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HealthyPhase 1NCT01129375

Interaction Study of Clopidogrel 300/75 mg Given Alone or Concomitantly With Omeprazole 80 mg in Healthy Subjects

A Phase 1 study testing clopidogrel and omeprazole in people with Healthy, run by Sanofi 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

Primary objective: Assess the effects of clopidogrel (300 mg loading dose followed by 4 days 75 mg/day) on Adenosine diphosphate (ADP)-induced platelet aggregation when given concomitantly with omeprazole 80 mg/day compared to given alone in healthy male and female subjects Secondary Objective: Compare the… Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
clopidogrel and omeprazole
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
72 participants
Where
1 siteUnited States
Study dates
Feb 2009to May 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 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

None listed.

Who cannot join

  • Evidence of inherited disorder of coagulation/hemostasis functions
  • Smoking more than 5 cigarettes or equivalent per day
  • Abnormal hemostasis screen
  • unability to abstain from intake of any drug affecting hemostasis throughout the whole study duration
  • Any contraindication to clopidogrel and/or omeprazole
  • The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Sanofi-Aventis Administrative Office

    Bridgewater, New Jersey, 08807

Other trials in United States

About this study

Official title: A Randomized, Placebo-controlled, Two-period, Two-treatment, Two Sequence, Cross-over Pharmacodynamic and Pharmacokinetic Interaction Study After 5-days Repeated Oral Doses of Clopidogrel (300 mg Loading Dose Followed by 75 mg/Day) Alone or Given Concomitantly With Omeprazole 80 mg/Day in Healthy Male and Female Subjects

Primary objective:

  • Assess the effects of clopidogrel (300 mg loading dose followed by 4 days 75 mg/day) on Adenosine diphosphate (ADP)-induced platelet aggregation when given concomitantly with omeprazole 80 mg/day compared to given alone in healthy male and female subjects

Secondary Objective:

  • Compare the pharmacokinetic profiles of clopidogrel and its active metabolite when clopidogrel is given either alone or concomitantly with omeprazole
Read the detailed description

The total study duration per subjects is 8 - 9 weeks broken down as follows:

  • Screening: 2 to 21 days before the first dosing
  • Period clopidogrel/placebo: 7 days including 5 days treatment
  • Period clopidogrel/placebo + omeprazole: 12 days including 10 days treatment
  • Washout between periods: at least 14 days after last dosing with respect to clopidogrel treatment
  • End of study: 7 to 10 days after the last dosing
Conditions
Healthy
Being tested
clopidogrel, placebo, omeprazole

What participants receive

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

  • clopidogrelDrug

    Also called SR25990

    Pharmaceutical form: tablet

    Route of administration: oral

  • placeboDrug

    Pharmaceutical form: matching tablet

    Route of administration: oral

  • omeprazoleDrug

    Pharmaceutical form: delayed-release capsule

    Route of administration:oral

Study groups in NCT01129375
Study groupRoleWhat they receive
Group clopidogrel - clopidogrel + omeprazoleExperimentalPeriod 1: * Day 1: clopidogrel 300 mg loading dose * Day 2 to Day 5: clopidogrel 75 mg, once daily Period 2: * Day -5 to Day -1: omeprazole 80 mg, once daily * Day 1: clopidogrel 300 mg loading dose + omeprazole 80 mg concomitantly * Day 2 to Day 5: clopidogrel 75 mg + omeprazole 80 mg concomitantly, once daily Each intake is under fasted conditions
Receives: Drug: clopidogrel; Drug: omeprazole
Group placebo - placebo + omeprazolePlacebo comparatorPeriod 1: * Day 1: placebo loading dose * Day 2 to Day 5: placebo, once daily Period 2: * Day -5 to Day -1: omeprazole 80 mg, once daily * Day 1: placebo loading dose + omeprazole 80 mg concomitantly * Day 2 to Day 5: placebo + omeprazole 80 mg concomitantly, once daily Each intake is under fasted conditions
Receives: Drug: placebo; Drug: omeprazole
Group clopidogrel + omeprazole - clopidogrelExperimentalPeriod 1: * Day -5 to Day -1: omeprazole 80 mg, once daily * Day 1: clopidogrel 300 mg loading dose + omeprazole 80 mg concomitantly * Day 2 to Day 5: clopidogrel 75 mg + omeprazole 80 mg concomitantly, once daily Period 2: * Day 1: clopidogrel 300 mg loading dose * Day 2 to Day 5: clopidogrel 75 mg, once daily Each intake is under fasted conditions
Receives: Drug: clopidogrel; Drug: omeprazole
Group placebo + omeprazole placeboPlacebo comparatorPeriod 1: * Day -5 to Day -1: omeprazole 80 mg, once daily * Day 1: placebo loading dose + omeprazole 80 mg concomitantly * Day 2 to Day 5: placebo + omeprazole 80 mg concomitantly, once daily Period 2: * Day 1: placebo loading dose * Day 2 to Day 5: placebo, once daily Each intake is under fasted conditions
Receives: Drug: placebo; Drug: omeprazole

What is being measured

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

  1. Maximum platelet aggregation intensity (MAI) induced by Adenosine diphosphate (ADP) 5µM after 5 days treatment

    Measured: Day 5 of each period

Secondary outcomes (4)
  1. Maximum platelet aggregation intensity (MAI) induced by ADP 20µM after 5 days treatment

    Measured: Day 5 of each period

  2. Platelet Reactivity Index - Vasodilatator-stimulated phosphoprotein test (PRI - VASP) after 5 days treatment

    Measured: Day 5 of each period

  3. Clopidogrel pharmacokinetic parameters (maximum plasma concentration (Cmax) and area under the plasma concentration curve (AUC0-24)) after 5 days treatment

    Measured: Up to 24 hours postdose on Day 5 for each period

  4. Clopidogrel active metabolite pharmacokinetic parameters (Cmax and AUC0- 24) after 5 days treatment

    Measured: Up to 24 hours postdose on Day 5 for each period

Timeline

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

  1. First posted24 May 2010 (estimated)
  2. Study startFeb 2009
  3. Primary completionMay 2009
  4. Study completionMay 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
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
72 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01129375
Sponsor's protocol ID
INT11146
Status last verified
Dec 2011
First submitted
21 May 2010
Last updated
15 Dec 2011
Results posted
No
Data monitoring committee
No

Publications

  • Angiolillo DJ, Gibson CM, Cheng S, Ollier C, Nicolas O, Bergougnan L, Perrin L, LaCreta FP, Hurbin F, Dubar M. Differential effects of omeprazole and pantoprazole on the pharmacodynamics and pharmacokinetics of clopidogrel in healthy subjects: randomized, placebo-controlled, crossover comparison studies. Clin Pharmacol Ther. 2011 Jan;89(1):65-74. doi: 10.1038/clpt.2010.219. Epub 2010 Sep 15.

    PubMed 20844485

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing clopidogrel and omeprazole in people with Healthy, run by Sanofi 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 0 inclusion and 6 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 Dec 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 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. Some participants in this study may receive a placebo. 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?

Maximum platelet aggregation intensity (MAI) induced by Adenosine diphosphate (ADP) 5µM after 5 days treatment (time frame: Day 5 of each period). 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 NCT01129375, 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 15 Dec 2011.

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Clinical Trial NCT01129375 | AzTrials