View clinical trials related to Stress Disorders, Post-Traumatic.
Filter by:This is a research study to examine the effectiveness of a brief screening method that may predict which people with posttraumatic stress disorder (PTSD) or depression are most likely to show a positive response to selective serotonin reuptake inhibitor (SSRI) medications. Participants will be recruited over approximately 5.25 years, until at least 94 participants complete the 17 week study.
Given the high prevalence of post-traumatic stress disorder (PTSD) in veterans and active duty military, the focus of this research study is to test the reliability of two new PTSD assessments, the Clinician Administered PTSD Scale for DSM-5 (CAPS-5) and the PTSD Symptom Scale Interview for DSM-5 (PSSI-5) and compare the results between the two new assessments and the previous "gold standard", the Clinician Administered PTSD Scale for DSM-IV (CAPS-IV). Biomarkers believed to be related to PTSD (e.g., biofluid biomarkers, cognitive and physiological markers, and neural activity as measured by EEG) will be collected to inform targeted interventions in specific groups of patients and other large-scale biomarker discovery efforts in the field. Participants will be 950 male and female active duty military and veterans ages 18 or older who have been exposed to at least one traumatic event.
Post-traumatic stress disorder (PTSD) refractory to treatment is marked by failure of fear extinction and its biological substrate, amygdala reactivity to trauma reminders. Decades of research have clarified the neuronal mechanisms coordinating fear extinction and consolidation. Fear cells and extinction cells in the basolateral amygdala (BLA) alter their firing rate based on the nature of the stimulus and the influence from the medial prefrontal cortex (mPFC) and the ventral hippocampus (vHPC). Together, the BLA, mPFC, and the vHPC form an anxiety-processing network where the BLA links stimulus to emotion, the vHPC provides memory context, and the mPFC coordinates extinction or consolidation. Local field potential (LFP) recordings from the BLA have revealed specific signals that correspond to an enhanced fear state. Previous studies have shown that neuromodulation of the BLA can promote extinction in a rodent model and in a treatment-refractory PTSD patient. This action is likely carried by disrupting fear signals within the BLA; however, continuous neurostimulation may also disrupt normal function of the amygdala. The present application proposes to investigate the use of Responsive Neurostimulation (RNS, Neuropace) in six (6) veterans suffering from severe treatment-resistant PTSD. This dual-activity device will allow us to chronically record LFPs from the BLA under specific conditions such as fear conditioning, exposure to trauma reminders, and emotional memory encoding and retrieval. In addition, the neural activity will be captured during real-life symptoms of flashback and nightmares. These recordings will provide the specific electrophysiological biomarkers of hypervigilance and re-experiencing. The device will then be programmed to detect and treat these biomarkers with a pre-determined electrical pulse. The patients will be followed prospectively using psychological scales but also with functional neuroimaging and electroencephalograms. These modalities will be used to determine the extent of circuit engagement as a result of the therapy. By approaching PTSD from a fear processing mechanism perspective, our project will serve as a proof of concept for other circuit-based therapies in psychiatry. This proposal is a multi-departmental effort involving 11 investigators across 7 departments and requires a close collaboration between clinical and basic scientists. As a result, the findings underlying chronic recordings will bridge the basic science results from fear conditioning research to clinical neural processes in PTSD patients.
Exaggerated inflammation in the body and brain is thought to play a role in the vulnerability to and aggravation and perpetuation of adverse consequences among those with posttraumatic stress disorder (PTSD). The proposed study begins the process of investigating the use of a natural immunoregulatory/anti-inflammatory probiotic, Lactobacillus rhamnosus GG (LGG; ATCC53103), to treat chronic symptoms associated with PTSD among Veterans. By looking at the impact of probiotic supplementation on biological signatures of increased inflammation, as reflected by biomarkers of inflammation, gut microbiota composition, intestinal permeability, stress response, decision making, and PTSD symptoms, this study may identify a novel intervention for the treatment of symptoms associated with this frequently occurring condition.
Sexual assault can lead to devastating consequences including the development of chronic conditions including posttraumatic stress disorder (PTSD) and alcohol use disorders (AUD). Interventions delivered soon after exposure to assault can decrease the long-term negative consequences of sexual assault but existing interventions are limited in their ability to target concurrent PTSD symptoms and alcohol use and little is known about how to make best practice treatment decisions in the early period following sexual assault. A greater emphasis on transdiagnostic processes that are related to both PTSD and alcohol use, such as fear and reward systems, can elucidate mechanisms of recovery, lead to the development of more effective intervention approaches, and guide clinical decision making for patients recently exposed to sexual assault.
