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HealthyPhase 1NCT01883167

RDEA3170 and Febuxostat Drug Interaction Study

A Phase 1 study testing RDEA3170 10 mg and Febuxostat 40 mg in people with Healthy, run by Ardea Biosciences, Inc. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will evaluate the potential pharmacokinetic (PK) and pharmacodynamic (PD) interaction between the XO inhibitor febuxostat and the investigational URAT1 inhibitor RDEA3170 and provide information for potential future clinical studies using this combination. Read more about this study

Who is it for?
Ages 18 to 65 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
RDEA3170 10 mg and Febuxostat 40 mg
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
21 participants
Where
1 siteUnited States
Study dates
Jun 2013to Dec 2013
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • body weight ≥ 50 kg (110 lbs.) and a body mass index ≥ 18 and ≤ 40 kg/m2.
  • no clinically relevant abnormalities in vital signs, ECG, physical examination or safety laboratory values, per the Investigator's judgment.
  • a screening serum urate level ≥ 4.5 mg/dL.

Who cannot join

  • history or suspicion of kidney stones.
  • history of cardiac abnormalities as assessed during screening, including abnormal and clinically relevant electrocardiogram changes and/or family history of sudden death in otherwise healthy individual between the ages of 1 and 30 years.
  • undergone major surgery within 3 months prior to Day 1.
  • donated blood or experienced significant blood loss (> 450 mL) within 12 weeks prior to Day 1 or gave a plasma donation within 4 weeks prior to the Screening Period.
  • inadequate venous access or unsuitable veins for repeated venipuncture.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Study site

    Kalamazoo, Michigan, 49007

Other trials in United States

About this study

Official title: A Phase 1 Study to Evaluate the Potential Pharmacokinetic and Pharmacodynamic Interactions Between RDEA3170 and Febuxostat in Healthy Adult Male Subjects

This study will evaluate the potential pharmacokinetic (PK) and pharmacodynamic (PD) interaction between the XO inhibitor febuxostat and the investigational URAT1 inhibitor RDEA3170 and provide information for potential future clinical studies using this combination. Combination treatment using 2 drugs with different mechanisms of action may achieve improved response and may allow the use of lower doses, resulting in fewer side effects than the use of either drug alone.

Conditions
Healthy
Being tested
RDEA3170 10 mg, Febuxostat 40 mg, placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • RDEA3170 10 mgDrug

    RDEA3170 10 mg once daily (qd)

  • Febuxostat 40 mgDrug

    Febuxostat 40 mg qd

  • placeboDrug

    placebo qd

Study groups in NCT01883167
Study groupRoleWhat they receive
FebuxostatExperimentalDays 1-7: febuxostat 40 mg qd. Days 8-14: RDEA3170 10 mg or placebo qd in combination with febuxostat 40 mg qd. Days 15-21: RDEA3170 10 mg or placebo qd.
Receives: Drug: RDEA3170 10 mg; Drug: Febuxostat 40 mg; Drug: placebo
RDEA3170ExperimentalDays 1-7: RDEA3170 10 mg or placebo qd. Days 8-14: RDEA3170 10 mg or placebo qd in combination with febuxostat 40 mg qd. Days 15-21: febuxostat 40 mg qd.
Receives: Drug: RDEA3170 10 mg; Drug: Febuxostat 40 mg; Drug: placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. PK profile of RDEA3170 from plasma and urine and febuxostat from plasma

    Profile from plasma and urine in terms of AUC, Tmax, Cmax, t1/2, Ae, and CLr

    AUC: area under the concentration-time curve; Tmax: time to maximum plasma concentration; Cmax: maximum plasma drug concentration; t1/2: apparent terminal half-life; Ae: amount excreted of unchanged drug into urine; CLr: renal clearance

    Measured: Days -1 (urine only), 7, 14, 21 and Days 8, 15, 22 (plasma only)

Secondary outcomes (2)
  1. PD profile of RDEA3170 and febuxostat alone and in combination

    Profile from serum and urine in terms of sUA concentration, renal clearance of uric acid, urine uric acid excretion amounts, and fractional excretion of uric acid.

    sUA: serum urate

    Measured: Days -1, 7, 14, 21 and Days 8, 15, 22 (serum only)

  2. Incidence of Adverse Events and Changes in Laboratory, Electrocardiogram, and Vital Signs Parameters

    Measured: 8 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jun 2013 (estimated)
  2. Study startJun 2013
  3. Primary completionSep 2013
  4. Study completionDec 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01883167
Sponsor's protocol ID
RDEA3170-105
Status last verified
Jan 2014
First submitted
18 Jun 2013
Last updated
9 Jan 2014
Results posted
No
Data monitoring committee
No

Publications

  • Rekic D, Johansson S, Leander J. Higher Febuxostat Exposure Observed in Asian Compared with Caucasian Subjects Independent of Bodyweight. Clin Pharmacokinet. 2021 Mar;60(3):319-328. doi: 10.1007/s40262-020-00943-6. Epub 2020 Sep 19.

    PubMed 32951150

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing RDEA3170 10 mg and Febuxostat 40 mg in people with Healthy, run by Ardea Biosciences, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

PK profile of RDEA3170 from plasma and urine and febuxostat from plasma (time frame: Days -1 (urine only), 7, 14, 21 and Days 8, 15, 22 (plasma only)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01883167, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Jan 2014.

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RDEA3170 and Febuxostat Drug Interaction Study | AzTrials