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HealthyPhase 1NCT02268773

Effects of Acetylsalicylic Acid Compared With the Combination of Acetylsalicylic Acid + Modified-release Dipyridamole on Serum Thromboxane B2 Formation and Platelet Aggregation in Healthy Volunteers

A Phase 1 study testing Asasantin®, Acetylsalicylic acid low dose and Acetylsalicylic acid high dose 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 compare the combination of acetylsalicylic acid (25 mg) + modified-release dipyridamole (200 mg) bd versus acetylsalicylic acid (75 mg dispersible tablet once daily) in its effect on inhibition of thromboxane B2 formation Read more about this study

Who is it for?
Ages 20 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Asasantin®, Acetylsalicylic acid low dose and Acetylsalicylic acid high dose
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
No sites listed yet
Study dates
Jan 2000to May 2000
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 20 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Male or female healthy volunteers aged 20 to 50 years
  • Clinically normal medical history
  • Clinically normal findings on physical examination
  • Capable of comprehending and communicating effectively with the investigator and staff and of providing informed consent
  • Willing to give informed consent prior to participation in the trial (i.e. prior to any trial-specific procedures)

Who cannot join

  • Any clinically significant disease. (A significant disease is defined as a disease which in the opinion of the investigator may either put the subject at risk because of participation in the study or a disease which may influence the results of the study or the subject's ability to participate in the study)
  • Clinically significant abnormal baseline haematology, blood chemistry or urinalysis findings
  • Serum glutamate-oxaloacetate transferase (SGOT) or serum glutamate-pyruvate transferase (SGPT) > 80 IU/L, bilirubin > 34 µmol/L or creatinine > 176 µmol/L regardless of clinical condition. Repeat laboratory evaluation will not be conducted in these subjects
  • Use of dipyridamole, aspirin or any non-steroidal anti-inflammatory agent (NSAID) during the previous two weeks
  • Active peptic ulceration or history of peptic ulcer disease
  • Known history of or suspected hypersensitivity to dipyridamole, aspirin, any NSAID or any other component of the test drugs
Show all 16Show fewer
  • History of any bleeding disorders
  • History of cerebral haemorrhage
  • Resting, seated blood pressure less than 90/60 mmHg
  • Participation in any drug clinical trial within sixteen weeks prior to the start of the trial
  • Any indication of current or previous abuse of alcohol, solvents or drugs
  • Any chronic illness
  • Asthma
  • Requirement for any other medication one month before or during the study
  • Pregnant or nursing women or women of childbearing potential not using a medically approved means of contraception (e.g. oral contraceptives, intrauterine devices or surgically sterile) were to be excluded
  • Previous participation in the randomisation phase of this clinical trial

About this study

Official title: A Randomised, Two-period, Cross-over Trial to Compare the Effects of Acetylsalicylic Acid (75 mg/Day) With the Combination of Acetylsalicylic Acid (25 mg) + Modified-release Dipyridamole (200 mg) (bd) on Serum Thromboxane B2 Formation and Platelet Aggregation in Healthy Volunteers

To compare the combination of acetylsalicylic acid (25 mg) + modified-release dipyridamole (200 mg) bd versus acetylsalicylic acid (75 mg dispersible tablet once daily) in its effect on inhibition of thromboxane B2 formation

Conditions
Healthy
Being tested
Asasantin®, Acetylsalicylic acid low dose, Acetylsalicylic acid high dose

What participants receive

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

  • Asasantin®Drug

    Also called modified-release dipyridamole

  • Acetylsalicylic acid low doseDrug

  • Acetylsalicylic acid high doseDrug

Study groups in NCT02268773
Study groupRoleWhat they receive
Acetylsalicylic acid low dose with Asasantin®ExperimentalNot described
Receives: Drug: Asasantin®; Drug: Acetylsalicylic acid low dose
Acetylsalicylic acid high doseActive comparatorNot described
Receives: Drug: Acetylsalicylic acid high dose

What is being measured

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

  1. Absolute serum thromboxane B2 level

    Measured: At day 3 after start of drug administration

Secondary outcomes (8)
  1. Change in platelet aggregation

    measured ex-vivo

    Measured: At day 3 after start of drug administration

  2. Change in time course of inhibition of serum thromboxane B2

    Measured: Pre-dose, up to day 14 after start of drug administration

  3. Change in time course of inhibition of platelet aggregation

    Measured: Pre-dose, up to day 14 after start of drug administration

  4. Changes from baseline in vital signs

    systolic and diastolic blood pressure, pulse rate

    Measured: Pre-dose, up to 14 days after first drug administration

  5. Changes from baseline in laboratory tests

    Measured: Pre-dose, up to 14 days after first drug administration

  6. Changes from baseline in physical examination

    Measured: Pre-dose, up to 14 days after first drug administration

  7. Changes from baseline in 12-lead ECG

    Measured: Pre-dose, up to 14 days after first drug administration

  8. Number of patients with adverse events

    Measured: Up to 14 days after start of 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 posted20 Oct 2014 (estimated)
  2. Study startJan 2000
  3. Primary completionMay 2000

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
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02268773
Sponsor's protocol ID
9.130
Status last verified
Oct 2014
First submitted
17 Oct 2014
Last updated
20 Oct 2014
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Asasantin®, Acetylsalicylic acid low dose and Acetylsalicylic acid high dose 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 16 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 20 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?

Absolute serum thromboxane B2 level (time frame: At day 3 after start of drug administration). 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 20 Oct 2014.

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