TESICO (Therapeutics for Severely Ill Inpatients with COVID-19) is a master protocol to evaluate the safety and efficacy of investigational agents aimed at improving outcomes for patients with acute respiratory failure related to COVID-19.

This is a randomized, double-blind, placebo-controlled study designed to evaluate treatment with brexanolone in participants with acute respiratory distress syndrome due to COVID-19.Participants will receive continued standard of care in addition to a continuous IV infusion of brexanolone or placebo for 60 hours while hospitalized. Study participation will last approximately 28 days.

This study is testing an experimental drug called "LY3819253" that will provide antibodies that is thought to fight the COVID-19 virus.The subject will receive the study drug (either the experimental study drug or the placebo) only once, on the day he/she joins the study (study "Day 0"). The subject will get it by an intravenous (IV) drip through a tube attached to a needle in the arm. This is called an infusion. As part of the study the subject will also get a study drug called remdesivir once a day intravenously for up to 10 days while in the hospital, as care for COVID-19, unless the study doctor thinks remdesivir would not be safe to be taken. The study will last for 90 days.

This is a research study of different ways to use intravenous fluids (fluids given through a small tube placed in the vein) and vasopressors (medicines used to raise blood pressure) to treat sepsis, which is a serious infection. We are asking you to be in this study because: a) you have been diagnosed with low blood pressure due to an infection and b) your blood pressure has stayed low after your doctors gave you fluids. We do not know which approach is better in this situation: a)starting medicines to raise blood pressure first and then giving more fluids (if needed), or b) giving a larger amount of fluids first and then giving medicines to raise blood pressure if needed. Right now, the choice of approach is left to the doctors. Some doctors use medicines to raise blood pressure followed by extra fluids, and others use extra fluids followed by medicines to raise blood pressure. Some doctors use a combination of the two. This treatment part of the study will last for 24 hours, and then we will follow you until you go back to where you live. We want to find out whether one of these approaches compared to the other can improve a patient's chances of survival.