Trial Outcomes & Findings for The Efficacy and Safety of a Selective Estrogen Receptor Beta Agonist (LY500307) for Negative Symptoms and Cognitive Impairment Associated With Schizophrenia (NCT NCT01874756)

NCT ID: NCT01874756

Last Updated: 2019-07-02

Results Overview

The Negative Symptom Assessment Scale - 16-item (NSA-16) is used to help clinicians rate behaviors (not psychopathology) commonly associated with negative symptoms of schizophrenia. The scale rates subjects on 16 "anchors," is a semi-structured, clinical interview, and each item is rated from 1 to 6. The total score is the sum of the 16 specific items and ranges from 16 to 96; a higher score indicates greater severity of illness. In addition, there is a global rating that represents the overall assessment of a subject's negative symptoms. The rating should not be an average of any particular behavior, but a gestalt of everything observed in the interview.

Recruitment status

TERMINATED

Study phase

PHASE2

Target enrollment

95 participants

Primary outcome timeframe

Baseline, week 2, week 4, week 6, week 8

Results posted on

2019-07-02

Participant Flow

Participant milestones

Participant milestones
Measure
Placebo
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 25mg
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
LY500307 75mg
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 150mg
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Overall Study
STARTED
29
10
29
27
Overall Study
COMPLETED
28
10
27
21
Overall Study
NOT COMPLETED
1
0
2
6

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

The Efficacy and Safety of a Selective Estrogen Receptor Beta Agonist (LY500307) for Negative Symptoms and Cognitive Impairment Associated With Schizophrenia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=29 Participants
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 25mg
n=10 Participants
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
LY500307 75mg
n=29 Participants
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 150mg
n=25 Participants
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Total
n=93 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Categorical
Between 18 and 65 years
29 Participants
n=5 Participants
10 Participants
n=7 Participants
29 Participants
n=5 Participants
25 Participants
n=4 Participants
93 Participants
n=21 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Continuous
36.28 years
STANDARD_DEVIATION 12.27 • n=5 Participants
36.64 years
STANDARD_DEVIATION 12.58 • n=7 Participants
37.15 years
STANDARD_DEVIATION 13.67 • n=5 Participants
37.64 years
STANDARD_DEVIATION 10.21 • n=4 Participants
37.07 years
STANDARD_DEVIATION 12.18 • n=21 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Sex: Female, Male
Male
29 Participants
n=5 Participants
10 Participants
n=7 Participants
29 Participants
n=5 Participants
25 Participants
n=4 Participants
93 Participants
n=21 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race (NIH/OMB)
Black or African American
17 Participants
n=5 Participants
6 Participants
n=7 Participants
17 Participants
n=5 Participants
12 Participants
n=4 Participants
52 Participants
n=21 Participants
Race (NIH/OMB)
White
11 Participants
n=5 Participants
2 Participants
n=7 Participants
12 Participants
n=5 Participants
13 Participants
n=4 Participants
38 Participants
n=21 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
3 Participants
n=21 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Region of Enrollment
United States
29 participants
n=5 Participants
10 participants
n=7 Participants
29 participants
n=5 Participants
25 participants
n=4 Participants
93 participants
n=21 Participants

PRIMARY outcome

Timeframe: Baseline, week 2, week 4, week 6, week 8

The Negative Symptom Assessment Scale - 16-item (NSA-16) is used to help clinicians rate behaviors (not psychopathology) commonly associated with negative symptoms of schizophrenia. The scale rates subjects on 16 "anchors," is a semi-structured, clinical interview, and each item is rated from 1 to 6. The total score is the sum of the 16 specific items and ranges from 16 to 96; a higher score indicates greater severity of illness. In addition, there is a global rating that represents the overall assessment of a subject's negative symptoms. The rating should not be an average of any particular behavior, but a gestalt of everything observed in the interview.

Outcome measures

Outcome measures
Measure
LY500307 150mg
n=25 Participants
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Placebo
n=29 Participants
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 75mg
n=29 Participants
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 25mg
n=10 Participants
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
Negative Symptom Changes - Negative Symptom Assessment Scale - 16-item (NSA-16) Total Score
Baseline
42.52 score on a scale
Standard Deviation 11.05
45.34 score on a scale
Standard Deviation 12.03
45.93 score on a scale
Standard Deviation 13.99
46.10 score on a scale
Standard Deviation 12.60
Negative Symptom Changes - Negative Symptom Assessment Scale - 16-item (NSA-16) Total Score
Week 2
40.96 score on a scale
Standard Deviation 12.82
46.10 score on a scale
Standard Deviation 14.68
44.82 score on a scale
Standard Deviation 11.62
47.20 score on a scale
Standard Deviation 14.69
Negative Symptom Changes - Negative Symptom Assessment Scale - 16-item (NSA-16) Total Score
Week 4
41.35 score on a scale
Standard Deviation 12.38
48.21 score on a scale
Standard Deviation 14.32
45.30 score on a scale
Standard Deviation 12.16
45.80 score on a scale
Standard Deviation 13.41
Negative Symptom Changes - Negative Symptom Assessment Scale - 16-item (NSA-16) Total Score
Week 6
43.43 score on a scale
Standard Deviation 15.36
46.46 score on a scale
Standard Deviation 15.64
43.19 score on a scale
Standard Deviation 11.18
44.10 score on a scale
Standard Deviation 15.74
Negative Symptom Changes - Negative Symptom Assessment Scale - 16-item (NSA-16) Total Score
Week 8
42.90 score on a scale
Standard Deviation 14.09
47.79 score on a scale
Standard Deviation 16.26
44.12 score on a scale
Standard Deviation 12.72
44.50 score on a scale
Standard Deviation 13.56

