A Study of AC-201 Controlled-Release Tablet (CR Tablet) in Patients With Gout

Phase 2

Completed

• Conditions: Gout
• Interventions: Drug: Placebo; Drug: AC-201; Drug: Febuxostat

• Registration Number: NCT02287818
• Lead Sponsor: TWi Biotechnology, Inc.

Brief Summary

The study is designed to test the urate-lowering effect, safety, and tolerability of AC-201CR in an initial dosing period, followed by the addition of a ULT to test the efficacy and safety of the combination and prophylaxis of gout flares during ULT.

Detailed Description

AC-201CR is a control released formulation of AC-201 that in previous clinical studies showed potential dual effects in both reducing serum uric acid (sUA) and gout flares. The mechanism of action of AC-201 includes the inhibition of the production and activity of caspase-1 and interleukin-1β (IL-1β), and selective inhibition of re-absorption transporters in the kidney. The goal of gout treatment is to reduce serum uric acid (sUA) concentrations below the urate solubility limit while avoiding acute gout flares. However, the initiation of urate-lowering therapy (ULT) increases the occurrence of acute gouty arthritis flares. IL-1β plays a key role in mediating this inflammatory response.

Study Timeline

• Study First Submitted: 2014-11-06
• Study First Submitted QC: 2014-11-06
• Study First Posted: 2014-11-11
• Study Start: 2014-12
• Primary Completion: 2016-10-27
• Study Completion: 2016-10-27
• Results First Submitted: 2020-10-05
• Results First Submitted QC: 2020-10-05
• Results First Posted: 2020-10-28
• Status Verified: 2022-06
• Last Update Submitted: 2022-06-02
• Last Update Posted: 2022-06-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 127

Inclusion Criteria

1. Male or female age 20 to 65 years, inclusive.
2. Meets ≥6 of the 12 American College of Rheumatology preliminary criteria (1977) for the classification of acute arthritis of primary gout (Appendix 2), OR have proven tophus or documented monosodium urate (MSU) crystals in the joint fluid.
3. Serum uric acid ≥7.5 mg/dL and ≤10 mg/dL at screening with ≥1 gouty arthritis flare within one year prior to screening, OR serum uric acid ≥9 mg/dL and ≤10 mg/dL at screening with or without prior gout flares.

Exclusion Criteria

1. Use of allopurinol, febuxostat, benzbromarone, probenecid, or sulfinpyrazone within 2 weeks prior to screening.
2. Occurrence of a gouty arthritis flare within 1 week prior to screening or during the screening period through baseline.
3. Use of colchicine within 1 week prior to screening.
4. Use of Glucocorticoids, NSAIDs or COX-2 inhibitors within 1 week prior to screening.
5. Allergy, contraindication, or intolerance to febuxostat.
6. Severe renal impairment.
7. Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) concentration >2 times the upper limit of laboratory normal range (>2x ULN) at screening.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Placebo	Placebo	Placebo plus Febuxostat
Placebo	Febuxostat	Placebo plus Febuxostat
AC-201	AC-201	AC-201 CR tablet plus Febuxostat
AC-201	Febuxostat	AC-201 CR tablet plus Febuxostat

Primary Outcome Measures

Name	Time	Method
Proportion of Subjects Achieving Serum Uric Acid Concentration <6.0 mg/dL	8 weeks

Trial Locations

Locations (1)

Taipei Veteran General Hospital (TVGH); 🇨🇳 Taipei, Taiwan