In brief, ART is an innovative "mind-body" (body-centric) psychotherapy that makes use of established core components of trauma-focused therapy including imaginal exposure and imagery rescripting to promote memory reconsolidation, all facilitated as the patient is directed by the therapist to perform sets of lateral left-right eye movements similar to rapid eye movements (REM). The investigators propose to investigate how ART may directly influence heart rate variability (HRV), EEG power spectral densities, and sleep architecture in three aims. At the broadest level, the investigators postulate that both within individual ART sessions, and across the full course of treatment (e.g. up to 4 sessions), ART results in a profound shift from sympathetic (arousal) to parasympathetic (rest) nervous system balance, and that this shift can be reliably measured by neurophysiological assessment using electrocardiogram (ECG) and electroencephalogram (EEG) measurement.
The goal of this study is to look at how a type of drug called cannabinoids are related to the processing of fear signals, the experience of emotions and fear, and the pattern of activity in the brain that is involved in these processes and how this relates to the treatment of post-traumatic stress disorder (PTSD). PTSD is an anxiety disorder that occurs after experiencing a traumatic event(s) and is characterized by unwanted memories of the trauma(s) through flashbacks or nightmares, avoidance of situations that remind the person of the event, difficulty experiencing emotions, loss of interest in activities the person used to enjoy, and increased arousal, such as difficulty falling asleep or staying asleep, anger and hypervigilance. The information gained from this study could lead to the development of new treatments for persons who suffer from anxiety or fear-based disorders.
Study to provide evidence of efficacy for Rapid Resolution Therapy in symptoms of PTSD, Anxiety, and Depression in survivors of sexual violence.
We propose to study the effects of Physician Orders for Scope of Treatment (POST) Facilitation in a randomized controlled trial in a population of community dwelling older adults who qualify for POLST facilitation, including those with normal cognition and those with Alzheimer's Disease and Related Disorders.
The overarching goal of the proposed project is to evaluate a randomized clinical trial of the Pregnant Moms' Empowerment Program aimed at detecting its effects on maternal mental health, re-victimization, parenting sensitivity, and infant development. The project also seeks to examine theoretically-grounded mechanisms of change, including social support and empowerment. Women participating in the study will receive either the PMEP or participate in a contact-equivalent active control group during pregnancy, and will be interviewed at baseline, post-intervention and with their infants at 3 months and 1 year old. The study will occur at two sites - the University of Notre Dame and the University of Memphis. Participants will be recruited from the local community at both locations, with an equal number of women drawn from each site - Memphis, Tennessee (n=115) and South Bend, Indiana (n=115). Enrollment will continue for approximately 2.5 years, with an expected rate of 8 eligible women per month, based on a pilot study of the Pregnant Moms' Empowerment Program. The expected duration of the study for each participant will be approximately 1.5 years, with some variation due to women enrolling at different points in their pregnancy. The primary objective of the proposed project is to determine if the Pregnant Moms' Empowerment Program has positive effects on maternal mental health, re-victimization rates, parenting sensitivity, and infant development compared to women's participation in a contact-equivalent active control group. This objective will be evaluated using a multi-site randomized clinical trial design. Participants (N = 230) will be equally randomized into study arms. Eligible women will include those who are: 1) currently pregnant (primi or multiparous) and between 10 and 30 weeks gestation, 2) experienced IPV within the past year, 3) English speaking and 4) age 16 or older. The study will include 9 total visits: 4 assessments and 5 sessions for both study arms. In-person assessment visits will be completed by a trained research assistant; each visit will take approximately 2-3 hours, with post-partum assessments somewhat longer than prenatal assessments given the addition of the infant developmental assessment and parent-child observation task. Women will be compensated $30 for the first two assessments and $50 for the second two assessments. Following the final assessment, women will be invited to complete a daily diary (virtually) each day for 30 days. Each survey will take approximately 5-10 minutes to complete, and women will be compensated $2 for each completed survey. Women will also receive a $10 bonus for each set of 10 consecutive surveys. Treatment sessions will be 2 hours in duration. Women in the PMEP will complete a structured set of sessions: (1) supporting each other, support in the community, (2) identifying and understanding sources of distress, (3) cognitive and behavioral strategies to build resilience and resolve conflict, (4) perinatal health and infant care, and (5) positive parenting. Women in the active control condition will participate in facilitated discussions on a topic identified by the group. All sessions will be audio recorded so that treatment fidelity can be evaluated (for the Pregnant Moms' Empowerment Program) and so that content overlap can be assessed (for the active control condition).