Moderato System: A Double-Blind Randomized Trial Ver 1.1

NCT ID: NCT02837445

Last Updated: 2022-12-14

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

170 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-07-12

Study Completion Date

2023-03-31

Brief Summary

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The purpose of this double blind randomized study is the evaluation of the safety and efficacy of the Moderato System.

The Moderato implantable pulse generator is indicated for patients who have hypertension and also require a dual chamber pacemaker in order to reduce their blood pressure.

The primary objectives of this study are to provide evidence of safety and clinical efficacy of the anti-hypertensive effects of the Moderato System. This will be accomplished by evaluating changes in blood pressure in an active treatment vs. a control patient population for a period of 6 months.

The device will be considered to have a clinical effectiveness with regard to its anti-hypertension functions if there is a statistically significant and clinically meaningful reduction in mean 24-hour ambulatory systolic blood pressure in the treatment group compared to the control group.

Detailed Description

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Protocol CS-03 Ver 1.1 (NCT02837445) was amended at the advice of the Scientific Advisory to protocol CS-03 Version 3.0 with more stringent hypertension inclusion criteria and different observation intervals for efficacy and safety.

In CS-03 Version 3.0 the time of the primary efficacy endpoint was reduced from 6 months to 3 months post randomization which was deemed a suitable interval for the chronic effect, whereas for the safety endpoint, the period was lengthened from 6 month to 12 months post randomization to better monitor potential risks of the treatment on cardiac function (Blinding period was increased from 6 to 12 months). Protocols were thus split in order to allow better clarification to the difference in the time to the primary endpoints for efficacy and safety between the two CIP versions and simplify data analysis.

Protocol Ver 3.0 prescribes data analysis of all patients randomized under version 1.1 to be performed once they complete the 6 months follow-up as set in protocol version 1.1 (NCT0283744). It is expected that \~40 patients will be randomized according to protocol version 1.1 prior to the enrollment of patients according to protocol version 3.0. The results will be considered as interim analysis.

The recruitment for the protocol version 1.1 is now completed. Total of 47 patients were randomized according to protocol version 1.1 and all patients completed the follow-up period for the primary endpoint.

Patients are currently being followed up for the study "extension period".

Conditions

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Hypertension Resistant to Conventional Therapy Bradycardia Atrioventricular Block

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Treatment

Eligible patients randomized after optimization phase to PHC ON for 6 months Patients continue standard or modified anti-hypertension medical regime at discretion of the investigator

Group Type ACTIVE_COMPARATOR

PHC ON

Intervention Type DEVICE

Eligible patients randomized after optimization phase to PHC ON for 6 months. Patients continue standard or modified anti-hypertension medical regime at discretion of the investigator

Control

Eligible patients randomized after optimization phase to pacemaker only (PHC OFF) for 6 months. Patients continue standard or modified anti-hypertension medical regime at discretion of the investigator

Group Type PLACEBO_COMPARATOR

PHC OFF

Intervention Type DEVICE

Eligible patients randomized after optimization phase to PHC OFF for 6 months. Patients continue standard or modified anti-hypertension medical regime at discretion of the investigator.

Interventions

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PHC ON

Eligible patients randomized after optimization phase to PHC ON for 6 months. Patients continue standard or modified anti-hypertension medical regime at discretion of the investigator

Intervention Type DEVICE

PHC OFF

Eligible patients randomized after optimization phase to PHC OFF for 6 months. Patients continue standard or modified anti-hypertension medical regime at discretion of the investigator.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Subject requires an implant or replacement a of dual chamber pacemaker
* Stable (at least one month) hypertension treatment with at least 1 anti-hypertensive drug, which is anticipated to be maintained for 7 months.
* Average day time (7AM-10PM) ambulatory systolic blood pressure ≥ 130 mmHg and office blood pressure ≥140 mmHg.
* Subject lives in the proximity of the study center, which permits compliance with study visits for at least 7 months.

