Trial Outcomes & Findings for Extension Study of Pimavanserin for the Adjunctive Treatment of Schizophrenia (NCT NCT03121586)

NCT ID: NCT03121586

Last Updated: 2025-08-24

Results Overview

Number of patients with treatment emergent adverse events

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

995 participants

Primary outcome timeframe

Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).

Results posted on

2025-08-24

Participant Flow

This was an open-label extension study for patients from studies ACP-103-034, 038, and 064. Patients who had completed any of those studies and had not shown significant worsening of symptoms, or who may have benefited, or were expected to benefit from continued pimavanserin treatment based on the investigator's judgment were eligible.

Participant milestones

Participant milestones
Measure
Rollover From ACP-103-034
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-038
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-064
Pimavanserin dose of 34 mg throughout the study.
Overall Study
STARTED
323
325
347
Overall Study
COMPLETED
248
280
217
Overall Study
NOT COMPLETED
75
45
130

Reasons for withdrawal

Reasons for withdrawal
Measure
Rollover From ACP-103-034
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-038
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-064
Pimavanserin dose of 34 mg throughout the study.
Overall Study
Study terminated by sponsor
0
0
99
Overall Study
Withdrawal by Subject
37
14
9
Overall Study
Not further specified
6
11
10
Overall Study
Adverse Event
16
5
6
Overall Study
Protocol Violation
0
5
0
Overall Study
Lack of Efficacy
3
3
1
Overall Study
Physician Decision
2
2
0
Overall Study
Noncompliance with study drug
5
3
5
Overall Study
Lost to Follow-up
4
2
0
Overall Study
Death
2
0
0

Baseline Characteristics

Extension Study of Pimavanserin for the Adjunctive Treatment of Schizophrenia

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Rollover From ACP-103-034
n=323 Participants
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-038
n=325 Participants
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-064
n=347 Participants
Pimavanserin dose of 34 mg throughout the study.
Total
n=995 Participants
Total of all reporting groups
Age, Continuous
37.2 years
STANDARD_DEVIATION 9.30 • n=5 Participants
37.8 years
STANDARD_DEVIATION 9.32 • n=7 Participants
38.0 years
STANDARD_DEVIATION 9.47 • n=5 Participants
37.7 years
STANDARD_DEVIATION 9.36 • n=4 Participants
Sex: Female, Male
Female
202 Participants
n=5 Participants
215 Participants
n=7 Participants
208 Participants
n=5 Participants
625 Participants
n=4 Participants
Sex: Female, Male
Male
121 Participants
n=5 Participants
110 Participants
n=7 Participants
139 Participants
n=5 Participants
370 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
2 Participants
n=7 Participants
0 Participants
n=5 Participants
2 Participants
n=4 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
Race (NIH/OMB)
Black or African American
25 Participants
n=5 Participants
13 Participants
n=7 Participants
0 Participants
n=5 Participants
38 Participants
n=4 Participants
Race (NIH/OMB)
White
295 Participants
n=5 Participants
309 Participants
n=7 Participants
346 Participants
n=5 Participants
950 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
4 Participants
n=4 Participants
Region of Enrollment
North America
45 participants
n=5 Participants
29 participants
n=7 Participants
0 participants
n=5 Participants
74 participants
n=4 Participants
Region of Enrollment
Europe
278 participants
n=5 Participants
296 participants
n=7 Participants
284 participants
n=5 Participants
858 participants
n=4 Participants
Region of Enrollment
South America
0 participants
n=5 Participants
0 participants
n=7 Participants
63 participants
n=5 Participants
63 participants
n=4 Participants

PRIMARY outcome

Timeframe: Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).

Population: Safety Analysis Set

Number of patients with treatment emergent adverse events

Outcome measures

Outcome measures
Measure
Rollover From ACP-103-034
n=323 Participants
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-038
n=325 Participants
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-064
n=347 Participants
Pimavanserin dose of 34 mg throughout the study (Week 26)
Treatment Emergent Adverse Events
128 Participants
111 Participants
110 Participants

Adverse Events

Rollover From ACP-103-034

Serious events: 13 serious events
Other events: 21 other events
Deaths: 2 deaths

Rollover From ACP-103-038

Serious events: 4 serious events
Other events: 30 other events
Deaths: 0 deaths

Rollover From ACP-103-064

Serious events: 4 serious events
Other events: 19 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Rollover From ACP-103-034
n=323 participants at risk
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-038
n=325 participants at risk
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-064
n=347 participants at risk
Pimavanserin dose of 34 mg throughout the study
Gastrointestinal disorders
Dental cyst
0.00%
0/323 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.31%
1/325 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
General disorders
Chest pain
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
General disorders
Drowning
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Infections and infestations
Cellulitis
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Infections and infestations
Pneumonia
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Infections and infestations
Sepsis
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Infections and infestations
Sinusitis
0.00%
0/323 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.31%
1/325 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Metabolism and nutrition disorders
Hypercalcaemia
0.00%
0/323 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.31%
1/325 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Tongue neoplasm benign
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Nervous system disorders
Epilepsy
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Psychiatric disorders
Schizophrenia
0.93%
3/323 • Number of events 3 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.31%
1/325 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.86%
3/347 • Number of events 3 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Psychiatric disorders
Completed suicide
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Psychiatric disorders
Psychiatric decompensation
0.00%
0/323 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.31%
1/325 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Psychiatric disorders
Substance-induced psychotic disorder
0.00%
0/323 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.29%
1/347 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Psychiatric disorders
Suicidal ideation
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
Vascular disorders
Pelvic venous thrombosis
0.31%
1/323 • Number of events 1 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/325 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
0.00%
0/347 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.

Other adverse events

Other adverse events
Measure
Rollover From ACP-103-034
n=323 participants at risk
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-038
n=325 participants at risk
Starting dose of 20 mg at week 1. The dose could be continued, decreased to 10 mg, or increased to 34 mg at investigator discretion through Week 52.
Rollover From ACP-103-064
n=347 participants at risk
Pimavanserin dose of 34 mg throughout the study
Nervous system disorders
Headache
6.5%
21/323 • Number of events 23 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
9.2%
30/325 • Number of events 36 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.
5.5%
19/347 • Number of events 24 • Treatment period (52 weeks) and follow-up period (30 days): planned total of 56 weeks. Since the study was prematurely terminated, the reporting period was shortened; AEs were assessed to the end of treatment, at a mean duration of 319 days (or 46 weeks).
This was an open-label extension study with assessment of safety/tolerability as primary objective. Inferential statistics was not planned. The study was terminated prematurely due to business reasons; mean follow-up duration of patients was shorter than specified in the protocol. Therefore, it was considered adequate to analyse pooled data, i.e. regardless of the trial from which patients originated or dose and dosing regimen patients used in this study.

Additional Information

Sr. Dir. Medical Information and Medical Communications

Acadia Pharmaceuticals Inc.

Phone: 844-422-2342

Results disclosure agreements

  • Principal investigator is a sponsor employee Investigator may publish the study results, relative to their own patients, only after review, comment and approval by the sponsor. No publication of confidential information shall be made without the sponsor's prior written consent. At least 60 days prior to submitting a manuscript or prior to any public presentation, a copy of the manuscript or presentation will be provided to the Sponsor for review and comment. The sponsor has 60 days to review and comment.
  • Publication restrictions are in place

Restriction type: OTHER