Page last updated: 2024-11-05

zonisamide and Psychoses

zonisamide has been researched along with Psychoses in 7 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.

Research Excerpts

ExcerptRelevanceReference
"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])."9.16Assessment 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)
" Since psychiatric adverse effects, including mania, psychosis, and suicidal ideation, have been associated with its use, it was suggested that the presence of antecedent psychiatric disorders is an important factor associated with the discontinuation of zonisamide therapy in patients with epilepsy."5.39Psychiatric adverse effects of zonisamide in patients with epilepsy and mental disorder comorbidities. ( Cavanna, AE; Seri, S, 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])."5.16Assessment 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)
"Both the prevalence of treatment for epilepsy and of treatment for psychosis was 0."1.72Bidirectionality of antiseizure and antipsychotic treatment: A population-based study. ( Bakken, IJ; Bråthen, G; Brodtkorb, E; Landmark, CJ; Morken, G; Revdal, E, 2022)
" Since psychiatric adverse effects, including mania, psychosis, and suicidal ideation, have been associated with its use, it was suggested that the presence of antecedent psychiatric disorders is an important factor associated with the discontinuation of zonisamide therapy in patients with epilepsy."1.39Psychiatric adverse effects of zonisamide in patients with epilepsy and mental disorder comorbidities. ( Cavanna, AE; Seri, S, 2013)

Research

Studies (7)

TimeframeStudies, this research(%)All Research%
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's1 (14.29)29.6817
2010's5 (71.43)24.3611
2020's1 (14.29)2.80

Authors

AuthorsStudies
Revdal, E1
Morken, G1
Bakken, IJ1
Bråthen, G1
Landmark, CJ1
Brodtkorb, E1
Cavanna, AE1
Seri, S1
Farooq, MU1
Moore, PW1
Bhatt, A1
Aburashed, R1
Kassab, MY1
Sato, S1
Mizukami, K1
Asada, T1
López-Díaz, LM1
Martínez Pérez-Balsa, A1
Vadillo-Olmo, FJ1
Hoffmann, VP1
Case, M1
Jacobson, JG1
Noguchi, T1
Fukatsu, N1
Kato, H1
Oshima, T1
Kanemoto, K1

Clinical Trials (1)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
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 3199 participants (Actual)Interventional2006-11-30Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

Change From Baseline to Endpoint in Weight

(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)

Interventionkilograms (Least Squares Mean)
Olanzapine2.76
Olanzapine + Amantadine2.40
Olanzapine + Metformin0.65

Change From Baseline to Endpoint in Brief Psychiatric Rating Scale (BPRS) Total Score

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)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline
Olanzapine48.24-13.89
Olanzapine + Amantadine45.90-9.90
Olanzapine + Metformin47.00-9.72

Change From Baseline to Endpoint in Clinical Global Impression - Severity Scale (CGI-S)

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)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline
Olanzapine4.06-0.98
Olanzapine + Amantadine4.03-0.72
Olanzapine + Metformin4.00-0.79

Change From Baseline to Endpoint in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score

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)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline
Olanzapine12.76-6.39
Olanzapine + Amantadine14.22-4.12
Olanzapine + Metformin15.40-4.36

Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks

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)

,
Interventioncorrelation (Number)
EI: DisinhibitionEI: Cognitive RestraintEI: HungerFCI: 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-0.034-0.273-0.1500.013-0.0190.0510.0220.039
22 Weeks0.285-0.0380.148-0.0640.0470.043-0.008-0.000

Mean Change From Baseline to Endpoint in Fasting Glucose

(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)

,,
Interventionmillimole per Liter (mmol/L) (Mean)
BaselineChange from Baseline
Olanzapine5.320.26
Olanzapine + Amantadine5.250.10
Olanzapine + Metformin5.280.01

Mean Change From Baseline to Endpoint in Fasting High Density Lipoprotein (HDL) Cholesterol

(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)

