ClinicalTrials.gg
CompletedNCT03284762XaMINAUpdated Nov 24, 2020

Xarelto on Prevention of Stroke and Noncentral Nervous System Systemic Embolism in Treatment-naïve Asian Patients With Non-valvular Atrial Fibrillation

An observational study in Atrial Fibrillation, sponsored by Bayer. Completed at 2 sites in 2 countries. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2020-11-24.

Sponsored by Bayer · Observational

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Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
1,216
Ages
19 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 64 studies in Atrial Fibrillation by Bayer — 1 open to participants now, 1 under way, none of them phase 3. Atrial Fibrillation · Bayer.

Enrollment
31st of 51
1,216 · median 3,055
Started
2017
with 5 others
Observational
51 of 64
none open now
Registered
43rd of 64
by date

Among the 64 studies in Atrial Fibrillation by Bayer, this one is the 31st largest by enrollment of the 51 observational ones that give a count, is one of 6 that started in 2017, is one of 51 observational ones, and was the 43rd registered.

Atrial Fibrillation

4,009 studies on the registry are indexed under Atrial Fibrillation; 960 are open to participants now.

Browse Atrial Fibrillation studies →

Open to participants now

1 of the 64 studies in Atrial Fibrillation by Bayer is open now, in 8 countries. Recruiting first, the newest first:

By country, each count listing its studies:

Who these studies take

Of the 611 Atrial Fibrillation studies recruiting now, 407 (67%) set no upper age limit and 43 (7%) stop at 75 or younger; 21 take children under 18; 43 take healthy volunteers.

This study: 19 Years and older · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 64 studies in Atrial Fibrillation by Bayer, or all of them as a file.
02

Study summary

The purpose of the study is to collect additional information of Xarelto treatment in routine clinical practice. Patients affected by atrial fibrillation and who will get Xarelto as a prophylactic treatment against stroke and systemic embolism (Stroke Prevention in Atrial Fibrillation) will be observed.

Read the detailed description

The study takes place in Korea and Taiwan. Approximately a total of 1200 patients will be included in the study within 12 months. The observation period for each patient is 1 year from enrollment into the study, or until withdrawal of consent or lost to follow-up. Patients will be followed according to routine medical practice and the frequency of visits and procedures will be performed under routine conditions.

03

Conditions studied

  • Atrial Fibrillation

Browse trials for

04

Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients from Taiwan and Korea visiting doctors in hospitals or medical practices for treatment of atrial fibrillation

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female and male patients aged 19 years or older (Korea) and aged 20 years or older (Taiwan)
  • Diagnosis of NVAF
  • Patients for whom the decision to initiate treatment with rivaroxaban is made as per physician's routine treatment practice
  • Treatment naïve regarding stroke prevention for atrial fibrillation
  • Signed

Exclusion criteria

Exclusion Criteria:

  • for rivaroxaban according to the local market authorization/summary of product characteristics (SmPC)
  • Patients participating in an program with interventions outside of routine clinical practice
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
1,216 participants (actual)
Patient registry
No

Groups and cohorts

  • Treatment-naïve NVAF patients in Korea and Taiwan

    Patients will be followed according to routine medical practice and the frequency of visits and procedures will be performed under routine conditions. NVAF: Non-valvular atrial fibrillation

    Drug: Rivaroxaban (Xarelto, BAY59-7939)

Interventions

  • Rivaroxaban is a direct Factor Xa inhibitor. In this non-interventional setting, the prescription and dosing scheme is up to the treatment physician, however, the recommended dosing scheme is 20mg/day (once daily) or 15 mg/day (once daily) in patients with reduced renal function

06

What researchers measure

Primary outcomes

  1. Major bleeding events, collected as Serious Adverse Events (SAEs) or non-serious Adverse Events (AEs)

    Major bleeding events, collected as SAEs or non-serious AEs and defined as overt bleeding associated with: * A fall in hemoglobin of ≥2 g/dL, or * A transfusion of ≥2 units of packed red blood cells or whole blood, or * Occurrence at a critical site (intracranial, intra-spinal, intraocular, pericardial, intra articular, intra-muscular with compartment syndrome, retroperitoneal), or * Death.

    Time frame: Up to one year

Secondary outcomes

  1. AEs

    All events which do not fall under characterization of major bleeding events as explained in section "primary outcome variables"

    Time frame: Up to one year

  2. SAEs

    All events which do not fall under characterization of major bleeding events as explained in section "primary outcome variables"

    Time frame: Up to one year

  3. All-cause mortality

    All events which do not fall under characterization of major bleeding events as explained in section "primary outcome variables"

    Time frame: Up to one year

  4. Non-major bleeding events

    All events which do not fall under characterization of major bleeding events as explained in section "primary outcome variables"

    Time frame: Up to one year

  5. Symptomatic thromboembolic events

    All events which do not fall under characterization of major bleeding events as explained in section "primary outcome variables"

    Time frame: Up to one year

  6. Start of rivaroxaban therapy and, if applicable, stop of rivaroxaban therapy

    Start date and stop date will be collected to receive information on drug persistence

    Time frame: Up to one year

07

Study locations

2 sites
  • Different facilities
    Multiple Locations, Korea, Republic of
  • Different facilities
    Multiple Locations, Taiwan
08

References and documents

Publications

  • Liu PY, Choi EK, Kim TS, Kuo JY, Lee JM, On YK, Park SW, Park HW, Shin DG, Wang L, Yen HW, Lee MH; XaMINA Investigators. XaMINA: A Real-World, Prospective, Observational Study of Treatment-Naive Patients Treated with Rivaroxaban for Stroke Prevention in Atrial Fibrillation in Asia. Adv Ther. 2022 Jul;39(7):3316-3333. doi: 10.1007/s12325-022-02102-8. Epub 2022 May 26. PubMed 35616848 ↗

Individual participant data

Plan to share: Undecided — Availability of this study's data will be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, time point and process of data access. As such, Bayer commits to sharing upon request from qualified researcher's 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.clinicalstudydatarequest.com 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 Study sponsors section of the portal.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2017 to primary completion in Aug 2019, 22 months.

Of 148 industry-sponsored observational studies under Atrial Fibrillation, half reached primary completion within 26 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 42. This study's 22 months is below that.

Counting every sponsor, half of 698 studies reached it within 38 months; a quarter within 22 and three quarters within 76.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 14, 2017
First posted
Sep 15, 2017
StartActual
Sep 11, 2017
Primary completionActual
Aug 9, 2019
CompletionActual
Nov 20, 2019
Last update
Nov 24, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 24, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03284762
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Sep 15, 2017
Start date
Sep 11, 2017
Primary completion
Aug 9, 2019
Completion
Nov 20, 2019
Last update
Nov 24, 2020

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 Nov 2020. You cannot join it, but the record below documents what was studied.

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Discussion

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