Refrigerated Storage

Spinraza · Biogen

Solution for injection, 12mg

In the event of an inadvertent temperature excursion the following data may be used:

Spinraza may be stored in its original carton, protected from light at or below 30°C for up to 14 days. Furthermore, prior to administration, unopened vials of Spinraza can be removed from and returned to the refrigerator if necessary. If removed from the original carton, the total combined time out of refrigeration should not exceed 30 hours, at a temperature that does not exceed 25°C.

Contact Biogen for additional information in cases where a deviation from the recommended storage conditions has occurred. Please refer to the BNF for contact details.

As described above
As described above
1st May 2019
London MI Service

New Medicines

Spinraza · Spinal muscular atrophy (5q)


New molecular entity

Development and Regulatory status


Jan 18: Spinraza (nusinersen) is available in the UK but not currently routinely commissioned by the NHS. Available to selected NHS patients through an expanded access programme [23].

Aug 17: Launched in Germany, Norway, Iceland, Finland, Denmark and Sweden [22].

Jun 17: Biogen discussing list price with Department of Health, launch expected imminently [21].

Jun 17: Approved in EU [20]

Apr 17: EU positive opinion for treatment of 5q spinal muscular atrophy [17].

Jan 17: Launched in the US for spinal muscular atrophy in all ages [18].

Dec 16: Approved in US [16].

Oct 16: Also filed in EU [14].

Sept 16: Biogen announces that the rolling New Drug Application (NDA) to the FDA has completed and the company has applied for Priority Review - if granted, this shortens the review period once the FDA has accepted the application. Biogen also plans to submit a European Marketing Authorisation Application (MAA) to the EMA ´within the next few weeks´, having already gained ´Accelerated Assessment´ status from the CHMP (reduces CHMP timeframe from 210 days to 150 days) [13].

Aug 16: following the successful outcome of the ENDEAR study, Biogen has exercised its option to commercialise nusinersen globally and will initiate regulatory filings in the coming months [12].

Jun 15: Isis is currently collaborating with Biogen to develop and potentially commercialize ISIS-SMNRx to treat patients with SMA [9].

Mar 15: given approved name nusinersen; drug has EU orphan designation for spinal muscular atrophy (EU/3/12/976) [8].

Oct 14: PIII ENDEAR study begins recruitment of 110 infants to assess the effect of ISIS-SMNrx on survival and need for ventilation. Isis plans to launch a second PIII study (CHERISH) in 2014 in older children with SMA [6].

Aug 14: Estimated primary completion date (final data collection date for primary outcome measure) for P3 ENDEAR study is June 2017. [5]

Feb 14: Isis, which is developing SMNRx with Biogen Idec, remains on track to initiate two PIII studies, one in children and one in infants with SMA, later this year [3]


ISIS-SMNRx is designed to alter the splicing of a closely related gene (SMN2) to increase production of fully functional SMN protein.
Spinal muscular atrophy (SMA) is the 2nd most common lethal autosomal recessive disease in Caucasians after CF. International incidence = 7.8-10 cases /100,000 live births. UK carrier frequency = 1/60-80,000 individuals. There is no drug treatment/cure. [2]
Spinal muscular atrophy (5q)

Further information

June 2019

Trial or other data

Feb 18: Results of PIII CHERISH study (NCT02292537) published in NEJM. Trial (n=126) found intrathecal nusinersen was associated with an improvement in HFMSE score at 15 months (least-squares mean difference in change from baseline of 5.9 points vs sham; 95% CI 3.7 to 8.1; P<0.001) [24].

Nov 16: In the PIII Cherish study, children taking nusinersen showed a highly statistically significant clinically meaningful improvement in motor function vs. those who did not receive treatment, as measured by the Hammersmith Functional Motor Scale Expanded points scale. From baseline to 15 months of treatment, patients who received Spinraza achieved a mean improvement of 4 points, while patients who were not on treatment declined by a mean of 1.9 points. Patients can now move over to its Shine open-label extension study [15].

Aug 16: Ionis and Biogen announce that the pre-specified interim primary endpoint of the ENDEAR study (NCT02193074) has been reached, with an acceptable safety profile; as a result, the trial will be stopped and all participants will be able to transfer to the SHINE follow-up study [12].

