Trial Outcomes & Findings for Efficacy and Safety of Eslicarbazepine Acetate (BIA 2-093) in Acute Manic Episodes Associated With Bipolar I Disorder (NCT NCT01822678)

NCT ID: NCT01822678

Last Updated: 2014-03-27

Results Overview

The YMRS is used to assess disease severity in patients who have been previously diagnosed with mania and it has proven psychometric properties through 11 item multiple-choice diagnostic questionnaire and the total score is determined from the summation of each 11 individual scores (and can range from 0 - 60) based on the patient's subjective feedback of his clinical condition over the previous 48 hours. A higher score indicates a worse rating for symptoms related to mania. At every visit throughout the study, investigators administered the YMRS. The results of the primary analysis of efficacy were calculated using Analysis of covariance (ANCOVA) with Last Observation Carried Forward (LOCF). Primary variable is presented through ANCOVA results for absolute change in YMRS total score from baseline (V2) to end of treatment (V7). A responder has at least 50% improvement (reduction) in the YMRS total score or has a total score of less than 12 points at the end of treatment period.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

161 participants

Primary outcome timeframe

baseline and 3-week

Results posted on

2014-03-27

Participant Flow

Study centres: 23 centres: 2 centres in Austria, 6 centres in Czech Republic, 6 centres in Slovakia, 1 centre in Portugal, and 8 centres in Romania. First patient enrolled: 02 December 2005 Last patient completed: 23 November 2006

Patients who met the selection criteria at the randomisation visit (visit 2, Day 1) were randomised to 1 of the 3 treatment groups

Participant milestones

Participant milestones
Measure
ESL 800 mg
Group 1: Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response.
ESL 600 mg
Group 2: Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response.
Placebo
Group 3: Placebo (change in daily number of tablets administered, according to clinical response). Placebo : Placebo, sugar pill
Overall Study
STARTED
57
64
40
Overall Study
Treated
57
64
40
Overall Study
Safety Population
57
64
40
Overall Study
Intention-to-Treat Population (ITT)
57
63
40
Overall Study
Per Protocol Population
45
52
34
Overall Study
COMPLETED
45
49
29
Overall Study
NOT COMPLETED
12
15
11

Reasons for withdrawal

Reasons for withdrawal
Measure
ESL 800 mg
Group 1: Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response.
ESL 600 mg
Group 2: Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response.
Placebo
Group 3: Placebo (change in daily number of tablets administered, according to clinical response). Placebo : Placebo, sugar pill
Overall Study
Withdrawal by Subject
5
4
4
Overall Study
Adverse Event
4
3
1
Overall Study
Lack of Efficacy
3
6
5
Overall Study
Lost to Follow-up
0
2
1

Baseline Characteristics

Efficacy and Safety of Eslicarbazepine Acetate (BIA 2-093) in Acute Manic Episodes Associated With Bipolar I Disorder

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
BIA 2-093 - 2400 mg (Maximum Dose)
n=57 Participants
Group 1: Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response.
BIA 2-093 - 1800 mg (Maximum Dose)
n=64 Participants
Group 2: Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response.
Placebo
n=40 Participants
Group 3: Placebo (change in daily number of tablets administered, according to clinical response). Placebo : Placebo, sugar pill
Total
n=161 Participants
Total of all reporting groups
Age, Customized
18 - 20 Years
2 participants
19.3 • n=5 Participants
0 participants
14.3 • n=7 Participants
0 participants
22.5 • n=5 Participants
2 participants
12.98 • n=4 Participants
Age, Customized
20 - 30 Years
9 participants
70.2 • n=5 Participants
10 participants
76.2 • n=7 Participants
9 participants
67.85 • n=5 Participants
28 participants
12.79 • n=4 Participants
Age, Customized
30 - 40 Years
15 participants
10.5 • n=5 Participants
17 participants
9.5 • n=7 Participants
8 participants
10.0 • n=5 Participants
40 participants
13.19 • n=4 Participants
Age, Customized
40 - 50 Years
15 participants
n=5 Participants
16 participants
n=7 Participants
11 participants
n=5 Participants
42 participants
n=4 Participants
Age, Customized
50 - 60 Years
10 participants
n=5 Participants
15 participants
n=7 Participants
8 participants
n=5 Participants
33 participants
n=4 Participants
Age, Customized
60 - 70 Years
6 participants
n=5 Participants
5 participants
n=7 Participants
3 participants
n=5 Participants
14 participants
n=4 Participants
Age, Customized
70 - 80 Years
0 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
2 participants
n=4 Participants
Sex: Female, Male
Female
27 Participants
n=5 Participants
36 Participants
n=7 Participants
18 Participants
n=5 Participants
81 Participants
n=4 Participants
Sex: Female, Male
Male
30 Participants
n=5 Participants
28 Participants
n=7 Participants
22 Participants
n=5 Participants
80 Participants
n=4 Participants

PRIMARY outcome

Timeframe: baseline and 3-week

Population: The ITT efficacy population consisted of all randomised patients who received at least one dose of investigational product and at least 1 post-baseline YMRS assessment. If a patient discontinues before the end of the 3-week treatment period then the last observation will be carried forward (LOCF).

