Brain Ischemia With Non-valvular Atrial FibrillationPRODASTNCT02507856
Prospective Record Of the Use of Dabigatran in Patients With Acute Stroke or TIA
An observational study of Brain Ischemia With Non-valvular Atrial Fibrillation and Transient Ischemic Attack With Non-valvular Atrial Fibrillation, run by University Hospital, Essen at 90 sites in Germany.
Trial summary
The multi-center, prospective PRODAST study is investigating patients with non-valvular atrial fibrillation (AF) who experienced an ischemic stroke or a transient ischemic attack (TIA) recently (≤ 1 week) both with and without previous oral anticoagulation. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Brain Ischemia With Non-valvular Atrial Fibrillation, Transient Ischemic Attack With Non-valvular Atrial Fibrillation
- How many people
- 10,044 participants
- Where
- 90 sitesGermany
- Study dates
- Jul 2015to Apr 2022
- How long will I take part?
- 3 Months
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients with recent (≤ 1 week from index) ischemic stroke or TIA and with confirmed non-valvular AF (documented by 12 lead ECG, ECG rhythm strip, pacemaker/ICD electrocardiogram, or Holter ECG) will be included.
Who may be able to join
- Age ≥18 years at enrollment
- Male or female patient willing and able to provide written informed consent for data transmission. For patients who are not legally competent to sign this informed consent for data transmission exceptions/special cases are described in the protocol.
- Patient with ischemic stroke or TIA within the last 7 days.
- Patient diagnosed with non-valvular AF. Documentation of AF by 12 lead ECG, ECG rhythm strip, monitor print-out, pacemaker/ICD electrocardiogram, Holter ECG (duration of AF episode at least 30 seconds) or written physician´s diagnosis prior to index event needed for all enrolled patients.
Who cannot join
- Presence of any mechanical heart valve, or valve disease that is expected to require valve replacement intervention (surgical or non-surgical) during the next 3 months.
- Current participation in any randomized clinical trial of an experimental drug or device.
- Women of childbearing age without anamnestic exclusion of pregnancy or not using an effective contraception or nursing mothers.
Trial locations and contacts
90 sites in 1 country.
90 sites in 1 country
Germany90 sites
Klinikum Altenburger Land GmbH
Altenburg, 04600
Kreisklinik Altötting
Altötting, 84503
Schön Klinik Bad Aibling
Bad Aibling, 83043
Hochtaunus-Kliniken gGmbH, Krankenhaus Bad Homburg
Bad Homburg, 61352
Neurologische Klinik Bad Neustadt a. d. Saale
Bad Neustadt an der Saale, 97616
Klinikum Bayreuth
Bayreuth, 95445
Vivantes Auguste-Viktoria Klinikum
Berlin, 12157
Vivantes Klinikum Neukölln
Berlin, 12351
Unfallkrankenhaus Berlin
Berlin, 12683
Vivantes Humboldt Klinikum GmbH
Berlin, 13509
Evangelisches Krankenhaus Bielefeld gGmbH
Bielefeld, 33611
Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil GmbH
Bochum, 44789
St. Josef Hospital Ruhr University Bochum
Bochum, 44791
Universitätsklinikum Bonn
Bonn, 53127
Knappschaftskrankenhaus Bottrop GmbH
Bottrop, 46242
Klinikum Bremerhaven-Reinkenheide gGmbH
Bremerhaven, 27574
Krankenhaus Buchholz und Winsen gGmbH
Buchholz, 21244
Evangelisches Krankenhaus Castrop-Rauxel
Castrop-Rauxel, 44577
Allgemeines Krankenhaus Celle
Celle, 29223
REGIOMED-Kliniken - Klinikum Coburg
Coburg, 96450
Universitätsklinikum Köln
Cologne, 50924
Krankenhaus St. Elisabeth gGmbH
Damme, 49401
Klinikum Dortmund gGmbH
Dortmund, 44137
Städtisches Klinikum Dresden-Neustadt
Dresden, 01129
Universitätsklinikum Carl Gustav Carus Dresden
Dresden, 01304
Evangelisches Klinikum Niederrhein gGmbH
Duisburg, 47169
Klinikum Emden, Hans-Susemihl Krankenhaus
Emden, 26721
Alfried Krupp Krankenhaus Rüttenscheid
Essen, 45131
University Hospital Essen, Department of Neurology
Essen, 45147
Klinikum Frankfurt Höchst GmbH
Frankfurt, 65929
Klinikum der Johann Wolfgang Goethe-Universität
Frankfurt am Main, 60528
Universitätsklinikum Freiburg
Freiburg im Breisgau, 79106
Klinikum Fulda gAG
Fulda, 36043
Evangelische Kliniken Gelsenkirchen gGmbH
Gelsenkirchen, 45879
SRH Wald-Klinikum Gera GmbH
Gera, 07548
Universitätsmedizin Göttingen, Georg-August-Universität
