Trial Outcomes & Findings for Safety and Efficacy Study of Ramelteon (TAK-375) Tablets for Sublingual Administration (SL) in Adults With Bipolar 1 Disorder (NCT NCT01677182)

NCT ID: NCT01677182

Last Updated: 2016-03-16

Results Overview

The MADRS is a clinician rated, validated and widely used scale to measure overall severity of depressive symptoms. It consists of 10-item rated from 0(normal) to 6(most abnormal) with a total score range from 0 to 60. Higher scores indicate greater severity of symptoms.

Recruitment status

TERMINATED

Study phase

PHASE3

Target enrollment

535 participants

Primary outcome timeframe

Baseline and Week 6

Results posted on

2016-03-16

Participant Flow

Participants took part at 98 sites in Bulgaria, the Czech Republic, Germany, Great Britain, Poland, Romania, Russia, Serbia, Ukraine, and the United States from 29 August 2012 to 03 September 2014.

Participants with a historical diagnosis of bipolar 1 disorder were enrolled in 1 of 3 treatment groups as follows: placebo; TAK-375 0.1 milligram (mg); TAK-375 0.4 mg.

Participant milestones

Participant milestones
Measure
Placebo
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Overall Study
STARTED
184
169
182
Overall Study
COMPLETED
150
141
143
Overall Study
NOT COMPLETED
34
28
39

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Overall Study
Adverse Event
2
1
8
Overall Study
Protocol Violation
5
1
4
Overall Study
Lost to Follow-up
4
0
3
Overall Study
Withdrawal by Subject
7
12
10
Overall Study
Study termination
12
9
11
Overall Study
Lack of Efficacy
3
0
1
Overall Study
Other reasons
1
5
2

Baseline Characteristics

Safety and Efficacy Study of Ramelteon (TAK-375) Tablets for Sublingual Administration (SL) in Adults With Bipolar 1 Disorder

