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Spontaneous Coronary Artery Dissection - AntipLatelet Therapy Intensity in Guided coNservative Management (SCAD-ALIGN) Trial (SCAD-ALIGN)

28 giugno 2026 aggiornato da: Universitätsklinikum Hamburg-Eppendorf

Spontaneous Coronary Artery Dissection - Antiplatelet Therapy Intensity in Guided Conservative Management (SCAD-ALIGN) Trial

Spontaneous coronary artery dissection (SCAD) is a rare cause of acute coronary syndrome in which blood flow to the heart muscle is reduced or interrupted. It predominantly affects women between 30 and 55 years of age and typically occurs in the absence of atherosclerosis. For many years, SCAD remained underdiagnosed and has only recently been more systematically recognised. The SCAD-ALIGN trial will be the first randomised study to systematically compare two antiplatelet treatment strategies in patients with SCAD.

SCAD is usually not associated with significant atherosclerosis or the classic vessel occlusion caused by a blood clot. Instead, bleeding occurs within the wall of a coronary artery, causing the vessel layers to separate and thereby impairing or completely obstructing blood flow. Patients develop symptoms of acute myocardial infarction, such as chest pain, shortness of breath, or nausea. A characteristic feature is that these symptoms often occur in individuals without a prior history or risk of heart disease.

Platelets play a crucial role in blood clotting but can also accumulate inside blood vessels and further impair flow. Antiplatelet medications are used to prevent this. In current clinical practice, SCAD patients are often treated according to general guidelines for acute coronary syndrome, which typically include two different antiplatelet therapies, a strategy developed and tested in older patients with proven atherosclerosis.

The SCAD-ALIGN trial is based on a fundamental difference between SCAD and classic heart attacks. In typical heart attacks, a blood clot usually blocks a vessel, and after the implantation of a vascular support device ("stent"), intensive antiplatelet therapy is used to prevent further clot formation. In SCAD, however, the underlying problem is a tear or bleeding within the vessel wall. In this situation, intensive antiplatelet therapy could delay the resolution of the bleeding or even worsen it, thereby adversely affecting the course of the disease. The study will therefore investigate whether a less intensive treatment strategy may be more beneficial in these patients.

The SCAD-ALIGN trial compares two treatment strategies: moderate antiplatelet therapy with a single medication for three months versus more intensive therapy with two agents for three months, followed by nine months of treatment with a single medication. The primary endpoint is a composite of recurrent myocardial ischemia, recurrent SCAD, myocardial infarction, the need for revascularization, and death.

The SCAD-ALIGN trial is part of the Multinational Clinical Trials Initiative of the Global Cardiovascular Research Funders Forum (GCRFF). The study is designed as an international, multicentre, randomised, open-label clinical trial. Because SCAD is a rare condition, close collaboration across national borders is essential. The results are expected to make an important contribution to the development of evidence-based treatment recommendations for SCAD, improve care and quality of life for patients worldwide.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Spontaneous Coronary Artery Dissection (SCAD) is an important cause of acute coronary syndromes (ACS), predominantly in younger women. Evidence to guide optimal antiplatelet therapy is limited. Although dual antiplatelet therapy (DAPT) is commonly prescribed, observational studies have linked DAPT to higher rates of adverse cardiovascular events in conservatively managed SCAD. The SCAD-ALIGN trial is an international, prospective, randomized, open-label, group-sequential adaptative, blinded endpoint-adjudicated with two-parallel groups, multicenter trial comparing an intensive APT strategy versus a moderate APT strategy in patients with ACS due to SCAD who are treated conservatively, i.e., without revascularization. The SCAD-ALIGN study will define the benefit-risk balance of these strategies, inform international guideline committees, and clarify optimal treatment strategies. To demonstrate the superiority of a moderate intensity APT strategy compared to an intensive treatment regimen in patients presenting with an ACS caused by SCAD with planned conservative management with regard to major adverse cardiovascular events (MACE), a composite endpoint consisting of all-cause mortali-ty, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke, or transient ischemic attack 12 months after randomization was chosen.

