NorthWest Biotherapeutics Inc (NWBO)

[CherryTree1]

Why might an approved drug be used for an unapproved use?
From the FDA perspective, once the FDA approves a drug, healthcare providers generally may prescribe the drug for an unapproved use when they judge that it is medically appropriate for their patient.

https://www.fda.gov/patients/learn-about-expanded-access-and-other-treatment-options/understanding-unapproved-use-approved-drugs-label#:~:text=Why%20might%20an%20approved%20drug,medically%20appropriate%20for%20their%20patient.

It is estimated that between 40 and 60 percent of all prescriptions
written in the United States are for off-label uses. Off-label uses are common, especially for treating cancer, AIDS, pediatric conditions and rare diseases.

https://www.mcguirewoods.com/news-resources/publications/health_care/off_label.pdf