NCT05719454

Brief Summary

After meeting all inclusion/exclusion criteria, subjects on standard pacing with the Moderato® or Moderato Plus Implantable Pulse Generator (IPG) will be subjected to two set-up sessions for the CNT algorithm: at week 4 and at week 6 post implant. At the end of these visits, subjects will undergo a 24 ambulatory blood pressure recording after which CNT will be automatically turned OFF and standard pacing will resume. The ambulatory data will provide the basis for a lasting CNT programming by week 8. Follow up visits will be scheduled after 3, 6, and 12 months.

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable hypertension

Timeline
19mo left

Started Jun 2023

Longer than P75 for not_applicable hypertension

Geographic Reach
3 countries

7 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress66%
Jun 2023Feb 2028

First Submitted

Initial submission to the registry

January 9, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

February 9, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

June 21, 2023

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2027

Expected
1.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2028

Last Updated

March 9, 2026

Status Verified

March 1, 2026

Enrollment Period

3.6 years

First QC Date

January 9, 2023

Last Update Submit

March 6, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • CNT efficacy: Changes in average 24 hour systolic ambulatory blood pressure

    The change in the 24 hr blood pressure recording after each of the two set up sessions (week 4 and week 6) will be compared to the 24 hr ambulatory data of the control (week 3).

    up to 12 Month follow-up visit

  • CNT safety: Incidence of device- and treatment-related adverse and serious adverse

    Incidence of device- and treatment-related adverse and serious adverse events during the study.

    up to 12 Month follow-up visit

Study Arms (3)

CNT Setup Algorithm Version 1

EXPERIMENTAL

When performing the Setup Algorithm Version 1, each subject's blood pressure is measured with a standard cuff system while the BackBeat-CNT is activated, and system parameters are varied successively according to a specified sequence or based on the blood pressure measurements obtained during previous activations of BackBeat CNT, until the Setup Algorithm is complete. The parameter values as determined by the Setup Algorithm will constitute the programming of the Moderato IPG for the 24 hour activation following setup.

Device: CNT testing

CNT Setup Algorithm Version 2

EXPERIMENTAL

When performing the Setup Algorithm Version 1, each subject's blood pressure is measured with a standard cuff system while the BackBeat-CNT is activated, and system parameters are varied successively according to a specified sequence or based on the blood pressure measurements obtained during previous activations of BackBeat CNT, until the Setup Algorithm is complete. The parameter values as determined by the Setup Algorithm will constitute the programming of the Moderato IPG for the 24 hour activation following setup.

Device: CNT testing

CNT therapy optimization without use of the Setup Algorithm

OTHER

For this optimization procedure, each subject's blood pressure is measured with a continuous blood pressure measurement system while the BackBeat-CNT is activated, and system parameters are varied according to a specified sequence until the desired blood pressure reduction is achieved. The parameter values that provide the desired blood pressure reduction will be recorded, for possible use by the investigator following trial completion

Device: CNT testing

Interventions

The effect of CNT on blood pressure will be obtained throughout the year long follow up period.

CNT Setup Algorithm Version 1CNT Setup Algorithm Version 2CNT therapy optimization without use of the Setup Algorithm

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subject is ≥ 18 years of age
  • Subject requires implantation or replacement of a dual chamber pacemaker or requires an upgrade from a single chamber to a dual chamber pacemaker.
  • Subject has stable (for prior 1 month) hypertension treatment with 1, 2 or 3 antihypertensive drugs, which is planned to be maintained without changes for a period of at least 2 months post implant.
  • Subject has an office systolic blood pressure (oSBP) ≥140 and \<180 mmHg
  • At 4 weeks from device implant, subject has an average 24-Hour ambulatory systolic blood pressure (aSBP) ≥130 mmHg and \<170 mmHg and an office blood pressure (oSBP) ≥140 and \<180 mmHg.
  • Subject is willing and able to comply with study visits and procedures
  • Subject is willing to adhere to the prescribed baseline antihypertension medical regimen for the duration of the study.

You may not qualify if:

  • \. Subject has a known secondary cause of HTN (e.g. renal vascular disease, hyperthyroidism, hyperaldosterone and pheochromocytoma)
  • Subject has permanent atrial fibrillation
  • Subject has intermittent paroxysmal atrial fibrillation/flutter with significant burden (i.e., \>10% atrial fibrillation/flutter beats if available.
  • Subject has an ejection fraction \<50%
  • Subject has a drop of \> 15% (absolute) in ejection fraction from baseline to week 4
  • Subject has symptoms of heart failure, NYHA Class II or greater
  • Subject has mitral regurgitation ≥2+, aortic stenosis with valve area \<1.0 cm2 , or is expected to need a valve repair or replacement.
  • Subject has a history of stroke or TIA within 12 months or any prior stroke with a residual neurological deficit (modified Rankin Score \>2+)
  • Subject experienced myocardial infarction (MI) within 3 months prior to enrolment
  • Subject had a cardiovascular interventional procedure or cardiovascular surgery within 6 months prior to enrolment
  • Subject has hypertrophic cardiomyopathy, restrictive cardiomyopathy or interventricular septal thickness ≥15 mm
  • Subject is on dialysis
  • Subject has estimated glomerular filtration rate (GFR) \<30 ml/min/1.73m²
  • Subject has significant (\>50% occlusion of left or right carotid artery) carotid artery stenosis
  • Subject has a history of clinically significant untreated ventricular tachyarrhythmia or has experienced sudden cardiac arrest
  • +6 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Nemocnice Na Homolce (Na Homolce Hospital)

Prague, 15030, Czechia

NOT YET RECRUITING

Semmelweis University Heart and Vascular Center

Budapest, 1122, Hungary

RECRUITING

Jagiellonian University Hospital

Krakow, 30-688, Poland

NOT YET RECRUITING

Uniwersytecki Szpital Kliniczny w Poznaniu

Poznan, 61-848, Poland

NOT YET RECRUITING

Samodzielny Pub. Szpital Kliniczny nr 2 PUM

Szczecin, 72 70-111, Poland

NOT YET RECRUITING

Publiczny Centralny Szpital

Warsaw, 02-097, Poland

NOT YET RECRUITING

Silesian Center for Heart Diseases

Zabrze, 41-800, Poland

NOT YET RECRUITING

MeSH Terms

Conditions

HypertensionBradycardia

Condition Hierarchy (Ancestors)

Vascular DiseasesCardiovascular DiseasesArrhythmias, CardiacHeart DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Béla MERKELY, Prof. MD

    Semmelweis University Heart and Vascular Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: All subjects will undergo in visits 4 and 5 two sessions to test two different setup CNT Algorithms. One version will favor atrial pacing. The order of the setup versions will alternate, whereby subjects will start with setup version 1 or setup version 2 Subjects will be sequentially assigned to Version 1 or 2 on alternating basis: first subject to Version 1, second to Version 2, third to Version 1, etc. hey will also undergo setup without the use of an algorithm, similar to the method used in the MODERATO II study.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 9, 2023

First Posted

February 9, 2023

Study Start

June 21, 2023

Primary Completion (Estimated)

January 31, 2027

Study Completion (Estimated)

February 28, 2028

Last Updated

March 9, 2026

Record last verified: 2026-03

Locations