Treatment Effects of Bisoprolol and Verapamil in Symptomatic Patients With Non-obstructive Hypertrophic Cardiomyopathy

NCT ID: NCT05569382

Last Updated: 2025-03-20

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

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-10

Study Completion Date

2027-12-31

Brief Summary

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Aim: to compare the treatment effects of Bisoprolol (beta 1 receptor specific beta blocker (BB)) and Verapamil (cardio-specific calcium channel blockers (CCB)) in patients with non-obstructive hypertrophic cardiomyopathy (HCM).

Background: Hypertrophic cardiomyopathy (HCM) is characterized by hypertrophy of the left ventricular wall and a hypercontracted state of the sarcomeres. This narrows the left ventricular cavity, but though the left ejection fraction is increased the stroke volume and the cardiac output cannot be fully compensated. The disease manifestations can be mild or develop into severe functional limitations and devastating complications at early age. Dyspnea, chest pain, palpitations and syncope are the most common symptoms, and patients are at risk of supraventricular and ventricular arrhythmias. Arrhythmias and sudden cardiac deaths may precede heart failure symptoms. Patients with symptomatic HCM are treated initially with beta blockers and calcium channel blockers. However, there is limited evidence supporting the effectiveness of this guideline-recommended treatment in HCM.

Methods: The study is a multicenter, double-blinded, randomized, placebo-controlled cross-over trial. Patients are randomized in to three 35-days treatment periods with Bisoprolol, Verapamil and Placebo. Each treatment period includes a 7-days up titration period, a 21-days target dose period and a 7-days down titration period. Between treatment periods 45 days treatment pause is allowed. End point will be evaluated at day 21 (- 4 days). Patients will be evaluated by cardiopulmonary exercise test, echocardiography, 7 day Holter-monitoring, biomarkers and the Kansas City Cardiomyopathy Questionnaire (KCCQ). A subgroup of patients will also be evaluated with cardiac magnetic resonance imaging.

Hypotheses: Three separate phases each with one primary effect parameters will be analyzed between treatment with Bisoprolol and Verapamil:

Phase 1: The maximal oxygen consumption (VO2 max) is different (ΔVO2 max ≥1 ml/kg/min) between treatments in non-obstructive HCM patients Phase 2: The left ventricular enddiastolic volume (LVvol) is different (ΔLVvol ≥3 ml) between treatments in non-obstructive HCM patients.

Phase 3: The incidence of non-sustained ventricular tachycardia (NSVT) is different (Hazard ratio ≥ 0.5) between treatments in non-obstructive HCM patients.

The trial will be performed and analyzed in three phases, and each phase may be unblinded and analyzed separately.

Detailed Description

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Conditions

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Non-obstructive Hypertrophic Cardiomyopathy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

The trial will be performed and analyzed in three phases, and each phase may be unblinded and analyzed separately.

Phase one: More than 26 patients must have completed all three treatment periods. Functional analyses of VO2 max from CPX tests and secondary functional effect parameters (KCCQ, NYHA, CCS), echocardiographic parameters, biomarkers (TNI/TNT, pro-BNP/BNP).

Phase two: Between 30 to 50 patients must have completed all three treatment periods and have CMR performed in each period. Structural and hemodynamic analyses of cardiac dimensions and hemodynamic effect parameters (CMR). Sex specific analyses of functional, structural and hemodynamic effect parameters will be performed.

Phase three (n \> 82): Arrhythmic effect parameters will be analyzed from ambulatory ECG monitoring.
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Verapamil

Maximal tolerable dose (up to 360 mg per day)

Group Type ACTIVE_COMPARATOR

Verapamil

Intervention Type DRUG

1\. week: uptitration with 120 mg capsules per day, until maximum dosage of 360 mg´s/day.

2-4. week: steady state treatment with the maximum tolerated dose.

5\. week: downtitration

Bisoprolol

Maximal tolerable dose (up to 7,5 mg per day)

Group Type ACTIVE_COMPARATOR

Bisoprolol

Intervention Type DRUG

1\. week: uptitration with 2.5 mg capsules per day, until maximum dosage of 7.5 mg´s/day.

2-4. week: steady state treatment with the maximum tolerated dose.

