- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01839656
A Study to Assess the Efficacy, Safety and Pharmacokinetics of Nusinersen (ISIS 396443) in Infants With Spinal Muscular Atrophy (SMA)
February 12, 2021 updated by: Biogen
A Study to Assess the Efficacy, Safety, Tolerability, and Pharmacokinetics of Multiple Doses of ISIS 396443 Delivered Intrathecally to Patients With Infantile-Onset Spinal Muscular Atrophy
The primary objective is to examine the clinical efficacy of multiple doses of nusinersen (ISIS 396443) administered intrathecally to participants with Infantile-Onset Spinal Muscular Atrophy (SMA).
The secondary objectives are to examine the safety and tolerability of multiple doses of nusinersen administered intrathecally to participants with infantile-onset SMA and to examine the cerebral spinal fluid (CSF) and plasma Pharmacokinetics (PK) of multiple doses of nusinersen administered intrathecally to participants with infantile-onset SMA.
Study Overview
Detailed Description
This study was conducted and the protocol was registered by Ionis Pharmaceuticals, Inc..
In August 2016, sponsorship of the trial was transferred to Biogen.
Study Type
Interventional
Enrollment (Actual)
21
Phase
- Phase 2
Expanded Access
No longer available outside the clinical trial.
See expanded access record.
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Ontario
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Toronto, Ontario, Canada, M5G 1X8
- The Hospital for Sick Children (SickKids)
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California
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Stanford, California, United States, 94305
- Stanford University Medical Center
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Florida
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Orlando, Florida, United States, 32827
- Nemours Children's Hospital
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New York
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New York, New York, United States, 10032
- Columbia University Medical Center
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
3 weeks to 6 months (CHILD)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Key Inclusion Criteria:
- Genetic documentation of 5q SMA (homozygous gene deletion or mutation)
- Onset of clinical signs and symptoms consistent with SMA at ≥ 21 days and <6 months (180 days) of age
- At study entry, receiving adequate nutrition and hydration (with or without gastrostomy), in the opinion of the Site Investigator
- Body weight >5th percentile for age using Center of Disease Control and Prevention (CDC) guidelines
- Medical care meets and is expected to continue to meet guidelines set out in the Consensus Statement for Standard of Care in SMA (Wang et al. 2007), in the opinion of the Site Investigator
- Gestational age of 35 to 42 weeks and gestation body weight ≥2 kg
- Reside within approximately 9 hours ground-travel distance from a participating study center for the duration of the study. Residence >2 hours ground-travel distance from a study center must obtain clearance from the Site Investigator and the study Medical Monitor
- Able to complete all study procedures, measurements and visits and parent or guardian/participant has adequately supportive psychosocial circumstances, in the opinion of the Site Investigator
Exclusion Criteria:
- Hypoxemia (O2 saturation awake <96% or O2 saturation asleep <96%, without ventilation support)
- Presence of an untreated or inadequately treated active infection requiring systemic antiviral or antimicrobial therapy at any time during the screening period
- History of brain or spinal cord disease that would interfere with the lumbar puncture (LP) procedures, CSF circulation, or safety assessments
- Presence of an implanted shunt for the drainage of cerebrospinal fluid (CSF) or an implanted central nervous system (CNS) catheter
- History of bacterial meningitis
- Clinically significant abnormalities in hematology or clinical chemistry parameters, as assessed by the Site Investigator, at screening that would render the participant unsuitable for inclusion
- Treatment with another investigational drug (e.g., albuterol, riluzole, carnitine, creatine, sodium phenylbutyrate, salbutamol, valproate, hydroxyurea etc), biological agent, or device within 90 days prior to enrollment or anytime during the study. Any history of gene therapy or cell transplantation
- The participants parent(s) or legal guardian(s) is unable to understand the nature, scope, and possible consequences of the study, or does not agree to comply with the protocol defined schedule of assessments
- Ongoing medical condition that according to the Site Investigator would interfere with the conduct and assessments of the study. Examples are medical disability other than SMA that would interfere with the assessment of safety or would compromise the ability of the participant to undergo study procedures
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NON_RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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EXPERIMENTAL: Nusinersen 6 mg
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Administered by intrathecal (IT) injection
Other Names:
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EXPERIMENTAL: Nusinersen 12 mg
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Administered by intrathecal (IT) injection
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percent of Participants Who Achieved Improvement in Motor Milestones as Assessed by Section 2 of the HINE at the Last Visit
Time Frame: Day 1352 or Early Termination
|
Section 2 of HINE consists of 8 independent milestone categories.
Within each of these categories, participants can progress from complete absence of a motor ability (the lowest level in each category) through multiple milestones (2 to 4 levels in each category) to the highest level within the category.
Overall, there are a total of 26 milestones that can be achieved across the 8 categories.
Improvement was defined as any of the following: 1.
An increase from baseline of 2 milestones or more, or the achievement of pincer grasp in the voluntary grasp category 2.
An increase from baseline of 2 milestones or more, or achievement of touching toes in the ability to kick category 3.
An increase from baseline of 1 milestone or more in any of the remaining 6 categories: head control, rolling, sitting, crawling, standing, or walking.
