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Completed

NCT Number: NCT02171507

Relative Bioavailability of Dabigatran and Diclofenac After Dabigatran Etexilate and Diclofenac Single Dose Alone or Following Concomitant Multiple Oral Administrations in Healthy Male and Female Volunteers

To investigate the relative bioavailability of dabigatran with and without concomitant administration of diclofenac and the relative bioavailability of diclofenac with and without concomitant administration of dabigatran etexilate

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Key information

Conditions

Age range

18 year–55 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy males and females according to the following criteria: Based upon a complete medical history, including the physical examination, vital signs (blood pressure, pulse rate), 12-lead electrocardiogram, clinical laboratory tests
  • Age ≥18 and ≤55 years
  • Body mass index (BMI) ≥18.5 and BMI ≤29.9 kg/m2
  • Signed and dated written informed consent prior to admission to the study in accordance with GCP (Good Clinical Practice) and the local legislation

Exclusion criteria

  • Clinically relevant gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
  • Relevant surgery of gastrointestinal tract
  • History of any bleeding disorder including history of gastrointestinal erosions and ulcer or acute blood coagulation defect
  • Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders
  • History of relevant orthostatic hypotension, fainting spells or blackouts
  • Chronic or relevant acute infections
  • History of allergy/hypersensitivity (including drug allergy) which is deemed relevant to the objectives of the trial as judged by the investigator
  • 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
  • Use of drugs which might reasonably influence the results of the trial based on the knowledge at the time of protocol preparation within 10 days prior to administration or during the trial
  • Participation in another trial with an investigational drug within two months prior to administration or during the trial
  • 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 is of clinical relevance
  • Subjects with abnormal thrombocyte counts and any relevant deviation in the assessment of platelet function (PFA test) must be excluded
  • Inability to comply with dietary regimen of study centre
  • Females of child bearing potential who are pregnant, breast feeding or who are either not surgically sterile or are sexually active and not using an acceptable form of contraception as either the oral contraceptives since at least two months and the double barrier method, i.e. intrauterine device with spermicide and condom for the male partner
  • Male subjects must agree to minimize the risk of female partners becoming pregnant from the first dosing day until 3 months after the completion of the post study medical examination. Acceptable methods of contraception comprises barrier contraception and a medically accepted contraceptive method for the female partner (intra-uterine device with spermicide, hormonal contraceptive since at least two month)
  • Planned surgeries within four weeks following the end-of study examination
  • Intake of medication, which influences the blood clotting, i.e., acetylsalicylic acid, cumarin etc.
  • The subject is able to understand and comply with protocol requirements, instructions and protocol-stated restrictions
  • Vulnerable subjects (e.g. persons kept in detention).

Treatment and study plan

Dabigatran Etexilate

Drug

Diclofenac

Drug

Primary outcomes

  1. AUCτ,ss on Day 4 (area under the concentration-time curve of dabigatran in plasma at steady state over one dosing interval)

    Time frame: from pre-dose up to 72 hours post-dose

  2. Cmax,ss (maximum concentration of dabigatran in plasma at steady state)

    Time frame: from pre-dose up to 72 hours post-dose

  3. Cmax (maximal concentration of diclofenac in plasma)

    Time frame: from pre-dose up to 72 hours post-dose

  4. AUC0-infinity (area under the concentration-time curve of diclofenac in plasma extrapolated to infinity)

    Time frame: from pre-dose up to 72 hours post-dose

  5. aPTT (activated partial thromboplastin time) and ECT (Ecarin clotting time) with and without diclofenac

    Time frame: from pre-dose up to 72 hours post-dose

  6. AUERτ,ss (area under the effect ratio-time curve of dabigatran in plasma at steady state over a uniform dosing interval τ)

    Time frame: from pre-dose up to 72 hours post-dose

  7. ERmax,ss (maximal effect ratio of dabigatran in plasma at steady state)

    Time frame: from pre-dose up to 72 hours post-dose

Secondary outcomes

  1. AUC0-tz,ss (area under the concentration-time curve of dabigatran in plasma from the time point 0 after the last dose at steady state to the last quantifiable dabigatran plasma concentration within the uniform dosing interval τ)

    Time frame: from pre-dose up to 72 hours post-dose

  2. tz,ss (time of last measurable concentration of dabigatran in plasma within the dosing interval τ at steady state)

