Coronavirus Disease 2019 (COVID-19)

A Study of How Ibuzatrelvir is Taken up Into the Blood of Healthy Adults After Taking Different Tablets of Ibuzatrelvir

A Study to Learn About How Well Yearly Updates to the COVID-19 Vaccine Work to Protect People From COVID-19 and How Much Money People Spend on Healthcare for COVID-19

COVID-19: Human Epidemiology and Response to SARS-CoV-2

A Study to Learn About the Study Medicine Paxlovid (Nirmatrelvir + Ritonavir) in Adults Aged 60 and Older Living in Korean Long-term Care Hospitals Who Have COVID-19

Frespaciguat (MK-5475) in Participants With Hypoxemia Due to COVID-19 Pneumonia (MK-5475-009)

A Study of AK119 (Anti-CD73 Antibody), a Treatment for COVID-19, in Healthy Subjects

Clinical Trial of Efficacy and Safety of Raphamin in the Treatment of Coronavirus Disease 2019 in Outpatients

A Study to Evaluate the Safety and Tolerability of AZD7442 in Chinese Adults

A Randomized, Open-label, Dose-ranging Study in Adults and Pediatric Individuals ≥ 12 Years of Age to Assess the Safety, Immunogenicity, Pharmacokinetics, and Pharmacodynamics of AZD7442, for Pre-exposure Prophylaxis of COVID-19

BCG Vaccination to Protect Healthcare Workers Against COVID-19

Observational Study of Convalescent Plasma for Treatment of Veterans With COVID-19

COVID-19: Pediatric Research Immune Network on SARS-CoV-2 and MIS-C

An Observational Study, Called ROCURS, to Learn About COVID-19 Related Outcomes in People With Cancer Who Are Treated With Tyrosine Kinase Inhibitors (TKIs) Including Regorafenib or Sorafenib

A Study of Rivaroxaban to Reduce the Risk of Major Venous and Arterial Thrombotic Events, Hospitalization and Death in Medically Ill Outpatients With Acute, Symptomatic Coronavirus Disease 2019 (COVID-19) Infection

COVID-19 and Anti-CD14 Treatment Trial

Study of TJ003234 (Anti-GM-CSF Monoclonal Antibody) in Subjects With Severe Coronavirus Disease 2019 (COVID-19)

A Study to Evaluate the Safety and Tolerability of AZD7442 in Healthy Chinese Adults

A Study to Learn About the Medicine Called Nirmatrelvir Used in Combination With Ritonavir in People With Weakened Immune Systems or at Increased Risk for Poor Outcomes Who Are Hospitalized Due to Severe COVID-19

Efprezimod Alfa (CD24Fc, MK-7110) as a Non-antiviral Immunomodulator in COVID-19 Treatment (MK-7110-007)

Dociparstat for the Treatment of Severe COVID-19 in Adults at High Risk of Respiratory Failure