Trial Outcomes & Findings for A Open Label Study in Previously Studied, SBC-103 Treatment Naïve MPS IIIB Subjects to Investigate the Safety, Pharmacokinetics, and Pharmacodynamics/Efficacy of SBC-103 Administered Intravenously (NCT NCT02618512)

NCT ID: NCT02618512

Last Updated: 2018-04-17

Results Overview

The planned primary endpoint of this study was safety and tolerability of SBC-103 in patients with MPS IIIB, as measured by Number of participants with treatment-emergent adverse events, including serious adverse events; infusion-associated reactions; incidence of antidrug antibodies, clinical laboratory tests, cerebrospinal fluid findings, vital signs, and prior and concomitant medications

Recruitment status

TERMINATED

Study phase

PHASE1/PHASE2

Target enrollment

3 participants

Primary outcome timeframe

Planned duration was baseline to 164 weeks but due to early termination of the study, actual is 96 weeks.

Results posted on

2018-04-17

Participant Flow

Participant milestones

Participant milestones
Measure
SBC-103
Patients were administered 1 mg/kg by IV infusion once every other week (qow) for at least 12 weeks. After evaluation of 12-week safety, tolerability, and pharmacodynamic data in individual patients, the dose was increased to 3 mg/kg qow. Infusions were to be at least 10 days apart and were administered every 14 days ±5 days.
Overall Study
STARTED
3
Overall Study
COMPLETED
3
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

A Open Label Study in Previously Studied, SBC-103 Treatment Naïve MPS IIIB Subjects to Investigate the Safety, Pharmacokinetics, and Pharmacodynamics/Efficacy of SBC-103 Administered Intravenously

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SBC-103
n=3 Participants
Patients were administered 1 mg/kg by IV infusion once every other week (qow) for at least 12 weeks. After evaluation of 12-week safety, tolerability, and pharmacodynamic data in individual patients, the dose was increased to 3 mg/kg qow. Infusions were to be at least 10 days apart and were administered every 14 days ±5 days.
Age, Categorical
<=18 years
3 Participants
n=39 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=39 Participants
Age, Categorical
>=65 years
0 Participants
n=39 Participants
Sex: Female, Male
Female
1 Participants
n=39 Participants
Sex: Female, Male
Male
2 Participants
n=39 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=39 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants
n=39 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=39 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=39 Participants
Race (NIH/OMB)
Asian
0 Participants
n=39 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=39 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=39 Participants
Race (NIH/OMB)
White
3 Participants
n=39 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=39 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=39 Participants
Region of Enrollment
United Kingdom
3 Participants
n=39 Participants

PRIMARY outcome

Timeframe: Planned duration was baseline to 164 weeks but due to early termination of the study, actual is 96 weeks.

The planned primary endpoint of this study was safety and tolerability of SBC-103 in patients with MPS IIIB, as measured by Number of participants with treatment-emergent adverse events, including serious adverse events; infusion-associated reactions; incidence of antidrug antibodies, clinical laboratory tests, cerebrospinal fluid findings, vital signs, and prior and concomitant medications

Outcome measures

Outcome measures
Measure
SBC-103
n=3 Participants
Patients were administered 1 mg/kg by IV infusion once every other week (qow) for at least 12 weeks. After evaluation of 12-week safety, tolerability, and pharmacodynamic data in individual patients, the dose was increased to 3 mg/kg qow. Infusions were to be at least 10 days apart and were administered every 14 days ±5 days.
Safety and Tolerability of SBC-103
3 Participants

Adverse Events

SBC-103

Serious events: 2 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
SBC-103
n=3 participants at risk
Patients were administered 1 mg/kg by IV infusion once every other week (qow) for at least 12 weeks. After evaluation of 12-week safety, tolerability, and pharmacodynamic data in individual patients, the dose was increased to 3 mg/kg qow. Infusions were to be at least 10 days apart and were administered every 14 days ±5 days.
Infections and infestations
Device Related Infection
66.7%
2/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Injury, poisoning and procedural complications
Wound dehiscence
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Skin and subcutaneous tissue disorders
Erythema Multiforme
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Surgical and medical procedures
Catheter placement
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.