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Day 1352 or Early Termination
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Event-free Survival at the End of Study
Time Frame: Up to Day 1638
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Event-free survival was defined as the percent of participants who were alive and did not require permanent ventilatory support (defined as tracheostomy or the need for ≥16 hours ventilation/day continuously for at least 2 weeks in the absence of an acute reversible illness) Event-free survival was estimated using Kaplan-Meier methodology.
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Up to Day 1638
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Percent of Participants With Improved Motor Function at the Last Visit as Assessed by the CHOP-INTEND Motor Function Scale
Time Frame: Day 1352 or Early Termination
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The CHOP-INTEND test includes 16 items structured to move from easiest to hardest with the grading including gravity eliminated (lower scores) to antigravity movements (higher scores).
All item scores range from 0 (worst) to 4 (best).
Total scores range from 0 to 64, with higher scores indicating better movement functioning.
Improvement was defined as an increase in total CHOP INTEND score ≥4 points from baseline as of the last study visit.
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Day 1352 or Early Termination
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Change in Neuromuscular Electrophysiology at the Last Visit as Assessed by the Change From Baseline in CMAP Amplitude
Time Frame: Baseline, Day 1072
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CMAP is an electrophysiological technique that can be used to determine the approximate number of motor neurons in a muscle or group of muscles.
A positive change from Baseline indicates that the number of motor neurons increased.
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Baseline, Day 1072
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Number of Participants Experiencing Adverse Events (AEs) and/or Serious Adverse Events (SAEs)
Time Frame: Up to Day 1352
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AE: any unfavorable and unintended sign, symptom, or disease temporally associated with the study or use of investigational drug product, whether or not the AE is considered related to the investigational drug product.
SAE: any AE that in the view of either the Investigator or Sponsor, meets any of the following criteria: results in death; is life threatening: that is, poses an immediate risk of death at the time of the event; requires in-patient hospitalization or prolongation of existing hospitalization; results in a persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions; results in congenital anomaly or birth defect in the offspring of the subject (whether male or female); is an important medical event in the opinion of the Investigator or Sponsor.
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Up to Day 1352
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Concentration of Nusinersen in Cerebrospinal Fluid (CSF)
Time Frame: Day 1135 (Predose)
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The concentration of nusinersen in CSF was measured by using standard laboratory assays.
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Day 1135 (Predose)
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PK Parameters of Nusinersen in Plasma: Maximum Concentration (Cmax)
Time Frame: Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )
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Cmax is the maximum observed concentration of study drug in plasma.
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Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )
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PK Parameters of Nusinersen in Plasma: Time to Reach Cmax (Tmax)
Time Frame: Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )
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Tmax is the time at which Cmax occurs.
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Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )
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PK Parameters of Nusinersen in Plasma: Area Under the Plasma Concentrations Time Curve From the Time of the IT Dose to Four Hours After Dosing (AUC0-4)
Time Frame: Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )
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AUC is area under the plasma concentration-time curve from zero time (Predose) to 4 hours after IT administration of study drug.
AUC was determined by using the linear trapezoidal rule.
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Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Darras BT, Farrar MA, Mercuri E, Finkel RS, Foster R, Hughes SG, Bhan I, Farwell W, Gheuens S. An Integrated Safety Analysis of Infants and Children with Symptomatic Spinal Muscular Atrophy (SMA) Treated with Nusinersen in Seven Clinical Trials. CNS Drugs. 2019 Sep;33(9):919-932. doi: 10.1007/s40263-019-00656-w.
- Finkel RS, Chiriboga CA, Vajsar J, Day JW, Montes J, De Vivo DC, Bishop KM, Foster R, Liu Y, Ramirez-Schrempp D, Schneider E, Bennett CF, Wong J, Farwell W. Treatment of infantile-onset spinal muscular atrophy with nusinersen: final report of a phase 2, open-label, multicentre, dose-escalation study. Lancet Child Adolesc Health. 2021 Jul;5(7):491-500. doi: 10.1016/S2352-4642(21)00100-0. Epub 2021 Jun 3.
- Finkel RS, Chiriboga CA, Vajsar J, Day JW, Montes J, De Vivo DC, Yamashita M, Rigo F, Hung G, Schneider E, Norris DA, Xia S, Bennett CF, Bishop KM. Treatment of infantile-onset spinal muscular atrophy with nusinersen: a phase 2, open-label, dose-escalation study. Lancet. 2016 Dec 17;388(10063):3017-3026. doi: 10.1016/S0140-6736(16)31408-8. Epub 2016 Dec 7.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
May 8, 2013
Primary Completion (ACTUAL)
August 21, 2017
Study Completion (ACTUAL)
August 21, 2017
Study Registration Dates
First Submitted
April 22, 2013
First Submitted That Met QC Criteria
April 22, 2013
First Posted (ESTIMATE)
April 25, 2013
Study Record Updates
Last Update Posted (ACTUAL)
February 17, 2021
Last Update Submitted That Met QC Criteria
February 12, 2021
Last Verified
February 1, 2021
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- ISIS 396443-CS3A
- 2017-000621-12 (EUDRACT_NUMBER)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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