NCT01602029

Randomized Double Blind Placebo Control Study in Patients with Schizophrenia

Randomized Double Blind Placebo Controlled Study of Ondansetron and Simvastatis Added to Treatment As Usual in Patients with Schizophrenia

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 303 (actual)
• Sponsor: Pakistan Institute of Living and Learning · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Not accepted

Summary

Negative symptoms and cognitive deficits are two partially-related features of schizophrenia which have a major negative impact on social function and objective quality of life. Standard drug treatments have little impact on either and arguably no effect on primary negative symptoms. Social dysfunction has major economic consequences in both the developed and developing world. There is evidence that anti-inflammatory treatment may have beneficial effects in patients with schizophrenia.

Detailed description

Negative symptoms and cognitive deficits are two partially-related features of schizophrenia which have a major negative impact on social function and objective quality of life. Evidence indicates that anti-inflammatory treatment may have beneficial effects in schizophrenia. From our preliminary randomised double-blind placebo-controlled clinical trial in Pakistan and Brazil, it is indicated that addition of minocycline (an antibiotic and anti-inflammatory drug) for one year to treatment as usual (TAU) reduced negative symptoms and improved some cognitive measures (Chaudhry et al 2009). Statins are primarily HMG-CoA reductase inhibitors also anti-inflammatory agents and known to decrease C-reactive protein (CRP). Higher levels of CRP (\>0.50 mg/dl) are associated with marked negative symptoms and higher total PANSS scores in patients with schizophrenia. (Fan et al 2007) Ondansetron, a selective 5-hydroxytryptamine-3 antagonist, is quite commonly used as an antiemetic in cancer patients (Marty et al 1990). There are several small trials suggesting that ondansetron as an adjunct to antipsychotics is effective in improving negative symptoms and memory in patients suffering from schizophrenia (Ahkonzadeh et al 2009, Levkovitz et al 2005 and Zhang et al 2006). The Primary objective of this study is addition of ondansetron and /or simvastatin to TAU for patients with schizophrenia will result in improvement in negative symptoms The Secondary objectives include: * improvement in positive or other symptoms * social functioning * cognitive functions * additive effects of ondansetron and simvastatin

Conditions

• Schizophrenia
• Schizoaffective Disorder
• Psychosis Not Otherwise Specified
• Schizophreniform Disorder

Interventions

Type	Name	Description
DRUG	Ondansetron	ondansetron added to TAU Ondansetron will be administered in 8mg once daily dose
DRUG	Simvastatin	Simvastatin added to TAU Simvastatin 20mg taken as once daily dose
DRUG	Placebo	Placebo added to TAU
DRUG	Odansetron plus simvastatin	Ondansetron will be administered in 8mg once daily dose and Simvastatin 20mg taken as once daily dose

Timeline

• Start date: 2010-08-01
• Primary completion: 2013-06-01
• Completion: 2013-06-01
• First posted: 2012-05-18
• Last updated: 2024-12-10

Locations

3 sites across 1 country: Pakistan