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OpenTrials
Completed

NCT Number: NCT05728944

Phase 3 Efficacy Study of LNZ100 & LNZ101 for the Treatment of Presbyopia

Phase 3 Efficacy Study to evaluate the Safety and Efficacy of LNZ100 & LNZ101 for the Treatment of Presbyopia

Completed

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Key information

Age range

45 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Site #209, Dothan, Alabama, United States

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About this study

Phase 3 study to evaluate the safety and effectiveness of LNZ101 compared with LNZ100 and Vehicle for the treatment of Presbyopia.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Subjects MUST:

  • Be able and willing to provide written informed consent and sign a Health Information Portability and Accountability Act (HIPAA) form prior to any study procedure being performed;
  • Be able and willing to follow all instructions and attend all study visits;
  • Be 45-75 years of age of either sex and any race or ethnicity at Visit 1;
  • Have +1.00 to -4.00 diopter (D) of sphere calculated in minus cylinder (so that spherical equivalent (SE) results in myopia no more severe than -4.00 D MRSE) in both eyes determined by manifest refraction documented at Visit 1;
  • Have ≤2.00 D of cylinder (minus cylinder) in both eyes determined by manifest refraction documented at Visit 1;
  • Be presbyopic as determined at Visit 1

Exclusion criteria

Subjects must NOT:

  • Be a female of childbearing potential who is currently pregnant, nursing, or planning a pregnancy;
  • Have known contraindications or sensitivity to the use of any of the study medications or their components;
  • Have an active ocular infection at Visit 1 or at Visit 2 (bacterial, viral, or fungal), positive history of an ocular herpetic infection, preauricular lymphadenopathy, or ongoing, active ocular inflammation in either eye;
  • Have moderate or severe dry eye defined as total central corneal fluorescein staining in either eye at Visit 1;
  • Have clinically significant abnormal lens findings including early lens changes during dilated slit lamp biomicroscopy and fundus exam documented within 3 months of Visit 1 or at Visit 1;

Treatment and study plan

Aceclidine+Brimonidine combination ophthalmic solution

Drug

Aceclidine + Brimonidine combination ophthalmic solution

Other names: LNZ101

Aceclidine ophthalmic solution

Drug

Aceclidine ophthalmic solution

Other names: LNZ100

Vehicle

Drug

Proprietary vehicle ophthalmic solution

Primary outcomes

  1. Percentage of Participants With a ≥ 3-line Improvement in Near Vision and no Loss ≥ 5 Letters Distance Vision

    Time frame: 3 hours post-treatment in the study eye on Day 1

    Percentage of participants with at least a 3-line improvement in near vision and no loss ≥ 5 letters distance vision on Day 1

Sponsors and collaborators

Lead sponsor

LENZ Therapeutics, Inc

Other

Registry information

Official study title

A Multi-Center, Double-Masked Phase 3 Evaluation of the Safety and Efficacy of LNZ101 for the Treatment of Presbyopia

Acronym: CLARITY 2

Important dates

Study start
2023
Primary completion
2023
Study completion
2024
First posted
Feb 15, 2023
Registry last updated
Feb 25, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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