Tipo di studio

Interventistico

Iscrizione (Stimato)

3518

Fase

  • Fase 4

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z 1M9
        • Division of Cardiology, Vancouver General Hospital, University of British Columbia
        • Contatto:
    • Free and Hanseatic City of Hamburg
      • Hamburg, Free and Hanseatic City of Hamburg, Germania, 20246
        • University Medical Center Hamburg-Eppendorf
        • Contatto:
      • Nieuwegein, Olanda, 3435 CM
        • Division of Cardiology, St. Antonius Hospital
        • Contatto:
      • Leicester, Regno Unito, LE1 5WW
        • University Hospitals of Leicester NHS Trust
        • Contatto:
      • Linköping, Svezia, SE-581 83
        • Department of Cardiology and Department of Medical and Health Sciences, Linköping University
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  1. Age ≥18 years.
  2. Presentation with an Acute Coronary Syndrome.
  3. Suspected SCAD on coronary angiography (determined by the local investigator).
  4. Planned conservative treatment of SCAD.
  5. Intensive as well as moderate treatment of SCAD is possible.
  6. Ability to understand the patient information and to personally sign and date the informed consent to participate in the study, before completing any study-related procedures.
  7. The patient is cooperative and available for the entire study.
  8. Written and informed consent.
  9. For women of childbearing potential: Patient is willing to use adequate contraceptive precautions during the study (until 12 Month FU)

Exclusion Criteria:

  1. Hypersensitivity to the study medication.
  2. Any indication for oral anticoagulation.
  3. Any indication for APT (including thienopyridines, non-thienopyridines, ASA and other anti-thrombotic agents) other than SCAD.
  4. Cardiogenic shock at the time of screening.
  5. Coronary artery disease (CAD) requiring secondary preventive therapy with APT.
  6. Life threatening bleeding (BARC type ≥3) at the time of screening.
  7. Active bleeding, such as peptic ulcer, tumor bleeding or intracranial hemor-rhage at the time of screening.
  8. History of major bleeding, BARC class ≥3 within 3 months before study in-clusion.
  9. Known bleeding diathesis.
  10. Known coagulopathy or refusal of blood transfusion.
  11. Planned surgery or intervention at high bleeding risk during the study period.
  12. Co-administration of contraindicated medications as follows: other P2Y12 inhibitors (prasugrel or ticagrelor); anticoagulants (warfarin, new oral antico-agulants, or chronic therapy with subcutaneous anticoagulants); cytochrome P450 2C19 inhibitors (fluoxetine, moclobemid or voriconazole); probenecid; high dose of methotrexate (≥15 mg/week); lithium.
  13. Known pregnancy or lactation.
  14. Current participation in another clinical trial with drugs or medicinal products.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: moderate APT
moderate APT therapy, defined as 3 months ASA followed by cessation of APT
3 months ASA monotherapy, dose accoring to international guidelines and local Standard of Care
Comparatore attivo: intensive APT
intensive APT therapy, defined as 3 months DAPT (ASA + clopidogrel), followed by 9 months of clopidogrel monotherapy
3 months ASA + clopidgrel DAPT, followed by 9 months of clopidogrel monotherapy, doses accoring to international guidelines and local Standard of Care

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
MACE (Major Adverse Cardiovascular Events) with all-cause-mortality
Lasso di tempo: 12 months follow-up
MACE as a composite of all-cause mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke, or transient is-chemic attack
12 months follow-up

