zonisamide has been researched along with Schizophrenia in 3 studies
Zonisamide: A benzisoxazole and sulfonamide derivative that acts as a CALCIUM CHANNEL blocker. It is used primarily as an adjunctive antiepileptic agent for the treatment of PARTIAL SEIZURES, with or without secondary generalization.
zonisamide : A 1,2-benzoxazole compound having a sulfamoylmethyl substituent at the 3-position.
Schizophrenia: A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior.
| Excerpt | Relevance | Reference |
|---|---|---|
| "In this 10-week, double blind randomized placebo controlled clinical trial, forty one patients with schizophrenia diagnosed according to DSM-IV-TR criteria who were taking a stable dose of atypical antipsychotic are allocated into one of the two groups of zonisamide or placebo group." | 9.17 | The effect of zonisamide on antipsychotic-associated weight gain in patients with schizophrenia: a randomized, double-blind, placebo-controlled clinical trial. ( Ghanizadeh, A; Nikseresht, MS; Sahraian, A, 2013) |
| "Outpatients with schizophrenia or schizoaffective disorder (DSM-IV-TR criteria) were randomly assigned to olanzapine alone (n = 50), olanzapine plus algorithm A (olanzapine + A [amantadine 200 mg/d with possible switches to metformin 1,000-1,500 mg/d and then to zonisamide 100-400 mg/d; n = 76]), or olanzapine plus algorithm B (olanzapine + B [metformin 1,000-1,500 mg/d with possible switches to amantadine 200 mg/d and then to zonisamide 100-400 mg/d; n = 73])." | 9.16 | Assessment of treatment algorithms including amantadine, metformin, and zonisamide for the prevention of weight gain with olanzapine: a randomized controlled open-label study. ( Case, M; Hoffmann, VP; Jacobson, JG, 2012) |
| "Weight gain is commonly observed with olanzapine treatment." | 9.16 | A randomized, placebo-controlled study of zonisamide to prevent olanzapine-associated weight gain. ( Guerdjikova, AI; Keck, PE; Martens, B; McCoy, J; McElroy, SL; Moeller, D; Mori, N; Winstanley, E, 2012) |
| "In this 10-week, double blind randomized placebo controlled clinical trial, forty one patients with schizophrenia diagnosed according to DSM-IV-TR criteria who were taking a stable dose of atypical antipsychotic are allocated into one of the two groups of zonisamide or placebo group." | 5.17 | The effect of zonisamide on antipsychotic-associated weight gain in patients with schizophrenia: a randomized, double-blind, placebo-controlled clinical trial. ( Ghanizadeh, A; Nikseresht, MS; Sahraian, A, 2013) |
| "Outpatients with schizophrenia or schizoaffective disorder (DSM-IV-TR criteria) were randomly assigned to olanzapine alone (n = 50), olanzapine plus algorithm A (olanzapine + A [amantadine 200 mg/d with possible switches to metformin 1,000-1,500 mg/d and then to zonisamide 100-400 mg/d; n = 76]), or olanzapine plus algorithm B (olanzapine + B [metformin 1,000-1,500 mg/d with possible switches to amantadine 200 mg/d and then to zonisamide 100-400 mg/d; n = 73])." | 5.16 | Assessment of treatment algorithms including amantadine, metformin, and zonisamide for the prevention of weight gain with olanzapine: a randomized controlled open-label study. ( Case, M; Hoffmann, VP; Jacobson, JG, 2012) |
| "Weight gain is commonly observed with olanzapine treatment." | 5.16 | A randomized, placebo-controlled study of zonisamide to prevent olanzapine-associated weight gain. ( Guerdjikova, AI; Keck, PE; Martens, B; McCoy, J; McElroy, SL; Moeller, D; Mori, N; Winstanley, E, 2012) |
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 0 (0.00) | 18.7374 |
| 1990's | 0 (0.00) | 18.2507 |
| 2000's | 0 (0.00) | 29.6817 |
| 2010's | 3 (100.00) | 24.3611 |
| 2020's | 0 (0.00) | 2.80 |
| Authors | Studies |
|---|---|
| Ghanizadeh, A | 1 |
| Nikseresht, MS | 1 |
| Sahraian, A | 1 |
| Hoffmann, VP | 1 |
| Case, M | 1 |
| Jacobson, JG | 1 |
| McElroy, SL | 1 |
| Winstanley, E | 1 |
| Mori, N | 1 |
| Martens, B | 1 |
| McCoy, J | 1 |
| Moeller, D | 1 |
| Guerdjikova, AI | 1 |
| Keck, PE | 1 |
| Trial | Phase | Enrollment | Study Type | Start Date | Status | ||
|---|---|---|---|---|---|---|---|
| The Assessment of the Safety, Efficacy, and Practicality of an Algorithm Including Amantadine, Metformin and Zonisamide for the Prevention of Olanzapine-Associated Weight Gain in Outpatients With Schizophrenia[NCT00401973] | Phase 3 | 199 participants (Actual) | Interventional | 2006-11-30 | Completed | ||
| A Double-Blind, Placebo-Controlled Study of Zonisamide to Prevent Olanzapine-Associated Weight Gain[NCT00363376] | Phase 3 | 42 participants (Actual) | Interventional | 2008-01-31 | Completed | ||
| [information is prepared from clinicaltrials.gov, extracted Sep-2024] | |||||||
(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | kilograms (Least Squares Mean) |
|---|---|
| Olanzapine | 2.76 |
| Olanzapine + Amantadine | 2.40 |
