Safety and Effectiveness of the Sight Sciences VISCO™360 Versus SLT in Primary Open Angle Glaucoma

NCT ID: NCT02928289

Last Updated: 2025-11-14

Study Results

Results available

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

29 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-23

Study Completion Date

2019-01-17

Brief Summary

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The purpose of this study is to evaluate the safety and effectiveness of the Sight Sciences VISCO™360 Viscosurgical System in reducing intraocular pressure (IOP) in adult, pseudophakic subjects with open-angle glaucoma.

Detailed Description

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This is a randomized study comparing viscodilation with the VISCO360 device to selective laser trabeculoplasty. Subjects with mild to moderate primary open-angle glaucoma undergo IOP-lowering medication washout at baseline and at Month 12. Subjects will be followed through Month 24.

Conditions

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Open-Angle Glaucoma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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VISCO360 ab interno canaloplasty surgery

Subjects randomized to this arm will undergo a surgical procedure in which the VISCO360 Viscosurgical System will be used to microcatheterize and viscodilate Schlemm's canal (i.e., canaloplasty).

Group Type ACTIVE_COMPARATOR

VISCO360 ab interno canaloplasty surgery

Intervention Type DEVICE

360 degrees of viscodilation of Schlemm's canal

Selective Laser Trabeculoplasty (SLT)

Subjects randomized to this arm will undergo the SLT procedure.

Group Type ACTIVE_COMPARATOR

Selective Laser Trabeculoplasty (SLT)

Intervention Type DEVICE

360 degrees of selective laser trabeculoplasty

Interventions

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VISCO360 ab interno canaloplasty surgery

360 degrees of viscodilation of Schlemm's canal

Intervention Type DEVICE

Selective Laser Trabeculoplasty (SLT)

360 degrees of selective laser trabeculoplasty

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Diagnosed with primary open-angle glaucoma (POAG) in the study eye.
* Pseudophakic with Posterior Chamber IOL (PCIOL)
* Able and willing to attend follow up visits for two years post-operative
* Able and willing to sign informed consent

Exclusion Criteria

* Phakia or aphakia
* Previous glaucoma procedure with or without an implantable glaucoma device (including incisional surgery, ALT, iridectomy/iridotomy, etc.) \[Subjects with one prior SLT application (\>3 months prior to screening) or prior ECP (performed \> 12 months prior to screening) can be enrolled\].
* Use of more than 3 ocular hypotensive medications (combination medications count as 2 medications)
* Diagnosis of acute angle closure, traumatic, congenital, malignant, uveitic, pseudoexfoliative, pigmentary or neovascular glaucoma
* Abnormal angle anatomy as determined by gonioscopy (e.g. peripheral anterior synechiae, rubeosis or other angle abnormalities)
* Participation in any clinical trial ≤ 30 days prior to screening
Minimum Eligible Age

22 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Sight Sciences, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Anne-Marie Ripley

Role: STUDY_DIRECTOR

Sight Sciences, Inc.

Locations

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Vold Vision

Fayetteville, Arkansas, United States

Site Status

Coastal Vision Medical Group

Orange, California, United States

Site Status

Dean McGee Eye Institute

Oklahoma City, Oklahoma, United States

Site Status

Wills Eye Hospital

Philadelphia, Pennsylvania, United States

Site Status

El Paso Eye Surgeons

El Paso, Texas, United States

Site Status

Ophthalmology Associates

Fort Worth, Texas, United States

Site Status

Countries

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United States

References

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Rolim-de-Moura CR, Paranhos A Jr, Loutfi M, Burton D, Wormald R, Evans JR. Laser trabeculoplasty for open-angle glaucoma and ocular hypertension. Cochrane Database Syst Rev. 2022 Aug 9;8(8):CD003919. doi: 10.1002/14651858.CD003919.pub3.

Reference Type DERIVED
PMID: 35943114 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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SIGHTVISCO-001

Identifier Type: -

Identifier Source: org_study_id