry ≤ 0.2.
- POAG patients will have reliable Humphrey Visual Field (HVF) loss consistent with optic nerve damage
- POAG patients can have any stage of POAG and be on any form of treatment for their disease.
- Willingness to sign informed consent and comply with study procedures.
Exclusion Criteria:
- History of non-POAG forms of glaucoma
- Pregnancy
- Inability to give informed consent
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Latanoprost 0.005%
Latanoprost 0.005% drops to the nailfold.
|
Latanoprost 0.005% will be applied to the nailfold and images of the blood flow in the nailfold capillaries will be acquired.
Other Names:
An imaging system and does not penetrate the skin.
A video camera with a magnifying lens used for studying the movement of blood in small blood vessels at the nailfold of the 4th finger.
Other Names:
|
Experimental: Latanoprost bunod 0.024%
Latanoprost bunod 0.024% drops to the nailfold.
|
An imaging system and does not penetrate the skin.
A video camera with a magnifying lens used for studying the movement of blood in small blood vessels at the nailfold of the 4th finger.
Other Names:
Latanoprost bunod 0.024% will be applied to the nailfold and images of the blood flow in the nailfold capillaries will be acquired.
Other Names:
|
Placebo Comparator: Normal saline 0.9%
Normal saline 0.9% to the nailfold.
|
An imaging system and does not penetrate the skin.
A video camera with a magnifying lens used for studying the movement of blood in small blood vessels at the nailfold of the 4th finger.
Other Names:
Normal saline 0.9% will be applied to the nailfold and images of the blood flow in the nailfold capillaries will be acquired.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
NFC Blood Flow at Baseline and 15 Minutes
Time Frame: baseline and 15 minutes
|
NFC blood flow at baseline and at 15 minutes after NF application to the 4th digit of the nondominant hand.
|
baseline and 15 minutes
|
Collaborators and Investigators
Investigators
- Principal Investigator: Robert Ritch, MD, Icahn School of Medicine at Mount Sinai
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- GCO 18-2686
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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