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Effects of Gene Polymorphisms on Metabolic Features in Clozapine-treated Patients With Schizophrenia

Effects of Gene Polymorphisms on Metabolic Features in Clozapine-treated Patients With Schizophrenia

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01324167
Enrollment
80
Registered
2011-03-28
Start date
2010-05-31
Completion date
2011-04-30
Last updated
2011-03-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizoaffective Disorder, Schizophrenia

Keywords

schizophrenia, schizoaffective disorder

Brief summary

The investigators would like to know the association of gene polymorphisms and metabolic adversities in clozapine-treated patients with schizophrenia in Taiwan.

Detailed description

The atypical antipsychotics, such as olanzapine, risperidone, quetiapine, and ziprasidone, are effective in treating both the positive and negative symptoms in schizophrenia (Kelleher et al., 2002). However, atypical antipsychotics have been linked to several forms of morbidity, including obesity, hyperlipidemia, and type 2 diabetes mellitus (DM) (Bergman and Ader, 2005; Jin et al., 2004; Melkersson and Dahl, 2004). Compared with the general population, life expectancy in schizophrenic patients is shorter by as much as 20%, attributable to higher rates of suicide, accidental deaths, and natural causes such as cardiovascular disease and DM (Harris and Barraclough, 1998). Several studies have suggested that these metabolic abnormalities may lead to a greater vulnerability to cardiovascular disease and thus may contribute to the excessive mortality among schizophrenic patients.

Interventions

None listed

Sponsors

Taipei Medical University WanFang Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* fulfilled DSM-IV criteria of schizophrenia or schizoaffective disorder * 18-65 year of age * receiving clozapine for at least 6 months

Exclusion criteria

* diabetes mellitus patients

Countries

Taiwan

Contacts

Primary ContactChun-Hsin Chen, MD
chunhsin57@yahoo.com.tw886-2-29307930

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026