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HealthyPhase 1NCT02170675

Relative Bioavailability of Single Doses of Dabigatran Etexilate When Administered Alone or in Combination With a Single Dose of Ketoconazole or in Combination With q.d. Ketoconazole at Steady State in Healthy Male and Female Volunteers

A Phase 1 study testing Dabigatran etexilate and Ketoconazole in people with Healthy, run by Boehringer Ingelheim.

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

To investigate whether and to what extent the P-glycoprotein (P-gp) inhibitor ketoconazole affects plasma exposure of dabigatran. Read more about this study

Who is it for?
Ages 21 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Dabigatran etexilate and Ketoconazole
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
No sites listed yet
Study dates
Jun 2009to Jul 2009
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 21 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy males and females according to the following criteria:
  • Based upon a complete medical history, including the physical examination, vital signs (BP, PR), 12-lead ECG, clinical laboratory tests
  • Age ≥21 and ≤50 years
  • BMI range ≥18.5 and ≤29.9 kg/m2 (Body Mass Index)
  • Signed and dated written informed consent prior to admission to the study in accordance with GCP and the local legislation.

Who cannot join

  • Any finding of the medical examination (including BP, PR and ECG) deviating from normal and of clinical relevance
  • Any evidence of a clinically relevant concomitant disease
  • Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
  • Surgery of the gastrointestinal tract (except appendectomy)
  • Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders
  • History of relevant orthostatic hypotension, fainting spells or blackouts.
Show all 24Show fewer
  • Chronic or relevant acute infections
  • History of relevant allergy/hypersensitivity (including allergy to drug or its excipients)
  • Intake of drugs with a long half-life (> 24 hours) within at least one month or less than 10 half-lives of the respective drug prior to administration or during the trial, and intake of drugs which might reasonably influence the results of the trial within four weeks prior to administration or during the trial (e.g. P-gp inducers)
  • Participation in another trial with an investigational drug within two months prior to administration or during the trial
  • Smoker (> 10 cigarettes or > 3 cigars or > 3 pipes/day)
  • Alcohol abuse (more than 60 g/day)
  • Drug abuse
  • Blood donation (more than 100 mL within four weeks prior to administration or during the trial)
  • Excessive physical activities (within one week prior to administration or during the trial)
  • Any laboratory value outside the reference range that was of clinical relevance
  • Inability to comply with dietary regimen of trial site
  • Intake of medication, which influences the blood clotting, such as acetylsalicylic acid and oral vitamin K antagonists
  • For female subjects:
  • Pregnancy / positive pregnancy test, or planning to become pregnant during the study or within 1 month of study completion
  • No adequate contraception during the study and until 1 month of study completion, i.e.
  • implants, injectables, combined oral contraceptives, IUD [intrauterine device], sexual abstinence (for at least 1 month prior to enrolment), or surgical sterilisation (incl.
  • hysterectomy). Females, who were not surgically sterile were asked to additionally use barrier contraception methods (e.g. condom, diaphragm with spermicide)
  • Lactation period

About this study

Official title: Relative Bioavailability of Single Doses of 150 mg Dabigatran Etexilate (Capsule) When Administered Alone or in Combination With a Single Dose of 400 mg Ketoconazole (Tablet) or in Combination With 400 mg q.d. Ketoconazole (Tablet) at Steady State in Healthy Male and Female Volunteers (an Open Label, Fixed Sequence, Phase I Study)

To investigate whether and to what extent the P-glycoprotein (P-gp) inhibitor ketoconazole affects plasma exposure of dabigatran.

Conditions
Healthy
Being tested
Dabigatran etexilate, Ketoconazole

What participants receive

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

  • Dabigatran etexilateDrug

  • KetoconazoleDrug

Study groups in NCT02170675
Study groupRoleWhat they receive
Dabigatran etexilate + KetoconazoleExperimentalPeriod 1 - Dabigatran etexilate Period 2 - Dabigatran etexilate and single dose of 400 mg Ketoconazole on Day 8 and 9 Period 3 - Dabigatran etexilate and multiple doses of 400 mg Ketoconazole on Day 10 to 16
Receives: Drug: Dabigatran etexilate; Drug: Ketoconazole

What is being measured

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

  1. Area under the concentration-time curve of the analyte in plasma over the time interval from 0 extrapolated to infinity for total dabigatran

    Measured: up to Day 16

  2. Maximum measured concentration of the analyte in plasma for total dabigatran

    Measured: up to Day 16

Secondary outcomes (18)
  1. Area under the concentration-time curve of the analyte in plasma over the time interval from 0 extrapolated to infinity for free dabigatran

    Measured: up to Day 16

  2. Maximum measured concentration of the analyte in plasma for free dabigatran

    Measured: up to Day 16

  3. Maximum measured concentration of the analyte in plasma for dabigatran and BIBR 1087 SE, BIBR 951 BS

    Measured: up to Day 16

  4. Time from dosing to the maximum concentration of the analyte in plasma for dabigatran and BIBR 1087 SE, BIBR 951 BS

    Measured: up to Day 16

  5. Area under the concentration-time curve of the analyte in plasma over the time interval from 0 to the time of the last quantifiable data point for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  6. Area under the concentration-time curve of the analyte in plasma over the time interval from timepoints t1 to t2 for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  7. Area under the concentration-time curve of the analyte in plasma over the time interval from 0 to 24 h for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  8. Time from dosing to the maximum concentration of the analyte in plasma for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  9. Terminal rate constant of the analyte in plasma for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  10. Terminal half-life of the analyte in plasma for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  11. Mean residence time of the analyte in the body after oral administration for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  12. Apparent clearance of the analyte in the plasma after extravascular administration for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  13. Apparent volume of distribution during the terminal phase λz following an extravascular dose for dabigatran

    Dabigatran after each single dose (free and total after conjugate cleavage)

    Measured: up to Day 16

  14. Changes from baseline in Vital signs (blood pressure [BP], pulse rate)

    Measured: up to 14 days after last drug administration

  15. Changes from baseline in 12-lead ECG

    Measured: up to 14 days after last drug administration

  16. Changes from baseline in Clinical laboratory tests (haematology, clinical chemistry, and urinalysis)

    Measured: up to 14 days after last drug administration

  17. Number of patients with adverse events

    Measured: up to 14 days after last drug administration

  18. Assessment of tolerability by the investigator

    Measured: up to 14 days after last drug administration

Timeline

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

  1. First posted23 Jun 2014 (estimated)
  2. Study startJun 2009
  3. Primary completionJul 2009

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
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02170675
Sponsor's protocol ID
1160.101
Status last verified
Jun 2014
First submitted
20 Jun 2014
Last updated
23 Jun 2014
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Dabigatran etexilate and Ketoconazole in people with Healthy, run by Boehringer Ingelheim.

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 5 inclusion and 24 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 23 Jun 2014. Status can change between updates, so confirm with the study contact before making plans.

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?

Area under the concentration-time curve of the analyte in plasma over the time interval from 0 extrapolated to infinity for total dabigatran (time frame: up to Day 16). The study lists 2 primary outcomes in all. 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 23 Jun 2014.

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