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Healthy Lifestyles for Mentally Ill People Who Have Experienced Weight Gain From Their Antipsychotic Medications

Management of Antipsychotic Medication Associated Obesity

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00344500
Acronym
MAMAO
Enrollment
122
Registered
2006-06-26
Start date
2005-10-31
Completion date
2009-09-30
Last updated
2016-04-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes, Obesity, Weight Gain

Keywords

Antipsychotic, Bipolar, Diabetes, Mental Illness, Nutrition, Obesity, Schizoaffective, Schizophrenia, Weight Gain, Weight Loss

Brief summary

This program aims to help Veterans who take antipsychotic medications lose weight. The investigators use a program based on the American Diabetes Association's Diabetes Prevention Program, and the investigators have modified it to fit the lifestyles of people with mental illness. All participants are educated about nutrition and cutting down fat intake, how and when to exercise, and the causes of diabetes and how to prevent it. Participants must be Veterans who live within one hour of the West Los Angeles VA hospital.

Detailed description

Rationale: The focus of this project is to develop a strategy to combat medication associated weight gain, the most problematic side effect of the newer antipsychotic medications. Improvements in long-term health outcomes might then be expected to change quality of life, promote treatment adherence, rehabilitative potential, and decrease resource utilization. Procedures: Half of the patients will randomized to the behavioral weight loss program (Lifestyle Balance Program) and do the following: Meet with their psychiatrist and a nutritionist who will go over diet recommendations with the patient Given a 7% weight loss goal Assisted in obtaining a 500 calorie reduction per day Asked to exercise for at least 30 min/day, at least 5 days a week Maintain weekly food and exercise diaries Be quizzed on their knowledge of healthy eating habits and nutrition The other half of the patients will be randomized to Usual Care and will: Receive pamphlets about Lifestyle Balance, starting exercise, and general nutritional information regarding food pyramids and the amount of calories in fast foods. Be encouraged to exercise and eat a healthy diet Not receive classes on nutrition or exercise Be seen on the same schedule as the experimental group, in order to equalize contact time. After six months, if patients in the usual care group wish to participate in the more rigorous behavioral weight loss program they will be given that opportunity. Visits: Time Line: Each subject will be followed for one year. Healthy Lifestyles courses will take eight weeks to complete. Visits will be monthly for the remaining 12 months Enrollment: 120 patients Course of study: October 2005-October 2008 At Beginning and Termination: Informed Consent (at start of study only) Psychiatric interviews and assessments Physical Examination Framingham risk assessment for cardiovascular disease Electrocardiogram Lipid Profile, fasting glucose, Hemoglobin A1C At Each Visit: Vitals, weight, waist circumference, BMI, and % Fat Food and exercise diaries will be reviewed At Month One and Month Six: Lipid Profile, fasting glucose, Hemoglobin A1C Electrocardiogram Psychiatric assessments At Month Nine: Lipid Profile, fasting glucose, Hemoglobin A1C Electrocardiogram Clinical Care: All patients will continue their clinical care with their current psychiatrist and general physician. Medications will not be manipulated for the purpose of this study. Incentives: The group participating in the behavioral intervention program will receive rewards for achieving weight loss goals and be given incentives such as a pedometer and Slimfast meal replacements.

Interventions

Patients randomized to the behavioral weight loss program (Lifestyle Balance Program) will do the following: -Meet with their psychiatrist and a nutritionist who will go over diet recommendations with the patient * Be given a 7% weight loss goal * Be assisted in obtaining a 500 calorie reduction per day * Exercise for at least 30 min/day, at least 5 days a week * Maintain weekly food and exercise diaries * Be quizzed on their knowledge of healthy eating habits and nutrition

Sponsors

VA Office of Research and Development
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Must be a Veteran * Diagnosis of psychotic disorders, schizophrenia, schizoaffective disorder and bipolar illness * Age 18-70 * Clinically determined to require ongoing treatment with Second Generation Antipsychotics (SGA) such as olanzapine, risperidone, quetiapine, ziprasidone, aripiprazole, clozapine * Experienced weight gain since treatment with SGA's * Inpatient or outpatient at the West Los Angeles VA * Competent to sign informed consent

