Subjects With Open-angle Glaucoma, Pseudoexfoliative Glaucoma, or Ocular Hypertension Naïve to Medical and Surgical Therapy, Treated With Two Trabecular Micro-bypass Stents (iStent Inject) or Travoprost

September 2, 2022 updated by: Glaukos Corporation

A Prospective, Randomized Evaluation of Subjects With Open-angle Glaucoma, Pseudoexfoliative Glaucoma, or Ocular Hypertension Naïve to Medical and Surgical Therapy, Treated With Two Trabecular Micro-bypass Stents (iStent Inject) or Travoprost Ophthalmic Solution 0.004%

Evaluation of the intraocular pressure (IOP) lowering effect of two iStent inject devices versus medical therapy in eyes of subjects with primary open-angle glaucoma, pseudoexfoliative glaucoma, or ocular hypertension naïve to medical and surgical therapy.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Evaluation of the intraocular pressure (IOP) lowering effect of two iStent inject devices versus medical therapy in eyes of subjects with primary open-angle glaucoma, pseudoexfoliative glaucoma, or ocular hypertension naïve to medical and surgical therapy.

Study Type

Interventional

Enrollment (Actual)

196

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Armenia
      • Yerevan, Armenia, 0001
        • S.V. Malayan Ophthalmological Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Phakic study eye
  • IOP ≥ 21 mmHg and ≤ 40 mmHg at the screening visit (subjects with OHT require a second screening IOP measurement

Exclusion Criteria:

  • Aphakic or pseudophakic eyes (AC-IOLs or PC-IOLs)
  • Previous usage of topical prostaglandin analogues or prior medical therapy for glaucoma

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: iStent inject
Implantation of two iStent inject devices
Device: iStent inject
Implantation of two iStent inject devices
Active Comparator: Drug
Travoprost drops
Drug: Travoprost
Travoprost drops

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change from screening in mean diurnal IOP (mm Hg) at the Month 12 visit.
Time Frame: 12 months
12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in mean diurnal IOP vs. screening
Time Frame: Month 24
Month 24
Change in screening in time-wise IOPs
Time Frame: Various Month 12-60
Various Month 12-60
Proportion of responders
Time Frame: Various 12-60 months
A responder is defined as a subject with a certain target IOP value or a certain reduction of IOP as compared to screening. In the iStent inject group, a responder must not be on an ocular hypotensive medications or have had a postoperative procedure to reposition or remove stent(s) prior to the visit. Due to the lack of a complete consensus on the definition of a clinical responder, a set of target IOP values (e.g., downwards from 22 mm Hg in steps of 1 mm Hg) and reductions of IOP (e.g., downwards from the highest reduction in IOP in steps of 5%) will be evaluated.
Various 12-60 months

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adverse event reporting
Time Frame: 0-60 months

Rate of ocular adverse events through 60 months

  • Findings from IOP, best corrected visual acuity, visual field
  • Findings from slit-lamp, fundus and gonioscopic examinations
0-60 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Glaukos Corporation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2011

Primary Completion (Actual)

March 28, 2019

Study Completion (Actual)

March 28, 2019

Study Registration Dates

First Submitted

September 28, 2011

First Submitted That Met QC Criteria

September 29, 2011

First Posted (Estimate)

September 30, 2011

Study Record Updates

Last Update Posted (Actual)

September 8, 2022

Last Update Submitted That Met QC Criteria

September 2, 2022

Last Verified

September 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • GCF-027

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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