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. 2023 Apr 25;30(9):685–697. doi: 10.1038/s41434-023-00401-5

Table 1.

Completed OA IV clinical trials.

Study number phase country(ies) Study design/route of administration/duration of treatment Number of subjects Diagnosis of patients SMA type (SMN2 Copy No.) NCT number

START

Phase 1

United States

Open-label, single-center

IV

Single dose

15 Patients with SMA Type 1 with 2 copies of SMN2 < 6 months of age at the time of gene replacement therapy. 1 (2) NCT02122952

STR1VE

Phase 3

United States

Open-label, single-arm, multicenter

IV

Single dose

22 Patients with SMA Type 1 with 1 or 2 copies of SMN2 < 6 months of age at the time of gene replacement therapy 1 (1,2) NCT03306277

SPR1NT

Phase 3

Global (multi-countries)

Open-label, single-arm, multicenter

IV

Single dose

29 Pre-symptomatic patients with genetically confirmed SMA Type 1 or 2 with 2 or 3 copies of SMN2, ≤ 6 weeks of age at the time of gene replacement therapy

1, 2

(2, 3, 4)

NCT03505099

STR1VE-EU

Phase 3

Europe

Open-label, single-arm, multicenter

IV

Single dose

33 Patients with SMA Type 1 with 1 or 2 copies of SMN2 < 6 months of age at the time of gene replacement therapy 1 (1,2) NCT03461289

STR1VE-AP

Phase 3

Asia

Open-label, single-arm, multicenter

IV

Single dose

2

Patients with SMA Type 1 with 1 or 2 copies of SMN2

 < 6 months of age at the time of gene replacement therapy

1 (1, 2) NCT03837184