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Brimonidine

Phase 3

Presbyopia | Small molecule | Ophthalmology |LENZ Therapeutics, Inc.|Last Updated: May 13, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials1
Total Enrollment469

FDA Designations

No designations recorded

Clinical trial landscape

Brimonidine · 1 trial · 4 indications

Phase 3 1
NCT05656027Phase 3 Evaluation of the Safety and Efficacy of LNZ100 & LNZ101 for the Treatment of PresbyopiaPresbyopia
COMPLETED469 Analytics
PHASE3COMPLETED
Phase 3 Evaluation of the Safety and Efficacy of LNZ100 & LNZ101 for the Treatment of Presbyopia
PresbyopiaUnlock trial analytics

Study Endpoints

Primary Endpoints

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

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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Aceclidine + Brimonidine (LNZ101) dosed bilaterallyEXPERIMENTALLNZ101 (Aceclidine /Brimonidine) ophthalmic solution
Aceclidine Ophthalmic Solution (LNZ100) dosed bilaterallyEXPERIMENTALLNZ100 (Aceclidine) ophthalmic solution
Brimonidine ophthalmic solution dosed bilaterallyEXPERIMENTALBrimonidine ophthalmic solution

Interventions

NameTypeDescription
Aceclidine+Brimonidine combination ophthalmic solutionDRUGLNZ101 (Aceclidine/Brimonidine) ophthalmic solution
Aceclidine ophthalmic solutionDRUGLNZ100 Aceclidine ophthalmic solution
BrimonidineDRUGBrimonidine ophthalmic solution
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Eligibility Criteria

Age Range45 Years to 75 Years
SexALL
Healthy VolunteersYes
Study Sites25

Inclusion Criteria: 1. 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; 2. Be able and willing to follow all instructions and attend all study visits; 3. Be 45-75 years...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJun 13, 2026NCT05656027TRIAL_REMOVED: changed
MEDIUMJun 13, 2026NCT05656027TRIAL_REMOVED: changed
MEDIUMJun 13, 2026NCT05656027TRIAL_REMOVED: changed
MEDIUMJun 13, 2026NCT05656027TRIAL_REMOVED: changed

Frequently asked questions about Brimonidine

What is Brimonidine used for in presbyopia?

Brimonidine is an investigational small molecule being developed by LENZ Therapeutics for the treatment of presbyopia, an age-related condition that reduces the eye's ability to focus on near objects. It is administered as an eye drop and is currently in Phase 3 clinical development.

What does Brimonidine target?

Brimonidine is a small molecule that acts on the eye to improve near vision in patients with presbyopia. Its specific molecular target has not been disclosed in the available information, but it is being evaluated for its ability to address the focusing difficulties associated with the condition.

Who makes Brimonidine?

Brimonidine is being developed by LENZ Therapeutics, Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol LENZ. The company is conducting clinical trials to evaluate the safety and efficacy of Brimonidine for the treatment of presbyopia.

What phase is Brimonidine in?

Brimonidine is in Phase 3 clinical development for presbyopia. It is an investigational drug and has not yet been approved by regulatory authorities. A Phase 3 trial has been completed, and the drug remains under investigation for this indication.

What clinical trials is Brimonidine in?

Brimonidine has been studied in one completed Phase 3 clinical trial with the identifier NCT05656027. This randomized, double-blind, controlled trial enrolled 469 participants aged 45 years and older in the United States to evaluate the safety and efficacy of Brimonidine for the treatment of presbyopia.