Efficacy and Safety of BRIMOCHOL PF and CARBACHOL PF in Chinese Presbyopia Patients

NCT06948357 | Recruiting Phase 2

• 1 other identifier: ZKO-CSP-BRI-CAR-201
• Study Type: interventional
• Target: 119
• Locations: 1 country
• Sites: 1

Brief Summary

A multicenter, randomized, double-Blind, crossover, placebo-controlled Phase II clinical Study to evaluate the efficacy and safety of BRIMOCHOL PF and CARBACHOL PF in the treatment of Chinese patients with presbyopia.

Conditions

Presbyopia

Keywords

presbyopia; eye drops; ophthalmic solution; Chinese; Brimochol; Carbachol; Brimonidine

Outcome Measures

Primary Outcomes (1)

• Changes in MCNVA(monocular corrected near visual acuity) ETDRS letters and MCDVA (monocular corrected distance visual acuity) ETDRS letters from baseline in the study eyes after administration

  In the mesopic condition, the proportion of subjects whose MCNVA in the study eye increased by ≥15 ETDRS letters and whose MCDVA in the study eye did not decrease by ≥5 ETDRS letters from the pre-dose baseline at 15minutes, 1hour, 2hour, 4hour15minutes, 6hour, and 8hour after dosing.

  15minutes, 1hour, 2hour, 4hour15minutes, 6hour, and 8hour after administration

Secondary Outcomes (5)

• Changes in MCNVA(monocular corrected near visual acuity) ETDRS letters from baseline in the study eyes after administration

  15minutes, 1hour, 2hour, 4hour15minutes, 6hour, and 8hour after administration

• Changes in MCNVA(monocular corrected near visual acuity) ETDRS letters from baseline in the study eyes after administration

  15 minutes to 8 hours after administration

• Changes in MCNVA(monocular corrected near visual acuity) ETDRS letters from baseline in the study eyes after administration

  15 minutes to 8 hours after administration

• Changes in BCNVA (Binocular Corrected Near Visual Acuity) ETDRS letters and BCDVA (Binocular Corrected Distance Visual Acuity) ETDRS letters from baseline after administration

  15minutes, 1hour, 2hour, 4hour15minutes, 6hour, and 8hour after administration

• Changes in pupil diameter from baseline after administration

  15minutes, 1hour, 2hour, 4hour15minutes, 6hour, and 8hour after administration

Study Arms (7)

Treatment Sequences 1

EXPERIMENTAL

BRIMOCHOL PF eye drops and placebo eye drops given once respectively in visit 2; CARBACHOL PF eye drops and placebo eye drops given once respectively in visit 3; Brimonidine eye drops and placebo eye drops given once respectively in visit 4; BRIMOCHOL PF eye drops given twice in visit 5; CARBACHOL PF eye drops given twice in visit 6; Brimonidine eye drops given twice in visit 7; Placebo eye drops given twice in visit 8.

Drug: BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo

Treatment Sequences 2

EXPERIMENTAL

Placebo eye drops given twice in visit 2; BRIMOCHOL PF eye drops and placebo eye drops given once respectively in visit 3; CARBACHOL PF eye drops and placebo eye drops given once respectively in visit 4; Brimonidine eye drops and placebo eye drops given once respectively in visit 5; BRIMOCHOL PF eye drops given twice in visit 6; CARBACHOL PF eye drops given twice in visit 7; Brimonidine eye drops given twice in visit8.

Drug: BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo

Treatment Sequences 3

EXPERIMENTAL

Brimonidine eye drops given twice in visit 2; Placebo eye drops given twice in visit 3; BRIMOCHOL PF eye drops and placebo eye drops given once respectively in visit 4; CARBACHOL PF eye drops and placebo eye drops given once respectively in visit 5; Brimonidine eye drops and placebo eye drops given once respectively in visit 6; BRIMOCHOL PF eye drops given twice in visit 7; CARBACHOL PF eye drops given twice in visit 8.

Drug: BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo

Treatment Sequences 4

EXPERIMENTAL

CARBACHOL PF eye drops given twice in visit 2; Brimonidine eye drops given twice in visit 3; Placebo eye drops given twice in visit 4; BRIMOCHOL PF eye drops and placebo eye drops given once respectively in visit 5; CARBACHOL PF eye drops and placebo eye drops given once respectively in visit 6; Brimonidine eye drops and placebo eye drops given once respectively in visit 7; BRIMOCHOL PF eye drops given twice in visit 8.

Drug: BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo

Treatment Sequences 5

EXPERIMENTAL

BRIMOCHOL PF eye drops given twice in visit 2; CARBACHOL PF eye drops given twice in visit 3; Brimonidine eye drops given twice in visit 4; Placebo eye drops given twice in visit 5; BRIMOCHOL PF eye drops and placebo eye drops given once respectively in visit 6; CARBACHOL PF eye drops and placebo eye drops given once respectively in visit 7; Brimonidine eye drops and placebo eye drops given once respectively in visit 8.

Drug: BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo

Treatment Sequences 6

EXPERIMENTAL

Brimonidine eye drops and placebo eye drops given once respectively in visit 2; BRIMOCHOL PF eye drops given twice in visit 3; CARBACHOL PF eye drops given twice in visit 4; Brimonidine eye drops given twice in visit 5; Placebo eye drops given twice in visit 6; BRIMOCHOL PF eye drops and placebo eye drops given once respectively in visit 7; CARBACHOL PF eye drops and placebo eye drops given once respectively in visit 8.

