Apixaban: Lack of efficacy: case report.

She was noticed to have left leg swelling which on doppler ultrasound showed deep vein thrombosis (DVT). Despite being compliant with apixaban [Eliquis] for atrial fibrillation, she developed a DVT, indicating lack of efficacy to apixaban. B Author Information b An event is serious (based on the ICH definition) when the patient outcome is: * death * life-threatening * hospitalisation * disability * congenital anomaly * other medically important event A 72-year-old woman exhibited lack of efficacy during treatment with apixaban for atrial fibrillation [ I dosage and route not stated i ] The woman with atrial fibrillation, rheumatoid arthritis and pernicious anaemia came with 1 week of nausea, vomiting and abdominal pain. [Extracted from the article]