Göttingen, 37075
Klinikum Oberberg - Kreiskrankenhaus Gummersbach GmbH
Gummersbach, 51643
Krankenhaus Martha-Maria Halle-Dölau
Halle, 06056
UKH Universitätsklinikum Halle (Saale)
Halle, 06120
Universitätsklinikum Hamburg-Eppendorf
Hamburg, 20246
Asklepios Klinik Wandsbek
Hamburg, 22043
Asklepios Klinik Barmbek
Hamburg, 22291
Medizinische Hochschule Hannover
Hanover, 30625
Evangelisches Krankenhaus Hattingen gGmbH
Hattingen, 45525
Krankenhaus Agatharied GmbH
Hausham, 83734
Universitätsklinikum Heidelberg
Heidelberg, 69120
Evangelisches Krankenhaus Herne
Herne, 44623
BDH-Klinik Hessisch-Oldendorf GmbH
Hessisch Oldendorf, 31840
Klinikum Ibbenbüren GmbH
Ibbenbueren, 49477
Klinikum Idar-Oberstein GmbH
Idar-Oberstein, 55743
SHR Klinikum Karlsbad-Langensteinbach GmbH
Karlsbad, 76307
Universitätsklinikum Schleswig-Holstein, Campus Kiel
Kiel, 24105
Alexianer Krefeld GmbH, Krankenhaus Maria-Hilf
Krefeld, 47805
Universitätsklinikum Leipzig AöR
Leipzig, 04103
Klinikum Main-Spessart, Krankenhaus Lohr
Lohr, 97816
Universitätsklinikum Schleswig-Holstein Campus Lübeck
Lübeck, 23538
Sana Kliniken Luebeck GmbH
Lübeck, 23560
Klinikum der Stadt Ludwigshafen gGmbH
Ludwigshafen, 67063
Städtisches Klinikum Lüneburg gGmbH
Lüneburg, 21339
St.-Marien-Hospital GmbH
Lünen, 44534
Universitätsklinikum Magdeburg
Magdeburg, 39120
Universitätsmedizin der Johannes Gutenberg-Universität Mainz
Mainz, 55131
Universitätsmedizin Mannheim
Mannheim, 68167
Klinikum Merzig
Merzig, 66663
Mühlenkreiskliniken AöR, Johannes Wesling Klinikum Minden
Minden, 32492
St. Josef Krankenhaus GmbH Moers
Moers, 47441
Kliniken Maria Hilf GmbH
Mönchengladbach, 41063
UKM Universitätsklinikum Münster
Münster, 48149
Dietrich-Bonhoeffer-Klinikum Neubrandenburg
Neubrandenburg, 17036
Klinikum Osnabrück GmbH
Osnabrück, 49076
Klinikum Vest GmbH, Behandlungszentrum Knappschaftskrankenhaus Recklinghausen
Recklinghausen, 45657
Imland Klinik Rendsburg
Rendsburg, 24768
Klinikum Saarbrücken gGmbH
Saarbrücken, 66119
Nordwest-Krankenhaus Sanderbusch
Sande, 26452
Diakonie-Klinikum Schwäbisch Hall gGmbH
Schwäbisch Hall, 74523
ASKLEPIOS Kliniken Schildautal Seesen
Seesen, 38723
Kreisklinikum Siegen
Siegen, 57076
Medinos Kliniken Sonneberg
Sonneberg, 96515
Klinikum Stuttgart - Katharinenhospital
Stuttgart, 70174
SRH Zentralklinikum Suhl GmbH
Suhl, 98527
Asklepios Fachklinikum Teupitz
Teupitz, 15755
Universitätsklinikum Tübingen
Tübingen, 72076
RKU - Universitäts- und Rehabilitationskliniken Ulm gGmbH
Ulm, 89081
Ammerland Klinik GmbH
Westerstede, 26655
HELIOS Dr. Horst Schmidt Kliniken Wiesbaden
Wiesbaden, 65199
Rems-Murr-Klinikum Winnenden
Winnenden, 71364
Sana HANSE-Klinikum Wismar
Wismar, 23966
Klinikum Wolfsburg
Wolfsburg, 38440
Rhein-Maas-Klinikum GmbH
Würselen, 52146
Universitätsklinikum Würzburg AöR
Würzburg, 97080
About this study
The multi-center, prospective PRODAST study is investigating patients with non-valvular atrial fibrillation (AF) who experienced an ischemic stroke or a transient ischemic attack (TIA) recently (≤ 1 week) both with and without previous oral anticoagulation. It consists of a baseline visit and a 3 months central follow-up for patients who were discharged with dabigatran, vitamin K-antagonists, antiplatelets only, or no oral antithrombotic treatment at all. Thus, data on the use of dabigatran and vitamin K-antagonists in routine clinical practice will be collected to describe how dabigatran is prescribed and used in the population of AF patients with recent cerebrovascular events and how these factors influence important outcome and safety events. The utilization of dabigatran will be assessed with regards to treatment persistence, compliance, proportion of patients discontinuing treatment and reason for discontinuation as well clinical endpoints such as major bleeding, stroke or systemic embolism. Due to the fact that patients will be treated according to local medical practice it is possible that medication will be changed during the observation period. In the follow-up, data from the first as well as from the second prescribed medication will be used in the study. To explore a long-term effect of anticoagulation, survival up to one year will be assessed.
