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PharmakokineticPhase 1NCT01199341

A Drug-Drug Interaction Study to Study the Effect of AZD1981 on Warfarin

A Phase 1 study testing AZD1981 and Warfarin in people with Pharmakokinetic, run by AstraZeneca at 1 site in Sweden.

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

The primary purpose of this study is to determine whether the treatment with AZD1981 affect the exposure of Warfarin. Read more about this study

Who is it for?
Ages 18 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Pharmakokinetic
What is being tested?
AZD1981 and Warfarin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
1 siteSweden
Study dates
Oct 2010to Dec 2010
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 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Have a body mass index between 19 and 30 kg/m2 and weight at least 65 kg and no more than 100 kg
  • Be a non-smoker or ex-smoker who has stopped smoking for >6 months prior to screening
  • Volunteers must be willing to use barrier methods of contraception during study and 3 months after the end of their participation in the study

Who cannot join

  • Volunteer that is inferred to have an increased sensitivity to warfarin based on genotype of CYP2C9 and VKORC1.
  • Any clinically significant disease or disorder
  • Any clinically relevant abnormal findings in physical examination

Trial locations and contacts

1 site in 1 country.

Sweden1 site
  • Research Site

    Uppsala

Other trials in Sweden

About this study

Official title: A Phase I, Open Label, Randomised, Parallel Group Study of Repeated Oral Doses of AZD1981 (100 mg Twice Daily and 400 mg Twice Daily) for Two Weeks and Single Doses of Warfarin (25 mg) to Evaluate the Pharmacokinetic Interaction of AZD1981 and Warfarin and the Effect of AZD1981 on Warfarin Pharmacodynamics in Healthy Male Volunteers

The primary purpose of this study is to determine whether the treatment with AZD1981 affect the exposure of Warfarin.

Conditions
Pharmakokinetic
Being tested
AZD1981, Warfarin
Keywords
Phase 1, Drug-Drug interaction, warfarin, AZD1981

What participants receive

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

  • AZD1981Drug

    100 mg per oral, twice daily for 14 days

  • WarfarinDrug

    Also called Waran

    10 x 2.5 mg per oral, once daily at day 1 and day 15

  • AZD1981Drug

    4 x 100 mg per oral, twice daily for 14 days

Study groups in NCT01199341
Study groupRoleWhat they receive
Treatment AExperimentalAZD1981, low dose, + Warfarin
Receives: Drug: AZD1981; Drug: Warfarin
Treatment BExperimentalAZD1981, high dose, + Warfarin
Receives: Drug: Warfarin; Drug: AZD1981

What is being measured

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

  1. Pharmacokinetics for (R)- and (S)-Warfarin, respectively measured by Cmax and Area Under the Curve (AUC)

    Measured: PK sampling will be performed regularly from Day 1 to Day 22

Secondary outcomes (3)
  1. Explore possible changes in the anticoagulative activity of Warfarin measured by INR .

    Measured: Will be performed at screening and at all visits during the study period.

  2. Pharmacokinetics for AZD1981 measured by AUCτ, Css,max, tmax,ss and CLss/F

    Measured: PK sampling will be performed regularly from Day 15 to Day 22.

  3. Safety and tolerability of AZD1981

    Measured: Safety will be monitored continuously and safety assessments will be made on several occasions throughout the whole study.

Timeline

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

  1. First posted10 Sep 2010 (estimated)
  2. Study startOct 2010
  3. Primary completionDec 2010
  4. Study completionDec 2010

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
Parallel groups
Masking
None (open label)
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01199341
Sponsor's protocol ID
D9830C00017
Other IDs
2010-021956-24
Status last verified
Feb 2011
First submitted
9 Sep 2010
Last updated
9 Feb 2011
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing AZD1981 and Warfarin in people with Pharmakokinetic, run by AstraZeneca at 1 site in Sweden.

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 3 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 Feb 2011. 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 Sweden. 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?

Pharmacokinetics for (R)- and (S)-Warfarin, respectively measured by Cmax and Area Under the Curve (AUC) (time frame: PK sampling will be performed regularly from Day 1 to Day 22). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 Feb 2011; AzTrials last refreshed its copy on 30 Oct 2026.

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