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Lesinurad · Zurampic, RDEA594

Small molecule · Inhibitor of uric acid transporter 1 (URAT1) (SLC22A12) and organic anion transporter 4 (OAT4) (SLC22A11) · developed by Ironwood Pharms

Approved FDA, Dec 2015
IRWD Developer
1 Registered trials

What is Lesinurad?

Lesinurad is a uric acid reabsorption inhibitor that reduces serum uric acid levels by inhibiting URAT1 and OAT4 transporters in the kidney, increasing uric acid excretion. It is used in combination with allopurinol for treatment of hyperuricemia associated with gout in patients inadequately controlled on allopurinol alone.

Summary written with AI from the sources listed at the end of this page.

At a glance

Also known as
Zurampic, RDEA594
Drug type
Small molecule
Targets
uric acid transporter 1 (URAT1) (SLC22A12), organic anion transporter 4 (OAT4) (SLC22A11)
Mechanism
Inhibitor of uric acid transporter 1 (URAT1) (SLC22A12) and organic anion transporter 4 (OAT4) (SLC22A11)
Pathways
uric acid reabsorption, uric acid excretion
Therapy area
Metabolic, Musculoskeletal, Renal & urology
Developer
Ironwood Pharms Inc (IRWD)
FDA status
Approved as Zurampic (December 22, 2015), NDA207988 · FDA label
UNII
Q59CAT99RS

✅ FDA-approved uses

From the indications section of the FDA label (version of Dec 18, 2018). Read the full label for the exact wording, limitations and safety information.

🧪 Clinical trials

TrialPhaseConditionStatusSponsor
NCT03226899 Phase 4 Gout Terminated IRWD

Trials of the companies BioRadar tracks, from ClinicalTrials.gov, most advanced phase first.

Conditions studied

Chronic Kidney Disease (CKD)Gout

More from Ironwood Pharms

Sources

Updated Oct 3, 2026. Something wrong or missing? Report it on the IRWD page.

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Data: FDA (Drugs@FDA, Purple Book, DailyMed), NIH (NCI Thesaurus, GSRS, RxNorm), ClinicalTrials.gov • Informational purposes only, not medical or investment advice. • All drugs A–Z

This data is for informational purposes only, not investment advice. BioRadar does not provide buy/sell recommendations. Past performance does not guarantee future results. Always do your own due diligence.