Combination Treatment Study in Subjects With Tophaceous Gout With Lesinurad and Febuxostat

Completed · Phase 3 · Has a placebo group

Conditions studied: Tophaceous Gout

In brief

This study will compare the serum uric acid lowering effects, clinical benefits, and safety of lesinurad in combination with febuxostat to febuxostat alone in patients with tophaceaous gout.

Key facts

Study ID

NCT01510769

Run by

Ardea Biosciences, Inc.

People needed

330

Starts

2012-01-01

Expected to finish

2014-06-01

Last updated by the study team

2016-05-26

Who can join

Age: 18 and older, up to 85. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• 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 is willing to adhere to the visit/protocol schedules.
• Subject meets the diagnosis of gout as per the American Rheumatism Association
• Criteria for the Classification of Acute Arthritis of Primary Gout.
• Subject meets one of the following criteria:
• Subjects who are not currently taking an approved ULT must have an sUA value of ≥ 8 mg/dL (476 µmol/L).
• Subjects entering the study on a medically appropriate dose of febuxostat or allopurinol must have an sUA value of ≥ 6.0 mg/dL (357 µmol/L).
• Subject must be able to take gout flare prophylaxis with colchicine or non-steroidal anti-inflammatory drug (NSAID) (including Cox-2 selective NSAID) ± PPI.
• Subject with at least 1 measurable tophus on the hands/wrists and/or feet/ankles ≥ 5 mm and ≤ 20 mm in the longest diameter.
• Body mass index (BMI) < 45 kg/m2

You may not qualify if…

• Subject with known hypersensitivity or allergy to febuxostat.
• Subject who is taking any approved urate-lowering medication other than allopurinol or febuxostat that is indicated for the treatment of gout within 8 weeks of the Screening Visit.
• Subject who previously received pegloticase.
• 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 with a history of myositis/myopathy or rhabdomyolysis.
• 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 thrombosis; or subjects currently receiving anticoagulants.
• Subject with uncontrolled hypertension.
• Subject with an estimated creatinine clearance < 30 mL/min.
• Subjects with a creatine kinase > 2.5 x ULN at any time during the Screening Period.
• 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 in the opinion of the Investigator and/or Medical Monitor, 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.

Where it is running

• Study site — Goodyear, Arizona, United States
• Study site — Peoria, Arizona, United States
• Study site — Pheonix, Arizona, United States
• Study site — Tucson, Arizona, United States
• Study site — Little Rock, Arkansas, United States
• Study site — Little Rock, Arkansas, United States
• Study site — Glendale, California, United States
• Study site — Huntington Beach, California, United States
• Study site — Irvine, California, United States
• Study site — La Jolla, California, United States
• Study site — Los Angeles, California, United States
• Study site — Rancho Cucamonga, California, United States
• Study site — San Diego, California, United States
• Study site — Denver, Colorado, United States
• Study site — Denver, Colorado, United States
• Study site — Englewood, Colorado, United States
• Study site — Trumball, Connecticut, United States
• Study site — Washington D.C., District of Columbia, United States
• Study site — Boynton Beach, Florida, United States
• Study site — Brooksville, Florida, United States
• Study site — East Brandenton, Florida, United States
• Study site — Fleming Island, Florida, United States
• Study site — Miami, Florida, United States
• Study site — Napels, Florida, United States
• Study site — Birmingham, Alabama, United States

Full record on ClinicalTrials.gov

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