Kinetic Modeling of Norepinephrine Transporter Availability in PTSD
The objective of this proposal is to collect pilot data to characterize the binding of [11C]MENET in combat-exposed war veterans with posttraumatic stress disorder (PTSD). Approximately two hundred thousand veterans will be returning stateside upon the end of combat operations in Iraq, and 13% of returning veterans will have PTSD. 15% of all war veterans will develop chronic PTSD symptoms requiring a lifetime of mental health care. Little is known about the dysregulation of PTSD veteran's neurochemical state including the noradrenergic system which plays a primary role in memory and stress response. This includes heightened anxiety, fear and hyperarousal symptoms characteristic of PTSD. The noradrenergic system is a concentration of neurons in the brainstem nucleus, locus coerulues, that have projections to the amygdale and prefrontal cortex. The norepinephrine transporter (NET) is responsible for regulating and terminating noradrenergic transmission, and is a specific marker for neuronal integrity. Hyperactivity of the noradrenergic system up-regulates NET protein. An unresolved problem in studying the noradrenergic system is identification of suitable radiopharmaceutical to non-invasively measure alterations in the density of NET. The investigators propose to address this challenge by using positron emission tomography (PET) to measure stress-induced changes in NET expression in combat-exposed war veterans with PTSD. The central hypothesis of this proposal is that war veterans with PTSD have an up-regulation of NET in the locus coerulues resulting from hyperactivity of the noradrenergic system compared to healthy controls. Through a series of experiments, the investigators will determine the in vivo binding characteristics of [11C]MENET. The investigators will use this information to optimally design an experimental protocol to measure the availability of NET in a pilot group of combat-exposed war veterans with PTSD. The aims of this proposal are: 1) Measure the uptake kinetics and whole brain distribution of [11C]MENET in combat-exposed veterans with PTSD and healthy controls, 2) Develop a quantitative kinetic model of [11C]MENET uptake to calculate the NET availability in brain. The subjects undergoing imaging in this work will be recruited by Dr. J. Douglas Bremner (Co-Investigator) at Emory University and Atlanta Veteran Affairs Hospital. Our long-term goal is to develop a longitudinal study framework to assess the NETs dysregulation during onset of PTSD as well as its transition to chronic lifetime PTSD.
NCT01799837 — Posttraumatic Stress Disorder
Status: Completed
http://inclinicaltrials.com/posttraumatic-stress-disorder/NCT01799837/
A Randomized, Double-Blind, Dose Response Phase 2 Pilot Study of Manualized MDMA-Assisted Psychotherapy in Subjects With Chronic, Treatment-Resistant Posttraumatic Stress Disorder (PTSD)
Posttraumatic stress disorder (PTSD) is a debilitating psychiatric disorder that can develop after a traumatic life experience that severely reduces quality of life. This Phase 2 pilot study examined the safety and efficacy of MDMA-assisted psychotherapy in 23 subjects with chronic, treatment-resistant posttraumatic stress disorder (PTSD). This study is part of a global series of Phase 2 pilot clinical trials. This randomized, double-blind, dose response study assessed two active doses of MDMA, 100 mg and 125 mg, to a comparator dose of MDMA (40 mg) during psychotherapy sessions. The initial dose was followed 1.5 to 2.5 hours later by an optional supplemental dose of MDMA that was half the size of the first dose. MDMA was administered in two experimental sessions lasting up to eight hours and scheduled three to five weeks apart. Subjects were prepared for MDMA-assisted psychotherapy prior to the first session in three preparatory sessions, and worked with the same pair of therapists throughout the study. After each MDMA-assisted psychotherapy session, subjects had three integrative sessions with their therapist team to process and understand their experience. This study assessed the change in symptoms of PTSD, as measured by the Clinical Administered PTSD Scale (CAPS) [Blake et al., 1995], as well as symptoms of depression, as measured by the Beck Depression Inventory II (BDI-II) [Beck, A.T. and R.A, 1984; Beck, A.T., et al., 1996] from baseline enrollment to one month after the second MDMA-assisted psychotherapy session (primary endpoint). Participants who received the comparator dose of MDMA (40 mg) were given the option to enroll in Stage 2, where they underwent three open-label MDMA-assisted psychotherapy sessions with an active dose of MDMA. People who received either of the active doses of MDMA in Stage 1 had a third MDMA-assisted psychotherapy session with another active dose of MDMA.
