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Trial · NCT01839656

A Study to Assess the Efficacy, Safety and Pharmacokinetics of Nusinersen (ISIS 396443) in Infants With Spinal Muscular Atrophy (SMA)

NCT01839656, Phase 2, Completed, Biogen; results first posted 2018-10-30

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Study to Assess the Efficacy, Safety and Pharmacokinetics of Nusinersen (ISIS 396443) in Infants With Spinal Muscular Atrophy (SMA). Trials, record NCT01839656. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01839656

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Study to Assess the Efficacy, Safety and Pharmacokinetics of Nusinersen (ISIS 396443) in Infants With Spinal Muscular Atrophy (SMA)
NCT number
NCT01839656
Status
Completed
Phases
Phase 2
Enrollment
21 participants, actual
Lead sponsor
Biogen
Conditions
Spinal Muscular Atrophy
Interventions
nusinersen
First posted
2013-04-25
Last updated
2021-02-17
Other registries' IDs
eudract:2017-000621-12
Results first posted
2018-10-30

Source ClinicalTrials.gov

Registered outcomes9

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercent of Participants Who Achieved Improvement in Motor Milestones as Assessed by Section 2 of the HINE at the Last VisitDay 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.
SecondaryEvent-free Survival at the End of StudyUp to Day 1638
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.
SecondaryPercent of Participants With Improved Motor Function at the Last Visit as Assessed by the CHOP-INTEND Motor Function ScaleDay 1352 or Early Termination
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.
SecondaryChange in Neuromuscular Electrophysiology at the Last Visit as Assessed by the Change From Baseline in CMAP AmplitudeBaseline, Day 1072
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.
SecondaryNumber of Participants Experiencing Adverse Events (AEs) and/or Serious Adverse Events (SAEs)Up to Day 1352
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.
SecondaryConcentration of Nusinersen in Cerebrospinal Fluid (CSF)Day 1135 (Predose)The concentration of nusinersen in CSF was measured by using standard laboratory assays.
SecondaryPK Parameters of Nusinersen in Plasma: Maximum Concentration (Cmax)Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )Cmax is the maximum observed concentration of study drug in plasma.
SecondaryPK Parameters of Nusinersen in Plasma: Time to Reach Cmax (Tmax)Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )Tmax is the time at which Cmax occurs.
SecondaryPK 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)Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )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.

Outcomes9

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercent of Participants Who Achieved Improvement in Motor Milestones as Assessed by Section 2 of the HINE at the Last VisitDay 1352 or Early TerminationSafety Population: All participants who were registered and received at least 1 dose of nusinersen.Percent of participantsNUMBER
SECONDARYEvent-free Survival at the End of StudyUp to Day 1638Safety Population: All participants who were registered and received at least 1 dose of nusinersen.Percent of participantsNUMBER
SECONDARYPercent of Participants With Improved Motor Function at the Last Visit as Assessed by the CHOP-INTEND Motor Function ScaleDay 1352 or Early TerminationSafety Population: All participants who were registered and received at least 1 dose of nusinersen.Percent of participantsNUMBER
SECONDARYChange in Neuromuscular Electrophysiology at the Last Visit as Assessed by the Change From Baseline in CMAP AmplitudeBaseline, Day 1072
Safety Population: All participants who were registered and received at least 1 dose of nusinersen. Here, number of participants analyzed is the participants who were evaluable for this outcome measure.
mVMEAN
SECONDARYNumber of Participants Experiencing Adverse Events (AEs) and/or Serious Adverse Events (SAEs)Up to Day 1352Safety Population: All participants who were registered and received at least 1 dose of nusinersen.participantsNUMBER
SECONDARYConcentration of Nusinersen in Cerebrospinal Fluid (CSF)Day 1135 (Predose)
PK Population: All participants who were registered and had at least 1 evaluable postdose PK sample. Here, number of participants analyzed is the participants who were evaluable for this outcome measure.
nanograms/milliliter (ng/mL)MEAN
SECONDARYPK Parameters of Nusinersen in Plasma: Maximum Concentration (Cmax)Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )PK Population: All participants who were registered and had at least 1 evaluable postdose PK sample.ng/mLMEAN
SECONDARYPK Parameters of Nusinersen in Plasma: Time to Reach Cmax (Tmax)Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )PK Population: All participants who were registered and had at least 1 evaluable postdose PK sample.hrMEAN
SECONDARYPK 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)Day 1 (Predose and 1, 2, and 4 hours [hr] Postdose) and Day 2 (24 hr Postdose )PK Population: All participants who were registered and had at least 1 evaluable postdose PK sample.ng x hr/mLMEAN

