AzTrials
AzTrials

Atrial FibrillationPERCARDNCT06847100

Artificial Intelligence Models to Predict Clinically Relevant Cardiovascular Outcomes

An observational study of Atrial Fibrillation, run by Centro Cardiologico Monzino at 4 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Atrial fibrillation (AF) is a frequent and clinically relevant problem among the events that may occur during the hospitalization period in patients with cardiovascular disease. AF, indeed, is a determinant or aggravating condition of serious adverse events, such as myocardial infarction, heart failure, and… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Atrial Fibrillation
What is being tested?
Blood withdrawal
How many people
273 participants
Where
4 sitesin 3 countries
Study dates
6 Feb 2023to 30 Jun 2025
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: 500 patients admitted to the Coronary Intensive Care Unit of the CCM for AMI (STEMI or NSTEMI)

Who may be able to join

  • age ≥18 years
  • patient admitted to the Coronary Intensive Care Unit of the CCM for AMI (STEMI or NSTEMI)
  • signature of informed consent to use clinical and instrumental data and, optionally, genetic data specific to the purpose of this study (gene polymorphisms presumably related to the development of AF)

Who cannot join

  • any chronic or acute condition that prevents the patient from consciously consenting to the use of his or her personal, clinical, and instrumental data
  • patients already in acute or permanent AF at the time of admission

Trial locations and contacts

4 sites in 3 countries.

4 sites in 3 countries

Italy2 sites
  • Politecnico di Milano

    Milan, Milano, 20133

  • Centro Cardiologico Monzino

    Milan, Milano, 20138

Other trials in Italy

Finland1 site
  • Tampere University

    Tampere, Pirkanmaa, 33100

Other trials in Finland

Germany1 site
  • Protestant University of Apllied Sciences Ludwigsburg

    Ludwigsburg, Ludwigsburg, 71638

Other trials in Germany

About this study

Official title: Development of Artificial Intelligence Models to Predict Intrahospital Atrial Fibrillation and Long-term Coronary Event Recurrence in High-risk Patients: PerCard Study

Atrial fibrillation (AF) is a frequent and clinically relevant problem among the events that may occur during the hospitalization period in patients with cardiovascular disease. AF, indeed, is a determinant or aggravating condition of serious adverse events, such as myocardial infarction, heart failure, and thromboembolic stroke. The occurrence of AF in hospitalized patients, such as those admitted for coronary intervention, results in prolonged length of hospitalization, increased likelihood of discharge on anticoagulants, and increased 30-day risk of bleeding. It is noteworthy that while the incidence of AF in the general population is about 1-2 cases per 1000 people per year, this is much higher in patients hospitalized for acute myocardial infarction (AMI) (about 10% over the hospitalization period) or in patients undergoing coronary artery bypass grafting (CABG) (about 25% over the hospitalization period). Thus, identifying patients at high risk of AF during the hospitalization period could allow experimental testing of the efficacy and safety of preventive interventions (e.g., tailored anesthetic or surgical approaches, drug-prevention, etc.). It can be hypothesized that the clinical and nonclinical variables useful in estimating the risk of AF will change depending on the type of patients and that the identification and integration of these variables will require more complex predictive analysis systems than the regression models classically used to develop risk scores.

On the other hand, the risk of recurrence of coronary events throughout the first years after CABG remains high (about 20% at 5 years) despite effective revascularization and early secondary prevention.Although some scores have been developed for estimating the risk of coronary event recurrence in secondary prevention using multivariate regression models, these algorithms consider a limited number of predictors, do not take into account possible interactions between different factors, and their actual predictive ability is not reported in the literature.

With advances in Artificial Intelligence (AI) technology together with the rapid development of digital clinical datasets, machine learning has the potential to analyze substantial amounts of data and recognize patterns to predict AF onset and recurrence of coronary events within a defined time horizon (e.g., in-hospital event) in selected populations in a way that improves the predictive ability of conventional methods.

Read the detailed description

PerCard is a retrospective and prospective observational study. The study aims to develop and validate models for prediction of intrahospital AF and recurrence of coronary events in a long-term follow-up using Artificial Intelligence.

The development and internal validation of predictive models of AF involve two retrospective cohorts:

  • Cohort A: 1258 patients underwent CABG at Centro Cardiologico Monzino (CCM) between 2002 and 2016
  • Cohort B: 2445 patients admitted for AMI STEMI or NSTEMI to CCM between 2010 and 2018

The development and internal validation of predictive models of coronary event recurrence in long-term follow-up involve a third retrospective cohort:

-Cohort C: 1248 patients underwent CABG at CCM between 2002 and 2014 .

