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2,385 active trials for COVID-19

A Study of Micro Dose Ambrisentan in Hospitalized Patients With Respiratory Insufficiency Due to COVID-19

Patients with COVID-19 frequently develop lower respiratory complications. Difficulty breathing and a low concentration of oxygen in the blood are of concern in patients with COVID-19, as they indicate that the lungs may be significantly affected. In some patients, respiratory symptoms may progress to the point where oxygen support is needed (i.e. use of an oxygen prongs, mask or ventilator). The exact mechanism of why patients with COVID-19 develop low concentrations of oxygen in blood is not fully understood. Some data suggest that the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), the virus causing Coronavirus Disease 2019 (COVID-19), can affect the body's blood vessels directly and extensively. In the lung, blood vessels participate in the absorption of oxygen. Endothelin is a potent hormone produced by human blood vessels. When increased, endothelin can result in the narrowing of blood vessels in the lung and decrease the volume of blood flowing through the lungs. This decrease in in blood flow through the lungs may be one of many factors affecting normal lung function. Ambrisentan can block the effects of endothelin in the body, and this could theoretically improve blood flow through the lungs. This study will evaluate whether ambrisentan, by blocking the effects of the hormone endothelin in the lungs, improves the breathing capacity of patients with COVID-19, increases the concentration of oxygen in the blood and prevents the progression to respiratory failure and death. Ambrisentan is a drug that is currently used to treat patients with pulmonary hypertension, a disease where blood flow through the lungs is decreased. Subjects participating in this study are those patients hospitalised with severe respiratory symptoms related to COVID-19, and are considered to be at high-risk of developing respiratory complications. Ambrisentan will be administered in the hospital, and will be continued at home for up to 28 days. In this study, ambrisentan will be administered at much lower doses that those used in patients with pulmonary hypertension.

Start: February 2021
A Study to Test BI 767551 in People With Mild to Moderate Symptoms of COVID-19

This study is open to adults with mild to moderate symptoms of COVID-19 (coronavirus disease). The purpose of this study is to find out whether a medicine called BI 767551 helps people with COVID-19. BI 767551 is an antibody against the coronavirus. The study has 2 parts. Part 1 wants to find out the best dose of BI 767551 given as infusion into a vein. It also tests how BI 767551 is taken up by the body when taken via an inhaler. Participants are put into 4 groups by chance. Participants get BI 767551 or placebo once. 1 group gets a high dose of BI 767551 as an infusion into a vein 1 group gets a low dose of BI 767551 as an infusion into a vein 1 group gets BI 767551 via an inhaler 1 group gets placebo both as an infusion into a vein and via an inhaler The placebo infusion and inhaler look like the BI 767551 infusion and inhaler but do not contain any medicine. Doctors check how BI 767551 reduces the amount of coronavirus. Once the best dose of BI 767551 is found, part 2 of the study tests BI 767551 in a larger group of people. Also, in part 2, the participants get BI 767551 or placebo as an infusion into a vein once. In this part, doctors will check how many people need to be treated in a hospital or die. The results will be compared between the groups. For each part, participants are in the study for about 13 weeks. During this time, they visit the study site about 8 times and get about 3 remote visits. The doctors also regularly check participants' health and take note of any unwanted effects of BI 767551.

Start: April 2021
Study to Describe the Safety, Tolerability, Immunogenicity, and Efficacy of RNA Vaccine Candidates Against COVID-19 in Healthy Individuals

This is a Phase 1/2/3, randomized, placebo-controlled, observer-blind, dose-finding, vaccine candidate-selection, and efficacy study in healthy individuals. The study consists of 2 parts: Phase 1: to identify preferred vaccine candidate(s) and dose level(s); Phase 2/3: an expanded cohort and efficacy part. The study will evaluate the safety, tolerability, and immunogenicity of 3 different SARS-CoV-2 RNA vaccine candidates against COVID-19 and the efficacy of 1 candidate: As a 2-dose (separated by 21 days) schedule; At various different dose levels in Phase 1; As a booster; In 3 age groups (Phase 1: 18 to 55 years of age, 65 to 85 years of age; Phase 2/3: ?12 years of age [stratified as 12-15, 16-55 or >55 years of age]). The candidate selected for efficacy evaluation in Phase 2/3 is BNT162b2 at a dose of 30 µg. Participants who originally received placebo will be offered the opportunity to receive BNT162b2 at defined points as part of the study. In order to describe the boostability of BNT162, and potential heterologous protection against emerging SARS-CoV-2 VOCs, an additional dose of BNT162b2 at 30 µg will be given to Phase 1 participants approximately 6 to 12 months after their second dose of BNT162b1 or BNT162b2. This will provide an early assessment of the safety of a third dose of BNT162, as well as its immunogenicity. The assessment of boostability will be further expanded in a subset of Phase 3 participants at selected sites in the US who will receive a third dose of BNT162b2 at 30 µg or a third and potentially a fourth dose of prototype BNT162b2VOC at 30 µg (BNT162b2s01, based upon the South African variant and hereafter referred to as BNT162b2SA). A further subset of Phase 3 participants will receive a third, lower, dose of BNT162b2 at 5 or 10 µg. To further describe potential homologous and heterologous protection against emerging SARS-CoV-2 VOCs, a new cohort of participants will be enrolled who are COVID-19 vaccine-naïve (ie, BNT162b2-naïve) and have not experienced COVID-19. They will receive BNT162b2SA given as a 2-dose series, separated by 21 days.

Start: April 2020