View clinical trials related to Stress Disorders, Traumatic.
Filter by:This is a study investigating immune function and relationships to the hypothalamic-pituitary-adrenal (HPA) axis in Post-traumatic stress disorder (PTSD) compared to controls without PTSD. The study involves 99 adult veterans and civilian subjects over a 3 year period. The study involves measuring immune and neuroendocrine parameters from blood samples obtained before and after a dexamethasone suppression test. The aim of the study is to determine whether immune alterations exist in PTSD and whether the immune-HPA axis interactions in this disorder are different from non-PTSD subjects with the future aim of studying whether immune dysregulation in PTSD may be linked to the increased risk for medical and psychiatric comorbidity in this population.
This research project is a follow-up to the prior VA-funded study that found that chronic fatigue reported by many Gulf War veterans may be a symptom of dysfunctional cardiovascular stress response regulation. Specifically, ill veterans had diminished autonomic responses during demanding psychosocial tasks involving high level cognitive processing and emotional stress. There was a close relationship between clinical status of ill veterans and their inability to mount an appropriate physiological response under stress. The main objective of the present investigation is to determine the specific mechanism through which this abnormality may contribute to Gulf War-related chronic fatigue. We also observed that Gulf veterans with posttraumatic stress disorder (PTSD) had the most dampened autonomic activation to stressors involving higher brain activities. The second major focus of this study is to explore the role of a psychiatric disorder, specifically PTSD, as a factor in abnormalities in stress response regulation. This aspect of the study may also provide pertinent information as to the role of stress of military deployment as a contributing factor in post-Gulf War illnesses.
The purpose of this research of 400 participants is to determine whether a drug called risperidone can decrease symptoms of Post-Traumatic Stress Disorder (PTSD). It is a placebo-controlled study, meaning that half of the participants will be assigned to receive a pill that contains no drug. The treatment phase of the study will last for 6 months, during which time participants will continue to receive all their usual treatments in addition to the study treatment and will be asked to complete procedures and assessments (questionnaires, interviews, laboratory tests, physical exams, etc.) related to their PTSD symptoms at various points within the 6-month treatment phase. At the end of the 6-month study, participants will discontinue the study treatment.
The purpose of this study is to examine and compare the effects of two body therapy approaches in women who have experienced child sexual abuse.
The goal of this clinical trial is to compare MDMA-assisted therapy to placebo with therapy in people with chronic, treatment-resistant posttraumatic stress disorder (PTSD). The main question it aims to answer is: Is there a reduction in PTSD symptoms among people given MDMA-assisted therapy compared to placebo with therapy? Participants will receive either MDMA-assisted therapy or placebo with therapy during two blinded experimental sessions spaced three to five weeks apart. During experimental sessions, participants receive an initial dose of 125 mg of MDMA, or placebo, followed by a dose of 62.5 mg of MDMA, or placebo. During this treatment period, participants will also undergo non-drug preparatory psychotherapy sessions and non-drug integrative sessions. The study will test whether MDMA-assisted therapy can be safely given to participants. Researchers will compare PTSD symptoms in the MDMA-assisted therapy group to the placebo with therapy group to see if there is a reduction in symptoms after the treatment period.
This study will develop a cognitive behavioral therapy (CBT) program to treat symptoms of post-traumatic stress disorder (PTSD) in people with severe mental illnesses who are treated within community mental health systems.
To evaluate Post-Traumatic Stress Disorder as a risk factor for cardiovascular disease in American Indians.
This study will compare one- and two-component treatments in women with post-traumatic stress disorder (PTSD).
