Trial Outcomes & Findings for Effects of Eslicarbazepine Acetate (Esl, Bia 2-093) on Cognitive Function in Children With Partial Onset Seizures (NCT NCT01527513)

NCT ID: NCT01527513

Last Updated: 2014-10-24

Results Overview

Power of Attention was defined as the sum of the reaction time measures from the attentional tasks (simple \[dominant hand only\] reaction time, choice reaction time and digit vigilance speed) in order to assess information processing speed and attention/psychomotor speed.Change from baseline to the end of the double-blind period in Power of Attention will be compared between the treatment groups using an ANCOVA. Non-inferiority of ESL vs Placebo will be assessed by comparing the 95% CI's upper bound of the difference of Least Squares Mean (LSmeans) between treatment groups (ESL-placebo) with 121 ms. If the upper bound is greater than 121 ms then the null hypothesis that the change from baseline in the Power of Attention score in ESL group is at least 121 ms inferior than the placebo group will be rejected. Single Values were calculated the average of post treatment visits (visits 5 and 7or EDV) minus average of baseline visits (visits 1 and 2)

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

123 participants

Primary outcome timeframe

Visit 1 (-4 weeks for training), Visit 2 (Day 1), Visit 5 (6 weeks), Visit 7 (12 weeks) or at early discontinuation visit (EDV)

Results posted on

2014-10-24

Participant Flow

Participant milestones

Participant milestones
Measure
Placebo
Placebo Once-Daily (QD)
Esl (BIA 2-093)
Eslicarbazepine acetate (BIA 2-093): ESL 10-30 mg/kg/day QD (maximum 1200 mg/day).
Double Blind Period (DB) - Part I
STARTED
40
83
Double Blind Period (DB) - Part I
Randomized
40
83
Double Blind Period (DB) - Part I
Safety Population
40
83
Double Blind Period (DB) - Part I
Entered Maintenance Period
40
76
Double Blind Period (DB) - Part I
Completed the Double Blind (DB)- Part I
37
75
Double Blind Period (DB) - Part I
Eligible for Open Label Period (OL)
37
75
Double Blind Period (DB) - Part I
Efficacy PP Population
37
67
Double Blind Period (DB) - Part I
Per-protocol (PP) Population
36
66
Double Blind Period (DB) - Part I
COMPLETED
37
75
Double Blind Period (DB) - Part I
NOT COMPLETED
3
8
Eligible for 1-Year Open Label Period
STARTED
0
112
Eligible for 1-Year Open Label Period
COMPLETED
0
95
Eligible for 1-Year Open Label Period
NOT COMPLETED
0
17

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Effects of Eslicarbazepine Acetate (Esl, Bia 2-093) on Cognitive Function in Children With Partial Onset Seizures

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Esl (BIA 2-093)
n=83 Participants
Eslicarbazepine acetate (BIA 2-093): ESL 30 mg/kg/day QD (maximum 1200 mg/day).
Placebo
n=40 Participants
Placebo QD
Total
n=123 Participants
Total of all reporting groups
Age, Customized
6-11 Years
36 participants
n=5 Participants
18 participants
n=7 Participants
54 participants
n=5 Participants
Age, Customized
12-16 Years
47 participants
n=5 Participants
22 participants
n=7 Participants
69 participants
n=5 Participants
Sex: Female, Male
Female
36 Participants
n=5 Participants
14 Participants
n=7 Participants
50 Participants
n=5 Participants
Sex: Female, Male
Male
47 Participants
n=5 Participants
26 Participants
n=7 Participants
73 Participants
n=5 Participants
Race/Ethnicity, Customized
Caucasian
83 participants
n=5 Participants
39 participants
n=7 Participants
122 participants
n=5 Participants
Race/Ethnicity, Customized
South American
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
Race/Ethnicity, Customized
African (Black)
0 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
Race/Ethnicity, Customized
Asian
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
Race/Ethnicity, Customized
Other
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants

PRIMARY outcome

Timeframe: Visit 1 (-4 weeks for training), Visit 2 (Day 1), Visit 5 (6 weeks), Visit 7 (12 weeks) or at early discontinuation visit (EDV)

Population: The primary analysis was based on the Cognitive Per-protocol (PP) population - all patients in the Modified Cognitive Intent-to-Treat (ITT) population who completed the 8-week maintenance period and were not Important Protocol Deviations (IPDs) with respect to the primary cognitive endpoint.

