| NCT Number | Conditions | Interventions | Sponsor/Collaborators | Phases | Start Date | Last Updated |
| NCT00203450 | Obesity | Drug: Zonegran|Drug: Placebo | Tuscaloosa Research & Education Advancement Corporation|Eisai Inc. | Phase 4 | 2003-05-01 | 2012-08-30 |
| NCT01765608 | Sleep Apnea|Obstructive Sleep Apnea|Obesity | Drug: Zonisamide|Drug: Placebo|Device: nCPAP | G枚teborg University|Eisai Inc. | Phase 2 | 2010-03-01 | 2014-02-19 |
| NCT01161966 | Healthy | Drug: Zonisamide|Drug: Zonegran | Dr. Reddy's Laboratories Limited | Phase 1 | 2005-01-01 | 2010-07-13 |
| NCT01161979 | Healthy | Drug: Zonisamide|Drug: Zonegran | Dr. Reddy's Laboratories Limited | Phase 1 | 2005-01-01 | 2010-07-13 |
| NCT01685996 | Nicotine Dependence | Drug: zonisamide|Drug: placebo | Johns Hopkins University | Phase 1|Phase 2 | 2012-09-01 | 2014-01-29 |
| NCT01566370 | Alcohol Use Disorders|Bipolar Disorder | Drug: Zonisamide|Drug: Placebo | Yale University|National Institute on Alcohol Abuse and Alcoholism (NIAAA) | Phase 2 | 2012-05-01 | 2016-11-17 |
| NCT01766128 | Parkinson Disease | Drug: Zonisamide | Mazandaran University of Medical Sciences | Phase 2|Phase 3 | 2013-02-01 | 2013-01-09 |
| NCT00406692 | Alcoholism | Drug: Zonisamide | Boston University | Phase 2 | 2006-11-01 | 2010-05-06 |
| NCT00223743 | Essential Tremor | Drug: Zonisamide | VA Greater Los Angeles Healthcare System|Ralph M. Parsons Foundation | Phase 2 | 2004-11-01 | 2012-06-20 |
| NCT00685139 | Healthy | Drug: Zonisamide 100 mg Capsule|Drug: Zonisamide (Zonegran) 100 mg Capsule | Mutual Pharmaceutical Company, Inc. | Phase 1 | 2005-01-01 | 2010-01-11 |
| NCT00687167 | Healthy | Drug: Zonisamide 100 mg Capsule|Drug: Zonisamide (Zonegran) 100 mg Capsule | Mutual Pharmaceutical Company, Inc. | Phase 1 | 2005-01-01 | 2010-01-11 |
| NCT00616343 | Essential Tremor | Drug: Zonisamide | Loma Linda University | | 2003-06-01 | 2014-07-16 |
| NCT01630057 | Partial Seizures | Drug: Adjunctive Zonisamide|Drug: Replacement with Zonisamide | Eisai Inc. | Phase 4 | 2009-09-01 | 2014-07-11 |
| NCT01283256 | Partial, Generalized and Combined Seizures | Drug: zonisamide | Eisai Inc. | Phase 4 | 2011-01-01 | 2014-01-23 |
| NCT02368431 | Alcohol Use Disorder | Drug: Zonisamide|Drug: Placebo | VA Office of Research and Development | Phase 3 | 2015-03-01 | 2016-09-21 |
| NCT00692003 | Epilepsy | Drug: Zonisamide|Drug: Placebo | Eisai Limited|Eisai Inc. | Phase 3 | 2008-08-01 | 2017-02-01 |
| NCT00275834 | Obesity | Drug: Zonisamide | Duke University|National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) | 2006-01-01 | 2016-11-15 |
| NCT00566254 | Epilepsy; Paediatric Partial Onset Seizures | Drug: Zonisamide|Drug: Placebo | Eisai Inc. | Phase 3 | 2008-12-01 | 2013-05-09 |
| NCT00327717 | Partial Seizures | Drug: Zonisamide|Drug: Placebo | Eisai Inc. | Phase 3 | 2006-09-01 | 2014-08-14 |
| NCT00595556 | Alcoholism|Alcohol Abuse|Alcohol Dependence | Drug: zonisamide|Drug: Placebo | UConn Health|National Institute on Alcohol Abuse and Alcoholism (NIAAA)|National Center for Research Resources (NCRR) | Phase 4 | 2006-07-01 | 2010-09-28 |
