ASCEND CSP IDE Study

NCT ID: NCT06830746

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

414 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-11

Study Completion Date

2028-05-31

Brief Summary

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This is a prospective, multi-center, global, single-arm, pivotal investigational study designed to evaluate the safety and effectiveness of the CSP ICD Lead in a subject population indicated for ICD or CRT-D therapy.

The clinical investigation will enroll up to 414 subjects at up to 70 participating centers from the United States, Canada, Europe, and Asia Pacific.

Detailed Description

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Conditions

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Heart Failure Ventricular Arrythmia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Treatment

Subjects undergoing ICD/CRT implant will be implanted with the CSP ICD Lead in the LBBAP location and undergo required electrical testing

Group Type EXPERIMENTAL

LBBAP Implant with a CSP ICD Lead

Intervention Type DEVICE

Required electrical testing for pacing, sensing, impedance and defibrillation will be completed

Interventions

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LBBAP Implant with a CSP ICD Lead

Required electrical testing for pacing, sensing, impedance and defibrillation will be completed

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Subject must meet current clinical practice guidelines for implantation of ICD or CRT-D and will undergo one of the following:

1. de novo Abbott ICD system implant (single or dual chamber)
2. de novo Abbott CRT-D system implant and is intended to also undergo left ventricle coronary sinus lead implant (for patients indicated for CRT-D according to locally approved indications)
2. Subject is ≥ 18 years of age or age of legal consent, whichever age is greater.
3. Subject is willing to undergo implant defibrillation testing if requested. Subjects with AF in whom defibrillation testing is required must have been on or willing to be on uninterrupted anticoagulation therapy before, during, and after the implant procedure.
4. Subject is willing to comply with clinical investigation procedures and agrees to return to clinic for all required follow-up visits, tests, and exams.
5. Subject has been informed of the nature of the clinical investigation, agrees to its provisions and has provided a signed written informed consent, approved by the IRB/EC.

Exclusion Criteria

1. Subject has had myocardial infarction or unstable angina within 40 days prior to signing consent
2. Subject has had recent cardiac revascularization (angioplasty, stent or bypass graft) in the 4 weeks prior to signing consent or planned within 3 months following consent
3. Subject has had any other therapeutic cardiovascular procedure (such as transcatheter aortic valve replacement, MitraClip, cardiac surgery, left atrial appendage closure, patent foramen ovale closure, or any ablation procedures) in the 3 months prior to signing consent or planned within 3 months following consent
4. Subject has had a recent Cerebrovascular Accident (CVA) or Transient Ischemic Attack (TIA) within 3 months of prior to signing consent
5. Subject has a life expectancy of less than 12 months
6. Subject has contraindications for standard RV transvenous and/or LBBAP lead placement (e.g., mechanical right heart valve)
7. Subject is contraindicated for ≤1mg Dexamethasone sodium phosphate.
8. Subject is pregnant or breastfeeding women, or women of childbearing potential and who are not on a reliable form of birth regulation method or abstinence
9. Subject has an existing pacemaker (including a temporary pacing system), ICD, CRT, or cardiac contractility modulation (CCM) device or leads
10. Subject has any evidence of active infection or undergoing treatment for an infection
11. Subject is enrolled or planning to enroll in another clinical trial that might confound the results of the present study
12. Subject has moderate or severe aortic stenosis
13. Subject has ventricular septal defect (VSD) or had prior surgery on the interventricular septum that could impact LBBAP implant, such as septal myomectomy, ethanol septal ablation, VSD repair, etc
14. Subject has end-stage renal disease
15. Subject has NYHA IV classification
16. Subject has undergone cardiac transplantation or have a classification of Status 1 for cardiac transplantation or consideration for transplantation during the study follow-up period
17. Subject has had previously extracted leads
18. Subject has had an LV Assist Device
19. Subject has had a failed LBBAP lead implant


1. Subject has pre-existing or suspected pneumothorax during implant
2. Subject has current known intracardiac left atrial or Left Ventricular thrombus
3. Subject has severe proximal three-vessel or left main coronary artery disease without revascularization
4. Subject has Ejection Fraction less than 20%
5. Subject has recent stroke or transient ischemic attack (within the last 6 months)
6. Subject has known inadequate external defibrillation
7. Subject has any other known medical condition not listed that precludes their participation in the opinion of the investigator
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Abbott Medical Devices

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Heart Center Research LLC

Huntsville, Alabama, United States

Site Status RECRUITING

Banner University Medical Center Phoenix

Phoenix, Arizona, United States

Site Status RECRUITING

Arrhythmia Research Group

Jonesboro, Arkansas, United States

Site Status RECRUITING

Premier Cardiology, Inc.

