Publications by authors named "Jason Vittitow"

Background: Dry eye disease (DED) is commonly caused by excessive tear film evaporation due to Meibomian gland dysfunction (MGD). There is a need for DED treatment options that address tear evaporation and benefit patients across a broad range of demographic and disease characteristics. This study evaluated treatment effects of perfluorohexyloctane ophthalmic drop (formerly NOV03) in the pooled dataset from 2 pivotal clinical trials in patients with DED associated with MGD, both in the overall population and in patient subgroups based on sex, age, and baseline severity of eye dryness.

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  • - The study aimed to evaluate the long-term safety and effectiveness of perfluorohexyloctane (PFHO) eye drops for treating dry eye disease (DED) through the KALAHARI trial, which followed a previous study called GOBI.
  • - In the KALAHARI trial, 208 patients used PFHO drops for a year, with safety assessments indicating mostly mild adverse effects, while effectiveness was measured by improvements in corneal staining and dry eye scores.
  • - Results showed that PFHO was safe and well-tolerated, effectively maintaining improvements in DED symptoms over the study period, including for patients who switched from saline to PFHO.
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  • The study investigates the oxygen content in perfluorohexyloctane (PFHO), an FDA-approved eye drop for treating dry eye disease, highlighting its efficacy and properties.* -
  • Using fluorine-19 nuclear magnetic resonance spectroscopy, researchers measured T1 relaxation times and found that PFHO has a substantial level of oxygen compared to natural tears.* -
  • Results suggest that PFHO does not hinder the oxygen needed for corneal health and may provide beneficial oxygen to aid healing in patients with dry eye.*
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  • PFHO (perfluorohexyloctane) MIEBO is a water-free eye drop approved for treating dry eye disease and shows significant potential in reducing the evaporation rate of saline in lab tests.
  • In experiments, PFHO decreased the evaporation rate by up to 88% when layered over saline, outperforming common artificial tears and demonstrating its effectiveness at both 25°C and 35°C.
  • The findings suggest that PFHO could potentially replace the natural lipid layer in the tear film, providing a new option for patients suffering from dry eye disease.
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Purpose: To evaluate the efficacy and safety of NOV03 (perfluorohexyloctane) ophthalmic drop for the treatment of signs and symptoms of dry eye disease (DED) associated with meibomian gland dysfunction (MGD).

Design: Randomized, double-masked, controlled trial.

Methods: Patients ≥18 years of age with a history of DED and signs of MGD were randomly assigned 1:1 to treatment with NOV03 or hypotonic saline (0.

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Purpose: To evaluate the efficacy and safety of NOV03 (perfluorohexyloctane) ophthalmic drop in patients with dry eye disease (DED) associated with meibomian gland dysfunction (MGD).

Design: Eight-week, phase 3, multicenter, randomized, double-masked, saline-controlled study.

Participants: Adults ≥ 18 years with a history of DED for ≥ 6 months, tear film breakup time of ≤ 5 seconds, Schirmer I test (without anesthesia) score ≥ 5 mm, MGD score ≥ 3 (0-15 scale), and total corneal fluorescein staining (tCFS) score ≥ 4 and ≤ 11 (0-15 National Eye Institute [NEI] scale).

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Ribavirin is an inosine monophosphate dehydrogenase inhibitor. Studies suggest ribavirin aerosol could be a safe and efficacious treatment option in the fight against coronaviruses. However, current treatment is long (12-18 h per day, 3-7 days), limiting clinical utility.

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Purpose: To compare loteprednol etabonate (LE) gel 0.5% with prednisolone acetate suspension (PA) 1% for the treatment of inflammation after cataract surgery in children.

Setting: Eleven sites in the United States.

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Purpose: To evaluate the efficacy and safety of a submicron formulation of loteprednol etabonate (LE) gel 0.38% instilled three times daily (TID) compared with vehicle for the treatment of inflammation and pain following cataract surgery with intraocular lens implantation, integrated across two multicenter, double-masked, randomized, parallel-group, Phase III studies.

Patients And Methods: Subjects ≥18 years of age with anterior chamber (AC) cells ≥grade 2 (6-15 cells) on day 1 after cataract surgery were randomized to receive 1 drop of LE gel 0.

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  • The study evaluated the safety and effectiveness of brimonidine tartrate ophthalmic solution (0.025%) for treating ocular redness by analyzing integrated data from multiple controlled studies.
  • Results showed that participants using brimonidine experienced significantly lower levels of ocular redness compared to those using a vehicle (placebo) across various assessment points, with no signs of rapid tolerance developing.
  • The treatment demonstrated a low incidence of adverse effects, with the most common issues being reduced visual acuity and conjunctival hyperemia, both similar between the brimonidine and vehicle groups.
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Purpose: To assess the safety and efficacy of a 0.38% submicron formulation of loteprednol etabonate (LE) gel for the treatment of postoperative inflammation and pain after cataract surgery.

