BIO|STREAM.CSP CLS
Observation of Clinical Routine Care for Patients Implanted With BIOTRONIK Devices Used for Conduction System Pacing (CSP) With Focus on Closed Loop Stimulation (CLS)
This clinical study is a prospective, observational submodule of the BIO|STREAM.CSP registry designed to evaluate clinical outcomes in patients receiving BIOTRONIK dual-chamber pacemakers that combine conduction system pacing-specifically left bundle branch area pacing (LBBAP)-with Closed Loop Stimulation (CLS). The purpose of the study is to better understand how this combined pacing strategy performs in routine clinical practice and whether it may help reduce the occurrence of atrial fibrillation in patients with sinus node dysfunction (SND) and concomitant atrioventricular (AV) conduction disorders.
The primary question the study seeks to answer is what the incidence of device-detected atrial fibrillation (DDAF) is over a 24-month follow-up period in patients treated with LBBAP and active CLS. Additionally, the study explores how CLS dynamically modulates pacing rates when the ventricular lead is positioned within the conduction system, and whether this physiological pacing approach may mitigate the negative effects associated with conventional right ventricular pacing.
Overall, this study aims to generate real-world evidence to support optimization of pacemaker programming and to inform clinical decision-making regarding the use of CLS in combination with conduction system pacing, with the goal of improving patient outcomes and reducing atrial arrhythmia burden.
연구 개요
상세 설명
This study, BIO|STREAM.CSP CLS, is a prospective, observational submodule of the ongoing BIO|STREAM.CSP registry. It is designed to collect real-world clinical data from patients who receive BIOTRONIK dual-chamber pacemakers using conduction system pacing (CSP), with a specific focus on the combination of left bundle branch area pacing (LBBAP) and Closed Loop Stimulation (CLS).
Permanent cardiac pacing is a standard therapy for patients with sinus node dysfunction (SND), a condition in which the heart's natural pacemaker does not function properly. A considerable proportion of these patients also have atrioventricular (AV) conduction disorders, which impair the electrical connection between the atria and ventricles. In such cases, dual-chamber pacemakers are typically implanted to maintain appropriate heart rhythm and coordination.
Traditional right ventricular (RV) pacing, while effective in maintaining heart rate, has been associated with non-physiological activation of the heart and may contribute to an increased risk of atrial fibrillation (AF), especially when pacing burden is high. Device-detected atrial fibrillation (DDAF) is a clinically relevant outcome, as it is associated with increased risk of stroke, heart failure, and other cardiovascular complications.
Closed Loop Stimulation (CLS) is an advanced pacemaker feature designed to provide more physiological heart rate adaptation by continuously monitoring cardiac contractility and adjusting the pacing rate accordingly. In previous studies, including the B3 trial, CLS demonstrated a reduction in DDAF incidence in patients with SND. However, this benefit was not observed in patients with AV block, likely due to the adverse effects of frequent RV pacing.
Conduction system pacing, and in particular left bundle branch area pacing (LBBAP), is an emerging pacing strategy that stimulates the heart's intrinsic conduction pathways, resulting in a more physiological and synchronized ventricular activation. This approach has the potential to reduce the negative effects associated with RV pacing.
The BIO|STREAM.CSP CLS submodule aims to investigate whether the combination of LBBAP and CLS can reduce the incidence of DDAF in patients with both SND and AV conduction disorders in routine clinical practice. The study will follow approximately 150 patients over a 24-month period after pacemaker implantation. Patients included are those enrolled in the BIO|STREAM.CSP registry who receive a de novo dual-chamber pacemaker with activated CLS and LBBAP, and who have no prior history of atrial fibrillation.
The primary objective of this exploratory submodule is to assess the incidence and timing of DDAF episodes following activation of CLS, using device-based diagnostics over the follow-up period. The study will evaluate multiple thresholds of AF episode duration (e.g., ≥6 minutes, ≥6 hours, ≥24 hours, and ≥7 days), as well as the time to first occurrence and overall AF burden. Secondary analyses will explore how CLS modulates heart rate in patients with conduction system pacing, including the distribution of paced and sensed heart rates over time.
As an observational study without a control group, BIO|STREAM.CSP CLS is intended to generate hypothesis-generating, real-world evidence rather than to test a predefined hypothesis. The findings are expected to provide insights into the clinical performance of CLS in combination with LBBAP and to support optimization of device programming strategies.
Overall, this study seeks to improve understanding of how advanced pacing technologies can be used together to deliver more physiological cardiac pacing, with the goal of reducing atrial arrhythmias and improving long-term outcomes in patients requiring permanent pacemakers.
