CClinicalTrials.gg
Active, not recruitingNCT04371055Find-AF2Updated Aug 28, 2026

Intensive Rhythm Monitoring to Decrease Ischemic Stroke and Systemic Embolism - the Find-AF 2 Study

An interventional study of 7-day Holter ECG and Implantable cardiac monitor in Ischemic Stroke and Atrial Fibrillation, sponsored by University of Leipzig. Active, not recruiting at 52 sites in Germany. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2026-08-28.

Sponsored by University of Leipzig · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
5,227
Allocation
Randomized
Ages
60 Years and older
Sex
All
01

Study summary

Patients who have suffered a stroke are having an increased risk of having recurrent stroke in the future. This risk of stroke is increased by atrial fibrillation, which often "comes and goes" (called paroxysmal) and hence escapes routine diagnostics. The hypothesis of Find-AF 2 is that enhanced (evaluation in a ECG core lab), prolonged (at least 7 days of rhythm monitoring annually) and intensified (continuous rhythm monitoring in high risk patients) not only finds atrial fibrillation more often, but that changes in therapeutic management (e. g. start of anticoagulation after detection of atrial fibrillation) results in a decrease of cardioembolism (which can be either recurrent stroke or systemic embolism).

To prove this hypothesis, patients will be randomised into two groups: the first group will receive the currently available standard care for patients with stroke. In the second group, cardiac rhythm monitoring adapted to the risk of the occurrence of atrial fibrillation is performed - either with a 7-day long-term ECG (at baseline, after 3 and 12 months and every 12 months thereafter) or with continuous monitoring using an implantable cardiac monitor. If atrial fibrillation is detected, this information will be given to the treating study physician. Any therapeutic decision is at the discretion of the treating physician, but should follow current guidelines.

Read the detailed description

The Find AF 2 study will investigate whether intensified rhythm monitoring in patients with recent ischemic stroke leads to a decrease in recurrent thromboembolism (defined as recurrent ischemic stroke or systemic embolism). This will be achieved by identifying patients with paroxysmal atrial fibrillation and subsequently switching secondary prevention therapy from antiplatelet therapy to oral anticoagulation. The intensity of heart rhythm monitoring will be risk-adjusted: Patients with an estimated low risk of atrial fibrillation receive a 7-day Holter ECG, which is repeated after 3 and 12 months and annually thereafter. Patients with a high risk of atrial fibrillation (defined by increased supraventricular ectopic activity) receive continuous ECG monitoring using an implanted loop recorder. The control arm is treated according to local standards, which includes cardiac rhythm monitoring for at least 24 hours according to current guidelines. Prior to randomization, a 24-hour Holter ECG is performed in both study arms, ensuring minimal ECG monitoring for patients in the control arm and allowing risk stratification in the intervention arm. Additional ECG monitoring using stroke telemetry and/or additional Holter ECGs is possible according to local standards, provided it does not exceed 7 days. Patients in both study arms will be followed up for at least 24 months.

It should be noted that this study only provides diagnostic information, the therapeutic decision is left to the treating physician.

02

Conditions studied

  • Ischemic Stroke
  • Atrial Fibrillation

Keywords

  • Atrial Fibrillation
  • Ischemic Stroke
  • ECG Monitoring
  • Secondary Prevention
03

In context

Ischemic Stroke

2,595 studies on the registry are indexed under Ischemic Stroke; 932 are open to participants now.

This study's enrollment of 5,227 is above the median of 120 across 1,754 interventional studies indexed under Ischemic Stroke.

Browse Ischemic Stroke studies →

Lead sponsor

University of Leipzig is the lead sponsor of 147 studies on the registry; 24 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Recent ischemic stroke (sudden focal neurologic deficit lasting > 24h consistent with the territory of a major cerebral artery) and/or a corresponding lesion on brain imaging within the last 30 days
  2. Age ≥ 60 years
  3. Patient without or with only slight disability (modified Rankin Scale score ≤ 2) before onset of stroke-related symptoms.
  4. Written informed consent

Exclusion criteria

Exclusion Criteria:

  1. Known history of atrial fibrillation/flutter or atrial fibrillation/flutter on admission ECG
  2. Current indication or contraindication for oral anticoagulation at randomisation
  3. Intracerebral bleeding in medical history
  4. Patient scheduled for ECG-monitoring lasting > 7 days (Holter-ECG, implanted loop recorder, etc.)
  5. Implanted pacemaker device or cardioverter/ defibrillator
  6. Patient not willing to be treated with oral anticoagulants
  7. Carotid artery stenosis ipsilateral to the current ischemic stroke needing operation or intervention.
  8. History of carotid endarterectomy or percutaneous intervention of cerebral artery within the last 30 days.
  9. Life expectancy \<1 year for reasons other than stroke (e.g. metastatic cancer)
  10. patients under legal supervision or guardianship
  11. psychological/mental or other inabilities to supply required information (e.g. fill out the questionnaire due to dementia, language difficulties,...) or participate in the required tests
  12. participation in other randomised interventional trials
  13. suspected lack of compliance
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
5,227 participants (actual)