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
First secondary endpoint: MACE (Major Adverse Cardiovascular Events) with cardiovascular mortality
Lasso di tempo: 12 months follow-up
Composite endpoint consisting of cardiovascular mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke, or transient ischemic attack
12 months follow-up
second secondary endpdoint: NACE (Net adverse clinical events)
Lasso di tempo: 12 months follow-up
composite of cardiovascular mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke or transient ischemic attack and Bleeding aca-demia research consortium (BARC) bleeding types 3 or 5
12 months follow-up
MACE
Lasso di tempo: 3 Months follow-up
composite endpoint consisting of cardiovascular mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke, or transient ischemic attack
3 Months follow-up
all-cause mortality
Lasso di tempo: 3 months FU
3 months FU
all-cause mortality
Lasso di tempo: 12 months FU
12 months FU
cardiovascular mortality
Lasso di tempo: 3 months FU
3 months FU
cardiovascular mortality
Lasso di tempo: 12 months FU
12 months FU
myocardial infarction
Lasso di tempo: 3 months FU
3 months FU
myocardial infarction
Lasso di tempo: 12 months FU
12 months FU
recurrent SCAD
Lasso di tempo: 3 months FU
3 months FU
recurrent SCAD
Lasso di tempo: 12 months FU
12 months FU
unplanned coronary revascularization
Lasso di tempo: 3 months FU
3 months FU
unplanned coronary revascularization
Lasso di tempo: 12 months FU
12 months FU
ischemic stroke
Lasso di tempo: 3 months FU
3 months FU
ischemic stroke
Lasso di tempo: 12 months FU
12 months FU
transient ischemic attack
Lasso di tempo: 3 months FU
3 months FU
transient ischemic attack
Lasso di tempo: 12 months FU
12 months FU
NACE
Lasso di tempo: 3 months FU
composite of cardiovascular mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke or transient ischemic attack and BARC bleeding types 3 or 5
3 months FU
BARC bleeding type 1, 2, 3 or 5
Lasso di tempo: 3 months FU
3 months FU
BARC bleeding type 1, 2, 3 or 5
Lasso di tempo: 12 months FU
12 months FU
Menorrhagia associated quality of life
Lasso di tempo: 3 months FU
assessed with Menorrhagia multi-attribute scale (MMAS), consisting of 6 dimensions with 4-level Likert scale for responses
3 months FU
Menorrhagia associated quality of life
Lasso di tempo: 12 months FU
assessed with Menorrhagia multi-attribute scale (MMAS), consisting of 6 dimensions with 4-level Likert scale for responses
12 months FU
MACE
Lasso di tempo: 3 Months follow-up
composite endpoint consisting of all-cause mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke, or transient ischemic attack
3 Months follow-up
Health-related Quality of Life
Lasso di tempo: 3 months FU
assessed with EQ5D-5L questionnaire, consisting of 5 domains with 5-level Likert scale and a visual analogue self-rating scale (VAS) from 0 (worst) to 100 (best)
3 months FU
Health-related Quality of Life
Lasso di tempo: 12 months FU
assessed with EQ5D-5L questionnaire, consisting of 5 domains with 5-level Likert scale and a visual analogue self-rating scale (VAS) from 0 (worst) to 100 (best)
12 months FU
Patient Health Questionnaire PHQ-8
Lasso di tempo: 3 months FU
self-administered version of the Primary Care Evaluation of Mental Disorders diagnostic Instrument for common mental disorders. The PHQ-8 is the depression module, which scores each of the 8 diagnostic criteria for major depression in Diagnostic and Statistical Manual Fourth Edition using a 4-level Likert scale
3 months FU
Patient Health Questionnaire PHQ-8
Lasso di tempo: 12 months FU
self-administered version of the Primary Care Evaluation of Mental Disorders diagnostic Instrument for common mental disorders. The PHQ-8 is the depression module, which scores each of the 8 diagnostic criteria for major depression in Diagnostic and Statistical Manual Fourth Edition using a 4-level Likert scale
12 months FU
Generalized Anxiety Disorder (GAD-7) questionnaire
Lasso di tempo: 3 months FU
screening tool to identify probable cases of GAD and to assess symptom severity. 7 items and 4-level Likert-scale
3 months FU
Generalized Anxiety Disorder (GAD-7) questionnaire
Lasso di tempo: 12 months FU
screening tool to identify probable cases of GAD and to assess symptom severity. 7 items and 4-level Likert-scale
12 months FU

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 marzo 2027

Completamento primario (Stimato)

28 febbraio 2033

Completamento dello studio (Stimato)

28 febbraio 2033

Date di iscrizione allo studio

Primo inviato

2 giugno 2026

Primo inviato che soddisfa i criteri di controllo qualità

28 giugno 2026

Primo Inserito (Effettivo)

6 luglio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

6 luglio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 giugno 2026

Ultimo verificato

1 maggio 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • SCAD-ALIGN-DZHK31
  • 2025-523985-26-00 (Ctis)

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

INDECISO

Descrizione del piano IPD

to be determined as global study with various stakeholders and country-specific requirements.

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .