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Open Angle GlaucomaNCT03210571

Clinical Investigation of the eyeWatch Glaucoma Drainage Device

A study testing eyeWatch system in people with Open Angle Glaucoma, run by Rheon Medical SA at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study aims to test a new medical device, called the eyeWatch, used in filtering surgery for the treatment of glaucoma. This medical device has the following property: it allows better control of intraocular pressure in the initial postoperative phase by adjusting aqueous flow going through the device. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Open Angle Glaucoma
What is being tested?
eyeWatch system
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
1 siteUnited Kingdom
Study dates
1 May 2018to 27 Oct 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient must be 18 years of age or older.
  • Patient shall suffer from primary open angle glaucoma, pseudo-exfoliative glaucoma, or refractory POAG or PEXG after previous failed filtering surgery, in the study eye. Diagnosis is based on glaucomatous optic neuropathy, Shaffer angle greater than 2 as seen on gonioscopy, and visual field defect attributed to glaucoma.
  • Eye to be treated shall be phakic or pseudophakic with no other active ocular disease or disorder except for incipiens cataract. Prior ophthalmic surgery in the study eye shall have been performed more than 3 months before enrollment in this study.
  • Patient condition is indicated for primary and secondary filtration surgery.
  • Presence of elevated intraocular pressure defined as an intraocular corrected pressure (IOP) > 20 mmHg in the study eye, under maximally tolerated medications. The IOP level shall be obtained on 2 consecutive measurements (not taken on the same day) prior to surgery.
  • Optic neuropathy is exclusively attributed to glaucoma.
  • Patient agreed to sign the written inform consent prior to entering into the investigation.
  • Patient is able and willing to complete post-operative follow-up requirements.

Who cannot join

  • Diagnosis of neovascular glaucoma, congenital glaucoma.
  • History of previous intraocular surgery in the study eye referring to but not limited to extraocular muscles (strabismus), corneal transplant, retinal surgery.
  • Proliferative or severe non-proliferative retinopathy in either eye.
  • Congenital anomaly of the anterior chamber angle in the study eye.
  • Optic neuropathy other than glaucoma in the study eye.
  • Patient with retinal vein occlusion in the study eye.
Show all 14Show fewer
  • Patient with retinal artery occlusion in the study eye.
  • Patient with corneal opacifications, endotheliopathy, or irregularities that may interfere with the optic nerve evaluation or the IOP measurements in the study eye.
  • Patient with a history of severe eye trauma in the study eye.
  • Patient with ocular malformations such as microphthalmia in the study eye.
  • Patient with concurrent inflammatory/infective eye disorder in the study eye.
  • Patient with severe systemic disease or disabling conditions such as chronic renal failure, post organ transplants.
  • Patient participating in another clinical trial or having participated in another clinical trial less than 3 months prior to entering into the investigation.
  • Patient is pregnant, breast-feeding or unable to make the decision to participate in a clinical investigation (e.g. mentally ill person, mentally handicapped person)

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • St. Thomas' Hospital

    London, SE1 7EH

Other trials in United Kingdom

About this study

This study aims to test a new medical device, called the eyeWatch, used in filtering surgery for the treatment of glaucoma. This medical device has the following property: it allows better control of intraocular pressure in the initial postoperative phase by adjusting aqueous flow going through the device. The target criteria for the study are defined as: keeping intraocular pressure in target range; reducing the number of anti-glaucoma drugs; evaluating the number and type of postoperative complications. So far, this device has been already tested on 20 patients in Switzerland.

Being tested
eyeWatch system
Medical subject headings
Glaucoma, Open-Angle

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • eyeWatch systemDevice

    Also called Adjustable glaucoma drainage device (AGDD)

    The eyeWatch device is composed of an AGDD, a control unit and a draining plate

Study groups in NCT03210571
Study groupRoleWhat they receive
eyeWatch deviceExperimentalNot described
Receives: Device: eyeWatch system

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number and type of serious adverse device events

    Demonstration of safety. The number and type of serious adverse device event per patient will be measured.

    Results of biomicroscopy, gonioscopy, pachymetry visual field and endothelial count will be compared to baseline.

    Measured: Follow-up: day 1, Week 1, week 2, month 1, month 2, month 3, month 6, month 12 compared to baseline

  2. Effectiveness in reducing the intraocular pressure

    Demonstration of the performance. The intraocular pressure (IOP in mmHg) will be measured at different time points to show the effective reduction compared to baseline. IOP reduced by ≥ 20% or IOP < 21 mmHg, and no IOP < 5 mmHg on two consecutive visits after 1 month (included)

    Measured: Follow-up: day 1, Week 1, week 2, month 1, month 2, month 3, month 6, month 12 compared to baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Jul 2017
  2. Study start1 May 2018
  3. Primary completion27 Oct 2020
  4. Study completion27 Oct 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03210571
Sponsor's protocol ID
3007
Status last verified
Oct 2021
First submitted
1 Jul 2017
Last updated
28 Oct 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: There is no plan

Publications

  • Villamarin A, Roy S, Bigler S, Stergiopulos N. A new adjustable glaucoma drainage device. Invest Ophthalmol Vis Sci. 2014 Mar 25;55(3):1848-52. doi: 10.1167/iovs.13-12626.

    PubMed 24557347

Questions about this trial

What is this clinical trial studying?

A study testing eyeWatch system in people with Open Angle Glaucoma, run by Rheon Medical SA at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number and type of serious adverse device events (time frame: Follow-up: day 1, Week 1, week 2, month 1, month 2, month 3, month 6, month 12 compared to baseline). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03210571, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Oct 2021.

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