What this phase means
This study does not use the classic phase 1–4 drug ladder. It may be a device, a behavior program, a surgery timing study, or an early feasibility test.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are R848, or Saline. The registry lists allocation as randomized. Respiratory viral infections can be a cause of significant illness, particularly in vulnerable individuals as seen in the COVID-19 pandemic.
They plan to enroll about 36 people at Cambridge. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
Lung Immune Challenge Study Controlled Exposure to Inhaled Resiquimod (R848) to Study Mechanisms of Inflammation
Interventions: R848, Saline
Primary outcome (registry wording): Change in Serum or Sputum CXCL10