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo
n=184 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=169 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=182 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Total
n=535 Participants
Total of all reporting groups
Age, Continuous
46.67 years
STANDARD_DEVIATION 11.332 • n=5 Participants
45.44 years
STANDARD_DEVIATION 11.490 • n=7 Participants
44.87 years
STANDARD_DEVIATION 11.608 • n=5 Participants
45.67 years
STANDARD_DEVIATION 11.480 • n=4 Participants
Age, Customized
Less than or equal to (<=) 50 years
105 participants
n=5 Participants
100 participants
n=7 Participants
107 participants
n=5 Participants
312 participants
n=4 Participants
Age, Customized
Greater than (>) 50 years
79 participants
n=5 Participants
69 participants
n=7 Participants
75 participants
n=5 Participants
223 participants
n=4 Participants
Sex: Female, Male
Female
119 Participants
n=5 Participants
98 Participants
n=7 Participants
108 Participants
n=5 Participants
325 Participants
n=4 Participants
Sex: Female, Male
Male
65 Participants
n=5 Participants
71 Participants
n=7 Participants
74 Participants
n=5 Participants
210 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants
n=5 Participants
10 Participants
n=7 Participants
9 Participants
n=5 Participants
31 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
63 Participants
n=5 Participants
61 Participants
n=7 Participants
63 Participants
n=5 Participants
187 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
109 Participants
n=5 Participants
98 Participants
n=7 Participants
110 Participants
n=5 Participants
317 Participants
n=4 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
1 participants
n=5 Participants
1 participants
n=7 Participants
0 participants
n=5 Participants
2 participants
n=4 Participants
Race/Ethnicity, Customized
Asian
0 participants
n=5 Participants
1 participants
n=7 Participants
2 participants
n=5 Participants
3 participants
n=4 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
1 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
3 participants
n=4 Participants
Race/Ethnicity, Customized
Black or African American
11 participants
n=5 Participants
12 participants
n=7 Participants
12 participants
n=5 Participants
35 participants
n=4 Participants
Race/Ethnicity, Customized
White
171 participants
n=5 Participants
154 participants
n=7 Participants
166 participants
n=5 Participants
491 participants
n=4 Participants
Race/Ethnicity, Customized
More than one race
0 participants
n=5 Participants
0 participants
n=7 Participants
1 participants
n=5 Participants
1 participants
n=4 Participants
Region of Enrollment
Bulgaria
31 participants
n=5 Participants
27 participants
n=7 Participants
30 participants
n=5 Participants
88 participants
n=4 Participants
Region of Enrollment
Czech Republic
9 participants
n=5 Participants
7 participants
n=7 Participants
8 participants
n=5 Participants
24 participants
n=4 Participants
Region of Enrollment
Germany
3 participants
n=5 Participants
5 participants
n=7 Participants
3 participants
n=5 Participants
11 participants
n=4 Participants
Region of Enrollment
United Kingdom
1 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
1 participants
n=4 Participants
Region of Enrollment
Poland
2 participants
n=5 Participants
4 participants
n=7 Participants
4 participants
n=5 Participants
10 participants
n=4 Participants
Region of Enrollment
Romania
8 participants
n=5 Participants
7 participants
n=7 Participants
9 participants
n=5 Participants
24 participants
n=4 Participants
Region of Enrollment
Russian Federation
12 participants
n=5 Participants
9 participants
n=7 Participants
13 participants
n=5 Participants
34 participants
n=4 Participants
Region of Enrollment
Serbia
22 participants
n=5 Participants
20 participants
n=7 Participants
25 participants
n=5 Participants
67 participants
n=4 Participants
Region of Enrollment
Ukraine
20 participants
n=5 Participants
19 participants
n=7 Participants
18 participants
n=5 Participants
57 participants
n=4 Participants
Region of Enrollment
United States
76 participants
n=5 Participants
71 participants
n=7 Participants
72 participants
n=5 Participants
219 participants
n=4 Participants
Height
168.86 centimeter (cm)
STANDARD_DEVIATION 9.227 • n=5 Participants
170.66 centimeter (cm)
STANDARD_DEVIATION 8.423 • n=7 Participants
169.80 centimeter (cm)
STANDARD_DEVIATION 8.870 • n=5 Participants
169.75 centimeter (cm)
STANDARD_DEVIATION 8.871 • n=4 Participants
Weight
80.82 kilogram (kg)
STANDARD_DEVIATION 23.503 • n=5 Participants
83.21 kilogram (kg)
STANDARD_DEVIATION 18.638 • n=7 Participants
82.38 kilogram (kg)
STANDARD_DEVIATION 19.202 • n=5 Participants
82.11 kilogram (kg)
STANDARD_DEVIATION 20.605 • n=4 Participants
Body Mass Index (BMI)
28.25 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 7.583 • n=5 Participants
28.57 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 6.130 • n=7 Participants
28.52 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 6.156 • n=5 Participants
28.44 kilogram per square meter (kg/m^2)
STANDARD_DEVIATION 6.663 • n=4 Participants
Smoking Classification
Had Never Smoked
84 participants
n=5 Participants
75 participants
n=7 Participants
79 participants
n=5 Participants
238 participants
n=4 Participants
Smoking Classification
Current Smoker
75 participants
n=5 Participants
70 participants
n=7 Participants
82 participants
n=5 Participants
227 participants
n=4 Participants
Smoking Classification
Ex-smoker
25 participants
n=5 Participants
24 participants
n=7 Participants
21 participants
n=5 Participants
70 participants
n=4 Participants
Subject Drinking Status
Had Never Drunk
97 participants
n=5 Participants
92 participants
n=7 Participants
109 participants
n=5 Participants
298 participants
n=4 Participants
Subject Drinking Status
Ex-Drinker
51 participants
n=5 Participants
41 participants
n=7 Participants
36 participants
n=5 Participants
128 participants
n=4 Participants
Subject Drinking Status
Current Drinker
36 participants
n=5 Participants
36 participants
n=7 Participants
37 participants
n=5 Participants
109 participants
n=4 Participants
Amount of Alcohol Consumed if Current Drinker
< 4 drinks per day
36 participants
n=5 Participants
36 participants
n=7 Participants
37 participants
n=5 Participants
109 participants
n=4 Participants
Amount of Alcohol Consumed if Current Drinker
>= 4 drinks per day
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
0 participants
n=4 Participants
Consumption of Caffeine
Consumer
140 participants
n=5 Participants
128 participants
n=7 Participants
144 participants
n=5 Participants
412 participants
n=4 Participants
Consumption of Caffeine
Not a consumer
44 participants
n=5 Participants
41 participants
n=7 Participants
38 participants
n=5 Participants
123 participants
n=4 Participants
Psychiatric History for response to Lithium treatment for Bipolar 1 Disorder
Failed to Respond
7 participants
n=5 Participants
7 participants
n=7 Participants
7 participants
n=5 Participants
21 participants
n=4 Participants
Psychiatric History for response to Lithium treatment for Bipolar 1 Disorder
Responded
101 participants
n=5 Participants
92 participants
n=7 Participants
100 participants
n=5 Participants
293 participants
n=4 Participants
Psychiatric History for response to Lithium treatment for Bipolar 1 Disorder
Not Applicable
69 participants
n=5 Participants
63 participants
n=7 Participants
68 participants
n=5 Participants
200 participants
n=4 Participants
Psychiatric History for response to Lithium treatment for Bipolar 1 Disorder
Unknown
7 participants
n=5 Participants
7 participants
n=7 Participants
7 participants
n=5 Participants
21 participants
n=4 Participants
Psychiatric History for response to Valproic Acid Treatment of Bipolar 1 Disorder
Failed to Respond
6 participants
n=5 Participants
8 participants
n=7 Participants
9 participants
n=5 Participants
23 participants
n=4 Participants
Psychiatric History for response to Valproic Acid Treatment of Bipolar 1 Disorder
Responded
133 participants
n=5 Participants
124 participants
n=7 Participants
136 participants
n=5 Participants
393 participants
n=4 Participants
Psychiatric History for response to Valproic Acid Treatment of Bipolar 1 Disorder
Not Applicable
35 participants
n=5 Participants
29 participants
n=7 Participants
27 participants
n=5 Participants
91 participants
n=4 Participants
Psychiatric History for response to Valproic Acid Treatment of Bipolar 1 Disorder
Unknown
10 participants
n=5 Participants
8 participants
n=7 Participants
10 participants
n=5 Participants
28 participants
n=4 Participants
Female Reproductive Status
Postmenopausal
44 participants
n=5 Participants
30 participants
n=7 Participants
34 participants
n=5 Participants
108 participants
n=4 Participants
Female Reproductive Status
Surgically Sterile
20 participants
n=5 Participants
14 participants
n=7 Participants
12 participants
n=5 Participants
46 participants
n=4 Participants
Female Reproductive Status
Child-Bearing Potential
55 participants
n=5 Participants
54 participants
n=7 Participants
62 participants
n=5 Participants
171 participants
n=4 Participants
Female Reproductive Status
Not applicable (male participants)
65 participants
n=5 Participants
71 participants
n=7 Participants
74 participants
n=5 Participants
210 participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline and Week 6

