| Not Yet Recruiting | Cognitive Strategies in Early Psychosis 2 NCT07263022 | University of Minnesota | Phase 3 |
| Recruiting | Improving Cognition Through Telehealth Aerobic Exercise and Cognitive Training After a First Schizophrenia Epi NCT05890183 | University of California, Los Angeles | N/A |
| Unknown | Minocycline Augmentation of Clozapine for Treatment Resistant Schizophrenia NCT02533232 | Pakistan Institute of Living and Learning | Phase 1 |
| Completed | The Effects of Kynurenine Aminotransferase Inhibition in People With Schizophrenia NCT04013555 | University of Maryland, Baltimore | Phase 1 / Phase 2 |
| Terminated | Aripiprazole Lauroxil for Preventing Psychotic Relapse After an Initial Schizophrenia Episode NCT04203056 | University of California, Los Angeles | Phase 4 |
| Completed | Targeting Physical Health in Schizophrenia: Physical Activity Can Enhance Life NCT03757988 | University of North Carolina, Chapel Hill | N/A |
| Completed | Study to Evaluate the Long-term Safety, Tolerability, and Durability of Treatment Effect of ALKS 3831 NCT03201757 | Alkermes, Inc. | Phase 3 |
| Completed | Enhancing Cognitive Training Through Exercise Following a First Schizophrenia Episode NCT02823041 | University of California, Los Angeles | N/A |
| Withdrawn | Clonazepam Effects on Brain Oscillations and Cognition in Schizophrenia NCT03061136 | Palo Alto Veterans Institute for Research | Phase 4 |
| Completed | Raloxifene Augmentation in Patients With a Schizophrenia Spectrum Disorder NCT03043820 | Iris Sommer | Phase 3 |
| Completed | RISE (Rehabilitation Intervention for People With Schizophrenia in Ethiopia) NCT02160249 | London School of Hygiene and Tropical Medicine | N/A |
| Completed | Electronic Cigarettes in Smokers With Mental Illness NCT02212041 | King's College London | N/A |
| Completed | Prospective Pharmacogenetic Testing and Clinical Outcomes in Patients With Early-Phase Psychosis NCT02566057 | Northwell Health | N/A |
| Terminated | Prednisolone Addition for Patients With Recent-onset Psychotic Disorder NCT02949232 | UMC Utrecht | Phase 4 |
| Completed | Integrated Metacognitive Therapy in First Episode Psychosis NCT02131116 | Indiana University | N/A |
| Completed | rTMS in First Episode Psychosis NCT02131129 | Indiana University | N/A |
| Completed | Pilot-trial of Emotion-focused Cognitive Behavior Therapy for Patients With Schizophrenia NCT02787122 | Philipps University Marburg | N/A |
| Unknown | Association of Amisulpride Response in Schizophrenia With Brain Image NCT02095938 | CHA University | Phase 4 |
| Completed | RCT of Methotrexate Added to Treatment As Usual in Schizophrenia NCT02074319 | Pakistan Institute of Living and Learning | Phase 1 |
| Completed | Enhancing Cognitive Training Through Exercise After a First Schizophrenia Episode NCT02267070 | University of California, Los Angeles | N/A |
| Completed | Simvastatin Addition for Patients With Recent-onset Schizophrenia NCT01999309 | Iris Sommer | Phase 3 |
| Completed | Naltrexone for Antipsychotic-Induced Weight Gain NCT01866098 | Yale University | N/A |
| Completed | Effectiveness of Adherence Therapy for Schizophrenia NCT01780116 | The Hong Kong Polytechnic University | Phase 1 / Phase 2 |
| Completed | Omega-3 Dietary Supplements in Schizophrenia NCT01786239 | Delbert Robinson | N/A |
| Terminated | Antipsychotic Effects on Brain Function in Schizophrenia NCT01913327 | University of California, San Francisco | Phase 4 |
