Safety and Efficacy of OMS302 in Subjects Undergoing Intraocular Lens Replacement With Phacoemulsification (OMS302-ILR-003)

A Phase 3 Randomized, Double-Masked, Placebo-Controlled Study of the Effect of OMS302 on Intraoperative Pupil Diameter and Early Postoperative Pain in Subjects Undergoing Intraocular Lens Replacement With Phacoemulsification

The purpose of this study is to determine the safety and efficacy of OMS302 (the study drug) for maintaining intraoperative mydriasis in individuals undergoing Intraocular Lens Replacement (ILR) surgery.

Study Overview

• Status: Completed
• Conditions: Intraocular Lens Replacement
• Intervention / Treatment: Drug: OMS302; Drug: Placebo

• Study Type: Interventional
• Enrollment (Actual): 405
• Phase: Phase 3

Contacts and Locations

Study Locations

• United States
  • Arizona
    • Chandler, Arizona, United States, 85224
    • Glendale, Arizona, United States, 85308
  • California
    • Los Angeles, California, United States, 90013
  • Florida
    • Cape Coral, Florida, United States, 33904
    • Fort Myers, Florida, United States, 33901
    • Stuart, Florida, United States, 34994
  • Minnesota
    • Bloomington, Minnesota, United States, 55431
  • Missouri
    • Saint Louis, Missouri, United States, 63131
    • Washington, Missouri, United States, 63090
  • New Mexico
    • Albuquerque, New Mexico, United States, 87113
  • New York
    • New York, New York, United States, 10021
  • Tennessee
    • Goodlettsville, Tennessee, United States, 37072
  • Texas
    • Austin, Texas, United States, 78731
    • Houston, Texas, United States, 77024
    • San Antonio, Texas, United States, 78229
  • Utah
    • Salt Lake City, Utah, United States, 84132

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Competent and willing to voluntarily provide informed consent
• 18 years of age or older
• In good general health needing to undergo cataract extraction or lens extraction with lens replacement surgery in one eye, under topical anesthesia

Exclusion Criteria:

• No allergies to the medications and/or the active ingredients of any of the study medications
• No medications with the same activities of the active ingredients in OMS302 for defined time intervals prior to and after surgery
• No other significant eye injuries, eye conditions or general medical conditions likely to interfere with the evaluation of the study medication