Population: Full Analysis Set (FAS) included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy.

The MADRS is a clinician rated, validated and widely used scale to measure overall severity of depressive symptoms. It consists of 10-item rated from 0(normal) to 6(most abnormal) with a total score range from 0 to 60. Higher scores indicate greater severity of symptoms.

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Change From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS) Total Score at Week 6
Baseline (n= 179, 167, 176)
30.8 units on scale
Standard Error 0.28
30.2 units on scale
Standard Error 0.29
30.4 units on scale
Standard Error 0.29
Change From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS) Total Score at Week 6
Change at Week 6 (n= 149, 139, 143)
-14.7 units on scale
Standard Error 0.69
-14.0 units on scale
Standard Error 0.71
-15.1 units on scale
Standard Error 0.70

SECONDARY outcome

Timeframe: Baseline and Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy.

The YMRS is a 11-item scale to assess manic symptoms. Four items are rated on a scale from 0 (symptom not present) to 8 (symptom extremely severe), and 7 items are rated on a scale from 0 to 4 with higher scores reflecting greater levels of mania. The YMRS total score is calculated as the sum of the 11 individual item scores and ranges from 0-60.

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Change From Baseline in Young Mania Rating Scale (YMRS) Total Score at Week 6
Baseline (n= 179, 167, 176)
4.4 units on a scale
Standard Error 0.16
4.3 units on a scale
Standard Error 0.16
4.4 units on a scale
Standard Error 0.16
Change From Baseline in Young Mania Rating Scale (YMRS) Total Score at Week 6
Change at Week 6 (n= 149, 139, 143)
-1.4 units on a scale
Standard Error 0.19
-0.9 units on a scale
Standard Error 0.20
-1.5 units on a scale
Standard Error 0.20

SECONDARY outcome

Timeframe: Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy.