Drug: BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo

Treatment Sequences 7

EXPERIMENTAL

CARBACHOL PF eye drops and placebo eye drops given once respectively in visit 2; Brimonidine eye drops and placebo eye drops given once respectively in visit 3; BRIMOCHOL PF eye drops given twice in visit 4; CARBACHOL PF eye drops given twice in visit 5; Brimonidine eye drops given twice in visit 6; Placebo eye drops given twice in visit 7; BRIMOCHOL PF eye drops and placebo eye drops given once respectively in visit 8.

Drug: BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo

Interventions

BRIMOCHOL PF eye drops; CARBACHOL PF eye drops; Brimonidine eye drops; Placebo DRUG

BRIMOCHOL PF eye drops, CARBACHOL PF eye drops, Brimonidine eye drops and Placebo were administered in 7 treatment sequences in various combinations and doses

Treatment Sequences 1; Treatment Sequences 2; Treatment Sequences 3; Treatment Sequences 4; Treatment Sequences 5; Treatment Sequences 6; Treatment Sequences 7

Eligibility Criteria

• Age: 45 Years - 75 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• At Visit 1 (Screening Period), the age ranges from 45 to 75 years old, regardless of gender
• At Visit 1 (Screening Period), the corrected distance visual acuity of either eye is ≥ 0.8 (National Standard Logarithmic Visual Acuity Scale,decimal visual acuity) in the clinical routine manifest refraction (distance vision).
• At Visit 1 (Screening Period), the manifest refraction (distance vision under mesopic conditions) results are as follows: For any eye,-4.00D ≤ equivalent spherical lens power ≤ +2.00D, and the negative cylinder lens power is ≥-2.00D;
• At least one eye meeting the following at both Visit 1 and Visit 2:
• Under mesopic conditions, monocular corrected near visual acuity (MCNVA) ≤65 ETDRS letters (equivalent to decimal visual acuity 0.4) ;
• Under mesopic conditions, monocular corrected near visual acuity with a multiple-pinhole occluder (MCNVA\_P) improves by ≥15 ETDRS letters compared to monocular corrected near visual acuity without the occluder (MCNVA).
• During Visit 1 (Screening Period) and Visit 2, both eyes must meet the following criteria:under mesopic conditions, binocular corrected near visual acuity (BCNVA) is ≤65 ETDRS letters (equivalent to decimal visual acuity 0.4);
• Any eye is phakic or implanted with a monofocal intraocular lens (IOL);
• Normal iris and pupillary morphology in any eye, with normal light reflex and an interocular pupillary diameter difference ≤1 mm during screening;

You may not qualify if:

• Use of corneal or scleral contact lenses within 28 days prior to screening or planned for the duration of the study;
• Narrow anterior chamber angle (Van Herick grade ≤2 via slit lamp examination) or previous iridotomy or resection in either eye；
• Ocular history in any eye: hyphema, ciliary body detachment, iridodonesis, or ocular trauma；
• Any eye with a corneal abnormality that, in the judgment of the investigator, affects visual acuity or intraocular pressure measurements, including moderate to severe dry eye (e.g., significant signs of ocular surface damage (≥5 corneal fluorescein staining spots) on slit lamp microscopy);
• Any phakic eye has a history of lens tremor, subluxation, or suspected zonular laxity; or any pseudophakic eye has undergone posterior capsulotomy or uses multifocal or extended depth of focus intraocular lenses.
• Any eye with an axial length of ≥26mm;
• Either eye has undergone intraocular or corneal surgery (only non-complicated cataract surgery with a monofocal lens placed in the capsular bag more than 6 months after the date of surgery is permitted; complicated cataract surgery is defined as surgery that has resulted in a rupture of the capsule or placement of an IOL outside the capsule (ciliary sulcus, scleral or iris fixation, anterior chamber, etc.));
• Either eye has a history of congenital or traumatic cataract, congenital aphakia, or opacities in the refractive media that affect visual acuity in the visual axis area.
• History of uveitis, low intraocular pressure (IOP \< 9 mmHg), glaucoma or hypertension (IOP \> 21 mmHg) or pseudoexfoliation syndrome in either eye;
• Active ocular or periocular infection or inflammation in either eye, or a history of recurrent infection or chronic infection (e.g., herpes virus infection) in either eye;
• Either eye has a history of retinal diseases (such as retinal detachment, age-related macular degeneration, diabetic retinopathy, peripheral retinal diseases that increase the risk of the subject as judged by the investigator) or optic nerve abnormalities.
• During the screening period, any eye has any ocular disease other than presbyopia that requires treatment with ocular preparations, intravitreal injection or ocular surgery during the study period (except artificial tears, which can be used on the day of ocular examination during the screening period and on non-treatment visits).

Sponsors & Collaborators

• Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Ltd.: lead

Study Sites (1)

Optometry Hospital of Wenzhou Medical University

Wenzhou, Zhejiang, China

RECRUITING

MeSH Terms

Conditions

Presbyopia

Condition Hierarchy (Ancestors)

Refractive Errors; Eye Diseases

Study Officials

• Jia Qu

  Optometry Hospital of Wenzhou Medical University

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Peiqiu Gu

CONTACT

0577-88075582; EYE_ec@126.com

Xiaochen Wang

CONTACT

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: RANDOMIZED
• Masking: QUADRUPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: March 6, 2025
• First Posted: April 29, 2025
• Study Start: March 24, 2025
• Primary Completion: September 30, 2025
• Study Completion: December 30, 2025
• Last Updated: April 29, 2025

Record last verified: 2025-02

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)