CClinicalTrials.gg
CompletedNCT05150938Updated Dec 18, 2023

A Study to Gather Information About Rivaroxaban in Patients in Sweden With Cancer Who Also Have Thrombosis (OSCAR-SE)

An observational study in Treatment of Venous Thromboembolism in Cancer Patients, sponsored by Bayer. Completed at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-12-18.

Sponsored by Bayer · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
5,737
Ages
18 Years and older
Sex
All
01

Study summary

This is an observational study in which patient data from the past on venous thromboembolism (VTE) in patients with cancer is studied.

VTE is a condition in which a patient has problems due to the formation of blood clots in the veins. Blood clots can reduce the flow of blood to vital organs such as the heart and lungs, which can lead to them becoming damaged. VTE can also be "recurrent". This means that the blood clots have returned after treatment. People who have cancer have an increased risk of developing VTE.

Three main types of anticoagulation treatments ("blood thinners") have been available for patients with cancer who also have VTE

  • Low molecular weight heparins (LMWHs)
  • Vitamin K antagonists (VKAs)
  • Non-vitamin K antagonist oral anticoagulants (NOACs) The treatment rivaroxaban belongs to the NOACs.

Compared to other treatments available to patients who have cancer and VTE, NOACs may cause fewer medical problems and can be easier for patients to take correctly.

In this study, the researchers will collect data about:

  • the type of VTE treatments given and for how long the treatments are taken
  • the risk of blood clots returning in the veins after treatment, any events of major bleeding, and the number of deaths in patients with cancer who do not have a high risk of bleeding

The researchers will compare this information in the patients

  • who received rivaroxaban to the patients who received LMWHs
  • who received NOACs to the patients who received LMWHs.

There will be no required visits with a study doctor or required tests in this study. The researchers will look at the health information from adult patients in Sweden who were diagnosed with cancer between 2013 and 2019 and also have VTE. The researchers will collect this information from Swedish health registers including the Cancer Registry, National Patient Registry, Prescribed Drug Registry, and Cause of Death Registry.

02

Conditions studied

  • Treatment of Venous Thromboembolism in Cancer Patients
03

In context

Thrombosis

1,506 studies on the registry are indexed under Thrombosis; 238 are open to participants now.

This study's enrollment of 5,737 is above the median of 213 across 586 observational studies indexed under Thrombosis.

Browse Thrombosis studies →

Lead sponsor

Bayer is the lead sponsor of 1,643 studies on the registry; 57 are open to participants now.

Of its 209 completed or terminated interventional studies of FDA-regulated products, 129 (62%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All patients diagnosed with cancer in Sweden from year 2013 to 2019.

Inclusion criteria

  • A resident in Sweden of 18+ years of age
  • A Swedish Person Identification Number
  • A diagnosis of cancer ((ICD10 = C00-C97) in the Swedish Cancer registry during 2013-2019 and a diagnosis of VTE subsequent to the cancer diagnosis.

Exclusion criteria

Exclusion Criteria:

  • A diagnosis of atrial fibrillation, total hip or knee replacement or acute coronary syndrome (for evaluation of treatment patterns) before the date of VTE diagnosis
  • A dispensed prescription for any oral anticoagulant (OAC) before the date of VTE diagnosis
  • A cancer diagnosis associated with high bleeding risk, including upper gastrointestinal cancer, malignant immunoproliferative diseases and leukemia
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
5,737 participants (actual)
Patient registry
No

Groups and cohorts

  • Cancer patients with VTE

    Cancer patients who received anticoagulation treatment.

    Drug: Rivaroxaban (Xarelto, BAY59-7939) · Drug: Low molecular weight heparin (LMWH) · Drug: vitamin K antagonist (VKA) · Drug: other NOACs

Interventions

  • DrugRivaroxaban (Xarelto, BAY59-7939)

    Retrospective cohort analysis using Swedish registries including the Cancer Registry, National Patient Registry, Prescribed Drug Registry, and Cause of Death Registry.

  • DrugLow molecular weight heparin (LMWH)

    Retrospective cohort analysis using Swedish registries including the Cancer Registry, National Patient Registry, Prescribed Drug Registry, and Cause of Death Registry.

  • Drugvitamin K antagonist (VKA)

    Retrospective cohort analysis using Swedish registries including the Cancer Registry, National Patient Registry, Prescribed Drug Registry, and Cause of Death Registry.

  • Drugother NOACs

    Retrospective cohort analysis using Swedish registries including the Cancer Registry, National Patient Registry, Prescribed Drug Registry, and Cause of Death Registry.

06

What researchers measure

Primary outcomes

  1. Recurrence of VTE

    Time frame: Retrospective data analysis from 2013 to 2020

  2. Major bleedings

    Time frame: Retrospective data analysis from 2013 to 2020

  3. All-cause death

    Time frame: Retrospective data analysis from 2013 to 2020

  4. Choice of anticoagulation treatments for VTE

    Time frame: Retrospective data analysis from 2013 to 2020

  5. Duration of anticoagulation treatments for VTE

    Time frame: Retrospective data analysis from 2013 to 2020

  6. Recurrence of VTE with different treatment types of LMWH, VKA and NOAC

    Time frame: Retrospective data analysis from 2013 to 2020

  7. Major bleedings with different treatment types of LMWH, VKA and NOAC

    Time frame: Retrospective data analysis from 2013 to 2020

  8. All-cause death with different treatment types of LMWH, VKA and NOAC

    Time frame: Retrospective data analysis from 2013 to 2020

07

Study locations

1 site
  • Swedish registries
    Multiple Locations, Many Locations, Sweden
08

References and documents

Individual participant data

Plan to share: No — Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 18, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05150938
Lead sponsor
Bayer
Collaborators
Janssen Research & Development, LLC
Responsible party
Sponsor
First posted
Dec 9, 2021
Start date
Mar 18, 2022
Primary completion
Feb 28, 2023
Completion
Feb 28, 2023
Last update
Dec 18, 2023

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2023. You cannot join it, but the record below documents what was studied.

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