RecruitingPhase 3Drug trialA Trial to Assess the Efficacy and Safety of Engasertib in Participants With Moderate to Severe Hereditary Hemorrhagic Telangiectasia (HHT)The primary objective of this trial is to assess the efficacy of engasertib 40 mg once daily (QD) in reducing the frequency of epistaxis compared to placebo QD during 28 weeks of double-blind treatment in participants with moderate to severe HHT.