Streptococcal pneumonia

This study tests a new pneumococcal vaccine (PG4) to see if it is safe and tolerable in adults. About 380 healthy adults will receive either the experimental vaccine, a similar vaccine, a standard vaccine, or a placebo. Participants will be monitored for side effects and give blo…

This study looks at how effective the Prevnar 20 (PCV20) vaccine is at preventing serious lung infections in people aged 65 and older. Researchers will analyze medical records from over 22 million Medicare beneficiaries, comparing those who got the vaccine to those who did not. T…

This study looks at how well a pneumonia vaccine (PCV20) works in people who have recovered from B-cell lymphoma and were treated with anti-CD20 therapy. Researchers want to see if a single dose or a boosted dose is safer and more effective at preventing pneumococcal infections. …

This study tests a fast point-of-care PCR test (Spotfire) that quickly identifies whether a respiratory infection is caused by a virus. The goal is to give ER doctors results faster so they can avoid prescribing antibiotics when they won't help. The trial enrolls 200 adults with …

This study looks at whether air samplers placed in homes can detect viruses that cause colds and flu, and how that compares to standard nasal swabs. About 422 students and their families will participate. The goal is to better understand how respiratory viruses spread through hou…

This study compares new, less invasive ways to collect samples for respiratory virus testing—like a nasal wash or saliva—against the standard deep nose swab. Researchers want to see if these gentler methods work just as well and cause less pain. About 1,000 adults in the emergenc…

This study places a rapid testing device in primary care clinics to help doctors quickly identify whether a cold-like illness is caused by a virus or bacteria. About 8,000 adults with symptoms like cough or runny nose will get a nasal swab, with results in 15 minutes. The goal is…

This study was designed to track how the immune system recovers after CAR-T cell therapy and to test a pneumococcal vaccine (PCV-21) in these patients. It planned to enroll 50 adults with blood cancers or solid tumors. However, the study was withdrawn before any participants were…