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CataractNCT01257217

A Comparison of Visual Function After Bilateral Implantation of Presbyopia-Correcting Intraocular Lenses (IOLs)

A study testing AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1, AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TT and Acri.LISA® 366D IOL in people with Cataract, run by Alcon Research.

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 purpose of this study is to evaluate visual and refractive parameters in a series of subjects bilaterally implanted with presbyopia-correcting intraocular lenses (IOLs) during cataract surgery. Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Cataract
What is being tested?
AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1, AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TT and Acri.LISA® 366D IOL
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
31 participants
Where
No sites listed yet
Study dates
Nov 2010to Jun 2011
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 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Sign informed consent;
  • Able to attend postoperative examinations per protocol schedule;
  • Diagnosed with bilateral cataracts;
  • Planned cataract removal by phacoemulsification with implantation of an intraocular lens (IOL);
  • Preoperative astigmatism ≤ 2.5 diopter;
  • Good ocular health, with the exception of cataracts;
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  • Free of disease(s)/condition(s) listed in the "Caution" section of the AcrySof IQ and Acri.LISA package inserts;
  • Able to undergo second eye surgery within one month of the first eye surgery;
  • Other protocol-defined inclusion criteria may apply.

Who cannot join

  • Previous corneal surgery;
  • Planned multiple procedures during cataract/IOL implantation surgery;
  • Any ocular disease and/or condition that may compromise study results;
  • Pregnant or planning pregnancy during course of study;
  • History of corneal disease (e.g., herpes simplex, herpes zoster keratitis, etc.)
  • Diabetic retinopathy;
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  • Macular degeneration;
  • History of retinal detachment;
  • Other protocol-defined exclusion criteria may apply.

About this study

Official title: A Randomized, Subject-Masked Comparison of Visual Function After Bilateral Implantation of Presbyopia-Correcting IOLs

The purpose of this study is to evaluate visual and refractive parameters in a series of subjects bilaterally implanted with presbyopia-correcting intraocular lenses (IOLs) during cataract surgery.

Read the detailed description

Each subject completed a preoperative examination of both eyes, implantation of IOL at the operative visit for each eye, and up to 4 postoperative visits (each eye examined at Day 1-2, with binocular visits at Month 1 and Month 3 after the second implantation). The second implantation occurred within 30 days of the first.

Conditions
Cataract
Being tested
AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1, AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TT, Acri.LISA® 366D IOL, Acri.LISA® 466TD Toric IOL
Keywords
Intraocular Lens, Presbyopia, multifocal
Medical subject headings
Cataract, Presbyopia

What participants receive

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

  • AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1Device

    Multifocal IOL implanted for long-term use over the lifetime of the cataract patient

  • AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TTDevice

    Also called Models SND1T2, SND1T3, SND1T4, SND1T5, SND1T6

    Multifocal IOL with extended secondary focal point and astigmatism correction implanted for long-term use over the lifetime of the cataract patient

  • Acri.LISA® 366D IOLDevice

    Aspheric diffractive IOL with +3.75 D add power implanted for long-term use over the lifetime of the cataract patient

  • Acri.LISA® 466TD Toric IOLDevice

    Aspheric diffractive IOL with +3.75 D add power and astigmatism correction implanted for long-term use over the lifetime of the cataract patient

Study groups in NCT01257217
Study groupRoleWhat they receive
ReSTOR +3ExperimentalAcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1 or AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TT, lens assignment and model determined by preoperative keratometric astigmatism, bilateral implantation
Receives: Device: AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1; Device: AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TT
Acri.LISAActive comparatorAcri.LISA® 366D IOL or Acri.LISA® 466TD Toric IOL, lens assignment determined by preoperative keratometric astigmatism, bilateral implantation
Receives: Device: Acri.LISA® 366D IOL; Device: Acri.LISA® 466TD Toric IOL

What is being measured

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

  1. Mean Binocular Defocus VA at Month 3

    Defocus VA (an indicator of the expected range of vision with a presbyopia-correcting IOL) was tested binocularly with the participant's best spectacle correction using a chart. Lenses of different spherical powers were placed in front of the eyes to produce varying levels of defocus. The VA at each spherical power was measured in logarithm of the minimum angle of resolution (logMAR), with 0.1 logMAR increment corresponding to 5 letters, or 1 line, on an ETDRS chart. A lower numeric value represents better visual acuity.

    Measured: Month 3 from second eye implantation

Secondary outcomes (5)
  1. Best Corrected Visual Acuity (BCVA) Across a Range of Distances at Month 3

    Visual acuity (VA) was tested binocularly (both eyes together) with correction in place if needed across a range of distances under well-lit conditions using Early Treatment of Diabetic Retinopathy Study (ETDRS) charts. VA was measured in logarithm of the minimum angle of resolution (logMAR), with 0.1 logMAR increment corresponding to 5 letters, or 1 line, on an ETDRS chart. A lower numeric value represents better visual acuity.

    Measured: Month 3 from second eye implantation

  2. Uncorrected Visual Acuity Across a Range of Distances at Month 3

    VA was tested binocularly unaided across a range of distances under well-lit conditions using Early Treatment of Diabetic Retinopathy Study (ETDRS) charts. VA was measured in logarithm of the minimum angle of resolution (logMAR), with 0.1 logMAR increment corresponding to 5 letters, or 1 line, on an ETDRS chart. A lower numeric value represents better visual acuity.

    Measured: Month 3 from second eye implantation

  3. Mean Refractive Spherical Equivalent at Month 3

    A manifest refraction (vision check) was performed using a 100% contrast ETDRS chart under well-lit conditions. Results were documented for sphere, cylinder and axis readings. The refractive spherical equivalent was calculated according to the formula: sphere + ½ cylinder power. Both eyes contributed to the mean.

    Measured: Month 3 from second eye implantation

  4. Mean Radner Reading Speed

    Reading performance was measured using the Radner Reading Chart with no correction (without) and with best distance corrective aids (with). Reading speed was measured in words per minute.

    Measured: Month 3 from second eye implantation

  5. Patient Reported Outcomes at Month 3

    The Visual Task Difficulty Assessment (VISTAS) questionnaire was completed by the subject to assess difficulty in completing everyday tasks that depend on good vision. Tasks were rated using a 1 to 5 point scale, where 1 = no difficulty; 2 = minor difficulty; 3 = moderate difficulty; 4 = major difficulty; 5 = cannot accomplish. Individual scores for each task were averaged to obtain the overall score for each vision type/function. Near vision was defined as less than 50 cm; intermediate vision as 50 cm to 1 m; extended intermediate vision as 90 cm to 4 m; and distant vision as more than 4 m.

    Measured: Month 3 from second eye implantation

Timeline

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

  1. First posted9 Dec 2010 (estimated)
  2. Study startNov 2010
  3. Primary completionJun 2011
  4. Study completionJun 2011

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
Single blind
Who is masked
Participant
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01257217
Sponsor's protocol ID
M09-051
Status last verified
Mar 2017
First submitted
8 Dec 2010
Last updated
2 Jul 2018
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing AcrySof® IQ ReSTOR® +3.0 D Multifocal IOL Model SN6AD1, AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL Model SND1TT and Acri.LISA® 366D IOL in people with Cataract, run by Alcon Research.

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 9 inclusion and 9 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 2 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

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 20 Apr 2017). 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?

Mean Binocular Defocus VA at Month 3 (time frame: Month 3 from second eye implantation). 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 2 Jul 2018.

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