Reversal Agent Use in Patients Treated With Direct Oral Anticoagulants or Vitamin K Antagonists (RADOA). Focus on New Antidots
- Conditions
- Severe BleedingUrgent Surgery
- Interventions
- Procedure: Urgent surgery which can not be postponed to the next 24 hrs
- Registration Number
- NCT03537521
- Lead Sponsor
- Cardioangiologisches Centrum Bethanien
- Brief Summary
Patients treated with Vitamin K antagonists (VKA) or direct oral anticoagulants as Rivaroxaban, Apixaban, Edoxaban or Dabigatran, who experience severe bleeding and/or need urgent interventions/operations that cannot wait are included in this registry, or during emergency operations
- Detailed Description
The Registry will offer the opportunity to evaluate the effects of reversal agents as PCC, aPCC, rVIIa, specific antidots in patients needing urgent interventions/operations or in severe bleeding patients treated with oral anticoagulants.
By collecting case reports from several university hospitals and clinics, different treatment strategies in clinical practice will be observed and evaluated, and may serve as a comprehensive information resource for the safe management with DOA, but also with the long-term anticoagulation based on coumarin derivatives in the near future.
The current objective of this registry is to:
1. Document the clinical course and outcome of various clinical bleeding events associated with DOA or VKA in patients with severe life-threatening bleeding making intervention necessary
2. Document the clinical course and outcome of urgent surgical interventions within 24 hours after admission in patients under DOA or VKA treatment.
3. Characterisation of therapeutic strategies in stopping acute life-threatening bleeding including following agents and methods:
1. blood transfusion,
2. platelet concentrates
3. reversal agents \[e.g. vitamin K, prothrombin complex concentrate (PCC), activated PCC (aPCC), activated factor VII (aVII), fibrinogen concentrate, fresh frozen plasma (FFP)\]
4. specific antidots, e.g. idarucizumab, Andexanet alpha
5. haemodialysis
6. desmopressin
7. tranexamic acid
8. no specific treatment in respect to the above mentioned treatments (e.g. stop of medication and waiting until anticoagulant effect of DOA is decreased).
Recruitment & Eligibility
- Status
- WITHDRAWN
- Sex
- All
- Target Recruitment
- Not specified
Group a) Bleeding patients:
- Anticoagulated patients with DOA or VKA with clinically overt major bleeding according to a specified ISTH definition for non-surgical patients:
- Symptomatic bleeding in a critical area or organ, such as intracranial, intraspinal, intraocular, retroperitoneal, intraarticular or pericardial, or intramuscular with compartment syndrome
- Bleeding causing a fall in hemoglobin level of 2 g L-1 (1.24 mmol L-1 ) or more leading to transfusion of two or more units of whole blood or red cells.
OR
Group b) Acute surgical need patients
- treated with DOA or VKA and who need urgent operation which cannot wait (< 24 h after last intake of drug)
- with or without reversal agent use (e.g. PCC, aPCC, rVIIa) (and/or haemodialysis for dabigatran)
- provides informed consent after the acute event
Exclusion Criteria for Group a and b:
- Conscious patient by him-/ herself or his/ her available legal representative does not agree with inclusion in the registry
- Age < 18 years
- Concomitant participation in an interventional trial
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description VKA Urgent surgery which can not be postponed to the next 24 hrs N= 130 patients treated with vitamin K antagonists (VKA) with acute bleeding N= 65 patients treated with vitamin K antagonists (VKA) with urgent surgical intervention DOA Urgent surgery which can not be postponed to the next 24 hrs N= 130 patients treated with direct oral anticoagulants (DOAC) with acute bleeding N= 65 patients treated with direct oral anticoagulants (DOAC) with urgent surgical intervention
- Primary Outcome Measures
Name Time Method In hospital mortality up to 30 days after admission up to 30 days after hospital admission Death rate (number of deaths)
- Secondary Outcome Measures
Name Time Method Definition of supportive measures being effective in stopping bleeding up to 30 days after hospital admission documentation of supportive measures in eCRF
Effectiveness of dialysis vs. no dialysis in case of dabigatran accumulation associated with bleeding up to 30 days after hospital admission time frame until stop of bleeding
Fatality rate caused by unstoppable bleeding up to 30 days after hospital admission Death rate (number of deaths)
Causality assessment: Relation of SAE to anticoagulant medication up to 30 days after hospital admission Decission according to the treating physicians
Stop of bleeding defined according to the treating physicians up to 30 days after hospital admission Decission according to the treating physicians
Use versus no use of reversal agents - difference in outcome? up to 30 days after hospital admission documentation of use of reversal agents in eCRF
Blood loss, number of transfusions necessary up to 30 days after hospital admission documentation of supportive measures in eCRF
Satisfaction of surgeon during and after surgery concerning bleeding up to 30 days after hospital admission Decission according to the treating physicians
Use versus no use of reversal agents - difference in blood loss and number of transfusions up to 30 days after hospital admission documentation of supportive measures in eCRF
Delay in performance of surgery due to anticoagulation up to 30 days after hospital admission time Frame documented in eCRF