Pharmacokinetic, Safety and Efficacy Study of OMS201 in Subjects Undergoing Retrograde Ureteroscopic Removal of Upper Urinary Tract Stones

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: NCT00857090
Recruitment Status : Completed
First Posted : March 6, 2009
Last Update Posted : October 12, 2012
Information provided by (Responsible Party):
Omeros Corporation

Brief Summary:
The objectives of the study are to assess the systemic exposure, safety and efficacy of three concentrations of OMS201 in subjects undergoing retrograde ureteroscopic removal of upper urinary tract stones.

Condition or disease Intervention/treatment Phase
Urinary Calculi Urinary Stones Urinary Tract Stones Renal Calculi Kidney Stones Drug: OMS201 Drug: Vehicle Phase 1 Phase 2

Detailed Description:
The main objective is to estimate the systemic exposure of OMS201 in retrograde ureteroscopic treatment of upper urinary tract stones. Safety will be assessed by vital signs, laboratory values and adverse events. Exploratory efficacy measures will assess the effect of OMS201 on postoperative pain, duration of surgery and ease of placement of a ureteral access sheath.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 18 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
Official Title: Double-Blind, Placebo-Controlled, Concentration-Escalating, Pharmacokinetic Study Evaluating the Systemic Absorption, Safety, and Efficacy of OMS201 in Subjects Undergoing Ureteroscopic Treatment of Ureteral- or Renal Collecting System-Located Stones
Study Start Date : March 2009
Actual Primary Completion Date : December 2010
Actual Study Completion Date : December 2010

Arm Intervention/treatment
Experimental: 1
Drug: OMS201

Stage 1: OMS201 irrigation solution at 3X the base concentration during surgery

Stage 2: OMS201 irrigation solution up to 10X the base concentration during surgery

Placebo Comparator: 2
Drug: Vehicle
Stages 1-2: Vehicle irrigation solution during surgery

Primary Outcome Measures :
  1. Peak systemic exposure. [ Time Frame: Day of surgery ]

Secondary Outcome Measures :
  1. Safety [ Time Frame: Day 7 ]
  2. Degree of pain [ Time Frame: 7 days ]
  3. Duration of the operation [ Time Frame: Day of surgery ]
  4. Ease of placement of the ureteral access sheath [ Time Frame: Day of surgery ]

Information from the National Library of Medicine

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, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 18 - 65 years of age.
  • Subject is undergoing retrograde ureteroscopic removal of renal-collecting system or ureteral stones for which general anesthesia will be used.

Exclusion Criteria:

  • No allergies to any of the individual ingredients in OMS201.
  • Subject taking a prohibited medication.
  • Pregnant woman, nursing mother, or woman of child-bearing age unwilling to take contraception for the duration of the study.
  • Subject who has had a renal transplant, has a single kidney, has compromised renal function, or has evidence of papillary necrosis.
  • Subject who has evidence of a clinically significant urinary tract infection.
  • Subject who has a prior history of open or laparoscopic urinary tract surgery, or a history of a ureteral stricture.
  • Subject who has congenital anomalies that would engender an increased procedural safety risk.
  • Subject with a history of clinically significant chronic or episodic hypotension.
  • Subject's physical examination is significantly abnormal for purposes of the study as determined by the Investigator.
  • Subject's screening laboratory evaluations are not within normal limits AND abnormal results are determined by the Investigator to be clinically significant.
  • Subject is at risk from anesthesia.
  • Subject is on chronic diuretic use.
  • Subject has a present condition or history of any clinically significant medical disorder and is determined by the Investigator to be an unsuitable candidate for receipt of an investigational drug.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00857090

United States, California
University of California Irvine Medical Center
Orange, California, United States, 92868
United States, Colorado
Urology Center of Colorado
Denver, Colorado, United States, 80211
United States, Tennessee
Urology Associates
Nasville, Tennessee, United States, 37209
United States, Texas
Urology San Antonio Research
San Antonio, Texas, United States, 78229
Sponsors and Collaborators
Omeros Corporation

Responsible Party: Omeros Corporation Identifier: NCT00857090     History of Changes
Other Study ID Numbers: C08-001
First Posted: March 6, 2009    Key Record Dates
Last Update Posted: October 12, 2012
Last Verified: October 2012

Keywords provided by Omeros Corporation:
Urinary Calculi
Urinary Stones
Urinary Tract Stones
Renal Calculi
Kidney Stones

Additional relevant MeSH terms:
Kidney Calculi
Urinary Calculi
Pathological Conditions, Anatomical
Kidney Diseases
Urologic Diseases