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Kaplan–Meier analyses: CENTAUR PB and TURSO group and PRO‐ACT external control group. Kaplan–Meier plot for the CENTAUR PB and TURSO group is from the ITT analysis previously conducted at a cutoff date coinciding with the final participant visit in CENTAUR. 2 ITT, intent‐to‐treat; OS, overall survival; PB and TURSO, sodium phenylbutyrate and taurursodiol; PRO‐ACT, Pooled Resource Open‐Access ALS Clinical Trials database.
