The placebo product consists of a soft capsule similar to the ones containing the active substance clinical trials

The Jason Study: Sulodexide (VESSEL®) for the prevention of recurrent venous thromboembolism in elderly patients after a first episode of venous thrombembolism

The Jason Study is looking at a medicine called Sulodexide (Vessel®) to see if it can stop blood clots (VTE) from coming back in older patients after their first clot. It also checks for serious side effects like bleeding.