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Trial · NCT01001338

Allopurinol Combination Study

NCT01001338, Phase 2, Completed, Ardea Biosciences, Inc.

3 sourcestrials-2026-11-12-0.4.0

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ConductScience Library. Allopurinol Combination Study. Trials, record NCT01001338. Release trials-2026-11-12-0.4.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01001338

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Allopurinol Combination Study
NCT number
NCT01001338
Status
Completed
Phases
Phase 2
Enrollment
227 participants, actual
Lead sponsor
Ardea Biosciences, Inc.
Conditions
Gout
Interventions
RDEA594, Placebo, Allopurinol
First posted
2009-10-26
Last updated
2017-01-24

Source ClinicalTrials.gov

Registered outcomes8

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
Primary
To compare the percent reduction from baseline in serum urate levels following 4 wks of continuous treatment of RDEA594 in combination with allopurinol to allopurinol alone in subjects with documented inadequate hypouricemic response.
28 days
Secondary
To evaluate the proportion of subjects whose sUA levels are < 6.0 mg/dL, < 5.0 mg/dL and < 4.0 mg/dL at each study visit by treatment group in all subjects and in subjects who have an sUA ≥6 mg/dL at the baseline visit.
28 days and through extension
SecondaryTo evaluate the absolute and percent reduction from baseline in sUA levels at each visit.28 days and through extension
SecondaryTo evaluate the percentage change in 24-hour urine urate level (excretion) from baseline to Day 28.28 days and through extension
SecondaryTo evaluate the incidence of gout flares.28 days and through extension
SecondaryTo evaluate the safety and tolerability of RDEA594 in combination with allopurinol in subjects with gout.28 days and through extension
SecondaryTo compare the multiple-dose pharmacokinetics (PK) of allopurinol and oxypurinol in the absence versus presence of RDEA594 co-administration.28 days
SecondaryTo evaluate the proportion of subjects whose sUA level decreases to or is maintained at <6.0 mg/dL and <5.0 mg/dL in the Double-Blind and Open-Label Extension Period.3 years

Outcomes0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

None in this release.

Results by group0

Each measurement the trial posted, group by group, in the words and numbers it posted.

None in this release.

Participant flow0

How many started, completed or left each group, period by period.

None in this release.

Adverse events0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

None in this release.

Adverse event totals0

The totals the trial posted for each group.

None in this release.

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
26742777DERIVED

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT01001338

GET https://conductscience.org/api/trials/v1/NCT01001338/registered