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Cataract SenileNCT06264232

AT ELANA 841P Posterior Chamber Intraocular Lens for Correction of Aphakia Following Cataract Removal

A study testing Cataract Surgery in people with Cataract Senile, run by Carl Zeiss Meditec, Inc. at 14 sites in United States.

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 goal of this clinical trial is to demonstrate the safety and effectiveness of the full visual range AT ELANA 841P IOL when used to treat adult patients having cataract surgery. Subjects will be randomly selected to receive a pair of IOLs, either the AT ELANA 841P or CT LUCIA 621P lens design. Read more about this study

Who is it for?
Ages 22 to 100 years
Conditions the study is for
Cataract Senile
What is being tested?
Cataract Surgery
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
284 participants
Where
14 sitesUnited States
Study dates
12 Jul 2024to 1 Dec 2025
Phase
Interventional
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 22 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults, 22 years of age or older at the time of study enrollment
  • Bilateral cataractous lens changes as demonstrated by best corrected distance visual acuity of 0.30 logMAR (20/40) or worse either with or without a glare source present (e.g., Brightness Acuity Tester) for which phacoemulsification cataract extraction and posterior chamber IOL implantation is indicated
  • Best corrected distance visual acuity projected to be better than 0.20 logMAR (better than 20/30) after cataract removal and IOL implantation
  • Preoperative keratometric (corneal) astigmatism of 1.00 D or less (≤1.00 D) in both operative eyes
  • Clear intraocular media other than cataract
  • Contact lens wear is to be discontinued two (2) weeks for soft contact lenses both daily and extended wear; and ≥ 30 days for rigid gas permeable lenses prior to preoperative biometry and keratometry testing.
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  • Calculated lens power within the available range
  • Subject is willing to sign the IRB-approved informed consent form
  • Subject is willing, able and has sufficient cognitive awareness to comply with examination procedures and schedule for follow-up visits

Who cannot join

  • Presence of systemic disease that could increase the operative risk or confound the outcome, including but not limited to diabetes mellitus, active cancer treatment, mental illness, dementia, immunocompromised, connective tissue disease, clinically significant atopic disease, etc.
  • Ocular condition that may predispose for future complications, including but not limited to dry eye syndromes or symptoms, anterior segment pathology, glaucoma (uncontrolled despite intake of medication), history of cystoid macular edema, macular degeneration as confirmed by clinical examination and adjunct testing (e.g., OCT, FA)
  • Clinically significant corneal abnormalities, including corneal dystrophy (epithelial, stromal or endothelial dystrophy), irregularity, inflammation or edema; conditions including but not limited to active/inactive keratitis, keratoconjunctivitis, kerato uveitis, keratopathy, keratectasia
  • Previous intraocular or corneal surgery that might confound the outcome of the investigation or increase the risk to the subject, including corneal transplants, retinal detachment, glaucoma surgeries, refractive laser procedures including but not limited to LASIK, limbal relaxing incision, Small Incision Lenticule Extraction (SMILE) etc.
  • Use of or history of use of systemic medications with significant ocular side effects or any medications that could confound the outcome or increase subject risk (e.g., Tamsulosin Hydrochloride [Flomax] or other medications including anticholinergics or alpha-adrenergic blocking agents with similar side effects [e.g., small pupil/floppy iris syndrome], antimetabolites, etc.)
  • Currently taking systemic steroids and/or planned on taking systemic steroids prior to operative visit and during the course of the investigation.
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  • Subjects with diagnosed degenerative visual disorders, including but not limited to macular degeneration or other retinal disorders (such as diabetic retinopathy, diabetic macular edema, retinal detachment) that are predicted to confound outcomes or to cause future acuity loss to 0.20 logMAR or worse.
  • Subjects with conditions that increase the risk of zonular rupture (e.g., pseudoexfoliation syndrome, Marfan's syndrome) during cataract extraction procedure that may affect the postoperative centration or tilt of the IOL
  • Expected concomitant ocular procedure during cataract surgery or within the next 12 months (e.g., glaucoma surgery including implantation of MIGS, astigmatic correction surgery, penetrating keratoplasty [PK], laser-assisted in situ keratomileusis, SMILE etc.)
  • Subjects who are expected to require retinal laser treatment within the next 12 months
  • History of amblyopia or monofixation syndrome with poor stereoscopic vision
  • Rubella, congenital, traumatic or complicated cataracts
  • History of or current anterior or posterior segment inflammation, including but not limited to iritis or uveitis
  • Microphthalmos or macrophthalmos
  • Iris defects (e.g., aniridia)
  • Optic nerve atrophy
  • Keratoconus or Irregular astigmatism, as determined by topography
  • Inability to perform keratometry, topography or biometry (including but not limited to cataract density, subject unable to focus for longer time etc.) or subjects with unstable keratometry, topography or biometry measurements
  • Pathologic miosis caused by anterior segment pathology in the study eye (e.g., chronic uveitis, iritis, rubeosis iridis, neurological conditions such as multiple sclerosis, Argyle Robertson's pupil, acquired or congenital Horner´s syndrome, etc.)
  • Pupil diameter less than 6 mm when fully dilated
  • Pregnant, lactating at time of enrollment, or has another condition with associated fluctuation of hormones that could lead to refractive changes
  • Subject whose freedom is impaired by administrative or legal order
  • Concurrent participation in another drug or device investigation that could confound the outcome of this investigation
  • Subjects unable to achieve keratometry stability after discontinuing contact lens wear
  • Gonioscopic abnormalities