Exclusion criteria

* Have recently been diagnosed with schizophrenia (less than 1 year) * Are pregnant or breast feeding a baby * Have a medically unstable condition

Design outcomes

Primary

MeasureTime frameDescription
Mean WeightWeekly/Monthly, up to 1 yearAverage weight of subjects attending each of the first 8 weekly visits and the 10 monthly visits which followed, per study group.
Change in Predicted Trajectory of Mean BMI Per GLMM Analysis12 monthsGeneral Linear Mixed Model (GLMM) is a full information maximum likelihood approach that permits inclusion of all available data and provides unbiased parameter estimates even if there are missing data under the condition that data are missing at random. The GLMM approach assumes that every patient is on a specific trajectory over time and that both the slope and the shape of this trajectory are a potential function of group membership or other person-level covariates. Using a likelihood ratio test, we compared different options to model these trajectories and found a linear model, which assumes that the same rate of change is maintained over the whole study, provided a good fit to the data. We used a linear model of the average rate of change over time (slope) for all comparisons. To illustrate the magnitude of difference between slopes for major outcomes, we report the estimated difference at 12 months between two hypothetical participants with identical baseline characteristics.
Change in Predicted Trajectory of Mean Body Fat Percentage Per GLMM Analysis12 monthsComputed as % body fat at 12 month - % body fat at baseline. General Linear Mixed Model (GLMM) is a full information maximum likelihood approach that permits inclusion of all available data and provides unbiased parameter estimates even if there are missing data under the condition that data are missing at random. The GLMM approach assumes that every patient is on a specific trajectory over time and that both the slope and the shape of this trajectory are a potential function of group membership or other person-level covariates. Using a likelihood ratio test, we found a linear model, assuming the same rate of change throughout the study, provided a good fit to the data compared to other models. We used a linear model of the average rate of change over time (slope) for all comparisons. To illustrate the magnitude of difference between slopes for major outcomes, we report the estimated difference at 12 months between two hypothetical participants with identical baseline characteristics.

Countries

United States

Participant flow

Recruitment details

225 volunteers were screened November 2005 to August 2008 from Veterans Hospital psychiatric clinics in West Los Angeles, USA.

Pre-assignment details

122 volunteers met the inclusion criteria, signed the informed consent document, and completed the baseline screening assessments prior to randomization to study groups.

Participants by arm

ArmCount
Usual Care
Usual Care control group
48
Lifestyle Balance
Weight management education and counseling
60
Total108

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event620
Overall StudyLost to Follow-up5131
Overall StudyNot Noted130
Overall StudyProtocol Violation471
Overall StudyWithdrawal by Subject7100

