ClinicalTrials.gg
RecruitingNCT07393009Updated Oct 23, 2026

BIO|STREAM.CSP Study

An observational study in Cardiac Pacing, Cardiac Pacemaker and Implantable Cardioverter Defibrillator, sponsored by Biotronik SE & Co. KG. Recruiting at 46 sites in 13 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-23.

Sponsored by Biotronik SE & Co. KG · Observational

From the registry’s dates

  • Started May 2026; still recruiting 5 months later.
Updated Oct 23, 2026Site recruiting status changed6 sites addedGo to Updates ↓
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
1,000
Ages
18 Years and older
Sex
All
01

Study summary

The registry is designed to assess outcome, performance and residual safety aspects of BIOTRONIK products which are used in the context of CSP based on long-term data from an unselected, real-life clinical set-up.

02

Conditions studied

  • Cardiac Pacing
  • Cardiac Pacemaker
  • Implantable Cardioverter Defibrillator
  • Cardiac Resynchronization Therapy Devices
  • Bradycardia
  • Tachycardia
  • Heart Failure

Keywords

  • Conduction system pacing (CSP)
  • Left bundle branch area pacing (LBBAP)
03

In context

Bradycardia

317 studies on the registry are indexed under Bradycardia; 71 are open to participants now.

This study's planned enrollment of 1,000 is above the median of 257 across 127 observational studies indexed under Bradycardia.

Browse Bradycardia studies →

Lead sponsor

Biotronik SE & Co. KG is the lead sponsor of 83 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The patient population consists exclusively of patients with an indication for pacemaker or cardiac resynchronization therapy according to the current clinical practice.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Guideline indication for pacemaker or cardiac resynchronization therapy with or without defibrillation function (CRT-P/-D)
  • Patient is intended for a de novo implantation and LBBAP therapy with an generator and an investigational lead OR has just been implanted with an investigational generator and an investigational lead positioned permanently deep within the intraventricular septum and has not yet been discharged from the hospital OR transitions from the BIO\|MASTER.CSP study
  • Ability to understand the nature of the study
  • Ability and willingness to perform all follow-up visits
  • Ability and willingness to use the CardioMessenger and acceptance of the BIOTRONIK Home Monitoring concept

Exclusion criteria

Exclusion Criteria:

  • Planned dation from intended use
  • Planned for cardiac surgical procedures, heart transplantation or interventional measures other than the study procedure within one year after enrollment
  • Life-expectancy less than 12 months
  • Pregnant or breast feeding
  • Age less than 18 years
  • Participation in an interventional clinical investigation, except for submodules within this study.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
1,000 participants (estimated)
Target follow-up
4 Years
Patient registry
Yes

Interventions

  • DeviceImplantation of the Solia CSP S pacing lead for LBBAP

    Observation of clinical routine care for patients implanted with BIOTRONIK devices used for conduction system pacing (CSP)

06

What researchers measure

Primary outcomes

  1. SADE-d free rate related to any investigatonal device

    Rate of serious adverse device effects possible, probable or causal related to any investigational device.

    Time frame: throughout study duration, average of 4 years; annual evaluations

  2. Rate of successful acute implantation in LBBAP using investigational devices in LBBAP

    All implantations, in which the investigator decides to leave the Solia CSP S pacing lead permanently deep within the intraventricular septum are counted as acute success.

    Time frame: Day 1

  3. Capture type at implantation

    The investigator confirms the type of pacing capture for any implantation in which the pacing lead is permanently positioned deep within the interventricular septum. Success rates for LBBAP and CSP are determined based on ECG parameters.

    Time frame: Day 1

  4. Long-term maintenance of LBBAP

    The investigator is asked to assess the effectiveness of LBBAP during follow-up based on the interpretation of a 12-lead ECG recording.

    Time frame: throughout study duration, average of 4 years; annual evaluations

  5. Electrical parameters - pacing threshold

    The investigators will be asked to record the pacing thresholds (Volts) of the LBBAP leads at a pulse width of 0.4 ms.

    Time frame: throughout study duration, average of 4 years; annual evaluations

  6. Electrical parameters - sensing amplitude

    The investigators will be asked to record the sensing amplitude (Millivolts) of the LBBAP leads.