Study arms

  • Experimental
    Risk-adapted ECG monitoring for atrial fibrillation

    Intervention Group with high Risk for AF: Continuous Rhythm Monitoring using an implantable cardiac Monitor Intervention group with low risk for AF: 7-day Holter ECG at baseline, after 3 and 12 months and then annually until the end of the study or the first occurrence of atrial Fibrillation

    Other: 7-day Holter ECG · Other: Implantable cardiac monitor

  • Other
    Standard of Care

    Standard of care rhythm monitoring

    Other: Standard of care

Interventions

  • Other7-day Holter ECG

    7-day Holter ECG at baseline and after 3 and 12 months and then annually until the end of the study or the first (in patients with low risk of atrial fibrillation)

  • OtherImplantable cardiac monitor

    Continuous rhythm monitoring using an implantable cardiac monitor

  • OtherStandard of care

    Usual care according to current guidelines (in patients with low and high risk of atrial fibrillation)

06

What researchers measure

Primary outcomes

  1. Primary efficacy endpoint: Time until recurrent ischemic stroke or systemic embolism

    The trial will be event driven. The minimum follow-up in each patient is 24 months, but may be followed for up to 60 months.

    Time frame: from the date of randomization until the date of first documented ischemic stroke or date of first systemic embolism, whichever comes first, assessed up to 60 months

  2. Primary safety endpoint: Time until the first haemorrhagic stroke

    Time until the first haemorrhagic stroke

    Time frame: from the date of randomization until the date of first documented haemorrhagic stroke, assessed up to 60 months

Secondary outcomes

  1. Time until the combination of stroke, myocardial infarction and cardiovascular death

    Time until the combination of stroke, myocardial infarction and cardiovascular death

    Time frame: from the date of randomization until the date of first documented stroke, the date of myocardial infarction and the date of cardiovascular death, whichever comes first, assessed up to 60 months

  2. Time until any stroke

    Time until any stroke

    Time frame: from the date of randomization until the date of first documented any stroke, assessed up to 60 months

  3. Time until new onset of AF

    Time until new onset of Atrial Fibrillation

    Time frame: from the date of randomization until the date of first documented AF, assessed up to 60 months

  4. Time until all cause mortality

    Time until all cause mortality

    Time frame: from the date of randomization until the date of all cause mortality assessed up to 60 months

  5. Time until myocardial infarction

    Time until myocardial infarction

    Time frame: from the date of randomization until the date of all myocardial infarction, assessed up to 60 months

  6. Changes in quality of life (QoL), measured by the stroke impact scale (SIS-16)

    Changes in quality of life (QoL), measured by the stroke impact scale (SIS-16). The SIS-16 ranges from 16 to 80, with higher scores showing better Quality of life.

    Time frame: Mean change from baseline until study end assessed up to 60 months in both study arms

  7. Changes in the EQ-5D five dimensional Quality of Life (QoL)

    Changes in the EQ-5D five dimensional Quality of Life (QoL)

    Time frame: Mean change from baseline until study end assessed up to 60 months in both study arms

  8. Changes in the overall QoL visual analog scale

    Changes in the overall QoL visual analog scale

    Time frame: Mean change from baseline until study end assessed up to 60 months in both study arms, ranging from 0 to 100, with higher values indicating better quality of life

