Clinical trial Recruiting at 1 site Observational Ages 18 and up

Assessing blood flow changes in patients with suspected deep vein obstruction using a non-invasive method

Official title: Non-invasive Venous Air Plethysmography Assessment of Venous Hemodynamics in Patients Suspected Deep Venous Obstruction Used in Conjunction With Intermittent Pneumatic Compression.

Run by Mayo Clinic · NCT06519435 · Data updated 2026-11-12

This study is testing a new non-invasive device to see if it can help understand blood flow changes in patients who might have deep vein thrombosis (DVT).

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment500 (estimated)
SponsorMayo Clinic
Academic / other
Locations1 site (Rochester, Minnesota)
StatusRecruiting
StartedNovember 15, 2024
Main results expectedDecember 2026
Study endsApril 2027
Registry record updatedOctober 28, 2025
Trial IDNCT06519435 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are patients who have had a venous ultrasound indicating potential DVT within the last 72 hours.

Probably not a fit

Patients with conditions that prevent access to the target limb or those unable to provide informed consent may not benefit from this study.

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

What this trial studies

This observational study aims to evaluate venous blood flow changes in patients suspected of having deep vein thrombosis (DVT) using a non-invasive air-filled bladder under an intermittent pneumatic compression device. The study will involve patients who have undergone a venous ultrasound within the last 72 hours to assess for DVT. The devices used in this study are investigational and not yet cleared by the FDA, focusing on improving diagnostic methods for DVT. The goal is to enhance understanding of venous hemodynamics in patients at risk for DVT.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic techniques for detecting deep vein thrombosis, potentially reducing complications associated with the condition.

How similar studies have gone: While this approach is investigational, similar non-invasive methods have shown promise in other studies, suggesting potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Venous ultrasound study to evaluate for lower extremity DVT unilateral and/or bilateral within previous 72 hours.

Exclusion Criteria:

* Patients with inaccessible target limb (ultrasound limb) due to bandages (wound, burn, lesion, etc) or cast.
* Patients with leg trauma, fracture, above or below knee amputation, or other condition in which compressing on the calf is medically inappropriate or not possible.
* Patients unable to provide informed written consent.

Where it's running

  • Mayo Clinic
    Rochester, Minnesota, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.