Sufficiency at the priority date: A study protocol is not "the same" as a therapeutic effect invention (T0883/23)

Therapeutic inventions are generally not considered sufficiently disclosed absent supporting data. The recent decision in T 0883/23 found that this applies both at the priority date and the filing date of the patent. In this case, the priority document described the dose finding study protocol, whilst the patent claimed and provided data supporting the selection of a particular dosage