We are updating the design of this site. Learn more.
Show more
ClinicalTrials.gov
ClinicalTrials.gov Menu

Cardio Risk of Acute Schizophrenia Olanzapine Duke (CRASOD)

This study has been withdrawn prior to enrollment.
(lack of funding)
Sponsor:
ClinicalTrials.gov Identifier:
NCT00672464
First Posted: May 6, 2008
Last Update Posted: July 31, 2014
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Duke University
  Purpose

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


Condition Intervention Phase
Schizophrenia Schizoaffective Disorder Drug: Olanzapine Drug: Metformin Drug: Simvastatin Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Combined Treatment of Cardiovascular Risk Factors In Newly Admitted Patients With Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine And Matched Controls

Resource links provided by NLM:


Further study details as provided by Duke University:

Primary Outcome Measures:
  • 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. [ Time Frame: 28 days ]

Secondary Outcome Measures:
  • 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. [ Time Frame: 28 days ]

Enrollment: 0
Study Start Date: April 2008
Estimated Study Completion Date: February 2010
Estimated Primary Completion Date: December 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Olanzapine only
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine
Drug: Olanzapine
Olanzapine zydis 15 mg QHS for 28 days
Experimental: Added Metformin
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine with Added Metformin
Drug: Olanzapine
Olanzapine zydis 15 mg QHS for 28 days
Drug: Metformin
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.
Experimental: Added Simvastatin
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine with Added Simvastatin
Drug: Olanzapine
Olanzapine zydis 15 mg QHS for 28 days
Drug: Simvastatin
Simvastatin will be started at 10 mg at bed time for the first week and 20 mg at bedtime thereafter.
Experimental: Added Metf. + Simv.
Newly Admitted Patients with Schizophrenia or Schizoaffective Disorder Who Are Receiving Olanzapine with Added Metformin and Simvastatin
Drug: Olanzapine
Olanzapine zydis 15 mg QHS for 28 days
Drug: Metformin
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.
Drug: Simvastatin
Simvastatin will be started at 10 mg at bed time for the first week and 20 mg at bedtime thereafter.
No Intervention: Matched Controls
Matched Control Subjects by age, race, and gender

Detailed Description:

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.

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

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.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00672464


Locations
United States, North Carolina
John Umstead Hospital
Butner, North Carolina, United States, 27509
Duke University Medical Center
Durham, North Carolina, United States, 27705
Sponsors and Collaborators
Duke University
Investigators
Principal Investigator: Joseph P McEvoy, MD Duke University Medical Center, Dep't. Psychiatry
  More Information

Responsible Party: Duke University
ClinicalTrials.gov Identifier: NCT00672464     History of Changes
Other Study ID Numbers: Pro00006916
None (investigator sponsored)
First Submitted: May 4, 2008
First Posted: May 6, 2008
Last Update Posted: July 31, 2014
Last Verified: July 2014

Keywords provided by Duke University:
Schizophrenia
Schizoaffective
Cardiovascular
Olanzapine
Metformin
Simvastatin

Additional relevant MeSH terms:
Schizophrenia
Schizophrenia Spectrum and Other Psychotic Disorders
Psychotic Disorders
Mental Disorders
Metformin
Simvastatin
Olanzapine
Hypoglycemic Agents
Physiological Effects of Drugs
Anticholesteremic Agents
Hypolipidemic Agents
Antimetabolites
Molecular Mechanisms of Pharmacological Action
Lipid Regulating Agents
Hydroxymethylglutaryl-CoA Reductase Inhibitors
Enzyme Inhibitors
Antiemetics
Autonomic Agents
Peripheral Nervous System Agents
Gastrointestinal Agents
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs
Serotonin Uptake Inhibitors
Neurotransmitter Uptake Inhibitors
Membrane Transport Modulators
Neurotransmitter Agents
Serotonin Agents