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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: 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 ]
    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   (Adult, Senior)
Sexes Eligible for Study:   All
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

Keywords provided by Alcon Research:

Additional relevant MeSH terms:
Triamcinolone hexacetonide
Triamcinolone Acetonide
Triamcinolone diacetate
Anti-Inflammatory Agents
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Immunosuppressive Agents
Immunologic Factors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on May 23, 2017