Clinical trials

The main purpose of this study is to investigate the antiviral effect of S-337395 compared with placebo among nonhospitalized adult participants with high-risk factors for progression to severe RSV infection starting intervention within 72 hours of RSV symptom onset.

The primary purpose of this study is to evaluate the long-term safety and tolerability profile of S-606001 in participants with LOPD. Participants who completed other S-606001 studies (for example, NCT07123155), including participants in a S-606001 study whose allocated arm was terminated by the sponsor and who are willing to participate in this study, will be enrolled globally.

The main purpose of this study is to compare secutrelvir to placebo with respect to resolution of clinical symptoms in nonhospitalized participants with Coronavirus Disease 2019 (COVID-19) starting intervention within 48 hours of COVID-19 symptom onset.

The primary purpose of this study is to evaluate the efficacy and safety of secutrelvir in symptomatic nonhospitalized adult and adolescent participants with COVID-19 who are at high risk for progression to severe disease.

The primary objective of this study is to evaluate the pharmacokinetic (PK) profile of naldemedine and nor-naldemedine after a single oral dose of naldemedine in pediatric participants who are receiving or about to receive opioids.

The purpose of this study is to evaluate the safety, pharmacodynamics (PD), and exploratory clinical efficacy of S-606001 in adult participants with LOPD as an add-on to ERT.

The primary objective of Part A is to evaluate the safety and tolerability of S-531011 and to determine the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) of S-531011 with or without pembrolizumab. The primary objective of Parts B and C is to evaluate the antitumor activity of S-531011 at the RP2D with or without pembrolizumab. The primary objective of Parts D and E is to evaluate the antitumor activity of S-531011 at the RP2D in combination with bevacizumab with our without pembrolizumab.

The purpose of this study is to investigate the safety, tolerability, and pharmacokinetics (PK) of single- and multiple-dose administration of S-892216-LAI in healthy adults.