Clinical Randomised Phase 2 Trial of AP31969 Versus Placebo for Rhythm Control of Atrial Fibrillation

NCT ID: NCT07267949

Last Updated: 2025-12-05

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

PHASE2

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-22

Study Completion Date

2026-12-31

Brief Summary

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A clinical Randomized Phase 2 Trial of AP31969 versus Placebo for Rhythm Control of Atrial Fibrillation.

Detailed Description

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The key goal of this clinical trial is to assess the effectiveness of different doses of AP31969 in lowering Atrial Fibrillation (AF) burden and its safety.

Participants will be randomly assigned to one of the following groups:

* AP31969 at 100 mg, 200 mg, or 350 mg doses
* AP31969 500 mg (not included at the trial start)
* Placebo (inactive treatment and has no active properties). The placebo group serves as the comparator for AP31969. All treatments are given orally, twice daily.

The trial includes 3 periods: screening (up to 4 weeks), treatment (12 weeks), and follow-up (30 days). The duration of the trial for a participant is approximately 20 weeks.

Participants will receive an implantable loop recorder and undergo assessments during the visits at specific times, for example blood and urine analyses, and electrocardiogram.

Conditions

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Atrial Fibrillation (AF)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Also the blinded CRO team will not be made aware of the treatment group assignment during the trial.

Study Groups

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AP31969 100 mg

Tablets, Twice daily, 12 Weeks

Group Type EXPERIMENTAL

AP31969

Intervention Type DRUG

Tablets, Oral, Twice daily.

AP31969 200 mg

Tablets, Twice daily, 12 Weeks

Group Type EXPERIMENTAL

AP31969

Intervention Type DRUG

Tablets, Oral, Twice daily.

AP31969 350 mg

Tablets, Twice daily, 12 Weeks

Group Type EXPERIMENTAL

AP31969

Intervention Type DRUG

Tablets, Oral, Twice daily.

AP31969 500 mg

Tablets, Twice daily, 12 Weeks

Group Type EXPERIMENTAL

AP31969

Intervention Type DRUG

Tablets, Oral, Twice daily.

Placebo

Tablets, Twice daily, 12 Weeks

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Tablets, oral, Twice daily.

Interventions

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AP31969

Tablets, Oral, Twice daily.

Intervention Type DRUG

Placebo

Tablets, oral, Twice daily.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Willing and able to provide written informed consent.
* Age 18 or older.
* ECG documented diagnosis of paroxysmal or persistent AF.
* AF history at screening indicating an expected AF burden of 1-90%, i.e., at least 1 self-terminating AF episode within 4 months prior to the screening visit.
* AF burden of ≥ 1% and ≤ 90% assessed with an ECG patch device during the screening period prior to the randomisation visit.
* Investigator and participant agreement to avoid non-trial related rhythm control intervention for the duration of the trial, including:

* Antiarrhythmic drug class I and/or III (including amiodarone)
* Electrical or pharmacological cardioversion
* AF ablation procedure
* Willing to have a loop recorder implanted.

Exclusion Criteria

* Prior AF ablation procedure other than pulmonary vein isolation (PVI) only.
* Any of the following events within 4 weeks prior to the screening visit: Myocardial infarction, Unstable angina pectoris, Stroke or transient, ischaemic attack, Percutaneous coronary intervention (PCI), Coronary artery bypass graft (CABG), Peripheral revascularisation procedure.
* Cardiac pacing device e.g. pacemaker and cardiac resynchronization therapy device with atrial or ventricular pacing for \> 5% of the time or existing implantable loop recorder.
* Heart failure, New York Heart Association class III (3) or IV (4).
* Left ventricular ejection fraction \< 40% based on imaging (e.g. echocardiography) performed within 6 months prior to or during the screening visit.
* Clinically significant valvular heart disease, including severe aortic stenosis, severe mitral regurgitation and/or severe mitral stenosis, in the opinion of the investigator.
* QTc (Fridericia, QTcF) interval \> 450 ms for males and \> 470 ms for females at screening.
* eGFR \<60 mL/min /1.73 m² based on creatine and CKD-EPI formula
* Use of antiarrhythmic drug class I and/or III within 7 days or, for amiodarone, within 3 months prior to the screening visit.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Acesion Pharma

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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UMHAT "Sveti Georgi" EAD, Department of Invasive Cardiology