| Terminated | Contrasting Group Therapy Methods for Psychosis NCT01764568 | University of British Columbia | N/A |
| Completed | Lifestyle Intervention for Diabetes and Weight Management in Psychosis NCT01828931 | Centre for Addiction and Mental Health | N/A |
| Completed | Study of Lurasidone in Treating Antipsychotic Naive or Quasi-Naive Children and Adolescents NCT01731119 | University of North Carolina, Chapel Hill | Phase 2 |
| Completed | Biomarkers in First Episode Schizophrenia NCT02033382 | NYU Langone Health | — |
| Completed | Efficacy and Safety of A-prexa Compared to Zyprexa in Patients With Schizophrenia NCT02137993 | HK inno.N Corporation | Phase 4 |
| Completed | Selective Estrogen Receptor Modulators (SERMs) - A Potential Treatment for Psychotic Symptoms of Schizophrenia NCT01481883 | The Alfred | Phase 4 |
| Completed | Optimization of Treatment and Management of Schizophrenia in Europe (OPTIMISE): Substudy Site Copenhagen NCT01555814 | Birte Glenthoj | N/A |
| Completed | Optimization of Treatment and Management of Schizophrenia in Europe NCT01248195 | Rene Kahn | Phase 4 |
| Completed | Brain Circuits in Schizophrenia and Smoking NCT01425684 | University of Maryland, Baltimore | — |
| Completed | Neural Oscillations as Genetic and Functional Biomarkers in Normal and Disease States NCT01425671 | University of Maryland, Baltimore | — |
| Completed | Multi-disciplinary Treatment for Patients Experiencing First Episode of Psychosis NCT01216891 | Research Foundation for Mental Hygiene, Inc. | N/A |
| Completed | Randomized Double Blind Placebo Control Study in Patients with Schizophrenia NCT01602029 | Pakistan Institute of Living and Learning | Phase 2 |
| Completed | An Integrated Program for the Treatment of First Episode of Psychosis NCT01321177 | Northwell Health | N/A |
| Completed | Prevention of Weight Gain in Early Psychoses NCT01075295 | Centre for Addiction and Mental Health | N/A |
| Completed | DECIFER: Depression and Citalopram In First Episode Recovery NCT01041274 | NYU Langone Health | Phase 4 |
| Completed | Efficacy of an Early Antipsychotic Switch in Case of Poor Initial Response to the Treatment of Schizophrenia NCT01029769 | Technical University of Munich | N/A |
| Completed | Second-Generation Antipsychotic Treatment Indication Effectiveness And Tolerability In Youth (Satiety) Study NCT01269710 | University of North Carolina, Chapel Hill | — |
| Completed | Minimizing Doses of Antipsychotic Medication in Older Patients With Schizophrenia. NCT00716755 | Centre for Addiction and Mental Health | N/A |
| Completed | Role of Anti-Inflammatory Agents in Patients With Schizophrenia NCT00929955 | Pakistan Institute of Living and Learning | Phase 1 |
| Completed | Pregnenolone Augmentation in the Treatment of Patients With Recent-Onset Schizophrenia NCT00847600 | Sha'ar Menashe Mental Health Center | Phase 4 |
| Unknown | Dopamine D2 and D3 Receptor Occupancy and Clinical Response in Older Patients With Schizophrenia NCT00825045 | Centre for Addiction and Mental Health | N/A |
| Completed | Recovery From Psychosis in Schizophrenia - The Impact of Cognitive-Behavioral Therapy NCT00791440 | New York State Psychiatric Institute | N/A |
| Terminated | Olanzapine Given in Combination With Zonisamide SR to Prevent Weight Gain in Schizophrenic Subjects NCT00734435 | Orexigen Therapeutics, Inc | Phase 2 |