Newport Beach, California, United States

Site Status RECRUITING

University of California at San Diego (UCSD) Medical Center

San Diego, California, United States

Site Status RECRUITING

MedStar Washington Hospital Center

Washington D.C., District of Columbia, United States

Site Status RECRUITING

AdventHealth Orlando

Orlando, Florida, United States

Site Status RECRUITING

Beth Israel Deaconess Medical Center

Boston, Massachusetts, United States

Site Status RECRUITING

New York Presbyterian Hospital/Cornell University

New York, New York, United States

Site Status RECRUITING

The Cleveland Clinic Foundation

Cleveland, Ohio, United States

Site Status RECRUITING

Geisinger Medical Center

Danville, Pennsylvania, United States

Site Status RECRUITING

Lancaster General Hospital

Lancaster, Pennsylvania, United States

Site Status RECRUITING

Hospital of the University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

Erlanger Medical Center

Chattanooga, Tennessee, United States

Site Status RECRUITING

Sentara Norfolk General Hospital

Norfolk, Virginia, United States

Site Status RECRUITING

The Prince Charles Hospital

Chermside, Queensland, Australia

Site Status RECRUITING

Princess Alexandra Hospital

Woolloongabba, Queensland, Australia

Site Status RECRUITING

Royal Adelaide Hospital

Adelaide, South Australia, Australia

Site Status RECRUITING

Monash Health

Clayton, Victoria, Australia

Site Status RECRUITING

MUHC- Montreal General Hospital

Montreal, , Canada

Site Status RECRUITING

CHRU Hopital de Pontchaillou

Rennes, Brittan, France

Site Status RECRUITING

CHU Trousseau

Chambray-lès-Tours, Centre-Val de Loire, France

Site Status RECRUITING

Hôpital Pitié Salpetrière

Paris, Ile, France

Site Status RECRUITING

Prince of Wales Hospital

Hong Kong, , Hong Kong

Site Status RECRUITING

Queen Mary Hospital

Hong Kong, , Hong Kong

Site Status RECRUITING

Max Super Specialty Hospital

New Delhi, National Capital Territory of Delhi, India

Site Status RECRUITING

Sree Chitra Tirunal Institute for Medical Sciences & tech.

Trivandrum, New Delhi, India

Site Status RECRUITING

Velammal Medical College Hospital

Madurai, Tmlnadu, India

Site Status RECRUITING

Ospedale S.S. Annunziata

Taranto, Apulia, Italy

Site Status RECRUITING

Ospedale Niguarda Ca'Granda

Milan, Lombard, Italy

Site Status RECRUITING

National Heart Centre Singapore

Singapore, Singapore, Singapore

Site Status RECRUITING

Changi General Hospital

Singapore, , Singapore

Site Status RECRUITING

Tan Tock Seng Hospital

Singapore, , Singapore

Site Status RECRUITING

Hospital Universitari i Politècnic La Fe

Valencia, Valencia, Spain

Site Status RECRUITING

Hospital Universitario Virgen de las Nieves

Granada, , Spain

Site Status RECRUITING

Hopital Cantonal Universitaire de Geneva

Geneva, Canton of Geneva, Switzerland

Site Status RECRUITING

Countries

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United States Australia Canada France Hong Kong India Italy Singapore Spain Switzerland

Facility Contacts

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Michael Kaufmann, MD

Role: primary

256-519-8472

Roderick Tung, MD

Role: primary

(602) 839-2000

Devi Nair, MD

Role: primary

917-774-8369

Rajesh Banker, MD

Role: primary

949-478-7373

Ulrika Birgersdotter-Green, MD

Role: primary

858-657-7000

Athanasios Thomaides, MD

Role: primary

(202) 877-7000

Usman Siddiqui, MD

Role: primary

(407) 303-5600

Peter Zimetbaum, MD

Role: primary

617-667-7000

Jim Cheung, MD

Role: primary

212-746-2158

Niraj Varma, MD

Role: primary

(216) 444-2200

Pugazhendhi Vijayaraman, MD

Role: primary

(570) 271-6211

Matthew Bernabei, MD

Role: primary

(717) 544-5511

Robert Schaller, MD

Role: primary

215-349-8027

Alvaro M Garcia, MD

Role: primary

423-778-8409

Divyang Patel, MD

Role: primary

(757) 388-3000

Haris Haqqani, MD

Role: primary

+61731396800

Paul Gould, MD

Role: primary

+1 61 731762381

Prashanthan Sanders, MD

Role: primary

61883139000

Emily Kotschet, MD

Role: primary

61395944595

Jacqueline Joza, MD

Role: primary

514 934-8488

Christophe Leclercq, Prof

Role: primary

332-9928-3754

Bertrand Pierre, MD

Role: primary

332-4747-9054

Xavier Waintraub, MD

Role: primary

0033183798898

Tsz Kin Tam, MD

Role: primary

852 35053137

Hung Fat Tse, MD

Role: primary

Balbir Singh, MD

Role: primary

91-9811102598

Narayanan Namboodiri

Role: primary

91 471 244 3152

Shunmuga Sundaram, MD

Role: primary

91-9444712846

Cosimo Mandurino, MD

Role: primary

39 099 458 5111

Patrizio Mazzone, MD

Role: primary

39 02 64441

Chi Keong Ching, Prof

Role: primary

65-6704-8964

Vern Hsen Tan, MD

Role: primary

David Foo, MD

Role: primary

625666011

Oscar Cano Perez, MD

Role: primary

+34 652565982

Manuel Jose Molina Lerma, MD

Role: primary

958-022-421

Haran Burri, MD

Role: primary

41 22 372 33 11

Other Identifiers

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ABT-CIP-10549

Identifier Type: -

Identifier Source: org_study_id

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