| Treatment of Early Onset Schizophrenia Spectrum Disorders (TEOSS) (NCT00053703) | University of North Carolina, Chapel Hill | 2002-02-01 |
| Tetrabenazine for Partial Responders (NCT00362804) | Centre for Addiction and Mental Health | 2002-02-01 |
| Trial of Ampakine Added to Clozapine, Olanzapine or Risperidone in Patients With Schizophrenia (NCT00235352) | North Suffolk Mental Health Association | 2002-02-01 |
| Treating Thought Problems in Patients With Schizophrenia (NCT00051740) | The University of Texas Health Science Center at San Antonio | 2002-02-01 |
| Large Simple Trial (LST) Of Cardiovascular Safety Of Ziprasidone And Olanzapine- (Zodiac) (NCT00418171) | Pfizer | 2002-02-01 |
| A Study on Etiological Factors of Schizophrenia (NCT00155636) | National Taiwan University Hospital | 2002-01-01 |
| Effect of Specific Anti-Toxoplasmatic Add-on Medication in Toxoplasma Gondii Seropositive Individuals With Schizophrenia or Major Depression (NCT00300404) | Zentrum für Integrative Psychiatrie | 2002-01-01 |
| Atypical Antipsychotic Treatment Effect On Brain Function In Schizophrenia Measured By FMRI (NCT01234454) | University of North Carolina, Chapel Hill | 2002-01-01 |
| Treatment Response to Rehabilitation in Patients With Schizophrenia (NCT00063336) | Hartford Hospital | 2001-12-01 |
| Risperidone Treatment in Schizophrenia Patients Who Are Currently Taking Clozapine (NCT00056498) | University of Maryland, Baltimore | 2001-12-01 |
| Functional Brain Activation Patterns in Schizophrenia, Measured Before and After Treatment (NCT00161057) | UMC Utrecht | 2001-12-01 |
| A Long Term Study of Long-acting Injectable Risperidone in the Treatment of Patients With Schizophrenia (NCT00236587) | Johnson & Johnson Pharmaceutical Research & Development, L.L.C. | 2001-11-01 |
| Indicated Prevention of Psychotic Disorders With Low-dose Lithium (NCT00202306) | Melbourne Health | 2001-11-01 |
| Effect And Safety Of Ziprasidone Compared To Other Atypical Antipsychotic Drug In Schizophrenic Patients (NCT00159770) | Pfizer's Upjohn has merged with Mylan to form Viatris Inc. | 2001-11-01 |
| Study on the Safety and Effectiveness of Risperidone Treatment of Acute Psychotic Patients (NCT00515489) | Janssen-Cilag, S.A. | 2001-11-01 |
| Effect of Quetiapine on Negative Symptoms and Cognition (NCT00305422) | AstraZeneca | 2001-11-01 |
| Maintenance Treatment vs. Stepwise Drug Discontinuation in First-Episode Schizophrenia (NCT00159120) | Heinrich-Heine University, Duesseldorf | 2001-11-01 |
| Prodrome-Based Early Intervention With Antipsychotics vs. Benzodiazepines in First-Episode Schizophrenia (NCT00159133) | Heinrich-Heine University, Duesseldorf | 2001-11-01 |
| Treating Drug-Resistant Childhood Schizophrenia (NCT00048828) | Northwell Health | 2001-10-01 |
| Relationship Between Neurotransmitter Receptor Polymorphisms, Plasma Concentrations and Clinical Response to Clozapine (NCT00581932) | Delwyn D. Miller | 2001-10-01 |
| A Long-term Safety Study for Long-acting Injectable Risperidone in Schizophrenia or Schizoaffective Disorder Patients. (NCT00495118) | Janssen, LP | 2001-10-01 |
| Generalization of Training in Schizophrenia (NCT00108199) | US Department of Veterans Affairs | 2001-10-01 |
| Extension Study of Patients Successfully Treated by Ziprasidone in Study A1281031 (NCT00174447) | Pfizer's Upjohn has merged with Mylan to form Viatris Inc. | 2001-10-01 |
| Glucose and Lipid Metabolism on Antipsychotic Medication (NCT00515723) | Washington University School of Medicine | 2001-09-01 |
| Treatment of Schizophrenia With an Omega-3 Fatty Acid (EPA) and Antioxidants (NCT00419146) | University Hospital, Aker | 2001-09-01 |
