NCT07228091

Brief Summary

The purpose of this real-world evidence study is to compare surgical procedure times for UNITY® VCS and CONSTELLATION® Vision System.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
180

participants targeted

Target at P50-P75 for all trials

Timeline
3mo left

Started Feb 2026

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress51%
Feb 2026Aug 2026

First Submitted

Initial submission to the registry

November 12, 2025

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 14, 2025

Completed
3 months until next milestone

Study Start

First participant enrolled

February 9, 2026

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2026

Last Updated

February 17, 2026

Status Verified

February 1, 2026

Enrollment Period

6 months

First QC Date

November 12, 2025

Last Update Submit

February 12, 2026

Conditions

Keywords

anterior segment ophthalmic surgeryposterior segment ophthalmic surgery

Outcome Measures

Primary Outcomes (1)

  • Proportion of surgeons replying "efficient" or "very efficient" to the question, "How would you rate overall OR (operating room) efficiency of the console for the combined phaco-vitrectomy surgery (including set-up/tear-down)?

    Responses will be collected on a 5-point scale where 1=Very Inefficient, 2=Inefficient, 3=Neutral, 4=Efficient, and 5=Very Efficient.

    Up to Day 1 post completion of the surgery

Study Arms (2)

UNITY VCS

Subjects will undergo routine scheduled combined anterior-posterior segments surgery (phacovitrectomy)

Device: UNITY VCS

CONSTELLATION

Subjects will undergo routine scheduled combined anterior-posterior segments surgery (phacovitrectomy)

Device: CONSTELLATION

Interventions

CONSTELLATION is a CE-marked, FDA-approved ophthalmic microsurgical system that is indicated for both anterior segment (i.e., phacoemulsification and removal of cataracts) and posterior segment (i.e., vitreoretinal) ophthalmic surgery. The focus of this study will be on combined anterior-posterior segments surgery (phacovitrectomy).

Also known as: CONSTELLATION® Vision System
CONSTELLATION
UNITY VCSDEVICE

UNITY® VCS is a CE-marked, FDA-approved ophthalmic microsurgical system that is indicated for both anterior segment (i.e., phacoemulsification and removal of cataracts) and posterior segment (i.e., vitreoretinal) ophthalmic surgery. The focus of this study will be on combined anterior-posterior segments surgery (phacovitrectomy).

Also known as: UNITY® Vitreoretinal Cataract System (VCS)
UNITY VCS

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Subjects will be recruited from the clinical practice of the participating Investigator.

You may qualify if:

  • Able to understand and sign an informed consent form (ICF) that has been approved by an ethics committee.
  • Planned combined phacovitrectomy procedure at one of the selected surgical sites.
  • Planned combined phacovitrectomy procedure with 25-gauge (G) vitrectomy tools.

You may not qualify if:

  • Unplanned/emergency phacovitrectomy.
  • Pregnant.
  • Past history of phacovitrectomy. cataract, vitrectomy in the planned operative eye.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Manchester Royal Eye Hospital

Manchester, M13 9WL, United Kingdom

RECRUITING

MeSH Terms

Conditions

CataractVitreous HemorrhageRetinal DetachmentEpiretinal MembraneRetinal Perforations

Condition Hierarchy (Ancestors)

Lens DiseasesEye DiseasesEye HemorrhageHemorrhagePathologic ProcessesPathological Conditions, Signs and SymptomsRetinal Diseases

Study Officials

  • Manager, Health Economics/Outcomes Research

    Alcon Research, LLC

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 12, 2025

First Posted

November 14, 2025

Study Start

February 9, 2026

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

August 1, 2026

Last Updated

February 17, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations