Trial Outcomes & Findings for EPI-743 for Metabolism or Mitochondrial Disorders (NCT NCT01642056)

NCT ID: NCT01642056

Last Updated: 2021-04-14

Results Overview

NPMDS is a semi-quantitative clinical rating scale that evaluates the progression of mitochondrial disease in pediatric patients. The NPMDS scale provides an assessment of the progression of mitochondrial disease. Scores from Parts I-III are added to get a value between 0 and 130, with higher scores representing more severe disease.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

20 participants

Primary outcome timeframe

Baseline - Day 0

Results posted on

2021-04-14

Participant Flow

20 subjects were consented. One subject died during first intervention due to progression of disease. Three subjects did not complete the second intervention.

Participant milestones

Participant milestones
Measure
EPI-743, Then Placebo
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals, then placebo three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo, Then EPI-743
Received Placebo three times daily orally or via gastric tube with meals, then EPI-743, 15mg/kg up to a maximum dose of 200 mg three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
First Intervention
STARTED
10
10
First Intervention
COMPLETED
9
10
First Intervention
NOT COMPLETED
1
0
Second Intervention
STARTED
9
10
Second Intervention
COMPLETED
8
8
Second Intervention
NOT COMPLETED
1
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

EPI-743 for Metabolism or Mitochondrial Disorders

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
EPI-743, Then Placebo
n=10 Participants
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals, then placebo three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo, Then EPI-743
n=10 Participants
Received Placebo three times daily orally or via gastric tube with meals, then EPI-743, 15mg/kg up to a maximum dose of 200 mg three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Total
n=20 Participants
Total of all reporting groups
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Age, Categorical
<=18 years
10 Participants
n=5 Participants
10 Participants
n=7 Participants
20 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
5 Participants
n=7 Participants
8 Participants
n=5 Participants
Sex: Female, Male
Male
7 Participants
n=5 Participants
5 Participants
n=7 Participants
12 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
9 Participants
n=5 Participants
9 Participants
n=7 Participants
18 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
3 Participants
n=5 Participants
1 Participants
n=7 Participants
4 Participants
n=5 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
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
White
4 Participants
n=5 Participants
9 Participants
n=7 Participants
13 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline - Day 0

Population: Participants who who had treatment intervention in phase I. The outcome measures were analyzed separately by arm and phase, not by combining results by intervention across phases, due to the progressive nature of the underlying disease.

NPMDS is a semi-quantitative clinical rating scale that evaluates the progression of mitochondrial disease in pediatric patients. The NPMDS scale provides an assessment of the progression of mitochondrial disease. Scores from Parts I-III are added to get a value between 0 and 130, with higher scores representing more severe disease.

Outcome measures

Outcome measures
Measure
EPI-743, Then Placebo
n=10 Participants
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals, then placebo three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo, Then EPI-743
n=10 Participants
Received Placebo three times daily orally or via gastric tube with meals, then EPI-743, 15mg/kg up to a maximum dose of 200 mg three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Newcastle Paediatric Mitochondrial Disease Scale (NPMDS) Part I-III, Baseline
23.9 Units on a scale
Standard Error 2.8
20.4 Units on a scale
Standard Error 3.7

PRIMARY outcome

Timeframe: 6 months

Population: (Participants who who had treatment intervention in phase I. The outcome measures were analyzed separately by arm and phase, not by combining results by intervention across phases, due to the progressive nature of the underlying disease.

NPMDS is a semi-quantitative clinical rating scale that evaluates the progression of mitochondrial disease in pediatric patients. The NPMDS scale provides an assessment of the progression of mitochondrial disease. Scores from Parts I-III are added to get a value between 0 and 130, with higher scores representing more severe disease.

Outcome measures

Outcome measures
Measure
EPI-743, Then Placebo
n=9 Participants
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals, then placebo three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo, Then EPI-743
n=10 Participants
Received Placebo three times daily orally or via gastric tube with meals, then EPI-743, 15mg/kg up to a maximum dose of 200 mg three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Newcastle Paediatric Mitochondrial Disease Scale (NPMDS) Part I-III, 6 Months
27.1 Units on a scale
Standard Error 2.7
20.2 Units on a scale
Standard Error 3.8

PRIMARY outcome

Timeframe: 8 month - Post washout

Population: Participants who received treatment in phase II. The outcome measures were analyzed separately by arm and phase, not by combining results by intervention across phases, due to the progressive nature of the underlying disease.

NPMDS is a semi-quantitative clinical rating scale that evaluates the progression of mitochondrial disease in pediatric patients. The NPMDS scale provides an assessment of the progression of mitochondrial disease. Scores from Parts I-III are added to get a value between 0 and 130, with higher scores representing more severe disease.

Outcome measures

Outcome measures
Measure
EPI-743, Then Placebo
n=9 Participants
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals, then placebo three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo, Then EPI-743
n=10 Participants
Received Placebo three times daily orally or via gastric tube with meals, then EPI-743, 15mg/kg up to a maximum dose of 200 mg three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Newcastle Paediatric Mitochondrial Disease Scale (NPMDS) Part I-III, Post Washout
27.1 Units on a scale
Standard Error 3.5
18.3 Units on a scale
Standard Error 3.6

PRIMARY outcome

Timeframe: 14 months

Population: Participants who received treatment in phase II. The outcome measures were analyzed separately by arm and phase, not by combining results by intervention across phases, due to the progressive nature of the underlying disease.

NPMDS is a semi-quantitative clinical rating scale that evaluates the progression of mitochondrial disease in pediatric patients. The NPMDS scale provides an assessment of the progression of mitochondrial disease. Scores from Parts I-III are added to get a value between 0 and 130, with higher scores representing more severe disease.

Outcome measures

Outcome measures
Measure
EPI-743, Then Placebo
n=8 Participants
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals, then placebo three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo, Then EPI-743
n=8 Participants
Received Placebo three times daily orally or via gastric tube with meals, then EPI-743, 15mg/kg up to a maximum dose of 200 mg three times daily orally or via gastric tube with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Newcastle Paediatric Mitochondrial Disease Scale (NPMDS) Part I-III, 14 Months
26 Units on a scale
Standard Error 3.3
15.8 Units on a scale
Standard Error 3.7

Adverse Events

EPI-743

Serious events: 3 serious events
Other events: 17 other events
Deaths: 1 deaths

Placebo

Serious events: 4 serious events
Other events: 18 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
EPI-743
n=20 participants at risk
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo
n=19 participants at risk
Received Placebo three times daily orally or via gastric tube with meals.
General disorders
Hyperthermia
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Investigations
Blood creatine phosphokinase increased
5.0%
1/20 • Number of events 3 • 14 Months
0.00%
0/19 • 14 Months
Nervous system disorders
Status epilepticus
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Respiratory, thoracic and mediastinal disorders
Respiratory tract infection
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Surgical and medical procedures
Hospitalisation
10.0%
2/20 • Number of events 3 • 14 Months
21.1%
4/19 • Number of events 6 • 14 Months

