Trial Outcomes & Findings for A Clinical Study of an Investigational Drug for the Treatment of Major Depressive Episode Associated With Bipolar I Disorder. (NCT NCT05169710)

NCT ID: NCT05169710

Last Updated: 2024-10-03

Results Overview

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician-rated assessment of the subject's level of depression. The measure contains 10 items that measure apparent and reported sadness, inner tension, reduced sleep and appetite, difficulty concentrating, lassitude, inability to feel, and pessimistic and suicidal thoughts, each ranging from 0 to 6. The MADRS total score ranges from 0 to 60, with higher scores indicating increased depressive symptoms

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

83 participants

Primary outcome timeframe

6 Weeks

Results posted on

2024-10-03

Participant Flow

All participants had to go through at least 3 days or 5 half-lives antipsychotic medication washout.In total 83 Participants are Randomized in the trial, however one of the participant is randomized in error and was discontinued from study before taking any IP, So this subject is not considered in analysis population. Hence we have difference of 1 subject in Enrollment Number.

Participant milestones

Participant milestones
Measure
Placebo
Placebo: Placebo tablet (supplied in two tablets)
SEP-4199 CR 200 mg
SEP-4199 CR 200 mg: SEP-4199 CR 200 mg Tablet (supplied in one 200mg tablet and one placebo tablet)
SEP-4199 CR 400 mg
SEP-4199 CR 400 mg: SEP-4199 CR 400 mg tablet (supplied in two 200mg tablets)
Overall Study
STARTED
27
27
28
Overall Study
COMPLETED
24
22
25
Overall Study
NOT COMPLETED
3
5
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
Placebo: Placebo tablet (supplied in two tablets)
SEP-4199 CR 200 mg
SEP-4199 CR 200 mg: SEP-4199 CR 200 mg Tablet (supplied in one 200mg tablet and one placebo tablet)
SEP-4199 CR 400 mg
SEP-4199 CR 400 mg: SEP-4199 CR 400 mg tablet (supplied in two 200mg tablets)
Overall Study
Adverse Event
1
2
2
Overall Study
Lost to Follow-up
0
0
1
Overall Study
Withdrawal by Subject
2
1
0
Overall Study
Other Study Discontinuation Reason
0
2
0

Baseline Characteristics

A Clinical Study of an Investigational Drug for the Treatment of Major Depressive Episode Associated With Bipolar I Disorder.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=27 Participants
Placebo: Placebo tablet (supplied in two tablets)
SEP-4199 CR 200 mg
n=27 Participants
SEP-4199 CR 200 mg: SEP-4199 CR 200 mg Tablet (supplied in one 200mg tablet and one placebo tablet)
SEP-4199 CR 400 mg
n=28 Participants
SEP-4199 CR 400 mg: SEP-4199 CR 400 mg tablet (supplied in two 200mg tablets)
Total
n=82 Participants
Total of all reporting groups
Age, Continuous
43.9 Years
STANDARD_DEVIATION 11.34 • n=5 Participants
46.7 Years
STANDARD_DEVIATION 11.67 • n=7 Participants
42.8 Years
STANDARD_DEVIATION 12.53 • n=5 Participants
44.5 Years
STANDARD_DEVIATION 11.83 • n=4 Participants
Sex: Female, Male
Female
18 Participants
n=5 Participants
17 Participants
n=7 Participants
17 Participants
n=5 Participants
52 Participants
n=4 Participants
Sex: Female, Male
Male
9 Participants
n=5 Participants
10 Participants
n=7 Participants
11 Participants
n=5 Participants
30 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Asian
10 Participants
n=5 Participants
9 Participants
n=7 Participants
10 Participants
n=5 Participants
29 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
3 Participants
n=4 Participants
Race (NIH/OMB)
White
16 Participants
n=5 Participants
18 Participants
n=7 Participants
16 Participants
n=5 Participants
50 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Region of Enrollment
United States
6 Participants
n=5 Participants
5 Participants
n=7 Participants
7 Participants
n=5 Participants
18 Participants
n=4 Participants
Region of Enrollment
Bulgaria
11 Participants
n=5 Participants
12 Participants
n=7 Participants
11 Participants
n=5 Participants
34 Participants
n=4 Participants
Region of Enrollment
Romania
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Region of Enrollment
Japan
10 Participants
n=5 Participants
9 Participants
n=7 Participants
10 Participants
n=5 Participants
29 Participants
n=4 Participants
Baseline Montgomery-Asberg Depression Rating Scale( MADRS )Total Score
36.6 units on a scale
STANDARD_DEVIATION 5.64 • n=5 Participants
37.5 units on a scale
STANDARD_DEVIATION 6.22 • n=7 Participants
37.6 units on a scale
STANDARD_DEVIATION 4.92 • n=5 Participants
37.2 units on a scale
STANDARD_DEVIATION 5.55 • n=4 Participants
Baseline Clinical Global Impressions - Severity: Bipolar Version (CGI-BP-S) score (depression)
5 units on a scale
STANDARD_DEVIATION 0.65 • n=5 Participants
5 units on a scale
STANDARD_DEVIATION 0.68 • n=7 Participants
4.9 units on a scale
STANDARD_DEVIATION 0.69 • n=5 Participants
5 units on a scale
STANDARD_DEVIATION 0.66 • n=4 Participants