External validation of the predictive models of in-hospital AF involves a cohort of patients admitted with AMI STEMI or NSTEMI, who will be prospectively enrolled at Coronary Intensive Care Unit of Centro Cardiologico Monzino.

In the different prediction models, clinical and instrumental variables specific to patients with AMI (e.g., infarcted area), variables that are common to patients with any form of coronary revascularization (e.g., how many and which coronary vessels have been revascularized), or variables that are common to patients and individuals without established coronary artery disease (e.g., age, sex, history of hypertension, particular gene polymorphisms related to AF, signals from the ECG, etc.) will be included, where available.

In addition, the contribution of 16 gene polymorphisms associated with predisposition to intrahospital onset of AF has been previously evaluated in cohort A and will be evaluated and compared in the prospective cohort at the Immunology and Functional Genomics Research Unit of Centro Cardiologico Monzino.

Being tested
Blood withdrawal
Keywords
Acute Myocardial Infarction (STEMI, NSTEMI), Artificial Intelligence, Genetics
Medical subject headings
Atrial Fibrillation, ST Elevation Myocardial Infarction, Non-ST Elevated Myocardial Infarction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Blood withdrawalDiagnostic test

    Optional collection of 5 mL of blood to assess the contribution of 16 gene polymorphisms AF-associated

Study groups in NCT06847100
Study groupRoleWhat they receive
Prospective cohortPatients who will be admitted for AMI (STEMI or NSTEMI) at Intensive Care Unit of Centro Cardiologico Monzino
Receives: Diagnostic Test: Blood withdrawal

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Validation of the intrahospital AF prediction model in the prospective cohort

    External validation ("narrow external validation") of the intrahospital AF prediction model in a cohort of patients who will be admitted for AMI (STEMI or NSTEMI) at the CCM.

    Measured: 1 year

Secondary outcomes (1)
  1. Genetic evaluation of polymorphisms associated with Atrial Fibrillation

    Evaluation and comparison of the contribution of 16 AF predisposition-associated gene polymorphisms on the intrahospital onset of arrhythmia between patients who underwent CABG and patients with AMI.

    Measured: 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Feb 2025
  2. Study start6 Feb 2023
  3. Primary completion30 Jun 2025
  4. Study completion30 Jun 2025

Resources

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
Other
Enrolment
273 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06847100
Sponsor's protocol ID
CCM1860
Acronym
PERCARD
Status last verified
Aug 2025
First submitted
21 Feb 2025
Last updated
26 Aug 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Amar D, Shi W, Hogue CW Jr, Zhang H, Passman RS, Thomas B, Bach PB, Damiano R, Thaler HT. Clinical prediction rule for atrial fibrillation after coronary artery bypass grafting. J Am Coll Cardiol. 2004 Sep 15;44(6):1248-53. doi: 10.1016/j.jacc.2004.05.078.

    PubMed 15364327
  • Louka AM, Tsagkaris C, Stoica A. Clinical risk scores for the prediction of incident atrial fibrillation: a modernized review. Rom J Intern Med. 2021 Nov 20;59(4):321-327. doi: 10.2478/rjim-2021-0018. Print 2021 Dec 1.

    PubMed 33951355
  • Mrdovic I, Savic L, Krljanac G, Perunicic J, Asanin M, Lasica R, Antonijevic N, Kocev N, Marinkovic J, Vasiljevic Z, Ostojic M. Incidence, predictors, and 30-day outcomes of new-onset atrial fibrillation after primary percutaneous coronary intervention: insight into the RISK-PCI trial. Coron Artery Dis. 2012 Jan;23(1):1-8. doi: 10.1097/MCA.0b013e32834df552.

    PubMed 22107800
  • Beukema RJ, Elvan A, Ottervanger JP, de Boer MJ, Hoorntje JC, Suryapranata H, Dambrink JH, Gosselink AT, van 't Hof AW; Zwolle Myocardial Infarction Study Group. Atrial fibrillation after but not before primary angioplasty for ST-segment elevation myocardial infarction of prognostic importance. Neth Heart J. 2012 Apr;20(4):155-60. doi: 10.1007/s12471-012-0242-5.

    PubMed 22359247
  • Kosmidou I, Chen S, Kappetein AP, Serruys PW, Gersh BJ, Puskas JD, Kandzari DE, Taggart DP, Morice MC, Buszman PE, Bochenek A, Schampaert E, Page P, Sabik JF 3rd, McAndrew T, Redfors B, Ben-Yehuda O, Stone GW. New-Onset Atrial Fibrillation After PCI or CABG for Left Main Disease: The EXCEL Trial. J Am Coll Cardiol. 2018 Feb 20;71(7):739-748. doi: 10.1016/j.jacc.2017.12.012.

