Examining the Efficacy of Short-Term Intensive PTSD Treatment on Psychological and Cognitive Impairment Symptoms

BEHAVIORAL

Cognitive Processing Therapy

CPT is an empirically supported psychotherapy for PTSD that focuses on why patients believe the traumatic event occurred, how that event affected their beliefs about self and others, and how to evaluate their beliefs. Patients learn to label events, thoughts, and subsequent emotions while the therapist helps them examine the facts Session Focus and context of the trauma through Socratic questioning. Using progressive worksheets, patients are taught to examine their own thoughts and emotions and develop new, more balanced thinking about traumatic events. CPT's safety and efficacy is well-established; over 80% of patients receiving the treatment benefit and \> 50% reductions in PTSD symptoms are typical.

BEHAVIORAL

Eye-Movement Desensitization and Reprocessing

EMDR is another empirically supported trauma-focused psychotherapy that is strongly recommended for the treatment of PTSD by the VA/DOD Clinical Practice Guideline for the Management of Posttraumatic Stress Disorder and Acute Stress Disorder (VA/DOD, 2023). Results of multiple clinical trials indicate EMDR's effectiveness for reducing PTSD symptoms is comparable to CPT's. EMDR directs patients to think about different aspects of an emotionally upsetting memory in mind while simultaneously focusing on an external stimulus. The most common external stimulus is therapist-directed lateral eye movements (e.g., tracking the movement of a therapist's finger back and forth with only the eyes) but other stimuli (e.g., hand-tapping, audio stimulation) can also be used. Half of participants who do not reach good end-state by session 10 will be randomly assigned to receive up to 5 sessions of EMDR during Stage 2.

Good End-State Functioning

Time frame: From enrollment to the end of study participation 12 months after enrollment

Good end-state is defined as (a) a score on the PCL-5 ≤ 19 and (b) mutual agreement by the patient and therapist that the patient has achieved the therapy's goals. The PCL-5 is a validated self-report scale that assesses the severity of DSM-5-defined PTSD symptoms within the past week. 28 Items are summed so that higher scores reflect greater symptom severity. Previous research shows that over 94% of military personnel with good end-state following trauma-focused therapy had clinically meaningful improvement in PTSD symptoms using the Reliable Change Index and 79-100% no longer meet DSM-5 criteria for a diagnosis of PTSD.

What is a clinical trial?

A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.

Is it safe to participate?

Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.

Will I be compensated?

Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.

Will I receive a placebo instead of treatment?

When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.

Can I leave a trial if I change my mind?

Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.

How long does a clinical trial last?

Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.