Trial Outcomes & Findings for Assessment of Safety and Efficacy of Therapy for the Prevention of Weight Gain Associated With Olanzapine (NCT NCT00401973)

NCT ID: NCT00401973

Last Updated: 2009-10-06

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

199 participants

Primary outcome timeframe

Baseline to endpoint (22 weeks)

Results posted on

2009-10-06

Participant Flow

Participant milestones

Participant milestones
Measure
Olanzapine
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Overall Study
STARTED
50
76
73
Overall Study
COMPLETED
39
50
50
Overall Study
NOT COMPLETED
11
26
23

Reasons for withdrawal

Reasons for withdrawal
Measure
Olanzapine
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Overall Study
Adverse Event
2
8
4
Overall Study
Clinical Relapse
0
1
1
Overall Study
Lack of Efficacy
0
0
3
Overall Study
Lost to Follow-up
2
2
2
Overall Study
Physician Decision
2
0
1
Overall Study
Protocol Violation
1
2
3
Overall Study
Sponsor Decision
0
1
0
Overall Study
Withdrawal by Subject
4
12
9

Baseline Characteristics

Assessment of Safety and Efficacy of Therapy for the Prevention of Weight Gain Associated With Olanzapine

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Olanzapine
n=50 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=76 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=73 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Total
n=199 Participants
Total of all reporting groups
Age Continuous
38.7 years
STANDARD_DEVIATION 12.89 • n=93 Participants
38.2 years
STANDARD_DEVIATION 11.40 • n=4 Participants
38.7 years
STANDARD_DEVIATION 12.01 • n=27 Participants
38.5 years
STANDARD_DEVIATION 11.95 • n=483 Participants
Sex: Female, Male
Female
19 Participants
n=93 Participants
30 Participants
n=4 Participants
30 Participants
n=27 Participants
79 Participants
n=483 Participants
Sex: Female, Male
Male
31 Participants
n=93 Participants
46 Participants
n=4 Participants
43 Participants
n=27 Participants
120 Participants
n=483 Participants
Region of Enrollment
United States
13 participants
n=93 Participants
22 participants
n=4 Participants
21 participants
n=27 Participants
56 participants
n=483 Participants
Region of Enrollment
Mexico
7 participants
n=93 Participants
9 participants
n=4 Participants
11 participants
n=27 Participants
27 participants
n=483 Participants
Region of Enrollment
Puerto Rico
5 participants
n=93 Participants
8 participants
n=4 Participants
5 participants
n=27 Participants
18 participants
n=483 Participants
Region of Enrollment
Israel
5 participants
n=93 Participants
8 participants
n=4 Participants
9 participants
n=27 Participants
22 participants
n=483 Participants
Region of Enrollment
Russian Federation
11 participants
n=93 Participants
15 participants
n=4 Participants
14 participants
n=27 Participants
40 participants
n=483 Participants
Region of Enrollment
Korea, Republic of
9 participants
n=93 Participants
14 participants
n=4 Participants
13 participants
n=27 Participants
36 participants
n=483 Participants
Race/Ethnicity
African
2 participants
n=93 Participants
10 participants
n=4 Participants
4 participants
n=27 Participants
16 participants
n=483 Participants
Race/Ethnicity
Caucasian
23 participants
n=93 Participants
30 participants
n=4 Participants
34 participants
n=27 Participants
87 participants
n=483 Participants
Race/Ethnicity
East Asian
10 participants
n=93 Participants
15 participants
n=4 Participants
14 participants
n=27 Participants
39 participants
n=483 Participants
Race/Ethnicity
Hispanic
14 participants
n=93 Participants
20 participants
n=4 Participants
18 participants
n=27 Participants
52 participants
n=483 Participants
Race/Ethnicity
Native American
0 participants
n=93 Participants
0 participants
n=4 Participants
1 participants
n=27 Participants
1 participants
n=483 Participants
Race/Ethnicity
West Asian
1 participants
n=93 Participants
1 participants
n=4 Participants
2 participants
n=27 Participants
4 participants
n=483 Participants
Type of Diagnosis
Schizoaffective
8 participants
n=93 Participants
15 participants
n=4 Participants
18 participants
n=27 Participants
41 participants
n=483 Participants
Type of Diagnosis
Schizophrenia
42 participants
n=93 Participants
61 participants
n=4 Participants
55 participants
n=27 Participants
158 participants
n=483 Participants
Body Mass Index (BMI)
27.0 kilograms/square meter (kg/m^2)
STANDARD_DEVIATION 4.53 • n=93 Participants
27.3 kilograms/square meter (kg/m^2)
STANDARD_DEVIATION 4.67 • n=4 Participants
27.0 kilograms/square meter (kg/m^2)
STANDARD_DEVIATION 4.84 • n=27 Participants
27.1 kilograms/square meter (kg/m^2)
STANDARD_DEVIATION 4.68 • n=483 Participants
Onset Age
24.35 years
STANDARD_DEVIATION 8.42 • n=93 Participants
26.44 years
STANDARD_DEVIATION 9.98 • n=4 Participants
24.40 years
STANDARD_DEVIATION 9.18 • n=27 Participants
25.15 years
STANDARD_DEVIATION 9.32 • n=483 Participants
Previous Number of Episodes
1.53 number of episodes
STANDARD_DEVIATION 1.02 • n=93 Participants
2.19 number of episodes
STANDARD_DEVIATION 5.90 • n=4 Participants
2.22 number of episodes
STANDARD_DEVIATION 5.77 • n=27 Participants
2.04 number of episodes
STANDARD_DEVIATION 5.06 • n=483 Participants
Weight
77.0 kilograms
STANDARD_DEVIATION 16.33 • n=93 Participants
79.1 kilograms
STANDARD_DEVIATION 17.27 • n=4 Participants
76.2 kilograms
STANDARD_DEVIATION 16.22 • n=27 Participants
77.5 kilograms
STANDARD_DEVIATION 16.62 • n=483 Participants

PRIMARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: All randomized participants with baseline and at least one postbaseline measurement.

Outcome measures

Outcome measures
Measure
Olanzapine
n=40 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=50 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=51 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Change From Baseline to Endpoint in Weight
2.76 kilograms
Standard Error 0.75
2.40 kilograms
Standard Error 0.65
0.65 kilograms
Standard Error 0.63

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: All randomized participants with baseline and at least one postbaseline measurement. Last post-baseline measurement carried forward.

Outcome measures

Outcome measures
Measure
Olanzapine
n=42 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=49 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=56 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Mean Change From Baseline to Endpoint in Fasting Triglycerides
Baseline
1.58 millimoles per Liter (mmol/L)
Standard Deviation 0.81
1.61 millimoles per Liter (mmol/L)
Standard Deviation 0.76
1.68 millimoles per Liter (mmol/L)
Standard Deviation 1.00
Mean Change From Baseline to Endpoint in Fasting Triglycerides
Change from Baseline
0.33 millimoles per Liter (mmol/L)
Standard Deviation 1.01
0.35 millimoles per Liter (mmol/L)
Standard Deviation 0.88
0.06 millimoles per Liter (mmol/L)
Standard Deviation 0.64

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: All randomized participants with baseline and at least one postbaseline measurement. Last post-baseline measurement carried forward.

Outcome measures

Outcome measures
Measure
Olanzapine
n=42 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=49 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=56 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Mean Change From Baseline to Endpoint in Fasting Total Cholesterol
Baseline
5.01 millimole per Liter (mmol/L)
Standard Deviation 1.00
5.03 millimole per Liter (mmol/L)
Standard Deviation 1.09
4.91 millimole per Liter (mmol/L)
Standard Deviation 1.21
Mean Change From Baseline to Endpoint in Fasting Total Cholesterol
Change from Baseline
0.36 millimole per Liter (mmol/L)
Standard Deviation 0.84
0.01 millimole per Liter (mmol/L)
Standard Deviation 1.06
-0.08 millimole per Liter (mmol/L)
Standard Deviation 0.92

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: Number of randomized participants with a baseline and at least one post-baseline measurement. Last post-baseline measurement carried forward.