| Terminated | Schizophrenic Patients in Integrated Care NCT00681629 | AstraZeneca | Phase 4 |
| Completed | Efficacy and Tolerability Study of Betahistine to Ameliorate Antipsychotic Associated Weight Gain NCT00709202 | Nathan Kline Institute for Psychiatric Research | Phase 2 |
| Completed | Validity of the Spanish Version of Subjective Well-being Under Neuroleptics Scale (SWN-K) in Patients With Sch NCT00749970 | AstraZeneca | — |
| Unknown | A German Multicenter Study on Toxoplasma Gondii in First-episode Schizophrenia NCT00686400 | Martin-Luther-Universität Halle-Wittenberg | — |
| Completed | An Efficacy and Safety Study of Risperidone Long-Acting Microspheres in Participants With Schizophrenia, Schiz NCT01855074 | Janssen-Cilag Ltd. | Phase 4 |
| Terminated | Anticholinergic Burden in Schizophrenia NCT00715377 | Centre for Addiction and Mental Health | N/A |
| Unknown | Donepezil Double Blind Trial for ECT Memory Disfunction NCT00465283 | BeerYaakov Mental Health Center | Phase 4 |
| Unknown | Development and Pilot Evaluation of Modified Cognitive Behavioural Therapy for Adolescents With Early Onset Ps NCT00465920 | University of Cologne | Phase 2 |
| Completed | Varenicline Adjunctive Treatment in Schizophrenia NCT00492349 | University of Maryland, Baltimore | Phase 4 |
| Unknown | Integrated Care in Psychotic Disorders With Severe Mental Illness NCT01888627 | Universitätsklinikum Hamburg-Eppendorf | N/A |
| Completed | Selective Estrogen Receptor Modulators - A Potential Treatment for Psychotic Symptoms of Schizophrenia NCT00361543 | The Alfred | Phase 4 |
| Completed | An Open-label Trial of Metformin for Weight Control of Pediatric Patients on Antipsychotic Medications. NCT00391261 | Cambridge Health Alliance | Phase 4 |
| Completed | Efficacy Study of Early Onset of Antipsychotic Drug Action in Schizophrenia NCT00337662 | Eli Lilly and Company | Phase 4 |
| Completed | Open-label Ziprasidone Study for Psychosis Treatment in Adolescents NCT00421954 | New York State Psychiatric Institute | Phase 3 |
| Terminated | Optimizing Response in Psychosis Study NCT00314327 | Northwell Health | Phase 4 |
| Completed | Body Mass Index (BMI) and Metabolic Changes Following Switch to Aripiprazole From Olanzapine, Risperidone and NCT00312598 | University of North Carolina, Chapel Hill | — |
| Completed | PROFILe3: Epidemiologic Survey in Patients With Schizophrenia or Schizoaffective Disorders NCT00399334 | Janssen-Cilag, S.A. | — |
| Completed | Study of Amantadine for Weight Stabilization During Olanzapine Treatment NCT00287352 | University of North Carolina, Chapel Hill | Phase 1 |
| Completed | Family-Directed Cognitive Adaptation Program for Individuals With Schizophrenia NCT00434980 | Beth Israel Deaconess Medical Center | N/A |
| Completed | A Trial Comparing Risperidone Long-Acting Injection With Oral Antipsychotic in the Treatment of Early Psychosi NCT00246259 | Janssen-Ortho Inc., Canada | Phase 4 |
| Completed | The Use of Selective Estrogen Receptor Modulators in the Treatment of Schizophrenia- a Pilot Study NCT00206557 | The Alfred | Phase 2 |
| Terminated | Study on the Safety of Risperidone on Obese or Overweight Patients With Schizophrenia NCT00511628 | Janssen-Cilag, S.A. | — |
| Completed | Clinical Trial of Dipyridamole in Schizophrenia NCT00349973 | University of Maryland, Baltimore | N/A |
| Completed | Clinical Estradiol Trial in Women With Schizophrenia NCT00206570 | Bayside Health | Phase 2 |