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Intracranial Hemorrhage, TraumaticNCT02996851

Traumatic Intracranial Hemorrhage in Users of Oral Antithrombotic Drugs

An observational study of Intracranial Hemorrhage, Traumatic and Embolism and Thrombosis, run by St. Olavs Hospital.

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

Oral antithrombotic medications (OAM) are used for the prevention and treatment of thrombotic disorders. Among hemorrhagic complications of OAMs, intracranial hemorrhage (ICH) may have particularly devastating consequences with high morbidity, disability and mortality rates. Read more about this study

Who is it for?
Ages 18 years and older
How many people
6,279 participants
Where
No sites listed yet
Study dates
Jan 2007to 31 Dec 2014
Phase
Observational
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: (1) the Norwegian patient registry (NPR), which contains information about all admissions to Norwegian hospitals since 2008 with diagnoses coded according to the 10th revision of the International Classification of Diseases and (2) The Norwegian prescription database (NorPD), which contains information about all prescriptions dispensed in Norway since 2004 including type of drug according to the Anatomical Therapeutic Chemical (ATC) classification system, number of Defined Daily Doses (DDD) as defined by the World Health Organization, date of dispensing, quantity dispensed, and drug strength and formulation. The National Registry provides information to NPR and NorPD on vital status (dead or alive).

Who may be able to join

  • included in the Norwegian patient registry (NPR) and/or the Norwegian prescription database (NorPD)

Who cannot join

  • -

About this study

Official title: Traumatic Intracranial Hemorrhage in Users of Oral Antithrombotic Drugs: a Nationwide Pharmacoepidemiological Study

Oral antithrombotic medications (OAM) are used for the prevention and treatment of thrombotic disorders. Among hemorrhagic complications of OAMs, intracranial hemorrhage (ICH) may have particularly devastating consequences with high morbidity, disability and mortality rates. The efficacy and safety profiles of OAMs are generally assessed in randomized controlled trials (RCT), but included patients are often highly selected and may not be representative of users in everyday clinical practice in terms of follow-up routines, age, gender, drug compliance, and polypharmacy. Moreover, it is often unclear whether or not traumatic ICHs are registered and reported in RCTs. Drifts in indications and treatment criteria may also be seen in everyday practice and drug discontinuation due to precautionary concerns including compliance, fall risk and comorbidity may be forgotten. Collectively, these factors may lead to other and potentially higher traumatic ICH rates in general clinical use than reported in RCTs.

The incidence rates of traumatic ICH in patients on OAMs in the general population remain unknown. In this nationwide registry based pharmacoepidemiological study we will investigate the incidence and case fatality of traumatic ICH in users of OAMs in Norway from 2008 through 2014.

Keywords
Fibrinolytic Agents, Adverse effects, Norway, Registries
Medical subject headings
Intracranial Hemorrhage, Traumatic, Embolism and Thrombosis, Hematoma, Subdural, Intracranial

What is being measured

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

  1. incidence of intracranial hemorrhage requiring hospital admission

    Age- and gender-adjusted comparisons of annual incidence rates will be carried out

    Measured: at least 12 months following intracranial hemorrhage

Secondary outcomes (2)
  1. incidence of fatal traumatic intercranial hemorrhage defined as death within 90 days of admission

    Age- and gender-adjusted comparisons of annual incidence rates will be carried out.

    Measured: 90 days

  2. overall survival following traumatic intracranial hemorrhage

    Measured: 6 years

Timeline

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

  1. First posted19 Dec 2016 (estimated)
  2. Study startJan 2007
  3. Primary completion31 Dec 2014
  4. Study completion31 Dec 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Ecologic or community
Time perspective
Retrospective
Enrolment
6,279 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02996851
Sponsor's protocol ID
2014/958
Status last verified
Oct 2017
First submitted
15 Dec 2016
Last updated
17 Oct 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Intracranial Hemorrhage, Traumatic and Embolism and Thrombosis, run by St. Olavs Hospital.

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 1 inclusion and 1 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 17 Oct 2017. 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.

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?

incidence of intracranial hemorrhage requiring hospital admission (time frame: at least 12 months following intracranial hemorrhage). 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 17 Oct 2017.

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