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Abstract

Aim: To conduct indirect treatment comparisons between risdiplam and other approved treatments for spinal muscular atrophy (SMA). Patients & methods: Individual patient data from risdiplam trials were compared with aggregated data from published studies of nusinersen and onasemnogene abeparvovec, accounting for heterogeneity across studies. Results: In Type 1 SMA, studies of risdiplam and nusinersen included similar populations. Indirect comparison results found improved survival and motor function with risdiplam versus nusinersen. Comparison with onasemnogene abeparvovec in Type 1 SMA and with nusinersen in Types 2/3 SMA was challenging due to substantial differences in study populations; no concrete conclusions could be drawn from the indirect comparison analyses. Conclusion: Indirect comparisons support risdiplam as a superior alternative to nusinersen in Type 1 SMA.

Supplementary Material

File (statistical analysis plan.pdf)
File (supplemental figure 1.ai)
File (supplemental figure 2.ai)
File (supplemental figure 3.ai)
File (supplemental figure 4.ai)
File (supplemental figure 5.ai)
File (supplemental figure 6.ai)
File (supplementary tables.docx)

References

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