Trial locations and contacts

14 sites in 1 country.

14 sites in 1 country

United States14 sites
  • Beverly Hills Institute of Ophthalmology

    Beverly Hills, California, 90210

  • Chu Vision Institute

    Bloomington, Minnesota, 55420

  • Cleveland Eye Clinic

    Brecksville, Ohio, 44141

  • Cape Coral Eye Center

    Cape Coral, Florida, 33904

  • Whitsett Vision Group

    Houston, Texas, 77055

  • Texas Eye & Laser

    Hurst, Texas, 76054

  • Eye Centers of Racine & Kenosha

    Kenosha, Wisconsin, 53142

  • Carolina Eyecare Physicians, LLC

    Mt. Pleasant, South Carolina, 29464

  • Mitchell C Shultz MD/Shultz Chang Vision

    Northridge, California, 91325

  • Vance Thompson Vision-Nebraska

    Omaha, Nebraska, 68137

  • Coastal Vision Medical Group

    Orange, California, 92868

  • PNV Clinical Research

    San Antonio, Texas, 78229

  • Vance Thompson Vision-South Dakota

    Sioux Falls, South Dakota, 57108

  • Ophthalmology Consultants of St Louis

    St Louis, Missouri, 63131

Other trials in United States

About this study

Official title: A Multi-center, Prospective, Randomized, Controlled Clinical Trial to Demonstrate the Safety and Effectiveness of the Full Visual Range AT ELANA 841P Posterior Chamber Intraocular Lens for Correction of Aphakia Following Cataract Removal

The goal of this clinical trial is to demonstrate the safety and effectiveness of the full visual range AT ELANA 841P IOL when used to treat adult patients having cataract surgery. Subjects will be randomly selected to receive a pair of IOLs, either the AT ELANA 841P or CT LUCIA 621P lens design. All patients will undergo surgery in both eyes, and they will receive follow up care for up to 6-months. During this time, all patients will undergo thorough eye exams at every study visit and complete questionnaires about their quality of vision post-surgery.

Read the detailed description

The goal of this clinical trial is to demonstrate safety and effectiveness of the full visual range AT ELANA 841P posterior chamber IOL when used to treat adult patients undergoing cataract surgery. In this study, all patients will be randomly assigned (using a 1 to 1 ratio) to receive either the investigational device: AT ELANA 841P trifocal IOL, or the commercially available, FDA-approved, control device: CT LUCIA 621P monofocal IOL.

There will be 286 adults, 22 years of age or older. All will be scheduled to undergo cataract surgery in both eyes; along with completing a 6-months follow-up. This clinical trial will take place at 14 clinical sites located throughout the United States.

Salus IRB will provide ethical oversight for this clinical trial, while Ora, Inc. is the CRO assisting the research sites with completing all required study activities.

This clinical trial is expected to be about 18-months long.

Each participant who provides their consent for study participation must meet the following visual criteria to qualify:

  • Before Cataract Surgery: Best-Corrected Visual Acuity 20/40 or worse with or without glare present.
  • Astigmatism of 1.0 diopter or less in both eyes
  • After Cataract Surgery: Best-Corrected Visual Acuity is expected to be better than 20/30

Study Enrollment is anticipated to begin June 2024, and will last about 10-months. During this time, subjects will undergo cataract surgery in both eyes, and after surgery will attend about 8 follow-up visits spread over 6-months. At these visits each individual will have their vision thoroughly examined, and be asked to complete questionnaires about the quality of their vision.