Outcome measures

Outcome measures
Measure
Olanzapine
n=46 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=63 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=64 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Mean Change From Baseline to Endpoint in Fasting High Density Lipoprotein (HDL) Cholesterol
Baseline
1.25 millimole per liter (mmol/L)
Standard Deviation 0.29
1.26 millimole per liter (mmol/L)
Standard Deviation 0.36
1.22 millimole per liter (mmol/L)
Standard Deviation 0.35
Mean Change From Baseline to Endpoint in Fasting High Density Lipoprotein (HDL) Cholesterol
Change from Baseline
-0.00 millimole per liter (mmol/L)
Standard Deviation 0.23
-0.11 millimole per liter (mmol/L)
Standard Deviation 0.25
-0.08 millimole per liter (mmol/L)
Standard Deviation 0.24

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: All randomized participants with baseline and at least one postbaseline measurement. Last post-baseline measurement carried forward.

Outcome measures

Outcome measures
Measure
Olanzapine
n=40 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=47 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=55 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Mean Change From Baseline to Endpoint in Fasting Low Density Lipoprotein (LDL) Cholesterol
Baseline
3.02 millimole per Liter (mmol/L)
Standard Deviation 0.88
3.06 millimole per Liter (mmol/L)
Standard Deviation 1.03
2.91 millimole per Liter (mmol/L)
Standard Deviation 0.93
Mean Change From Baseline to Endpoint in Fasting Low Density Lipoprotein (LDL) Cholesterol
Change from Baseline
0.16 millimole per Liter (mmol/L)
Standard Deviation 0.60
-0.04 millimole per Liter (mmol/L)
Standard Deviation 0.95
-0.02 millimole per Liter (mmol/L)
Standard Deviation 0.84

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: All randomized participants with baseline and at least one postbaseline measurement. Last post-baseline measurement carried forward.

Outcome measures

Outcome measures
Measure
Olanzapine
n=44 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=59 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=64 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Mean Change From Baseline to Endpoint in Fasting Glucose
Baseline
5.32 millimole per Liter (mmol/L)
Standard Deviation 0.46
5.25 millimole per Liter (mmol/L)
Standard Deviation 0.78
5.28 millimole per Liter (mmol/L)
Standard Deviation 0.63
Mean Change From Baseline to Endpoint in Fasting Glucose
Change from Baseline
0.26 millimole per Liter (mmol/L)
Standard Deviation 0.99
0.10 millimole per Liter (mmol/L)
Standard Deviation 0.48
0.01 millimole per Liter (mmol/L)
Standard Deviation 0.58

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: All randomized participants with baseline and at least one postbaseline measurement. Last post-baseline measurement carried forward.

Outcome measures

Outcome measures
Measure
Olanzapine
n=44 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=63 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=63 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Mean Change From Baseline to Endpoint in Hemoglobin A1c
Baseline
5.51 percent hemoglobin A1c
Standard Deviation 0.46
5.48 percent hemoglobin A1c
Standard Deviation 0.39
5.53 percent hemoglobin A1c
Standard Deviation 0.37
Mean Change From Baseline to Endpoint in Hemoglobin A1c
Change from Baseline
0.09 percent hemoglobin A1c
Standard Deviation 0.45
0.10 percent hemoglobin A1c
Standard Deviation 0.37
-0.03 percent hemoglobin A1c
Standard Deviation 0.25

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: Number of participants with a baseline and at least one post baseline measurement. Last post-baseline measurement carried forward.

The BPRS is an 18-item clinician-administered scale used to assess the degree of severity of a subject's general psychopathological symptoms. Each item is rated on a scale from 1 (symptom not present) to 7 (symptom extremely severe). The BPRS total score ranges from 18 to 126.

Outcome measures

Outcome measures
Measure
Olanzapine
n=45 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=67 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=72 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Change From Baseline to Endpoint in Brief Psychiatric Rating Scale (BPRS) Total Score
Baseline
48.24 units on a scale
Standard Deviation 15.98
45.90 units on a scale
Standard Deviation 12.44
47.00 units on a scale
Standard Deviation 14.18
Change From Baseline to Endpoint in Brief Psychiatric Rating Scale (BPRS) Total Score
Change from Baseline
-13.89 units on a scale
Standard Deviation 18.61
-9.90 units on a scale
Standard Deviation 11.24
-9.72 units on a scale
Standard Deviation 14.15

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: Number of participants with a baseline and at least one post baseline measurement. Last post-baseline measurement carried forward.

The MADRS is a rating scale for severity of depressive mood symptoms. The MADRS has a 10-item checklist. Items are rated on a scale of 0-6, for a total score range of 0 (low severity of depressive symptoms) to 60 (high severity of depressive symptoms).

