Clinical trial Recruiting at 2 sites Observational

Ultrasound check for intramuscular bleeding after needle EMG in people taking DOACs

Official title: Ultrasound Evaluation of Hematoma Risk After Needle EMG in Patient on DOAC Therapy

Run by Masaryk University · NCT07166302 · Data updated 2026-11-12

Ultrasound will be used about 30 minutes after a needle EMG to see if people taking direct oral anticoagulants (DOACs) develop intramuscular hematomas.

More Neuromuscular Diseases (NMD) trials

Quick facts

Study typeObservational
SexAll
Enrollment70 (estimated)
SponsorMasaryk University
Academic / other
Locations2 sites (Brno, Czech Republic and 1 other locations)
StatusRecruiting
StartedSeptember 2025
Main results expectedJune 30, 2026
Study endsDecember 31, 2026
Registry record updatedSeptember 10, 2025
Trial IDNCT07166302 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults who take a direct oral anticoagulant at standard daily dosing, can give informed consent, are willing to comply with study procedures, and are not taking any other antithrombotic drugs are ideal candidates.

Probably not a fit

People taking additional antiplatelet or anticoagulant medications, or those with other bleeding disorders or conditions that increase bleeding risk, may not benefit from the study’s findings.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an observational protocol enrolling people who are taking DOACs and who undergo needle electromyography (EMG). About 30 minutes after the EMG, an ultrasound exam of the muscles where needles were inserted will be performed to look for possible intramuscular hematomas. Subjects on any additional antithrombotic medications are excluded to isolate the effect of DOAC therapy. The goal is to determine whether routine needle EMG poses a bleeding risk in this patient group without altering their anticoagulant regimen.

Why it matters

Potential benefit: If results show a low risk of hematoma, clinicians and patients may be reassured that needle EMG can be performed safely without stopping DOACs, reducing interruptions in anticoagulation care.

How similar studies have gone: Published data on hematoma risk after needle EMG in patients on DOACs is limited to small series and case reports, so this approach remains relatively novel and not yet well established.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subjects must understand the nature of the study and must provide signed and dated written informed consent prior to conducting any study-related procedures
* Willing and able to comply with all protocol procedures
* subjects confirmed the daily (and recent) intake od direct anticoagulants in strandard dosing.
* no other antitrombotic drug therapy (e.g. acetylsalicyl acid, clopidogrel, ticagralol, low molecular weight heparin or second direct anticoagulant) is taken.

Exclusion Criteria:

* Any clinically significant medical or psychiatric condition or medical history that, in the opinion of the investigator, would interfere with the subject's ability to participate in the study or increase the risk of participation for that subject
* other antitrombotic drug therapy (e.g. acetylsalicyl acid, clopidogrel, ticagralol, low molecular weight heparin or second direct anticoagulant) is recently taken.

Where it's running

  • University Hospital Brno
    Brno, Czech Republic, Czechia
    Recruiting
  • University hospital Brno
    Brno, Czech Republic, Czechia
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.