연구 유형
등록 (추정된)
연락처 및 위치
연구 연락처
- 이름: Martina Del Maestro
- 전화번호: +393426529214
- 이메일: CLS-CSP-STREAM@biotronik.com
연구 연락처 백업
- 이름: Paola Napoli
- 전화번호: +393357369277
- 이메일: CLS-CSP-STREAM@biotronik.com
연구 장소
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Madrid, 스페인
- 아직 모집하지 않음
- Hospital Universitario 12 de Octubre
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연락하다:
- Alvaro Marco del Castillo
- 이메일: amarco89@hotmail.com
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Valencia, 스페인
- 아직 모집하지 않음
- Hospital Universitario La Fe
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연락하다:
- Óscar Cano Pérez
- 이메일: cano_osc@gva.es
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Brindisi, 이탈리아
- 아직 모집하지 않음
- Ospedale Di Summa - Perrino
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연락하다:
- Ennio CL Pisanò
- 이메일: enniopisano@hotmail.com
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Milan, 이탈리아
- 아직 모집하지 않음
- Niguarda Hospital
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연락하다:
- Matteo Baroni
- 이메일: bimatteo@gmail.com
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Novara, 이탈리아
- 모병
- A.O.U. Maggiore della Carita di Novara
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연락하다:
- Gabriele Dell'Era
- 전화번호: +3903213731
- 이메일: gdellera@gmail.com
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Piove di Sacco, 이탈리아
- 아직 모집하지 않음
- Ospedale di Piove di Sacco
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연락하다:
- Leonardo Marinaccio
- 이메일: leonardo.marinaccio@aulss6.veneto.it
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Roma, 이탈리아
- 아직 모집하지 않음
- Fondazione Policlinico Universitario "Agostino Gemelli" Università Cattolica del Sacro Cuore
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연락하다:
- Maria Lucia Narducci
- 이메일: marialucia.narducci@policlinicogemelli.it
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Taranto, 이탈리아
- 아직 모집하지 않음
- SS Annunziata Taranto
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연락하다:
- Cosimo Mandurino
- 전화번호: +390994585111
- 이메일: mandurinocosimo@gmail.com
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Ústí nad Labem, 체코
- 아직 모집하지 않음
- Masarykova Nemocnice V Usti Nad Labem
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연락하다:
- Jíří Holý
- 이메일: jiri.holy@kzcr.eu
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Coimbra, 포르투갈
- 아직 모집하지 않음
- Unidade local de Saúde de Coimbra, EPE - Centro Hospitalar Universitario de Coimbra
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연락하다:
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연락하다:
- João Ferreira
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Budapest, 헝가리
- 아직 모집하지 않음
- Semmelweis University
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연락하다:
- László Gellér
- 이메일: geller.laszlo@kardio.sote.hu
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Szeged, 헝가리
- 아직 모집하지 않음
- University Of Szeged
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연락하다:
- Tamás Szili-Török
- 이메일: szili-torok.tamas@u-szeged.hu
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참여기준
자격 기준
공부할 수 있는 나이
- 성인
건강한 자원 봉사자를 받아들입니다
샘플링 방법
연구 인구
설명
Inclusion Criteria:
- Enrolled in the BIO|STREAM.CSP registry
- Standard indication for dual-chamber pacing due to any form of sinus node disease according to guidelines
- DDD-CLS pacing mode activated
- Either ≥ II degree AV block, or native PR interval ≥ 200 ms at baseline ECG with expected RVP ≥ 20%
Exclusion Criteria:
- Implantation dates back more than 90 days
- History of clinical AF
- Patients intended to receive, or already received a pacing lead for traditional RV pacing, His bundle pacing or right bundle branch pacing
- Upgrade from previous pacemaker system
- Patients transitioning from the BIO|MASTER.CSP study
- DDAF episodes present in the device memory at the time of registration
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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DDAF incidence
기간: From CLS activation to 24 months after implantation
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Time from CLS activation to the first device-detected atrial fibrillation (DDAF) episode of different duration cutoffs (6 minutes, 6 hours, 24 hours, 7 days) through 24 months of follow-up after implantation
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From CLS activation to 24 months after implantation
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DDAF burden
기간: From CLS activation to 24 months after implantation
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The time from CLS activation to the first day with a DDAF burden ≥1% (≈15 minutes) determined within a follow-up period of 24 months after implantation
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From CLS activation to 24 months after implantation
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Heart Rate histograms
기간: At 1 year and 2 years after implantation
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Heart Rate histograms of sensed and paced beats [% time] at 1-year and 2-year follow-ups
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At 1 year and 2 years after implantation
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- BA121
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