Outcome measures

Outcome measures
Measure
Olanzapine
n=46 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=67 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=72 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Change From Baseline to Endpoint in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score
Baseline
12.76 units on a scale
Standard Deviation 8.08
14.22 units on a scale
Standard Deviation 11.14
15.40 units on a scale
Standard Deviation 9.21
Change From Baseline to Endpoint in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score
Change from Baseline
-6.39 units on a scale
Standard Deviation 8.37
-4.12 units on a scale
Standard Deviation 7.20
-4.36 units on a scale
Standard Deviation 7.47

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: Number of participants with a baseline and at least one post baseline measurement. Last post-baseline measurement carried forward.

Measures severity of illness at the time of assessment compared with start of treatment. Scores range from 1 (normal, not at all ill) to 7 (among the most extremely ill patients).

Outcome measures

Outcome measures
Measure
Olanzapine
n=47 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=72 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
n=73 Participants
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Change From Baseline to Endpoint in Clinical Global Impression - Severity Scale (CGI-S)
Baseline
4.06 units on a scale
Standard Deviation 1.24
4.03 units on a scale
Standard Deviation 1.07
4.00 units on a scale
Standard Deviation 1.13
Change From Baseline to Endpoint in Clinical Global Impression - Severity Scale (CGI-S)
Change from Baseline
-0.98 units on a scale
Standard Deviation 1.13
-0.72 units on a scale
Standard Deviation 1.14
-0.79 units on a scale
Standard Deviation 1.03

SECONDARY outcome

Timeframe: Baseline to endpoint (22 weeks)

Population: N=Pairs of Observations for the combined treatment groups.

To understand the drivers of weight gain as indicated by the correlation between weight changes and changes in the Eating Inventory (EI) and Food Craving Inventory (FCI). The EI is a 51-item inventory that measures dietary restraint, disinhibition, and perceived hunger. The FCI is a 28-item instrument measuring the frequency over the past month of general cravings and cravings for specific types of foods, namely: high fats, sweets, carbohydrates/starches, and fast-food fats. Correlations were computed on the combined treatment groups.

Outcome measures

Outcome measures
Measure
Olanzapine
n=66 Participants
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
n=41 Participants
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
FCI: Total Score (N=184, N=137)
0.039 correlation
-0.000 correlation
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
EI: Disinhibition
-0.034 correlation
0.285 correlation
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
EI: Cognitive Restraint
-0.273 correlation
-0.038 correlation
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
EI: Hunger
-0.150 correlation
0.148 correlation
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
FCI: Carbohydrates/Starches (N=186, N=141)
0.013 correlation
-0.064 correlation
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
FCI: Fast Food Fats (N=188, N=140)
-0.019 correlation
0.047 correlation
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
FCI: High Fats (N=186, N=138)
0.051 correlation
0.043 correlation
Correlations Between Weight Changes and Changes in Eating Inventory (EI) and Food Craving Inventory (FCI) at 2 Weeks and 22 Weeks
FCI: Sweets (N=187, N=140)
0.022 correlation
-0.008 correlation

Adverse Events

Olanzapine

Serious events: 5 serious events
Other events: 26 other events
Deaths: 0 deaths

Olanzapine + Amantadine

Serious events: 4 serious events
Other events: 38 other events
Deaths: 0 deaths

Olanzapine + Metformin

Serious events: 4 serious events
Other events: 46 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Olanzapine
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
General disorders
Chest pain
0.00%
0/50
0.00%
0/76
1.4%
1/73 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Squamous cell carcinoma
0.00%
0/50
1.3%
1/76 • Number of events 1
0.00%
0/73
Nervous system disorders
Akathisia
0.00%
0/50
1.3%
1/76 • Number of events 1
0.00%
0/73
Psychiatric disorders
Hallucination
0.00%
0/50
1.3%
1/76 • Number of events 1
2.7%
2/73 • Number of events 2
Psychiatric disorders
Panic attack
0.00%
0/50
1.3%
1/76 • Number of events 1
0.00%
0/73
Psychiatric disorders
Psychotic disorder
2.0%
1/50 • Number of events 1
0.00%
0/76
0.00%
0/73
Psychiatric disorders
Schizophrenia
6.0%
3/50 • Number of events 3
0.00%
0/76
0.00%
0/73
Psychiatric disorders
Suicidal ideation
2.0%
1/50 • Number of events 1
0.00%
0/76
0.00%
0/73
Psychiatric disorders
Suicide attempt
0.00%
0/50
0.00%
0/76
1.4%
1/73 • Number of events 1

