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Trial · NCT00731549

Intramuscular Depot Formulation of Aripiprazole as Maintenance Treatment in Patients With Schizophrenia

NCT00731549, Phase 3, Completed, Otsuka Pharmaceutical Development & Commercialization, Inc.; results first posted 2014-11-11

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Intramuscular Depot Formulation of Aripiprazole as Maintenance Treatment in Patients With Schizophrenia. Trials, record NCT00731549. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00731549

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Intramuscular Depot Formulation of Aripiprazole as Maintenance Treatment in Patients With Schizophrenia
NCT number
NCT00731549
Status
Completed
Phases
Phase 3
Enrollment
1,081 participants, actual
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Conditions
Schizophrenia
Interventions
Aripiprazole IM Depot
First posted
2008-08-11
Last updated
2014-11-26
Results first posted
2014-11-11

Source ClinicalTrials.gov

Registered outcomes10

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Baseline to Week 52/Last visit
"Stable" was defined as meeting all of the following criteria: Outpatient status; Positive and negative syndrome scale (PANSS) total score ≤ 80; Lack of specific psychotic symptoms on the PANSS as measured by a score of ≤ 4 on each of the following items (possible scores of 1 to 7 for each item): 1) conceptual disorganization 2) suspiciousness 3) hallucinatory behavior 4) unusual thought content; Clinical Global Impression of Severity (CGI-S) ≤ 4 (moderately ill); and Clinical Global Impression for Severity of Suicidality (CGI-SS) ≤ 2 (mildly suicidal) on Part 1 and ≤ 5 (minimally worsened) on Part 2. The percentage of stable participants at baseline who remain stable at endpoint (last visit) is described here.
SecondaryPercentage of Participants Meeting Exacerbation of Psychotic Symptoms/Impending Relapse Criteria.Weeks 2,4,8,12,16,20,24,28,32,36,40,44,48,52, and Last visit (upto 4 weeks ± 3 days after completion or withdrawal)
"Impending relapse criteria" was defined as meeting all the following criteria: 1) Clinical Global Impression of Improvement (CGI-I) ≥ 5 (minimally worse), AND an increase to score of \>4 and absolute increase of ≥ 2 on the individual PANSS items (conceptual disorganization, hallucinatory behavior, suspiciousness, unusual thought content); or an increase to score \>4 and absolute increase of ≥ 4 on the combined 4 PANSS items on any of these PANSS items (conceptual disorganization, hallucinatory behavior, suspiciousness, unusual thought content) OR 2) Hospitalization due to worsening of psychotic symptoms, but excluding hospitalization for psychosocial reasons, OR 3) CGI-SS score of 4 (severely suicidal) or 5 (attempted suicide) on Part 1 and/or 6 (much worse) or 7 (very much worse) on Part 2, OR 4) Violent behavior resulting in clinically relevant self-injury, injury to another person, or property damage.
SecondaryPercentage of Participants Achieving Remission.Overall remission from Weeks 2,4,8,12,16,20,24,28,32,36,40,44,48 and 52
Remission is defined as a score of ≤ 3 on each of the following specific PANSS items, maintained for a period of six months: delusions, unusual thought content, hallucinatory behavior, conceptual disorganization, mannerisms/posturing, blunted affect, social withdrawal, and lack of spontaneity.
SecondaryPercentage of Participants Stable at Baseline and Remaining Stable at Week 28.Baseline to Week 28
"Stable" was defined as meeting all of the following criteria: Outpatient status; PANSS total score ≤ 80; Lack of specific psychotic symptoms on the PANSS as measured by a score of ≤ 4 on each of the following items (possible scores of 1 to 7 for each item): 1) conceptual disorganization 2) suspiciousness 3) hallucinatory behavior 4) unusual thought content; Clinical Global Impression of Severity (CGI-S) ≤ 4 (moderately ill); and Clinical Global Impression for Severity of Suicidality (CGI-SS) ≤ 2 (mildly suicidal) on Part 1 and ≤ 5 (minimally worsened) on Part 2. The percentage of stable participants at baseline who remain stable at Week 28 is described here.
SecondaryPercentage of Participants With Time to First Exacerbation of Psychotic Symptoms/Impending Relapse.Baseline to Week 52
Participants who first time meet relapse criteria were considered as having an event at date of exacerbation of psychotic symptoms/impending relapse. Time to first event was calculated as the earliest date of meeting one of relapse criteria. Limited concurrent treatment with oral aripiprazole was permitted as rescue therapy.
SecondaryMean Change From Baseline to Endpoint (Last Visit) in Positive and Negative Syndrome Scale (PANSS) Total Score.Baseline, Weeks 12, 24, 52 and last visit
PANSS total score (range 30-210) is the sum of the rating scores for 7 positive scale items, 7 negative scale items and 16 general psychopathology scale items from the PANSS scale. PANSS positive subscale score (range 7-49) is the sum of the rating scores for the 7 positive scale items from the PANSS scale. PANSS negative subscale score (range 7-49) is the sum of the rating scores for the 7 negative scale items from the PANSS scale. The severity of each scale is rated on a 7-point scale, with a score of 1 indicating the absence of symptoms and a score of 7 indicating extremely severe symptoms.
SecondaryMean Change From Baseline in Clinical Global Impression of Severity (CGI-S) Score.Baseline, Weeks 12, 24, 52 and last visit
To assess CGI-S, the rater or physician will answer the following question: "Considering your total clinical experience with this particular population, how mentally ill is the participant at this time?" Response choices include: 0 = not assessed; 1 = normal, not ill at all; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; and 7 = among the most extremely ill participants.
SecondaryMean Change From Baseline to Endpoint in PANSS Positive and Negative Subscales.Baseline, Weeks 12, 24, 52 and last visit
PANSS positive subscale score (range 7-49) is the sum of the rating scores for the 7 positive scale items from the PANSS scale. Positive subscale consists of 7 positive symptom constructs: delusions, conceptual disorganization, hallucinatory behavior, excitement, grandiosity, suspiciousness/persecution, and hostility). PANSS negative subscale score (range 7-49) is the sum of the rating scores for the 7 negative scale items from the PANSS scale. Negative subscale consists of 7 negative symptom constructs: blunted affect, emotional withdrawal, poor rapport, passive pathetic withdrawal, difficulty in abstract thinking, lack of spontaneity and flow of conversation, stereotyped thinking). The severity of each scale is rated on a 7-point scale, with a score of 1 indicating the absence of symptoms and a score of 7 indicating extremely severe symptoms.
SecondaryMean Clinical Global Impression of Improvement (CGI-I) Score.Weeks 2, 4, 12, 24, 52 and last visit
To assess CGI-I the rater or physician will rate the participant's total improvement whether or not it is due entirely to drug treatment. All responses will be compared to the participants condition at baseline. Response choices include: 0 = not assessed, 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, and 7 = very much worse.
SecondaryPercentage of Participants Who Discontinued Due to All Causes.Baseline to Week 52Participants who discontinued due to any cause were noted. Limited concurrent treatment with oral aripiprazole was permitted as rescue therapy.

Outcomes10

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Baseline to Week 52/Last visit
All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. N defines number of stable participants at baseline who were evaluated at the specified trial week.
Percentage of participantsNUMBER
SECONDARYPercentage of Participants Meeting Exacerbation of Psychotic Symptoms/Impending Relapse Criteria.Weeks 2,4,8,12,16,20,24,28,32,36,40,44,48,52, and Last visit (upto 4 weeks ± 3 days after completion or withdrawal)All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. N defines number of participants evaluated at the specified trial week.Percentage of participantsNUMBER
SECONDARYPercentage of Participants Achieving Remission.Overall remission from Weeks 2,4,8,12,16,20,24,28,32,36,40,44,48 and 52All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. N defines number of participants evaluated at the specified trial week.Percentage of participantsNUMBER
SECONDARYPercentage of Participants Stable at Baseline and Remaining Stable at Week 28.Baseline to Week 28
All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. N defines number of stable participants at baseline who were evaluated at the specified trial week.
Percentage of participantsNUMBER
SECONDARYPercentage of Participants With Time to First Exacerbation of Psychotic Symptoms/Impending Relapse.Baseline to Week 52
All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. Number of participants analyzed had available assessments for evaluation of exacerbation of psychotic symptoms/impending relapse.
Percentage of participantsNUMBER
SECONDARYMean Change From Baseline to Endpoint (Last Visit) in Positive and Negative Syndrome Scale (PANSS) Total Score.Baseline, Weeks 12, 24, 52 and last visit
All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. Number of participants analyzed with baseline or at least one postbaseline assessment are included here.
Units on a scaleMEAN
SECONDARYMean Change From Baseline in Clinical Global Impression of Severity (CGI-S) Score.Baseline, Weeks 12, 24, 52 and last visit
All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. Number of participants analyzed with baseline or at least one postbaseline assessment are included here.
Units on a scaleMEAN
SECONDARYMean Change From Baseline to Endpoint in PANSS Positive and Negative Subscales.Baseline, Weeks 12, 24, 52 and last visit
All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. Number of participants analyzed with baseline or at least one postbaseline assessment are included here.
Units on a scaleMEAN
SECONDARYMean Clinical Global Impression of Improvement (CGI-I) Score.Weeks 2, 4, 12, 24, 52 and last visit
All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included. Number of participants analyzed with baseline or at least one postbaseline assessment are included here.
Units on a scaleMEAN
SECONDARYPercentage of Participants Who Discontinued Due to All Causes.Baseline to Week 52All participants who entered Phase 3 and have at least one post-baseline efficacy evaluation in Phase 3 are included.Percentage of participantsNUMBER

Results by group60

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotBaseline (N=1075)100Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 2 (N=1023)99.02Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 4 (N=1045)99.14Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 8 (N=1009)98.51Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 12 (N=988)97.47Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 16 (N=951)98.42Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 20 (N=919)98.15Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 24 (N=880)99.20Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 28 (N=854)98.95Percentage of participants
Percentage of Stable Participants at Baseline Who Remained Stable at Endpoint (Last Visit).Aripiprazole 400/300 mg IM DepotWeek 32 (N=838)99.16Percentage of participants

Participant flow3

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDAripiprazole 400/300 mg IM Depot1,081
Overall StudyCOMPLETEDAripiprazole 400/300 mg IM Depot858
Overall StudyNOT COMPLETEDAripiprazole 400/300 mg IM Depot223

Adverse events71

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherNasopharyngitisInfections and infestationsAripiprazole 400/300 mg IM Depot761,081
otherHeadacheNervous system disordersAripiprazole 400/300 mg IM Depot821,081
otherAnxietyPsychiatric disordersAripiprazole 400/300 mg IM Depot731,081
otherInsomniaPsychiatric disordersAripiprazole 400/300 mg IM Depot711,081
seriousAnaemiaBlood and lymphatic system disordersAripiprazole 400/300 mg IM Depot11,081
seriousAtrial fibrillationCardiac disordersAripiprazole 400/300 mg IM Depot11,081
seriousCardiac arrestCardiac disordersAripiprazole 400/300 mg IM Depot11,081
seriousCardiac failureCardiac disordersAripiprazole 400/300 mg IM Depot11,081
seriousCardiac failure acuteCardiac disordersAripiprazole 400/300 mg IM Depot11,081
seriousCardio-respiratory arrestCardiac disordersAripiprazole 400/300 mg IM Depot11,081

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityAripiprazole 400/300 mg IM Depot
Total, other adverse eventsAripiprazole 400/300 mg IM Depot2541,081
Total, serious adverse eventsAripiprazole 400/300 mg IM Depot951,081

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00731549

GET https://conductscience.org/api/trials/v1/NCT00731549/results?page=2