Evaluation of Efficacy and Safety of AR882 and XOI Co-administration in Uricase Treatment Failed Patients

NCT ID: NCT07116746

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

25 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-03

Study Completion Date

2027-01-31

Brief Summary

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This study will assess the effect of AR882 and XOI co-administration on sUA lowering as well as reducing tophus burden in the population that has failed uricase treatment (eg., pegloticase). Failed uricase treatment is defined as having an inherent intolerance, anaphylaxis, infusion reaction, antibody development, and/or at least one sUA level that rose to greater than 6 mg/dL while on therapy.

Detailed Description

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Conditions

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Gout Gouty Arthritis Hyperuricemia Gout Chronic Refractory Gout Uncontrolled Gout Tophaceous Gout

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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AR882 75 mg + XOI

AR882 75 mg plus XOI low dose taken once daily starting on Day 1 for 2 weeks then titrate up to AR882 75 mg plus XOI high dose taken once daily for duration of 6-month treatment period in the Core Study Phase. Participants who complete the Core Study Phase can opt in to the Optional Extension Phase and continue to receive AR882 75 mg plus XOI high dose taken once daily for duration of an additional 6-month treatment period.

Group Type EXPERIMENTAL

AR882 75 mg

Intervention Type DRUG

Solid Oral Capsule

XOI Low Dose

Intervention Type DRUG

Solid Oral Tablet

XOI High Dose

Intervention Type DRUG

Solid Oral Tablet

Interventions

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AR882 75 mg

Solid Oral Capsule

Intervention Type DRUG

XOI Low Dose

Solid Oral Tablet

Intervention Type DRUG

XOI High Dose

Solid Oral Tablet

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* History of uncontrolled gout
* Presence of ≥1 clinically visible tophus
* Last uricase infusion occurred ≥3 months
* Body weight no less than 50 kg
* Serum creatinine must be \< 3.0 mg/dL and estimated CLcr ≥ 40 mL/min

Exclusion Criteria

* Malignancy within 5 years, except for successfully treated basal or squamous cell carcinoma of the skin
* Pregnant or breastfeeding
* History of symptomatic kidney stones within the past 6 months
* Received pegloticase, rasburicase or other experimental uricases within the last 3 months
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Arthrosi Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Robert Keenan, MD

Role: STUDY_DIRECTOR

Arthrosi Therapeutics, Inc.

Locations

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Arthrosi Investigative Site (105)

Margate, Florida, United States

Site Status RECRUITING

Arthrosi Investigative Site (102)

Miami, Florida, United States

Site Status RECRUITING

Arthrosi Investigative Site (103)

Duncansville, Pennsylvania, United States

Site Status RECRUITING

Arthrosi Investigative Site (104)

West Lake Hills, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Director Clinical Operations

Role: CONTACT

+1 858-437-9123

Other Identifiers

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AR882-204

Identifier Type: -

Identifier Source: org_study_id