Trial Outcomes & Findings for Multicenter Study of Lumateperone as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder (NCT NCT05061706)

NCT ID: NCT05061706

Last Updated: 2025-05-09

Results Overview

Change from baseline to Day 43 in the Montgomery-Åsberg Depression Rating Scale (MADRS) total score. The MADRS is a clinician-rated 10 item scale to assess depressive symptoms. Each item is rated on a 7-point scale from 0-6. The total score ranges from 0 to 60 with a higher score indicating increased severity of depressive symptoms.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

480 participants

Primary outcome timeframe

Day 43

Results posted on

2025-05-09

Participant Flow

Participant milestones

Participant milestones
Measure
Lumateperone 42 mg
Lumateperone: Lumateperone 42 mg capsules administered orally, once daily.
Placebo
Placebo: Matching capsules administered orally, once daily.
Overall Study
STARTED
242
238
Overall Study
COMPLETED
205
224
Overall Study
NOT COMPLETED
37
14

Reasons for withdrawal

Reasons for withdrawal
Measure
Lumateperone 42 mg
Lumateperone: Lumateperone 42 mg capsules administered orally, once daily.
Placebo
Placebo: Matching capsules administered orally, once daily.
Overall Study
Adverse Event
29
1
Overall Study
Lack of Efficacy
0
1
Overall Study
Lost to Follow-up
2
2
Overall Study
Protocol Violation
3
1
Overall Study
Withdrawal by Subject
3
9

Baseline Characteristics

Multicenter Study of Lumateperone as Adjunctive Therapy in the Treatment of Patients With Major Depressive Disorder

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Lumateperone 42 mg
n=242 Participants
Lumateperone: Lumateperone 42 mg capsules administered orally, once daily.
Placebo
n=238 Participants
Placebo: Matching capsules administered orally, once daily.
Total
n=480 Participants
Total of all reporting groups
Age, Continuous
45.6 years
STANDARD_DEVIATION 12.79 • n=5 Participants
46.4 years
STANDARD_DEVIATION 12.16 • n=7 Participants
46.0 years
STANDARD_DEVIATION 12.47 • n=5 Participants
Sex: Female, Male
Female
169 Participants
n=5 Participants
165 Participants
n=7 Participants
334 Participants
n=5 Participants
Sex: Female, Male
Male
73 Participants
n=5 Participants
73 Participants
n=7 Participants
146 Participants
n=5 Participants
Race/Ethnicity, Customized
White
235 Participants
n=5 Participants
223 Participants
n=7 Participants
458 Participants
n=5 Participants
Race/Ethnicity, Customized
Black or African American
6 Participants
n=5 Participants
8 Participants
n=7 Participants
14 Participants
n=5 Participants
Race/Ethnicity, Customized
Asian
1 Participants
n=5 Participants
3 Participants
n=7 Participants
4 Participants
n=5 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Race/Ethnicity, Customized
Multiple
0 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
Region of Enrollment
Sweden
1 participants
n=5 Participants
1 participants
n=7 Participants
2 participants
n=5 Participants
Region of Enrollment
Argentina
31 participants
n=5 Participants
30 participants
n=7 Participants
61 participants
n=5 Participants
Region of Enrollment
United States
78 participants
n=5 Participants
76 participants
n=7 Participants
154 participants
n=5 Participants
Region of Enrollment
Poland
83 participants
n=5 Participants
78 participants
n=7 Participants
161 participants
n=5 Participants
Region of Enrollment
Bulgaria
33 participants
n=5 Participants
35 participants
n=7 Participants
68 participants
n=5 Participants
Region of Enrollment
Germany
16 participants
n=5 Participants
18 participants
n=7 Participants
34 participants
n=5 Participants
Montgomery-Asberg Depression Rating Scale (MADRS)
30.8 units on a scale
STANDARD_DEVIATION 3.87 • n=5 Participants
31.5 units on a scale
STANDARD_DEVIATION 3.98 • n=7 Participants
31.1 units on a scale
STANDARD_DEVIATION 3.94 • n=5 Participants

PRIMARY outcome

Timeframe: Day 43

Population: The analysis of the primary and secondary efficacy outcome measures are based on the Modified Intent-to-Treat (mITT) Population which included 469 patients. The mITT Population includes all randomized patients who received at least 1 dose of study drug, had a baseline MADRS total score, and who had at least one on-study drug, postbaseline MADRS total score.

Change from baseline to Day 43 in the Montgomery-Åsberg Depression Rating Scale (MADRS) total score. The MADRS is a clinician-rated 10 item scale to assess depressive symptoms. Each item is rated on a 7-point scale from 0-6. The total score ranges from 0 to 60 with a higher score indicating increased severity of depressive symptoms.

Outcome measures

Outcome measures
Measure
Lumateperone 42 mg
n=232 Participants
Lumateperone: Lumateperone 42 mg capsules administered orally, once daily.
Placebo
n=237 Participants
Placebo: Matching capsules administered orally, once daily.
Montgomery-Asberg Depression Rating Scale
-14.7 units on a scale
Standard Error 0.56
-10.2 units on a scale
Standard Error 0.54

SECONDARY outcome

Timeframe: Day 43

Change from baseline to Day 43 in the Clinical Global Impression Scale-Severity (CGI-S). The CGI-S is a clinician-rated scale to assess a patient's overall mental health. The scale ranges from 1 (normal, not at all ill) to 7 (among the most extremely ill patients).

Outcome measures

Outcome measures
Measure
Lumateperone 42 mg
n=232 Participants
Lumateperone: Lumateperone 42 mg capsules administered orally, once daily.
Placebo
n=237 Participants
Placebo: Matching capsules administered orally, once daily.
Clinical Global Impression Scale-Severity
-1.5 units on a scale
Standard Error 0.07
-1.0 units on a scale
Standard Error 0.07

Adverse Events

Lumateperone 42 mg

Serious events: 2 serious events
Other events: 138 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 54 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Lumateperone 42 mg
n=242 participants at risk
Lumateperone: Lumateperone 42 mg capsules administered orally, once daily.
Placebo
n=238 participants at risk
Placebo: Matching capsules administered orally, once daily.
Psychiatric disorders
Suicidal Ideation
0.41%
1/242 • Number of events 1 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
0.00%
0/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
Surgical and medical procedures
Polypectomy
0.41%
1/242 • Number of events 1 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
0.00%
0/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.

Other adverse events

Other adverse events
Measure
Lumateperone 42 mg
n=242 participants at risk
Lumateperone: Lumateperone 42 mg capsules administered orally, once daily.
Placebo
n=238 participants at risk
Placebo: Matching capsules administered orally, once daily.
Nervous system disorders
Dizziness
22.3%
54/242 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
3.8%
9/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
Nervous system disorders
Somnolence
16.1%
39/242 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
2.9%
7/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
Gastrointestinal disorders
Dry Mouth
14.5%
35/242 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
4.6%
11/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
Gastrointestinal disorders
Nausea
12.0%
29/242 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
3.8%
9/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
Gastrointestinal disorders
Diarrhoea
5.4%
13/242 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
0.84%
2/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
General disorders
Fatigue
5.0%
12/242 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
0.42%
1/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
Nervous system disorders
Headache
20.2%
49/242 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.
14.7%
35/238 • From signing ICF until end of study procedures (~9 weeks), including 6 weeks of double-blind treatment.

Additional Information

ITI Clinical Trials

Intra-Cellular Therapies, Inc.

Phone: 646 440-9333

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place