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RecruitingNCT06683651Updated May 15, 2026

A Study in Chinese Patients With Acquired Blepharoptosis

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

Phase
Phase 3
Study type
Interventional
Enrollment
180
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

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.

02

Conditions studied

  • Blepharoptosis

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03

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • At least one eye diagnosed with acquired blepharoptosis and presence of all the following criteria at screening:

    • Loss of reliable Leicester Peripheral Field Test (LPFT) of ≥ 8 points in the top 2 rows (LPFT Eligibility Score); subjects had to see at least 9 total points in the top 4 rows (LPFT Total Score).
    • This criterion had to be met in both the Visit 1 Hour 0 (V1H0) and Visit 1 Hour 6 (V1H6) LPFT assessments.
    • There had to be ≤4 points of variance between the V1H0 and the V1H6 LPFT Eligibility Score.
    • The Marginal Reflex Distance-1 (MRD-1), the distance from the pupil center to the margin of upper lid, ≤ 2 mm (no visible pupil center defaults to 0) in the same eye
    • Visual acuity is 0.25 decimals (i.e., Snellen 20/80) or better according to standard logarithmic visual acuity chart in the same eye
  • Presence of all the following criteria at baseline:

    • Loss of reliable LPFT of ≥8 points in the top 2 rows (LPFT Eligibility Score) in the same eye; subjects had to see at least 9 total points in the top 4 rows (LPFT Total Score).
    • This criterion had to be met in the Visit 2 Hour 0 (V2H0) LPFT assessment
    • There had to be ≤4 points of variance between the V1H6 and the V2H0 LPFT Eligibility Score;
    • The MRD-1, the distance from the pupil center to the margin of upper lid, ≤ 2 mm (no visible pupil center defaults to 0) in the same eye
    • Visual acuity is 0.25 decimals (i.e., Snellen 20/80) or better according to standard logarithmic visual acuity chart in the same eye
  • Female subjects are 1-year postmenopausal, surgically sterilized, or females of childbearing potential (females who had started their menstrual cycles) with a negative urine pregnancy test at screening. Females of childbearing potential had to use an acceptable form of contraception throughout the study.

Exclusion Criteria: In the study eye

  • Dermatochalasis that extended less than 3 mm above the upper eyelid margin.
  • Pseudoptosis (upper eyelid dermatochalasis that overhung the upper eyelid margin).
  • In either eye: Congenital ptosis; Horner syndrome; Marcus Gunn jaw-winking syndrome; Myasthenia gravis.
  • Mechanical ptosis, including ptosis due to orbital or lid tumour, cicatricial processes affecting the movements of the upper lid, and enophthalmos.
  • Previous ptosis surgery (previous blepharoplasty [only] was allowed provided the surgery took place > 3 months prior to screening).
  • Lid position affected by lid or conjunctival scarring; Visual field loss from any cause other than ptosis; History of herpes keratitis.
  • History of closed/narrow angle glaucoma (unless patent peripheral iridotomy had been performed > 3 months prior to screening).
  • Periocular neurotoxin (e.g., Botox®, Dysport®) injections within 3 months prior to screening and during the study.
  • Topical application of bimatoprost (i.e., Latisse®) to the eyelashes within 7 days prior to screening and during the study.
  • Use of topical ophthalmic medications including but not limited to anti-allergy [e.g., antihistamines like Emadine®, Patanol®], dry eye [e.g., Diquas®, Beifushu®; except artificial tears like Hyaluronate], antimicrobial drugs [e.g., antibiotics and antivirals like Cravit®,Tobrex®, Aciclovir], and anti-inflammatory drugs
  • Current punctal plugs or placement of punctal plugs during the study.
  • Current use of over-the-counter (OTC) vasoconstrictor/decongestant eye medication or any ophthalmic or non-ophthalmic α-adrenergic agonist including OTC products at any time during the study.
04

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
180 participants (estimated)

Study arms

  • Experimental
    STN1013800 ophthalmic solution

    0.1% STN1013800 ophthalmic solution administered once daily

    Drug: STN1013800 ophthalmic solution

  • Placebo comparator
    STN1013800 ophthalmic solution Liquid Base, without STN1013800

    STN1013800 ophthalmic solution Liquid Base, without STN1013800 administered once daily

