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Study identifier: NCT07608822 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

BIO|STREAM.CSP CLS

Condition: Sinus Node Disease · Atrioventricular Block  ·  Sponsor: Biotronik SE & Co. KG

PhaseN/A
Planned participants150
Who can joinAll sexes, 18 Years to 18 Years
Healthy volunteersNo

About this study

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.

This description comes directly from the study's public registry record.

Talk to the study team

Martina Del Maestro  ·  +393426529214  ·  CLS-CSP-STREAM@biotronik.com

Paola Napoli  ·  +393357369277  ·  CLS-CSP-STREAM@biotronik.com

Always discuss trial participation with your own doctor first.

Locations (12)

Masarykova nemocnice v Usti nad LabemÚstí nad Labem, CzechiaNot Yet Recruiting
Semmelweis UniversityBudapest, HungaryNot Yet Recruiting
University of SzegedSzeged, HungaryNot Yet Recruiting
Ospedale Di Summa - PerrinoBrindisi, ItalyNot Yet Recruiting
Niguarda hospitalMilan, ItalyNot Yet Recruiting
A.O.U. Maggiore della Carita di NovaraNovara, ItalyRecruiting
Ospedale di Piove di SaccoPiove di Sacco, ItalyNot Yet Recruiting
Fondazione Policlinico Universitario "Agostino Gemelli" Università Cattolica del Sacro CuoreRoma, ItalyNot Yet Recruiting
SS Annunziata TarantoTaranto, ItalyNot Yet Recruiting
Unidade local de Saúde de Coimbra, EPE - Centro Hospitalar Universitario de CoimbraCoimbra, PortugalNot Yet Recruiting
Hospital Universitario 12 de OctubreMadrid, SpainNot Yet Recruiting
Hospital Universitario La FeValencia, SpainNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT07608822