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Dry Eye SyndromePhase 2/3NCT01339936

Evaluation of the Effect of Repeated Usage on the Tear Film Characteristics of an Investigational Eye Drop in Dry Eye Sufferers

A Phase 2/3 study testing Carboxymethylcellulose sodium, glycerin and polysorbate 80 in people with Dry Eye Syndrome, run by Optometric Technology Group Ltd 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

The main objectives of the investigation will be to assess the effect of the repeated usage of an investigational eye drop on the tear film characteristics of dry eye sufferers and demonstrate the benefit of this eye drops for dry eye sufferers. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Dry Eye Syndrome
What is being tested?
Carboxymethylcellulose sodium, glycerin and polysorbate 80
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteUnited Kingdom
Study dates
Mar 2011to May 2012
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • Mild or greater dry eye symptoms.
  • Evidence of evaporative dry eye

Who cannot join

  • Known allergy or sensitivity to the study product(s) or its components
  • Current contact lens wearer
  • Systemic or ocular allergies
  • Use of systemic medication which might have ocular side effects.
  • Any ocular infection.
  • Use of ocular medication.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • OTG Research & Consultancy

    London, England, SW1E 6AU

Other trials in United Kingdom

About this study

The main objectives of the investigation will be to assess the effect of the repeated usage of an investigational eye drop on the tear film characteristics of dry eye sufferers and demonstrate the benefit of this eye drops for dry eye sufferers.

Being tested
Carboxymethylcellulose sodium, glycerin and polysorbate 80
Medical subject headings
Dry Eye Syndromes

What participants receive

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

  • Carboxymethylcellulose sodium, glycerin and polysorbate 80Device

    1 drop in each eye three times a day for a period of 30 (± 4) days

Study groups in NCT01339936
Study groupRoleWhat they receive
Investigational eye dropExperimentalFormulation 1: Carboxymethylcellulose sodium, glycerin and polysorbate 80 based eye drops formulated for the relief of ocular surface irritation and symptoms of dryness
Receives: Device: Carboxymethylcellulose sodium, glycerin and polysorbate 80

What is being measured

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

  1. Tear Film Evaporation Rate

    The rate of evaporation of the tears from the ocular surface was measured. To do so the participant was required to wear a sealed goggle over the eye, which served to isolate the air surrounding the ocular surface. The temperature and humidity were measured within the sealed goggle during closed eye and open eye situations. The evaporation from the ocular surface was calculated by taking the difference between the evaporation rate of the skin taken during the closed eye measurement and the evaporation rate taken during the open eye measurement. The rate of evaporation was measured in 10^-7 g/cm^2 /s and recorded for relative humidity of 25% to 35%.

    Measured: after 30 days of eyedrop usage

Secondary outcomes (2)
  1. Tear Break Up Time

    The tear film break-up-time (BUT) is the time elapsed between eye opening after a blink, and the appearance of the first dark spot within the tear film when observed with a wide diffuse light source of the Tearscope. This measurement is indicative of the tear film stability. Three independent measurements were recorded in each case and the median value over the three measurements calculated. The latter value constituted the secondary endpoint used in the analysis.

    Measured: after 30 days of eyedrop usage

  2. Ocular Surface Disease Index Score

    The OSDI is a 12-item patient-reported outcomes questionnaire designed to assess the range of ocular surface symptoms, their severity, and their impact on the patient's ability to function.

    The OSDI items are scored on a 0 to 4 Likert-type scale, where 0 = None of the time, 1 = Some of the time, 2 = Half of the time, 3 = Most of the time, and 4 = All of the time. Using individual item responses, an overall OSDI score is calculated. The overall OSDI score ranges from 0 to 100, where a score of 100 corresponds to complete disability while a score of 0 corresponds to no disability.

    Measured: after 30 days of eye drop usage

Timeline

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

  1. First posted21 Apr 2011 (estimated)
  2. Study startMar 2011
  3. Primary completionAug 2011
  4. Study completionMay 2012

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 2/3
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01339936
Sponsor's protocol ID
AG9965-005 ID 10-12
Status last verified
Sep 2013
First submitted
19 Apr 2011
Last updated
28 Nov 2013
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Carboxymethylcellulose sodium, glycerin and polysorbate 80 in people with Dry Eye Syndrome, run by Optometric Technology Group Ltd 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 2 inclusion and 6 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 Nov 2013. 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.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Nov 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Tear Film Evaporation Rate (time frame: after 30 days of eyedrop usage). 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 28 Nov 2013.

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