| Treating Nicotine Dependence in Schizophrenic Individuals: Effectiveness of Bupropion - 1 (NCT00124683) | National Institute on Drug Abuse (NIDA) | 2001-09-01 |
| Olanzapine Versus Active Comparator in the Treatment of Depression in Patients With Schizophrenia (NCT00034801) | Eli Lilly and Company | 2001-09-01 |
| Antidepressant Treatment in Older Adults With Schizophrenia (NCT00047450) | Veterans Medical Research Foundation | 2001-09-01 |
| Health Care Management and Rehabilitation Skills Training for Treating Serious Mental Illness in Older People (NCT00169052) | Dartmouth-Hitchcock Medical Center | 2001-09-01 |
| Olanzapine Versus An Active Comparator in the Treatment of Schizophrenia (NCT00036088) | Eli Lilly and Company | 2001-08-01 |
| A Study to Assess Safety and Tolerabiltiy Associated With a Switch From Oral Antipsychotic Medications to Long-acting Injectable Risperidone in Patients With Schizophrenia. (NCT00034775) | Johnson & Johnson Pharmaceutical Research & Development, L.L.C. | 2001-08-01 |
| Aggressive Acts Among Patients With Schizophrenia (NCT00172497) | National Taiwan University Hospital | 2001-08-01 |
| Cognitive Enhancement Therapy for Early-Stage Schizophrenia (NCT00167362) | Beth Israel Deaconess Medical Center | 2001-08-01 |
| Study on the Safety of Risperidone on Obese or Overweight Patients With Schizophrenia (NCT00511628) | Janssen-Cilag, S.A. | 2001-07-01 |
| Switching Medication to Treat Schizophrenia (NCT00044655) | Icahn School of Medicine at Mount Sinai | 2001-07-01 |
| Rehabilitative Training for Older People With Schizophrenia (NCT00071591) | University of California, San Diego | 2001-07-01 |
| Nicotine Replacement Therapy for Smoking Cessation in Schizophrenia (NCT00320723) | North Suffolk Mental Health Association | 2001-07-01 |
| A Comparison of Seroquel vs. Risperidone in Schizophrenia (NCT00034905) | AstraZeneca | 2001-07-01 |
| A Study of Risperidone in Combination With Lorazepam Compared With Standard Therapy for Emergency Treatment of Schizophrenic Patients (NCT00249171) | Janssen Pharmaceutica N.V., Belgium | 2001-06-01 |
| Sensorimotor Gating in Schizophrenia (NCT00561561) | Emory University | 2001-06-01 |
| Clinical Trial of Dipyridamole in Schizophrenia (NCT00349973) | University of Maryland, Baltimore | 2001-05-01 |
| A Study of the Effectiveness and Safety of Risperidone in the Treatment of Adolescents With Schizophrenia (NCT00246285) | Johnson & Johnson Pharmaceutical Research & Development, L.L.C. | 2001-04-01 |
| A Long Term Study of Clozapine in Patients With Treatment-resistant Schizophrenia (NCT00154258) | Novartis | 2001-04-01 |
| The Efficacy and Safety of Risperidone in the Treatment of Adolescents With Schizophrenia (NCT00034749) | Johnson & Johnson Pharmaceutical Research & Development, L.L.C. | 2001-04-01 |
| Enhancing the Outcome of Skills Training for People With Schizophrenia (NCT00069433) | New York State Psychiatric Institute | 2001-04-01 |
| The Assessment of a Weight-Gain Agent for the Treatment of Olanzapine-Associated Anti-Obesity Agent in Patients With Schizophrenia, Schizophreniform Disorder, Schizoaffective Disorder, and Bipolar I Disorder (NCT00044187) | Eli Lilly and Company | 2001-04-01 |
| The Partners Genetics Collaborative Study of Schizophrenia (NCT00319904) | Massachusetts General Hospital | 2001-03-01 |
| Online Family Support and Education for Schizophrenia (NCT00046085) | University of California, Los Angeles | 2001-03-01 |
| A Study Comparing Three Strategies to Switch Patients With Schizophrenia or Schizoaffective Disorder to Risperidone After Unsuccessful Treatment With Olanzapine. (NCT00378183) | Janssen, LP | 2001-02-01 |
| Early Pharmacological and Psychological Intervention for Late Prodromal States of Psychosis (NCT00204061) | University of Cologne | 2001-01-01 |