PRIMARY outcome

Timeframe: Baseline, week 2, week 4, week 6, week 8

Working memory (composite score of the Wechsler Memory Scale-III: Spatial Span (WMS) and Letter Number Span (LNS) tests). WMS has 2 sections in which a subject recalls increasingly difficult sequences. The total raw score range for both sections is 0-32. The raw score is then converted to a tscore based on normative ranges by age and sex, ranging from 0-100. For both the raw and tscore a higher score reflects better performance. LNS consists of 24 increasingly difficult sequences of letters and numbers that a subject is to recall and repeat back in Numeric-Alpha sequential order. The total raw score range is 0-24. The raw score is then converted to a tscore based on normative ranges by age and sex, ranging from 0-100. For both the raw and tscore a higher score reflects better performance. The Working Memory composite score is calculated by summing the WMS and LNS tscores, ranging from 0-200, a higher tscore reflects better performance.

Outcome measures

Outcome measures
Measure
LY500307 150mg
n=25 Participants
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Placebo
n=29 Participants
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 75mg
n=29 Participants
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 25mg
n=10 Participants
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
Working Memory Composite Score Changes
Baseline
34.76 score on a scale
Standard Deviation 12.03
33.21 score on a scale
Standard Deviation 11.86
34.79 score on a scale
Standard Deviation 10.90
35.70 score on a scale
Standard Deviation 14.88
Working Memory Composite Score Changes
Week 2
35.70 score on a scale
Standard Deviation 10.68
36.41 score on a scale
Standard Deviation 12.55
36.89 score on a scale
Standard Deviation 8.94
36.50 score on a scale
Standard Deviation 13.09
Working Memory Composite Score Changes
Week 4
35.30 score on a scale
Standard Deviation 13.08
35.93 score on a scale
Standard Deviation 12.14
37.54 score on a scale
Standard Deviation 8.66
35.90 score on a scale
Standard Deviation 13.49
Working Memory Composite Score Changes
Week 6
37.13 score on a scale
Standard Deviation 11.43
36.00 score on a scale
Standard Deviation 10.99
38.54 score on a scale
Standard Deviation 9.63
37.20 score on a scale
Standard Deviation 13.37
Working Memory Composite Score Changes
Week 8
37.86 score on a scale
Standard Deviation 11.24
38.04 score on a scale
Standard Deviation 13.08
37.48 score on a scale
Standard Deviation 9.18
38.00 score on a scale
Standard Deviation 12.27

PRIMARY outcome

Timeframe: Baseline, week 2, week 4, week 6, week 8

Verbal learning (composite score of the Hopkins Verbal Learning Test-Revised (HVLT-R)). The HVLT-R has 3 trials in which a subject recalls has many words from a list of 12 as they can. The total number recalled for each trial is summed and the score range is between 0-36. The raw score is then converted to a tscore based on normative ranges by age and sex, ranging from 0-100. For both the raw and tscore a higher score reflects better performance. The verbal learning composite score is calculated by using the HVLT-R tscore, a higher tscore reflects better performance.

Outcome measures

Outcome measures
Measure
LY500307 150mg
n=25 Participants
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Placebo
n=29 Participants
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 75mg
n=29 Participants
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 25mg
n=10 Participants
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
Verbal Learning Composite Score Changes
Baseline
33.36 score on a scale
Standard Deviation 6.60
33.93 score on a scale
Standard Deviation 5.98
34.50 score on a scale
Standard Deviation 7.39
32.30 score on a scale
Standard Deviation 6.63
Verbal Learning Composite Score Changes
Week 2
34.17 score on a scale
Standard Deviation 6.97
35.41 score on a scale
Standard Deviation 8.73
37.11 score on a scale
Standard Deviation 8.22
34.20 score on a scale
Standard Deviation 4.87
Verbal Learning Composite Score Changes
Week 4
33.96 score on a scale
Standard Deviation 7.04
35.11 score on a scale
Standard Deviation 7.43
37.42 score on a scale
Standard Deviation 8.26
34.60 score on a scale
Standard Deviation 5.52
Verbal Learning Composite Score Changes
Week 6
33.74 score on a scale
Standard Deviation 6.78
34.44 score on a scale
Standard Deviation 7.84
34.62 score on a scale
Standard Deviation 7.13
33.40 score on a scale
Standard Deviation 6.28
Verbal Learning Composite Score Changes
Week 8
34.67 score on a scale
Standard Deviation 5.63
35.54 score on a scale
Standard Deviation 7.57
37.12 score on a scale
Standard Deviation 7.76
37.30 score on a scale
Standard Deviation 6.17

