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CompletedNCT04155918Updated Nov 19, 2020

Phase 2a Study of AR882 Alone and in Combination With Febuxostat or Allopurinol in Gout Patients

A Phase 2 interventional study of Group 1: AR882 Alone and in Combination with Febuxostat (FBX) and Group 2: AR882 Alone and in Combination with Allopurinol (ALLO) in Gout Patients, sponsored by Arthrosi Therapeutics. Completed at 1 site in New Zealand. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2020-11-19.

Sponsored by Arthrosi Therapeutics · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Sep 2020, 6 years 1 month ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The study is designed to evaluate the PK/PD, safety and tolerability of AR882 alone or in combination with febuxostat or allopurinol when administered to gout patients.

02

Conditions studied

  • Gout Patients

Browse trials for

Keywords

  • Hyperuricemia
  • Gout
  • URAT1
03

In context

Gout

232 studies on the registry are indexed under Gout; 45 are open to participants now.

This study's enrollment of 30 is below the median of 121 across 202 interventional studies indexed under Gout.

Browse Gout studies →

Lead sponsor

Arthrosi Therapeutics is the lead sponsor of 10 studies on the registry; none are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • History of gout
  • sUA > 7 mg/dL
  • Estimated Glomerular Filtration Rate (eGFR) ≥ 60 mL/min/1.73m2

Key Exclusion Criteria:

  • Malignancy within 5 years, except for successfully treated basal or squamous cell carcinoma of the skin
  • History of cardiac abnormalities
  • Active peptic ulcer disease or active liver disease
  • History of kidney stones
  • Allergy or intolerance to colchicine, febuxostat, and allopurinol
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
30 participants (actual)

Study arms

  • Experimental
    AR882/FBX

    Drug: Group 1: AR882 Alone and in Combination with Febuxostat (FBX)

  • Experimental
    AR882/ALLO

    Drug: Group 2: AR882 Alone and in Combination with Allopurinol (ALLO)

Interventions

  • DrugGroup 1: AR882 Alone and in Combination with Febuxostat (FBX)

    AR882 + Febuxostat, AR882 alone, Febuxostat alone

    Also known as: Febuxostat (Adenuric®, Uloric®)

  • DrugGroup 2: AR882 Alone and in Combination with Allopurinol (ALLO)

    AR882 + Allopurinol, AR882 alone, Allopurinol alone

    Also known as: Allopurinol (Allosig®, Progout®, Zyloprim®)

06

What researchers measure

Primary outcomes

  1. PD profile of AR882 administered alone or in combination with febuxostat

    Profile from serum uric acid concentration over time

    Time frame: 22 Days

  2. PD profile of AR882 administered alone or in combination with allopurinol

    Profile from serum uric acid concentration over time.

    Time frame: 22 Days

  3. Serum uric acid (sUA) response rate

    sUA response rate to achieve sUA \<6, \<5, \<4, and \<3 mg/dL

    Time frame: 22 Days

Secondary outcomes

  1. Area under the curve (AUC) for plasma AR882

    Profile from plasma in terms of AUC for AR882

    Time frame: 22 Days

  2. Time to maximum plasma concentration (Tmax) for AR882

    Profile from plasma in terms of Tmax for AR882

    Time frame: 22 Days

  3. Maximum plasma concentration (Cmax) for AR882

    Profile from plasma in terms of Cmax for AR882

    Time frame: 22 Days

  4. Apparent terminal half-life (t1/2) for AR882

    Profile from plasma in terms of t1/2 for AR882

    Time frame: 22 Days

  5. Amount excreted (Ae) into urine for AR882

    Profile from urine in terms of Ae for AR882

    Time frame: 22 Days

  6. Renal clearance (CLr) for AR882

    Profile from urine in terms of CLr for AR882

    Time frame: 22 Days

  7. AUC for plasma for febuxostat

    Profile from plasma in terms of AUC for febuxostat

    Time frame: 22 Days

  8. Tmax for febuxostat

    Profile from plasma in terms of Tmax for febuxostat

    Time frame: 22 Days

  9. Cmax for febuxostat

    Profile from plasma in terms of Cmax for febuxostat

    Time frame: 22 Days

  10. t1/2 for febuxostat

    Profile from plasma in terms of t1/2 for febuxostat

    Time frame: 22 Days

  11. AUC for plasma allopurinol/oxypurinol

    Profile from plasma in terms of AUC for allopurinol/oxypurinol

    Time frame: 22 Days

  12. Tmax for allopurinol/oxypurinol

    Profile from plasma in terms of Tmax for allopurinol/oxypurinol

    Time frame: 22 Days

  13. Cmax for allopurinol/oxypurinol

    Profile from plasma in terms of Cmax for allopurinol/oxypurinol

    Time frame: 22 Days

  14. t1/2 for for allopurinol/oxypurinol

    Profile from plasma in terms of t1/2 for allopurinol/oxypurinol

    Time frame: 22 Days

  15. Ae in urine for allopurinol/oxypurinol

    Profile from urine in terms of Ae for allopurinol/oxypurinol

    Time frame: 22 Days

  16. CLr for allopurinol/oxypurinol

    Profile from urine in terms of CLr for allopurinol/oxypurinol

    Time frame: 22 Days

  17. AUC for plasma for colchicine

    Profile from plasma in terms of AUC for colchicine

    Time frame: 22 Days

  18. Tmax for colchicine

    Profile from plasma in terms of Tmax for colchicine

    Time frame: 22 Days

  19. Cmax for colchicine

    Profile from plasma in terms of Cmax for colchicine

    Time frame: 22 Days

  20. t1/2 for for colchicine

    Profile from plasma in terms of t1/2 for colchicine

    Time frame: 22 Days

  21. Incidence of Adverse Events, changes in laboratory, electrocardiogram, and vital signs

    Time frame: 28 Days

07

Study locations

1 site
  • Christchurch Clinical Studies Trust, Ltd (CCST)
    Christchurch, New Zealand
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 19, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04155918
Lead sponsor
Arthrosi Therapeutics
Responsible party
Sponsor
First posted
Nov 7, 2019
Start date
Feb 3, 2020
Primary completion
Sep 3, 2020
Completion
Sep 3, 2020
Last update
Nov 19, 2020

Study contacts

Christopher Wynne, MBChB, Grad Dip Pharm Med
principal investigator · Christchurch Clinical Studies Trust Ltd

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Nov 2020. You cannot join it, but the record below documents what was studied.

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