The Effects of Diquafosol Tetrasodium Ophthalmic Solution, 2% in Subjects With Dry Eye Disease

This study has been completed.
Information provided by:
Merck Sharp & Dohme Corp. Identifier:
First received: January 27, 2009
Last updated: September 20, 2011
Last verified: September 2011

The purpose of this study is to confirm the safety and efficacy of diquafosol tetrasodium ophthalmic solution, 2% vs. placebo, in subjects with dry eye disease.

Condition Intervention Phase
Dry Eye Disease
Drug: Diquafosol tetrasodium ophthalmic solution, 2%
Drug: Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • Proportion of subjects that achieve clearing of fluorescein staining of the central cornea (NEI scale). Subjects must have a score of 0 on the NEI scale at Week 6 to be considered responders. [ Time Frame: 6 weeks ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Proportion of subjects that achieve a 2-or-more-unit reduction of fluorescein staining of the central cornea (NEI scale) [ Time Frame: 6 weeks ] [ Designated as safety issue: No ]

Enrollment: 490
Study Start Date: January 2009
Study Completion Date: January 2010
Primary Completion Date: January 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Arm 2 Drug: Placebo
One to two drops in each eye QID for 6 weeks
Experimental: Arm 1 Drug: Diquafosol tetrasodium ophthalmic solution, 2%
One to two drops in each eye QID for 6 weeks


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Have best corrected visual acuity in both eyes of at least +0.7 or better
  • Central corneal staining of 3 on the NEI scale
  • If female, are non-pregnant or non-lactating
  • Have a history of dry eye disease in both eyes
  • Have normal lid anatomy

Exclusion Criteria:

  • Unable to withhold the use of contact lenses during the study or 2 weeks prior to the study
  • Have had ocular surface surgery within the past year
  • Are considered legally blind in one eye
  • Have a serious medical condition which could confound study assessments
  Contacts and Locations
Please refer to this study by its identifier: NCT00831662

  Show 47 Study Locations
Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Study Director: Reza Haque, MD, PhD Medical Monitor, Inspire
  More Information

No publications provided

Responsible Party: Saiid Davari, Inspire Identifier: NCT00831662     History of Changes
Other Study ID Numbers: 03-113, P08637
Study First Received: January 27, 2009
Last Updated: September 20, 2011
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Keratoconjunctivitis Sicca
Dry Eye Syndromes
Eye Diseases
Conjunctival Diseases
Corneal Diseases
Lacrimal Apparatus Diseases processed this record on April 15, 2014