AzTrials
AzTrials

Healthy ParticipantsPhase 4NCT01325324

Comparison of Different Portable Tonometers (Icare Pro, TONO-Pen AVIA, Perkins Tonometer, PASCAL Hand Held Dynamic Contour Tonometer)

A Phase 4 study testing measurement of intraocular pressure in people with Healthy Participants, run by University of Zurich at 1 site in Switzerland.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

In different cases intraocular pressure (IOP) have to measured in lying position. Therefore a lot of portable tonometers have been established. The Icare Pro is a new tonometer on the market that allows faster and more comfortable IOP-measurements. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Healthy Participants
What is being tested?
measurement of intraocular pressure
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
1 siteSwitzerland
Study dates
Mar 2011to Dec 2015
Phase
Phase 4
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

  • healthy patients of at least 18 years of age or above

Who cannot join

  • diagnosis of glaucoma or other optic neuropathies
  • corneal disorder that make IOP measurement impossible

Trial locations and contacts

1 site in 1 country.

Switzerland1 site
  • University Hospital Zurich, Ophthalmic Clinic

    Zurich, Canton of Zurich, 8091

Other trials in Switzerland

About this study

In different cases intraocular pressure (IOP) have to measured in lying position. Therefore a lot of portable tonometers have been established. The Icare Pro is a new tonometer on the market that allows faster and more comfortable IOP-measurements. No local anesthesia is needed, what is a major advantage for the patients. In this study the investigators want to evaluate if IOP measurements with Icare Pro Tonometer are as reliable as they are with other established portable tonometers (Perkins, TONO-Pen and hand held-Dynamic Contour Tonometer).

  • Trial with medical device
Being tested
measurement of intraocular pressure

What participants receive

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

  • measurement of intraocular pressureDevice

    Also called Icare Pro (Icare Finland Oy, Espoo, Finland), TONO-Pen AVIA (Reichert Terchnologies Inc., Depew, NY; USA, Perkins Tonometer (Haag-Streit AG, Könitz, Switzerland), PASCAL hand helt-Dynamic Contour Tonometer (Ziemer Ophthalmic Systems AG, Port, Switzerland)

    Intraocular pressure will be measured with the following devices (each 2 times)at the first and only study visit

Study groups in NCT01325324
Study groupRoleWhat they receive
Study groupOtherStudy group
Receives: Device: measurement of intraocular pressure

What is being measured

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

  1. intraocular pressure

    the intraocular pressure will be measured at the first and only study visit (Visit 1, day 0)

    Measured: Study Visit 1

Timeline

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

  1. First posted29 Mar 2011 (estimated)
  2. Study startMar 2011
  3. Primary completionDec 2015 (estimated)
  4. Study completionDec 2015 (estimated)

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 4
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
25 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01325324
Sponsor's protocol ID
portable-Tono-Study
Status last verified
Dec 2014
First submitted
14 Mar 2011
Last updated
6 Jan 2015
Results posted
No
Data monitoring committee
No

Publications

  • Schweier C, Hanson JV, Funk J, Toteberg-Harms M. Repeatability of intraocular pressure measurements with Icare PRO rebound, Tono-Pen AVIA, and Goldmann tonometers in sitting and reclining positions. BMC Ophthalmol. 2013 Sep 5;13:44. doi: 10.1186/1471-2415-13-44.

    PubMed 24006952

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing measurement of intraocular pressure in people with Healthy Participants, run by University of Zurich at 1 site in Switzerland.

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 1 inclusion and 2 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: status not confirmed, as of the sponsor's last update on 6 Jan 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 Switzerland. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

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?

intraocular pressure (time frame: Study Visit 1). 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 NCT01325324, 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 6 Jan 2015.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in
Clinical Trial NCT01325324 | AzTrials