Long-term survival of participants in the CENTAUR trial of sodium phenylbutyrate-taurursodiol in amyotrophic lateral sclerosis
© 2020 The Authors. Muscle & Nerve published by Wiley Periodicals LLC. An orally administered, fixed-dose coformulation of sodium phenylbutyrate-taurursodiol (PB-TURSO) significantly slowed functional decline in a randomized, placebo-controlled, phase 2 trial in ALS (CENTAUR). Herein we report results of a long-term survival analysis of participants in CENTAUR. In CENTAUR, adults with ALS were randomized 2:1 to PB-TURSO or placebo. Participants completing the 6-month (24-week) randomized phase were eligible to receive PB-TURSO in the open-label extension. An all-cause mortality analysis (35-month maximum follow-up post-randomization) incorporated all randomized participants. Participants and site investigators were blinded to treatment assignments through the duration of follow-up of this analysis. Vital status was obtained for 135 of 137 participants originally randomized in CENTAUR. Median overall survival was 25.0 months among participants originally randomized to PB-TURSO and 18.5 months among those originally randomized to placebo (hazard ratio, 0.56; 95% confidence interval, 0.34-0.92; P =.023). Initiation of PB-TURSO treatment at baseline resulted in a 6.5-month longer median survival as compared with placebo. Combined with results from CENTAUR, these results suggest that PB-TURSO has both functional and survival benefits in ALS.
Muscle and Nerve
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Paganoni, Sabrina; Hendrix, Suzanne; Dickson, Samuel P.; Knowlton, Newman; Macklin, Eric A.; Berry, James D.; Elliott, Michael A.; Maiser, Samuel; Karam, Chafic; Caress, James B.; Owegi, Margaret Ayo; Quick, Adam; Wymer, James; Goutman, Stephen A.; Heitzman, Daragh; Heiman-Patterson, Terry D.; Jackson, Carlayne E.; Quinn, Colin; Rothstein, Jeffrey D.; Kasarskis, Edward J.; Katz, Jonathan; Jenkins, Liberty; Ladha, Shafeeq; Miller, Timothy M.; Scelsa, Stephen N.; Vu, Tuan H.; Fournier, Christina N.; Glass, Jonathan D.; Johnson, Kristin M.; Swenson, Andrea; and Goyal, Namita A., "Long-term survival of participants in the CENTAUR trial of sodium phenylbutyrate-taurursodiol in amyotrophic lateral sclerosis" (2021). Neurology Articles. 576.