A Prospective, Open Label Study Evaluating Two Management Strategies on Gastrointestinal Symptoms in Patients Newly on Treatment With Pradaxa for the Prevention of Stroke and Systemic Embolism With Non-valvular Atrial Fibrillation

This is a prospective and open label study that aims to enroll approximately 1200 patients with non-valvular atrial fibrillation (NVAF) not previously treated with Pradaxa® and free of gastrointestinal symptoms (GIS) for at least 2 weeks prior to enrolment. Approximately 125 sites in North America will be recruited. Patients who report GIS during the 3 month treatment period will be randomized to one of two management strategies, and data documenting the intensity and duration of the GIS will be collected.