A Registry-based Cluster Randomized Trial to Compare the Effect of Spironolactone vs. Eplerenone on Clinical Outcomes in Patients With Symptomatic Systolic Heart Failure
Launched by BISPEBJERG HOSPITAL · Jun 11, 2019
Trial Information
Current as of November 14, 2025
Enrolling by invitation
Keywords
ClinConnect Summary
This Danish study is comparing two approved heart failure medicines, spironolactone and eplerenone, to see which works better for people with systolic heart failure (when the heart pumps less effectively and the heart’s ejection fraction is below 40%). The trial is run through heart failure clinics across Denmark, and each clinic will switch between the two drugs in different time blocks. The main goal is to find out if one drug reduces the risk of death or hospital stays for heart failure over about 5–6 years, with outcomes tracked using national health records.
Who can be part? The study includes children, adults, and older adults who are registered in the Danish Heart Failure Registry, have systolic heart failure with an ejection fraction under 40%, and have a prescription for an aldosterone antagonist (spironolactone or eplerenone) at the time of registration. People who had previously used an aldosterone antagonist before registration are not eligible. If you’re eligible, you would receive one of the two drugs according to the clinic’s schedule and current guidelines. Data about outcomes are collected from Danish health records, so there may be no extra in-person visits beyond standard care. The study is enrolling by invitation and is expected to complete in 2028, with data stored securely in Denmark.
Gender
ALL
Eligibility criteria
- Inclusion Criteria:
- • all patients registered in the Danish Heart Failure Registry who has a baseline left ventricular ejection fraction \<40% and who has filled in a prescription for an aldosterone antagonist
- Exclusion Criteria:
- • patients who had filled in a prescription for an aldosterone antagonist prior ro registration in the Danish Heart Failure Registry
About Bispebjerg Hospital
Bispebjerg Hospital is a leading healthcare institution located in Copenhagen, Denmark, renowned for its commitment to innovative medical research and clinical excellence. As a key sponsor of clinical trials, the hospital focuses on advancing healthcare by exploring novel therapies and treatment protocols across various medical disciplines. With a multidisciplinary team of experienced researchers and clinicians, Bispebjerg Hospital aims to enhance patient outcomes through rigorous scientific inquiry and evidence-based practices, while fostering collaboration with academic institutions and industry partners to drive progress in the medical field.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Copenhagen, Denmark
Patients applied
Trial Officials
Jens Jakob Thune, MD, PhD
Study Chair
Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
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