Baseline characteristics

CharacteristicLifestyle BalanceTotalUsual Care
Age, Continuous49.67 years
STANDARD_DEVIATION 6.9
49.63 years
STANDARD_DEVIATION 7.9138
49.58 years
STANDARD_DEVIATION 9.1
Age of Onset of Psychiatric Illness30.47 years
STANDARD_DEVIATION 11.5
29.4656 years
STANDARD_DEVIATION 10.917
28.21 years
STANDARD_DEVIATION 10.12
Antipsychotic (Weight Gain Risk)
Aripiprazole/Ziprasidone (Low)
21 participants28 participants7 participants
Antipsychotic (Weight Gain Risk)
Multiple
8 participants15 participants7 participants
Antipsychotic (Weight Gain Risk)
Olanzapine/Clozapine (High)
5 participants16 participants11 participants
Antipsychotic (Weight Gain Risk)
Other
2 participants5 participants3 participants
Antipsychotic (Weight Gain Risk)
Risperidone/Quetiapine (Med)
24 participants44 participants20 participants
Baseline Psychopathology Ratings
Antipsychotics Side-effects Checklist, Total
25.6 units on a scale
STANDARD_DEVIATION 3.7
25.8667 units on a scale
STANDARD_DEVIATION 3.6948
26.2 units on a scale
STANDARD_DEVIATION 3.7
Baseline Psychopathology Ratings
Brief Psychiatric Rating Scale, Total
34.9 units on a scale
STANDARD_DEVIATION 8.8
34.2333 units on a scale
STANDARD_DEVIATION 8.4483
33.4 units on a scale
STANDARD_DEVIATION 8
Baseline Psychopathology Ratings
Clinical Global Impression Rating
3.4 units on a scale
STANDARD_DEVIATION 0.8
3.4 units on a scale
STANDARD_DEVIATION 0.7963
3.4 units on a scale
STANDARD_DEVIATION 0.8
Baseline Psychopathology Ratings
Hamilton Depression Rating Scale, Total
12.7 units on a scale
STANDARD_DEVIATION 7.4
11.5 units on a scale
STANDARD_DEVIATION 6.8776
10.0 units on a scale
STANDARD_DEVIATION 5.9
Baseline Psychopathology Ratings
Heinrichs Quality of Life Scale, Total
61.1 units on a scale
STANDARD_DEVIATION 22.4
58.2556 units on a scale
STANDARD_DEVIATION 21.0662
54.7 units on a scale
STANDARD_DEVIATION 18.9
Baseline Psychopathology Ratings
Motivational Interview to Assess Stage of Change
2.9 units on a scale
STANDARD_DEVIATION 0.7
2.9 units on a scale
STANDARD_DEVIATION 0.6967
2.9 units on a scale
STANDARD_DEVIATION 0.7
Baseline Psychopathology Ratings
Self-Assessment of Illness Questionnaire, Total
79.1 units on a scale
STANDARD_DEVIATION 9.4
77.9889 units on a scale
STANDARD_DEVIATION 9.3433
76.6 units on a scale
STANDARD_DEVIATION 9.18
Blood Pressure
Diastolic
83.1 mmHg
STANDARD_DEVIATION 10.4
82.7889 mmHg
STANDARD_DEVIATION 10.4459
82.4 mmHg
STANDARD_DEVIATION 10.6
Blood Pressure
Systolic
126.7 mmHg
STANDARD_DEVIATION 13.3
125.2778 mmHg
STANDARD_DEVIATION 12.7394
123.5 mmHg
STANDARD_DEVIATION 11.9
Body Mass Index34.1 kg/m^2
STANDARD_DEVIATION 5.3
34.1889 kg/m^2
STANDARD_DEVIATION 5.0615
34.3 kg/m^2
STANDARD_DEVIATION 4.8
Body Weight105.3 kg
STANDARD_DEVIATION 21
105.9222 kg
STANDARD_DEVIATION 18.7231
106.7 kg
STANDARD_DEVIATION 15.6
Diagnosis per the Structured Clinical Interview for the Diagnostic and Statistical Manual
Bipolar
23 participants32 participants9 participants
Diagnosis per the Structured Clinical Interview for the Diagnostic and Statistical Manual
Other
4 participants7 participants3 participants
Diagnosis per the Structured Clinical Interview for the Diagnostic and Statistical Manual
Schizoaffective
12 participants20 participants8 participants
Diagnosis per the Structured Clinical Interview for the Diagnostic and Statistical Manual
Schizophrenia
21 participants49 participants28 participants
Education Level
Bachelor's or Equivalent Degree
6 participants15 participants9 participants
Education Level
Higher Professional Degree
2 participants2 participants0 participants
Education Level
HS Diploma/GED
