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A Study to Assess the Clinical Utility of Antipsychotic Medication Levels in Plasma as Determined by Liquid Chromatography-Tandem Mass Spectrometry

A Sequential and Parallel Cohort Design to Test the Clinical Utility of Antipsychotic Medication Levels in Plasma as Determined by Liquid Chromatography-Tandem Mass Spectrometry

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02462473
Enrollment
9
Registered
2015-06-04
Start date
2015-05-31
Completion date
2016-01-31
Last updated
2017-03-29

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

Conditions

Schizoaffective Disorder, Schizophrenia

Keywords

Schizophrenia, Schizoaffective Disorder, Aripiprazole, Olanzapine, Paliperidone, Quetiapine, Risperidone, Liquid Chromatography-Tandem Mass Spectrometry

Brief summary

The purpose of this study is to determine the number of Medication Treatment Modifications (MTMs) made by the clinician at every visit when antipsychotic medication plasma levels (AMPL) results are available compared to when AMPL results are not available.

Detailed description

This is a naturalistic, open-label (all people know the identity of the intervention), multicenter (when more than one hospital or medical school team work on a medical research study), pilot clinical utility study with a sequential and parallel cohort design in participants with a diagnosis of schizophrenia or schizoaffective disorder. The study consists of up to 3 Phases: Screening Phase (Screening and first assessment visit should preferably take place on the same day), active assessment phase (12 weeks, An optional 12 week extension phase. Participants will be assigned to Cohort 1, or randomized to Cohort 2 or Cohort 3. Participants in cohorts 2 and 3 who are receiving long acting injectable (LAI) formulations of paliperidone and/or risperidone and complete participation in the active assessment phase) will have the option of continuing into the extension phase. The duration of study participation will be approximately 12 weeks. Participants in the optional extension phase will have an additional 12 weeks of study participation. The primary outcome will be measured by the number of Medication Treatment Modifications (MTMs) made by the clinician at every visit. Participants' safety will be monitored throughout the study.

Interventions

DRUGAripiprazole

Participants will receive aripiprazole at a dose of 5 milligram (mg) or higher, as oral formulation once daily for 12 weeks as part of participant treatment.

DRUGOlanzapine

Participants will receive olanzapine at a dose of 5 mg or higher, as oral formulation once daily for 12 weeks as part of participant treatment.

DRUGPaliperidone

Participants will receive paliperidone 3 mg or higher dose as oral formulation once daily or 39 mg or higher dose once every 4 weeks for 12 weeks as part of participant treatment.

DRUGQuetiapine

Participants will receive quetiapine at a dose of 150 mg or higher, as oral formulation once daily for 12 weeks as part of participant treatment.

DRUGRisperidone

Participants will receive risperidone 1 mg or higher dose, as oral formulation once daily or as injection of 12.5 mg or higher dose once every 2 weeks for 12 weeks as part of participant treatment.

Sponsors

Janssen Research & Development, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Participant has a diagnosis of schizophrenia (Code 295.90) or schizoaffective disorder (Code 295.70) according to Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM 5), based on history and clinical assessment by the investigator * Participant has current active medication management issues and has experienced a medication treatment modification within the 6 weeks prior to Screening * Participant is currently taking one or more of the following antipsychotic medications for at least 1 week for oral antipsychotics and at least 1 injection cycle for long-acting injectable (LAI) antipsychotics. In addition, the treating clinician plans to continue the antipsychotic medication(s) for at least 4 weeks subsequent to the Screening visit. Participant may be taking more than one formulation of a particular medication (such as oral and LAI) at or above the minimum dose specified in protocol. Qualifying formulations of the antipsychotic medications are: Aripiprazole (oral formulation only), Olanzapine (oral formulation only), Paliperidone (oral and/or LAI formulations), Quetiapine (oral formulation only), and Risperidone (oral and/or LAI formulations) * Participant has had no clinically significant suicidal behavior or ideation during the week prior to Screening, according to the investigator's judgment * Participant is generally healthy and has no clinically significant or unstable medical problems as determined by the investigator, except for the indication for which the antipsychotic treatment is being prescribed. This determination must be recorded in the participant's source documents and initialed by the investigator