Exclusion Criteria

* Known secondary cause of HTN.
* Average ambulatory or office systolic BP \> 195 mmHg.
* Permanent atrial fibrillation.
* History of significant paroxysmal atrial fibrillation/flutter burden (defined as \>25% of beats).
* Cardiac ejection fraction \<50%.
* Symptoms of heart failure, NYHA Class II or greater.
* Hypertrophic cardiomyopathy, restrictive cardiomyopathy or inter-ventricular septal thickness ≥ 15 mm.
* Subject is on dialysis.
* Subject has an estimated Glomerular Filtration Rate \< 30 ml/min/1.73 m²
* Prior neurological events (stroke or TIA) within the past year or events at a prior time that has resulted in residual neurologic deficit.
* Carotid artery disease.
* Known autonomic dysfunction.
* History of clinically significant untreated ventricular tachyarrhythmia or has experienced sudden death.
* Previous active device-based treatment for HTN.
* Existing implant, other than a pacemaker that needs replacing.
* Subject is or has the possibility of becoming pregnant and is unwilling of contraception during the study.
* Subject is unwilling or cannot provide Informed Consent
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Massachusetts General Hospital

OTHER

Sponsor Role collaborator

MLM Medical Labs GmbH

INDUSTRY

Sponsor Role collaborator

nabios GmbH

UNKNOWN

Sponsor Role collaborator

BackBeat Medical Inc

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Karl-Heinz Kuck, Prof. MD

Role: PRINCIPAL_INVESTIGATOR

Asklepios Klinik St. Georg

Locations

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Krankenhaus der Elisabethinen

Linz, , Austria

Site Status

Medical University Vienna

Vienna, , Austria

Site Status

UZ Brussel - Heart Rhythm Management Center

Brussels, , Belgium

Site Status

Na Homolce Hospital

Prague, , Czechia

Site Status

Semmelweis University Heart and Vascular Center

Budapest, , Hungary

Site Status

P. Stradins Clinical University Hospital

Riga, , Latvia

Site Status

Vilnius University Hospital Santariskiu Klinikos

Vilnius, , Lithuania

Site Status

Medical University of Gdansk

Gdansk, , Poland

Site Status

Szpital Kliniczny Przemiemienia Panskiego

Poznan, , Poland

Site Status

Pomeranian Medical University Hospital no. 2

Szczecin, , Poland

Site Status

Samodzielnym Publicznym Centralnym Szpitalem Klinicznym

Warsaw, , Poland

Site Status

Silesian Center for Heart Diseases

Zabrze, , Poland

Site Status

Countries

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United Kingdom Austria Belgium Czechia Hungary Latvia Lithuania Poland

References

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Chovanec M, Merkely B, Sokal A, Petru J, Kralovec S, Drtina T, Mudroch M, Geller L, Osztheimer I, Morawski S, Mika YH, Fischer A, Evans SJ, Aviv R, Rosenthal N, Burkhoff D, Kuck KH, Neuzil P. Pressure-Volume Analysis Demonstrates Short- and Long-Term Hemodynamic Effects of Atrioventricular Interval Modulation Therapy in Hypertension. JACC Clin Electrophysiol. 2025 Jul 22:S2405-500X(25)00518-3. doi: 10.1016/j.jacep.2025.06.017. Online ahead of print.

Reference Type DERIVED
PMID: 40801869 (View on PubMed)

Kalarus Z, Merkely B, Neuzil P, Grabowski M, Mitkowski P, Marinskis G, Erglis A, Kazmierczak J, Sturmberger T, Sokal A, Pluta S, Geller L, Osztheimer I, Malek F, Kolodzinska A, Mika Y, Evans SJ, Hastings HM, Burkhoff D, Kuck KH. Pacemaker-Based Cardiac Neuromodulation Therapy in Patients With Hypertension: A Pilot Study. J Am Heart Assoc. 2021 Aug 17;10(16):e020492. doi: 10.1161/JAHA.120.020492. Epub 2021 Aug 13.

Reference Type DERIVED
PMID: 34387126 (View on PubMed)

Other Identifiers

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CS-03 Ver 1.1

Identifier Type: -

Identifier Source: org_study_id