47 participants83 participants36 participants
Education Level
No diploma
5 participants8 participants3 participants
Framingham Hard Coronary Heart Disease11.2 Percent
STANDARD_DEVIATION 5.8
11.0222 Percent
STANDARD_DEVIATION 6.5301
10.8 Percent
STANDARD_DEVIATION 7.4
Laboratory Tests
Glucose
103.9 mm/dL
STANDARD_DEVIATION 38.6
108.6556 mm/dL
STANDARD_DEVIATION 49.3093
114.6 mm/dL
STANDARD_DEVIATION 60
Laboratory Tests
HDL Cholesterol
37.3 mm/dL
STANDARD_DEVIATION 8.9
37.3889 mm/dL
STANDARD_DEVIATION 8.9477
37.5 mm/dL
STANDARD_DEVIATION 9.1
Laboratory Tests
LDL Cholesterol
111 mm/dL
STANDARD_DEVIATION 30.9
112.4222 mm/dL
STANDARD_DEVIATION 33.1885
114.2 mm/dL
STANDARD_DEVIATION 36.1
Laboratory Tests
Total Cholesterol
178.9 mm/dL
STANDARD_DEVIATION 38.1
181.5667 mm/dL
STANDARD_DEVIATION 40.6457
184.9 mm/dL
STANDARD_DEVIATION 43.8
Laboratory Tests
Triglycerides
161.3 mm/dL
STANDARD_DEVIATION 117.9
161.3889 mm/dL
STANDARD_DEVIATION 110.368
161.5 mm/dL
STANDARD_DEVIATION 101.4
Length of Psychiatric Illness18.86 years
STANDARD_DEVIATION 11.8
19.5889 years
STANDARD_DEVIATION 11.7732
20.5 years
STANDARD_DEVIATION 11.8
Living Situation
Board and Care
42 participants82 participants40 participants
Living Situation
Homeless
0 participants0 participants0 participants
Living Situation
Own Home
1 participants1 participants0 participants
Living Situation
Rental Home/Apt
16 participants22 participants6 participants
Living Situation
With Relatives
1 participants3 participants2 participants
Marital Status
Divorced/Widower
29 participants45 participants16 participants
Marital Status
Married
4 participants12 participants8 participants
Marital Status
Single/Cohabiting
27 participants51 participants24 participants
Medical Comorbidity
Diabetes
15 participants26 participants11 participants
Medical Comorbidity
Dyslipidemia
32 participants55 participants23 participants
Medical Comorbidity
Hypertension
33 participants60 participants27 participants
Medical Comorbidity
Metabolic Syndrome
40 participants65 participants25 participants
Medical Comorbidity
Obesity
40 participants72 participants32 participants
Medical Comorbidity
Required Exercise Tolerance Test
7 participants12 participants5 participants
Microalbumin/Creatinine16.12 mgMA/gCrt
STANDARD_DEVIATION 39.7
15.0889 mgMA/gCrt
STANDARD_DEVIATION 34.4026
13.8 mgMA/gCrt
STANDARD_DEVIATION 26.7
Occupation
None
53 participants95 participants42 participants
Occupation
Paid Work
6 participants9 participants3 participants
Occupation
Unpaid Work
1 participants4 participants3 participants
Percent Body Fat30.8 percentage
STANDARD_DEVIATION 5.7
30.5333 percentage
STANDARD_DEVIATION 6.0941
30.2 percentage
STANDARD_DEVIATION 6.6
Race/Ethnicity, Customized
African American or Black
25 participants49 participants24 participants
Race/Ethnicity, Customized
Asian or Pacific Islander
2 participants2 participants0 participants
Race/Ethnicity, Customized
Caucasian, White
24 participants43 participants19 participants
Race/Ethnicity, Customized
Hispanic, Latino, or Spanish Origin
6 participants9 participants3 participants
Race/Ethnicity, Customized
Mixed Heritage or Other
3 participants5 participants2 participants
Race/Ethnicity, Customized
Native American or Alaska Native
0 participants0 participants0 participants
Region of Enrollment
United States
60 participants108 participants48 participants
Sex: Female, Male
Female
6 Participants12 Participants6 Participants
Sex: Female, Male
Male
54 Participants96 Participants42 Participants
Waist Circumference117.1 cm
STANDARD_DEVIATION 14.5
117.9889 cm
STANDARD_DEVIATION 13.19
119.1 cm
STANDARD_DEVIATION 11.4

