A Phase 3 interventional study of STN1013800 ophthalmic solution and STN1013800 ophthalmic solution Liquid Base, without STN1013800 in Blepharoptosis, sponsored by Santen Pharmaceutical Co., Ltd.. Recruiting at 23 sites in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-05-15.
Sponsored by Santen Pharmaceutical Co., Ltd. · Phase 3, Interventional, and Treatment
This is a Phase III Study to evaluate the efficacy and safety of STN1013800 Ophthalmic Solution in Chinese Patients with Acquired Blepharoptosis.
At present, there are no medicines for the treatment of acquired blepharoptosis in China.
Therefore, to evaluate the efficacy and safety of 0.1% STN1013800 ophthalmic solution, Vehicle (Placebo) are designed.
For the screening period, 3-7 days were set to confirm the subjects and judge their qualification. Dosage and administration were based on prior clinical trial results approved at 0.1% once daily for 42 days treatment.
Inclusion Criteria:
At least one eye diagnosed with acquired blepharoptosis and presence of all the following criteria at screening:
Presence of all the following criteria at baseline:
Exclusion Criteria: In the study eye
0.1% STN1013800 ophthalmic solution administered once daily
Drug: STN1013800 ophthalmic solution
STN1013800 ophthalmic solution Liquid Base, without STN1013800 administered once daily
Drug: STN1013800 ophthalmic solution Liquid Base, without STN1013800
Investigational Product: 0.1% STN1013800 ophthalmic solution
Placebo control: STN1013800 ophthalmic solution Liquid Base, without STN1013800
Mean change from Baseline in the STN1013800 group versus the Vehicle (Placebo) group
Mean change from Baseline (Day 1, Hour 0) in the STN1013800 group versus the Vehicle (Placebo) group in number of points seen in the top 4 rows on the Leicester Peripheral Field Test (LPFT test) at 2 time points
Time frame: Day 1 Hour 6 (Visit 2); Day 14 Hour 2 (Visit 3)
Mean change of margin reflex distance-1 (MRD-1) from Baseline in the STN1013800 group versus the Vehicle (Placebo) group
Mean change of MRD-1 from Baseline (Day 1, Hour 0) in the STN1013800 group versus the Vehicle (Placebo) group at 2 time points
Time frame: Day 1 Hour 6 (Visit 2); Day 14 Hour 2 (Visit 3)
Mean change of margin reflex distance-1 (MRD-1) from Baseline in the STN1013800 group versus the Vehicle (Placebo) group
Mean change of MRD-1 from Baseline (Day1, Hour 0) in the STN1013800 group versus the Vehicle (Placebo) group at other timepoints
Time frame: Day 1 at Minute 5, Minute 15, Hour 2; Day 14 at Minute 5, Minute 15, Hour 6; Day 42 at Minute 5, Minute 15
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Santen Pharmaceutical Co., Ltd.