Results by group22

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percent of Participants Who Achieved Improvement in Motor Milestones as Assessed by Section 2 of the HINE at the Last VisitNusinersen 6 mg25.0Percent of participants
Percent of Participants Who Achieved Improvement in Motor Milestones as Assessed by Section 2 of the HINE at the Last VisitNusinersen 12 mg68.8Percent of participants
Event-free Survival at the End of StudyNusinersen 6 mg25.0Percent of participants
Event-free Survival at the End of StudyNusinersen 12 mg62.5Percent of participants
Percent of Participants With Improved Motor Function at the Last Visit as Assessed by the CHOP-INTEND Motor Function ScaleNusinersen 6 mg25.0Percent of participants
Percent of Participants With Improved Motor Function at the Last Visit as Assessed by the CHOP-INTEND Motor Function ScaleNusinersen 12 mg62.5Percent of participants
Change in Neuromuscular Electrophysiology at the Last Visit as Assessed by the Change From Baseline in CMAP AmplitudeNusinersen 6 mgPeroneal nerve1.88Standard Deviation 2.58mV
Change in Neuromuscular Electrophysiology at the Last Visit as Assessed by the Change From Baseline in CMAP AmplitudeNusinersen 12 mgPeroneal nerve2.81Standard Deviation 1.28mV
Change in Neuromuscular Electrophysiology at the Last Visit as Assessed by the Change From Baseline in CMAP AmplitudeNusinersen 6 mgUlnar nerve0.776Standard Deviation 1.448mV
Change in Neuromuscular Electrophysiology at the Last Visit as Assessed by the Change From Baseline in CMAP AmplitudeNusinersen 12 mgUlnar nerve0.685Standard Deviation 0.415mV

Participant flow8

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDNusinersen 6 mg5
Overall StudySTARTEDNusinersen 12 mg16
Overall StudyCompleted Loading Dose PeriodNusinersen 6 mg4
Overall StudyCompleted Loading Dose PeriodNusinersen 12 mg15
Overall StudyCOMPLETEDNusinersen 6 mg2
Overall StudyCOMPLETEDNusinersen 12 mg0
Overall StudyNOT COMPLETEDNusinersen 6 mg3
Overall StudyNOT COMPLETEDNusinersen 12 mg16

Adverse events560

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersNusinersen 6 mg04
otherAnaemiaBlood and lymphatic system disordersNusinersen 12 mg216
otherEosinophiliaBlood and lymphatic system disordersNusinersen 6 mg04
otherEosinophiliaBlood and lymphatic system disordersNusinersen 12 mg116
otherLymphadenopathyBlood and lymphatic system disordersNusinersen 6 mg14
otherLymphadenopathyBlood and lymphatic system disordersNusinersen 12 mg116
otherNeutropeniaBlood and lymphatic system disordersNusinersen 6 mg04
otherNeutropeniaBlood and lymphatic system disordersNusinersen 12 mg116
otherThrombocytosisBlood and lymphatic system disordersNusinersen 6 mg04
otherThrombocytosisBlood and lymphatic system disordersNusinersen 12 mg116

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityNusinersen 6 mg14
Total, all-cause mortalityNusinersen 12 mg416
Total, other adverse eventsNusinersen 6 mg44
Total, other adverse eventsNusinersen 12 mg1616
Total, serious adverse eventsNusinersen 6 mg34
Total, serious adverse eventsNusinersen 12 mg1316

Papers3

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
27939059DERIVEDPubMed
31420846DERIVEDPubMed
34089650DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Nusinersen 6 mg vs Nusinersen 12 mg: deaths from any causeTrial comparisons
Nusinersen 6 mg vs Nusinersen 12 mg: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT01839656

GET https://conductscience.org/api/trials/v1/NCT01839656/results?page=2