This study will test a computer-based behavioral intervention to decrease cocaine use. Those who fail to achieve cocaine abstinence after the first 4 weeks while receiving the behavioral treatment will continue the behavioral treatment and be randomly assigned to one of two groups (one group will receive Adderall-XR (MAS-ER) and the other group will receive…
The purpose of this study is to find out how doctors describe hepatic encephalopathy episodes in patients medical records in the course of their regular practice. The aim of the study is simply to collect information from their medical records about how their episodes of overt hepatic encephalopathy are described. There is nothing that will be required of…
The purpose of this study is to compare the time to onset of an episode of overt HE, in subjects with previously demonstrated overt HE after treatment with rifaximin 550 mg BID and lactulose, or rifaximin 550 mg BID. Subjects will be screened to confirm eligibility into the study. Once confirmed, subjects will begin the treatment phase and will be randomly…
The study is a two group outpatient study, one group receiving medications (Adderall-XR and topiramate) and one group receiving a placebo (inactive sugar pill). The study is looking at the safety and effectiveness of Adderall-XR (MAS-ER) and topiramate in the treatment of cocaine dependence. It is a 14-week trial that requires patients to attend visits 3…
The purpose of this study is to evaluate the safety and tolerability of study drug CCX168 when it is given to patients who are receiving the standard therapy for a certain type of vasculitis called ANCA-associated vasculitis (AAV). The study will also assess the effectiveness of the study drug, CCX168, in combination with the standard treatment of AAV. This…