Comparison of Efficacy and Ocular Surface Disease Assessment between BRIDIN-plus Eye drops and Combigan Eye drops in Glaucoma or Ocular Hypertensive Patients : Phase 4, Parallel Group Design, Investigator-blind, Active-control, Randomized, Multi-center Trial
The purpose of this clinical trial is to prove lower negative effects on ocular surface disease and higher patient compliance of a single-use formula BRIDIN-PLUS® eye drops group, comparing to a multi-use formula COMBIGAN® eye drops after 12 weeks of administration to glaucoma or ocular hypertensive patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
60
BRIDIN-plus Eye drops
Combigan Eye drops
Seungsoo Rho
Seoul, Seongnam, Bundang-gu, South Korea
Corneal staining test
Corneal staining score is evaluated according to the oxford grading system after blue fluorescein staining under a slit lamp biomicroscope of cobalt blue light source using a yellow filter. Corneal surface is divided into 3 areas and evaluated from grade 0 indicating that there is no staining to grade 5 indicating denser staining due to severe corneal defect. (The score ranges from 0 to 5, with higher scores indicate worse symtoms.)
Time frame: 12 weeks after administration
Conjunctival staining test
Conjunctival staining score is evaluated after blue fluorescein staining under a slit lamp biomicroscope, by NEI(The National Eye Institute) scale. Conjunctival surface is divided into 6 areas and evaluated from grade 0 indicating that there is no staining to grade 3 indicating denser staining due to severe conjunctival defect.
Time frame: 12 weeks after administration
Ocular surface disease index (OSDI)
Ocular surface disease index include 12 items comprising of assessment of vision related functioning (5 items), ocular symptoms(4 items) and environmental factors that may cause symptoms (3 items). Each item is 5-point Likert scale in which a higher score indicates more severe symptoms. A total score is classified as normal (0-12), mild (13-22), moderate (23-32) and severe (33 or more) and it is evaluated based on grades and score changes
Time frame: 12 weeks after administration
Questionnaire (Evaluation of Satisfaction with Medication, Ocular tolerance)
treatment administration satisfaction and ocular tolerance are evaluated through questionnaires. Treatment administration satisfaction questionnaire includes the convenience of use and storage of investigational products and ocular tolerance evaluation questionnaire includes symptom severity(0\~3) and symptom duration(briefly, persistent) for 8 symptoms of stinging/burning, sticky eyes, itching, blurred vision, foreign-body sensation, dryness, photophobia, pain. Medication compliance is evaluated with MGL-MAQ-Korean version.
Time frame: 12 weeks after administration
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Corneal staining test
Corneal staining score is evaluated according to the oxford grading system after blue fluorescein staining under a slit lamp biomicroscope of cobalt blue light source using a yellow filter. Corneal surface is divided into 3 areas and evaluated from grade 0 indicating that there is no staining to grade 5 indicating denser staining due to severe corneal defect. (The score ranges from 0 to 5, with higher scores indicate worse symtoms.)
Time frame: 4 weeks after administration
Conjunctival staining test
Conjunctival staining score is evaluated after blue fluorescein staining under a slit lamp biomicroscope, by NEI(The National Eye Institute) scale. Conjunctival surface is divided into 6 areas and evaluated from grade 0 indicating that there is no staining to grade 3 indicating denser staining due to severe conjunctival defect.
Time frame: 4 weeks after administration
Ocular surface disease index (OSDI)
Ocular surface disease index include 12 items comprising of assessment of vision related functioning (5 items), ocular symptoms(4 items) and environmental factors that may cause symptoms (3 items). Each item is 5-point Likert scale in which a higher score indicates more severe symptoms. A total score is classified as normal (0-12), mild (13-22), moderate (23-32) and severe (33 or more) and it is evaluated based on grades and score changes
Time frame: 4 weeks after administration
IOP(Intraocular pressure)
The same tonometer (Goldman applanation tonometer) should be used. In the case of bilateral glaucoma, intraocular pressure of the right eye is first measured and a higher one is used. If intraocular pressures of both eyes are the same, intraocular pressures of the right eye is used. In unilateral glaucoma, intraocular pressures of an eye with glaucoma is used.
Time frame: 4, 12 weeks after administration
Tear break up time (TBUT)
Corneal staining score is evaluated after blue fluorescein staining on a 6-point scale according to oxford grading system under a slit lamp biomicroscope with a yellow filter offering cobalt blue light. After blue fluorescein staining, a participant is asked to blink their eyes. Then, time from the last blinking to the point when black spots, lines or loss of fluorescein are observed is measured in seconds under a slit lamp biomicroscope with a yellow filter offering cobalt blue light. The mean value of three repeated measurement results are used
Time frame: 4, 12 weeks after administration
Hyperemia score
Prior to fluorescein staining, hyperemia evaluation is done to the bulbar conjunctiva and the limbus, the border between cornea and conjunctiva using Efron Grading Scales. grade 0: normal; grade 1: trace; grade 2: mild; grade 3: moderate; grade 4: severe (The scales from grade 0 to 4, with higer scales indicate greater severity of symptoms.)
Time frame: 4, 12 weeks after administration