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Influence of anticoagulants on microparticle formation

A prospective, randomized, controlled open-label trial to investigate the effects of 10mg rivaroxaban or 110mg dabigatran on microparticle formation in critically ill patients compared to age-& sex-matched subjects - MP & anticoagulants

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2011-002084-20-AT
Enrollment
Unknown
Registered
2011-06-01
Start date
2011-07-28
Completion date
Unknown
Last updated
2013-07-15

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

Conditions

The effect of the used IMPs should be investigated in critically ill patients and healthy subjects

Interventions

Trade Name: Xarelto 10 mg Pharmaceutical Form: Tablet INN or Proposed INN: RIVAROXABAN CAS Number: 366789-02-8 Concentration unit: mg milligram(s) Concentration type: equal Concentration number: 10-

Sponsors

Medizinische Universität Wien; Universitätsklinik für Klinische Pharmakologie
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: • ICU patients • Male or female sex, age of ?18 yrs. • Critical illness requiring admission to the ICU. • Presence of Ileus or Subileus • Need for prophylactic systemic anticoagulation due to physical conditions. • Presence of disease that is associated with elevated MP levels such as sepsis, cardiovascular disease, tumor, diabetes or hyperlipidemia. • Normal renal function (serum creatinine of ?1.3 mg/dL). • Prothrombin time of ?30%. • Thrombocyte count >80 G/L. • Written informed consent by capacitated subjects. Incapacitated subjects will be informed about their study participation after having regained full consciousness. If a legal representative has been assigned,informed consent will be obtained by this person. • Controls • Male or female sex, age = 18 yrs. • Matched by age (?3 years) and sex to ICU patients. • Presence of disease that is associated with elevated MP levels such as cardiovascular disease, tumor, diabetes or hyperlipidemia. • No medical history of coagulation disorder or thromboembolic event. • Well-controlled concomitant diseases. • Written informed 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 64 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 64

Exclusion criteria

Exclusion criteria: a. Hereditary or acquired coagulation disorders. b. Systemic treatment with antiplatelet therapy (ASS, clopidogrel, prasugrel or others) within the previous 2 days. c. In females: pregnancy or lactation. d. Systemic treatment with heparin in the previous 12 hours before study drug administration.

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the effect of Xarelto/ Pradaxa on microparticle formation in critically ill compared to age- & sex-matched subjects.;Secondary Objective: To evaluate the effects of Xarelto/ Pradaxa on fibrin formation in an ex-vivo perfusion chamber model. To evaluate the effects of Xarelto/ Pradaxa on systemic fibrin formation by assessment of the endogenous thrombin potential, thrombin coagulation time, levels of D-Dimers, prothrombin fragement 1+2, soluble sP-selectin and aPTT;Primary end point(s): Plasma Microparticle concentrations;Timepoint(s) of evaluation of this end point: baseline, 3, 6 and 10hrs after IMP adminstration

Secondary

MeasureTime frame
Secondary end point(s): 1. Thrombus size (D-Dimer content of degraded ex-vivo thrombus) 2. Endogenous thrombin potential (ETP) 3. Human fibrin fragment F1+2, thrombin coagulation time (TCT), levels of D-Dimers, soluble sP-selectin and of activated partial thromboplastin time (aPTT). ;Timepoint(s) of evaluation of this end point: baseline, 1, 3,6 and 10hrs after IMP administration

Countries

Austria

Contacts

Public ContactSecretary of the Department

Medizinische Universität Wien; Universitätsklinik für Klinische Pharmakologie

michael.wolzt@meduniwien.ac.at431404002981

Outcome results

None listed

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