PRIMARY outcome

Timeframe: 6 Weeks

Population: ITT population

Montgomery-Asberg Depression Rating Scale (MADRS) is a clinician-rated assessment of the subject's level of depression. The measure contains 10 items that measure apparent and reported sadness, inner tension, reduced sleep and appetite, difficulty concentrating, lassitude, inability to feel, and pessimistic and suicidal thoughts, each ranging from 0 to 6. The MADRS total score ranges from 0 to 60, with higher scores indicating increased depressive symptoms

Outcome measures

Outcome measures
Measure
Placebo
n=27 Participants
Placebo: Placebo tablet (supplied in two tablets)
SEP-4199 CR 200 mg
n=27 Participants
SEP-4199 CR 200 mg: SEP-4199 CR 200 mg Tablet (supplied in one 200mg tablet and one placebo tablet)
SEP-4199 CR 400 mg
n=28 Participants
SEP-4199 CR 400 mg: SEP-4199 CR 400 mg tablet (supplied in two 200mg tablets)
Change From Baseline in Montgomery-Asberg Depression Rating Scale (MADRS) Total Score at Week 6
-10.33 units on a scale
Standard Error 2.004
-14.27 units on a scale
Standard Error 2.055
-16.67 units on a scale
Standard Error 2.014

SECONDARY outcome

Timeframe: 6 Weeks

Population: ITT population

Clinical Global Impressions Severity: Bipolar Version (CGI-BP-S) score (depression) is a single value, clinician-rated assessment of illness severity, and 7-point scale with range from 1 = normal, not at all ill; 2 = borderline mentally ill; 3 = mildly ill; 4 = moderately ill; 5 = markedly ill; 6 = severely ill; 7 = among the most extremely ill subjects. A higher score is associated with greater illness severity.

Outcome measures

Outcome measures
Measure
Placebo
n=27 Participants
Placebo: Placebo tablet (supplied in two tablets)
SEP-4199 CR 200 mg
n=27 Participants
SEP-4199 CR 200 mg: SEP-4199 CR 200 mg Tablet (supplied in one 200mg tablet and one placebo tablet)
SEP-4199 CR 400 mg
n=28 Participants
SEP-4199 CR 400 mg: SEP-4199 CR 400 mg tablet (supplied in two 200mg tablets)
Change From Baseline in Global Severity Assessed by the Clinical Global Impressions Severity: Bipolar Version (CGI-BP-S) Score (Depression) at Week 6
-1.16 units on a scale
Standard Error 0.214
-1.26 units on a scale
Standard Error 0.222
-1.46 units on a scale
Standard Error 0.217

Adverse Events

Placebo

Serious events: 0 serious events
Other events: 7 other events
Deaths: 0 deaths

SEP-4199 CR 200 mg

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

SEP-4199 CR 400 mg

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Placebo
n=27 participants at risk
Placebo: Placebo tablet (supplied in two tablets)
SEP-4199 CR 200 mg
n=27 participants at risk
SEP-4199 CR 200 mg: SEP-4199 CR 200 mg Tablet (supplied in one 200mg tablet and one placebo tablet)
SEP-4199 CR 400 mg
n=28 participants at risk
SEP-4199 CR 400 mg: SEP-4199 CR 400 mg tablet (supplied in two 200mg tablets)
Nervous system disorders
Somnolence
7.4%
2/27 • Number of events 2 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
0.00%
0/27 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
7.1%
2/28 • Number of events 3 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
Nervous system disorders
Headache
11.1%
3/27 • Number of events 4 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
0.00%
0/27 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
0.00%
0/28 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
Gastrointestinal disorders
Nausea
7.4%
2/27 • Number of events 2 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
0.00%
0/27 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
7.1%
2/28 • Number of events 2 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
Investigations
Electrocardiogram QT prolonged
0.00%
0/27 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
3.7%
1/27 • Number of events 1 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.
7.1%
2/28 • Number of events 2 • Up to 7 weeks
Adverse events were untoward medical occurrences that occurred on or after the first dose of study medication.

Additional Information

CNS Medical Director

Sumitomo Pharma America Inc.

Phone: 1-866-503-6351

Results disclosure agreements

  • Principal investigator is a sponsor employee In the event the Study is part of a multi-center study, the first publication of the results of the Study shall be made in conjunction with the results of other participating study sites as a multi-center publication; provided however, if a multi-center publication is not forthcoming within twenty-four (24) months following completion of the Study at all sites, Institution and Investigator shall be free to publish.
  • Publication restrictions are in place

Restriction type: OTHER