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Subcostal Temporary Extravascular Pacing V Study

Subcostal Temporary Extravascular Pacing V (STEP V) Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05633394
Acronym
STEP V
Enrollment
29
Registered
2022-12-01
Start date
2023-01-23
Completion date
2025-06-30
Last updated
2025-08-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Conduction Defect

Keywords

Temporary Ventricular Pacing, Extravascular

Brief summary

The STEP V Study is a prospective, multicenter, acute (in-hospital), single-arm feasibility study. The objective of the study is to evaluate the early safety and performance of the latest AtaCor EV Temporary Pacing Lead System over a two-day use period.

Detailed description

The primary safety objective is freedom from Adverse Device Effects (ADE). The primary performance objective is summary statistics for pacing capture threshold, impedance, and sensed R-wave amplitude with the StealthTrac Lead from insertion through removal. Up to three (3) Investigational Sites will participate with up to 50 subjects enrolled in the study. Subjects indicated for closed-chest cardiac invasive procedures will be eligible for participation. Subjects undergoing a qualifying index procedure will have a Model AC-101400 StealthTrac Lead inserted and evaluated over the follow-up period. Subject participation is expected to be 2 days with the Study Lead inserted, plus 30 days post lead removal. A 30 day (+/-3 days) post-removal follow-up will also be performed to document any latent adverse events. Subjects remain enrolled until completion of the 30-Day Follow Up. The maximum duration for study participation is 33 days. Study duration estimated to be 3 years after the first study enrollment.

Interventions

Subjects will receive the AtaCor StealthTrac Lead being evaluated in the study.

Sponsors

AtaCor Medical, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. At least 18 years old 2. Subjects indicated for closed-chest cardiac invasive procedure, including: * Transarterial transcatheter aortic valve implantation (TAVI) * Transarterial balloon aortic valvuloplasty (BAV) * Cardiovascular implantable electronic device (CIED) pulse generator replacement * Cardiovascular implantable electronic device (CIED) lead extraction or revision

Exclusion criteria

1. BMI ≥ 35 kg/m2 2. Septic shock 3. Severe anemia 4. Patients on dual antiplatelet therapy or anti-coagulation that cannot be stopped for the procedure 5. Circumstances that prevent data collection or follow-up (e.g., inability to perform a short walk with the Holter monitor) 6. Participation in any concurrent clinical study without prior written approval from the Sponsor 7. Inability or unwillingness to provide informed consent to participate in the Study Known prior history for any of the following: 8. Median or partial sternotomy 9. Acute coronary syndrome within past 90 days 10. NYHA Functional Classification IV within past 90 days 11. Surgically corrected congenital heart disease (not including catheter-based procedures) 12. Allergies to the device materials such as stainless steel, titanium, platinum, iridium, polyethylene, polyurethane, polycarbonate and silicone 13. Surgery with disruption of the lung, pericardium or connective tissue between the sternum and pericardium, including adhesions 14. Significant anatomic derangement of or within the thorax (e.g., pectus excavatum, significant scoliosis) 15. Thoracic radiation therapy, pneumothorax, pneumomediastinum or other medical treatments which may complicate the AtaCor EV Temporary Pacing Lead System insertion procedure 16. Any conditions which may complicate the AtaCor EV Temporary Pacing Lead System insertion procedure 17. Pericardial disease, pericarditis and mediastinitis 18. Medical treatments, surgeries or conditions that increase the potential for pericardial adhesions 19. FEV1 \< 1 liter

Design outcomes

Primary

MeasureTime frameDescription
Pacing Capture Threshold (mA or V)Up to 2 days post-insertionSummary statistics for pacing capture threshold with the StealthTrac Lead from insertion through removal
Impedance (Ohms)Up to 2 days post-insertionSummary statistics for impedance with the StealthTrac Lead from insertion through removal
Freedom from ADEsUp to 2 days post-insertionFreedom from Adverse Device Effects (ADE)
Sensed R-Wave Amplitude (mV)Up to 2 days post-insertionSummary statistics for sensed R-wave amplitude with the StealthTrac Lead from insertion through removal

Countries

Paraguay

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026