This is a controlled, open-label, single-ascending dose study to evaluate the safety and tolerability of SGT-001 in adolescents and children with Duchenne muscular dystrophy (DMD). Participants will receive a single intravenous (IV) infusion of SGT-001 and will be followed for approximately 5 years. The protocol was amended to drop the control arm after 4 participants were dosed.
Phase 1 trials primarily test safety and dosing in a small number of participants (typically 20–100). Results do not yet speak to efficacy. FDA approval is typically many years away from this stage.
Phase 2 trials begin testing efficacy in a larger patient group (100–300). This is often where biotech binary events occur — positive Phase 2 data can significantly advance a company's pipeline narrative, while failures can be terminal for a program.
Enrollment is complete. The trial is in its follow-up or data collection phase — a readout may occur on or near the primary completion date.
Solid Biosciences (SLDB) is the sponsoring company for this trial. BiotechSign currently grades this company D (41/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.