    Drug: STN1013800 ophthalmic solution Liquid Base, without STN1013800

Interventions

  • DrugSTN1013800 ophthalmic solution

    Investigational Product: 0.1% STN1013800 ophthalmic solution

  • DrugSTN1013800 ophthalmic solution Liquid Base, without STN1013800

    Placebo control: STN1013800 ophthalmic solution Liquid Base, without STN1013800

05

What researchers measure

Primary outcomes

  1. 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)

Secondary outcomes

  1. 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)

  2. 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

06

Study locations

23 of 23 sites recruiting
  • Anhui Provincial Hospital
    Hefei, Anhui, China
    • Dr Wen · Contact
    Recruiting
  • The Second Hospital of Anhui Medical University
    Hefei, Anhui, China
    • Dr Tao · Contact
    Recruiting
  • Beijing Chaoyang Hospital, Capital Medical University
    Beijing, Beijing Municipality, China
    • Dr Tao · Contact
    Recruiting
  • Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong
    Shantou, Guangdong, China
    • Dr Zhang · Contact
    Recruiting
  • Affiliated Hospital of Guizhou Medical University
    Guiyang, Guizhou, China
    • Dr Gu · Contact
    Recruiting
  • The first affiliated hospital of Zhengzhou University
    Zhengzhou, He'nan, China
    • Dr Li · Contact
    Recruiting
  • The 2nd Affiliated Hospital of Harbin Medical University
    Ha’erbin, Helongjiang, China
    • Dr Sun · Contact
    Recruiting
  • Wuhan Aier Eye Hospital
    Wuhan, Hubei, China
    • Dr Wang · Contact
    Recruiting
  • Xiangyang Central Hospital
    Xiangyang, Hubei, China
    • Dr Mao · Contact
    Recruiting
  • Nanjing First Hospital
    Nanjing, Jiangsu, China
    • Dr Li · Contact
    Recruiting
  • The second norman bethune hospital of Jilin University
    Changchun, Jilin, China
    • Dr Su · Contact
    Recruiting
  • Dalian No.3 Peple's Hospital
    Dali, Liaoning, China
    • Dr Zhang · Contact
    Recruiting
  • The 4TH People's Hospital of Shenyang
    Shenyang, Liaoning, China
    • Dr Xu · Contact
    Recruiting
  • The affiliated People's Hospital of Ningbo
    Zhenjiang, Ningbo, China
    • Dr Zhang · Contact
    Recruiting
  • Shandong Eye Hospital
    Jinan, Shandong, China
    • Dr Shi · Contact
    Recruiting
  • Eye & Ent Hospital of Fudan University
    Shanghai, Shanghai Municipality, China
    • Dr Sun · Contact
    Recruiting
  • Shanxi Eye Hospital
    Taiyuan, Shanxi, China
    • Dr Ren · Contact
    Recruiting
  • Panzhihua Hospital of Integrated Chinese and Western Medicine
    Panzhihua, Sichuan, China
    • Dr Zhou · Contact
    Recruiting
  • Tianjin Eye Hospital
    Tianjin, Tianjin Municipality, China
    • Dr Zhao · Contact
    Recruiting
  • Sir Run Run Shaw Hospital (SRRSH), affiliated with the Zhejiang University School of Medicine
    Hangzhou, Zhejiang, China
    • Dr Wang · Contact
    Recruiting
  • The First Affiliated Hospital of Zhejiang University School of Medicine
    Hangzhou, Zhejiang, China
    • Dr Cui · Contact
    Recruiting
  • Eye Hospital, Wenzhou Medical University / Zhejiang Eye Hospital
    Wenzhou, Zhejiang, China
    • Dr Wang · Contact
    Recruiting
  • Beijing Luhe Hospital, Capital Medical University
    Beijing, China
    • Dr Zhang · Contact
    Recruiting
07

Registry details

Key details

Study ID
NCT06683651
Lead sponsor
Santen Pharmaceutical Co., Ltd.
Responsible party
Sponsor
First posted
Nov 12, 2024
Start date
Oct 22, 2024
Primary completion
Jun 2026 (estimated)
Completion
Jun 2026 (estimated)
Last update
May 15, 2026

Study contacts

Santen Pharmaceuticals Co., Ltd Clinical Operations
Contact
clinical@santen.co.jp
+81-6-4802-9341

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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