.

Why SPINRAZA/Early-Onset Efficacy

SPINRAZA has proven efficacy in presymptomatic, early-, and later-onset SMA1-4

Pivotal trial: ENDEAR2,5

Study: A phase 3, multicenter, double-blind, randomized (2:1), sham-controlled trial

Treatment duration: 13 months

Participants: 121 patients with early-onset SMA aged ≤7 months at time of first dose

Primary endpoints: Survival without the need for permanent ventilation and proportion of patients meeting the criteria for motor milestone responder using HINE-2

Safety: The most common side effects were lower respiratory infection (55%) and constipation (35%). Serious adverse reactions of atelectasis were more frequent in SPINRAZA-treated patients (18%) than in control patients (10%)

SEE ADDITIONAL SPINRAZA SAFETY

Better event-free survival compared to untreated patients2

*Permanent assisted ventilation was defined as tracheostomy or ventilatory support for ≥16 hours per day for >21 continuous days in the absence of an acute reversible event.

 

Learn more about the mobility measures used in the SPINRAZA clinical trials.

MEASURES OF MOBILITY TOOL

Those with Type 1 SMA saw improvements in motor milestones that are rarely, if ever, achieved in untreated children2

51% treated vs 0% untreated achieved the motor milestone responder criteria as defined by HINE-2 at 13 months.† Motor milestones included2:

†P<0.0001
Responders=patients achieving an improvement in more categories of motor milestones than worsening according to HINE-2.5
HINE-2=Hammersmith Infant Neurological Examination Section 2, motor milestone portion.

Patients treated with SPINRAZA continued to improve over time (day 394), while untreated patients saw a decline in motor milestones2

SEM=standard error of the mean.

Ian Quote

“Whether she can or
can’t do something, she
is going to try.”

—Mother of Sofia

Review the warnings and precautions including thrombocytopenia, coagulation abnormalities,
and renal toxicity

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Start your patient on SPINRAZA

IMPORTANT SAFETY INFORMATION

Coagulation abnormalities and thrombocytopenia, including acute severe thrombocytopenia, have been observed after administration of some antisense oligonucleotides. Patients may be at increased risk of bleeding complications.

In the sham-controlled studies for patients with infantile-onset and later-onset SMA, 24 of 146 SPINRAZA-treated patients (16%) with high, normal, or unknown platelet count at baseline developed a platelet level below the lower limit of normal, compared to 10 of 72 sham-controlled patients (14%). Two SPINRAZA-treated patients developed platelet counts <50,000 cells per microliter, with the lowest level of 10,000 cells per microliter recorded on study day 28.

Renal toxicity, including potentially fatal glomerulonephritis, has been observed after administration of some antisense oligonucleotides. SPINRAZA is present in and excreted by the kidney. In the sham-controlled studies for patients with infantile-onset and later-onset SMA, 71 of 123 SPINRAZA-treated patients (58%) had elevated urine protein, compared to 22 of 65 sham-controlled patients (34%).

Laboratory testing and monitoring to assess safety should be conducted. Perform a platelet count, coagulation laboratory testing, and quantitative spot urine protein testing at baseline and prior to each dose of SPINRAZA and as clinically needed.

Severe hyponatremia was reported in an infant treated with SPINRAZA requiring salt supplementation for 14 months.

Cases of rash were reported in patients treated with SPINRAZA.

SPINRAZA may cause a reduction in growth as measured by height when administered to infants, as suggested by observations from the controlled study. It is unknown whether any effect of SPINRAZA on growth would be reversible with cessation of treatment.

The most common adverse reactions (≥20% of SPINRAZA-treated patients and ≥5% more frequently than in control patients) that occurred in the infantile-onset controlled study were lower respiratory infection and constipation. Serious adverse reactions of atelectasis were more frequent in SPINRAZA-treated patients (18%) than in control patients (10%). Because patients in this controlled study were infants, adverse reactions that are verbally reported could not be assessed. The most common adverse reactions that occurred in the later-onset controlled study were pyrexia, headache, vomiting, and back pain. Post-lumbar puncture syndrome has also been observed after the administration of SPINRAZA.

INDICATION

SPINRAZA is indicated for the treatment of spinal muscular atrophy (SMA) in pediatric and adult patients.

Please see full Prescribing Information.

As a courtesy, our full Prescribing Information is also available en Español. For prescribing decisions, please refer to official approved labeling.

References

1. De Vivo DC, Bertini E, Swoboda KJ, et al. Nusinersen initiated in infants during the presymptomatic stage of spinal muscular atrophy: interim efficacy and safety results from the Phase 2 NURTURE study. Neuromuscul Disord. 2019;29(11):842-856. 2. Finkel RS, Mercuri E, Darras BT, et al. Nusinersen versus sham control in infantile-onset spinal muscular atrophy. N Engl J Med. 2017;377(18):1723-1732. 3. Mercuri E, Darras BT, Chiriboga CA, et al. Nusinersen versus sham control in later-onset spinal muscular atrophy. N Engl J Med. 2018;378(7):625-635. 4. Darras BT, Chiriboga CA, Iannaccone ST, et al. Nusinersen in later-onset spinal muscular atrophy: long-term results from the phase 1/2 studies. Neurology. 2019;92(21):e2492-e2506. 5. SPINRAZA. Prescribing Information. Cambridge, MA: Biogen; 2020.

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