Lumacaftor Yields Reversal of Impaired Cerebral Blood Flow in Heart Failure Patients

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorQanatpharma AG

About this trial

Cognitive impairment (CI) is highly prevalent in patients with heart failure with reduced ejection fraction (HFrEF), which has significant implications for disease management, quality of life and clinical outcomes. Currently, there are no specific treatments for CI aside from the current standard of care therapy for HF, making this a high unmet medical need. Impaired cerebral autoregulation is a proposed mechanistic factor that leads to cerebral hypoperfusion, ischemic damage and the development for CI. Preclinical data indicates that restoring CFTR-protein expression normalizes cerebral microvascular function and cerebral blood flow (CBF) in models of HF. The purpose of this study is to investigate whether CFTR-targeting therapy enhances cerebral perfusion and cognitive function in heart failure patients using the CFTR-corrector Lumacaftor.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Provide written informed consent

Aged 18 years or older with stable heart failure NYHA class II-III, with reduced cardiac output and an EF of <40% on optimal goal directed medical therapy as per CCS Guidelines and the AHA/ACC/HFSA Guidelines for the Management of Heart Failure

No hospital admissions for inpatient care in 3 months prior to study

CBF at screening of ≤45 mL/100g/min

Disqualifiers

Participants with symptomatic HF who have non-MRI compatible cardiac implantable electronic devices (CIEDs), such as a cardiac defibrillator or pacemaker, or in whom this is required within 3 months of the study

Those requiring coronary revascularisation in 6 months following the study

Participants with cystic fibrosis (CF) or any other condition that may require use of CFTR modulating agents

Participants using antiallergics (e.g., montelukast), antibiotics (e.g., clarithromycin), anticoagulants (e.g., warfarin), anticonvulsants (e.g., carbamazepine), antidepressants (e.g., citalopram), antifungals (e.g., fluconazole), anti-mycobacterials (e.g., rifabutin), barbituates, benzodiazepines (e.g., midazolam), immunosuppressants (e.g., cyclosporine), proton pump inhibitors (e.g., esomeprazole) within 30 days of trial start

Trial design

Design model

Parallel

Treatments tested in this trial

  • Lumacaftor 200 MG

    Drug

    Lumacaftor 200 mg q12

  • Placebo

    Drug

    Identical placebo

Treatment groups

60 Participants
are divided into 2 treatment groups
Group A: LumacaftorExperimental treatment 1 intervention
Group B: PlaceboPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

Efficacy of lumacaftor treatment in increasing cerebral blood flow versus placebo in HFrEF patients.

Change from baseline in global cerebral blood flow at 1 month using treatment or placebo as assessed by perfusion weighted MRI.

Time frame
Baseline and 1 month

Secondary outcomes

1

Rate of treatment-emergent adverse events as assessed by MedDRA.

Number of treatment-emergent AEs by severity and treatment received. This will capture participants who received at least one dose of treatment.

Time frame
Baseline up to Day 90
2

Number of participants with clinically significant changes from baseline in physical examinations findings at 1 week, 1 month and 3 months.

Time frame
Baseline, 1 week, 1 month and 3 months
3

Number of participants with clinically significant changes from baseline in vital signs at 1 week, 1 month and 3 months.

Time frame
Baseline, 1 week, 1 month and 3 months
4

Number of participants with clinically significant changes from baseline in electrocardiograms (ECGs) at 1 week, 1 month and 3 months.

Time frame
Baseline, 1 week, 1 month and 3 months

Other outcomes

Sponsors and contacts

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Qanatpharma AG

Lead sponsor

Qanatpharma Canada LTD

Collaborator