Could a neck injection boost talk therapy for PTSD?

This study tests whether adding a nerve block injection (stellate ganglion block) to standard talk therapy (cognitive processing therapy) helps reduce PTSD symptoms more than either treatment alone. About 270 adults with PTSD will be assigned to one of three groups: combination therapy, talk therapy plus a placebo injection, or the nerve block alone. The goal is to see which approach works best for short- and long-term symptom relief.