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A Study of Dotinurad Versus Allopurinol in Participants With Gout

A Phase 3, Randomized, Double-Blind, Multicenter Study to Evaluate the Efficacy and Safety of Dotinurad Compared With Allopurinol in Adult Participants With Hyperuricemia Associated With Gout

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07089875
Enrollment
500
Registered
2025-07-28
Start date
2025-08-01
Completion date
2027-11-29
Last updated
2026-09-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gout

Keywords

Dotinurad, Allopurinol, Hyperuricemia

Brief summary

The primary objective of this study is to evaluate the efficacy of dotinurad in lowering serum uric acid (sUA) at Week 24 compared with allopurinol in adult participants with hyperuricemia associated with gout.

Interventions

DRUGAllopurinol

Over-encapsulated tablets containing active drug substance administered orally (PO).

Over-encapsulated tablets containing active drug substance administered PO.

Sponsors

Crystalys Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Between 18 and 75 years of age (inclusive) at the time of signing informed consent. 2. Diagnosis of gout based on 2015 American College of Rheumatology (ACR)-European Union League Against Rheumatism (EULAR) criteria for at least 1 year. 3. Had at least 2 gout flares in the 12 months prior to Screening (reported by the participant or documented in the participant's medical records). 4. Participant must be on a stable background allopurinol dose of ≥300 mg/day (200 mg/day for those with moderate renal impairment as documented in the participant's medical history) up to 600 mg/day for at least 3 months prior to Screening and remain on their dosing regimen until Day 1. 5. sUA level ≥6.5 mg/dL at Screening Visit 1 (Day -35 Visit) and Screening Visit 2 (Day -7 Visit). 6. Female participants of childbearing potential must have a negative serum pregnancy test at Screening Visit 1 (Day -35 Visit) and Screening Visit 2 (Day -7 Visit), a negative urine pregnancy test on Day 1, and must not be breastfeeding. 7. Fertile male participants and female participants of childbearing potential must be willing to completely abstain from heterosexual sex or agree to use acceptable contraception from the time of signing informed consent through 30 days after the last dose of study drug.

Exclusion criteria

1. History of or presence of kidney stones within 1 year prior to Screening. 2. History of or presence of malignancy in the last 5 years other than treated cutaneous basal or squamous cell carcinoma. 3. Hypersensitivity or intolerance to dotinurad or to both colchicine and nonsteroidal anti-inflammatory drugs. 4. Known or suspected history of drug abuse, a positive drug test at Screening Visit 1, or a recent history of alcohol abuse. 5. Known history of or positive results for human immunodeficiency virus, Hepatitis B Surface Antigen, or Hepatitis C antibodies during Screening. 6. Current or historical evidence of any clinically significant disease or condition that, in the opinion of the Investigator, may compromise participant safety or study compliance or may confound interpretation of study results.

Design outcomes

Primary

MeasureTime frame
Percentage of Participants With an sUA Level <6.0 mg/dL at Week 24Week 24

Secondary

MeasureTime frame
Percentage of Participants With an sUA Level <6.0 mg/dL at Weeks 16, 20 and 24 InclusiveWeeks 16, 20 and 24
Mean Rate of Gout Flares Requiring Treatment From Week 36 Through Week 64Week 36 through Week 64
Percentage of Participants With an sUA level <5.0 mg/dL at Week 24 and no Gout Flares Requiring Treatment From Week 36 Through Week 64Week 24 and Week 36 through Week 64
Mean Change From Baseline in sUA at Week 24Baseline and Week 24
Percentage of Participants who do not Have a Gout Flare Requiring Treatment From Week 24 Through Week 64Week 24 through Week 64
Percentage of Participants With an sUA Level <6.0 mg/dL at Each VisitUp to Week 68
Percentage of Participants With an sUA Level <5.0 mg/dL at Each VisitUp to Week 68
Percentage of Participants With an sUA Level <4.0 mg/dL at Each VisitUp to Week 68
Absolute Change from Baseline in sUA Levels at Each VisitBaseline to Week 68
Percent Change from Baseline in sUA Levels at Each VisitBaseline to Week 68
Percentage of Participants With a Gout Flare Requiring Treatment at Each Visit Between Week 24 and the end of StudyWeek 24 to Week 68
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs)Day 1 through Week 68
Percentage of Participants With Serious Adverse Events (SAEs)Day 1 through Week 68

Countries

Poland, Spain, United States

Contacts

CONTACTClinical Trial Lead
ClinicalTrials@crystalystx.com1-858-379-2316

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 4, 2026