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
1 / 480 / 601 / 14
serious
Total, serious adverse events
8 / 489 / 601 / 14

Outcome results

Primary

Change in Predicted Trajectory of Mean BMI Per GLMM Analysis

General Linear Mixed Model (GLMM) is a full information maximum likelihood approach that permits inclusion of all available data and provides unbiased parameter estimates even if there are missing data under the condition that data are missing at random. The GLMM approach assumes that every patient is on a specific trajectory over time and that both the slope and the shape of this trajectory are a potential function of group membership or other person-level covariates. Using a likelihood ratio test, we compared different options to model these trajectories and found a linear model, which assumes that the same rate of change is maintained over the whole study, provided a good fit to the data. We used a linear model of the average rate of change over time (slope) for all comparisons. To illustrate the magnitude of difference between slopes for major outcomes, we report the estimated difference at 12 months between two hypothetical participants with identical baseline characteristics.

Time frame: 12 months

ArmMeasureValue (NUMBER)
Usual Care (UC)Change in Predicted Trajectory of Mean BMI Per GLMM Analysis0.6 kg/m^2
Lifestyle Balance (LB)Change in Predicted Trajectory of Mean BMI Per GLMM Analysis-1.7 kg/m^2
Primary

Change in Predicted Trajectory of Mean Body Fat Percentage Per GLMM Analysis

Computed as % body fat at 12 month - % body fat at baseline. General Linear Mixed Model (GLMM) is a full information maximum likelihood approach that permits inclusion of all available data and provides unbiased parameter estimates even if there are missing data under the condition that data are missing at random. The GLMM approach assumes that every patient is on a specific trajectory over time and that both the slope and the shape of this trajectory are a potential function of group membership or other person-level covariates. Using a likelihood ratio test, we found a linear model, assuming the same rate of change throughout the study, provided a good fit to the data compared to other models. We used a linear model of the average rate of change over time (slope) for all comparisons. To illustrate the magnitude of difference between slopes for major outcomes, we report the estimated difference at 12 months between two hypothetical participants with identical baseline characteristics.

Time frame: 12 months

ArmMeasureValue (NUMBER)
Usual Care (UC)Change in Predicted Trajectory of Mean Body Fat Percentage Per GLMM Analysis1.5 Body Fat Percentage Change
Lifestyle Balance (LB)Change in Predicted Trajectory of Mean Body Fat Percentage Per GLMM Analysis-2 Body Fat Percentage Change
Primary

Mean Weight

Average weight of subjects attending each of the first 8 weekly visits and the 10 monthly visits which followed, per study group.

Time frame: Weekly/Monthly, up to 1 year

Population: All subjects who enrolled in this research program. Subjects were assessed weekly, when able. Since some were not able to do every weekly assessment, N varies weekly, and the weekly assessments below are the means of the number of subjects out of the total in the group who were assessed at that point.