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| investigational group | early/late dabigatran | |
| control group | vitamin k antagonist (vka) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Major bleeding event rate
Major bleeding event rate within 3 months following the index event (= stroke or TIA)
Measured: from study inclusion up to 3 months
Secondary outcomes (15)
Complications during hospitalisation
Complications during hospitalisation before study inclusion (= signature of informed consent)
Measured: from index event up to 1 week
Number of participants with newly occurring or recurrent strokes
Stroke (hemorrhagic, ischemic or uncertain classification)
Measured: from study inclusion up to 3 months
Severity of stroke assessed by modified Rankin Scale (mRS)
Measured: from study inclusion up to 3 months
Number of participants with newly occurring or recurrent TIA
transient ischemic attack
Measured: from study inclusion up to 3 months
Number of participants with systemic embolism
Measured: from study inclusion up to 3 months
Number of participants with pulmonary embolism
Measured: from study inclusion up to 3 months
Number of participants with myocardial infarction
Measured: from study inclusion up to 3 months
Life-threatening bleeding events
Measured: from study inclusion up to 3 months
Any cause of death
any cause of death (non-vascular, vascular or unknown cause)
Measured: from study inclusion up to 3 months
Point in time for withdrawal/change of medication
Measured: from study inclusion up to 3 months
Reason for withdrawal/change of medication
Measured: from study inclusion up to 3 months
Patient compliance
Measured: from study inclusion up to 3 months
Treatment persistence
Measured: from study inclusion up to 3 months
(Serious) Adverse Events (AE/SAE)
Measured: from study inclusion up to 3 months
Survival one year after study inclusion
any cause of death (non-vascular, vascular or unknown cause)
Measured: up to 1 year from study inclusion
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Jul 2015 (estimated)
- Study startJul 2015
- Primary completionDec 2021
- Study completionApr 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Brain Ischemia With Non-valvular Atrial FibrillationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 10,044 participants (actual)
- Target duration
- 3 Months
Sponsor and investigators
- Lead sponsor
- University Hospital, Essen
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Prof. Dr. Hans Diener, University Hospital, Essen
- Investigators
- Hans Diener, Prof. Dr., Study director, University Hospital, Essen
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02507856
- Sponsor's protocol ID
- PRODAST
- Acronym
- PRODAST
- Status last verified
- May 2022
- First submitted
- 16 Jul 2015
- Last updated
- 10 May 2022
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Grosse GM, Husing A, Stang A, Kuklik N, Brinkmann M, Grond M, Rollnik JD, Marquardt L, Kraft A, Schlemm E, Eggers C, Eschenfelder CC, Weimar C, Diener HC. Prior Anticoagulation and Risk of Hemorrhagic Transformation in Acute Stroke: A Post Hoc Analysis of the PRODAST Study. J Am Heart Assoc. 2025 Feb 4;14(3):e037014. doi: 10.1161/JAHA.124.037014. Epub 2025 Feb 3.