Jan 16: Ionis announce that recruitment to NCT02193074 (CHERISH) has reached the enrolment target, and that approximately 117 participants will be evaluated [11].

Nov 15: Isis Pharmaceuticals begins an open-label extension study (SHINE; NCT02594124), enrolling 274 patients in the US. Primary outcome is safety and data collection should complete in Feb 2020 [10].

Jun 15: Isis pharmaceuticals provided an update on its ongoing open-label PII clinical study (n=20) of ISIS-SMN Rx in infants with Type I SMA. The median event-free age increased for infants in both dosing cohorts, from 16.3 months to 19.9 months for the 4 infants in the 6 mg cohort, and from 11.6 months (n=12) to 16.7 months (n=15) for the infants in the 12 mg cohort. Muscle function scores increased from baseline and infants achieved motor milestones since their baseline evaluations. Only a single event has occurred, one infant in the 12 mg cohort required permanent ventilation. There have been no deaths since the previous analysis. The safety and tolerability profile of ISIS-SMNRx to date continues to support further development [9].

Nov 14: Second pivotal PIII study, CHERISH (NCT02193074), initiated. CHERISH is a randomised, double-blind, sham-procedure controlled 15 month study in approximately 120 children aged 2-12 who are non-ambulatory with SMA. Pts will be randomised 2:1 to receive ISIS-SMN Rx or a sham procedure control. Efficacy and safety of a 12 mg dose of ISIS-SMNRx will be evaluated with a primary endpoint of change in the Hammersmith Functional Motor Scale-Expanded (HFMSE), a validated method to measure changes in muscle function in patients with SMA. The study is due to complete in June 2017 [7].

Oct 14: In a PII study in 20 infants with SMA, in the 6 mg cohort: there have been two events (one accidental death and one permanent ventilation); median event-free age is 16.3 months. In the 12 mg cohort: median event-free age is 11.6 months; of the 12 infants, nine are alive without the need for permanent ventilation [6].

Aug 14: P3 ENDEAR study (NCT02193074) initiated. ENDEAR is a randomised, double-blind, sham-procedure controlled thirteen month study in approximately 110 infants diagnosed with SMA. The study will evaluate the efficacy and safety of a 12mg dose of ISIS-SMNRx with a primary endpoint of survival or permanent ventilation. Additional efficacy endpoints are also included in the study. Estimated primary completion date (final data collection date for primary outcome measure) is June 2017. [4,5]

Feb 14: Interim results from an open-label, multiple dose study (3, 6 and 9mg) showed that children on highest dose experienced an average increase of 3.7 points in muscle function score. An increase in SMN protein was also observed. Children going on to the extension study will be given a maintenance dose of 12mg every six months. Interim results on a further PII open label, multiple dose study in infants with SMA showed that all four infants in the 6mg cohort remained in the study for more than six months and are now 9.5 to 16 months old. All four are alive with none requiring permanent respiratory assistance [3].

Severity of SMA correlates with amount of SMN protein. SMN is critical to the health and survival of nerve cells in the spinal cord responsible for neuromuscular growth and function. Infants with Type I SMA (most severe form) produce very little SMN protein and have a life expectancy of < 2years. Children with Type II (most common form) have more SMN protein but still have a shortened lifespan and are never able to stand independently. Children with Type III have a normal lifespan but accumulate life-long physical disabilities as they grow. [1]

Feb 14: NCT01839656 is an open-label, dose-escalation phase 2 study in infants (age 3 weeks - 7 months) with Type I SMA. All infants from the 6 mg dose cohort have completed the three initially scheduled doses and, under the amended protocol, are eligible to receive an additional 12 mg dose six months after their initial three scheduled doses. [1]

Feb 14: Phase II Study NCT01703988 is an open-label, dose-escalation study designed to assess the safety, tolerability and pharmacokinetic profile of ISIS-SMNRx in children with Type II and Type III SMA. All children have been dosed in the initial three cohorts (3 mg, 6 mg and 9 mg) and the first has been dosed in the 12 mg cohort. The open-label extension study is designed to provide a single additional dose of 12 mg (n> 50 aged 2-15 yrs who have completed dosing with ISIS-SMNRx in other studies). [1]

Evidence based evaluations