Other adverse events

Other adverse events
Measure
EPI-743
n=20 participants at risk
Received EPI-743, 15mg/kg up to a maximum dose of 200 mg orally or via gastric tube three times daily with meals. EPI-743 is structurally related to Vitamin E and can be broadly classified as an antioxidant.
Placebo
n=19 participants at risk
Received Placebo three times daily orally or via gastric tube with meals.
Blood and lymphatic system disorders
Anaemia
0.00%
0/20 • 14 Months
10.5%
2/19 • Number of events 3 • 14 Months
Blood and lymphatic system disorders
Polycythaemia
10.0%
2/20 • Number of events 3 • 14 Months
26.3%
5/19 • Number of events 5 • 14 Months
Ear and labyrinth disorders
Tinnitus
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Endocrine disorders
Adrenal insufficiency
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Endocrine disorders
Goitre
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Endocrine disorders
Hypercalcaemia
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Endocrine disorders
Hyperthyroidism
5.0%
1/20 • Number of events 1 • 14 Months
10.5%
2/19 • Number of events 2 • 14 Months
Endocrine disorders
Hypothyroidism
15.0%
3/20 • Number of events 4 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Gastrointestinal disorders
Diarrhoea
0.00%
0/20 • 14 Months
10.5%
2/19 • Number of events 2 • 14 Months
Gastrointestinal disorders
Gastroenteritis viral
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Gastrointestinal disorders
Nausea
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Gastrointestinal disorders
Pharyngitis
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Gastrointestinal disorders
Vomiting
20.0%
4/20 • Number of events 4 • 14 Months
21.1%
4/19 • Number of events 5 • 14 Months
General disorders
Fatigue
0.00%
0/20 • 14 Months
10.5%
2/19 • Number of events 2 • 14 Months
General disorders
Hyperthermia
0.00%
0/20 • 14 Months
31.6%
6/19 • Number of events 6 • 14 Months
General disorders
Influenza like illness
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Hepatobiliary disorders
Hyperammonaemia
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Investigations
Activated partial thromboplastin time prolonged
15.0%
3/20 • Number of events 4 • 14 Months
26.3%
5/19 • Number of events 6 • 14 Months
Investigations
Alanine aminotransferase increased
20.0%
4/20 • Number of events 7 • 14 Months
21.1%
4/19 • Number of events 5 • 14 Months
Investigations
Amylase increased
5.0%
1/20 • Number of events 1 • 14 Months
15.8%
3/19 • Number of events 3 • 14 Months
Investigations
Aspartate aminotransferase increased
20.0%
4/20 • Number of events 5 • 14 Months
21.1%
4/19 • Number of events 6 • 14 Months
Investigations
Blood albumin decreased
0.00%
0/20 • 14 Months
10.5%
2/19 • Number of events 3 • 14 Months
Investigations
Blood alkaline phosphatase increased
10.0%
2/20 • Number of events 3 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Investigations
Blood creatine phosphokinase increased
50.0%
10/20 • Number of events 14 • 14 Months
31.6%
6/19 • Number of events 10 • 14 Months
Investigations
Electrocardiogram QT prolonged
5.0%
1/20 • Number of events 1 • 14 Months
5.3%
1/19 • Number of events 2 • 14 Months
Investigations
International normalised ratio increased
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Investigations
Lipase increased
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Investigations
Lymphocyte count increased
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Investigations
Neutrophil count decreased
5.0%
1/20 • Number of events 1 • 14 Months
10.5%
2/19 • Number of events 2 • 14 Months
Investigations
Platelet count decreased
5.0%
1/20 • Number of events 1 • 14 Months
10.5%
2/19 • Number of events 2 • 14 Months
Investigations
Prothrombin time prolonged
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Investigations
Red blood cell sedimentation rate increased
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Investigations
White blood cell count decreased
5.0%
1/20 • Number of events 1 • 14 Months
10.5%
2/19 • Number of events 2 • 14 Months
Metabolism and nutrition disorders
Dehydration
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Metabolism and nutrition disorders
Hyperbilirubinaemia
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Metabolism and nutrition disorders
Hypercholesterolaemia
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Metabolism and nutrition disorders
Hyperkalaemia
5.0%
1/20 • Number of events 2 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Metabolism and nutrition disorders
Hypernatraemia
10.0%
2/20 • Number of events 2 • 14 Months
0.00%
0/19 • 14 Months
Metabolism and nutrition disorders
Hypocalcaemia
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Metabolism and nutrition disorders
Hypoglycaemia
10.0%
2/20 • Number of events 2 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Metabolism and nutrition disorders
Hyponatraemia
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Psychiatric disorders
Psychomotor hyperactivity
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Psychiatric disorders
Violence-related symptom
0.00%
0/20 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Renal and urinary disorders
Proteinuria
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Respiratory, thoracic and mediastinal disorders
Cough
10.0%
2/20 • Number of events 2 • 14 Months
10.5%
2/19 • Number of events 2 • 14 Months
Respiratory, thoracic and mediastinal disorders
Nasal congestion
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Respiratory, thoracic and mediastinal disorders
Upper respiratory tract irritation
10.0%
2/20 • Number of events 2 • 14 Months
5.3%
1/19 • Number of events 1 • 14 Months
Respiratory, thoracic and mediastinal disorders
Wheezing
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months
Skin and subcutaneous tissue disorders
Rash
5.0%
1/20 • Number of events 1 • 14 Months
0.00%
0/19 • 14 Months

Additional Information

Gahl, William

National Human Genome Research Institute

Phone: +1 301 402 2739

Results disclosure agreements

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