Power of Attention was defined as the sum of the reaction time measures from the attentional tasks (simple \[dominant hand only\] reaction time, choice reaction time and digit vigilance speed) in order to assess information processing speed and attention/psychomotor speed.Change from baseline to the end of the double-blind period in Power of Attention will be compared between the treatment groups using an ANCOVA. Non-inferiority of ESL vs Placebo will be assessed by comparing the 95% CI's upper bound of the difference of Least Squares Mean (LSmeans) between treatment groups (ESL-placebo) with 121 ms. If the upper bound is greater than 121 ms then the null hypothesis that the change from baseline in the Power of Attention score in ESL group is at least 121 ms inferior than the placebo group will be rejected. Single Values were calculated the average of post treatment visits (visits 5 and 7or EDV) minus average of baseline visits (visits 1 and 2)

Outcome measures

Outcome measures
Measure
Placebo
n=34 Participants
Placebo QD
Esl (BIA 2-093)
n=60 Participants
Eslicarbazepine acetate (BIA 2-093): ESL 30 mg/kg/day QD (maximum 1200 mg/day).
Change From Baseline in Power of Attention Score to the End of the Double Blind (DB) Period
111.085 Milli seconds (ms)
Standard Error 76.4254
59.122 Milli seconds (ms)
Standard Error 52.0904

SECONDARY outcome

Timeframe: Baseline; Titration Period (4 Weeks: V2-V3-V4)

Population: Modified Efficacy ITT population - all randomized patients who received at least one dose of study treatment after randomization and had at least one post-baseline seizure frequency assessment.

Outcome measures

Outcome measures
Measure
Placebo
n=40 Participants
Placebo QD
Esl (BIA 2-093)
n=83 Participants
Eslicarbazepine acetate (BIA 2-093): ESL 30 mg/kg/day QD (maximum 1200 mg/day).
Change From Baseline in Standardized Seizure Frequency - Part I
-9.13 Seizures per week
Standard Deviation 75.602
-31.03 Seizures per week
Standard Deviation 87.963

SECONDARY outcome

Timeframe: Weeks 1 to ≥ 41 weeks

Population: Modified Efficacy Intent-to-Treat (ITT) population- all randomized patients who received at least one dose of study treatment after randomization and had at least one post-baseline seizure frequency assessment.

Overall Change from Baseline in Seizure Frequency per week for the One-Year Open-Label Period

Outcome measures

Outcome measures
Measure
Placebo
n=112 Participants
Placebo QD
Esl (BIA 2-093)
Eslicarbazepine acetate (BIA 2-093): ESL 30 mg/kg/day QD (maximum 1200 mg/day).
Change From Baseline in Seizure Frequency During the One-year Open-Label (OL)
-3.03 Seizure per week
Standard Error 31.370

Adverse Events

Placebo

Serious events: 2 serious events
Other events: 21 other events
Deaths: 0 deaths

Part I - ESL

Serious events: 3 serious events
Other events: 35 other events
Deaths: 0 deaths

Part II - ESL

Serious events: 8 serious events
Other events: 45 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo
n=40 participants at risk
Placebo QD
Part I - ESL
n=83 participants at risk
Eslicarbazepine acetate (ESL) - 30 mg/kg/day QD maximum 1200 mg/day.
Part II - ESL
n=112 participants at risk
Eslicarbazepine acetate (ESL) - 30 mg/kg/day QD maximum 1200 mg/day.
Infections and infestations
ACUTE BRONCHITIS
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Nervous system disorders
INCREASED SEIZURE FREQUENCY OF COMPLEX MOTOR PARTIAL SEIZURES
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Injury, poisoning and procedural complications
FRACTURE OF NOSE
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Metabolism and nutrition disorders
TYPE 1 DIABETES MELLITUS
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Cardiac disorders
MITRALIC INSUFFICIENCY
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Nervous system disorders
COMPLEX PARTIAL STATUS
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Infections and infestations
Hepatitis infectious mononucleosis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Respiratory tract infection viral
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Injury, poisoning and procedural complications
Radius fracture
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Injury, poisoning and procedural complications
Thermal burn
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Nervous system disorders
Convulsion
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
2.7%
3/112 • throughout the study
Skin and subcutaneous tissue disorders
Urticaria
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study

