Combining Lesinurad With Allopurinol in Inadequate Responders

Last updated: July 11, 2016
Sponsor: Ardea Biosciences, Inc.
Overall Status: Completed

Phase

3

Condition

Collagen Vascular Diseases

Arthritis And Arthritic Pain (Pediatric)

Musculoskeletal Diseases

Treatment

N/A

Clinical Study ID

NCT01510158
RDEA594-301
  • Ages 18-85
  • All Genders

Study Summary

This study that compare the serum uric acid lowering effects, clinical benefits, and safety of lesinurad in combination with allopurinol to allopurinol alone in subjects with gout who have had an inadequate response to allopurinol.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Subject is able to understand the study procedures, the risks involved and willing toprovide written informed consent before the first study related activity.

  • Subject meets the diagnosis of gout as per the American Rheumatism AssociationCriteria for the Classification of Acute Arthritis of Primary Gout.

  • Subject has been taking allopurinol as the sole urate-lowering therapy indicated forthe treatment of gout for at least 8 weeks prior to the Screening Visit at a stable,medically appropriate dose, as determined by the investigator, of at least 300 mg perday (at least 200 mg for subjects with moderate renal impairment).

  • Subject must be able to take gout flare prophylaxis with colchicine or an Nonsteroidalanti-inflammatory drug (NSAID) (including Cox-2 selective NSAID) ± PPI.

  • Subject has an sUA level ≥ 6.5 mg/dL at the Screening Visit and ≥ 6.0 mg/dL at Day -7Visit.

  • Subject has reported at least 2 gout flares in the prior 12 months.

  • Body mass index (BMI) < 45 kg/m2

Exclusion

Exclusion Criteria:

  • Subject with known hypersensitivity or allergy to allopurinol.

  • Subject who is taking any other approved urate-lowering medication that is indicatedfor the treatment of gout other than allopurinol within 8 weeks of the ScreeningVisit.

  • Subject who is pregnant or breastfeeding.

  • Subject who consumes more than 14 drinks of alcohol per week (eg, 1 drink = 5 oz [150mL] of wine, 12 oz [360 mL] of beer, or 1.5 oz [45 mL] of hard liquor).

  • Subject with a history or suspicion of drug abuse within the past 5 years.

  • Subject that requires or may require systemic immunosuppressive or immunomodulatorytreatment.

  • Subject with known or suspected human immunodeficiency virus (HIV) infection.

  • Subject with a positive test for active hepatitis B or hepatitis C infection.

  • Subject with a history of malignancy within the previous 5 years with the exception ofnon-melanoma skin cancer that has been treated with no evidence of recurrence, treatedcervical dysplasia or treated in situ Grade 1 cervical cancer.

  • Subject within the last 12 months with: unstable angina, New York Heart Associationclass III or IV heart failure, myocardial infarction, stroke, or deep venousthrombosis; or subjects currently receiving anticoagulants.

  • Subject with uncontrolled hypertension.

  • Subject with an estimated creatinine clearance < 30 mL/min.

  • Subject with active peptic ulcer disease requiring treatment.

  • Subject with a history of xanthinuria, active liver disease, or hepatic dysfunction.

  • Subject receiving chronic treatment with more than 325 mg of salicylates per day.

  • Subject taking valpromide, progabide, or valproic acid.

  • Subject who has received an investigational therapy within 8 weeks or 5 half-lives (whichever is longer) prior to the Screening Visit.

  • Subject with any other medical or psychological condition, which might create unduerisk to the subject or interfere with the subject's ability to comply with theprotocol requirements, or to complete the study.

Study Design

Total Participants: 607
Study Start date:
January 01, 2012
Estimated Completion Date:
August 31, 2014

Study Description

Allopurinol is the standard of care for the treatment of gout. Nevertheless, most patients treated with allopurinol do not achieve the recommended serum urate (sUA) target of < 6.0 mg/dL and need additional therapy to achieve the target. Probenecid and benzbromarone are uric acid transporter 1 (URAT1) inhibitors, generally recommended as second-line agents for patients who are either resistant to or intolerant of allopurinol. However, benzbromarone is not available in the US and probenecid is rarely used. Consequently, there is a clear unmet medical need for a new safe and effective therapy for gout, such as lesinurad, a potent URAT1 inhibitor, that can be used in combination with allopurinol in patients not responding adequately to allopurinol monotherapy so that very high rates of response can be achieved by nearly all gout patients, rather than a minority.The subjects selected for this study will have moderate to severe gout with an inadequate response to allopurinol

Connect with a study center

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