AzTrials
AzTrials

Primary Open Angle GlaucomaNCT01769521

Relationship Between 24-hour IOP Pattern and the 24-hour Blood Pressure Pattern in Patients With POAG

A study testing Sensimed Triggerfish® in people with Primary Open Angle Glaucoma and Normal Tension Glaucoma, run by Sensimed AG at 1 site in Poland.

Completed

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

Official record
Search all trials

Trial summary

Interplay between the increasing IOP and decreasing blood pressure (BP) during the 24-hour period, especially in the nocturnal period, may lead to insufficient perfusion pressure of the optic nerve and contribute to the glaucomatous damage in adjunct to the antero-posterior vectorial mechanical impact on the lamina… Read more about this study

Who is it for?
Ages 18 to 99 years
What is being tested?
Sensimed Triggerfish®
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 sitePoland
Study dates
Oct 2012to Apr 2013
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 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of POAG, including progressing normal tension glaucoma (NTG) based on recent or recurrent disc haemorrhage
  • No anti-glaucomatous drug treatment or washed-out for a period of 4 weeks prior to SD0 and absent throughout the study
  • Aged more than 18 years, of either sex
  • Not more than 4 diopters spherical equivalent on both eyes
  • Not more than 2 diopters cylinder equivalent on both eyes
  • Have given written informed consent, prior to pre-study screening

Who cannot join

  • Patients with history of ocular surgery within the last 3 months
  • Corneal or conjunctival abnormality hindering contact lens adaptation
  • Severe dry eye
  • Secondary forms of OAG
  • Patients with systemic hypertension
  • Patients with allergy to corneal anesthetic
Show all 10Show fewer
  • Patients with contraindications for silicone contact lens wear
  • Wear of full frame metallic glasses during Triggerfish® monitoring
  • Patients not able to understand the character and individual consequences of the investigation
  • Simultaneous participation in other clinical research

Trial locations and contacts

1 site in 1 country.

Poland1 site
  • Przemienienia Pańskiego Hospital, Poznan University of Medical Sciences Karol Marcinkowski

    Poznan, 61-848

Other trials in Poland

About this study

Official title: A Single Center, Prospective, Open Label Study Assessing the Relationship Between the 24-hour Intraocular Pressure Pattern as Determined by Sensimed Triggerfish® and the 24-hour Blood Pressure Pattern in Patients With Primary Open Angle Glaucoma

Interplay between the increasing IOP and decreasing blood pressure (BP) during the 24-hour period, especially in the nocturnal period, may lead to insufficient perfusion pressure of the optic nerve and contribute to the glaucomatous damage in adjunct to the antero-posterior vectorial mechanical impact on the lamina cribrosa, the translaminar pressure. Patients with progressive VF loss showed greater nocturnal BP dips than patients with stable VF. Reduced mean intraocular perfusion pressure (IOPP) was significantly associated with the extent of glaucomatous damage. How the nycthemeral IOP fluctuation influences glaucoma progression has not been studied in a prospective manner and remains to be elucidated.

The purpose of this study is to assess the relationship between the 24-hour IOP fluctuation pattern and the 24-hour BP pattern in patients with primary open angle glaucoma (POAG). IOP fluctuations will be monitored with SENSIMED Triggerfish®, a portable investigational device using a contact lens sensor that monitors the IOP fluctuation continuously over 24-hours.

Being tested
Sensimed Triggerfish®
Keywords
Glaucoma, IOP, Blood pressure, ECG
Medical subject headings
Glaucoma, Open-Angle, Low Tension Glaucoma, Glaucoma

What participants receive

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

  • Sensimed Triggerfish®Device

    Portable investigational device using a contact lens sensor that monitors the IOP fluctuation continuously over 24-hours

Study groups in NCT01769521
Study groupRoleWhat they receive
TriggerfishExperimentalDevice: Sensimed Triggerfish
Receives: Device: Sensimed Triggerfish®

What is being measured

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

  1. To evaluate the relationship between the 24-hour IOP fluctuations as monitored by Triggerfish® and the 24-hour blood pressure pattern in patients with POAG.

    Measured: 24-hour

Secondary outcomes (5)
  1. Nycthemeral IOP pattern

    The nycthemeral IOP fluctuation pattern, will be derived from the Triggerfish®, over a 24-hour period. Curves will be plotted for the IOP fluctuation.

    Measured: 24-hour

  2. Relationship between the nocturnal IOP fluctuation pattern and the diurnal fluctuation pattern (office hours)

    The nocturnal IOP fluctuation pattern will be compared to that of the diurnal fluctuation pattern (office hours). The diurnal IOP fluctuation pattern will be compared to the tonometric IOP curve concomitantly assessed in the contralateral eye.

    Measured: 24 hours

  3. Relationship between intraocular pulsation amplitude and BP

    The relationship between intraocular pulsation amplitude and BP will be determined by the determination of the mean intraocular Triggerfish output (IOT), SIOT and DIOT and correlated to the mean BP, SBP and DBP.

    Measured: 24-hours

  4. Relationship between the intraocular pulsation frequency and heart rate (HR)

    The relationship between the intraocular pulsation frequency as determined by Triggerfish® will be correlated with the heart frequency as determined by ECG

    Measured: 24-hours

  5. Assess safety and tolerability

    AEs and SAEs will be collected throughout the duration of the study

    Measured: 24-hours

Timeline

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

  1. First posted16 Jan 2013 (estimated)
  2. Study startOct 2012
  3. Primary completionApr 2013
  4. Study completionApr 2013

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
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01769521
Sponsor's protocol ID
TF-1011
Status last verified
Nov 2015
First submitted
10 Jan 2013
Last updated
17 Nov 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Sensimed Triggerfish® in people with Primary Open Angle Glaucoma and Normal Tension Glaucoma, run by Sensimed AG at 1 site in Poland.

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 6 inclusion and 10 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 17 Nov 2015. 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 Poland. 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?

To evaluate the relationship between the 24-hour IOP fluctuations as monitored by Triggerfish® and the 24-hour blood pressure pattern in patients with POAG. (time frame: 24-hour). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 17 Nov 2015.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in