Typical Assessments each participant will have at their study visits include:

  • You will be asked about your current overall health and about any previous conditions or treatments you have had.
  • Any medications you have taken, are taking now or have stopped taking while in the study will be recorded.
  • Visual acuity and Subjective refraction (glasses prescription): your doctor will test your far vision with and without glasses.
  • Biometry: the anatomy of your eye will be measured using a specialized instrument to calculate the recommended IOL power for your eyes.
  • Pupil diameter: the study doctor will measure the size of your pupils.
  • Intraocular pressure: numbing drops will be put in your eyes and your eye pressure will be measured by touching an instrument to your cornea, which is the clear front window of your eye. Since your eyes are numb, you should feel no pain during this procedure.
  • Slit lamp examination: the front part of your study eye will be examined using a bright light and a special microscope called a slit lamp. Dilating drops could be put in your study eye to enlarge your pupil (the black circle in the center of the colored part [the iris] of the eye). The study doctor will use a magnifying lens and a bright light to examine your retina, which is the back of your eye. The effect of these drops will last approximately 4 -5 hours, and during that time, it is recommended that you should not drive a car or operate machinery.
  • Dilated fundus (retina) examination: once the pupil is dilated, the study doctor will observe the back part of your eyes.
  • Questionnaire: you will be asked to complete a questionnaire to collect information on any problems which involve your vision or feelings that you have about the condition of your vision.

Later in the study, these assessments will be performed for each participant:

  • Contrast Sensitivity: a special device will be used to test how well you can differentiate objects on a bright background with different lighting conditions (Month 6 only).
  • Defocus Curve: your study doctor will place different lenses in front of your eyes. This simulates how you would see at different distances without changing your position to the test chart. Your vision will be measured to determine how well you are able to see at each of the distances (Month 1, Month 6).
Conditions
Cataract Senile
Being tested
Cataract Surgery
Keywords
Cataract, Cataract Surgery
Medical subject headings
Cataract

What participants receive

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

  • Cataract SurgeryDevice

    Bilateral removal of age related cataractous lenses with the implantation of intraocular lenses to improve visual acuity.

Study groups in NCT06264232
Study groupRoleWhat they receive
AT ELANA 841P IOLExperimentalCataract Surgery to implant multifocal intraocular lenses
Receives: Device: Cataract Surgery
CT LUCIA 621P IOLActive comparatorCataract Surgery to implant monofocal intraocular lenses
Receives: Device: Cataract Surgery

What is being measured

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

  1. Primary Effectiveness Outcome

    Mean, monocular photopic logMAR best-corrected distance visual acuity (BCDVA) at 4 m for the first implanted eyes, at Month 6 (Visit 4).

    Measured: Month 6

  2. Primary Effectiveness Outcome

    Mean, monocular photopic logMAR distance-corrected near visual acuity (DCNVA) at 40 cm, for the first implanted eyes at Month 6 (Visit 4)

    Measured: Month 6

  3. Primary Effectiveness Outcome

    Mean, monocular photopic logMAR distance-corrected intermediate visual acuity (DCIVA) for the first implanted eyes at 66 cm, at Month 6 (Visit 4)

    Measured: Month 6

  4. Primary Effectiveness Outcome

    Mean, monocular photopic logMAR distance-corrected visual acuity (DCVA) at 1 m (equal to -1 D defocus) and 50 cm (equal to -2 D defocus), for the first implanted eyes at Month 6 (Visit 4)

    Measured: Month 6

  5. Primary Effectiveness Outcome

    Proportion of AT ELANA 841P IOL eyes achieving monocular photopic BCDVA 0.30 logMAR or better, for first implanted eyes in Full Analysis Set (FAS) and Best Case Set (BCS), at Month 6 (Visit 4)

    Measured: Month 6

  6. Primary Safety Outcome

    Mean log monocular mesopic far contrast sensitivity (without glare at spatial frequency of 1,5, 3, 6, and 12 cycles/degree) for first implanted eyes in Best Case Set (BCS), at Month 6 (Visit 4)

    Measured: Month 6

  7. Primary Safety Outcome

    Rate of secondary surgical interventions related to the optical properties of the lens for first implanted eyes, through 6 months.

    Measured: Month 6

  8. Primary Safety Outcome

    Rate of Posterior Chamber IOL cumulative and persistent adverse events (AEs) listed in the ISO 11979-7:2024 Table E.2, for first implanted eyes, through 6 months.

    Measured: Month 6

Timeline

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

  1. First posted16 Feb 2024
  2. Study start12 Jul 2024
  3. Primary completion3 Nov 2025
  4. Study completion1 Dec 2025

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, Outcomes assessor
Enrolment
284 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06264232
Sponsor's protocol ID
AT ELANA 841P-BER-303-24
Status last verified
Feb 2025
First submitted
12 Feb 2024
Last updated
13 Aug 2026
Results posted
No
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 Cataract Surgery in people with Cataract Senile, run by Carl Zeiss Meditec, Inc. at 14 sites in United States.

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 25 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 13 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 sites in United States. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Primary Effectiveness Outcome (time frame: Month 6). The study lists 8 primary outcomes in all. 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 13 Aug 2026.

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