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: OMS302; OMS302 diluted in Balanced Salt Solution and administered as irrigation solution during Intraocular Lens Replacement surgery.	Drug: OMS302; OMS302 drug product will be supplied as a sterile, clear colorless liquid, free from particulates of foreign matter. Each vial contains a nominal 4.5 mL solution containing 60.75 millimolar (mM) phenylephrine hydrochloride (HCl) and 11.25 mM ketorolac tromethamine formulated in a 20 mM sodium citrate buffer (pH 6.3 +/- 0.5). For administration to patients, 4.4 mL of the drug product is added to a 500 mL bottle of commercially available balanced salt solution (BSS) through a syringe filter. This will achieve 4.0 mL of the drug product in a 500 mL bottle of BSS.
Placebo Comparator: Placebo; Placebo diluted in Balanced Salt Solution and administered as irrigation solution during Intraocular Lens Replacement surgery.	Drug: Placebo; Placebo drug product will be supplied as a sterile, clear colorless liquid, free from particulates of foreign matter. Each vial contains a nominal 4.5 mL solution containing 20 mM sodium citrate buffer (pH 6.3 +/- 0.5). For administration to patients, 4.4 mL of the drug product is added to a 500 mL bottle of commercially available BSS through a syringe filter. This will achieve 4.0 mL of the drug product in a 500 mL bottle of BSS.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean Area-under-the-Curve (AUC) Analysis of Change From Baseline in Pupil Diameter (mm) During Surgery	Change in pupil diameter over time from surgical baseline (immediately prior to surgical incision) to the end of the surgical procedure (wound closure) was summarized using descriptive statistics by treatment arm and time-point (every minute). The primary analysis of the change in pupil diameter was based on the mean area-under-the-curve (AUC) pupil diameter change from baseline. First, the AUC of the pupil diameter from surgical baseline to wound closure was calculated using the trapezoidal rule. Second, the mean AUC was obtained by dividing the AUC by the total time of surgery. Third, the mean AUC of change from baseline was calculated by subtracting the baseline pupil diameter from the mean AUC.	from surgery baseline (pre-incision) through surgery end (time of cortical clean-up/wound closure)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean Area-under-the-Curve Analysis of Ocular Pain Visual Analog Scale (VAS) Score Within 12 Hours Postoperatively	The primary analysis of the ocular pain VAS (where 0 = no pain and 100 = worst possible pain) was based on the mean area-under-the-curve (AUC). The AUC of the ocular pain VAS during 12 hours postoperatively was calculated by the trapezoidal rule in which the hour 11 was used to represent the time-point 10-12 hours. The mean AUC was defined as the AUC divided by the number of hours with ocular pain VAS results during the first 12 hours postoperatively.	12 hours
Photophobia at 6 Hours After Surgery (Ocular Pain and Symptoms Numerical Ordinal Scale [Numerical Rating System - NRS] Scores)	Photophobia outcomes based on Ocular Pain and Symptoms Numerical Ordinal Scale (Numerical Rating System - NRS) at 6 hours postoperatively.	Six hours postoperatively
Photophobia at Day 1 After Surgery (Ocular Pain and Symptoms Numerical Ordinal Scale [Numerical Rating System - NRS] Scores)	Photophobia outcomes based on Ocular Pain and Symptoms Numerical Ordinal Scale (Numerical Rating System - NRS) at Day 1 postoperatively	One day
Best Corrected Visual Acuity (BVCA) Log Score on Day 1	Best-Corrected Visual Acuity (BCVA) summarized by the Early Treatment Diabetic Retinopathy Study (ETDRS) visual acuity log score. For subjects without a score due to inability to read the ETDRS chart, the log score was imputed as 1.6 for the purpose of treatment comparisons. Subjects without a score because the manifest refraction was not completed were excluded from the analysis.	One day
Ocular Inflammation in Summed Ocular Inflammation Score (SOIS) Grade on Day 1	The mean SOIS summarized by treatment arm and time point on Day 1 postoperatively. Ocular inflammation was evaluated by measuring the anterior chamber cell count and flare using a slit lamp biomicroscope. SOIS was calculated by adding the average of subject's anterior chamber cells and flare grades. The minimum SOIS was 0 (indicating absence of inflammation), whereas the maximum SOIS was 8. Grading was as follows: Anterior Chamber Cells: Grade None = 0/no cells; Grade Mild = +1/1-5 cells; Grade Moderate = +2/6-15 cells; Grade Severe = +3/16-30 cells; Grade Very Severe = +4/>30 cells. Anterior Chamber Flare: Grade None = 0/no Tyndall effect; Grade Mild = +1/barely discernable Tyndall effect; Grade Moderate = +2/moderately intense Tyndall beam in anterior chamber; Grade Severe = +3/severely intense Tyndall beam; Grade Very Severe = +4/very severely intense Tyndall beam with a white and milky appearance to the aqueous	One day
Ocular Pain VAS Score After Day of Surgery - Day 1	Pain VAS scores (where 0 = no pain and 100 = worst possible pain) after the day of surgery summarized by treatment arm and time-point.	One day

Collaborators and Investigators

• Sponsor: Omeros Corporation
• Investigators: Study Director: Steve Whitaker, MD, Omeros Corporation

Study record dates

Study Major Dates

• Study Start: September 1, 2011
• Primary Completion (Actual): March 1, 2012
• Study Completion (Actual): March 1, 2012

Study Registration Dates

• First Submitted: October 13, 2011
• First Submitted That Met QC Criteria: October 13, 2011
• First Posted (Estimate): October 18, 2011

Study Record Updates

• Last Update Posted (Estimate): August 21, 2014
• Last Update Submitted That Met QC Criteria: August 5, 2014
• Last Verified: August 1, 2014

More Information

Terms related to this study

• Keywords: cataract; lens replacement
• Other Study ID Numbers: OMS302 ILR 003