5\. week: downtitration

Placebo

Matching placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

1\. week: uptitration with one capsules per day, until maximum dosage of three capsules/day.

2-4. week: steady state treatment with the maximum tolerated dose.

5\. week: downtitration

Interventions

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Verapamil

1\. week: uptitration with 120 mg capsules per day, until maximum dosage of 360 mg´s/day.

2-4. week: steady state treatment with the maximum tolerated dose.

5\. week: downtitration

Intervention Type DRUG

Bisoprolol

1\. week: uptitration with 2.5 mg capsules per day, until maximum dosage of 7.5 mg´s/day.

2-4. week: steady state treatment with the maximum tolerated dose.

5\. week: downtitration

Intervention Type DRUG

Placebo

1\. week: uptitration with one capsules per day, until maximum dosage of three capsules/day.

2-4. week: steady state treatment with the maximum tolerated dose.

5\. week: downtitration

Intervention Type DRUG

Other Intervention Names

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Isoptin Retard 240 MG Verapamil Hydrochloride 240 MG Bisoprolol "Krka" 2.5 MG Bisoprolol Fumarate 2.5 MG Placebo oral capsule

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years
* Maximal wall thickness ≥ 15 mm unrelated to hypertension, valve diseases or storage diseases. And one of the following:

1. New York Heart Association - functional class (NYHA) ≥ II
2. A history of NYHA class ≥ II before treatment with BB or CCB
3. Pro-BNP\>300 ng/l/35\>nmol/l or BNP \>100ng/l/\>29nmol/l
4. Non-sustained VT (\>120 min-1, ≥3 cycles) documented within the last 2 years of screening

Exclusion Criteria

* Left ventricular ejection fraction \< 50%
* LVOT gradient \>30 mmHg at rest or during Valsalva maneuver after discontinuation of BB or CCB respectively
* History of LVOT gradient \>30 mmHg at rest, during exercise or during Valsalva maneuver.
* Permanent atrial fibrillation
* Permanent right ventricular pacing
* Previous intolerance for Bisoprolol (BB) or Verapamil (CCB)
* Known present obstructive coronary disease (previous percutaneous coronary intervention is accepted)
* eGFR \< 40 ml/min
* Fertile women (\<50 years) who are pregnant (Positive Plasma-HCG), breastfeeding or not using anticonception.
* Significant liver failure
* Severe valvular disease
* Bradycardia (40bpm)
* Hypotension (systolic \<100mmHg)
* Other significant comorbidity or risks associated with discontinuation of BB or CCB after individual judgement by the investigators.
* Unable to understand patient information intellectually or linguistically
* Unable to perform exercise test.
* Unable to speak and/or understand Danish.


* Implantable cardioverter defibrillator (any kind)
* Pacemaker (any kind)
* Metal implants like to affect image quality
* Metal implants that poses a risk during CMR
* Inability to cope with being in the scanner.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Viborg Regional Hospital

OTHER

Sponsor Role collaborator

Zealand University Hospital

OTHER

Sponsor Role collaborator

Odense University Hospital

OTHER

Sponsor Role collaborator

Morten Steen Kvistholm Jensen

OTHER

Sponsor Role lead

Responsible Party

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Morten Steen Kvistholm Jensen

Consultant, PhD, Associated professor

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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Department of Cardiology, Aarhus University Hospital

Aarhus N, , Denmark

Site Status RECRUITING

Department of Cardiology, Odense University Hospital

Odense, , Denmark

Site Status RECRUITING

Department of Cardiology, Zealand University Hospital

Roskilde, , Denmark

Site Status NOT_YET_RECRUITING

Department of Cardiology, Regional Hospital Viborg

Viborg, , Denmark

Site Status NOT_YET_RECRUITING

Countries

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Denmark

Central Contacts

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Morten SK Jensen

Role: CONTACT

004540145482

Louise Bjerregaard

Role: CONTACT

004540429833

Facility Contacts

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Morten SK Jensen

Role: primary

004540145482

Louise Bjerregaard

Role: backup

004540429833

Lotte Saaby

Role: primary

Martin Snoer

Role: primary

Erik S Nielsen

Role: primary

Other Identifiers

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2021-006953-77

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

490-73-6795

Identifier Type: -

Identifier Source: org_study_id

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