Safety and Efficacy of Vitreous Delineating Agent During Vitrectomy

This study has been completed.
Information provided by (Responsible Party):
Alcon Research Identifier:
First received: September 19, 2007
Last updated: April 3, 2012
Last verified: April 2012
The purpose of this study is to evaluate the safety and efficacy of triamcinolone acetonide suspension when used for visualization of structures in the back of the eye during eye surgery.

Condition Intervention Phase
Drug: Triamcinolone Acetonide Injectable Suspension
Phase 3

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Single Blind (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Clinical Evaluation of the Safety and Efficacy of Triamcinolone Acetonide Suspension for Visualization During Vitrectomy Surgery

Resource links provided by NLM:

Further study details as provided by Alcon Research:

Primary Outcome Measures:
  • Change in Mean Visualization Score at Post-Instillation from Pre-Instillation [ Time Frame: Day 0 ] [ Designated as safety issue: No ]
    A video image of the posterior segment structures of the eye was taken before instillation of the test product and after. An independent masked reader evaluated the images and graded the degree of visualization on a 5-point scale ranging from 1 to 4 and anchored at the ends by "Not Visible (0)" and "Clearly Delineated (4)." The mean difference was calculated, and a higher number indicated increased visibility.

Enrollment: 60
Study Start Date: September 2007
Study Completion Date: September 2007
Primary Completion Date: September 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Triamcinolone
Approximately 1-4 mg (0.025-0.1 cc) as needed for visualization during pars plana vitrectomy with or without membrane removal.
Drug: Triamcinolone Acetonide Injectable Suspension
Approximately 1-4 mg (0.025-0.1 cc) as needed for visualization during pars plana vitrectomy with or without membrane removal.


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

Inclusion Criteria:

  • Patients planning to undergo pars plana vitrectomy with good vision in the non-surgery eye.
  • Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

  • Patients under 18.
  • Patients with previous vitrectomy, elevated intraocular pressure (IOP) and/or history of ocular inflammatory disease.
  • Other protocol-defined exclusion criteria may apply.
  Contacts and Locations
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No Contacts or Locations Provided
  More Information

Responsible Party: Alcon Research Identifier: NCT00532415     History of Changes
Other Study ID Numbers: C-05-62 
Study First Received: September 19, 2007
Last Updated: April 3, 2012
Health Authority: United States: Institutional Review Board
United States: Food and Drug Administration

Keywords provided by Alcon Research:

Additional relevant MeSH terms:
Triamcinolone Acetonide
Triamcinolone diacetate
Triamcinolone hexacetonide
Anti-Inflammatory Agents
Enzyme Inhibitors
Hormones, Hormone Substitutes, and Hormone Antagonists
Immunologic Factors
Immunosuppressive Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs processed this record on May 26, 2016