Skip to content

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

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

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05431543
Enrollment
59
Registered
2022-06-24
Start date
2022-08-06
Completion date
2022-12-14
Last updated
2024-09-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Presbyopia, Refractive Errors, Eye Diseases

Keywords

Pharmaceutical Solutions, Miotics, Ophthalmic Solutions, Near Vision, Eye Drops, INSIGHT 2

Brief summary

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

Interventions

LNZ101-combination ophthalmic solution

LNZ100- aceclidine ophthalmic solution

Proprietary Vehicle ophthalmic solution

Sponsors

LENZ Therapeutics, Inc
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
TRIPLE (Caregiver, Investigator, Outcomes Assessor)

Intervention model description

Multicenter, double-masked, randomized, crossover, active and vehicle-controlled, safety and effectiveness study

Eligibility

Sex/Gender
ALL
Age
45 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

1. 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; 2. Be able and willing to follow all instructions and attend study visits; 3. Be 45-75 years of age of either sex and any race or ethnicity at Visit 1; 4. Have +1.00 to -4.00 diopter(D) of sphere (so that spherical equivalent (SE) results in myopia no more severe than -4.00D MRSE. See Inclusion 5 below) in both eyes determined by manifest refraction documented at Visit 1; 5. Have ≤ 2.00D of cylinder (minus cylinder) in both eyes determined by manifest refraction documented at Visit 1; 6. Be presbyopic as determined at Visit 1

Exclusion criteria

1. Be a female of childbearing potential who is currently pregnant, nursing or planning a pregnancy; 2. Have known contraindications or sensitivity to the use of any of the study medications(s) or their components; 3. 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; 4. Have moderate or severe dry eye defined as total corneal fluorescein staining at Visit 1; 5. Have clinically significant abnormal lens findings in either eye during dilated slit-lamp biomicroscopy and fundus exam documented within 3 months of Visit 1

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With a ≥ 3-line Improvement in Near Vision and no Loss ≥ 5 Letters Distance Vision1 hour post treatmentPercentage of participants with at least a 3-line improvement in near vision and no loss ≥ 5 letters distance vision

Countries

United States

Participant flow

Participants by arm

ArmCount
Crossover Sequence 1 (123)
LNZ101 (1), LNZ100 (2), Vehicle (3)
18
Crossover Sequence 2 (231)
LNZ100 (2), Vehicle (3), LNZ101 (1)
18
Crossover Sequence 3 (312)
Vehicle (3), LNZ101 (1), LNZ100 (2)
23
Total59

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyMedical History100

Baseline characteristics

CharacteristicCrossover Sequence 1 (123)Crossover Sequence 2 (231)Crossover Sequence 3 (312)Total
Age, Continuous54.4 years
STANDARD_DEVIATION 6.38
54.7 years
STANDARD_DEVIATION 5.55
56 years
STANDARD_DEVIATION 7.03
55.2 years
STANDARD_DEVIATION 6.34
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants5 Participants6 Participants19 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants13 Participants17 Participants40 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants3 Participants4 Participants
Race (NIH/OMB)
Black or African American
2 Participants2 Participants1 Participants5 Participants
Race (NIH/OMB)
More than one race
1 Participants1 Participants0 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
15 Participants14 Participants19 Participants48 Participants
Sex: Female, Male
Female
9 Participants11 Participants17 Participants37 Participants
Sex: Female, Male
Male
9 Participants7 Participants6 Participants22 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 590 / 580 / 58
other
Total, other adverse events
17 / 593 / 580 / 58
serious
Total, serious adverse events
0 / 590 / 580 / 58

Outcome results

Primary

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

Time frame: 1 hour post treatment

Population: The treatment crossover design allowed for each treatment to be analyzed in all subjects. The primary efficacy analysis was performed on a mITT population of subjects meeting the baseline criteria.

ArmMeasureValue (NUMBER)
LNZ101Percentage of Participants With a ≥ 3-line Improvement in Near Vision and no Loss ≥ 5 Letters Distance Vision74.0 percentage of participants
LNZ100Percentage of Participants With a ≥ 3-line Improvement in Near Vision and no Loss ≥ 5 Letters Distance Vision75.5 percentage of participants
Vehicle Ophthalmic SolutionPercentage of Participants With a ≥ 3-line Improvement in Near Vision and no Loss ≥ 5 Letters Distance Vision4.3 percentage of participants
p-value: <0.0001Generalized Estimating Equation (GEE)
p-value: <0.0001Generalized Estimating Equation (GEE)

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026