    Time frame: from pre-dose up to 72 hours post-dose

  3. tmax,ss (time from last dosing to the maximum concentration of dabigatran in plasma at steady state on Day 4)

    Time frame: from pre-dose up to 72 hours post-dose

  4. CL/Fss (apparent clearance of dabigatran in the plasma at steady state after extravascular multiple dose administration)

    Time frame: from pre-dose up to 72 hours post-dose

  5. CLR,ss (renal clearance of dabigatran at steady state determined over the dosing interval τ)

    Time frame: from pre-dose up to 72 hours post-dose

  6. C min,ss (minimum measured concentration of dabigatran in plasma at steady state over a uniform dosing interval τ)

    Time frame: from pre-dose up to 72 hours post-dose

  7. tmin,ss (time from last dosing to the minimum concentration of dabigatran in plasma at steady state over a uniform dosing interval τ)

    Time frame: from pre-dose up to 72 hours post-dose

  8. Cpre,ss (pre-dose concentration of dabigatran in plasma at steady state immediately before administration of the next dose)

    Time frame: from pre-dose up to 72 hours post-dose

  9. MRTp.o.,ss (mean residence time of dabigatran in the body at steady state after oral administration)

    Time frame: from pre-dose up to 72 hours post-dose

  10. Vz/Fss (apparent volume of distribution during the terminal phase λz at steady state following an extravascular administration)

    Time frame: from pre-dose up to 72 hours post-dose

  11. Aeτ,ss (amount of dabigatran that is eliminated in urine at steady state over a uniform dosing interval τ)

    Time frame: 0 to 12 h and 12 to 24 h after administration on day 4

  12. feτ,ss (fraction of parent drug eliminated in urine at steady state over a uniform dosing interval τ)

    Time frame: 0 to 12 h and 12 to 24 h after administration on day 4

  13. AUC0-tz (area under the concentration-time curve of diclofenac and 4´- hydroxydiclofenac in plasma over the time interval 0 to the last quantifiable analyte plasma concentration after single dose administration)

    Time frame: from pre-dose up to 72 hours post-dose

  14. tz (time of last measurable concentration of diclofenac and 4´- hydroxydiclofenac in plasma following a single dose)

    Time frame: from pre-dose up to 72 hours post-dose

  15. %AUCtz-infinity (percentage of the AUC0-infinity that is obtained by extrapolation) for diclofenac and 4´- hydroxydiclofenac

    Time frame: from pre-dose up to 72 hours post-dose

  16. tmax (time from dosing to the maximum concentration of diclofenac and 4´- hydroxydiclofenac in plasma following a single dose)

    Time frame: from pre-dose up to 72 hours post-dose

  17. λz (terminal rate constant in plasma after a single dose) for diclofenac and 4´- hydroxydiclofenac

    Time frame: from pre-dose up to 72 hours post-dose

  18. t1/2 (terminal half-life of diclofenac and 4´- hydroxydiclofenac in plasma after a single dose)

    Time frame: from pre-dose up to 72 hours post-dose

  19. MRTp.o. (mean residence time of diclofenac and 4´- hydroxydiclofenac in the body after single dose oral administration)

    Time frame: from pre-dose up to 72 hours post-dose

  20. CL/F (apparent clearance of diclofenac and 4´- hydroxydiclofenac in the plasma after extravascular single dose administration)

    Time frame: from pre-dose up to 72 hours post-dose

  21. Vz/F (apparent volume of distribution during the terminal phase λz following extravascular dose) for diclofenac and 4´- hydroxydiclofenac

    Time frame: from pre-dose up to 72 hours post-dose

Sponsors and collaborators

Lead sponsor

Boehringer Ingelheim

Industry

Registry information

Official study title

Relative Bioavailability of Dabigatran and Diclofenac After 150 mg b.i.d. Dabigatran Etexilate and Diclofenac at 50 mg Single Dose Alone or Following Concomitant Multiple Oral Administrations in Healthy Male and Female Volunteers (an Open Label, Randomised, Multiple- Dose, Three-way Crossover Study)

Important dates

Study start
2006
Primary completion
2006
First posted
Jun 24, 2014
Registry last updated
Jun 24, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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