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NCI Drug Dictionary


fluorine F 18 fluoro furanyl norprogesterone 
The progesterone derivative fluoro furanyl norprogesterone (FFNP), radiolabeled with fluorine F 18, with positron-emitting radioligand activity. Upon injection, fluorine F 18 fluoro furanyl norprogesterone (F18-FFNP) binds to progesterone receptors (PgR) in progesterone-responsive tissues. In PgR-positive breast cancer, positron emission tomography (PET) may then be used to quantitate hormone receptor status. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
Abbreviation:F18-FFNP