Pharmacokinetics of Dipyridamole Administered as Aggrenox® (Dipyridamole Extended Release Plus Aspirin) Capsule Versus Dipyridamole Immediate Release Plus Aspirin Following Alteration of Stomach pH

September 25, 2014 updated by: Boehringer Ingelheim

Comparison of Pharmacokinetics of Dipyridamole Administered as Aggrenox® (Dipyridamole Extended Release Plus Aspirin) Capsule Versus Dipyridamole Immediate Release Plus Aspirin Following Alteration of Stomach pH by the Prior Administration of a Proton-pump Inhibitor: An Open-label 2-way Randomized Cross-over Study in Healthy Male and Female Subjects Age 40-65.

Comparison of pharmacokinetics of dipyridamole administered as Aggrenox versus dipyridamole administered as the immediate release formulation plus aspirin, under conditions of reduced stomach acidity.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
31

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

40 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy subjects as determined by results of screening
  • Signed written informed consent in accordance with Good Clinical Practice (GCP) and local legislation
  • Age 40 - 65 years, inclusive, at time of Visit 1
  • Stomach pH > 4.0 on three consecutive measurements separated by at least five minutes, measured at Visits 3B and 5B prior to dosing with Aggrenox or dipyridamole-aspirin (DP-ASA)

Exclusion Criteria:

  • Any findings of the medical examination (including blood pressure, pulse rate and ECG) deviating from normal and considered by the investigator to be of clinical relevance
  • Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders considered by the investigator to be of clinical relevance
  • History of gastro-intestinal ulcer, perforation or bleeding
  • Surgery of the gastro-intestinal tract (except appendectomy)
  • Diseases of the central nervous system (such as epilepsy), neurological disorders, or psychiatric disorders
  • Chronic or relevant acute infections. Screening tests will be performed for HIV, hepatitis B, and hepatitis C
  • History of hypersensitivity to Aggrenox or any of the components or excipients
  • Intake of drugs with a long dominant half-life (>24 hours) 1 month or less prior to Visit 1
  • Use of any drugs which might influence the results of the trial ten days or less prior to Visit 1
  • Participation in another trial with an investigational drug 1 month or less prior to Visit 1
  • Known alcohol abuse
  • Known drug abuse (a drug screening test will be performed at Visits 1, 3, and 5)
  • Blood donation 1 month or less prior to Visit 1
  • Excessive physical activities five days or less prior to Visit 1
  • History of hemorrhagic diathesis
  • History of bronchial asthma
  • Any laboratory value outside the reference range, considered by the investigator to be of clinical relevance

For female subjects:

  • Nursing
  • Pregnancy
  • Positive pregnancy test
  • No adequate contraception (adequate contraception includes sterilization, intrauterine device, or oral contraceptives)
  • Inability to maintain adequate contraception during the whole study period

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Aggrenox
extended release
Drug: Lansoprazole
Drug: Aggrenox
Active Comparator: dipyridamole+aspirin
immediate release
Drug: Lansoprazole
Drug: Aspirin
Drug: Dipyridamole

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
area under the concentration time curve (AUC0-12)
Time Frame: up to 12 hours
up to 12 hours

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
area under the concentration time curve 0-48 hours (AUC0-48)
Time Frame: up to 48 hours
up to 48 hours
area under the concentration time curve extrapolated to infinity (AUC0-inf)
Time Frame: up to 3 days
up to 3 days
maximum observed plasma concentration (Cmax)
Time Frame: up to 3 days
up to 3 days
time to maximum observed plasma concentration (Tmax)
Time Frame: up to 3 days
up to 3 days
terminal half life (t1/2)
Time Frame: up to 3 days
up to 3 days
number of subjects with adverse events
Time Frame: up to 3 weeks
up to 3 weeks
number of subjects with clinically significant changes in laboratory findings
Time Frame: up to 17 days
up to 17 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Boehringer Ingelheim

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2000

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2000

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 25, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 25, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 29, 2014

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 29, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 25, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2014

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 9.146

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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