RDEA3170 and Febuxostat Drug Interaction Study



Status:Completed
Conditions:Healthy Studies
Therapuetic Areas:Other
Healthy:No
Age Range:18 - 65
Updated:10/19/2013
Start Date:June 2013
End Date:November 2013
Contact:M Suster
Phone:858.652.6500

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A Phase 1 Study to Evaluate the Potential Pharmacokinetic and Pharmacodynamic Interactions Between RDEA3170 and Febuxostat in Healthy Adult Male Subjects


This study will evaluate the potential pharmacokinetic (PK) and pharmacodynamic (PD)
interaction between the XO inhibitor febuxostat and the investigational URAT1 inhibitor
RDEA3170 and provide information for potential future clinical studies using this
combination. Combination treatment using 2 drugs with different mechanisms of action may
achieve improved response and may allow the use of lower doses, resulting in fewer side
effects than the use of either drug alone.


Inclusion Criteria:

- body weight ≥ 50 kg (110 lbs.) and a body mass index ≥ 18 and ≤ 40 kg/m2.

- no clinically relevant abnormalities in vital signs, ECG, physical examination or
safety laboratory values, per the Investigator's judgment.

- a screening serum urate level ≥ 4.5 mg/dL.

Exclusion Criteria:

- history or suspicion of kidney stones.

- history of cardiac abnormalities as assessed during screening, including abnormal and
clinically relevant electrocardiogram changes and/or family history of sudden death
in otherwise healthy individual between the ages of 1 and 30 years.

- undergone major surgery within 3 months prior to Day 1.

- donated blood or experienced significant blood loss (> 450 mL) within 12 weeks prior
to Day 1 or gave a plasma donation within 4 weeks prior to the Screening Period.

- inadequate venous access or unsuitable veins for repeated venipuncture.
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