Exclusion criteria

* Participant has been attending the outpatient psychiatric clinic for more than 12 months since the last psychiatric hospitalization * During Screening, participant has active alcohol or substance use disorder (except tobacco) of moderate or severe severity according to DSM 5 criteria * Participant has a history of or currently has a clinically significant (particularly unstable) medical illness, other than the indication for which the participant is taking antipsychotic therapy, that the investigator considers should exclude the participant or that could interfere with the participant completing the study or with interpretation of the study results. Treated, stable, chronic medical problems are allowed, as long as these conditions do not interfere with the study assessments * Participant is receiving clozapine * Participant has donated blood or blood products or had substantial loss of blood (ie, blood loss of approximately more than 450 milliliter (mL) or blood loss that required a blood transfusion) within 1 month of Screening or has the intention to donate blood or blood products during the study

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Medication Treatment Modifications (MTM)Up to Week 12Information on MTMs derived from data collected in the clinical assessment of the schizophrenia patient (CASP) questionnaire. The CASP captured changes in medications, changes in psychosocial treatments, visit frequency, and the need for any acute interventions. The CASP comprised of 3 sections covering several parameters. The CASP captured changes in treatment options which was used to compute MTM, as well as factors in clinical decision making and the influence of antipsychotic medication plasma levels (AMPL), when they were available, on clinical decision making.

Secondary

MeasureTime frameDescription
Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Week 0, Week 12The DPSS is a clinician-rated scale used to rate 8 domains commonly seen in patients with psychotic disorders. Each domain was rated on a 5-point scale (0 to 4) with anchored description of endpoints. Total score was computed by summing the scores of individual items (range of 0-32). Higher scores represent more severe condition. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.
Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Week 12AMPL of the individual participant during the active assessment phase was reported.
Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)Up to Week 12The CASP and data on concomitant medications and psychosocial treatments were used to evaluate the impact of AMPL results on other aspects of clinical decision making.
Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Week 0, Week 12Clinical Global Impression-Severity (CGI-S) rating scale used to rate the severity of a participant's overall clinical condition on a 7-point scale ranging from 1 (not ill) to 7 (extremely severe). Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.
Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Week 0, Week 12The BARS is a 4-item scale that includes 3 questions and an overall visual analog rating scale that assesses participant's knowledge about his/her medication. The key measure of adherence is the visual analog scale and assesses the percentage of doses taken by the participants in the past month (0 percent \[%\] - 100%). The 3 questions include: number of prescribed doses per day, number of days in the past month when the participant did not take the prescribed doses, and the number of days in the past month when the participant took less than the prescribed dose. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.
Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Week 0, Week 12The PSS is a brief scale designed to capture a psychiatric patient's satisfaction with a clinician. The scale covers 6 domains: Trust (3 items), Communication (3 items), Exploration of Ideas/Options (2 items), Body Language (2 items), Active Listening (4 items), and Miscellaneous Items (6 items). Out of the 20 items, the first 19 are scored on a 5-point Likert Scale (1=strongly disagree, 2=disagree, 3=satisfactory, 4=agree, 5=strongly agree). The last question (6f) is a free-response question asking for input on how the clinician might improve. Sum of scores of individual items give a total score (range 9-95). Higher scores indicate greater degree of satisfaction. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.
Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Week 0, Week 12The CRS is an ordinal scale filled by the clinician. The scores range from 1 to 7 that were used to quantify the clinician's assessment of treatment adherence by the patient. Higher scores indicate greater adherence. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.

Countries

United States

Participant flow

Pre-assignment details

The study had a planned enrollment of approximately 155 participants into 3 cohorts. However a total of 9 participants were enrolled and analyzed for efficacy and safety assessments in Cohort 1 and no participants were enrolled into Cohorts 2 or 3 of the study.

Participants by arm

ArmCount
Cohort 1
Participants received treatment as usual (TAU) which include one or more of the 5 antipsychotic medications (aripiprazole, olanzapine, paliperidone, quetiapine, and risperidone) for 12 weeks.
9
Total9

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath1
Overall StudyOther3

Baseline characteristics

CharacteristicCohort 1
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
Age, Continuous46.2 years
STANDARD_DEVIATION 13.15
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
7 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
4 / 9
serious
Total, serious adverse events
1 / 9

Outcome results

Primary

Number of Participants With Medication Treatment Modifications (MTM)

Information on MTMs derived from data collected in the clinical assessment of the schizophrenia patient (CASP) questionnaire. The CASP captured changes in medications, changes in psychosocial treatments, visit frequency, and the need for any acute interventions. The CASP comprised of 3 sections covering several parameters. The CASP captured changes in treatment options which was used to compute MTM, as well as factors in clinical decision making and the influence of antipsychotic medication plasma levels (AMPL), when they were available, on clinical decision making.

Time frame: Up to Week 12

Population: All enrolled participants who had a baseline CASP evaluation were included in the efficacy analysis set. Here, 'N' (number of participants analyzed) signifies those participants who were evaluable for this endpoint.

ArmMeasureValue (NUMBER)
Cohort 1Number of Participants With Medication Treatment Modifications (MTM)4 Participants
Secondary

Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12

The BARS is a 4-item scale that includes 3 questions and an overall visual analog rating scale that assesses participant's knowledge about his/her medication. The key measure of adherence is the visual analog scale and assesses the percentage of doses taken by the participants in the past month (0 percent \[%\] - 100%). The 3 questions include: number of prescribed doses per day, number of days in the past month when the participant did not take the prescribed doses, and the number of days in the past month when the participant took less than the prescribed dose. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.

Time frame: Week 0, Week 12

Population: All enrolled participants who had a baseline CASP evaluation were included in the efficacy analysis set. One participant (Participant 4) was not analyzed at Week 12 due to discontinuation caused by death.

ArmMeasureGroupValue (NUMBER)
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 1 (Week 0)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 1 (Week 12)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 2 (Week 0)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 2 (Week 12)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 3 (Week 0)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 3 (Week 12)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 4 (Week 0)97 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 5 (Week 0)93 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 5 (Week 12)90 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 6 (Week 0)90 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 6 (Week 12)96 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 7 (Week 0)90 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 7 (Week 12)95 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 8 (Week 0)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 8 (Week 12)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 9 (Week 0)100 percent adherence
Cohort 1Adherence to Antipsychotic Medication as Assessed by Brief Adherence Rating Scale (BARS) at Week 0 and 12Participant 9 (Week 12)100 percent adherence
Secondary

Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12

AMPL of the individual participant during the active assessment phase was reported.

Time frame: Week 12

Population: AMPL analysis set included all enrolled participants who had AMPL data for at least 1 visit. Here, 'N' (number of participants analyzed) signifies those participants who were evaluable for this endpoint.

ArmMeasureGroupValue (NUMBER)
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 1- ARIPIPRAZOLE596.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 1- DEHYDROARIPIPRAZOLE139.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 2- OLANZAPINE27.30 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 2- PALIPERIDONE45.10 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 3- 7-OH QUETIAPINE43.10 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 3-NORQUETIAPINE660.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 3-QUETIAPINE280.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 3-QUETIAPINE SULFOXIDE660.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 5-7-OH QUETIAPINE7.72 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 5-NORQUETIAPINE153.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 5-QUETIAPINE50.30 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 5-QUETIAPINE SULFOXIDE321.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 6-ARIPIPRAZOLE464.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 6-DEHYDROARIPIPRAZOLE112.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 7-PALIPERIDONE31.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 7-RISPERIDONE26.20 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 8-ARIPIPRAZOLE168.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 8-DEHYDROARIPIPRAZOLE33.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 9- 7-OH QUETIAPINE0.200 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 9- NORQUETIAPINE2.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 9- PALIPERIDONE0.100 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 9- QUETIAPINE2.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 9- QUETIAPINE SULFOXIDE2.00 nanogram per milliliter
Cohort 1Antipsychotic Medication Plasma Levels (AMPL) During the Active Assessment Phase at Week 12Participant 9- RISPERIDONE0.100 nanogram per milliliter
Secondary

Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12

Clinical Global Impression-Severity (CGI-S) rating scale used to rate the severity of a participant's overall clinical condition on a 7-point scale ranging from 1 (not ill) to 7 (extremely severe). Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.

Time frame: Week 0, Week 12

Population: All enrolled participants who had a baseline CASP evaluation were included in the efficacy analysis set. One participant (Participant 4) was not analyzed at Week 12 due to discontinuation caused by death.

ArmMeasureGroupValue (NUMBER)
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 6 (Week 12)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 7 (Week 0)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 6 (Week 0)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 1 (Week 0)4 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 1 (Week 12)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 2 (Week 0)4 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 2 (Week 12)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 3 (Week 0)4 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 3 (Week 12)4 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 4 (Week 0)5 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 5 (Week 0)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 5 (Week 12)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 7 (Week 12)4 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 8 (Week 0)4 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 8 (Week 12)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 9 (Week 0)3 units on a scale
Cohort 1Clinical Global Impression-Severity (CGI-S) Score at Week 0 and 12Participant 9 (Week 12)3 units on a scale
Secondary

Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12

The CRS is an ordinal scale filled by the clinician. The scores range from 1 to 7 that were used to quantify the clinician's assessment of treatment adherence by the patient. Higher scores indicate greater adherence. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.

Time frame: Week 0, Week 12

Population: All enrolled participants who had a baseline CASP evaluation were included in the efficacy analysis set. One participant (Participant 4) was not analyzed at Week 12 due to discontinuation caused by death.

ArmMeasureGroupValue (NUMBER)
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 1 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 1 (Week 12)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 2 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 2 (Week 12)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 3 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 3 (Week 12)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 4 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 5 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 5 (Week 12)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 6 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 6 (Week 12)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 7 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 7 (Week 12)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 8 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 8 (Week 12)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 9 (Week 0)7 units on a scale
Cohort 1Clinician's Rating Scale of Adherence (CRS) Score at Week 0 and 12Participant 9 (Week 12)7 units on a scale
Secondary

Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12

The DPSS is a clinician-rated scale used to rate 8 domains commonly seen in patients with psychotic disorders. Each domain was rated on a 5-point scale (0 to 4) with anchored description of endpoints. Total score was computed by summing the scores of individual items (range of 0-32). Higher scores represent more severe condition. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.

Time frame: Week 0, Week 12

Population: All enrolled participants who had a baseline CASP evaluation were included in the efficacy analysis set. One participant (Participant 4) was not analyzed at Week 12 due to discontinuation caused by death.

ArmMeasureGroupValue (NUMBER)
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 1 (Week 0)12 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 1 (Week 12)4 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 2 (Week 0)8 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 2 (Week 12)2 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 3 (Week 0)8 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 3 (Week 12)8 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 4 (Week 0)14 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 5 (Week 0)9 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 5 (Week 12)4 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 6 (Week 0)7 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 6 (Week 12)4 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 7 (Week 0)5 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 7 (Week 12)8 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 8 (Week 0)4 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 8 (Week 12)4 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 9 (Week 0)4 units on a scale
Cohort 1Dimensions of Psychosis Symptom Severity Scale (DPSS) Total Score at Week 0 and 12Participant 9 (Week 12)6 units on a scale
Secondary

Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)

The CASP and data on concomitant medications and psychosocial treatments were used to evaluate the impact of AMPL results on other aspects of clinical decision making.

Time frame: Up to Week 12

Population: All enrolled participants who had a baseline CASP evaluation were included in the efficacy analysis set. Here, 'N' (number of participants analyzed) signifies those participants who were evaluable for this endpoint.

ArmMeasureGroupValue (NUMBER)
Cohort 1Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)Side Effects Of Medication3 participants
Cohort 1Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)Attitude Toward Treatment2 participants
Cohort 1Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)Report of Increased Symptoms4 participants
Cohort 1Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)Report of Decrease in Symptoms3 participants
Cohort 1Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)Patient Still Symptomatic1 participants
Cohort 1Number of Participants With Factors Considered in Clinical Decision as Assessed by Clinical Assessment of the Schizophrenia Patient (CASP)Patient Ideation1 participants
Secondary

Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12

The PSS is a brief scale designed to capture a psychiatric patient's satisfaction with a clinician. The scale covers 6 domains: Trust (3 items), Communication (3 items), Exploration of Ideas/Options (2 items), Body Language (2 items), Active Listening (4 items), and Miscellaneous Items (6 items). Out of the 20 items, the first 19 are scored on a 5-point Likert Scale (1=strongly disagree, 2=disagree, 3=satisfactory, 4=agree, 5=strongly agree). The last question (6f) is a free-response question asking for input on how the clinician might improve. Sum of scores of individual items give a total score (range 9-95). Higher scores indicate greater degree of satisfaction. Due to early study termination collected data was not summarized. Hence, individual data for each participant was reported.

Time frame: Week 0, Week 12

Population: All enrolled participants who had a baseline CASP evaluation were included in the efficacy analysis set. One participant (Participant 4) was not analyzed at Week 12 due to discontinuation caused by death.

ArmMeasureGroupValue (NUMBER)
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 1 (Week 0)76 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 1 (Week 12)76 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 2 (Week 0)52 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 2 (Week 12)57 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 3 (Week 0)57 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 3 (Week 12)57 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 4 (Week 0)48 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 5 (Week 0)66 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 5 (Week 12)64 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 6 (Week 0)76 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 6 (Week 12)76 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 7 (Week 0)76 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 7 (Week 12)72 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 8 (Week 0)63 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 8 (Week 12)72 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 9 (Week 0)71 units on a scale
Cohort 1Patient Satisfaction Survey (PSS) Total Score at Week 0 and 12Participant 9 (Week 12)76 units on a scale

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026