ClinicalTrials.gg
Status unknownNCT04178863Updated Nov 26, 2019

CATS Tonometer IOP Reduction Latanoprost Verses Timolol

A Phase 4 interventional study of CATS Tonometer and Latanoprost in Glaucoma; Drugs, sponsored by Intuor Technologies, Inc.. Status unknown at 1 site in United States. Open to participants aged 18 Years to 101 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-11-26.

Sponsored by Intuor Technologies, Inc. · Phase 4, Interventional, and Diagnostic

The sponsor has not verified this record recently (last verified Nov 2019), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 1 year 4 months after the study started (first participant enrolled Jul 2018, registered Nov 2019).
Phase
Phase 4
Study type
Interventional
Enrollment
72
Allocation
Randomized
Ages
18 Years to 101 Years
Sex
All
01

Study summary

Topical Prostaglandin Analog vs Betablocker - Corneal Biomechanical Evaluation using CATS Tonometer Prism

Read the detailed description

This clinical trial is a prospective, controlled, study and will be performed at one clinical investigative site in Tucson Arizona1. The purpose of this study is to determine if the device, CATS tonometer prism, measures intraocular pressure significantly differently than the current standard of care tonometer prism (Goldmann) before and after institution of topical prostaglandin analogs (PGA) for glaucoma treatment. Fifty percent of patients will be randomly placed on topical beta blockers as a control. The difference PGAs and beta blockers would be a measurement of the amount of corneal biomechanical changes made due to the PGA controlled for the effect of IOP lowering by the beta -blocker group.

02

Conditions studied

  • Glaucoma; Drugs

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03

In context

Glaucoma

1,419 studies on the registry are indexed under Glaucoma; 223 are open to participants now.

This study's planned enrollment of 72 is above the median of 61 across 964 interventional studies indexed under Glaucoma.

Browse Glaucoma studies →

Lead sponsor

Intuor Technologies, Inc. is the lead sponsor of 7 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 101 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

    • Male and female patients, at least 18 years of age

      • Subject has a clear understanding and agrees to all the conditions of the form

Exclusion criteria

Exclusion Criteria:

  • Subjects shall be selected in accordance with the following exclusion criteria

    • Subject has undergone ocular surgery within the last 3 months
    • Uncontrolled systemic disease that in the opinion of the Investigator would put the subject's heath at risk
    • Pregnant or nursing women
    • Those who have had corneal surgery including corneal laser surgery
    • Microphthalmos
    • Buphthalmos
    • Severe Dry eyes
    • Lid squeezers - blepharospasm
    • Nystagmus
    • corneal or conjunctival infection.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 4
Primary purpose
Diagnostic
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
72 participants (estimated)

Study arms

  • Active comparator
    lataprost

    latanoprost use

    Device: CATS Tonometer

  • Active comparator
    timolol

    timolol group

    Device: CATS Tonometer · Drug: Latanoprost

Interventions

  • DeviceCATS Tonometer

    latanoprost vs. timolol

    Also known as: latanoprost v. timolol

  • latanoprost IOP reduction

06

What researchers measure

Primary outcomes

  1. IOP reduction

    Time frame: 1 month

07

Study locations

1 of 1 sites recruiting
  • Arizona Eye Consultants
    Tucson, Arizona 85710, United States
    Recruiting
08

References and documents

Publications

  • Radcliffe N, Berdahl J, Ibach M, Schweitzer J, Levine J, McCafferty S. Improved Efficacy of Topical Latanoprost 0.005% Demonstrated by Corneal Biomechanical Correcting Modified Goldmann Prism. Clin Ophthalmol. 2020 Aug 10;14:2245-2253. doi: 10.2147/OPTH.S264055. eCollection 2020. PubMed 32884231 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 26, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04178863
Lead sponsor
Intuor Technologies, Inc.
Responsible party
Sponsor
First posted
Nov 26, 2019
Start date
Jul 1, 2018
Primary completion
Dec 30, 2019 (estimated)
Completion
Dec 30, 2019 (estimated)
Last update
Nov 26, 2019

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Nov 2019. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Latanoprost

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