New pill aims to tame chaotic heartbeats in atrial fibrillation

NCT ID NCT07267949

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 2 trial tests whether the experimental drug AP31969 can reduce the amount of time people with atrial fibrillation spend in an irregular heart rhythm. Two hundred adults with paroxysmal or persistent AF will receive either AP31969 or a placebo twice daily for several weeks. The main goal is to see if the drug lowers AF burden, measured by a heart monitor, and improves quality of life.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

AP31969 (oral tablet)

What this could lead to

If successful, this could provide a new oral medication to better control atrial fibrillation and improve quality of life for patients.

What could go wrong

This is an early Phase 2 trial with only 200 participants, so results may not confirm effectiveness or safety. The drug may not reduce AF burden more than placebo.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for ATRIAL FIBRILLATION (AF) are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

atrial fibrillation

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • ASST Grande Ospedale Metropolitano Niguarda Cardiology 3 - Electrophysiology "De Gasperis" Cardio Center

    RECRUITING

    Milan, 20162, Italy

  • Acibadem City Clinic, Cardiology Department

    RECRUITING

    Sofia, SOF, 1000, Bulgaria

  • Aleksandrovska University Hospital, Clinic of Cardiology

    RECRUITING

    Sofia, SOF, 1431, Bulgaria

  • Arcispedale Sant'Anna, Cardiology Department

    RECRUITING

    Cona, FE, 444124, Italy

  • Belvárosi Egészségház, Platán Magánklinika

    RECRUITING

    Zalaegerszeg, 8900, Hungary

  • Budai Irgalmasrendi Kórház

    RECRUITING

    Budapest, 1023, Hungary

  • Centrum Medyczne KERmed Cardiology Department

    RECRUITING

    Bydgoszcz, 85-231, Poland

  • Dell'Angelo Hospital, Cardiology Department

    RECRUITING

    Mestre, VE, 30174, Italy

  • Deventer Ziekenhuis, Cardiology Department

    RECRUITING

    Deventer, 7416 SE, Netherlands

  • Frisius MC Leeuwarden, Hart- en Vaatcentrum

    RECRUITING

    Leeuwarden, 8934 AD, Netherlands

  • Gornoslaskie Centrum Medyczne im. prof. Leszka Gieca Slaskiego Uniwersytetu Medycznego w Katowicach

    NOT_YET_RECRUITING

    Katowice, 40-635, Poland

  • HagaZiekenhuis, Cardiology/Electrophysiology Unit

    NOT_YET_RECRUITING

    The Hague, 2545 AA, Netherlands

  • Health Center Uzice Cardiology Department

    NOT_YET_RECRUITING

    Užice, 33100, Serbia

  • Institute for Cardiovascular Disease "Dedinje" Department for Electrophysiology

    NOT_YET_RECRUITING

    Belgrade, Serbia

  • Institute for Cardiovascular Diseases Vojvodina Department of Interventional Electrophysiology

    RECRUITING

    Kamenitz, Serbia

  • Jász-Nagykun-Szolnok Vármegyei Hetényi Géza Kórház-Rendelőintézet

    RECRUITING

    Szolnok, 5000, Hungary

  • MHAT National Cardiology Hospital EAD, Cardiology Department

    WITHDRAWN

    Sofia, SOF, 1365, Bulgaria

  • Maastricht University Medical Center, Cardiology Department

    NOT_YET_RECRUITING

    Maastricht, 6229 HX, Netherlands

  • Martini Hospital Groningen, Cardiology Department

    RECRUITING

    Groningen, 9728 NT, Netherlands

  • Małopolskie Centrum Sercowo-Naczyniowe PAKS Oddział Intensywnej Opieki Kardiologicznej

    RECRUITING

    Chrzanów, 85-231, Poland

  • Medical Center Nova Clinic

    RECRUITING

    Varna, VAR, 9020, Bulgaria

  • Máxima Medisch Centrum, Cardiology Department

    RECRUITING

    Veldhoven, 5504 DB, Netherlands

  • One Day Med Sp. z o.o. Clinical Trials Department

    RECRUITING

    Szczecin, 70-419, Poland

  • Policlinico Sant'Orsola Cardiology Department

    RECRUITING

    Bologna, BO, 40138, Italy

  • Polsko-Amerykańskie Kliniki Serca III Oddział Kardiologii Inwazyjnej, Angiologii i Elektrokardiologii

    RECRUITING

    Dąbrowa Górnicza, 41-300, Poland

  • Polsko-Amerykańskie Kliniki Serca X Oddział Kardiologii Inwazyjnej, Elektrofizjologii i Elektrostymulacji w Tychach im

    RECRUITING

    Tychy, 43-100, Poland

  • Rijnstate Ziekenhuis, Cardiology Department

    RECRUITING

    Arnhem, 6815 AD, Netherlands

  • Rivierenland Hospital, Cardiology Department

    RECRUITING

    Tiel, 4002 WP, Netherlands

  • SHATC Cardiolife, Invasive Cardiology

    RECRUITING

    Varna, VAR, 9000, Bulgaria

  • Sana Kliniken Oberfranken, Klinikum Coburg Kardiologie und Innere Medizin

    RECRUITING

    Coburg, 96450, Germany

  • Semmelweis Egyetem Városmajori Sziv- és Érsebészeti Klinika

    RECRUITING

    Budapest, 1122, Hungary

  • Soproni Gyógyközpont Soproni Erzsébet Oktató Kórház és Rehabilitációs Intézet

    NOT_YET_RECRUITING

    Sopron, 9400, Hungary

  • Spaarne Gasthuis, Cardiology Department

    RECRUITING

    Haarlem, 2035 RC, Netherlands

  • Szent-Györgyi Albert Klinikai Központ, Belgyógyászati Klinika

    RECRUITING

    Szeged, 6725, Hungary

  • UMHAT "Sveti Georgi" EAD, Department of Invasive Cardiology

    RECRUITING

    Plovdiv, PD, 4002, Bulgaria

  • Universitaets Klinikum Hamburg-Eppendorf (UKE Hamburg), Kardiologie

    RECRUITING

    Hamburg, 20246, Germany

  • University Clinical Center Kragujevac Clinic of Cardiology (Depar. Electrophysiology)

    RECRUITING

    Kragujevac, Serbia

  • University Clinical Center Nis Clinic for Cardiovascular Diseases Bulevar

    RECRUITING

    Niš, Serbia

  • University Clinical Centre of Serbia Department for Intensive Care in Arrhythmology

    RECRUITING

    Belgrade, Serbia

  • University Hospital Herlev and Gentofte Department of Cardiology

    RECRUITING

    Hellerup, 2730, Denmark

  • University of Modena and Reggio Emilia, Policlinico di Modena, Cardiology Department

    RECRUITING

    Modena, 30174, Italy

  • Universitätsklinikum Frankfurt Medizinische Klinik III - Kardiologie, Angiologie, Hämostaseologie, Nephrologie

    RECRUITING

    Frankfurt, 60590, Germany

  • Upper-Silesian Medical Center 2nd Department of Cardiology

    NOT_YET_RECRUITING

    Katowice, 40-635, Poland

  • Viborg Hospital, Department of Cardiology

    RECRUITING

    Viborg, 8800, Denmark