| Olanzapine + Metformin | 0.65 |
The BPRS is an 18-item clinician-administered scale used to assess the degree of severity of a subject's general psychopathological symptoms. Each item is rated on a scale from 1 (symptom not present) to 7 (symptom extremely severe). The BPRS total score ranges from 18 to 126. (NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | units on a scale (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 48.24 | -13.89 |
| Olanzapine + Amantadine | 45.90 | -9.90 |
| Olanzapine + Metformin | 47.00 | -9.72 |
Measures severity of illness at the time of assessment compared with start of treatment. Scores range from 1 (normal, not at all ill) to 7 (among the most extremely ill patients). (NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | units on a scale (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 4.06 | -0.98 |
| Olanzapine + Amantadine | 4.03 | -0.72 |
| Olanzapine + Metformin | 4.00 | -0.79 |
The MADRS is a rating scale for severity of depressive mood symptoms. The MADRS has a 10-item checklist. Items are rated on a scale of 0-6, for a total score range of 0 (low severity of depressive symptoms) to 60 (high severity of depressive symptoms). (NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | units on a scale (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 12.76 | -6.39 |
| Olanzapine + Amantadine | 14.22 | -4.12 |
| Olanzapine + Metformin | 15.40 | -4.36 |
To understand the drivers of weight gain as indicated by the correlation between weight changes and changes in the Eating Inventory (EI) and Food Craving Inventory (FCI). The EI is a 51-item inventory that measures dietary restraint, disinhibition, and perceived hunger. The FCI is a 28-item instrument measuring the frequency over the past month of general cravings and cravings for specific types of foods, namely: high fats, sweets, carbohydrates/starches, and fast-food fats. Correlations were computed on the combined treatment groups. (NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | correlation (Number) | |||||||
|---|---|---|---|---|---|---|---|---|
| EI: Disinhibition | EI: Cognitive Restraint | EI: Hunger | FCI: Carbohydrates/Starches (N=186, N=141) | FCI: Fast Food Fats (N=188, N=140) | FCI: High Fats (N=186, N=138) | FCI: Sweets (N=187, N=140) | FCI: Total Score (N=184, N=137) | |
| 2 Weeks | -0.034 | -0.273 | -0.150 | 0.013 | -0.019 | 0.051 | 0.022 | 0.039 |
| 22 Weeks | 0.285 | -0.038 | 0.148 | -0.064 | 0.047 | 0.043 | -0.008 | -0.000 |
(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | millimole per Liter (mmol/L) (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 5.32 | 0.26 |
| Olanzapine + Amantadine | 5.25 | 0.10 |
| Olanzapine + Metformin | 5.28 | 0.01 |
(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | millimole per liter (mmol/L) (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 1.25 | -0.00 |
| Olanzapine + Amantadine | 1.26 | -0.11 |
| Olanzapine + Metformin | 1.22 | -0.08 |
(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | millimole per Liter (mmol/L) (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 3.02 | 0.16 |
| Olanzapine + Amantadine | 3.06 | -0.04 |
| Olanzapine + Metformin | 2.91 | -0.02 |
(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | millimole per Liter (mmol/L) (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 5.01 | 0.36 |
| Olanzapine + Amantadine | 5.03 | 0.01 |
| Olanzapine + Metformin | 4.91 | -0.08 |
(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | millimoles per Liter (mmol/L) (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 1.58 | 0.33 |
| Olanzapine + Amantadine | 1.61 | 0.35 |
| Olanzapine + Metformin | 1.68 | 0.06 |
(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)
| Intervention | percent hemoglobin A1c (Mean) | |
|---|---|---|
| Baseline | Change from Baseline | |
| Olanzapine | 5.51 | 0.09 |
| Olanzapine + Amantadine | 5.48 | 0.10 |
| Olanzapine + Metformin | 5.53 | -0.03 |
3 trials available for zonisamide and Schizophrenia
| Article | Year |
|---|---|
The effect of zonisamide on antipsychotic-associated weight gain in patients with schizophrenia: a randomized, double-blind, placebo-controlled clinical trial.
Topics: Adult; Antipsychotic Agents; Body Mass Index; Double-Blind Method; Female; Follow-Up Studies; Humans | 2013 |
Assessment of treatment algorithms including amantadine, metformin, and zonisamide for the prevention of weight gain with olanzapine: a randomized controlled open-label study.
Topics: Adolescent; Adult; Aged; Algorithms; Amantadine; Antipsychotic Agents; Benzodiazepines; Clinical Pro | 2012 |
A randomized, placebo-controlled study of zonisamide to prevent olanzapine-associated weight gain.
Topics: Adult; Anticonvulsants; Antipsychotic Agents; Benzodiazepines; Bipolar Disorder; Cognition Disorders | 2012 |