NCT06784063

Brief Summary

The purpose of this study is to generate clinical data to quantify the impact of residual astigmatism on the overall visual performance during distance, intermediate, and near viewing in patients implanted with Clareon Vivity IOLs.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 15, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

January 20, 2025

Completed
3 months until next milestone

Study Start

First participant enrolled

April 10, 2025

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 13, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 13, 2025

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

July 13, 2026

Completed
Last Updated

July 13, 2026

Status Verified

July 1, 2026

Enrollment Period

2 months

First QC Date

January 15, 2025

Results QC Date

May 29, 2026

Last Update Submit

July 10, 2026

Conditions

Keywords

CataractIOL

Outcome Measures

Primary Outcomes (6)

  • Mean Difference in Monocular Best Corrected Distance Visual Acuity (BCDVA) (4 Meters) Before and After Inducing 1.0 Diopter (D) Astigmatism - WTR

    BCDVA was assessed with best refractive correction in place at a distance of 4 meters (m) using Early Treatment Diabetic Retinopathy Study (ETDRS) letter charts. Trial lenses were used to induce 1.0 diopter (D) of astigmatism with-the-rule (WTR), defined as -0.50/+1.00 D at approximately 180 degrees on the optical axis. VA was measured in the first implanted eye in logarithm minimum angle of resolution (logMAR), with a lower logMAR value indicating better visual acuity. The change in VA before and after inducing astigmatism is reported, with a positive value representing a decline in VA. No hypothesis testing was prespecified for this co-primary endpoint.

    Day 0 before induced astigmatism; Day 0 after induced astigmatism

  • Mean Difference in Monocular Distance Corrected Intermediate Visual Acuity (DCIVA) (66 Centimeters) Before and After Inducing 1.0 D Astigmatism - WTR

    DCIVA was assessed with distance correction in place (plus or minus power) at a distance of 66 centimeters (cm) from the spectacle plane using ETDRS letter charts. Trial lenses were used to induce 1.0 D of astigmatism with-the-rule (WTR), defined as -0.50/+1.00 D at approximately 180 degrees on the optical axis. VA was measured in the first implanted eye in logarithm minimum angle of resolution (logMAR), with a lower logMAR value indicating better visual acuity. The change in VA before and after inducing astigmatism is reported, with a positive value representing a decline in VA. No hypothesis testing was prespecified for this co-primary endpoint.

    Day 0 before induced astigmatism; Day 0 after induced astigmatism

  • Mean Difference in Monocular Distance Corrected Near Visual Acuity (DCNVA) (40 cm) Before and After Inducing 1.0 D Astigmatism - WTR

    DCNVA was assessed with distance correction in place (plus or minus power) at a distance of 40 cm from the spectacle plane using ETDRS letter charts. Trial lenses were used to induce 1.0 D of astigmatism WTR, defined as -0.50/+1.00 D at approximately 180 degrees on the optical axis.VA was measured in the first implanted eye in logarithm minimum angle of resolution (logMAR), with a lower logMAR value indicating better visual acuity. The change in VA before and after inducing astigmatism is reported, with a positive value representing a decline in VA. No hypothesis testing was prespecified for this co-primary endpoint.

    Day 0 before induced astigmatism; Day 0 after induced astigmatism

  • Mean Difference in Monocular Best Corrected Distance Visual Acuity (BCDVA) (4 Meters) Before and After Inducing 1.0 Diopter (D) Astigmatism - ATR

    BCDVA was assessed with best refractive correction in place at a distance of 4 m using ETDRS letter charts. Trial lenses were used to induce 1.0 D of astigmatism against the rule (ATR), defined as -0.50/+1.00 D at approximately 90 degrees on the optical axis. VA was measured in the first implanted eye in logarithm minimum angle of resolution (logMAR), with a lower logMAR value indicating better visual acuity. The change in VA before and after inducing astigmatism is reported, with a positive value representing a decline in VA. No hypothesis testing was prespecified for this co-primary endpoint.

