- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus NCT07683923
Spontaneous Coronary Artery Dissection - AntipLatelet Therapy Intensity in Guided coNservative Management (SCAD-ALIGN) Trial (SCAD-ALIGN)
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.
Tutkimuksen yleiskatsaus
Tila
Interventio / Hoito
Yksityiskohtainen kuvaus
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Vaihe
- Vaihe 4
Yhteystiedot ja paikat
Opiskeluyhteys
- Nimi: Stefan Blankenberg, MD
- Puhelinnumero: 53972 +49 407410
- Sähköposti: s.blankenberg@uke.de
Tutki yhteystietojen varmuuskopiointi
- Nimi: Jane A. Leopold, MD
- Sähköposti: jleopold@bwh.harvard.edu
Opiskelupaikat
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Nieuwegein, Alankomaat, 3435 CM
- Division of Cardiology, St. Antonius Hospital
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Ottaa yhteyttä:
- Jurrien M. ten Berg, MD
- Sähköposti: jurtenberg@gmail.com
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British Columbia
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Vancouver, British Columbia, Kanada, V5Z 1M9
- Division of Cardiology, Vancouver General Hospital, University of British Columbia
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Ottaa yhteyttä:
- Jacqueline Saw, MD
- Sähköposti: jsaw@mail.ubc.ca
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Linköping, Ruotsi, SE-581 83
- Department of Cardiology and Department of Medical and Health Sciences, Linköping University
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Ottaa yhteyttä:
- Ewa Swahn, MD
- Sähköposti: eva.swahn@liu.se
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Free and Hanseatic City of Hamburg
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Hamburg, Free and Hanseatic City of Hamburg, Saksa, 20246
- University Medical Center Hamburg-Eppendorf
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Ottaa yhteyttä:
- Christina Magnussen, MD
- Sähköposti: c.magnussen@uke.de
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Leicester, Yhdistynyt kuningaskunta, LE1 5WW
- University Hospitals of Leicester NHS Trust
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Ottaa yhteyttä:
- David Adlam, MD
- Sähköposti: da134@le.ac.uk
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
- Aikuinen
- Vanhempi Aikuinen
Hyväksyy terveitä vapaaehtoisia
Kuvaus
Inclusion Criteria:
- Age ≥18 years.
- Presentation with an Acute Coronary Syndrome.
- Suspected SCAD on coronary angiography (determined by the local investigator).
- Planned conservative treatment of SCAD.
- Intensive as well as moderate treatment of SCAD is possible.
- 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.
- The patient is cooperative and available for the entire study.
- Written and informed consent.
- For women of childbearing potential: Patient is willing to use adequate contraceptive precautions during the study (until 12 Month FU)
Exclusion Criteria:
- Hypersensitivity to the study medication.
- Any indication for oral anticoagulation.
- Any indication for APT (including thienopyridines, non-thienopyridines, ASA and other anti-thrombotic agents) other than SCAD.
- Cardiogenic shock at the time of screening.
- Coronary artery disease (CAD) requiring secondary preventive therapy with APT.
- Life threatening bleeding (BARC type ≥3) at the time of screening.
- Active bleeding, such as peptic ulcer, tumor bleeding or intracranial hemor-rhage at the time of screening.
- History of major bleeding, BARC class ≥3 within 3 months before study in-clusion.
- Known bleeding diathesis.
- Known coagulopathy or refusal of blood transfusion.
- Planned surgery or intervention at high bleeding risk during the study period.
- 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.
- Known pregnancy or lactation.
- Current participation in another clinical trial with drugs or medicinal products.
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Hoito
- Jako: Satunnaistettu
- Inventiomalli: Rinnakkaistehtävä
- Naamiointi: Yksittäinen
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Kokeellinen: moderate APT
moderate APT therapy, defined as 3 months ASA followed by cessation of APT
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3 months ASA monotherapy, dose accoring to international guidelines and local Standard of Care
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Active Comparator: intensive APT
intensive APT therapy, defined as 3 months DAPT (ASA + clopidogrel), followed by 9 months of clopidogrel monotherapy
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3 months ASA + clopidgrel DAPT, followed by 9 months of clopidogrel monotherapy, doses accoring to international guidelines and local Standard of Care
|
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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MACE (Major Adverse Cardiovascular Events) with all-cause-mortality
Aikaikkuna: 12 months follow-up
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MACE as a composite of all-cause mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke, or transient is-chemic attack
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12 months follow-up
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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First secondary endpoint: MACE (Major Adverse Cardiovascular Events) with cardiovascular mortality
Aikaikkuna: 12 months follow-up
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Composite endpoint consisting of cardiovascular mortality, myocardial infarction, recurrent SCAD, unplanned coronary revascularization, ischemic stroke, or transient ischemic attack
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12 months follow-up
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second secondary endpdoint: NACE (Net adverse clinical events)
Aikaikkuna: 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
|
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MACE
Aikaikkuna: 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
|
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all-cause mortality
Aikaikkuna: 3 months FU
|
3 months FU
|
|
|
all-cause mortality
Aikaikkuna: 12 months FU
|
12 months FU
|
|
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cardiovascular mortality
Aikaikkuna: 3 months FU
|
3 months FU
|
|
|
cardiovascular mortality
Aikaikkuna: 12 months FU
|
12 months FU
|
|
|
myocardial infarction
Aikaikkuna: 3 months FU
|
3 months FU
|
|
|
myocardial infarction
Aikaikkuna: 12 months FU
|
12 months FU
|
|
|
recurrent SCAD
Aikaikkuna: 3 months FU
|
3 months FU
|
|
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recurrent SCAD
Aikaikkuna: 12 months FU
|
12 months FU
|
|
|
unplanned coronary revascularization
Aikaikkuna: 3 months FU
|
3 months FU
|
|
|
unplanned coronary revascularization
Aikaikkuna: 12 months FU
|
12 months FU
|
|
|
ischemic stroke
Aikaikkuna: 3 months FU
|
3 months FU
|
|
|
ischemic stroke
Aikaikkuna: 12 months FU
|
12 months FU
|
|
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transient ischemic attack
Aikaikkuna: 3 months FU
|
3 months FU
|
|
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transient ischemic attack
Aikaikkuna: 12 months FU
|
12 months FU
|
|
|
NACE
Aikaikkuna: 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
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3 months FU
|
|
BARC bleeding type 1, 2, 3 or 5
Aikaikkuna: 3 months FU
|
3 months FU
|
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BARC bleeding type 1, 2, 3 or 5
Aikaikkuna: 12 months FU
|
12 months FU
|
|
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Menorrhagia associated quality of life
Aikaikkuna: 3 months FU
|
assessed with Menorrhagia multi-attribute scale (MMAS), consisting of 6 dimensions with 4-level Likert scale for responses
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3 months FU
|
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Menorrhagia associated quality of life
Aikaikkuna: 12 months FU
|
assessed with Menorrhagia multi-attribute scale (MMAS), consisting of 6 dimensions with 4-level Likert scale for responses
|
12 months FU
|
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MACE
Aikaikkuna: 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
|
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Health-related Quality of Life
Aikaikkuna: 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
|
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Health-related Quality of Life
Aikaikkuna: 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
|
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Patient Health Questionnaire PHQ-8
Aikaikkuna: 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
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3 months FU
|
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Patient Health Questionnaire PHQ-8
Aikaikkuna: 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
|
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Generalized Anxiety Disorder (GAD-7) questionnaire
Aikaikkuna: 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
Aikaikkuna: 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
|
Yhteistyökumppanit ja tutkijat
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Arvioitu)
Ensisijainen valmistuminen (Arvioitu)
Opintojen valmistuminen (Arvioitu)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Muita asiaankuuluvia MeSH-ehtoja
- Verisuonisairaudet
- Sydän-ja verisuonitaudit
- Sydänsairaudet
- Sydänlihaksen iskemia
- Akuutti sepelvaltimo-oireyhtymä
- Sepelvaltimon dissektio, spontaani
- Rikkiyhdisteet
- Orgaaniset kemikaalit
- Pyridiinit
- Heterosykliset yhdisteet, 1-rengas
- Heterosykliset yhdisteet
- Heterosykliset yhdisteet, 2-rengas
- Heterosykliset yhdisteet, sulatettu rengas
- Hiilivety
- Hiilivedyt, sykliset
- Hiilivedyt, aromaattiset
- Fenolit
- Bentseenijohdannaiset
- Tiofeenit
- Salisylaatit
- Hydroksibentsoaatit
- Tiklopidiini
- Thienopyridiinit
- Klopidogreeli
- Aspiriini
Muut tutkimustunnusnumerot
- SCAD-ALIGN-DZHK31
- 2025-523985-26-00 (Ctis)
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