Setting: Forty-five United States ophthalmology practices.

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Purpose: To compare the diurnal intraocular pressure (IOP)-lowering effect of latanoprostene bunod (LBN) 0.024% with timolol maleate 0.5% in subjects with open-angle glaucoma (OAG) or ocular hypertension (OHT).

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Introduction: Latanoprostene bunod (LBN) is a novel nitric oxide (NO)-donating prostaglandin F2α analog. We evaluated the long-term safety and intraocular pressure (IOP)-lowering efficacy of LBN ophthalmic solution 0.024% over 1 year in Japanese subjects with open-angle glaucoma (OAG) or ocular hypertension (OHT).

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Purpose: To compare the diurnal and nocturnal effects of latanoprostene bunod 0.024% solution with timolol maleate 0.5% solution on intraocular pressure (IOP) and ocular perfusion pressure.

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Purpose: To compare the intraocular pressure (IOP)-lowering effect of latanoprostene bunod (LBN) 0.024% with timolol maleate 0.5% in subjects with open-angle glaucoma (OAG) or ocular hypertension (OHT).

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Purpose: To compare the diurnal intraocular pressure (IOP)-lowering effect of latanoprostene bunod (LBN) ophthalmic solution 0.024% every evening (qpm) with timolol maleate 0.5% twice daily (BID) in subjects with open-angle glaucoma (OAG) or ocular hypertension (OHT).

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Introduction: Latanoprostene bunod is a novel nitric oxide (NO)-donating prostaglandin F2α receptor agonist in clinical development for the reduction of intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. We evaluated the effect of latanoprostene bunod 0.024% instilled once daily (QD) on lowering IOP over a 24-h period in healthy Japanese subjects following 14 days of treatment.

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Aim: To assess the efficacy and safety of latanoprostene bunod (LBN) compared with latanoprost 0.005%, and to determine the optimum drug concentration(s) of LBN in reducing intraocular pressure (IOP) in subjects with open angle glaucoma or ocular hypertension.

Methods: Randomised, investigator-masked, parallel-group, dose-ranging study.

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Purpose: To evaluate the safety, tolerability, and intraocular pressure (IOP)-lowering effect of Latrunculin-B (Lat-B), a marine macrolide that disrupts the actin cytoskeleton, in patients with ocular hypertension (OHT) or early primary open-angle glaucoma (POAG).

Methods: In this Phase I, multicenter, double-masked, randomized, placebo-controlled, ascending-dose study, subjects with bilateral OHT or early POAG (>22 mm Hg) received one of four concentrations of INS115644 (Lat-B ophthalmic solutions, 0.005%, 0.

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The predominant risk factor for the progression of glaucoma is an increase in IOP, mediated via a reduction in aqueous outflow through the conventional (trabecular meshwork and Schlemm's canal) outflow pathway. Current IOP lowering pharmacological strategies target the uveoscleral (nonconventional) outflow pathway or aqueous humor production; however, to date no therapy that primarily targets the conventional pathway exists. Nitric oxide (NO) is an intracellular signaling molecule produced by endogenous NO synthases, well-known for its key role in vasodilation, through its action on smooth muscle cells.

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Purpose: To investigate the ocular distribution of 1% azithromycin ophthalmic solution and the effect of polycarbophil-based mucoadhesive formulation on ocular tissue levels of azithromycin after single and multiple topical administrations in the rabbit eye.

Methods: Rabbits were treated with either a single administration of 1% azithromycin solution with or without polycarbophil, or with multiple administrations of 1% azithromycin solution in polycarbophil. Drug concentrations were measured using LC/MS/MS.

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Caldesmon is a multifunctional ubiquitous regulator of the actin cytoskeleton, which can affect both actomyosin contractility and actin polymerization. Previous studies showed that caldesmon over-expression in cultured fibroblasts produces effects that resemble those of chemical inhibitors of cellular contractility. Since these inhibitors (H-7, Y-27632, etc.

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Cytoskeleton modulating compounds have been shown to lower intraocular pressure (IOP) and increase outflow facility. Caldesmon is one protein that is involved in the regulation of actin stress fiber formation. The effects of rat non-muscle caldesmon (Cald) gene over-expression on focal adhesions in human trabecular meshwork (HTM) cells and on outflow facility in organ-cultured human and monkey anterior segments were determined.

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Physiological pressure inside the eye is maintained by a resistance mechanism provided by the trabecular meshwork tissue. In most cases, prolonged, elevated pressure leads to an eye pathology characterized by retinal ganglion cell (RGC) degeneration, optic nerve damage, and non-remedial blindness. We are investigating the regulation of trabecular meshwork genes in response to elevated pressure.

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Optineurin (optic neuropathy inducing protein; OPTN) was recently linked to 16.7% of families with primary open-angle glaucoma. The function of OPTN in the eye is not known, but is present in the trabecular meshwork, which is responsible for maintenance of intraocular pressure (IOP).

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