The YMRS is used to assess disease severity in patients who have been previously diagnosed with mania and it has proven psychometric properties through 11 item multiple-choice diagnostic questionnaire and the total score is determined from the summation of each 11 individual scores (and can range from 0 - 60) based on the patient's subjective feedback of his clinical condition over the previous 48 hours. A higher score indicates a worse rating for symptoms related to mania. At every visit throughout the study, investigators administered the YMRS. The results of the primary analysis of efficacy were calculated using Analysis of covariance (ANCOVA) with Last Observation Carried Forward (LOCF). Primary variable is presented through ANCOVA results for absolute change in YMRS total score from baseline (V2) to end of treatment (V7). A responder has at least 50% improvement (reduction) in the YMRS total score or has a total score of less than 12 points at the end of treatment period.

Outcome measures

Outcome measures
Measure
BIA 2-093 - 2400 mg (Maximum Dose)
n=57 Participants
Group 1: Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response.
BIA 2-093 - 1800 mg (Maximum Dose)
n=63 Participants
Group 2: Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response.
Placebo
n=40 Participants
Group 3: Placebo (change in daily number of tablets administered, according to clinical response). Placebo : Placebo, sugar pill
Change in the Young Mania Rating Scale (YMRS) Total Score at the End of the 3-week Treatment Period, in Relation to the Baseline.
-14.2 units on a scale
Standard Error 1.17
-12.5 units on a scale
Standard Error 1.12
-10.3 units on a scale
Standard Error 1.40

Adverse Events

BIA 2-093 - 2400 mg (Maximum Dose)

Serious events: 2 serious events
Other events: 20 other events
Deaths: 0 deaths

BIA 2-093 - 1800 mg (Maximum Dose)

Serious events: 2 serious events
Other events: 25 other events
Deaths: 0 deaths

Placebo

Serious events: 1 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
BIA 2-093 - 2400 mg (Maximum Dose)
n=57 participants at risk
Group 1: Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response.
BIA 2-093 - 1800 mg (Maximum Dose)
n=64 participants at risk
Group 2: Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response.
Placebo
n=40 participants at risk
Group 3: Placebo (change in daily number of tablets administered, according to clinical response). Placebo : Placebo, sugar pill
Psychiatric disorders
Mania
3.5%
2/57 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
1.6%
1/64 • Number of events 1 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
0.00%
0/40 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
Blood and lymphatic system disorders
Leukopenia
0.00%
0/57 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
1.6%
1/64 • Number of events 1 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
0.00%
0/40 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
Metabolism and nutrition disorders
Hyponatraemia
0.00%
0/57 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
1.6%
1/64 • Number of events 1 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
0.00%
0/40 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
Nervous system disorders
Ischaemic stroke
0.00%
0/57 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
0.00%
0/64 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
2.5%
1/40 • Number of events 1 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)

Other adverse events

Other adverse events
Measure
BIA 2-093 - 2400 mg (Maximum Dose)
n=57 participants at risk
Group 1: Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 800 mg per day and up-titrated in 800 mg steps until 2400 mg (maximum dose) according to clinical response.
BIA 2-093 - 1800 mg (Maximum Dose)
n=64 participants at risk
Group 2: Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response. Eslicarbazepine Acetate : Eslicarbazepine Acetate, starting with 600 mg per day and up-titrated in 600 mg steps until 1800 mg (maximum dose) according to clinical response.
Placebo
n=40 participants at risk
Group 3: Placebo (change in daily number of tablets administered, according to clinical response). Placebo : Placebo, sugar pill
Nervous system disorders
Headache
8.8%
5/57 • Number of events 5 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
10.9%
7/64 • Number of events 7 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
0.00%
0/40 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
Nervous system disorders
Dizziness
8.8%
5/57 • Number of events 5 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
9.4%
6/64 • Number of events 6 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
10.0%
4/40 • Number of events 4 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
General disorders
Nausea
7.0%
4/57 • Number of events 4 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
3.1%
2/64 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
5.0%
2/40 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
Gastrointestinal disorders
Vomiting
3.5%
2/57 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
6.2%
4/64 • Number of events 4 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
5.0%
2/40 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
Gastrointestinal disorders
Diarrhoea
3.5%
2/57 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
6.2%
4/64 • Number of events 4 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
0.00%
0/40 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
Psychiatric disorders
Agitation
3.5%
2/57 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
3.1%
2/64 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)
5.0%
2/40 • Number of events 2 • Up to 4 weeks
Participants were followed for the duration of drug administration, an average of 4 weeks (titration and maintenance) plus up to 6 days (tapering-off, i.e. downtitration conducted on an individual basis corresponding to up-titration)

Additional Information

Head of Clinical Research Section

BIAL - Portela & Ca, SA

Phone: 351 22 986 6100

Results disclosure agreements

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

Restriction type: OTHER