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Observational Study to Characterize Patients Experiencing Major Acute Bleeding Events During Anticoagulation Treatment With Oral Factor Xa Inhibitors.

Observational, Prospective, Multicentre, Collaborative Study, to Characterize Patients Experiencing Major Acute Bleeding Events During Anticoagulation Treatment With Oral Factor Xa Inhibitors

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07745933
Acronym
EMERALD
Enrollment
503
Registered
2026-08-04
Start date
2024-12-19
Completion date
2026-07-29
Last updated
2026-08-04

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

Conditions

Major Bleeding, Major Bleeding Outcomes

Keywords

anticoagulation with oral FXa inhibitors, observational pharmacological study, major bleeding, real-world, treatment methods for major acute bleeding events

Brief summary

Oral factor Xa inhibitors are widely used for the prevention of cardioembolic events in patients with atrial fibrillation and for the treatment of venous thromboembolism, thanks to their good efficacy/safety ratio compared to vitamin K antagonists. However, major bleeding remains a potentially life-threatening event, a relevant complication and real-world treatments are still heterogeneous and there are limited data available in the literature.It is therefore considered particularly important to collect and analyze information on how major bleeding complications are treated in clinical practice and to examine the outcomes. The objective of this study is to implement a prospective, computerized collection of clinical information, as a basis for identifying and analysing patient characteristics and treatment methods for major acute bleeding events occurring during anticoagulation with oral FXa inhibitors (apixaban, edoxaban, rivaroxaban) documenting the short-term clinical outcomes and those 3 months (90 days) after the acute event. The main questions the study aims to answer are: * What are the severe clinical outcomes for these patients, specifically the composite incidence of death, the need for Intensive Care Unit (ICU) admission, or the need for bleeding-related rescue surgery? * What are the characteristics of the patients experiencing these events, and how are these bleeding complications managed in real-world clinical practice? Because this is an observational study, there are no experimental pharmacological interventions. Participants will receive standard clinical care based on the normal practice of each participating hospital. Data will be evaluated during the acute hospitalization phase and at a 3-month (90 days) follow-up after the initial event The study is coordinated by FADOI (Italian Society of Hospital Internal Medicine) in collaboration with AIGO (Italian Association of Hospital Gastroenterologists and Digestive Endoscopists), AII-ISA (Italian Stroke Association) and SIMEU (Italian Society of Emergency Medicine); for this the study involves not fewer than 500 consecutive patients hospitalized in Internal Medicine, Gastroenterology, Neurology and Emergency Medicine in 50 hospital centers distributed throughout Italy. This is a prospective, observational, multicentre, pharmacological, collaborative study. Information will be collected on patients experiencing major acute bleeding events, with details of the treatment given and the clinical outcome, both in the acute phase and 3 months (90 days) after the index event. Given the observational nature of the study, there are no indications regarding the type of patients' management and/or treatment to be performed. However, major bleeding remains a relevant complication and real-world treatments are still heterogeneous and this study aims to prospectively collect data on the management of these events, including the use of available therapies.

Interventions

None listed

Sponsors

Fadoi Foundation, Italy
Lead SponsorOTHER
AstraZeneca
CollaboratorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Patients currently receiving oral FXa inhibitors (apixaban, edoxaban, rivaroxaban), irrespective of anticoagulant dosage and duration of treatment, and presenting a major acute bleeding complication \* \* Events that qualify patients for the study: • Major spontaneous or post-traumatic bleeding, in accordance with the International Society on Thrombosis and Haemostasis (ISTH) definition 2. Age \>18 years 3. Provision of informed consent prior to any study specific procedures

Exclusion criteria

1\) None

Design outcomes

Primary

MeasureTime frameDescription
Composite Incidence of Death, ICU Admission, or Bleeding-Related Rescue Surgery3 months post-index eventNumber of participants experiencing at least one of the following events: all-cause mortality, admission to the Intensive Care Unit (ICU), or need for bleeding-related rescue surgery following an acute major bleeding event while on oral FXa inhibitor therapy.

Secondary

MeasureTime frameDescription
Patient AgeBaseline (at enrollment)Age of participants at baseline
Biological Sex DistributionBaseline (at enrollment)Number of male and female participants enrolled in the study.
Distribution of Oral FXa InhibitorsBaseline (at enrollment)Number of participants receiving apixaban, edoxaban, or rivaroxaban at the time of the index bleeding event.
In-Hospital Composite Incidence of Death, ICU Admission, or Rescue SurgeryFrom index event up to hospital discharge (assessed up to 3 months)Number of participants experiencing death, ICU admission, or need for bleeding-related rescue surgery during the index hospitalization period.
Time to HemostasisFrom treatment initiation up to 24 hoursTime elapsed from initiation of acute bleeding treatment to cessation of active bleeding (door-to-needle time and treatment duration).
Hemostatic Efficacy GradeAt 24 hours post-treatmentProportion of participants achieving effective hemostasis evaluated according to specific clinical criteria.
Incidence of Thromboembolic Events and Recurrent BleedingThrough 3 months follow-upNumber of participants experiencing ischemic stroke, myocardial infarction, pulmonary embolism, deep vein thrombosis, systemic embolism, or new bleeding episodes.
Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs)Through 3 months follow-upNumber of participants experiencing any AE or SAE possibly related to the administered hemostatic treatments.

Countries

Italy

Contacts

STUDY_CHAIRFrancesco Dentali, Prof.

Fadoi Foundation President / Department of Medicine, ASST-Settelaghi, Varese

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 5, 2026