An interventional study of Behavioural Intervention for the Prevention of Weight Gain and TAU in Schizophreniform Disorder, Bipolar I Disorder and Bipolar II Disorder, sponsored by Centre for Addiction and Mental Health. Completed at 1 site in Canada. Open to participants aged 14 Years to 45 Years. Per ClinicalTrials.gov, last updated 2017-07-25.
Sponsored by Centre for Addiction and Mental Health · Not applicable, Interventional, and Prevention
The purpose of this study is to determine whether individuals with psychotic spectrum disorders ( Schizophrenia, Schizoaffective disorder,Schizophreniform Disorder, Bipolar Disorder (Type I),Bipolar Disorder (Type II),Major Depressive Disorder With Psychotic Features,Substance-Induced Psychoses,Psychosis Not-Otherwise-Specified (NOS)randomly assigned to a stepped behavioral intervention for the prevention of weight gain will experience less weight gain than individuals who receive usual care. There are several studies that have examined the effect of pharmacological and non-pharmacological behavioural approaches for weight loss in patients with psychosis, however studies examining strategies for prevention of obesity are lacking. This study is an important and novel approach to studying the problem of obesity in those with psychosis.
The rates of obesity and related co-morbidities are several-fold higher in patients with psychosis than in the general population. In addition the life expectancy 20% shorter. Several lifestyle and illness-related factors have been implicated for these high rates, including weight gain associated with treatment with novel antipsychotics. The most important cause of death in psychosis patients is coronary heart disease (CHD), of which obesity is a major risk factor. As well, diabetes and its associated complications occur at high rates in persons with psychosis, and diabetes is both related to obesity and is an independent risk factor for CVD and mortality. It therefore seems reasonable to assume that prevention of obesity may lead to a reduced risk for CVD and diabetes. If the proposed intervention proves successful in preventing weight gain and reducing risk for CVD and diabetes, the quality and length of life for persons with psychosis will be vastly improved and medical costs reduced.
Specifically, we hypothesize that : 1a) a smaller proportion of those in the intervention will gain weight (2% or more) as compared to those receiving usual care, 1b) the mean weight gain of those randomized to the intervention will be less than the mean weight gain in those randomized to usual care 2) Increases in Body Mass Index (BMI) and waist circumference (WC) will be smaller in the intervention group as compared to the controls. 3) there will be smaller increases in cholesterol, triglycerides, blood glucose and insulin levels in the intervention group than in the control group. Exploratory analyses of changes in makers for systemic inflammation, and their relationship to weight, and lipid changes, will be conducted to develop novel hypotheses regarding mediators of CVD risk in psychosis.
The study will recruit sixty persons or outpatients with DSM-lV Psychosis with a BMI of \< 30 kg/m², who have been treated for less than 2 years (Early SZ) and meet the other enrollment criteria. They will be randomly assigned in the allocation ratio 1:1 to either get a stepped behavioural intervention for prevention of weight gain (n=30) or treatment as usual (routine care, n=30). This will be a pragmatic clinical trial of 16-week duration.
405 studies on the registry are indexed under Weight Gain; 52 are open to participants now.
This study's enrollment of 70 is below the median of 83 across 324 interventional studies indexed under Weight Gain.
Browse Weight Gain studies →Centre for Addiction and Mental Health is the lead sponsor of 327 studies on the registry; 51 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Inclusion/exclusion criteria has been intentionally limited in order to maximize the generalizability of the study.
Behavioral: Behavioural Intervention for the Prevention of Weight Gain
Other: TAU
The intervention consists of four steps: * STEP 1 (Watchful Waiting): Measurement of body weight and Waist Circumference at the start (1 visit). Subjects that have a weight gain greater then or equal to 2% of their baseline weight will progress to Step 2 * STEP 2 (Self monitoring): Self-monitoring of daily weight, daily food intake \& physical activity (1 visit) Subjects that have a weight gain greater then or equal to 2% (from STEP 2) will progress to Step 3 * STEP 3 (Nutrition \& Exercise Counseling): Counseling for nutrition and physical activity (4 visits; 2 in-clinic, 2 telephone) Subjects that have a weight gain greater then or equal to 2% (from STEP 3) will progress to Step 4 * STEP 4 (Intensive): Intensive behavioral training geared towards reducing caloric intake (4 in-clinic visits)
Treatment as provided by individuals' existing healthcare providers
Weight
The proportion with an increase in weight (2% or greater), from baseline to end point.
Time frame: Measured at week 0, 4, 8 and 16
Laboratory parameters
* Fasting glucose * Insulin * Lipids
Time frame: Measured at week 0 and 16
This study is completed, as verified in Jul 2017. You cannot join it, but the record below documents what was studied.
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Centre for Addiction and Mental Health