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Identificación de biomarcadores proteicos asociados a resistencia a la aspirina y a tienopiridinas en pacientes con cardiopatía isquémica establecida. (ESTUDIO BIRAT). Identification of new protein biomarkers associated with aspirin and thienopyridine resistance in stable coronary ischaemic patients: a proteomic study. (BIRAT Study). - BIRAT

Identificación de biomarcadores proteicos asociados a resistencia a la aspirina y a tienopiridinas en pacientes con cardiopatía isquémica establecida. (ESTUDIO BIRAT). Identification of new protein biomarkers associated with aspirin and thienopyridine resistance in stable coronary ischaemic patients: a proteomic study. (BIRAT Study). - BIRAT

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-006686-32-ES
Enrollment
Unknown
Registered
2008-03-27
Start date
2008-05-22
Completion date
Unknown
Last updated
2012-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

To determine proteins in plasma, leukocytes and platelets associated with aspirin resistance syndrome in stable coronary artery disease patients that may allow us to identify them.It is probably that may also exist proteins that allows us to identify thienopyridine resistance Identificar en plasma, leucocitos y plaquetas proteínas asociadas con resistencia a aspirina en pacientes con enfermedad coronaria estable.Podrían existir proteínas que nos permitan identificar resistencia a tienopiridinas

Interventions

Trade Name: prasugrel Product Name: prasugrel Product Code: prasugrel (CS747) Pharmaceutical Form: Film-coated tablet INN or Proposed INN: PRASUGREL CAS Number: 389574-19-0 Current Sponsor code: CS-74

Sponsors

FUNDACIÓN INVESTIGACIÓN BIOMEDICA DEL HOSPITAL CLINICO SAN CARLOS
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: -Men and women, ages 18 or older -Documented history of coronary disease define as >50% stenosis in >/= 1 major coronary artery, clinically stable for at least 6 months. -Stable clinical situation at least during the last month. -Patients receiving AAS 100 mg daily at least during the last month and with the last AAS dosage 24 hours before -Written consent Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: -Another antithrombotic treatment than AAS in the previous month -Presence of active infectious or tumoral disease -Recent trauma or major surgery, angioplasty or cathetherism during the last month -Atorvastatin treated patients -Patients receiving antiinflammatory treatment during the last month -No written consent

Design outcomes

Primary

MeasureTime frame
Main Objective: To develop the protein expression map of plasma from stable coronary artery disease patients with and without plasma resistance, using as reference their platelet functionality. In the case of identify a protein or protein isoform related with aspirin resistance we also will determine if this protein modifies aspirin inhibition of platelet COX-1.;Secondary Objective: -To develop the protein expression map of platelets from stable coronary disease patients with and without aspirin resistance, using as reference their platelet functionality. -To develop the protein expression map o mononuclear cells from stable coronary disease patients with and without aspirin resistance using as reference their platelet functionality -To identify if clopidogrel or prasugrel administration inhibits, at different way, the platelet activation in aspirin resistant patients. -To identify if there are proteins or proteins isoforms related with clopidogrel or prasugrel resitance, using as reference their platelet functionality;Primary end point(s): The primary efficacy objective of this study will be to identify in plasma, mononuclear cells and platelets protein changes related with the aspirin resistance and thienopyridine resistance syndrome in coronary stable patients, determined by proteomics. Different kind of proteins will be identified in the three types of samples. Primary endpoints: -platelet functionality using the PFA-100 system -Expression of plasma proteins (examples of proteins that will be identified: alpha 1-antitrypsin isoforms, Albumin, fibrinogen gamma chain isoforms, vitamin D binding protein isoforms, Ceruloplasmin, Apolipoprotein AIV, Apolipoproteína AI isoforms, Tropomiosin isoforms, serotransferrine isoforms, haptoglobin isoforms etc..). -Expression of platelt proteins (examples of proteins that will be identified:Proteins related with the energetic metabolism such as Piruvate Kinase, Lactate Dehydrogenase, phosphodisulfide-Isomerase, Gliceraldehido

Countries

Spain

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026