Skip to content

Comparison of a Long-acting Injectable Antipsychotic vs Clinician's Choice Early in Treatment to Break the Cycle of Relapse in Early Phase Schizophrenics

A Cluster Randomized, Multi-center, Parallel-group, Rater-blind Study Comparing Treatment With Aripiprazole Once Monthly and Treatment as Usual on Effectiveness in First Episode and Early Phase Illness in Schizophrenia

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02360319
Acronym
PRELAPSE
Enrollment
489
Registered
2015-02-10
Start date
2014-12-11
Completion date
2019-03-31
Last updated
2020-12-02

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

Conditions

Schizophrenia

Keywords

First episode or recent onset

Brief summary

The goal of this project is to show that the best possible option for preventing relapses in patients suffering from first episode (\<1 year of anti-psychotic medication) or early phase (\< 5 years of lifetime exposure to anti-psychotic medication) schizophrenia is by enhancing medication adherence. The study is designed to answer the question of whether the use of long-acting injectable (LAI) antipsychotics early in the course of treatment can break the cycle of frequent relapse that affects so many patients with early phase schizophrenia. The participating research sites (not individual patients) will be randomly assigned to either medication prescribed by their treating physician (with no restrictions) or to a regimen that involves a monthly long acting injectable antipsychotic. The sites will be assigned on a one to one basis to either of the arms taking into account types of patient population and geographical area. Patients enrolled in the study will participate in regular assessments either over the phone or in person and be followed for a period of 2 years. The primary outcome measure is time to first hospitalization.

Detailed description

Approximately 40 U.S. sites will participate in the study in order to enroll approximately 500 patients over a year period. They will be recruited into two cohorts - the first episode cohort and the early phase (EP) cohort, with approximately 250 patients in each cohort. Enrollment of patients will be discontinued when the appropriate number for the target for each cohort is reached. After providing written informed consent, patients will be screened for general eligibility by the clinical team at the site. Basic demographic data will be collected to determine suitability for inclusion into the study. The site will complete an information interview comprising data regarding symptomology and history, but the diagnosis of schizophrenia will fall to a centralized, remote blinded rater to enable consistency for eligibility. Prescribers at sites in the clinician's choice arm can treat the patients in the manner most appropriate for that individual. Prescribers at sites in the Aripiprazole Once Monthly arm monthly will prescribe and administer the medication according to recommendations contained in the product labeling. For a period of 2 years all subjects will receive bimonthly calls inquiring about visits to emergency rooms and hospitalization. At 4 month intervals information on use of services, insurance status, work, school attendance, and other service use outcomes will be assessed.

Interventions

DRUGAny FDA approved antipsychotic agent

Investigators are free to choose the most appropriate treatment for their clients

DRUGaripiprazole long acting injectable formulation

Sponsors

Otsuka America Pharmaceutical
CollaboratorINDUSTRY
Vanguard Research Group
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 35 Years
Healthy volunteers
No

Inclusion criteria

Are able to provide written informed consent Have a confirmed diagnosis of schizophrenia as defined by Diagnostic and Statistical Manual (DSM) 5 criteria using the SCID (Structured Clinical Interview for DSM disorders) Are between the ages of 18 and 35, inclusive Have the following history with antipsychotic medications 1. First episode subjects: \< 1 year of lifetime exposure to antipsychotic medication and only one episode of psychosis 2. EP subjects: between 1 year and 5 years of lifetime exposure to antipsychotic medication or subjects with \< 1 year of lifetime antipsychotic medication and more than one episode of psychosis. For LAI subjects: Must be willing to accept an injectable form of treatment

Exclusion criteria

Have a current primary DSM-5 diagnosis other than schizophrenia, including schizophreniform disorder, schizoaffective disorder, major depressive disorder, bipolar disorder, delirium, dementia, and amnestic or other cognitive disorders. For LAI sites only - have a known allergy or intolerance to aripiprazole, or a past negative response to aripiprazole that is not explained by nonadherence Be pregnant or lactating Have any unstable medical condition that, in the opinion of the investigator, would be detrimental to the subject or would confound the results of the study Subjects in the MRI subset only- presence of any metal implants, pacemakers, irremovable prosthetic devices, or other devices or situations that may preclude imaging

Design outcomes

Primary

MeasureTime frameDescription
Time to First HospitalizationHospitalizations assessed every 2 months from baseline to Month 24Assessments are done using best available data and patient interviews

Secondary

MeasureTime frameDescription
Total Number of Psychiatric Hospitalizations Per Treatment ArmMeasured every 2 months from baseline to month 24Assessments are completed using best available data and patient interviews
Brief Psychotic Rating Scale (BPRS) Total ScoreMeasured at Month 12 and Month 24The Brief Psychotic Rating Scale is an 18 item scale where each item is rated 1-7, the minimum total score is 18 and the maximum total score is 126. Higher scores indicate more severe symptoms.
Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of ScoresMeasured at Month 12 and Month 24Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) is a 12 item scale with a total score range of 0 to 321 with higher scores indicating better cognitive functioning
Quality of Life (QLS) Total ScoreMeasured at Month 12 and Month 24Quality of Life (QLS) is a 21 item scale where each item is rated from 0 to 7, the minimum score is 0 and the maximum score is 126 with higher scores indicating better overall functioning.