PRIMARY outcome

Timeframe: week 2, week 4, week 8

Number of subjects with total testosterone reduction, as defined as a decrease in total testosterone plasma concentrations of 50% from baseline for two consecutive post-randomization values

Outcome measures

Outcome measures
Measure
LY500307 150mg
n=25 Participants
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Placebo
n=29 Participants
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 75mg
n=29 Participants
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 25mg
n=10 Participants
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
Number of Subjects With Total Testosterone Reduction
Week 2
0 participants
0 participants
0 participants
0 participants
Number of Subjects With Total Testosterone Reduction
Week 4
0 participants
0 participants
0 participants
0 participants
Number of Subjects With Total Testosterone Reduction
Week 8
0 participants
0 participants
0 participants
0 participants

PRIMARY outcome

Timeframe: Week 4, Week 8

Number of subjects with QTc prolongation, as defined as any subject with a change from baseline of 60 msec or greater during the active treatment phases

Outcome measures

Outcome measures
Measure
LY500307 150mg
n=25 Participants
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Placebo
n=29 Participants
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 75mg
n=29 Participants
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 25mg
n=10 Participants
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
Number of Subjects With QTc Prolongation
Week 4
0 participants
0 participants
0 participants
0 participants
Number of Subjects With QTc Prolongation
Week 8
0 participants
0 participants
0 participants
0 participants

PRIMARY outcome

Timeframe: Baseline, 8 weeks

To determine if LY500307 demonstrates cortical target engagement as assessed by changes in the N-back in frontal-parietal regions during the MRI.

Outcome measures

Outcome measures
Measure
LY500307 150mg
n=25 Participants
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Placebo
n=29 Participants
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 75mg
n=29 Participants
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 25mg
n=10 Participants
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
Cortical Target Engagement
Baseline
0.15 beta coefficient
Standard Deviation 0.22
0.16 beta coefficient
Standard Deviation 0.22
0.27 beta coefficient
Standard Deviation 0.21
0.21 beta coefficient
Standard Deviation 0.20
Cortical Target Engagement
Week 8
0.26 beta coefficient
Standard Deviation 0.21
0.22 beta coefficient
Standard Deviation 0.22
0.31 beta coefficient
Standard Deviation 0.26
0.30 beta coefficient
Standard Deviation 0.22

Adverse Events

Placebo

Serious events: 1 serious events
Other events: 4 other events
Deaths: 0 deaths

LY500307 25mg

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

LY500307 75mg

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

LY500307 150mg

Serious events: 1 serious events
Other events: 7 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=29 participants at risk
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 25mg
n=10 participants at risk
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
LY500307 75mg
n=29 participants at risk
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 150mg
n=25 participants at risk
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Psychiatric disorders
Suicidal ideation
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
4.0%
1/25 • Number of events 1 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
Blood and lymphatic system disorders
Hematemesis
3.4%
1/29 • Number of events 1 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/25 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.

Other adverse events

Other adverse events
Measure
Placebo
n=29 participants at risk
placebo 6 pills of inactive drug Placebo: 6 placebo capsules daily for 8 weeks
LY500307 25mg
n=10 participants at risk
LY500307 25mg LY500307 25mg: LY500307 25mg daily dose (1 capsules of 25mg and 5 capsules of placebo) for 8 weeks
LY500307 75mg
n=29 participants at risk
LY500307 75mg LY500307 75mg: LY500307 75mg daily dose (3 capsules of 25mg and 3 capsules of placebo) for 8 weeks
LY500307 150mg
n=25 participants at risk
LY500307 150mg LY500307 150mg: LY500307 150mg daily dose (6 capsules of 25mg) for 8 weeks
Psychiatric disorders
Suicidal Ideation
6.9%
2/29 • Number of events 2 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/25 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
Infections and infestations
Upper Respiratory Infection
6.9%
2/29 • Number of events 2 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
3.4%
1/29 • Number of events 1 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/25 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
Gastrointestinal disorders
Vomiting
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
6.9%
2/29 • Number of events 2 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/25 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
Gastrointestinal disorders
Diarrhea
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
8.0%
2/25 • Number of events 2 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
Renal and urinary disorders
Increased Urinary Frequency
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
10.0%
1/10 • Number of events 1 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
8.0%
2/25 • Number of events 2 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
Reproductive system and breast disorders
Erectile Dysfunction
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
8.0%
2/25 • Number of events 2 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
Psychiatric disorders
Psychotic Exacerbation
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/10 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
0.00%
0/29 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.
8.0%
2/25 • Number of events 2 • Adverse event data was collected over the 8 week time period that subjects were enrolled in the study.

Additional Information

Dr. Alan Breier

Indiana University

Phone: 3178808495

Results disclosure agreements

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