The CGI-I assesses the clinician's impression of the participant's state of mental illness improvement and consists of 1 question for the investigator: "Compared to his condition at the start of the study, how much has this patient changed?" which is rated on a 7-point scale (1=very much improved; 2=much improved; 3=minimally improved; 4=no change relative to baseline; 5=minimally worse; 6= much worse; 7=very much worse). In all cases, the assessment was independent of whether the rater believed the improvement was drug-related or not.

Outcome measures

Outcome measures
Measure
Placebo
n=149 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=139 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=143 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Clinical Global Impression Scale-Improvement (CGI-I) Score
2.5 units on a scale
Standard Error 0.08
2.5 units on a scale
Standard Error 0.09
2.3 units on a scale
Standard Error 0.09

SECONDARY outcome

Timeframe: Baseline and Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy.

The CGI-S assesses the clinician's impression of the participant's current state of mental illness and consists of 1 question for the investigator: "Considering your total clinical experience with this particular population, how mentally ill is the patient at this time?" which is rated on a 7-point scale (1=normal, not ill at all; 2=borderline mentally ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill).

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Change From Baseline in Clinical Global Impression Scale-Severity (CGI-S) to Week 6
Baseline (n= 179, 167, 176)
4.5 units on a scale
Standard Error 0.04
4.5 units on a scale
Standard Error 0.04
4.5 units on a scale
Standard Error 0.04
Change From Baseline in Clinical Global Impression Scale-Severity (CGI-S) to Week 6
Change at Week 6 (n= 149, 139, 143)
-1.4 units on a scale
Standard Error 0.08
-1.3 units on a scale
Standard Error 0.09
-1.4 units on a scale
Standard Error 0.08

SECONDARY outcome

Timeframe: Baseline and Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy.

The 16-item QIDS-SR16 version is a widely used validated scale designed to assess the severity of depressive symptoms. The participant was asked to rate the severity and frequency of specific symptoms present over the last 7 days. The QIDS-SR16 total scores range from 0 to 27, where higher scores indicate higher severity of symptoms.

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Change From Baseline in the Quick Inventory of Depressive Symptomatology - Self-Rated16 (QIDS-SR16) Total Score at Week 6
Baseline (n= 178, 167, 176)
14.8 units on a scale
Standard Error 0.26
14.5 units on a scale
Standard Error 0.27
14.2 units on a scale
Standard Error 0.26
Change From Baseline in the Quick Inventory of Depressive Symptomatology - Self-Rated16 (QIDS-SR16) Total Score at Week 6
Change at Week 6 (n= 148, 139, 143)
-7.2 units on a scale
Standard Error 0.36
-6.4 units on a scale
Standard Error 0.38
-7.3 units on a scale
Standard Error 0.37

SECONDARY outcome

Timeframe: Baseline and Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy.

The SDS is a 3-item rating scale to assess functional impairment (panic, anxiety, phobic and depressive symptoms) over 3 inter-related domains (work/school, social life, and family life/home responsibilities) rated on an 11-point scale from 0 (not at all) to 10 (extremely) with a total score range from 0 to 30 where higher scores indicates greater severity of impairment.

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 6
Change at Week 6 (n= 148, 139, 143)
-6.8 units on a scale
Standard Error 0.51
-6.2 units on a scale
Standard Error 0.52
-6.4 units on a scale
Standard Error 0.51
Change From Baseline in Sheehan Disability Scale (SDS) Total Score at Week 6
Baseline (n= 174, 163, 172)
18.1 units on a scale
Standard Error 0.43
17.1 units on a scale
Standard Error 0.44
15.9 units on a scale
Standard Error 0.43

SECONDARY outcome

Timeframe: Baseline and Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy.

Q-LES-Q-SF is a self-administered, widely used 16-item questionnaire to assess the degree of enjoyment and satisfaction experienced by participants in various areas of daily functioning, such as social relationships, living/housing, physical health, medication, and global satisfaction. The questionnaire consists of 16 items rated by the participants on a 5-point scale. Of these, 14 items are summed to produce a total quality of life score with a maximum of 70 points. In addition, there are 2 global items that are scored individually. These items rate satisfaction with study medication and overall life satisfaction. The questionnaire is usually scored as a percent of the total possible score, with higher scores indicating better health status.

