Traumatic Intracranial Hemorrhage in Users of Oral Antithrombotic Drugs

NCT02996851 | Completed

• 1 other identifier: 2014/958
• Study Type: observational
• Target: 6,279
• Locations: 0 countries
• Sites: N/A

Brief 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. 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.

Conditions

Intracranial Hemorrhage, Traumatic; Embolism and Thrombosis; Hematoma, Subdural, Intracranial

Keywords

Fibrinolytic Agents; Adverse effects; Norway; Registries

Outcome Measures

Primary Outcomes (1)

• incidence of intracranial hemorrhage requiring hospital admission

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

  at least 12 months following intracranial hemorrhage

Secondary Outcomes (2)

• incidence of fatal traumatic intercranial hemorrhage defined as death within 90 days of admission

  90 days

• overall survival following traumatic intracranial hemorrhage

  6 years

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

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).

You may qualify if:

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

Sponsors & Collaborators

• St. Olavs Hospital: lead
• Norwegian University of Science and Technology: collaborator

MeSH Terms

Conditions

Intracranial Hemorrhage, Traumatic; Embolism and Thrombosis; Hematoma, Subdural, Intracranial

Condition Hierarchy (Ancestors)

Intracranial Hemorrhages; Cerebrovascular Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Craniocerebral Trauma; Trauma, Nervous System; Vascular Diseases; Cardiovascular Diseases; Wounds and Injuries; Hematoma, Subdural; Hematoma; Hemorrhage; Pathologic Processes; Pathological Conditions, Signs and Symptoms

Study Officials

• Sasha Gulati, md phd

  Norwegian University of Science and Technology

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: ECOLOGIC OR COMMUNITY
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: December 15, 2016
• First Posted: December 19, 2016
• Study Start: January 1, 2007
• Primary Completion: December 31, 2014
• Study Completion: December 31, 2014
• Last Updated: October 17, 2017

Record last verified: 2017-10

Data Sharing

• IPD Sharing: Will not share