Safety and Efficacy of Deep Wave Trabeculoplasty (DWT) in Primary Open Angle Glaucoma and Ocular Hypertension

April 3, 2017 updated by: OcuTherix, Inc.

A Prospective, Randomized, Controlled Clinical Feasibility Investigation of the Safety and Efficacy of Deep Wave Trabeculoplasty (DWT) in Primary Open Angle Glaucoma (POAG) and Ocular Hypertension (OHT) Subjects

The primary purpose of this study is to investigate the safety and efficacy of bilateral DWT in subjects with POAG or OHT compared to active and sham controls. The secondary purpose of the study is to investigate the durability, repeatability, and does response of the same.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
35

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

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

  • Philippines
      • Makati City, Philippines
        • Asian Eye Institute
      • Makati City, Philippines
        • Pacific Eye and Laser Institute

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female subjects, 18 years or older.

  • Subjects diagnosed with either POAG or OHT in both eyes. The diagnosis of POAG must include evidence of:

    1. Optic disc or retinal nerve fiber layer structural abnormalities (substantiated by OCT); and/or
    2. Visual field abnormality (substantiated with the Humphrey automated perimeter using the SITA Standard 24-2 testing algorithm. Mean deviation (MD) score must be -15dB < MD < 0dB.

  • Subjects with a 9:00AM (+/- 1 hour) median IOP in both eyes that is:

    1. Greater than or equal to 18mmHg at the Screening Visit or have documented history of IOP being greater than or equal to 22mmHg;
    2. Greater than or equal to 22mmHg at both Eligibility Visits.
  • Subjects currently using one or more topical medications to control their IOP.
  • Subjects able and willing to comply with the protocol, including randomization assignment and all follow-up visits.
  • Subjects that sign the informed consent form.

Exclusion Criteria:

  • Subjects who are pregnant, lactating, or planning to become pregnant during the course of the study.
  • Subjects with any form of glaucoma other than primary open-angle glaucoma (e.g., pseudo exfoliation or pigmentary glaucoma).
  • Other exclusion criteria apply

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: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: DWT device dose A
Deep Wave Trabeculoplasty (DWT) dose A (10 second spot treatments).
Device: DWT device dose A
Deep Wave Trabeculoplasty (DWT) is an investigational device intended to reduce IOP in patients with POAG or OHT. The DWT device applies focal mechanical oscillation (low amplitude, sonic frequency) to the surface of the eye proximate the limbal region and anterior to the trabecular meshwork (TM). Mechanical oscillation of the TM by the DWT device is believed to initiate a physiological cascade to restore function of the TM, increase the outflow of aqueous humor and thereby decrease the IOP. DWT involves 24 spot treatments applied around the limbal region on the ocular surface. Dose A refers to 10 second spot treatments.
ACTIVE_COMPARATOR: Ellex Tango SLT machine
Selective Laser Trabeculoplasty (SLT)
Device: Ellex Tango SLT machine
Laser trabeculoplasty is the application of a laser beam to burn areas of the trabecular meshwork, located near the base of the iris, to increase fluid outflow. Selective laser trabeculoplasty (SLT) uses a Nd:YAG laser to target specific cells within the trabecular meshwork and create thermal damage.
SHAM_COMPARATOR: DWT Sham
Deep Wave Trabeculoplasty (DWT) but device not applied to ocular surface.
Device: DWT sham
Same as DWT device dose A except device not applied to ocular surface.
EXPERIMENTAL: DWT device dose B
Deep Wave Trabeculoplasty (DWT) dose B (20 second spot treatments).
Device: DWT device dose B
Same as DWT device dose A except 20 second spot treatments.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Percent decrease in IOP and change in dependence on IOP-lowering medications from baseline
Time Frame: 6 months
6 months
Intra-procedural and post-procedural adverse events
Time Frame: 6 months
6 months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
OcuTherix, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Harvey Siy Uy, MD, Pacific Eye and Laser Institute
  • Principal Investigator: Edgar U. Leuenberger, MD, Asian Eye Institute
  • Principal Investigator: Maria I Yap-Veloso, MD, Asian Eye Institute

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2013

Primary Completion (ACTUAL)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2015

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 20, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 22, 2014

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 27, 2014

Study Record Updates

Last Update Posted (ACTUAL)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 4, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 3, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • DWT CIP 002

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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