The CYPRESS Study for Patients with Post-Traumatic Stress Disorder (PTSD)

Clinical Trial Title

A Phase 3, Multicenter, Randomized, Double-blind Trial of Fixed-Dose Brexpiprazole as Combination Therapy with Sertraline in the Treatment of Adults with Post-traumatic Stress Disorder

National Clinical Trial Number:


Contact Information

Clinical Trial Protocol Description:

The CYPRESS Study: a randomized, double-blind phase 3 study of an investigational drug for the treatment of PTSD.

Clinical Trial Eligibility Criteria:

In order to participate you must meet the following criteria:

  • Are 18 to 65 years of age.
  • Have had PTSD symptoms for at least 6 months.

This is a partial list of eligibility requirements. To inquire about your eligibility, please call the contact number provided. If you wish to inquire via email, please include the title of the study in your message.

Study Details

Clinical Trial Investigator

John Zajecka MD

Contact Information

Linda Skaggs


RUSH University Medical Center

1620 W Harrison St
Chicago, IL 60612

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