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Treatment of Venous Thromboembolism in Cancer PatientsNCT05150938

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

An observational study of Treatment of Venous Thromboembolism in Cancer Patients, run by Bayer at 1 site in Sweden.

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

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. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Rivaroxaban (Xarelto, BAY59-7939), Low molecular weight heparin (LMWH) and vitamin K antagonist (VKA)
How many people
5,737 participants
Where
1 siteSweden
Study dates
18 Mar 2022to 28 Feb 2023
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: All patients diagnosed with cancer in Sweden from year 2013 to 2019.

Who may be able to join

  • 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.

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

Sweden1 site
  • Swedish registries

    Multiple Locations, Many Locations

Other trials in Sweden

About this study

Official title: Observational Studies in Cancer Associated Thrombosis for Rivaroxaban in SwEden (OSCAR-SE)

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.

Read more

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.

Being tested
Rivaroxaban (Xarelto, BAY59-7939), Low molecular weight heparin (LMWH), vitamin K antagonist (VKA), other NOACs

What participants receive

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

  • Rivaroxaban (Xarelto, BAY59-7939)Drug

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

  • Low molecular weight heparin (LMWH)Drug

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

  • vitamin K antagonist (VKA)Drug

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

  • other NOACsDrug

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

Study groups in NCT05150938
Study groupRoleWhat they receive
Cancer patients with VTECancer patients who received anticoagulation treatment.
Receives: Drug: Rivaroxaban (Xarelto, BAY59-7939); Drug: Low molecular weight heparin (LMWH); Drug: vitamin K antagonist (VKA); Drug: other NOACs

What is being measured

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

  1. Recurrence of VTE

    Measured: Retrospective data analysis from 2013 to 2020

  2. Major bleedings

    Measured: Retrospective data analysis from 2013 to 2020

  3. All-cause death

    Measured: Retrospective data analysis from 2013 to 2020

  4. Choice of anticoagulation treatments for VTE

    Measured: Retrospective data analysis from 2013 to 2020

  5. Duration of anticoagulation treatments for VTE

    Measured: Retrospective data analysis from 2013 to 2020

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

    Measured: Retrospective data analysis from 2013 to 2020

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

    Measured: Retrospective data analysis from 2013 to 2020

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

    Measured: Retrospective data analysis from 2013 to 2020

Timeline

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

  1. First posted9 Dec 2021
  2. Study start18 Mar 2022
  3. Primary completion28 Feb 2023
  4. Study completion28 Feb 2023

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
Cohort
Time perspective
Retrospective
Enrolment
5,737 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05150938
Sponsor's protocol ID
21616
Status last verified
Dec 2023
First submitted
18 Nov 2021
Last updated
18 Dec 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
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.

Publications

  • Linder M, Ekbom A, Brobert G, Vogtlander K, Balabanova Y, Becattini C, Carrier M, Cohen AT, Coleman CI, Khorana AA, Lee AYY, Psaroudakis G, Abdelgawwad K, Rivera M, Schaefer B, Giunta DH. Comparison of rivaroxaban and low molecular weight heparin in the treatment of cancer-associated venous thromboembolism: a Swedish national population-based register study. J Thromb Thrombolysis. 2024 Aug;57(6):973-983. doi: 10.1007/s11239-024-02992-1. Epub 2024 May 12.

    PubMed 38735015

Questions about this trial

What is this clinical trial studying?

An observational study of Treatment of Venous Thromboembolism in Cancer Patients, run by Bayer at 1 site in Sweden.

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 3 inclusion and 3 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 18 Dec 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Recurrence of VTE (time frame: Retrospective data analysis from 2013 to 2020). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05150938, which also lists 1 linked publication.

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 18 Dec 2023.

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