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Comparison of Acular LS Versus Nevanac for Pain Control in Eyes Undergoing PRK

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00347204
Recruitment Status : Completed
First Posted : July 4, 2006
Last Update Posted : July 4, 2006
Information provided by:
Center For Excellence In Eye Care

Tracking Information
First Submitted Date  ICMJE June 29, 2006
First Posted Date  ICMJE July 4, 2006
Last Update Posted Date July 4, 2006
Study Start Date  ICMJE January 2006
Primary Completion Date Not Provided
Current Primary Outcome Measures  ICMJE
 (submitted: June 29, 2006)
  • Prevention of postoperative discomfort on postoperative days 1 to 5 after PRK
  • Best-corrected Visual acuity at all study visits
  • Degree of corneal haze at all study visits
  • Time to epithelial closure in each eye after PRK
Original Primary Outcome Measures  ICMJE Same as current
Change History No Changes Posted
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title  ICMJE Comparison of Acular LS Versus Nevanac for Pain Control in Eyes Undergoing PRK
Official Title  ICMJE Double Masked Evaluation of Acular LS Versus Nevanac for Postoperative Pain Control in Eyes Undergoing PRK
Brief Summary To determine the ability of two topical Nonsteroidal Anti-inflammatory drops (Acular LS & Nevanac) to help control pain following Photorefractive Keratectomy (PRK).
Detailed Description

Laser Vision Correction is the most commonly performed elective surgical procedure in the United States. Although Laser-Assisted in-situ Keratomileusis (LASIK) is the more popular technique, a growing number of surgeons have switched to surface ablation techniques, including PRK, LASEK and Epi-LASIK.1 With surface laser procedures, the corneal epithelium is removed by a variety of techniques (laser, manual debridement, diluted alcohol2,3, epi-keatome) prior to laser reshaping of the corneal stroma. Following the procedure, a contact lens is placed on the eye to promote epithelial regeneration. Due to the size of the epithelial defect, it can take between 3 to 6 days for the epithelium to regenerate. During this healing process, patients often complain of moderate to severe ocular pain, and delayed healing may result in an increased risk of infection or corneal haze4.

Over the past decade, a variety of methods have been used to assist with reducing pain following surface laser procedures. Topical Nonsteroidals have been shown in a number of studies to help reduce the degree of pain following PRK. Topical dilute tetracaine has also been shown to assist with the reduction of pain following PRK. Oral pain medications, such as Vioxx, Celebrex, and even Prednisone have been recommended as additional treatment options for pain control.

In October 2005, a new topical nonsteroidal anti-inflammatory drop, Nevanac, was approved by the FDA. Nevanac was approved with a a TID dosing schedule.

Acular LS is the current market leader for topical NSAID eye drops. Acular LS is typically used on a QID dosing schedule.

Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 4
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Condition  ICMJE
  • Myopia
  • Hyperopia
Intervention  ICMJE
  • Drug: ketorolac (Acular LS)
  • Drug: Nepafenac (Nevanac)
Study Arms  ICMJE Not Provided
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Completed
Enrollment  ICMJE
 (submitted: June 29, 2006)
Original Enrollment  ICMJE Same as current
Study Completion Date  ICMJE June 2006
Primary Completion Date Not Provided
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Patients undergoing PRK for myopia or hyperopia

Exclusion Criteria:


Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years to 80 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE Yes
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Not Provided
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT00347204
Other Study ID Numbers  ICMJE 5225
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Not Provided
Study Sponsor  ICMJE Center For Excellence In Eye Care
Collaborators  ICMJE Allergan
Investigators  ICMJE
Principal Investigator: William Trattler, MD Center For Excellence In Eye Care
PRS Account Center For Excellence In Eye Care
Verification Date June 2006

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP