CClinicalTrials.gg
CompletedNCT00683709Updated Aug 3, 2011

Specialized Clozapine Clinic for Bipolar and Schizoaffective Disorder

An observational study in Bipolar Affective Disorder and Schizoaffective Disorder, sponsored by St. Joseph's Healthcare Hamilton. Completed at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2011-08-03.

Sponsored by St. Joseph's Healthcare Hamilton · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
48
Ages
18 Years and older
Sex
All
01

Study summary

Bipolar Disorder (BD) and Schizoaffective Disorder (SA) clients.

  • determine if after 12 months of treatment with clozapine, the BMI changes with clients who are councelled as usual regarding weight gain while on Clozapine.
  • determine if after 12 months of treatment with clozapine, the BMI changes with intense, structured councelling about diet and exercise.
Read the detailed description

To determine whether the changes in BMI produced in subjects with Bipolar Disorder (BD) and Schizoaffective Disorder (SA) by 12 months of treatment with clozapine, can be diminished after an intense and highly structured intervention focused on diet and exercise, compared with the usual brief counseling regarding weight gain on this drug.

02

Conditions studied

  • Bipolar Affective Disorder
  • Schizoaffective Disorder

Keywords

  • Bipolar and Schizoaffective Disorder
  • Clozapine
  • Metabolic Side Effects
  • Diet & Exercise
  • BMI
03

In context

Psychotic Disorders

1,626 studies on the registry are indexed under Psychotic Disorders; 293 are open to participants now.

This study's planned enrollment of 48 is below the median of 150 across 245 observational studies indexed under Psychotic Disorders.

Browse Psychotic Disorders studies →

Lead sponsor

St. Joseph's Healthcare Hamilton is the lead sponsor of 137 studies on the registry; 31 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Psychiatric outpatients from within the catchment area of the hospitalwho suffer from chizoaffective disorder and respond poorly to treatment offered to participate in research

Inclusion criteria

  • Clients diagnosed with bipolar disorder or schizoaffective disorder
  • Clients who respond poorly to treatment
  • Males and females ages 18 years or older
  • Clients who have had a trial of antipsychotics, incl. at least one atypical antipsychotic plus at least 2 mood stabilizers
  • Clients who are capable of providing informed consent

Exclusion criteria

Exclusion Criteria:

  • Clients who take carbamazepine
  • Clients with a history of extremely low white blood counts
  • Clients with severe kidney, liver or heart disease, or heart operation
  • Clients are hypersensitive to clozapine
  • Clients who have a history of serious side effects after previous treatment with clozapine
  • Clients with alcohol or drugs abuse within the last 3 months
  • Clients who have a seizure disorder
  • Clients who have metal in the head, neck or eyes, shrapnel, bullets, or body piercing, a pacemaker, brain aneurism clips, cochlear implant, hearing aid, tens unit, spinal implant, or pregnancy. These safety measures are necessary because of the magnetic fields of the MRI scan.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
48 participants (estimated)

Groups and cohorts

  • Counselling as Usual

    Discussing Clozapine medication, diet and exercise as per clinical protocol potential weight changes

    Behavioral: Counselling as Usual

  • Cognitive Behavoural Therapy

    Counselling about Clozapine medication, diet and exercise in a structured fashion using Cognitive Behavioural Therapy about potential weight changes

    Behavioral: CBT

Interventions

  • BehavioralCounselling as Usual

    5 - 20 minutes, about the effects of clozapine on body weight, appetite, blood sugar and fats such as cholesterol and triglycerides in the blood, and how these might affect your health in the future.

  • BehavioralCBT

    45 - 60 minutes individual treatment sessions focused on nutrition, exercise and weight control and will occur weekly for 4 weeks. After this, 10 group sessions focused on weight reduction will be held every 2 weeks. This will be followed by 6 group sessions focused on weight maintenance held every 2 weeks.

06

What researchers measure

Primary outcomes

  1. Increases in BMI in subjects with BD and SA after 12 months of clozapine treatment will be smaller in subjects treated with CBT ex/diet compared with those receiving CAU.

    Time frame: 5 years

Secondary outcomes

  1. Adverse changes in plasma lipids, blood sugar, and fitness level will be greater in subjects treated with CBT ex/diet compared with those receiving CAU after 12 months of clozapine treatment.

    Time frame: 5 years

07

Study locations

1 site
  • St. Joseph's Healthcare, Centre for Mountain Health Services
    Hamilton, Ontario L8N 3K7, Canada
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 3, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00683709
Lead sponsor
St. Joseph's Healthcare Hamilton
First posted
May 23, 2008
Start date
Jan 2007
Primary completion
Jul 2011
Completion
Jul 2011
Last update
Aug 3, 2011

Study contacts

Gary Hasey, MD
principal investigator · St. Joseph's Healthcare and McMaster University, Hamilton

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2011. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion