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PresbyopiaNCT03757039

Multifocal Visual Performance Study

A study testing Multifocal soft contact lenses and Progressive addition lens spectacles in people with Presbyopia, run by Alcon Research at 2 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this trial was to compare the functional visual performance of Precision Profile Multifocal (MF) contact lenses to Progressive Addition Lens (PAL) spectacles in a presbyopic population. Read more about this study

Who is it for?
Ages 38 to 58 years
Conditions the study is for
Presbyopia
What is being tested?
Multifocal soft contact lenses and Progressive addition lens spectacles
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
2 sitesin 2 countries
Study dates
16 Dec 2018to 6 Mar 2019
Phase
Interventional
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 38 to 58 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Normal eyes, other than correction for refractive error;
  • Habitual correction of either any multifocal contact lens with a maximum add of +2.00 Diopter (D), or progressive addition lens spectacles with a maximum add of +2.00 D;
  • Wears habitual correction at least 5 days per week and at least 6 hours per day.

Who cannot join

  • Monocular subjects;
  • Subjects fit with only one contact lens;
  • Known pregnancy or lactating;
  • History of or planned refractive surgery or irregular cornea in either eye.
  • Other protocol-specified inclusion and/or exclusion criteria may apply.

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

United States1 site
  • Alcon Investigative Site

    Houston, Texas, 77204-2020

Other trials in United States

United Kingdom1 site
  • Alcon Investigative Site

    Birmingham, B4 7ET

Other trials in United Kingdom

About this study

Official title: Multifocal Visual Performance Study - Seamless Transition With Precision Profile MF Lenses

The purpose of this trial was to compare the functional visual performance of Precision Profile Multifocal (MF) contact lenses to Progressive Addition Lens (PAL) spectacles in a presbyopic population.

Read the detailed description

Habitual contact lens wearers were randomized 1:1:1 to one of three commercially available multifocal contact lenses. Progressive addition lens wearers wore their habitual spectacles. Subjects were expected to attend 1 or 2 office visits. This study was terminated early by Alcon due to slow enrollment and inconsistency in measurement of the primary endpoint.

Conditions
Presbyopia
Being tested
Multifocal soft contact lenses, Progressive addition lens spectacles
Keywords
contact lenses, multifocal, spectacles, glasses, progressive, vision, eyes
Medical subject headings
Presbyopia

What participants receive

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

  • Multifocal soft contact lensesDevice

    Also called DAILIES TOTAL1® Multifocal contact lenses (DT1 MF), DAILIES® AquaComfort Plus® Multifocal contact lenses (DACP MF), AIR OPTIX® plus HydraGlyde® Multifocal contact lenses (AOHG MF)

    Commercially available contact lenses

  • Progressive addition lens spectaclesOther

    Also called PAL

    Per subject's habitual prescription

Study groups in NCT03757039
Study groupRoleWhat they receive
Multifocal Contact LensesExperimentalMultifocal soft contact lenses according to the subject's prescription and fitted using the Alcon multifocal fitting guide. Lenses were worn bilaterally (in both eyes) for up to 3 hours, 1 day only.
Receives: Device: Multifocal soft contact lenses
PAL SpectaclesActive comparatorProgressive addition lens spectacles according to the subject's habitual prescription, with testing up to 3 hours, 1 day only.
Receives: Other: Progressive addition lens spectacles

What is being measured

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

  1. Average Transition Time, Calculated From a Maximum of 3 Readings, Recorded in Seconds, During Alternate Viewing From Distance (4 m) to Intermediate (80 cm) and Vice Versa (Full Analysis Set)

    The subject was asked to read text at distance (4 meters) or intermediate (80 centimeters), followed immediately by text at the alternate viewing (intermediate or distance). The interval between when the subject stopped reading the first text and started reading the second text is defined as the transition time. Due to inconsistent measurement of the primary endpoint in this study, interpretation of the average transition times was compromised and the planned inferential analysis was not carried out.

    Measured: Day 1, after up to 3 hours of wear

Timeline

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

  1. First posted28 Nov 2018
  2. Study start16 Dec 2018
  3. Primary completion6 Mar 2019
  4. Study completion6 Mar 2019

Why it stopped: Management Decision

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
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03757039
Sponsor's protocol ID
CLT792-P001
Status last verified
Mar 2020
First submitted
27 Nov 2018
Last updated
25 Mar 2020
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Multifocal soft contact lenses and Progressive addition lens spectacles in people with Presbyopia, run by Alcon Research at 2 sites in 2 countries.

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 3 inclusion and 5 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: stopped early, as of the sponsor's last update on 25 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States, 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?

Yes. Results are posted in the registry (first posted 25 Mar 2020). 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?

Average Transition Time, Calculated From a Maximum of 3 Readings, Recorded in Seconds, During Alternate Viewing From Distance (4 m) to Intermediate (80 cm) and Vice Versa (Full Analysis Set) (time frame: Day 1, after up to 3 hours of wear). 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 25 Mar 2020.

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