Combining Lesinurad with Allopurinol in Inadequate Responders - CLEAR 1

Study identifier:RDEA594-301

ClinicalTrials.gov identifier:NCT01510158

EudraCT identifier:N/A

CTIS identifier:N/A

Study Complete

Official Title

A Phase 3 Randomized, Double-Blind, Multicenter, Placebo-Controlled, Combination Study to Evaluate the Efficacy and Safety of Lesinurad and Allopurinol Compared to Allopurinol Alone in Subjects with Gout who have had an Inadequate Hypouricemic Response to Standard of Care Allopurinol.

Medical condition

Gout

Phase

Phase 3

Healthy volunteers

Study drug

Lesinurad, Placebo, Allopurinol

Sex

All

Actual Enrollment

607

Study type

Interventional

Age

18 Years - 85 Years

Date

Study Start Date: 01 Jan 2012

Primary Completion Date: 01 Jul 2014

Study Completion Date: 01 Aug 2014

Study design

Allocation: Randomized
Endpoint Classification: Safety/Efficacy
Intervention Model: Parallel Assignment
Masking: Double Blind
Primary Purpose: Treatment

Verification:

Verified 01 Jul 2016 by Ardea Biosciences, Inc.

Collaborators

Inclusion and exclusion criteria

Inclusion Criteria

•Subject is able to understand the study procedures, the risks involved and willing to provide written informed consent before the first study related activity.
•Subject meets the diagnosis of gout as per the American Rheumatism Association Criteria for the Classification of Acute Arthritis of Primary Gout.
•Subject has been taking allopurinol as the sole urate-lowering therapy indicated for the 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 per day (at least 200 mg for subjects with moderate renal impairment).
•Subject must be able to take gout flare prophylaxis with colchicine or an Nonsteroidal anti-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 -7 Visit.
•Subject has reported at least 2 gout flares in the prior 12 months.
•Body mass index (BMI) < 45 kg/m2

Exclusion Criteria

•Subject with known hypersensitivity or allergy to allopurinol.
•Subject who is taking any other approved urate-lowering medication that is indicated for the treatment of gout other than allopurinol within 8 weeks of the Screening Visit.
•Subject who is pregnant or breastfeeding.
•Subject who consumes more than 14 drinks of alcohol per week (eg, 1 drink = 5 oz [150 mL] 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 immunomodulatory treatment.
•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 of non-melanoma skin cancer that has been treated with no evidence of recurrence, treated cervical dysplasia or treated in situ Grade 1 cervical cancer.
•Subject within the last 12 months with: unstable angina, New York Heart Association class III or IV heart failure, myocardial infarction, stroke, or deep venous thrombosis; 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 undue risk to the subject or interfere with the subject's ability to comply with the protocol requirements, or to complete the study.

No locations available

Arms	Assigned Interventions
Experimental: lesinurad 200 mg + allopurinol	Drug: Lesinurad Tablets, 200 mg once daily (qd) Drug: Allopurinol Tablets, ≥ 300 mg QD (≥ 200 mg qd for subjects with moderate renal impairment)
Experimental: lesinurad 400 mg + allopurinol	Drug: Lesinurad Tablets, 400 mg qd Drug: Allopurinol Tablets, ≥ 300 mg QD (≥ 200 mg qd for subjects with moderate renal impairment)
Placebo Comparator: Placebo + allopurinol	Drug: Placebo Tablets, Placebo qd Drug: Allopurinol Tablets, ≥ 300 mg QD (≥ 200 mg qd for subjects with moderate renal impairment)

Documents available

http://www.gouttrial.com
Download
Trial Results Summaries
Available here

Contacts

Contact

Bill Rote

858-652-6527

Investigators

Principal Investigator

Chris Storgard

Ardea Biosciences, Inc.