Plovdiv, PD, Bulgaria

Site Status NOT_YET_RECRUITING

Acibadem City Clinic, Cardiology Department

Sofia, SOF, Bulgaria

Site Status RECRUITING

MHAT National Cardiology Hospital EAD, Cardiology Department

Sofia, SOF, Bulgaria

Site Status WITHDRAWN

Aleksandrovska University Hospital, Clinic of Cardiology

Sofia, SOF, Bulgaria

Site Status NOT_YET_RECRUITING

SHATC Cardiolife, Invasive Cardiology

Varna, VAR, Bulgaria

Site Status RECRUITING

Medical Center Nova Clinic

Varna, VAR, Bulgaria

Site Status RECRUITING

University Hospital Herlev and Gentofte Department of Cardiology

Hellerup, , Denmark

Site Status RECRUITING

Viborg Hospital, Department of Cardiology

Viborg, , Denmark

Site Status RECRUITING

Sana Kliniken Oberfranken, Klinikum Coburg Kardiologie und Innere Medizin

Coburg, , Germany

Site Status NOT_YET_RECRUITING

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

Frankfurt, , Germany

Site Status RECRUITING

Universitaets Klinikum Hamburg-Eppendorf (UKE Hamburg), Kardiologie

Hamburg, , Germany

Site Status RECRUITING

Budai Irgalmasrendi Kórház

Budapest, , Hungary

Site Status NOT_YET_RECRUITING

Semmelweis Egyetem Városmajori Sziv- és Érsebészeti Klinika

Budapest, , Hungary

Site Status RECRUITING

Soproni Gyógyközpont Soproni Erzsébet Oktató Kórház és Rehabilitációs Intézet

Sopron, , Hungary

Site Status NOT_YET_RECRUITING

Szent-Györgyi Albert Klinikai Központ, Belgyógyászati Klinika

Szeged, , Hungary

Site Status NOT_YET_RECRUITING

Jász-Nagykun-Szolnok Vármegyei Hetényi Géza Kórház-Rendelőintézet

Szolnok, , Hungary

Site Status NOT_YET_RECRUITING

Belvárosi Egészségház, Platán Magánklinika

Zalaegerszeg, , Hungary

Site Status NOT_YET_RECRUITING

Policlinico Sant'Orsola Cardiology Department

Bologna, BO, Italy

Site Status NOT_YET_RECRUITING

Arcispedale Sant'Anna, Cardiology Department

Cona, FE, Italy

Site Status NOT_YET_RECRUITING

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

Milan, Michigan, Italy

Site Status NOT_YET_RECRUITING

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

Modena, Missouri, Italy

Site Status NOT_YET_RECRUITING

Dell'Angelo Hospital, Cardiology Department

Mestre, VE, Italy

Site Status NOT_YET_RECRUITING

Rijnstate Ziekenhuis, Cardiology Department

Arnhem, , Netherlands

Site Status RECRUITING

Deventer Ziekenhuis, Cardiology Department

Deventer, , Netherlands

Site Status RECRUITING

Martini Hospital Groningen, Cardiology Department

Groningen, , Netherlands

Site Status RECRUITING

Spaarne Gasthuis, Cardiology Department

Haarlem, , Netherlands

Site Status RECRUITING

Frisius MC Leeuwarden, Hart- en Vaatcentrum

Leeuwarden, , Netherlands

Site Status RECRUITING

Maastricht University Medical Center, Cardiology Department

Maastricht, , Netherlands

Site Status NOT_YET_RECRUITING

HagaZiekenhuis, Cardiology/Electrophysiology Unit

The Hague, , Netherlands

Site Status NOT_YET_RECRUITING

Rivierenland Hospital, Cardiology Department

Tiel, , Netherlands

Site Status RECRUITING

Máxima Medisch Centrum, Cardiology Department

Veldhoven, , Netherlands

Site Status RECRUITING

Centrum Medyczne KERmed Cardiology Department

Bydgoszcz, , Poland

Site Status NOT_YET_RECRUITING

Małopolskie Centrum Sercowo-Naczyniowe PAKS Oddział Intensywnej Opieki Kardiologicznej

Chrzanów, , Poland

Site Status NOT_YET_RECRUITING

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

Dąbrowa Górnicza, , Poland

Site Status RECRUITING

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

Katowice, , Poland

Site Status NOT_YET_RECRUITING

Upper-Silesian Medical Center 2nd Department of Cardiology

Katowice, , Poland

Site Status NOT_YET_RECRUITING

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

Szczecin, , Poland

Site Status NOT_YET_RECRUITING

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

Tychy, , Poland

Site Status RECRUITING

Countries

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Bulgaria Denmark Germany Hungary Italy Netherlands Poland

Central Contacts

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Birgitte Vestbjerg

Role: CONTACT

+0045 2077 2575

Other Identifiers

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2025-521377-14-00

Identifier Type: CTIS

Identifier Source: secondary_id

AP31969-M201

Identifier Type: -

Identifier Source: org_study_id

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