07

Study locations

52 sites
  • ISD München
    München, Bavaria, Germany
  • Klinikum Nürnberg
    Nuremberg, Bavaria 90471, Germany
  • Klinikum Bremen Mitte
    Bremen, Free Hanseatic City of Bremen, Germany
  • University of Leipzig, Clinic for Neurology
    Leipzig, Saxony 04103, Germany
  • Vivantes Klinikum Neukölln Berlin
    Berlin, State of Berlin, Germany
  • Klinikum Altenburger Land
    Altenburg, Germany
  • Klinikum Aschaffenburg-Alzenau
    Aschaffenburg, Germany
  • Universitätsklinikum Augsburg
    Augsburg, Germany
  • Rhön Klinikum Campus Bad Neustadt
    Bad Neustadt an der Saale, Germany
  • Sozialstiftung Bamberg; Klinikum am Bruderwald
    Bamberg, Germany
  • BG Klinikum, Unfall-KH Berlin gGmbH
    Berlin, Germany
  • Vivantes, Humboldt-Klinikum Berlin
    Berlin, Germany
  • Vivantes Klinikum Spandau
    Berlin-Spandau, Germany
  • Evangelisches Klinikum Bethel, Klinik für Neurologie
    Bielefeld, 33611, Germany
  • Universitätsklinikum Bonn
    Bonn, Germany
  • Klinikum Coburg, Medizinische Klinik für Innere Medizin und Kardiologie
    Coburg, 96450, Germany
  • Klinikum Darmstadt
    Darmstadt, Germany
  • Städtisches Klinikum Dresden, Standort Friedrichstadt
    Dresden, Germany
  • Universitätsklinikum Carl Gustav Carus
    Dresden, Germany
  • Universitätsklinikum Erlangen
    Erlangen, Germany
  • University of Essen, Clinic for Neurology
    Essen, 45147, Germany
  • Klinikum Frankfurt Höchst
    Frankfurt, Germany
  • Universitätsklinikum Frankfurt
    Frankfurt, Germany
  • Klinikum Fulda
    Fulda, Germany
  • Universitätsklinikum Gießen und Marburg GmbH
    Giessen, Germany
  • University of Göttingen, Clinic for Neurology
    Göttingen, 37075, Germany
  • Bezirkskrankenhaus Günzburg
    Günzburg, Germany
  • Krankenhaus Martha-Maria Halle-Dölau
    Halle, Germany
  • Albertinenkrankenhaus Hamburg
    Hamburg, Germany
  • Asklepios Klinik Altona Hamburg
    Hamburg, Germany
  • Asklepios Klinik Wandsbek, Hamburg
    Hamburg, Germany
  • Universitätsklinikum Hamburg-Eppendorf
    Hamburg, Germany
  • Medizinische Hochschule Hannover
    Hanover, Germany
  • Universitätsklinikum Heidelberg
    Heidelberg, Germany
  • Klinikum Höxter
    Höxter, Germany
  • Klinikum Ibbenbüren
    Ibbenbueren, Germany
  • Klinikum St. Georg Leipzig
    Leipzig, Germany
  • Städtisches Klinikum Lüneburg gemeinnützige GmbH
    Lüneburg, Germany
  • University of Mainz, Clinic for Neurology
    Mainz, 55131, Germany
  • Carl-von-Basedow Klinikum Merseburg
    Merseburg, Germany
  • Klinikum Minden
    Minden, Germany
  • Ökumenisches Hainich Klinikum Mühlhausen
    Mühlhausen, Germany
  • Universitätsklinikum Münster
    Münster, Germany
  • Klinikum Osnabrück GmbH
    Osnabrück, Germany
  • Klinikum Passau
    Passau, Germany
  • Nordwest-Krankenhaus Sanderbusch, Klinik für Neurologie
    Sande, 26452, Germany
  • Kreisklinikum Siegen
    Siegen, Germany
  • Kliniken Südostbayern AG, Klinikum Traunstein
    Traunstein, Germany
  • Universitätsklinikum Tübingen
    Tübingen, Germany
  • Universitätsklinikum Ulm
    Ulm, Germany
  • Helios Dr. Horst Schmidt-Kliniken Wiesbaden
    Wiesbaden, Germany
  • Universitätsklinikum Würzburg
    Würzburg, Germany
08

References and documents

Publications

  • Uhe T, Wasser K, Weber-Kruger M, Schabitz WR, Kohrmann M, Brachmann J, Laufs U, Dichgans M, Gelbrich G, Petroff D, Prettin C, Michalski D, Kraft A, Etgen T, Schellinger PD, Soda H, Bethke F, Ertl M, Kallmunzer B, Grond M, Althaus K, Hamann GF, Mende M, Wagner M, Groschel S, Uphaus T, Groschel K, Wachter R; Find-AF 2 study group. Intensive heart rhythm monitoring to decrease ischemic stroke and systemic embolism-the Find-AF 2 study-rationale and design. Am Heart J. 2023 Nov;265:66-76. doi: 10.1016/j.ahj.2023.06.016. Epub 2023 Jul 7. PubMed 37422010 ↗
  • Wasser K, Uhe T, Schabitz WR, Kohrmann M, Dichgans M, Brachmann J, Laufs U, Gelbrich G, Petroff D, Prettin C, Michalski D, Pelz J, Kraft A, Etgen T, Soda H, Bethke F, Schellinger PD, Althaus K, Hamann GF, Grond M, Kallmunzer B, Petersen M, Pallesen LP, Ertl M, Zickler P, Poli S, Haeusler KG, Steiner T, Sparenberg P, Kermer P, Kopczak A, Kellert L, Nuckel M, Liman J, Ringleb PA, Mende M, Wagner M, Bochert D, Schnieder M, Amanzada I, Groschel S, Hahn M, Uphaus T, Groschel K, Wachter R; Find-AF 2 study group. Baseline characteristics of patients with acute ischaemic stroke included in the randomised controlled Find-AF 2 trial. Neurol Res Pract. 2025 Jun 26;7(1):45. doi: 10.1186/s42466-025-00399-8. PubMed 40571918 ↗

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Sap, Icf

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 28, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04371055
Lead sponsor
University of Leipzig
Collaborators
Johannes Gutenberg University Mainz
Responsible party
Rolf Wachter (Professor for Clinical and Interventional Cardiology, University of Leipzig) — Principal investigator
First posted
May 1, 2020
Start date
Jul 7, 2020
Primary completion
Jun 30, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Aug 28, 2026

Study contacts

Rolf Wachter, Prof. Dr.
study chair · University of Leipzig, Clinic and Policlinis for Cardiology
Klaus Gröschel, Prof. Dr.
principal investigator · University of Mainz, Clinic and Policlinis for Neurology

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion