NCT06016010

Brief Summary

The objective is to compare the USL and placebo in terms of efficacy and safety, and to determine the appropriate dosage.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jan 2024

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 23, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 29, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

January 1, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

September 11, 2023

Status Verified

September 1, 2023

Enrollment Period

2 years

First QC Date

August 23, 2023

Last Update Submit

September 7, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • TBUT(Tear break-up time)

    The tear break-up time test measures the time in seconds. The time is from the last blinking to the point of tear layer defect or streak-like defect after blinking the eye with 1% of fluorescein. 10 seconds or more as normal, between 5 and 10 seconds as mild dry eye syndrome, and 5 seconds or less as severe dry eye syndrome.

    Screening, 6 week, 12 week, 14 week

Secondary Outcomes (7)

  • OSDI(Ocular Surface Disease Index)

    Screening, 6 week, 12 week, 14 week

  • VAS(Visual analog scale)

    0 week, 6 week, 12 week, 14 week

  • Schirmer's test

    0 week, 6 week, 12 week, 14 week

  • Meibomian gland test

    0 week, 6 week, 12 week, 14 week

  • Fluorescein corneal staining score - Oxford grading

    Screening, 6 week, 12 week, 14 week

  • +2 more secondary outcomes

Study Arms (3)

Standard-dose USL group

EXPERIMENTAL

2 tablets(1 USL, 1 placebo) b.i.d for 12 weeks

Drug: USLDrug: USL Placebo

High-dose USL group

EXPERIMENTAL

2 tablets(2 USL) b.i.d for 12 weeks

Drug: USL

Placebo group

PLACEBO COMPARATOR

2 tablets(2 placebo) b.i.d for 12 weeks

Drug: USL Placebo

Interventions

USLDRUG

500mg of Achyranthis Radix Extract

High-dose USL groupStandard-dose USL group

USL Placebo

Placebo groupStandard-dose USL group

Eligibility Criteria

Age19 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged over 19
  • Screening both eyes, the corrected visual acuity is 0.2 or more
  • Subjects with Fluorescein Corneal Staining score (Oxford grading) ≥ 2 or TBUT test ≤10 at screening
  • Subjects with OSDI ≥ 13
  • Subjects who voluntarily agreed to participate in this clinical study in written form

You may not qualify if:

  • Current or history of ocular disorders possibly affecting the study results (ocular surgery, trauma, diseases) as followings within 2 months:
  • Abnormal eyelid function: disorders of the eyelids or eyelashes
  • Ocular allergies or currently under the treatment of allergic diseases of the eye (topical ocular mast cell stabilizer, antihistamine use, etc.)
  • Cicatricial keratoconjunctivitis caused by herpetic keratopathy, conjunctival scarring (alkali damage, Steven-Johnson syndrome, cicatricial pemphigoid), pterygium, pinguecula, lack of congenital lacrimal, neurogenic keratitis, keratoconus, corneal transplantation
  • Those with acute eye inflammation/infection within 1 month
  • Those who have undergone eye surgery (including LASIK/LASIK) within 3 months
  • Those who had taken lacrimal punctal occlusion, cauterization of the punctum, or intense pulsed light procedure within 3 months
  • Those who wear contact lenses within 72 hours of screening or plan to wear contact lens during the study period
  • Intraocular pressure (IOP)\> 25 mmHg in more than one side
  • Autoimmune disease (e.g., Sjogren's syndrome, Rheumatoid arthritis, systemic lupus erythematosus, Graves' disease)
  • Those who have used cyclosporine or diquafosol use in any form (systemic, topical) within 1 month
  • Medical condition or history within 1 month to be treated with topical agents besides artificial tears (glaucoma, ocular allergy, ocular inflammation/infectious disease, etc.)
  • Those who have taken or are taking steroid drugs or immunosuppressants (Azathioprine, Tacrolimus, Cyclosporin, Mycophenolate mofetil etc.) that may affect immune function within 3 months prior to screening
  • Those who had taken antihypertensive drugs such as antihistamine and beta blockers, diuretics, antidepressants (especially tricyclic antidepressants, Parkinson's treatment drugs, etc.) that can worsen dry eye cannot participate in this study
  • Severe abnormal liver function tests (Alanine transaminase (ALT) or Aspartate transaminase (AST) values ≥ 2 times the upper limit of normal) and abnormal renal function (Creatinine values ≥ 2 times the upper limit of normal)
  • +11 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Dry Eye Syndromes

Condition Hierarchy (Ancestors)

Lacrimal Apparatus DiseasesEye Diseases

Study Officials

  • Chan-Sik Kim, PhD

    Korea Institute of Oriental Medicine

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 23, 2023

First Posted

August 29, 2023

Study Start

January 1, 2024

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

September 11, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share