~169 spots leftby Apr 2026

Thrombolysis vs FlowTriever System for Pulmonary Embolism

(PEERLESS Trial)

Recruiting in Palo Alto (17 mi)
+66 other locations
WJ
CG
SS
Overseen byStefan Stortecky, MD
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Academic
Waitlist Available
Sponsor: Inari Medical
No Placebo Group

Trial Summary

What is the purpose of this trial?

This trial is testing a device called the FlowTriever System, which removes lung blood clots without using drugs. It is for patients with acute pulmonary embolism who can't use clot-dissolving medications. The FlowTriever System allows for the nonsurgical removal of clots.

Research Team

WJ

Wissam Jaber, MD

Principal Investigator

Emory University

CG

Carin Gonsalves, MD

Principal Investigator

Thomas Jefferson University

SS

Stefan Stortecky, MD

Principal Investigator

Bern University Hospital

Eligibility Criteria

The PEERLESS Study is for adults over 18 with a recent pulmonary embolism (PE) diagnosis, showing specific heart or lung issues but are hemodynamically stable. They should be able to start treatment within 72 hours of diagnosis and have symptoms that started within the past two weeks. Exclusions include sensitivity to contrast agents, certain heart conditions, life expectancy under 30 days, participation in other trials, inability to use anticoagulants like heparin, or chronic thromboembolic diseases.

Inclusion Criteria

I show signs of a severe pulmonary embolism.
I am 18 years old or older.
My treatment is set to start within 72 hours after my PE diagnosis or hospital transfer.
See 5 more

Exclusion Criteria

You have been diagnosed with heparin-induced thrombocytopenia (HIT).
The doctor thinks you may not live for more than 30 days.
The doctor thinks that it's not suitable to use a catheter for treatment based on the imaging or other evidence.
See 12 more

Treatment Details

Interventions

  • Catheter-Directed Thrombolysis (Thrombolytic Agent)
  • FlowTriever System (Mechanical Thrombectomy Device)
Trial OverviewThis study compares the FlowTriever System against Catheter-Directed Thrombolysis (CDT) for treating acute PE. It's a forward-looking trial conducted across multiple centers where participants are randomly assigned to either intervention. There's also a group who can't receive thrombolysis due to contraindications; they'll only get the FlowTriever treatment.
Participant Groups
3Treatment groups
Experimental Treatment
Active Control
Group I: Non-Randomized Absolute Contraindication to Thrombolytics CohortExperimental Treatment1 Intervention
Mechanical thrombectomy for pulmonary embolism using the FlowTriever System.
Group II: Randomized Controlled Trial Cohort - FlowTriever ArmActive Control1 Intervention
Mechanical thrombectomy for pulmonary embolism using the FlowTriever System.
Group III: Randomized Controlled Trial Cohort - Catheter-Directed Thrombolysis ArmActive Control1 Intervention
Catheter-Directed Thrombolysis for pulmonary embolism (any commercially available CDT system)

Find a Clinic Near You

Who Is Running the Clinical Trial?

Inari Medical

Lead Sponsor

Trials
18
Recruited
5,300+