Countries

United States

Participant flow

Participants by arm

ArmCount
Clinician's Choice
Prescribers are not limited in the choice of treatment they can administer to their clients to alleviate the symptoms of schizophrenia. Any FDA approved antipsychotic agent can be used. Clients in the study wil be followed for 2 years Any FDA approved antipsychotic agent: Investigators are free to choose the most appropriate treatment for their clients
255
Aripiprazole Once Monthly
Aripiprazole long acting injectable formulation, 400mg per dose is to be administered once monthly. Clients in the study will be followed for 2 years aripiprazole long acting injectable formulation
234
Total489

Baseline characteristics

CharacteristicClinician's ChoiceTotalAripiprazole Once Monthly
Age, Continuous24.7 years
STANDARD_DEVIATION 4.1
25.2 years
STANDARD_DEVIATION 4.2
25.7 years
STANDARD_DEVIATION 4.3
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Asian
12 Participants18 Participants6 Participants
Race (NIH/OMB)
Black or African American
104 Participants213 Participants109 Participants
Race (NIH/OMB)
More than one race
45 Participants84 Participants39 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants2 Participants0 Participants
Race (NIH/OMB)
White
91 Participants171 Participants80 Participants
Region of Enrollment
United States
255 participants489 participants234 participants
Sex: Female, Male
Female
59 Participants121 Participants62 Participants
Sex: Female, Male
Male
196 Participants368 Participants172 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
2 / 2550 / 234
other
Total, other adverse events
161 / 241169 / 222
serious
Total, serious adverse events
104 / 25568 / 234

Outcome results

Primary

Time to First Hospitalization

Assessments are done using best available data and patient interviews

Time frame: Hospitalizations assessed every 2 months from baseline to Month 24

Population: Intent to treat

ArmMeasureValue (NUMBER)
Clinician's ChoiceTime to First Hospitalization530.6 days
Aripiprazole Once MonthlyTime to First Hospitalization613.7 days
Secondary

Brief Psychotic Rating Scale (BPRS) Total Score

The Brief Psychotic Rating Scale is an 18 item scale where each item is rated 1-7, the minimum total score is 18 and the maximum total score is 126. Higher scores indicate more severe symptoms.

Time frame: Measured at Month 12 and Month 24

ArmMeasureGroupValue (MEAN)Dispersion
Clinician's ChoiceBrief Psychotic Rating Scale (BPRS) Total ScoreBaseline35.59 Scores on a scaleStandard Deviation 9.4
Clinician's ChoiceBrief Psychotic Rating Scale (BPRS) Total ScoreMonth 1230.7 Scores on a scaleStandard Deviation 8.73
Clinician's ChoiceBrief Psychotic Rating Scale (BPRS) Total ScoreMonth 2430.73 Scores on a scaleStandard Deviation 8.86
Aripiprazole Once MonthlyBrief Psychotic Rating Scale (BPRS) Total ScoreBaseline35.45 Scores on a scaleStandard Deviation 9.27
Aripiprazole Once MonthlyBrief Psychotic Rating Scale (BPRS) Total ScoreMonth 1231.31 Scores on a scaleStandard Deviation 9.32
Aripiprazole Once MonthlyBrief Psychotic Rating Scale (BPRS) Total ScoreMonth 2430.87 Scores on a scaleStandard Deviation 9.13
Secondary

Quality of Life (QLS) Total Score

Quality of Life (QLS) is a 21 item scale where each item is rated from 0 to 7, the minimum score is 0 and the maximum score is 126 with higher scores indicating better overall functioning.

Time frame: Measured at Month 12 and Month 24

Population: Intent to treat

ArmMeasureGroupValue (MEAN)Dispersion
Clinician's ChoiceQuality of Life (QLS) Total ScoreBaseline63.60 Scores on a scaleStandard Deviation 19.36
Clinician's ChoiceQuality of Life (QLS) Total ScoreMonth 1268.45 Scores on a scaleStandard Deviation 23.13
Clinician's ChoiceQuality of Life (QLS) Total ScoreMonth 2462.21 Scores on a scaleStandard Deviation 24.54
Aripiprazole Once MonthlyQuality of Life (QLS) Total ScoreBaseline58.40 Scores on a scaleStandard Deviation 19.83
Aripiprazole Once MonthlyQuality of Life (QLS) Total ScoreMonth 1265.02 Scores on a scaleStandard Deviation 21.6
Aripiprazole Once MonthlyQuality of Life (QLS) Total ScoreMonth 2470.05 Scores on a scaleStandard Deviation 24.28
Secondary

Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of Scores

Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) is a 12 item scale with a total score range of 0 to 321 with higher scores indicating better cognitive functioning

Time frame: Measured at Month 12 and Month 24

ArmMeasureGroupValue (MEAN)Dispersion
Clinician's ChoiceRepeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of ScoresBaseline182.4 Scores on a scaleStandard Deviation 33.1
Clinician's ChoiceRepeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of ScoresMonth 12189.2 Scores on a scaleStandard Deviation 34.9
Clinician's ChoiceRepeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of ScoresMonth 24194.1 Scores on a scaleStandard Deviation 33.2
Aripiprazole Once MonthlyRepeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of ScoresBaseline177.7 Scores on a scaleStandard Deviation 35.4
Aripiprazole Once MonthlyRepeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of ScoresMonth 12178.2 Scores on a scaleStandard Deviation 34.9
Aripiprazole Once MonthlyRepeatable Battery for the Assessment of Neuropsychological Status (RBANS) Sum of ScoresMonth 24180.8 Scores on a scaleStandard Deviation 33.6
Secondary

Total Number of Psychiatric Hospitalizations Per Treatment Arm

Assessments are completed using best available data and patient interviews

Time frame: Measured every 2 months from baseline to month 24

Population: Intent to treat

ArmMeasureValue (NUMBER)
Clinician's ChoiceTotal Number of Psychiatric Hospitalizations Per Treatment Arm208 Hospitalizations
Aripiprazole Once MonthlyTotal Number of Psychiatric Hospitalizations Per Treatment Arm133 Hospitalizations

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026