ArmMeasureGroupValue (MEAN)Dispersion
Usual Care (UC)Mean WeightWeek 38 (n=26, 28)233.23 PoundsStandard Deviation 43.56
Usual Care (UC)Mean WeightWeek 17 (n=36, 34)236.81 PoundsStandard Deviation 38.09
Usual Care (UC)Mean WeightWeek 21 (n=36, 36)238.56 PoundsStandard Deviation 39.92
Usual Care (UC)Mean WeightWeek 26 (n=31, 34)236.26 PoundsStandard Deviation 41.24
Usual Care (UC)Mean WeightWeek 30 (n=28, 30)236.94 PoundsStandard Deviation 45.59
Usual Care (UC)Mean WeightWeek 34 (n=26, 28)239.3 PoundsStandard Deviation 48.37
Usual Care (UC)Mean WeightWeek 43 (n=24, 25)238.61 PoundsStandard Deviation 46.43
Usual Care (UC)Mean WeightWeek 48 (n=26, 24)238.31 PoundsStandard Deviation 46
Usual Care (UC)Mean WeightWeek 52 (n=25, 25)238.54 PoundsStandard Deviation 48.09
Usual Care (UC)Mean WeightWeek 0 (n=47, 60)235.22 PoundsStandard Deviation 34.51
Usual Care (UC)Mean WeightWeek 1 (n=44, 56)235.95 PoundsStandard Deviation 35.33
Usual Care (UC)Mean WeightWeek 2 (n=42, 50)232.3 PoundsStandard Deviation 33.56
Usual Care (UC)Mean WeightWeek 3 (n=38, 45)235.98 PoundsStandard Deviation 35.88
Usual Care (UC)Mean WeightWeek 4 (n=41, 47)236.89 PoundsStandard Deviation 36.03
Usual Care (UC)Mean WeightWeek 5 (n=34, 43)235.99 PoundsStandard Deviation 37.94
Usual Care (UC)Mean WeightWeek 6 (n=38, 41)237.88 PoundsStandard Deviation 37.84
Usual Care (UC)Mean WeightWeek 7 (n=36, 42)235.3 PoundsStandard Deviation 36.54
Usual Care (UC)Mean WeightWeek 8 (n=39, 43)236.8 PoundsStandard Deviation 37.11
Usual Care (UC)Mean WeightWeek 9 (n=0, 1)NA Pounds
Usual Care (UC)Mean WeightWeek 12 (n=39, 36)238.2 PoundsStandard Deviation 36.72
Lifestyle Balance (LB)Mean WeightWeek 0 (n=47, 60)232.1 PoundsStandard Deviation 46.3
Lifestyle Balance (LB)Mean WeightWeek 5 (n=34, 43)234.79 PoundsStandard Deviation 45.95
Lifestyle Balance (LB)Mean WeightWeek 17 (n=36, 34)236.9 PoundsStandard Deviation 52.7
Lifestyle Balance (LB)Mean WeightWeek 1 (n=44, 56)233.41 PoundsStandard Deviation 46.1
Lifestyle Balance (LB)Mean WeightWeek 21 (n=36, 36)235.97 PoundsStandard Deviation 52.46
Lifestyle Balance (LB)Mean WeightWeek 9 (n=0, 1)251 PoundsStandard Deviation 0
Lifestyle Balance (LB)Mean WeightWeek 26 (n=31, 34)234.11 PoundsStandard Deviation 54.47
Lifestyle Balance (LB)Mean WeightWeek 2 (n=42, 50)233.34 PoundsStandard Deviation 47.78
Lifestyle Balance (LB)Mean WeightWeek 30 (n=28, 30)236.23 PoundsStandard Deviation 58.26
Lifestyle Balance (LB)Mean WeightWeek 6 (n=38, 41)237.38 PoundsStandard Deviation 52.9
Lifestyle Balance (LB)Mean WeightWeek 34 (n=26, 28)236.53 PoundsStandard Deviation 59.64
Lifestyle Balance (LB)Mean WeightWeek 38 (n=26, 28)230.21 PoundsStandard Deviation 48.04
Lifestyle Balance (LB)Mean WeightWeek 3 (n=38, 45)233.54 PoundsStandard Deviation 42.91
Lifestyle Balance (LB)Mean WeightWeek 43 (n=24, 25)228.25 PoundsStandard Deviation 48.65
Lifestyle Balance (LB)Mean WeightWeek 8 (n=39, 43)237.65 PoundsStandard Deviation 51.67
Lifestyle Balance (LB)Mean WeightWeek 48 (n=26, 24)229.94 PoundsStandard Deviation 50.6
Lifestyle Balance (LB)Mean WeightWeek 4 (n=41, 47)237.84 PoundsStandard Deviation 51.64
Lifestyle Balance (LB)Mean WeightWeek 52 (n=25, 25)228.39 PoundsStandard Deviation 51.95
Lifestyle Balance (LB)Mean WeightWeek 12 (n=39, 36)237.54 PoundsStandard Deviation 51.59
Lifestyle Balance (LB)Mean WeightWeek 7 (n=36, 42)235.5 PoundsStandard Deviation 52.73
Comparison: General Linear Mixed Model (GLMM) used to illustrate the magnitude of difference between slopes for major outcomes for two hypothetical participants with identical baseline characteristics over 12 months.p-value: <0.01Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026