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Pulmonary Embolism AcuteNCT06672510

Safety and Effectiveness of the Akura Thrombectomy System for Use in the Removal of Emboli From the Pulmonary Arteries in Treating Acute Pulmonary Embolism (PE)

A study testing ATC in people with Pulmonary Embolism Acute, run by Akura Medical at 7 sites in United States.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

This study is a prospective, single-arm, interventional, multicenter study to evaluate the safety and effectiveness of percutaneous mechanical thrombectomy using the Akura Thrombectomy System in subjects with acute pulmonary embolism (PE). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Pulmonary Embolism Acute
What is being tested?
ATC
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
118 participants
Where
7 sitesUnited States
Study dates
27 Jan 2025to Sep 2028
Phase
Interventional
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

Who may be able to join

  • The patient is 18 years of age or older and deemed medically eligible for interventional procedure, per institutional guidelines and clinical judgement
  • Clinical signs, symptoms and presentation consistent with acute PE
  • PE symptom duration ≤ 14 days
  • CTA evidence of proximal PE (filling defect in at least one main or lobar pulmonary artery)
  • CTA evidence of RV/LV ratio of ≥ 0.9 (NOTE: Enrollment qualification assessment is based on the Investigator's interpretation of RV/LV ratio at baseline)
  • Systolic BP ≥ 90 mmHg (initial SBP may be < 90 mmHg but ≥ 80 mmHg if the pressure recovers with volume resuscitation)
  • Stable HR < 130 BPM prior to the procedure

Who cannot join

  • Prior PE <180 days from index procedure
  • Thrombolytic use within 30 days prior to baseline CTA
  • Pulmonary hypertension with peak pulmonary arterial pressure (PAP) > 70 mmHg by right heart catheterization
  • Vasopressor requirement after fluids to keep pressure at ≥ 90 mmHg
  • FiO2 requirement > 40% or > 6 LPM (to keep oxygen saturation > 90%)
  • Hematocrit < 28% (Note: hematocrit required within 6 hrs. of index procedure)
Show all 28Show fewer
  • Platelets < 100,000/μL
  • eGFR <30 ml/min per 1.73 m2
  • International normalized ratio (INR) > 3
  • Major trauma injury severity score (ISS) > 15
  • Presence of intracardiac lead in right ventricle or atrium placed ≤ 6 months of enrollment
  • Cardiovascular or pulmonary surgery within the last 7 days
  • Actively progressing cancer treated by chemotherapeutics
  • Known bleeding diathesis or coagulation disorder
  • Left bundle branch block
  • History of severe or chronic pulmonary arterial hypertension
  • History of chronic left heart disease with left ventricular ejection fraction ≤ 30%
  • History of uncompensated heart failure.
  • History of underlying lung disease that is oxygen dependent
  • History of chest irradiation
  • History of heparin-induced thrombocytopenia (HIT)
  • Contraindication to systemic or therapeutic doses of anticoagulants
  • Known anaphylactic reaction to radiographic contrast agents that cannot be pretreated
  • Known residual iliac deep vein thrombosis (DVT), inferior vena cava (IVC) clot or clot in transit (right atrium and/or right ventricle)
  • CTA imaging or other evidence that suggest, in the opinion of the investigator, the Subject is not appropriate for mechanical thrombectomy intervention (e.g. inability to navigate to target location, predominantly chronic clot or non-clot embolus)
  • Life expectancy < 90 days, as determined by investigator (e.g., stage 4 cancer, frailty or severe COVID infections)
  • Female who is pregnant or nursing
  • Current participation in another investigational drug or device treatment study

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

United States7 sites
  • Manatee Memorial Hospital / Nova Clinical Research Center

    Bradenton, Florida, 32408

  • Hartford Healthcare

    Hartford, Connecticut, 06102

  • Tristar Centennial Medical Center

    Nashville, Tennessee, 37203

  • Cumc/Nyph

    New York, New York, 10032

  • Tallahassee Memorial Hospital

    Tallahassee, Florida, 32308

  • Los Robles Regional Medical Center

    Thousand Oaks, California, 91360

  • ProMedica Toledo Hospital

    Toledo, Ohio, 43606

Other trials in United States

About this study

This study is a prospective, single-arm, interventional, multicenter study to evaluate the safety and effectiveness of percutaneous mechanical thrombectomy using the Akura Thrombectomy System in subjects with acute pulmonary embolism (PE).

Being tested
ATC

What participants receive

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

  • ATCDevice

    The ATC System is designed to mechanically remove emboli and restore blood flow through the pulmonary arteries in patients experiencing acute PE

Study groups in NCT06672510
Study groupRoleWhat they receive
Patients with Acute Pulmonary EmbolismExperimentalPatients undergoing mechanical thrombectomy for acute pulmonary embolism.
Receives: Device: ATC

What is being measured

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

  1. Effectiveness

    Change in RV/LV ratio from baseline

    Measured: 48 hours

  2. Safety: Composite of Major Adverse Device-Related Events

    Device-related major bleeding at access, device-related death, clinical deterioration, pulmonary vascular injury or cardiac injury

    Measured: 48 hours post index procedure

Secondary outcomes (1)
  1. Safety: Composite of Major Adverse Events

    Assessment of major adverse events through 30 day follow-up

    Measured: 30 days post index procedure

Timeline

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

  1. First posted4 Nov 2024
  2. Study start27 Jan 2025
  3. Primary completionSep 2028 (estimated)
  4. Study completionSep 2028 (estimated)

Why it stopped: Enrollment with the 12F device configuration is closed. Enrollment is temporarily halted pending regulatory authorization of a protocol amendment introducing a modified device configuration, after which enrollment is expected to resume.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
118 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06672510
Sponsor's protocol ID
CP-60006
Status last verified
Aug 2026
First submitted
1 Nov 2024
Last updated
31 Aug 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing ATC in people with Pulmonary Embolism Acute, run by Akura Medical at 7 sites in United States.

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 7 inclusion and 28 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: paused, as of the sponsor's last update on 31 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United States. 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?

Results are not available in the source record.

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?

Effectiveness (time frame: 48 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 31 Aug 2026.

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