    Time frame: throughout study duration, average of 4 years; annual evaluations

  7. Electrical parameters - pacing impedance

    The investigators will be asked to record the lead pacing impedance (Ohms) of the LBBAP leads.

    Time frame: throughout study duration, average of 4 years; annual evaluations

07

Study locations

12 of 46 sites recruiting
08

Updates

2 registry updates since Sep 25, 2026
Sites
6 sites added. 9 sites changed recruiting status (9 now recruiting)
Show 9 sites
  • Kepler Universitätsklinikum GmbH · Linz, AustriaNot yet recruiting→Recruiting
  • FN Kralovske Vinohrady · Prague, CzechiaNot yet recruiting→Recruiting
  • Hôpital privé du Confluent · Nantes, FranceNot yet recruiting→Recruiting
  • Krankenhaus Porz am Rhein gGmbH · Cologne, GermanyNot yet recruiting→Recruiting
  • Semmelweis University · Budapest, HungaryNot yet recruiting→Recruiting
  • Pauls Stradins Clinical University Hospital · Riga, LatviaNot yet recruiting→Recruiting
  • Fakultní nemocnice Olomouc · Olomouc, CzechiaNot yet recruiting→Recruiting
  • Hôpital Gabriel Montpied · Clermont-Ferrand, FranceNot yet recruiting→Recruiting
  • Unidade local de Saúde de Sao José, EPE - Hospital Santa Marta · Lisbon, PortugalNot yet recruiting→Recruiting
Show 6 added (2 Italy, 1 Australia, 1 France, 1 Germany, 1 Spain)
  • Northern Hospital · Melbourne, Australia
  • Institut Arnaud Tzanck · Saint-Laurent-du-Var, France
  • Klinikum Augsburg · Augsburg, Germany
  • Humanitas Gavazzeni · Bergamo, Italy
  • Policlinico Casilino · Roma, Italy
  • Hospital Clínico y Provincial de Barcelona · Barcelona, Spain
across 2 updates, Oct 13, 2026 – Oct 23, 2026
Show all 2 updates
  1. Oct 23, 2026
    6 sites added. 3 sites changed recruiting status (3 now recruiting)
    Show 3 sites
    • Fakultní nemocnice Olomouc · Olomouc, CzechiaNot yet recruiting→Recruiting
    • Hôpital Gabriel Montpied · Clermont-Ferrand, FranceNot yet recruiting→Recruiting
    • Unidade local de Saúde de Sao José, EPE - Hospital Santa Marta · Lisbon, PortugalNot yet recruiting→Recruiting
    Show 6 added (2 Italy, 1 Australia, 1 France, 1 Germany, 1 Spain)
    • Northern Hospital · Melbourne, Australia
    • Institut Arnaud Tzanck · Saint-Laurent-du-Var, France
    • Klinikum Augsburg · Augsburg, Germany
    • Humanitas Gavazzeni · Bergamo, Italy
    • Policlinico Casilino · Roma, Italy
    • Hospital Clínico y Provincial de Barcelona · Barcelona, Spain
    + 1 other change: contact details
  2. Oct 13, 2026
    6 sites changed recruiting status (6 now recruiting)
    Show 6 sites
    • Kepler Universitätsklinikum GmbH · Linz, AustriaNot yet recruiting→Recruiting
    • FN Kralovske Vinohrady · Prague, CzechiaNot yet recruiting→Recruiting
    • Hôpital privé du Confluent · Nantes, FranceNot yet recruiting→Recruiting
    • Krankenhaus Porz am Rhein gGmbH · Cologne, GermanyNot yet recruiting→Recruiting
    • Semmelweis University · Budapest, HungaryNot yet recruiting→Recruiting
    • Pauls Stradins Clinical University Hospital · Riga, LatviaNot yet recruiting→Recruiting

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07393009
Responsible party
Sponsor
First posted
Feb 6, 2026
Start date
May 25, 2026
Primary completion
Feb 1, 2033 (estimated)
Completion
Feb 1, 2033 (estimated)
Last update
Oct 23, 2026

Study contacts

Johannes Pfaffenberger
Contact
csp-stream@biotronik.com
+493068905 ext. 1318
Óscar Cano Pérez, MD, PhD
study chair · Hospital Universitario La Fe

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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