,,
Interventionmillimole per liter (mmol/L) (Mean)
BaselineChange from Baseline
Olanzapine1.25-0.00
Olanzapine + Amantadine1.26-0.11
Olanzapine + Metformin1.22-0.08

Mean Change From Baseline to Endpoint in Fasting Low Density Lipoprotein (LDL) Cholesterol

(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)

,,
Interventionmillimole per Liter (mmol/L) (Mean)
BaselineChange from Baseline
Olanzapine3.020.16
Olanzapine + Amantadine3.06-0.04
Olanzapine + Metformin2.91-0.02

Mean Change From Baseline to Endpoint in Fasting Total Cholesterol

(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)

,,
Interventionmillimole per Liter (mmol/L) (Mean)
BaselineChange from Baseline
Olanzapine5.010.36
Olanzapine + Amantadine5.030.01
Olanzapine + Metformin4.91-0.08

Mean Change From Baseline to Endpoint in Fasting Triglycerides

(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)

,,
Interventionmillimoles per Liter (mmol/L) (Mean)
BaselineChange from Baseline
Olanzapine1.580.33
Olanzapine + Amantadine1.610.35
Olanzapine + Metformin1.680.06

Mean Change From Baseline to Endpoint in Hemoglobin A1c

(NCT00401973)
Timeframe: Baseline to endpoint (22 weeks)

,,
Interventionpercent hemoglobin A1c (Mean)
BaselineChange from Baseline
Olanzapine5.510.09
Olanzapine + Amantadine5.480.10
Olanzapine + Metformin5.53-0.03

Reviews

1 review available for zonisamide and Psychoses

ArticleYear
Therapeutic role of zonisamide in neuropsychiatric disorders.
    Mini reviews in medicinal chemistry, 2008, Volume: 8, Issue:10

    Topics: Adult; Animals; Anticonvulsants; Child; Clinical Trials as Topic; Epilepsy; Humans; Isoxazoles; Psyc

2008

Trials

1 trial available for zonisamide and Psychoses

ArticleYear
Assessment of treatment algorithms including amantadine, metformin, and zonisamide for the prevention of weight gain with olanzapine: a randomized controlled open-label study.
    The Journal of clinical psychiatry, 2012, Volume: 73, Issue:2

    Topics: Adolescent; Adult; Aged; Algorithms; Amantadine; Antipsychotic Agents; Benzodiazepines; Clinical Pro

2012

Other Studies

5 other studies available for zonisamide and Psychoses

ArticleYear
Bidirectionality of antiseizure and antipsychotic treatment: A population-based study.
    Epilepsy & behavior : E&B, 2022, Volume: 136

    Topics: Anticonvulsants; Antipsychotic Agents; Epilepsy; Humans; Levetiracetam; Psychotic Disorders; Zonisam

2022
Psychiatric adverse effects of zonisamide in patients with epilepsy and mental disorder comorbidities.
    Epilepsy & behavior : E&B, 2013, Volume: 29, Issue:2

    Topics: Adolescent; Adult; Anticonvulsants; Child; Comorbidity; Electroencephalography; Epilepsy; Female; Hu

2013
Successful treatment of extrapyramidal and psychotic symptoms with zonisamide in a patient with dementia with Lewy bodies.
    Progress in neuro-psychopharmacology & biological psychiatry, 2010, Aug-16, Volume: 34, Issue:6

    Topics: Aged; Basal Ganglia Diseases; Female; Humans; Isoxazoles; Lewy Body Disease; Psychotic Disorders; Tr

2010
[Psychosis due to zonisamide: an infrequent case].
    Revista de neurologia, 2010, Sep-16, Volume: 51, Issue:6

    Topics: Aged; Anticonvulsants; Humans; Isoxazoles; Psychotic Disorders; Zonisamide

2010
Impact of antiepileptic drugs on genesis of psychosis.
    Epilepsy & behavior : E&B, 2012, Volume: 23, Issue:4

    Topics: Adolescent; Adult; Anticonvulsants; Epilepsy, Complex Partial; Female; Follow-Up Studies; Humans; In

2012