This 10-week study will examine whether propranolol, a medication that blocks the activity of the stress hormones adrenaline and noradrenaline, can relieve acute stress disorder (ASD) and symptoms from persisting long-term. ASD is a condition that some people develop soon after exposure to trauma. They may be anxious, depressed, have trouble sleeping, startle easily, have difficulties concentrating, and feel as though the event is happening again. Propranolol has been used for many years to treat high blood pressure and heart disease, and has been found useful in treating anxiety states such as social phobia and migraine. Men and women between 18 and 65 years of age who were recently exposed to trauma (between 1 and 3 weeks of evaluation in this study) may be eligible for this study. Candidates must be diagnosed with ASD and must have been mentally healthy before the traumatic event. They will be screened for the study with a medical and psychiatric interview, physical examination, electrocardiogram (EKG), and blood and urine tests. Participants will be evaluated with the following procedures: - Neuropsychological tests using pen-and-paper and computer tests to evaluate cognitive function, particularly memory, learning, attention and concentration, and vocabulary and naming. - Emotion-related performance tasks to determine if the study medication can weaken emotionally arousing information by blocking the activity of adrenaline and noradrenaline. Subjects perform emotion-related and neutral tasks, such as looking at pictures with neutral, pleasant, or unpleasant content, both before and after treatment with the study medication (see below). - Traumatic script exposure: Subjects recount the traumatic event that caused them to develop ASD. The description is summarized, recorded, and played back to the subject. During the playback, physiological responses, such as heart rate and skin conductance (sweating), are recorded using electrodes taped to the hand and chest. - Fear conditioning to evaluate the response to an unpleasant stimulus: Several mild electrical shocks are delivered to the wrists while the subject looks at colored squares. Heart rate and skin conductance are measured. - Magnetic resonance imaging (MRI) to examine brain structure. The subject lies on a table that is moved into the MRI scanner (a narrow cylinder containing a strong magnetic field) and must remain still during the actual scanning. Earplugs are worn to muffle loud noises caused by electrical switching of radio frequency circuits used in the scanning process. After the evaluation, participants are randomly assigned to receive either propranolol or placebo (a look-alike pill with no active ingredient) for 8 weeks During this time they are seen by a doctor once a week for 4 weeks and then once every other week for the rest of the study. At the end of the 8-week treatment period, participants undergo the same evaluation they had before beginning treatment (see above). The decision to continue treatment will then be decided based on the individual's clinical condition and whether he or she received propranolol or placebo.
This study, conducted at the University of Pennsylvania and at the National Institutes of Health in Bethesda, Maryland, will examine deficits in brain structure and function in people exposed to trauma who developed post-traumatic stress disorder (PTSD) to see if these deficits change after treatment. It also will investigate whether there is a genetic susceptibility to PTSD. Candidates 18 years of age and older in the following categories will be included in this study: 1) women who have PTSD of at least 1 year's duration following sexual or non-sexual assault; 2) healthy women (controls) who were previously assaulted but did not develop PTSD; and 3) healthy women (controls) who were never traumatized. Candidates will be screened with a medical history and physical examination, psychiatric evaluation, electrocardiogram (EKG), and routine blood and urine tests. Women with PTSD will be assigned to receive either: 1) 12 weeks of cognitive behavioral psychotherapy either immediately upon enrollment or after a 3-month waiting period; or 2) 10 weeks of drug treatment with paroxetine (Paxil® (Registered Trademark)). Patients will be evaluated before and after treatment with the procedures outlined below. Control subjects will undergo the same procedures, also with a 10- to 12-week interval between evaluations. - Neuropsychological testing: Subjects will take paper and pencil and computer tests to evaluate memory, learning, attention and concentration, vocabulary and naming. - Magnetic resonance imaging (MRI): Subjects will have MRI scans of the brain to examine brain structure and blood flow while they perform two tasks. In the first task, they will be shown a series of faces and asked to press one button for a male face and another button for a female face. In the second task they will hear loud noises and see colored squares. During the scan, subjects lie on a bed that slides into a narrow tunnel (the scanner). They will wear a headset to block the noise of the scanner and through which they will receive instructions for the tasks. Heart rate and skin conductance (sweating) will be measured during the scan to evaluate physiologic changes in response to the tasks. - Eyeblink air puff test: Subjects will hear tones and will have a light puff of air delivered to the eye. Changes in heart rate, sweat, and eyeblink will be measured with electrodes taped to the skin on two fingers, on each side of the rib cage, and under one eye. - Potential air puff delivery: This experiment has three parts. During each of the three parts of this experiment, subjects will see colored lights and may or may not receive a puff of air to the neck. Before each part they will be told that they will, will not, or may receive an air puff to the neck. Each part will be repeated several times. During the test, electrodes will be taped to the arms and chest to monitor skin conductance and heart rate responses. - Blood draw for genetic evaluation: Subjects' DNA will be examined to try to determine if the risk of developing PTSD is inherited. The DNA will be examined for cortisol receptor gene evaluation, to see if a form of this gene is found more often in patients with PTSD than in healthy controls. The receptor for cortisol determines the activity of the stress hormone cortisol, and genetic variations in the structure of this receptor may be related to vulnerability to PTSD. Patients taking paroxetine will be offered up to 3 months of additional drug therapy following completion of the study and will be offered participation in other NIH studies for evaluation and treatment of PTSD.