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HealthyPhase 1NCT02264041

Effect of Cytochrome P 450 3A4 Inhibition by Itraconazole on the Single Oral Dose Pharmacokinetics of Cilobradine

A Phase 1 study testing Cilobradine, low dose, Cilobradine, high dose and Itraconazole 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

Study to investigate the effect of cytochrome P 450 3A4 inhibition by itraconazole on the single dose pharmacokinetics of cilobradine Read more about this study

Who is it for?
Ages 21 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Cilobradine, low dose, Cilobradine, high dose and Itraconazole
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
No sites listed yet
Study dates
Jan 2004to Apr 2004
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 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy males 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
  • 1.1 No finding deviating from normal and of clinical relevance
  • 1.2 No evidence of a clinically relevant concomitant disease
  • Age ≥21 and Age ≤55 years
  • BMI ≥18.5 and BMI < 30 kg/m2 (Body Mass Index)
  • Resting pulse rate (PR; after 10 min. in the supine position) of more than 55 bpm
  • Signed and dated written informed consent prior to admission to the study in accordance with Good Clinical Practice and the local legislation

Who cannot join

  • Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological, ophthalmological, or hormonal disorders
  • 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 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
Show all 15Show fewer
  • 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
  • Smoker (more than 10 cigarettes or 3 cigars or 3 pipes/day)
  • Inability to refrain from smoking on trial days
  • 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

About this study

Official title: The Effect of Cytochrome P 450 3A4 Inhibition by Itraconazole on the Single Oral Dose Pharmacokinetics of Cilobradine (an Open-label, Randomised, Single-dose, Two-way Crossover Study)

Study to investigate the effect of cytochrome P 450 3A4 inhibition by itraconazole on the single dose pharmacokinetics of cilobradine

Conditions
Healthy
Being tested
Cilobradine, low dose, Cilobradine, high dose, Itraconazole

What participants receive

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

  • Cilobradine, low doseDrug

  • Cilobradine, high doseDrug

  • ItraconazoleDrug

    Also called Sempera®

Study groups in NCT02264041
Study groupRoleWhat they receive
Cilobradine, low dose plus itraconazoleExperimentalPre-study
Receives: Drug: Cilobradine, low dose; Drug: Itraconazole
Cilobradine, low doseActive comparatorPre-study
Receives: Drug: Cilobradine, low dose
Cilobradine, high dose plus itraconazoleExperimentalmain study
Receives: Drug: Cilobradine, high dose; Drug: Itraconazole
Cilobradine, high doseActive comparatormain study
Receives: Drug: Cilobradine, high dose

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 (AUC0-∞)

    Measured: up to 56 hours after administration of Cilobradine

  2. Maximum measured concentration of the analyte in plasma (Cmax)

    Measured: up to 56 hours after administration of Cilobradine

Secondary outcomes (15)
  1. 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 (AUC0-tz)

    Measured: up to 56 hours after administration of Cilobradine

  2. Time from dosing to Cmax (Tmax)

    Measured: up to 56 hours after administration of Cilobradine

  3. Terminal rate constant in plasma (λz)

    Measured: up to 56 hours after administration of Cilobradine

  4. Terminal half-life of the analyte in plasma (t1/2)

    Measured: up to 56 hours after administration of Cilobradine

  5. Mean residence time of the analyte in the body after p.o. administration (MRTpo)

    Measured: up to 56 hours after administration of Cilobradine

  6. Apparent clearance of the analyte in the plasma after extravascular administration (CL/F)

    Measured: up to 56 hours after administration of Cilobradine

  7. Apparent volume of distribution during the terminal phase λz following an extravascular dose (Vz/F)

    Measured: up to 56 hours after administration of Cilobradine

  8. Amount of parent compound excreted in urine with zero to 72 h in % of dose (fe0-tz)

    Measured: up to 72 hours after administration of Cilobradine

  9. Renal clearance of cilobradine (CLR,0-tz)

    Measured: up to 72 hours after administration of Cilobradine

  10. Number of subjects with adverse events

    Measured: up to 46 days

  11. Occurrence of visual phenomena

    questionnaire

    Measured: up to 46 days

  12. Number of subjects with clinically relevant findings in vital signs

    blood pressure, pulse rate

    Measured: up to 32 days

  13. Number of subjects with clinically relevant findings in laboratory tests

    Measured: up to 32 days

  14. Number of subjects with clinically relevant findings in 12-lead electrocardiogram

    Measured: up to 32 days

  15. Assessment of tolerability by investigator on a 4-point scale

    Measured: within 8 days after last PK sampling

Timeline

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

  1. First posted15 Oct 2014 (estimated)
  2. Study startJan 2004
  3. Primary completionApr 2004

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
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02264041
Sponsor's protocol ID
503.213
Status last verified
Oct 2014
First submitted
13 Oct 2014
Last updated
15 Oct 2014
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Cilobradine, low dose, Cilobradine, high dose and Itraconazole 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 8 inclusion and 15 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 15 Oct 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 (AUC0-∞) (time frame: up to 56 hours after administration of Cilobradine). 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 15 Oct 2014.

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