Other adverse events

Other adverse events
Measure
Olanzapine
olanzapine plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks.
Olanzapine + Amantadine
Olanzapine and Pharmacological Algorithm 1a - amantadine first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. amantadine: 100 mg, oral, twice a day. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Olanzapine + Metformin
Olanzapine and Pharmacological Algorithm 1b - metformin first plus behavioral information. olanzapine: 5-20 milligrams (mg), oral, daily for 22 weeks. metformin: 500 mg, oral, twice a day for 2 weeks, titrated to 500 mg three times a day thereafter. zonisamide: 100-400 mg, oral, daily (only if patient gained greater than 3 kilograms).
Gastrointestinal disorders
Constipation
0.00%
0/50
3.9%
3/76 • Number of events 3
4.1%
3/73 • Number of events 3
Gastrointestinal disorders
Diarrhoea
0.00%
0/50
3.9%
3/76 • Number of events 3
13.7%
10/73 • Number of events 11
Gastrointestinal disorders
Dry mouth
4.0%
2/50 • Number of events 2
5.3%
4/76 • Number of events 4
0.00%
0/73
Gastrointestinal disorders
Nausea
4.0%
2/50 • Number of events 2
3.9%
3/76 • Number of events 3
6.8%
5/73 • Number of events 6
Gastrointestinal disorders
Vomiting
0.00%
0/50
1.3%
1/76 • Number of events 1
6.8%
5/73 • Number of events 5
General disorders
Asthenia
2.0%
1/50 • Number of events 1
0.00%
0/76
4.1%
3/73 • Number of events 3
General disorders
Fatigue
2.0%
1/50 • Number of events 1
2.6%
2/76 • Number of events 2
4.1%
3/73 • Number of events 3
Infections and infestations
Nasopharyngitis
0.00%
0/50
5.3%
4/76 • Number of events 4
0.00%
0/73
Infections and infestations
Urinary tract infection
4.0%
2/50 • Number of events 2
0.00%
0/76
0.00%
0/73
Injury, poisoning and procedural complications
Overdose
4.0%
2/50 • Number of events 2
0.00%
0/76
0.00%
0/73
Investigations
Weight increased
4.0%
2/50 • Number of events 3
5.3%
4/76 • Number of events 4
5.5%
4/73 • Number of events 4
Metabolism and nutrition disorders
Increased appetite
6.0%
3/50 • Number of events 4
1.3%
1/76 • Number of events 1
4.1%
3/73 • Number of events 3
Nervous system disorders
Akathisia
4.0%
2/50 • Number of events 2
3.9%
3/76 • Number of events 3
2.7%
2/73 • Number of events 2
Nervous system disorders
Dizziness
4.0%
2/50 • Number of events 2
1.3%
1/76 • Number of events 1
2.7%
2/73 • Number of events 2
Nervous system disorders
Headache
4.0%
2/50 • Number of events 2
2.6%
2/76 • Number of events 2
5.5%
4/73 • Number of events 4
Nervous system disorders
Sedation
0.00%
0/50
5.3%
4/76 • Number of events 4
2.7%
2/73 • Number of events 2
Nervous system disorders
Somnolence
8.0%
4/50 • Number of events 4
6.6%
5/76 • Number of events 5
11.0%
8/73 • Number of events 10
Psychiatric disorders
Anxiety
4.0%
2/50 • Number of events 2
3.9%
3/76 • Number of events 3
2.7%
2/73 • Number of events 2
Psychiatric disorders
Insomnia
10.0%
5/50 • Number of events 5
5.3%
4/76 • Number of events 5
1.4%
1/73 • Number of events 3
Psychiatric disorders
Sleep disorder
4.0%
2/50 • Number of events 2
0.00%
0/76
1.4%
1/73 • Number of events 1

Additional Information

Chief Medical Officer

Eli Lilly and Company

Phone: 800-545-5979

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60