- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT00672464
Cardio Risk of Acute Schizophrenia Olanzapine Duke (CRASOD)
Combined Treatment of Cardiovascular Risk Factors In Newly Admitted Patients With Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine And Matched Controls
Primary Objective: To compare added metformin and/or added simvastatin versus no intervention in reducing or eliminating increased cardiovascular risk (as estimated by elevation in non-HDL cholesterol levels) during the treatment of schizophrenia with olanzapine.
Secondary Objective(s): To compare added metformin and/or added simvastatin versus no intervention in reducing or eliminating increased cardiovascular risk (as estimated by elevation in triglyceride levels) during the treatment of schizophrenia with olanzapine. To compare added metformin and/or added simvastatin versus no intervention in reducing or eliminating increased cardiovascular risk (as estimated by C-reactive protein levels) during the treatment of schizophrenia with olanzapine
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
Olanzapine offers greater therapeutic antipsychotic benefit than the other non-clozapine antipsychotic medications available in the U.S., making it a desirable choice for the long-term maintenance treatment of patients with schizophrenia (Lieberman et al, 2005). Long-term compliance with an efficacious antipsychotic medication is fundamental to optimal therapeutic outcomes. Toward this goal, a long-acting injectable preparation of olanzapine will soon be available.
However, the long-term use of olanzapine has been limited by its substantial, un-wanted effects on metabolism that result in weight gain, increases in insulin resistance, increases in non-HDL-cholesterol, and increases in C-reactive protein (Lieberman et al, 2005; McEvoy et al, 2005;Meyer et al, 2008; McEvoy et al, in submission). Over the long term, insulin resistance contributes to the accelerated incidence of diabetes mellitus that has been observed among patients with schizophrenia since the availability of the atypical antipsychotic medication (Basu A, 2006). Over the long term, elevated non-HDL-cholesterol and increased inflammation contribute independently to the accelerated cardiovascular mortality that has been observed among patients with schizophrenia since the availability of the atypical antipsychotic medications (Saha et al, 2007, Capasso et al, 2007). Inflammation, as measured by C-reactive protein, provides added, independent predictive value of cardiovascular risk beyond that of measures of insulin resistance and elevated non-HDL-cholesterol.
Established strategies exist that may attenuate these unwanted effects of olanzapine on metabolism and inflammation. Metformin has been shown to reduce weight gain and insulin resistance in pre-diabetic, obese individuals without mental problems (Salpeper et al, 2008) and in patients treated with atypical antipsychotic medications (Wu et al, 2008). Statins have been shown to reduce non-HDL-cholesterol and cardiovascular morbidity and mortality (Lee et al, 2007). Both metformin and statins have been shown to reduce C-reactive protein (Bulcau et al, 2007).
We propose to implement a pilot study to estimate the effects sizes (for change in triglycerides, change in non-HDL-cholesterol, and change in CRP) of added metformin, added simvastatin, or added metformin and simvastatin, versus added no intervention in 120 newly-admitted, acutely psychotic, recently un-medicated patients with schizophrenia over 4 weeks of prospective treatment with olanzapine. We will also compare these patients (baseline values, in the not recently medicated state) to 40 age, race, and gender matched control subjects on fasting triglycerides, non-HDL-cholesterol, and CRP levels.
We will recruit newly admitted patients experiencing an acute psychotic relapse of schizophrenia (related to failure to take their prescribed antipsychotic medication). After baseline assessments and samplings have been completed, all patient will be treated with olanzapine zydis 15 mg QHS for 28 days. All patients will be randomized 1:1:1:1 to added metformin, added simvastatin, added metformin and simvastatin, or no intervention. All treatments will be open label. Repeated assessments of weight, non-HDL-cholesterol, triglycerides and C-reactive protein will be obtained. Subjects will remain as inpatients at JUH for the duration of the study.
Studietyp
Fas
- Fas 4
Kontakter och platser
Studieorter
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North Carolina
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Butner, North Carolina, Förenta staterna, 27509
- John Umstead Hospital
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Durham, North Carolina, Förenta staterna, 27705
- Duke University Medical Center
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- We will include patients who come to us free of antipsychotic medication, i.e., patients with chronic schizophrenia (with at least one prior psychiatric hospitalization) who have been off antipsychotic medication for at least 3 weeks and who are newly hospitalized for treatment of an acute psychotic relapse; these patients will be male or female, 18-60 years of age, meet DSM-IV criteria for schizophrenia, and have scores >=4 on at least two of the PANSS Positive subscale items.
Exclusion Criteria:
- We will exclude patients whose psychoses are predominantly affective in nature or explainable on the basis of substance abuse or a co-morbid medical condition, patients with diabetes mellitus, epilepsy, mental retardation, or organic mental syndromes, and patients currently taking metformin or a statin.
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Förebyggande
- Tilldelning: Randomiserad
- Interventionsmodell: Faktoriell uppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
---|---|
Aktiv komparator: Olanzapine only
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine
|
Olanzapine zydis 15 mg QHS for 28 days
|
Experimentell: Added Metformin
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine with Added Metformin
|
Olanzapine zydis 15 mg QHS for 28 days
Metformin capsules will be started at 500 mg twice a day (before breakfast and before dinner) for days 1-3, then 500 mg before breakfast and 1000 mg before dinner for days 4-7, and then 1000 mg twice a day thereafter.
|
Experimentell: Added Simvastatin
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine with Added Simvastatin
|
Olanzapine zydis 15 mg QHS for 28 days
Simvastatin will be started at 10 mg at bed time for the first week and 20 mg at bedtime thereafter.
|
Experimentell: Added Metf. + Simv.
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine with Added Metformin and Simvastatin
|
Olanzapine zydis 15 mg QHS for 28 days
Metformin capsules will be started at 500 mg twice a day (before breakfast and before dinner) for days 1-3, then 500 mg before breakfast and 1000 mg before dinner for days 4-7, and then 1000 mg twice a day thereafter.
Simvastatin will be started at 10 mg at bed time for the first week and 20 mg at bedtime thereafter.
|
Inget ingripande: Matched Controls
Matched Control Subjects by age, race, and gender
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
---|---|
To compare added metformin and/or added simvastatin versus no intervention in reducing or eliminating increased cardiovascular risk (as estimated by elevation in non-HDL cholesterol levels) during the treatment of schizophrenia with olanzapine.
Tidsram: 28 days
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28 days
|
Sekundära resultatmått
Resultatmått |
Tidsram |
---|---|
To compare added metformin and/or added simvastatin versus no intervention in reducing or eliminating increased cardiovascular risk during the treatment of schizophrenia with olanzapine.
Tidsram: 28 days
|
28 days
|
Samarbetspartners och utredare
Sponsor
Utredare
- Huvudutredare: Joseph P McEvoy, MD, Duke University Medical Center, Dep't. Psychiatry
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Förväntat)
Avslutad studie (Förväntat)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
- Mentala störningar
- Schizofrenispektrum och andra psykotiska störningar
- Schizofreni
- Psykotiska störningar
- Hypoglykemiska medel
- Läkemedels fysiologiska effekter
- Neurotransmittormedel
- Molekylära mekanismer för farmakologisk verkan
- Depressiva medel i centrala nervsystemet
- Autonoma agenter
- Agenter från det perifera nervsystemet
- Enzyminhibitorer
- Antimetaboliter
- Antiemetika
- Gastrointestinala medel
- Antikolesteremiska medel
- Hypolipidemiska medel
- Lipidreglerande medel
- Hydroximetylglutaryl-CoA-reduktashämmare
- Antipsykotiska medel
- Lugnande medel
- Psykotropa droger
- Serotoninupptagshämmare
- Neurotransmittorupptagshämmare
- Membrantransportmodulatorer
- Serotoninmedel
- Olanzapin
- Metformin
- Simvastatin
Andra studie-ID-nummer
- Pro00006916
- None (investigator sponsored)
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