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CompletedNCT06981104Updated Nov 20, 2025

Tear Film Stability and Improvement of Asthenopia: Efficacy Observation of 0.05% Cyclosporine in Dry Eye Patients With Short BUT

An interventional study of 0.05% cyclosporine eyedrops and 0.1% sodium hyaluronate eye drop in Dry Eye Disease (DED) and Asthenopia, sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University. Completed at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-11-20.

Sponsored by Second Affiliated Hospital, School of Medicine, Zhejiang University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Nov 2024, registered May 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

At present, research on cyclosporine mainly focuses on patients with moderate to severe dry eye. Based on the importance of the vicious cycle of inflammation in the pathogenesis of dry eye and the mechanism of cyclosporine, investigators believe that it may also have therapeutic effects in patients with mild to moderate dry eye, and may have certain advantages compared to traditional artificial tear therapy. In summary, this study intends to use a randomized, double-blind, parallel controlled trial to evaluate the therapeutic efficacy and safety of 0.05% cyclosporine eye drops in patients with mild to moderate dry eyes.

02

Conditions studied

  • Dry Eye Disease (DED)
  • Asthenopia
03

In context

Dry Eye Syndromes

1,366 studies on the registry are indexed under Dry Eye Syndromes; 207 are open to participants now.

This study's enrollment of 60 is close to the median of 60 across 1,129 interventional studies indexed under Dry Eye Syndromes.

Browse Dry Eye Syndromes studies →

Lead sponsor

Second Affiliated Hospital, School of Medicine, Zhejiang University is the lead sponsor of 1,047 studies on the registry; 502 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
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. 18-75 years old (including 18 and 75 years old), male or female;
  2. Meets the diagnostic criteria for dry eye syndrome in China (2020) and is mild dry eye 1) Dry Eye Questionnaire (OSDI) score ≥ 13 points; 2) BUT ≤ 10 seconds or Schirmer I ≤ 5mm/5 minutes 3) Corneal staining positive ≤ 5 points.
  3. At least one of OSDI, BUT, and Schirmer I meets the moderate standard OSDI ≥ 23 points; BUT\<5 seconds; Schirmer I \< 5mm/5min
  4. The subjects themselves signed an form and voluntarily participated in this study.

Exclusion criteria

Exclusion Criteria:

  1. Women who are breastfeeding or pregnant, or men and women of childbearing age who are unable to use effective methods during the study period;
  2. Those who need to wear contact lenses during treatment;
  3. Acute inflammation, infection, allergy, and trauma of the eyes;
  4. There are obvious scars or keratinization on the eyelid margin;
  5. Have undergone eye or eyelid surgery within the 6 months prior to enrollment;
  6. Diagnosed with facial nerve paralysis or ocular nerve paralysis within 6 months prior to enrollment;
  7. Currently using lacrimal duct embolization (permanent lacrimal plug or treatment with lacrimal plug within 6 months);
  8. I am currently taking medication that may affect dry eye syndrome.
Terms in these criteria, in plain language(2)

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.

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Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

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05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
60 participants (actual)

Study arms

  • Experimental
    0.05% cyclosporine froup(Group C)

    Drug: 0.05% cyclosporine eyedrops

  • Placebo comparator
    0.1% sodium hyaluronate group(Group S)

    Drug: 0.1% sodium hyaluronate eye drop

Interventions

  • Drug0.05% cyclosporine eyedrops

    0.05% cyclosporine, one drop each time, twice a day

  • Drug0.1% sodium hyaluronate eye drop

    0.1% sodium hyaluronate, one drop each time, three times a day

06

What researchers measure

Primary outcomes

  1. Fluorescent tear film breakup time

    Time frame: 8weeks

  2. high-frequency component(HFC)

    HFC represents a slight deformation of the lens in a state of relative modulation stillness, indicating tremors in the ciliary muscle

    Time frame: 8weeks

  3. ASQ-17

    Asthenopia Survey Questionnaire (ASQ)-17,ASQ-17 covers 7 items of eye symptoms, 6 items of visual symptoms and 4 items of systemic and psychological symptoms with a total score of 51 and an optimal cut-off threshold value of 12.5\[1\]. \[1\]Lin N, Li XM, Yang MY, Tian L, Li ZH, Mao JL, Zhang JF, Chen J, Lyu F, Deng RZ. Development of a new 17-item Asthenopia Survey Questionnaire using Rasch analysis. Int J Ophthalmol. 2023 Nov 18;16(11):1867-1875. doi: 10.18240/ijo.2023.11.20. PMID: 38028524; PMCID: PMC10626358.

    Time frame: 8weeks

07

Study locations

1 site
  • 1 Xihu Avenue, Shangcheng District, Hangzhou, Zhejiang, China
    Hangzhou, Zhejiang, China
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06981104
Responsible party
Sponsor
First posted
May 20, 2025
Start date
Nov 18, 2024
Primary completion
Feb 14, 2025
Completion
Feb 14, 2025
Last update
Nov 20, 2025

Oversight

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

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This study is completed, as verified in Nov 2024. You cannot join it, but the record below documents what was studied.

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