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PresbyopiaPhase 2NCT05294328

Evaluation of the Safety and Effectiveness of Aceclidine/Brimonidine (LNZ101) and Aceclidine (LNZ100) in the Treatment of Presbyopia

A Phase 2 study testing Aceclidine+Brimonidine combination ophthalmic solution and Aceclidine ophthalmic solution in people with Presbyopia and Refractive Errors, run by LENZ Therapeutics, Inc at 5 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

To evaluate the safety and effectiveness of Aceclidine/Brimonidine (LNZ101) compared with Aceclidine (LNZ100) and vehicle in the treatment of Presbyopia. Read more about this study

Who is it for?
Ages 45 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Presbyopia, Refractive Errors, Eye Diseases
What is being tested?
Aceclidine+Brimonidine combination ophthalmic solution and Aceclidine ophthalmic solution
Could I receive a placebo?
No, everyone receives an active treatment
How many people
68 participants
Where
5 sitesUnited States
Study dates
5 May 2022to 10 Sep 2022
Phase
Phase 2
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 45 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Subjects MUST:
  • Be able and willing to provide written informed consent and sign 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 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 (so that SE results in myopia no more severe than -4.00 SE. See Inclusion 5 below) in both eyes determined by manifest refraction documented at Visit 1;
  • Have up to 2.00D of cylinder (minus cylinder) in both eyes determined by manifest refraction documented at Visit 1;
  • Be presbyopic as determined at Visit 1

Who cannot join

  • 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(s) or their components;
  • Have an active ocular infection at Visit 1 (bacterial, viral or fungal), positive history of an ocular herpetic infection, preauricular lymphadenopathy, or ongoing, active ocular inflammation (e.g., moderate to severe blepharitis, allergic conjunctivitis, peripheral ulcerative keratitis, scleritis, uveitis) in either eye;
  • Have moderate or severe dry eye determined by total corneal fluorescein staining at Visit 1;
  • Have clinically significant abnormal lens findings (e.g., cataract) including early lens changes and/or any evidence of a media opacity in either eye during dilated slit-lamp biomicroscopy and fundus exam documented within 3 months of Visit 1;

Trial locations and contacts

5 sites in 1 country.

5 sites in 1 country

United States5 sites
  • INSIGHT-1 Study Site #1

    Andover, Massachusetts, 01810

  • INSIGHT-1 Study Site #4

    Glendale, California, 91204

  • INSIGHT-1 Study Site #5

    Houston, Texas, 77027

  • INSIGHT-1 Study Site #3

    Indianapolis, Indiana, 46240

  • INSIGHT-1 Study Site #2

    Memphis, Tennessee, 38119

Other trials in United States

About this study

Official title: A Multicenter, Double-Masked Evaluation of the Safety and Effectiveness of Aceclidine /Brimonidine (LNZ101) and Aceclidine (LNZ100) in the Treatment of Presbyopia

To evaluate the safety and effectiveness of Aceclidine/Brimonidine (LNZ101) compared with Aceclidine (LNZ100) and vehicle in the treatment of Presbyopia.

Being tested
Aceclidine+Brimonidine combination ophthalmic solution, Aceclidine ophthalmic solution, Vehicle Proprietary Ophthalmic Solution
Keywords
Pharmaceutical Solutions, Miotics, Ophthalmic Solutions, Near Vision, Eye Drops, INSIGHT 1
Medical subject headings
Presbyopia, Refractive Errors, Eye Diseases, Myopia

What participants receive

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

  • Aceclidine+Brimonidine combination ophthalmic solutionDrug

    Also called LNZ101, Brimonidine and Aceclidine

    LNZ101-combination ophthalmic solution

  • Aceclidine ophthalmic solutionDrug

    Also called LNZ100, Aceclidine

    LNZ100- aceclidine ophthalmic solution

  • Vehicle Proprietary Ophthalmic SolutionDrug

    Also called Vehicle

    Proprietary Vehicle Ophthalmic Solution

Study groups in NCT05294328
Study groupRoleWhat they receive
Combination ophthalmic solution (LNZ101) dosed bilaterallyExperimentalLNZ101: Aceclidine/Brimonidine combination ophthalmic solution
Receives: Drug: Aceclidine+Brimonidine combination ophthalmic solution
Aceclidine Ophthalmic Solution (LNZ100) dosed bilaterallyExperimentalLNZ100: Aceclidine ophthalmic solution
Receives: Drug: Aceclidine ophthalmic solution
Vehicle Ophthalmic Solution dosed bilaterallyExperimentalProprietary Vehicle ophthalmic solution
Receives: Drug: Vehicle Proprietary Ophthalmic Solution

What is being measured

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

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

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

    Measured: 1 hour post treatment

Timeline

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

  1. First posted24 Mar 2022
  2. Study start5 May 2022
  3. Primary completion22 Aug 2022
  4. Study completion10 Sep 2022

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Multicenter, double-masked, randomized, crossover, active and vehicle-controlled, safety and effectiveness study
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
68 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05294328
Sponsor's protocol ID
21-100-0007
Status last verified
Aug 2024
First submitted
4 Mar 2022
Last updated
5 Sep 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Aceclidine+Brimonidine combination ophthalmic solution and Aceclidine ophthalmic solution in people with Presbyopia and Refractive Errors, run by LENZ Therapeutics, Inc at 5 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 7 inclusion and 6 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 5 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 5 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 5 Sep 2024). 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?

Percentage of Participants With a ≥ 3-line Improvement in Near Vision and no Loss ≥ 5 Letters Distance Vision (time frame: 1 hour post treatment). 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 5 Sep 2024.

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