Other adverse events

Other adverse events
Measure
Placebo
n=40 participants at risk
Placebo QD
Part I - ESL
n=83 participants at risk
Eslicarbazepine acetate (ESL) - 30 mg/kg/day QD maximum 1200 mg/day.
Part II - ESL
n=112 participants at risk
Eslicarbazepine acetate (ESL) - 30 mg/kg/day QD maximum 1200 mg/day.
Skin and subcutaneous tissue disorders
Rash pruritic
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Vascular disorders
Pallor
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Blood and lymphatic system disorders
Anaemia
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Blood and lymphatic system disorders
Monocytosis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Blood and lymphatic system disorders
Thrombocytopenia
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Ear and labyrinth disorders
Vertigo
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Endocrine disorders
Autoimmune thyroiditis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Acute tonsillitis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
1.8%
2/112 • throughout the study
Infections and infestations
Chronic tonsillitis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Gastroenteritis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Hepatitis infectious mononucleosis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Nasopharyngitis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
2.7%
3/112 • throughout the study
Infections and infestations
Pharyngotonsillitis
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Respiratory tract infection
5.0%
2/40 • throughout the study
4.8%
4/83 • throughout the study
2.7%
3/112 • throughout the study
Infections and infestations
Rubella
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Scarlet fever
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Upper respiratory tract infection
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Injury, poisoning and procedural complications
Arthropod sting
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Injury, poisoning and procedural complications
Head injury
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
1.8%
2/112 • throughout the study
Injury, poisoning and procedural complications
Radius fracture
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Injury, poisoning and procedural complications
Skin laceration
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Investigations
Aspartate aminotransferase increased
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Investigations
Blood creatine phosphokinase increased
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Metabolism and nutrition disorders
Decreased appetite
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Nervous system disorders
Convulsion
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
3.6%
4/112 • throughout the study
Renal and urinary disorders
Haematuria
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Reproductive system and breast disorders
Hypomenorrhoea
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
1.8%
2/112 • throughout the study
Skin and subcutaneous tissue disorders
Urticaria
0.00%
0/40 • throughout the study
0.00%
0/83 • throughout the study
1.8%
2/112 • throughout the study
Nervous system disorders
Headache
15.0%
6/40 • throughout the study
9.6%
8/83 • throughout the study
5.4%
6/112 • throughout the study
Nervous system disorders
Somnolence
5.0%
2/40 • throughout the study
6.0%
5/83 • throughout the study
0.00%
0/112 • throughout the study
Gastrointestinal disorders
Vomiting
2.5%
1/40 • throughout the study
6.0%
5/83 • throughout the study
3.6%
4/112 • throughout the study
Skin and subcutaneous tissue disorders
Dermatitis Allergic
0.00%
0/40 • throughout the study
4.8%
4/83 • throughout the study
0.89%
1/112 • throughout the study
Eye disorders
Diplopia
0.00%
0/40 • throughout the study
3.6%
3/83 • throughout the study
1.8%
2/112 • throughout the study
Nervous system disorders
Dizziness
2.5%
1/40 • throughout the study
3.6%
3/83 • throughout the study
1.8%
2/112 • throughout the study
Infections and infestations
Respiratory Tract Infection Viral
0.00%
0/40 • throughout the study
3.6%
3/83 • throughout the study
5.4%
6/112 • throughout the study
Gastrointestinal disorders
Nausea
5.0%
2/40 • throughout the study
2.4%
2/83 • throughout the study
1.8%
2/112 • throughout the study
General disorders
Pyrexia
5.0%
2/40 • throughout the study
1.2%
1/83 • throughout the study
3.6%
4/112 • throughout the study
Respiratory, thoracic and mediastinal disorders
Cough
5.0%
2/40 • throughout the study
0.00%
0/83 • throughout the study
1.8%
2/112 • throughout the study
Cardiac disorders
Mitral valve incompetence
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Cardiac disorders
Ventricular extrasystoles
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.89%
1/112 • throughout the study
Ear and labyrinth disorders
Deafness
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Endocrine disorders
Hypothalamo-pituitary disorder
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Endocrine disorders
Hypothyroidism
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Eye disorders
Astigmatism
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Eye disorders
Conjunctivitis
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Gastrointestinal disorders
Abdominal pain
2.5%
1/40 • throughout the study
2.4%
2/83 • throughout the study
0.89%
1/112 • throughout the study
Gastrointestinal disorders
Dyspepsia
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Gastrointestinal disorders
Gastritis
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
General disorders
Chest pain
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
General disorders
Feeling abnormal
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
General disorders
Irritability
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Bronchitis
2.5%
1/40 • throughout the study
2.4%
2/83 • throughout the study
2.7%
3/112 • throughout the study
Infections and infestations
Ear infection
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
1.8%
2/112 • throughout the study
Infections and infestations
Gastrointestinal viral infection
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Hepatitis viral
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Infections and infestations
Herpes simplex
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Infections and infestations
Influenza
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
2.7%
3/112 • throughout the study
Infections and infestations
Pharyngitis
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Pneumonia
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Infections and infestations
Rhinitis
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Infections and infestations
Varicella
2.5%
1/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Injury, poisoning and procedural complications
Excoriation
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Injury, poisoning and procedural complications
Face injury
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Injury, poisoning and procedural complications
Thermal burn
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Investigations
Electrocardiogram t wave abnormal
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Investigations
Weight decreased
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Metabolism and nutrition disorders
Obesity
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Metabolism and nutrition disorders
Type 1 diabetes mellitus
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Nervous system disorders
Ataxia
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Nervous system disorders
Complex partial seizures
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Nervous system disorders
Hemianopia
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Nervous system disorders
Mental retardation
2.5%
1/40 • throughout the study
2.4%
2/83 • throughout the study
0.00%
0/112 • throughout the study
Nervous system disorders
Status epilepticus
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Psychiatric disorders
Anxiety
2.5%
1/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Psychiatric disorders
Apathy
2.5%
1/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Psychiatric disorders
Insomnia
2.5%
1/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Psychiatric disorders
Nervousness
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Respiratory, thoracic and mediastinal disorders
Asthma
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.00%
0/112 • throughout the study
Skin and subcutaneous tissue disorders
Alopecia
0.00%
0/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study
Skin and subcutaneous tissue disorders
Ecchymosis
2.5%
1/40 • throughout the study
0.00%
0/83 • throughout the study
0.89%
1/112 • throughout the study
Skin and subcutaneous tissue disorders
Rash
2.5%
1/40 • throughout the study
1.2%
1/83 • throughout the study
0.00%
0/112 • throughout the study

Additional Information

Director R&D

BIAL - Portela & Cª SA

Phone: +351-229866100

Results disclosure agreements

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

Restriction type: OTHER