    PubMed 29447735
  • Tseng AS, Noseworthy PA. Prediction of Atrial Fibrillation Using Machine Learning: A Review. Front Physiol. 2021 Oct 28;12:752317. doi: 10.3389/fphys.2021.752317. eCollection 2021.

    PubMed 34777014
  • van Smeden M, Heinze G, Van Calster B, Asselbergs FW, Vardas PE, Bruining N, de Jaegere P, Moore JH, Denaxas S, Boulesteix AL, Moons KGM. Critical appraisal of artificial intelligence-based prediction models for cardiovascular disease. Eur Heart J. 2022 Aug 14;43(31):2921-2930. doi: 10.1093/eurheartj/ehac238.

    PubMed 35639667
  • Huang D, Cheng YY, Wong YT, Yung SY, Chan KW, Lam CC, Hai J, Lau CP, Wong KL, Feng YQ, Tan N, Chen JY, Wu MX, Su X, Yan H, Song D, Tse HF, Chan PH, Siu CW, Tam CC. TIMI risk score for secondary prevention of recurrent cardiovascular events in a real-world cohort of post-non-ST-elevation myocardial infarction patients. Postgrad Med J. 2019 Jul;95(1125):372-377. doi: 10.1136/postgradmedj-2019-136404. Epub 2019 May 23.

    PubMed 31123174
  • Dorresteijn JA, Visseren FL, Wassink AM, Gondrie MJ, Steyerberg EW, Ridker PM, Cook NR, van der Graaf Y; SMART Study Group. Development and validation of a prediction rule for recurrent vascular events based on a cohort study of patients with arterial disease: the SMART risk score. Heart. 2013 Jun;99(12):866-72. doi: 10.1136/heartjnl-2013-303640. Epub 2013 Apr 10.

    PubMed 23574971
  • Santos ASAC, Rodrigues APS, Rosa LPS, Sarrafzadegan N, Silveira EA. Cardiometabolic risk factors and Framingham Risk Score in severely obese patients: Baseline data from DieTBra trial. Nutr Metab Cardiovasc Dis. 2020 Mar 9;30(3):474-482. doi: 10.1016/j.numecd.2019.10.010. Epub 2019 Nov 5.

    PubMed 31791637
  • Siontis KC, Yao X, Pirruccello JP, Philippakis AA, Noseworthy PA. How Will Machine Learning Inform the Clinical Care of Atrial Fibrillation? Circ Res. 2020 Jun 19;127(1):155-169. doi: 10.1161/CIRCRESAHA.120.316401. Epub 2020 Jun 18.

    PubMed 32833571
  • Moons KG, Altman DG, Reitsma JB, Ioannidis JP, Macaskill P, Steyerberg EW, Vickers AJ, Ransohoff DF, Collins GS. Transparent Reporting of a multivariable prediction model for Individual Prognosis or Diagnosis (TRIPOD): explanation and elaboration. Ann Intern Med. 2015 Jan 6;162(1):W1-73. doi: 10.7326/M14-0698.

    PubMed 25560730
  • Cosentino N, Ballarotto M, Campodonico J, Milazzo V, Bonomi A, Genovesi S, Moltrasio M, De Metrio M, Rubino M, Veglia F, Assanelli E, Marana I, Grazi M, Lauri G, Bartorelli AL, Marenzi G. Impact of Glomerular Filtration Rate on the Incidence and Prognosis of New-Onset Atrial Fibrillation in Acute Myocardial Infarction. J Clin Med. 2020 May 9;9(5):1396. doi: 10.3390/jcm9051396.

    PubMed 32397347
  • Werba JP, Bonomi A, Giroli M, Amato M, Vigo L, Agrifoglio M, Alamanni F, Cavallotti L, Kassem S, Naliato M, Parolari A, Penza E, Polvani G, Pompilio G, Porqueddu M, Roberto M, Salis S, Zanobini M, Amato M, Baldassarre D, Veglia F, Tremoli E. Long-term secondary cardiovascular prevention programme in patients subjected to coronary artery bypass surgery. Eur J Prev Cardiol. 2022 May 25;29(7):997-1004. doi: 10.1093/eurjpc/zwaa060.

    PubMed 33624003

Questions about this trial

What is this clinical trial studying?

An observational study of Atrial Fibrillation, run by Centro Cardiologico Monzino at 4 sites in 3 countries.

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 3 inclusion and 2 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 26 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites in Italy, Finland, 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?

Validation of the intrahospital AF prediction model in the prospective cohort (time frame: 1 year). 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 NCT06847100, which also lists 14 linked publications.

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 26 Aug 2025; AzTrials last refreshed its copy on 29 Oct 2026.

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