Trial Outcomes & Findings for MEtformin and Lorcaserin for WeighT Loss in Schizophrenia (NCT NCT02796144)

NCT ID: NCT02796144

Last Updated: 2021-03-03

Results Overview

Change in body weight in participants assigned to lorcaserin/metformin combination treatment and participants assigned to placebo from baseline to last study visit (up to 52 weeks)

Recruitment status

TERMINATED

Study phase

PHASE4

Target enrollment

71 participants

Primary outcome timeframe

Baseline, Last Observed Visit (Up to 52 weeks)

Results posted on

2021-03-03

Participant Flow

Participant milestones

Participant milestones
Measure
Lorcaserin and Metformin
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Lorcaserin
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Lorcaserin: Max dose of 10 mg BID
Placebo
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Overall Study
STARTED
23
24
24
Overall Study
COMPLETED
18
21
18
Overall Study
NOT COMPLETED
5
3
6

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

MEtformin and Lorcaserin for WeighT Loss in Schizophrenia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Lorcaserin and Metformin
n=23 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Lorcaserin
n=24 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Lorcaserin: Max dose of 10 mg BID
Placebo
n=24 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Total
n=71 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
Age, Categorical
Between 18 and 65 years
22 Participants
n=93 Participants
24 Participants
n=4 Participants
24 Participants
n=27 Participants
70 Participants
n=483 Participants
Age, Categorical
>=65 years
1 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
1 Participants
n=483 Participants
Age, Continuous
40.52 years
STANDARD_DEVIATION 11.45 • n=93 Participants
43.75 years
STANDARD_DEVIATION 10.16 • n=4 Participants
38.25 years
STANDARD_DEVIATION 9.87 • n=27 Participants
40.85 years
STANDARD_DEVIATION 10.60 • n=483 Participants
Sex: Female, Male
Female
10 Participants
n=93 Participants
5 Participants
n=4 Participants
9 Participants
n=27 Participants
24 Participants
n=483 Participants
Sex: Female, Male
Male
13 Participants
n=93 Participants
19 Participants
n=4 Participants
15 Participants
n=27 Participants
47 Participants
n=483 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
Race (NIH/OMB)
Asian
0 Participants
n=93 Participants
0 Participants
n=4 Participants
1 Participants
n=27 Participants
1 Participants
n=483 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
Race (NIH/OMB)
Black or African American
12 Participants
n=93 Participants
10 Participants
n=4 Participants
13 Participants
n=27 Participants
35 Participants
n=483 Participants
Race (NIH/OMB)
White
9 Participants
n=93 Participants
13 Participants
n=4 Participants
8 Participants
n=27 Participants
30 Participants
n=483 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=93 Participants
1 Participants
n=4 Participants
1 Participants
n=27 Participants
3 Participants
n=483 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=93 Participants
0 Participants
n=4 Participants
1 Participants
n=27 Participants
2 Participants
n=483 Participants
Race/Ethnicity, Customized
Ethnicity · Hispanic or Latino
3 Participants
n=93 Participants
3 Participants
n=4 Participants
4 Participants
n=27 Participants
10 Participants
n=483 Participants
Race/Ethnicity, Customized
Ethnicity · Not Hispanic or Latino
20 Participants
n=93 Participants
21 Participants
n=4 Participants
20 Participants
n=27 Participants
61 Participants
n=483 Participants
Region of Enrollment
United States
23 Participants
n=93 Participants
24 Participants
n=4 Participants
24 Participants
n=27 Participants
71 Participants
n=483 Participants

PRIMARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Change in body weight in participants assigned to lorcaserin/metformin combination treatment and participants assigned to placebo from baseline to last study visit (up to 52 weeks)

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=23 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=24 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in Body Weight in Participants Assigned to Lorcaserin/Metformin Combination Treatment and Placebo
-13.05 pounds
Standard Error 2.97
-3.02 pounds
Standard Error 2.29

SECONDARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Change in body weight in participants assigned to lorcaserin monotherapy treatment and participants assigned to placebo from baseline to last study visit (up to 52 weeks)

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=24 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=24 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in Body Weight in Participants Assigned to Lorcaserin Monotherapy Treatment and Placebo
-5.18 pounds
Standard Error 2.43
-3.02 pounds
Standard Error 2.29

SECONDARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Population: The modified intent to treat (MITT) population included all randomized participants. Analyses using the MITT population were based on subjects with both baseline and post-treatment measures.

high-density lipoprotein

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=20 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=22 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
n=18 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in HDL Cholesterol
3.8 mg/dL
Standard Error 1.27
1.45 mg/dL
Standard Error 1.71
-0.78 mg/dL
Standard Error 2.63

SECONDARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Population: The modified intent to treat (MITT) population included all randomized participants. Analyses using the MITT population were based on subjects with both baseline and post-treatment measures.

low-density lipoprotein

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=20 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=22 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
n=18 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in LDL Cholesterol
-7.60 mg/dL
Standard Error 3.87
-10.86 mg/dL
Standard Error 5.40
-6.83 mg/dL
Standard Error 5.03

SECONDARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Population: The modified intent to treat (MITT) population included all randomized participants. Analyses using the MITT population were based on subjects with both baseline and post-treatment measures.

serum triglycerides

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=20 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=22 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
n=19 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in Triglycerides
-18.60 mg/dL
Standard Error 12.86
-19.68 mg/dL
Standard Error 14.97
-3.11 mg/dL
Standard Error 13.43

SECONDARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Population: The modified intent to treat (MITT) population included all randomized participants. Analyses using the MITT population were based on subjects with both baseline and post-treatment measures.

