New catheter device shows promise for treating dangerous lung clots
NCT ID NCT06571760
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested a new device called the Vertex Pulmonary Embolectomy System in 10 people with pulmonary embolism (blood clots in the lungs). The device is threaded through a blood vessel to remove clots and relieve strain on the right side of the heart. Researchers measured changes in heart chamber size and tracked any serious side effects within 48 hours.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Vertex Pulmonary Embolectomy System (a catheter device to remove blood clots from lung arteries)
- What this could lead to
- If successful, this device could offer a new way to quickly reduce heart strain in people with severe pulmonary embolism, potentially preventing long-term heart damage.
- What could go wrong
- This was a very small, early study with only 10 participants and no comparison group, so results may not apply to everyone. Risks include bleeding, vessel injury, or device-related complications.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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10 people
The number who actually took part.
- Started
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Sep 2024
- Finished
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May 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 79 years
- Sex
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Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age ≥ 18 years \< 80 years 2. Acute onset of symptoms ≤ 14 days consistent with the presence of pulmonary embolism. 3. CTA evidence (site determined) of proximal PE (filling defect in at least one main or interlobar pulmonary artery) 4. RV/LV ratio of \> 0.9 on CTA as assessed by investigator (site determined). 5. Systolic blood pressure ≥ 90 mmHg (initial SBP may be ≥ 80 mmHg if the pressure recovers to ≥ 90 mmHg with fluids) 6. Subject is willing and able to provide written informed consent prior to receiving any non-standard of care clinical investigation plan specific procedures 7. Subject is willing and able to comply with all clinical investigation plan required follow-up visits Exclusion Criteria: 1. Thrombolytic use within 30 days of baseline CTA 2. Pulmonary hypertension with peak pulmonary artery pressure \> 70 mmHg by right heart catheterization (site determined) 3. Vasopressor requirement after fluids to keep pressure ≥ 90 mmHg 4. Unstable heart rate \> 130 beats per minute prior to procedure 5. FiO2 requirement \> 40% or \> 6 LPM to keep oxygen saturation \> 90% 6. Hematocrit \< 28% 7. Platelets \< 100,000/µL 8. Serum baseline creatinine \> 1.8 mg/dL 9. International normalized ratio (INR) \> 3 10. Major trauma injury severity score (ISS) \> 15 within the past 14 days 11. Presence of intracardiac lead in the right ventricle or right atrium placed \<180 days prior to the index procedure 12. Cardiovascular or pulmonary surgery within last 30 days 13. Actively progressing cancer requiring chemotherapy 14. Known bleeding diathesis or coagulation disorder 15. Left bundle branch block 16. History of severe or chronic pulmonary arterial hypertension 17. History of chronic left heart disease with left ventricular ejection fraction ≤ 30% 18. History of decompensated heart failure 19. Patients on extracorporeal membrane oxygenation (ECMO) 20. History of underlying lung disease that is oxygen dependent 21. History of chest irradiation 22. History of heparin-induced thrombocytopenia (HIT) 23. Contraindication to systemic or therapeutic doses of heparin or anticoagulants 24. Known anaphylactic reaction to radiographic contrast agents that cannot be pretreated 25. Imaging evidence or other evidence that suggests, in the opinion of the Investigator, the Subject is not appropriate for mechanical thrombectomy intervention 26. Life expectancy of \< 365 days, as determined by Investigator 27. Female who is pregnant or nursing 28. Current participation in another investigational drug or device treatment study 29. Inability to lay flat for procedure 30. Known presence of right-to-left cardiac shunt 31. History of Hemorrhagic or Ischemic Stroke, including Transient Ischemic Attack, within last 90 days 32. Current or history of chronic thromboembolic pulmonary hypertension (CTEPH) or chronic thromboembolic disease (CTED) diagnosis
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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AKH Vienna - Medical university of Vienna
Vienna, 1090, Austria
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Jagiellonian University
Krakow, Poland
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Other studies related to the condition(s) this trial covers.
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