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Change From Baseline in Quality of Life, Enjoyment, and Satisfaction Questionnaire Short Form (Q-LES-Q-SF) Total Score at Week 6
Baseline (n= 174, 163, 172)
38.3 percentage of total possible score
Standard Error 0.93
38.8 percentage of total possible score
Standard Error 0.95
41.0 percentage of total possible score
Standard Error 0.93
Change From Baseline in Quality of Life, Enjoyment, and Satisfaction Questionnaire Short Form (Q-LES-Q-SF) Total Score at Week 6
Change at Week 6 (n= 148, 139, 143)
15.6 percentage of total possible score
Standard Error 1.19
14.7 percentage of total possible score
Standard Error 1.22
15.7 percentage of total possible score
Standard Error 1.21

SECONDARY outcome

Timeframe: Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy. Last observation carried forward (LOCF) method was used to impute missing data.

MADRS response is defined as greater than or equal to (\>=) 50 percent (%) decrease in the MADRS total score from baseline. The MADRS is a clinician rated, validated and widely used scale to measure overall severity of depressive symptoms. It consists of 10-item rated from 0 (normal) to 6 (most abnormal) with a total score range from 0 to 60, where higher scores indicate greater severity of symptoms.

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Percentage of Participants With MADRS Response
43.6 percentage of participants
43.1 percentage of participants
40.3 percentage of participants

SECONDARY outcome

Timeframe: Week 6

Population: FAS included all randomized participants who received at least 1 dose of double-blind study medication and who had a baseline value and at least 1 valid post-baseline value for assessment of primary efficacy. LOCF method was used to impute missing data.

MADRS remission is defined as a MADRS total score less than or equal to (\<=) 10. The MADRS is a clinician rated, validated and widely used scale to measure overall severity of depressive symptoms. It consists of 10-item rated from 0 (normal) to 6 (most abnormal) with a total score range from 0 to 60, where higher scores indicate greater severity of symptoms.

Outcome measures

Outcome measures
Measure
Placebo
n=179 Participants
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=167 Participants
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=176 Participants
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Percentage of Participants With MADRS Remission
26.8 percentage of participants
26.9 percentage of participants
24.4 percentage of participants

Adverse Events

Placebo

Serious events: 1 serious events
Other events: 18 other events
Deaths: 0 deaths

TAK-375SL 0.1 mg

Serious events: 0 serious events
Other events: 14 other events
Deaths: 0 deaths

TAK-375SL 0.4 mg

Serious events: 5 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=184 participants at risk
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=169 participants at risk
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=182 participants at risk
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Infections and infestations
Cellulitis
0.00%
0/184 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.00%
0/169 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.55%
1/182 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
Infections and infestations
Pyelonephritis
0.00%
0/184 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.00%
0/169 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.55%
1/182 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
Psychiatric disorders
Depression
0.00%
0/184 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.00%
0/169 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.55%
1/182 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
Psychiatric disorders
Hypomania
0.00%
0/184 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.00%
0/169 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.55%
1/182 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
Psychiatric disorders
Mania
0.00%
0/184 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.00%
0/169 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.55%
1/182 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
Psychiatric disorders
Psychiatric symptom
0.54%
1/184 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.00%
0/169 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
0.00%
0/182 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.

Other adverse events

Other adverse events
Measure
Placebo
n=184 participants at risk
TAK-375SL (ramelteon) placebo-matching tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.1 mg
n=169 participants at risk
TAK-375SL (ramelteon) 0.1 mg, tablet, sublingually, once daily for up to 6 weeks.
TAK-375SL 0.4 mg
n=182 participants at risk
TAK-375SL (ramelteon) 0.4 mg, tablet, sublingually, once daily for up to 6 weeks.
Nervous system disorders
Headache
9.8%
18/184 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
8.3%
14/169 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.
5.5%
10/182 • Treatment-emergent adverse events are adverse events that started after the first dose of double-blind study drug and no more than 30 days for a serious adverse event after the last dose of double-blind study drug.
At each visit the investigator had to document any occurrence of adverse events and abnormal laboratory findings. Any event spontaneously reported by the participant or observed by the investigator was recorded, irrespective of the relation to study treatment.

Additional Information

Medical Director

Takeda

Phone: +1-877-825-3327

Results disclosure agreements

  • Principal investigator is a sponsor employee The first study related publication will be a multi-center publication submitted within 24 months after conclusion or termination of a study at all sites. After such multi site publication, all proposed site publications and presentations will be submitted to sponsor for review 60 days in advance of publication. Site will remove Sponsor confidential information unrelated to study results. Sponsor can delay a proposed publication for another 60 days to preserve intellectual property.
  • Publication restrictions are in place

Restriction type: OTHER