Total Cholesterol

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=20 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=22 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
n=19 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in Total Cholesterol
-9.05 mg/dL
Standard Error 3.96
-13.45 mg/dL
Standard Error 7.01
-9.21 mg/dL
Standard Error 4.83

SECONDARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Population: The modified intent to treat (MITT) population included all randomized participants. Analyses using the MITT population were based on subjects with both baseline and post-treatment measures.

glycosylated hemoglobin

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=20 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=23 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
n=19 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in Hemoglobin A1c
-0.03 percentage of glycosylated hemoglobin
Standard Error 0.05
0.07 percentage of glycosylated hemoglobin
Standard Error 0.08
0.05 percentage of glycosylated hemoglobin
Standard Error 0.05

SECONDARY outcome

Timeframe: Baseline, Last Observed Visit (Up to 52 weeks)

Population: The modified intent to treat (MITT) population included all randomized participants. Analyses using the MITT population were based on subjects with both baseline and post-treatment measures.

fasting blood glucose

Outcome measures

Outcome measures
Measure
Lorcaserin and Metformin
n=20 Participants
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Placebo
n=22 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Placebo
n=19 Participants
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Change in Fasting Glucose
-4.30 mg/dL
Standard Error 3.75
-3.27 mg/dL
Standard Error 2.58
3.53 mg/dL
Standard Error 2.11

Adverse Events

Lorcaserin and Metformin

Serious events: 1 serious events
Other events: 20 other events
Deaths: 0 deaths

Lorcaserin

Serious events: 2 serious events
Other events: 18 other events
Deaths: 0 deaths

Placebo

Serious events: 3 serious events
Other events: 16 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Lorcaserin and Metformin
n=23 participants at risk
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Lorcaserin
n=24 participants at risk
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Lorcaserin: Max dose of 10 mg BID
Placebo
n=24 participants at risk
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Psychiatric disorders
Hospitalization due to psychosis exacerbation
0.00%
0/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
8.3%
2/24 • Number of events 2 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
4.2%
1/24 • Number of events 2 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Gastrointestinal disorders
Hospitalization due to abdominal pain
0.00%
0/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
0.00%
0/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
4.2%
1/24 • Number of events 1 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Psychiatric disorders
Important Medical Intervention due to transient suicidal ideation
0.00%
0/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
0.00%
0/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
4.2%
1/24 • Number of events 1 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Immune system disorders
Generalized Hives and swelling
4.3%
1/23 • Number of events 1 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
0.00%
0/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
0.00%
0/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.

Other adverse events

Other adverse events
Measure
Lorcaserin and Metformin
n=23 participants at risk
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Metformin will be administered in dosages of 500 mg with a maximum dose of 2,000 mg. Lorcaserin: Max dose of 10 mg BID Metformin: Max dose of 1,000 mg BID
Lorcaserin
n=24 participants at risk
Lorcaserin will be administered in dosages of 10 mg with a maximum dose of 20 mg. Lorcaserin: Max dose of 10 mg BID
Placebo
n=24 participants at risk
Matching placebos will be administered for each active drug. Placebo: Matching placebos will be administered for each drug.
Gastrointestinal disorders
Nausea
21.7%
5/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
29.2%
7/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Gastrointestinal disorders
Vomiting
21.7%
5/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
16.7%
4/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
25.0%
6/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Gastrointestinal disorders
Diarrhea
34.8%
8/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
General disorders
Headache
47.8%
11/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
41.7%
10/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
33.3%
8/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
General disorders
Dizziness
34.8%
8/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
General disorders
Fatigue
30.4%
7/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
29.2%
7/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
54.2%
13/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
General disorders
Restlessness
39.1%
9/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
25.0%
6/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
16.7%
4/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Musculoskeletal and connective tissue disorders
Muscle twitching or spasms
26.1%
6/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
33.3%
8/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Musculoskeletal and connective tissue disorders
Muscle stiffness
34.8%
8/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
33.3%
8/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
33.3%
8/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Musculoskeletal and connective tissue disorders
Problems with coordination
21.7%
5/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
8.3%
2/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
General disorders
Excess sweating
21.7%
5/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
8.3%
2/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
12.5%
3/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Vascular disorders
Racing heart rate
21.7%
5/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
16.7%
4/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
20.8%
5/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Psychiatric disorders
Confusion
17.4%
4/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
4.2%
1/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
12.5%
3/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
Respiratory, thoracic and mediastinal disorders
Upper Respiratory
13.0%
3/23 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
8.3%
2/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.
0.00%
0/24 • From the time Informed Consent was signed until the last study visit, a total duration of 52 weeks after randomization.

Additional Information

Lars Fredrik Jarskog, MD

University of North Carolina at Chapel Hill

Phone: 919-843-7683

Results disclosure agreements

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