P3B

P3B is an acronym that can refer to several unrelated concepts, depending on the context. It does not have a single, universally recognized meaning.

In clinical research, P3B is sometimes used as shorthand for Phase 3b trials. These studies occur after an initial Phase 3 program and are designed to confirm and extend findings on a drug’s efficacy and safety, often by exploring additional populations, dosing regimens, or comparative effectiveness. The exact terminology varies by sponsor and regulator, and many sources prefer the explicit term Phase 3b rather than the abbreviated form.

In technology and industry contexts, P3B may appear as an internal designation, model code, or project name. Because these uses are company-specific and not standardized, the meaning of P3B can differ from one organization to another.

Given its context-dependent nature, readers should interpret P3B from the surrounding text and, if possible, consult the source for clarification. If the document concerns medicine, regulation, or clinical development, Phase 3b is a likely reference; in other domains, P3B is more commonly a product, model, or project identifier.

See also: Phase 3, clinical trial phases; disambiguation of acronyms.