| Clinical Estradiol Trial in Women With Schizophrenia (NCT00206570) | Bayside Health | 2001-01-01 |
| Psychological Intervention for Persons in the Early Initial Prodromal State (NCT00204087) | University of Cologne | 2001-01-01 |
| Electroconvulsive Therapy in Clozapine Refractory Schizophrenia (NCT00042224) | Northwell Health | 2000-12-01 |
| CATIE- Schizophrenia Trial (NCT00014001) | National Institute of Mental Health (NIMH) | 2000-12-01 |
| Treatment of Neuroleptic Induced Acute Akathisia With Trazodone (NCT00659919) | BeerYaakov Mental Health Center | 2000-11-01 |
| A Study Comparing the Efficacy of Long-acting Injectable Risperidone and Olanzapine Tablets in the Treatment of Patients With Schizophrenia or Schizoaffective Disorder (NCT00236457) | Johnson & Johnson Pharmaceutical Research & Development, L.L.C. | 2000-11-01 |
| One Year Drug Treatment in First-Episode Schizophrenia (NCT00159081) | Heinrich-Heine University, Duesseldorf | 2000-11-01 |
| Cognitive Adaptive Training for Improving Medication Adherence, Symptoms, and Function in People With Schizophrenia (NCT00455663) | The University of Texas Health Science Center at San Antonio | 2000-11-01 |
| Pfizer/IVGTT/Ziprasidone/Olanzapine (NCT00205725) | Washington University School of Medicine | 2000-11-01 |
| Treatment of Schizophrenia and Comorbid Cannabis Use Disorder: Comparing Clozapine to Treatment-as-Usual (NCT00498550) | Dartmouth-Hitchcock Medical Center | 2000-10-01 |
| Work Activity Augmented by Cognitive Rehabilitation for Schizophrenia (NCT00430560) | VA Office of Research and Development | 2000-10-01 |
| Antipsychotic Response in Schizophrenia (NCT00018668) | US Department of Veterans Affairs | 2000-10-01 |
| Risperidone and Olanzapine for the Schizophrenic Patients With Neuroleptic-Induced Acute Dystonia or Parkinsonism (NCT00331825) | Taoyuan Psychiatric Center, Ministry of Health and Welfare, Executive Yuan, R.O.C. Taiwan | 2000-07-01 |
| Janssen - Glucose Regulation/Risp/Olanz (NCT00205738) | Washington University School of Medicine | 2000-07-01 |
| Recovery Therapy Trial (NCT00239122) | Melbourne Health | 2000-06-01 |
| Comparative Study of Aripiprazole and Olanzapine in the Treatment of Patients With Acute Schizophrenia (NCT00712686) | Otsuka Pharmaceutical Development & Commercialization, Inc. | 2000-06-01 |
| Supported Employment and Skills Training in Conjunction With Pharmacotherapy in Schizophrenia Patients (NCT00183625) | University of California, Los Angeles | 2000-06-01 |
| Olanzapine Versus Clozapine in Treatment Refractory Schizophrenia (NCT00179231) | Vanderbilt University | 2000-05-01 |
| Cognitive - Behavioral Therapy (NCT00018629) | US Department of Veterans Affairs | 2000-05-01 |
| Glycine to Treat Psychotic Disorders in Children (NCT00005658) | National Institute of Mental Health (NIMH) | 2000-05-01 |
| Cognitive Training and Enhanced Supported Employment in Schizophrenia (NCT00339170) | Yale University | 2000-04-01 |
| Magnetic Resonance Imaging (MRI) of Neuropsychiatric Patients and Healthy Volunteers (NCT00004571) | National Institute of Mental Health (NIMH) | 2000-02-17 |
| A Long Term Study of Safety for Long Acting Injectable Risperidone in Patients With Schizophrenia or Schizoaffective Disorder. (NCT00558298) | Janssen, LP | 2000-02-01 |
| Effects of Risperidone and Olanzapine on Patients With Schizophrenia, Schizoaffective Disorder, Major Depression or Bipolar Disorder (NCT00179062) | Vanderbilt University | 2000-02-01 |
| Guanfacine Adjunctive Treatment to Atypical Antipsychotics for Cognitive Dysfunction in Schizophrenia (NCT00469664) | Research Foundation for Mental Hygiene, Inc. | 2000-02-01 |
