The efficacy of diquafosol eyedrops in dry eye syndrome

ISRCTN ISRCTN44290046
DOI https://doi.org/10.1186/ISRCTN44290046
Secondary identifying numbers N/A
Submission date
03/05/2014
Registration date
27/05/2014
Last edited
27/05/2014
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Eye Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Dry eye disease occurs when the eyes do not make enough tears or the tears evaporate too quickly, leading to the eyes drying out and becoming inflamed (red and swollen) and irritated. Our goal is to compare the effectiveness of preservative-free sodium hyaluronate and diquafosol combination treatment, treatment with diquafosol alone and preserved sodium hyaluronate alone in treating dry eye disease.

Who can participate?
Patients aged over 21 with dry eye disease can take part in this study.

What does the study involve?,
Patients were randomly allocated to one of three groups: Group 1 (50 patients) was treated with preserved sodium hyaluronate , Group 2 (50 patients) with diquafosol, and Group 3 (50 patients) with diquafosol and preservative-free sodium hyaluronate eyedrops for 3 months. We will perform various tests and laboratory measurements at the start of the study and 1, 2, and 3 months after the treatment.

What are the possible benefits and risks of participating?
Treatment of dry eye syndrome will relieve dry eye symptoms. There are no risks involved in this study.

Where is the study run from?
Bucheon St. Mary's Hospital (South Korea).

When is the study starting and how long is it expected to run for?
Recruitment started in early 2013. Participants were enrolled on the study for a period of 6 months between May 2013 and December 2013.

Who is funding the study?
National Research Foundation of Korea (NRF) (South Korea).

Who is the main contact?
Professor Eun Chul Kim
eunchol@hanmail.net

Contact information

Prof Eun Chul Kim
Scientific

Department of Ophthalmology
Bucheon St Mary's Hospital
327 Sosa-ro
Wonmi-gu
Gyeonggi-do
Bucheon
420-717
Korea, South

Study information

Study designProspective randomized controlled parallel-group study, 14/02/2011, NO: HC11RIM10003
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleAdditive effect of preservative-free sodium hyaluronate 0.1% in treatment of dry eye syndrome with diquafosol 3% eyedrops
Study objectivesPreservative-free lubricants can augment the treatment effect of diquafosol by enhancing ocular surface stabilization.
Ethics approval(s)Institutional review board regulations (IRB) of Bucheon St Mary's Hospital
Health condition(s) or problem(s) studiedDry eye syndrome
InterventionParticipants were randomized to one of the following three groups:
Group 1 (50 patients, 50 eyes) were treated with preserved sodium hyaluronate 0.1% eyedrops (Lacure, Samil, Seoul, Korea) (four times a day) in the 1, 2 and 3 months
Group 2 (50 patients, 50 eyes) were treated with diquafosol 3% eyedrops (four times a day) in the 1, 2 and 3 months
Group 3 (50 patients ,50 eyes) were treated with diquafosol 3% and preservative-free sodium hyaluronate 0.1% eyedrops (Tearin free, DHP Korea, Seoul, Korea) (four times a day) in the 1, 2 and 3 months
Intervention typeOther
Primary outcome measure1. Ocular surface disease index (OSDI) scoring
2. tBUT
3. Schirmer I test (without anesthesia)

All outcomes were measured before treatment and at 1, 2 and 3 months after the start of treatment.
Secondary outcome measures1. Corneal fluorescein staining
2. Conjunctival impression cytology

All outcomes were measured before treatment and at 1, 2 and 3 months after the start of treatment.
Overall study start date01/05/2013
Completion date01/12/2013

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants150 patients
Key inclusion criteria1. Low tear film break-up time (tBUT) (<5 seconds)
2. Low Schirmer I score (10 mm/5 minutes without anesthesia)
3. Mild corneal punctate fluorescein staining (staining score of ≥1) in either eye (scale 0 ~ 3)
4. At least 21 years old
Key exclusion criteria1. History of ocular injury, infection, non-dry eye ocular inflammation, trauma, or surgery within the prior 6 months
2. Presence of uncontrolled systemic disease
Date of first enrolment01/05/2013
Date of final enrolment01/12/2013

Locations

Countries of recruitment

  • Korea, South

Study participating centre

Department of Ophthalmology
Bucheon
420-717
Korea, South

Sponsor information

Bucheon St Mary's Hospital (South Korea)
Hospital/treatment centre

Department of Ophthalmology
327 Sosa-ro
Wonmi-gu
Gyeonggi-do
Bucheon
420-717
Korea, South

Website http://www.cmcbucheon.or.kr/
ROR logo "ROR" https://ror.org/01fpnj063

Funders

Funder type

Research organisation

National Research Foundation of Korea (NRF) (South Korea)
Private sector organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
한국연구재단이 창의적 연구와, National Research Foundation (South Korea), NRF
Location
Korea, South

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan