Skip to content

Evaluation of Efficacy and Safety of Iloperidone in the Acute Treatment of Manic or Mixed Episodes Associated With Bipolar I Disorder

A Multicenter, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of Iloperidone for 4 Weeks in the Treatment of Patients With Acute Manic Episodes Associated With Bipolar I Disorder

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04819776
Enrollment
417
Registered
2021-03-29
Start date
2021-03-22
Completion date
2023-08-16
Last updated
2024-04-18

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

Conditions

Bipolar I Disorder

Brief summary

The aim of this study is to investigate the efficacy, safety, and tolerability of iloperidone compared with placebo in treating acute manic or mixed episodes associated with Bipolar I Disorder.

Interventions

Oral iloperidone

DRUGIloperidone Placebo

Oral placebo

Sponsors

Vanda Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Male or female patients 18 to 65 years of age (inclusive) * Diagnosed with bipolar I disorder, manic or mixed-type, per DSM-5 criteria * Voluntary hospitalization for current manic episode

Exclusion criteria

* Patients with a DSM-5 diagnosis of a psychiatric disorder other than bipolar I disorder that was the primary focus of treatment within the previous six months * Patients who are experiencing a first manic episode or meeting criteria for rapid cycling

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline to Week 4 in Young Mania Rating Scale (YMRS) Total ScoreWeek 4The Young Mania Rating Scale (YMRS) is an 11-item scale. Individual item scores are summed for a total possible score of 0 (best) to 60 (worst).

Countries

Bulgaria, Poland, United States

Participant flow

Pre-assignment details

Safety analyses included patients who received 1 or more doses of study medication. Of the 417 randomized, 414 received at least one dose of study medication.

Participants by arm

ArmCount
Iloperidone
Iloperidone: Oral iloperidone
206
Placebo
Iloperidone Placebo: Oral placebo
208
Total414

Baseline characteristics

CharacteristicIloperidonePlaceboTotal
Age, Continuous42.9 years
STANDARD_DEVIATION 12.76
43.9 years
STANDARD_DEVIATION 12.55
43.4 years
STANDARD_DEVIATION 12.65
Race/Ethnicity, Customized
American Indian or Alaska Native
1 Participants3 Participants4 Participants
Race/Ethnicity, Customized
Asian
0 Participants3 Participants3 Participants
Race/Ethnicity, Customized
Black or African American
62 Participants55 Participants117 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Other
9 Participants15 Participants24 Participants
Race/Ethnicity, Customized
White
133 Participants132 Participants265 Participants
Sex: Female, Male
Female
90 Participants96 Participants186 Participants
Sex: Female, Male
Male
116 Participants112 Participants228 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 2060 / 208
other
Total, other adverse events
88 / 20625 / 208
serious
Total, serious adverse events
4 / 2061 / 208

Outcome results

Primary

Change From Baseline to Week 4 in Young Mania Rating Scale (YMRS) Total Score

The Young Mania Rating Scale (YMRS) is an 11-item scale. Individual item scores are summed for a total possible score of 0 (best) to 60 (worst).

Time frame: Week 4

Population: Efficacy analyses were based on the Intent-To-Treat (ITT) population, which included all randomized patients who received a dose of study drug and had at least one valid post-baseline efficacy measurement while on study medication. Of the 417 randomized, 392 received at least one dose of study medication and had at least one valid post-baseline efficacy measurement.

ArmMeasureValue (MEAN)Dispersion
IloperidoneChange From Baseline to Week 4 in Young Mania Rating Scale (YMRS) Total Score-14.0 Change from Baseline in YMRS Total ScoreStandard Error 0.64
PlaceboChange From Baseline to Week 4 in Young Mania Rating Scale (YMRS) Total Score-10.0 Change from Baseline in YMRS Total ScoreStandard Error 0.63

Source: ClinicalTrials.gov · Data processed: Feb 7, 2026