Direct oral anticoagulant dose selection: Challenging cases.

Area of Science:

• Pharmacology
• Clinical Medicine
• Cardiology

Background:

• Direct oral anticoagulants (DOACs) are widely used for anticoagulation therapy.
• Current guidelines recommend fixed dosing based on pivotal trials, often without routine laboratory monitoring.
• However, optimal DOAC dosing remains uncertain for certain patient populations.

Observation:

• Phase III trials varied in DOAC dosing strategies, including fixed standard doses, higher/lower dose arms, and dose reduction for specific risk groups.
• Patients with atrial fibrillation at high bleeding risk but not meeting guideline criteria present a dosing challenge.
• Extended treatment for venous thromboembolism may involve standard or reduced DOAC doses, requiring careful consideration.

Findings:

• This review adopts a case-based approach to address DOAC dose selection complexities.
• It focuses on two specific clinical scenarios where standard dosing protocols may require adjustment.
• The approach aims to provide clarity on optimizing DOAC therapy in challenging patient profiles.

Implications:

• Optimizing DOAC dosing can improve treatment efficacy and patient safety.
• This case-based strategy may help clinicians navigate complex dosing decisions in anticoagulation.
• Further research into individualized DOAC dosing could refine clinical practice and patient outcomes.