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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
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

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:
Dry Eye Syndromes
Eye Diseases
Keratoconjunctivitis Sicca
Conjunctival Diseases
Corneal Diseases
Lacrimal Apparatus Diseases
Ophthalmic Solutions
Pharmaceutical Solutions
Pharmacologic Actions
Therapeutic Uses processed this record on November 20, 2014