PubMed 39895532
Study at a glance
From the registry record, last updated by the sponsor on 10 May 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prospective Record Of the Use of Dabigatran in Patients With Acute Stroke or TIA
- ClinicalTrials.gov ID
- NCT02507856
- Acronym / sponsor ID
- PRODAST / PRODAST
- Conditions
- Brain Ischemia With Non-valvular Atrial Fibrillation, Transient Ischemic Attack With Non-valvular Atrial Fibrillation
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 10,044 participants (actual)
- Lead sponsor
- University Hospital, EssenUniversity, hospital or other
- Study start
- Jul 2015 (actual)
- Primary completion
- Dec 2021 (actual)
- Study completion
- Apr 2022 (actual)
- First posted
- 24 Jul 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The multi-center, prospective PRODAST study is investigating patients with non-valvular atrial fibrillation (AF) who experienced an ischemic stroke or a transient ischemic attack (TIA) recently (≤ 1 week) both with and without previous oral anticoagulation. It consists of a baseline visit and a 3 months central follow-up for patients who were discharged with dabigatran, vitamin K-antagonists, antiplatelets only, or no oral antithrombotic treatment at all. Thus, data on the use of dabigatran and vitamin K-antagonists in routine clinical practice will be collected to describe how dabigatran is prescribed and used in the population of AF patients with recent cerebrovascular events and how these factors influence important outcome and safety events. The utilization of dabigatran will be assessed with regards to treatment persistence, compliance, proportion of patients discontinuing treatment and reason for discontinuation as well clinical endpoints such as major bleeding, stroke or systemic embolism. Due to the fact that patients will be treated according to local medical practice it is possible that medication will be changed during the observation period. In the follow-up, data from the first as well as from the second prescribed medication will be used in the study. To explore a long-term effect of anticoagulation, survival up to one year will be assessed.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 3 Months
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| investigational group | – | –early/late dabigatran |
| control group | – | –vitamin k antagonist (vka) |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients with recent (≤ 1 week from index) ischemic stroke or TIA and with confirmed non-valvular AF (documented by 12 lead ECG, ECG rhythm strip, pacemaker/ICD electrocardiogram, or Holter ECG) will be included.
Key inclusion criteria (4 listed)
- Age ≥18 years at enrollment
- Male or female patient willing and able to provide written informed consent for data transmission. For patients who are not legally competent to sign this informed consent for data transmission exceptions/special cases are described in the protocol.
- Patient with ischemic stroke or TIA within the last 7 days.
- Patient diagnosed with non-valvular AF. Documentation of AF by 12 lead ECG, ECG rhythm strip, monitor print-out, pacemaker/ICD electrocardiogram, Holter ECG (duration of AF episode at least 30 seconds) or written physician´s diagnosis prior to index event needed for all enrolled patients.
Key exclusion criteria (3 listed)
- Presence of any mechanical heart valve, or valve disease that is expected to require valve replacement intervention (surgical or non-surgical) during the next 3 months.
- Current participation in any randomized clinical trial of an experimental drug or device.
- Women of childbearing age without anamnestic exclusion of pregnancy or not using an effective contraception or nursing mothers.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Major bleeding event rate
Time frame: from study inclusion up to 3 months
Major bleeding event rate within 3 months following the index event (= stroke or TIA)
15 secondary outcomes
Complications during hospitalisation
Time frame: from index event up to 1 week
Number of participants with newly occurring or recurrent strokes
Time frame: from study inclusion up to 3 months
Severity of stroke assessed by modified Rankin Scale (mRS)
Time frame: from study inclusion up to 3 months
Number of participants with newly occurring or recurrent TIA
Time frame: from study inclusion up to 3 months
Number of participants with systemic embolism
Time frame: from study inclusion up to 3 months
Number of participants with pulmonary embolism
Time frame: from study inclusion up to 3 months
Number of participants with myocardial infarction
Time frame: from study inclusion up to 3 months
Life-threatening bleeding events
Time frame: from study inclusion up to 3 months
Any cause of death
Time frame: from study inclusion up to 3 months
Point in time for withdrawal/change of medication
Time frame: from study inclusion up to 3 months
Reason for withdrawal/change of medication
Time frame: from study inclusion up to 3 months
Patient compliance
Time frame: from study inclusion up to 3 months
Treatment persistence
Time frame: from study inclusion up to 3 months
(Serious) Adverse Events (AE/SAE)
Time frame: from study inclusion up to 3 months
Survival one year after study inclusion
Time frame: up to 1 year from study inclusion
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 May 2022.
- Derived from this study: PubMed 39895532Grosse GM, Husing A, Stang A, Kuklik N, Brinkmann M, Grond M, Rollnik JD, Marquardt L, Kraft A, Schlemm E, Eggers C, Eschenfelder CC, Weimar C, Diener HC. Prior Anticoagulation and Risk of Hemorrhagic Transformation in Acute Stroke: A Post Hoc Analysis of the PRODAST Study. J Am Heart Assoc. 2025 Feb 4;14(3):e037014. doi: 10.1161/JAHA.124.037014. Epub 2025 Feb 3.
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RecruitingObservational study
Left Atrial Appendage Closure as Secondary Prevention of Atrial Fibrillation-related Embolic Events
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Hans Diener, Prof. Dr. study director
University Hospital, Essen
90 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Brain Ischemia With Non-valvular Atrial Fibrillation and Transient Ischemic Attack With Non-valvular Atrial Fibrillation, run by University Hospital, Essen at 90 sites in Germany.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 10 May 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 90 sites in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Major bleeding event rate (time frame: from study inclusion up to 3 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02507856, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 May 2022.