Inclusion Criteria:

1. Willing and able to provide informed consent;
2. PE symptom duration ≤ 15 days;
3. Filling defect in at least one major lobar pulmonary artery as determined by CTA;
4. Patient is diagnosed with intermediate risk PE;
5. RV/LV diameter ratio ≥ 0.9 by CTA, as determined by investigative site;
6. Willing and able to comply with all study procedures and 7-day and 30-day telephone follow-up visit.

Exclusion Criteria:

1. Previous history of stroke with residual hemiplegia;
2. Major surgery ≤ 10 days prior to inclusion in the study;
3. Platelet count \< 100,000/μL;
4. Pulmonary thrombectomy within the previous 4 days;
5. Uncontrolled hypertension defined as systolic blood pressure \>180 mm Hg and/or diastolic blood pressure \>110 mm Hg at the time of the procedure;
6. Administration of thrombolytic agents within the previous 4 days;
7. Absolute contraindication to anticoagulation;
8. Clinician deems high-risk for catastrophic bleeding;
9. Pregnancy;
10. Any vasopressor or inotropic support;
11. Cardiac arrest (including pulseless electrical activity (PEA) and asystole) requiring active cardiopulmonary resuscitation (CPR) during this hospitalization at treating institution and/or referring institution;
12. Planning to administer r-tPA by infusion after the r-tPA is administered by pulse sprays;
13. Currently participating in another study;
14. In the opinion of the investigator, the subject is not a suitable candidate for the study.

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 02/17/2026. Questions regarding updates should be directed to the study team contact.