| A Comparison of the Effectiveness and Safety of Injectable Risperidone With That of Risperidone Tablets in the Treatment of Patients With Chronic Schizophrenia (NCT00249223) | Janssen Pharmaceutica N.V., Belgium | 2000-01-01 |
| Exploring the Comorbidity Between Mental Disorders and General Medical Conditions (NCT03847753) | University of Aarhus | 2000-01-01 |
| Adjunctive Treatment for Decreasing Symptoms of Schizophrenia (NCT00222235) | University of Maryland, Baltimore | 2000-01-01 |
| Repetitive Transcranial Magnetic Stimulation for "Voices" (NCT00004980) | Yale University | 1999-12-01 |
| A Study of Long-acting Injectable Risperidone in the Treatment of Patients With Schizophrenia or Schizoaffective Disorder (NCT00210691) | Johnson & Johnson Pharmaceutical Research & Development, L.L.C. | 1999-12-01 |
| A Study of the Effectiveness and Safety of Long-acting Injectable Risperidone Versus Placebo in the Treatment of Patients With Schizophrenia (NCT00253136) | Janssen, LP | 1999-11-01 |
| Electrophysiology and Blood Flow in Patients With Schizophrenia and Their Siblings (NCT00001921) | National Institute of Mental Health (NIMH) | 1999-09-21 |
| Risperidone Alone Vs. Risperidone Plus Valproate in the Treatment of Patients With Schizophrenia and Hostility (NCT00308360) | Nathan Kline Institute for Psychiatric Research | 1999-09-01 |
| Eye Blink Response in Healthy Volunteers and Adults With Schizophrenia (NCT00001920) | National Institute of Mental Health (NIMH) | 1999-08-30 |
| Clozapine and Olanzapine Treatment of Aggression (NCT01123408) | Nathan Kline Institute for Psychiatric Research | 1999-06-01 |
| Improving Work Outcome in People With Recent-onset Schizophrenia (NCT00203788) | University of California, Los Angeles | 1999-05-01 |
| Alcoholism and Schizophrenia: Effects of Clozapine (NCT00169026) | Dartmouth-Hitchcock Medical Center | 1999-05-01 |
| Switching Antipsychotics: Abrupt Discontinuation Versus Overlap (NCT02640300) | Centre for Addiction and Mental Health | 1999-05-01 |
| Improving Outcome in Schizophrenia Through Identification of Genetic Risk Factors (NCT00178932) | Northwestern University | 1998-11-01 |
| Treatment for First-Episode Schizophrenia (NCT00000374) | Northwell Health | 1998-09-01 |
| Safety and Effectiveness of Sustained Release Bupropion in Treating Individuals With Schizophrenia Who Smoke (NCT00307203) | National Institute on Drug Abuse (NIDA) | 1998-08-01 |
| Effectiveness of Clozapine Versus Olanzapine for Treatment-resistant Schizophrenia (NCT00169065) | Harvard Medical School (HMS and HSDM) | 1998-08-01 |
| 5HT3 Antagonism and Auditory Gating in Schizophrenia (NCT00018850) | US Department of Veterans Affairs | 1998-06-01 |
| I-123 Brain Studies of Serotonin Metabolism in Psychiatric Patients and Normal Volunteers (NCT00001771) | National Institute of Mental Health (NIMH) | 1998-05-01 |
| Brief Hospitalization for Schizophrenia: Strategies to Improve Treatment Outcome (NCT00018837) | US Department of Veterans Affairs | 1998-04-01 |
| A Follow-on Study of the Long-Term Safety of Aripiprazole in Patients With Chronic Schizophrenia (NCT02435836) | Otsuka Pharmaceutical Development & Commercialization, Inc. | 1998-04-01 |
| Self-Management Therapy for Youth With Schizophrenia (NCT00000387) | National Institute of Mental Health (NIMH) | 1998-04-01 |
| To Determine if Olanzapine is More Cost Effective Than Haloperidol for the Treatment of Schizophrenia (NCT00007774) | US Department of Veterans Affairs | 1998-03-01 |
| Glycine and D-Cycloserine in Schizophrenia (NCT00000372) | Massachusetts General Hospital | 1998-03-01 |
| Dopaminergic, Functional, Structural, and Cognitive Disturbances in First-episode Schizophrenia (NCT00206960) | Birte Glenthoj | 1998-01-01 |