gene therapy

This term describes a specialized medical intervention focused on the genetic level rather than treating symptoms with traditional pharmaceuticals. It carries a highly technical, clinical connotation and is primarily used in medical journals, healthcare settings, and scientific discourse.

Because it refers to a specific medical process or a field of treatment, it is treated as an uncountable noun. You would not refer to "three gene therapies" to mean three separate treatments for one person; instead, you would use partitive phrases such as "a course of gene therapy" or "a type of gene therapy" to specify individual instances or methods.