| Patient-controlled Admissions in Inpatient Mental Health Services (NCT03609515) | University Hospital, Akershus | 2011-04-01 |
| Duration of Untreated Psychosis (DUP) and Pathways to Care in Nordland (NCT01196858) | University Hospital of North Norway | 2010-09-01 |
| D-amino Acid Oxidase Inhibition (DAAOI-1) add-on Treatment for Chronic Schizophrenia (NCT00960219) | China Medical University Hospital | 2009-04-01 |
| DNA Diagnostics for Minimizing Metabolic Side-Effects of Antipsychotics (NCT00752960) | Genomas, Inc | 2007-01-01 |
| Sarcosine Preventive Therapy for Individuals At High Risk for Schizophrenia (NCT00276263) | Herzog Hospital | 2006-08-01 |
| Sarcosine or D-Serine Add-on Treatment for Chronic Schizophrenia (NCT00491569) | China Medical University Hospital | 2005-01-01 |
| Sarcosine (N-Methylglycine) Monotherapy for Schizophrenia (NCT00328276) | China Medical University Hospital | 2004-12-01 |
| Access, Detection and Psychological Treatments (NCT00260273) | Ontario Mental Health Foundation | 2004-08-01 |
| Treatment of Hallucinosis/Psychosis in Parkinson's Disease by an Investigational Drug (NCT00087542) | ACADIA Pharmaceuticals Inc. | 2004-03-01 |
| Aripiprazole in Patients With Psychosis Associated With Parkinson's Disease (NCT00095810) | Otsuka Pharmaceutical Development & Commercialization, Inc. | 2003-07-01 |
| Prodrome-Based Early Intervention With Antipsychotics vs. Benzodiazepines in First-Episode Schizophrenia (NCT00159133) | Heinrich-Heine University, Duesseldorf | 2001-11-01 |
| Maintenance Treatment vs. Stepwise Drug Discontinuation in First-Episode Schizophrenia (NCT00159120) | Heinrich-Heine University, Duesseldorf | 2001-11-01 |
| Early Pharmacological and Psychological Intervention for Late Prodromal States of Psychosis (NCT00204061) | University of Cologne | 2001-01-01 |
| Brain Cell Injury in Patients With A First Episode of Psychosis (NCT00070889) | National Center for Complementary and Integrative Health (NCCIH) | 1999-09-01 |