Other adverse events

Other adverse events
Measure
SBC-103
n=3 participants at risk
Patients were administered 1 mg/kg by IV infusion once every other week (qow) for at least 12 weeks. After evaluation of 12-week safety, tolerability, and pharmacodynamic data in individual patients, the dose was increased to 3 mg/kg qow. Infusions were to be at least 10 days apart and were administered every 14 days ±5 days.
Injury, poisoning and procedural complications
Fall
100.0%
3/3 • Number of events 8 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Injury, poisoning and procedural complications
Procedural pain
100.0%
3/3 • Number of events 4 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Injury, poisoning and procedural complications
Contusion
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Injury, poisoning and procedural complications
Post-traumatic pain
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Injury, poisoning and procedural complications
Scratch
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Pyrexia
66.7%
2/3 • Number of events 5 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Gait disturbance
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Pain
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Complication associated with device
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Excessive granulation tissue
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Fatigue
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Peripheral swelling
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Vomiting
100.0%
3/3 • Number of events 6 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Diarrhoea
66.7%
2/3 • Number of events 8 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Toothache
66.7%
2/3 • Number of events 4 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Constipation
66.7%
2/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Salivary hypersecretion
66.7%
2/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Abdominal pain upper
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Abdominal discomfort
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Dysphagia
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Gastrointestinal disorders
Vomiting projectile
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Infections and infestations
Nasopharyngitis
100.0%
3/3 • Number of events 11 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Infections and infestations
Staphylococcal infection
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Infections and infestations
Candida infection
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Infections and infestations
Ear infection
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Infections and infestations
Urinary tract infection
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Infections and infestations
Viral upper respiratory tract infection
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
General disorders
Catheter site pain
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Psychiatric disorders
Restlessness
66.7%
2/3 • Number of events 4 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Psychiatric disorders
Anxiety
66.7%
2/3 • Number of events 3 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Psychiatric disorders
Sleep disorder
66.7%
2/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Psychiatric disorders
Abnormal behaviour
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Psychiatric disorders
Breath holding
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Psychiatric disorders
Emotional distress
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Nervous system disorders
Headache
66.7%
2/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Nervous system disorders
Psychomotor hyperactivity
66.7%
2/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Nervous system disorders
Dyskinesia
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Nervous system disorders
Seizure
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Nervous system disorders
Motor dysfunction
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Nervous system disorders
Petit mal epilepsy
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Skin and subcutaneous tissue disorders
Skin warm
66.7%
2/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Skin and subcutaneous tissue disorders
Application site erythema
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Skin and subcutaneous tissue disorders
Excessive granulation tissue
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Skin and subcutaneous tissue disorders
Hair disorder
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Skin and subcutaneous tissue disorders
Skin irritation
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Skin and subcutaneous tissue disorders
Urticaria
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Respiratory, thoracic and mediastinal disorders
Epistaxis
33.3%
1/3 • Number of events 2 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Respiratory, thoracic and mediastinal disorders
Choking
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Respiratory, thoracic and mediastinal disorders
Cough
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Musculoskeletal and connective tissue disorders
Back pain
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Musculoskeletal and connective tissue disorders
Musculoskeletal stiffness
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Musculoskeletal and connective tissue disorders
Pain in extremity
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Reproductive system and breast disorders
Dysmenorrhoea
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Reproductive system and breast disorders
Premenstrual pain
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Cardiac disorders
Bradycardia
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Endocrine disorders
Precocious puberty
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Immune system disorders
Seasonal allergy
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.
Investigations
Body temperature increased
33.3%
1/3 • Number of events 1 • Baseline to 96 Weeks.
Treatment-emergent AEs by System Organ Class (SOC) and Preferred Term are classified according to the Medical Dictionary for Regulatory Activities (MedDRA) v19.0.

Additional Information

Alexion Medical Monitor

Alexion

Phone: 617-613-1071

Results disclosure agreements

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

Restriction type: OTHER