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Not yet recruitingNCT06451666Updated Jul 3, 2024

Safety and Efficacy Study of Pilocarpine HCl Ophthalmic Solution in Participants With Presbyopia

A Phase 3 interventional study of Pilocarpine HCl Ophthalmic Solution and Vehicle in Presbyopia, sponsored by CSPC Ouyi Pharmaceutical Co., Ltd.. Not yet recruiting. Open to participants aged 40 Years to 65 Years. Per ClinicalTrials.gov, last updated 2024-07-03.

Sponsored by CSPC Ouyi Pharmaceutical Co., Ltd. (part of CSPC Pharmaceutical Group Limited) · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Nov 2025, 11 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 3
Study type
Interventional
Enrollment
330
Allocation
Randomized
Ages
40 Years to 65 Years
Sex
All
01

Study summary

A study to evaluate the efficacy, safety, and pharmacokinetics of pilocarpine HCl ophthalmic solution when administered bilaterally, once daily for 30 days in participants with presbyopia.

02

Conditions studied

  • Presbyopia

Browse trials for

03

In context

Presbyopia

336 studies on the registry are indexed under Presbyopia; 35 are open to participants now.

This study's planned enrollment of 330 is above the median of 61 across 276 interventional studies indexed under Presbyopia.

Browse Presbyopia studies →

Lead sponsor

CSPC Ouyi Pharmaceutical Co., Ltd. is the lead sponsor of 30 studies on the registry; 15 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 1 Participant must be 40 to 65 years of age inclusive, at the time of the screening visit;
  • 2 Emmetropes or non-emmetropes with best distance correction in the range of spherical -4.00 D to +2.00 D inclusively and cylinder ±2.00 D with photopic, high contrast CDVA of 20/25 or better in each eye at the screening and baseline visits;
  • 3 Mesopic, high contrast DCNVA of 20/40 to 20/100 in each eye at the screening and baseline visits;
  • 4 Photopic, high contrast, near visual acuity correctable to 20/40 or better in each eye at the screening and baseline visits;
  • 5 Dark adaptation pupil diameter between 4.0 mm and 8.0 mm in both eyes at the screening visit;
  • 6 Capable of giving signed , which includes compliance with the requirements and restrictions listed in the ICF and in this protocol.

Exclusion criteria

Exclusion Criteria:

  • 1 disease state, in the opinion of the examining investigator or designee, in any body system;
  • 2 Known allergy or sensitivity to the study intervention or its components or other cholinergic agonist medications;
  • 3 Any active ocular inflammation within 30 days prior to the first use of the drug;
  • 4 Current enrollment in an study or participation in such a study within 30 days prior to the first use of the investigational drug;
  • 5 Any clinical condition or previous surgery that might affect the absorption, distribution, biotransformation, or excretion;
  • 6 History of cataract surgery, phakic intraocular lens surgery, corneal refractive surgery, radial keratotomy, or any intraocular surgery;
  • 7 Presence of any ocular condition that, in the opinion of the investigator, could affect the safety of the participant or interpretation of efficacy parameters;
  • 8 Moderate to severe dry eye disease at the screening visit;
  • 9 Lens opacity in either eye that is determined to cause significant disturbance of the central visual axis at the screening visit;
  • 10 Diagnosis of any type of glaucoma or ocular hypertension;
  • 11 Female who have a positive pregnancy test during the screening period, lactating, or planning a pregnancy during the study.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
330 participants (estimated)

Study arms

  • Experimental
    Pilocarpine HCl Ophthalmic Solution

    Drug: Pilocarpine HCl Ophthalmic Solution

  • Placebo comparator
    Vehicle

    Drug: Vehicle

Interventions

  • Pilocarpine HCl ophthalmic solution 1.25%, one drop in each eye, once daily, for up to 30 days

  • DrugVehicle

    Vehicle, one drop in each eye, once daily, for up to 30 days.

06

What researchers measure

Primary outcomes

  1. Title: Percentage of Participants Gaining 3 Lines or More in Mesopic, High-contrast, Binocular Distance-Corrected Near Visual Acuity (DCNVA) at Day 30, Hour 3

    Time frame: Baseline (Day 1) to Day 30 (Hour 3)

Secondary outcomes

  1. Incidence and frequency of adverse events (AE) and serious adverse events (SAE) etc.

    Time frame: Through study completion, an average of 60 days

  2. Area under the plasma concentration time curve from time zero to the last measurable concentration(AUC0-t)

    Time frame: Day 1 and Day 30

  3. Area under the plasma concentration-time curve from time zero to infinity(AUC0-inf)

    Time frame: Day 1 and Day 30

  4. Maximum plasma concentration(Cmax)

    Time frame: Day 1 and Day 30

  5. Time to maximum plasma concentration (Tmax)

    Time frame: Day 1 and Day 30

  6. Apparent Volume of Distribution During Terminal Phase (Vz/F)

    Time frame: Day 1 and Day 30

  7. Apparent Terminal Elimination Half-Life (T1/2)

    Time frame: Day 1 and Day 30

  8. Apparent total body clearance (CL/F)

    Time frame: Day 1 and Day 30

07

Study locations

No study locations are listed for this record.

08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Jun 2024; primary completion for Nov 2025, 17 months later.

Of 19 phase 3 interventional studies under Presbyopia, half reached primary completion within 10 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 11. This study's planned 17 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
May 29, 2024
First posted
Jun 11, 2024
StartEst.
Jun 30, 2024
Primary completionEst.
Nov 30, 2025
CompletionEst.
Dec 30, 2025
Last update
Jul 3, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 3, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06451666
Responsible party
Sponsor
First posted
Jun 11, 2024
Start date
Jun 30, 2024 (estimated)
Primary completion
Nov 30, 2025 (estimated)
Completion
Dec 30, 2025 (estimated)
Last update
Jul 3, 2024

Study contacts

Clinical Trials Information Group officer
Contact
ctr-contact@cspc.cn
86-0311-69085587

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Pilocarpine

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