    Day 0 before induced astigmatism; Day 0 after induced astigmatism

  • Mean Difference in Monocular Distance Corrected Intermediate Visual Acuity (DCIVA) (66 Centimeters) Before and After Inducing 1.0 D Astigmatism.- ATR

    DCIVA was assessed with distance correction in place (plus or minus power) at a distance of 66 cm from the spectacle plane using ETDRS letter charts. Trial lenses were used to induce 1.0 D of astigmatism ATR, defined as -0.50/+1.00 D at approximately 90 degrees on the optical axis. VA was measured in the first implanted eye in logarithm minimum angle of resolution (logMAR), with a lower logMAR value indicating better visual acuity. The change in VA before and after inducing astigmatism is reported, with a positive value representing a decline in VA. No hypothesis testing was prespecified for this co-primary endpoint.

    Day 0 before induced astigmatism; Day 0 after induced astigmatism

  • Mean Difference in Monocular Distance Corrected Near Visual Acuity (DCNVA) (40 cm) Before and After Inducing 1.0 D Astigmatism - ATR

    DCNVA was assessed with distance correction in place (plus or minus power) at a distance of 40 cm from the spectacle plane using ETDRS letter charts. Trial lenses were used to induce 1.0 D of astigmatism ATR, defined as -0.50/+1.00 D at approximately 90 degrees on the optical axis. VA was measured in the first implanted eye in logarithm minimum angle of resolution (logMAR), with a lower logMAR value indicating better visual acuity. The change in VA before and after inducing astigmatism is reported, with a positive value representing a decline in VA. No hypothesis testing was prespecified for this co-primary endpoint.

    Day 0 before induced astigmatism; Day 0 after induced astigmatism

Study Arms (1)

Clareon Vivity/Vivity Toric

EXPERIMENTAL

Previous implantation in both eyes with Clareon Vivity/Vivity Toric Extended Vision IOLs, with previous implantation defined as at least 4 months prior to study participation.

Device: Clareon Vivity Extended Vision IOL

Interventions

Extended vision intraocular lens implanted in the capsular bag of the eye during cataract surgery. IOLs are intended for long term use over the lifetime of the cataract patient.

Also known as: Models CNWET0, CNWET3, CNWET4, CNWET5, CNWET6, CNAET0, CNAET3, CNAET4, CNAET5, CNAET6, CCWET0, CCWET3, CCWET4, CCWET5, CCWET6, CCAET0, CCAET3, CCAET4, CCAET5, CCAET6., Clareon Vivity™ Extended Vision Hydrophobic IOL, Clareon Vivity™ Extended Vision Hydrophobic Toric IOL, Clareon Vivity™ UV Absorbing IOL
Clareon Vivity/Vivity Toric

Eligibility Criteria

Age22 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Able to understand and sign an Institution Review Board-approved informed consent form;
  • Willing and able to attend all scheduled study visits as required by the protocol;
  • Implanted with study IOLs in both eyes at least 4 months prior to study participation;
  • Best Corrected Distance Visual Acuity (BCDVA) of 0 logarithm minimum angle of resolution (logMAR) or better in each eye.

You may not qualify if:

  • Residual astigmatism greater than or equal to 1.00 diopter (D);
  • Clinically significant ocular conditions as specified in the protocol;
  • History of ocular surgeries other than limbal relaxing incisions

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Grosinger, Spigelman & Grey Eye Surgeons, P.C

Bloomfield Hills, Michigan, 48302, United States

Location

Key-Whitman Eye Center

Dallas, Texas, 75243, United States

Location

Berkeley Eye Center

Sugar Land, Texas, 77478, United States

Location

Related Links

MeSH Terms

Conditions

AstigmatismCataract

Condition Hierarchy (Ancestors)

Refractive ErrorsEye DiseasesLens Diseases

Results Point of Contact

Title
Sr. Clinical Manager, Surgical
Organization
Alcon Research, LLC

Study Officials

  • Clinical Trial Lead, Surgical CRD

    Alcon Research, LLC

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Subjects implanted with Clareon Vivity will be randomized to either with-the-rule (WTR) or against-the-rule (ATR) induced astigmatism first. Following the initial assessment, subjects will alternate between ATR and WTR for additional assessments based on a predefined randomization sheet.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 15, 2025

First Posted

January 20, 2025

Study Start

April 10, 2025

Primary Completion

June 13, 2025

Study Completion

June 13, 2025

Last Updated

July 13, 2026

Results First Posted

July 13, 2026

Record last verified: 2026-07

Data Sharing

IPD Sharing
Will not share

Locations