NCT01793610 — Posttraumatic Stress Disorder
Status: Completed
http://inclinicaltrials.com/posttraumatic-stress-disorder/NCT01793610/
Effects of Narrative Writing Duration and Post-writing Processing Instructions on PTSD
The current study proposes to directly measure how processing after participating in written disclosure about a traumatic life event affects physical and psychological outcomes.
NCT01773811 — Posttraumatic Stress Disorder (PTSD)
Status: Completed
http://inclinicaltrials.com/posttraumatic-stress-disorder-ptsd/NCT01773811/
Internet Based Treatment Using Virtual Reality in the Prevention of PTSD
The goal of the project is to overcome some of the common barriers to treatment amongst recent survivors of traumatic events, by combining the world of evidence-based intervention with that of modern Internet technology. Specifically, it aims to test the feasibility and effectiveness of an Internet delivery of early-intervention trauma-focused cognitive behavioral therapy (CBT) for preventing post-traumatic stress disorder (PTSD). Over the course of the study the following objectives will be achieved: 1. The development of an Internet-based Virtual Reality intervention for preventing PTSD among patients who have recently experienced a traumatic event. 2. The evaluation of the feasibility of administering this intervention, and 3. The evaluation of the efficacy of this Internet based intervention in the prevention of PTSD in recent trauma survivors.
NCT01760213 — PTSD
Status: Not yet recruiting
http://inclinicaltrials.com/ptsd/NCT01760213/
Integrative Risk Reduction and Treatment for Teen Substance Use Problems and PTSD
Adolescents receiving RRFT and their caregivers will report significantly fewer substance use problems (quantity of use, frequency of use, and abuse symptoms) during treatment and follow-up than control adolescents who receive Treatment as Usual (TAU). Adolescents receiving RRFT and their caregivers will report improvement in empirically-demonstrated risk and protective factors for substance use and abuse at the individual level (e.g., coping) and at each level of an adolescent's ecology (e.g., increased number of positive family activities, reduced family conflict, reduced number of peers who use drugs, improved school attendance, increased involvement in pro-social community activities) during treatment and follow-up than control adolescents who receive TAU. Adolescents receiving RRFT will experience less PTSD symptoms (per youth and caregiver reports) during treatment and follow-up than control adolescents who receive TAU. Adolescents receiving RRFT will report engaging in fewer risky sexual behaviors (e.g., increased condom use, fewer partners) during treatment and follow-up than control adolescents who receive TAU. Changes during treatment in family relations (familial cohesiveness and conflict, satisfaction with caregiver-youth relationship) and parenting practices (monitoring) will mediate changes in substance use. Changes during treatment in emotional reactivity will mediate changes in PTSD symptoms.
NCT01751035 — PTSD
Status: Completed
http://inclinicaltrials.com/ptsd/NCT01751035/
A Controlled Trial of Topiramate Treatment for Alcohol Dependence in Veterans With PTSD
The goal of this project is to improve the treatment of veterans with co-occurring alcohol dependence and posttraumatic stress disorder (PTSD). The PI and co-investigators will conduct a controlled clinical trial of topiramate for the treatment of these co-occurring disorders.
NCT01749215 — Alcohol Dependence
Status: Completed
http://inclinicaltrials.com/alcohol-dependence/NCT01749215/
The Efficacy of Eye Movement Desensitization and Reprocessing (EMDR) in Patients With Post Traumatic Stress Disorder in Multiple Sclerosis. A Randomized Controlled Trial.
Multiple Sclerosis (MS) can be associated to many psychological symptoms. One of the most relevant is the experience of distress related to the disease, that can lead to the development of Post Traumatic Stress Disorder (PTSD). As far as we know there are no studies on the efficacy of psychological treatments in MS in spite of its relevance for patients' quality of life. Primary aim is to evaluate the efficacy of the treatment with Eyes Movement Desensitization and Reprocessing(EMDR) in PTSD secondary to MS. EMDR is the elective treatment (together with Cognitive Behavioural Therapy) for PTSD according to international guidelines. The secondary aims are to evaluate the efficacy of EMDR on the PTSD-associated symptoms of anxiety and depression and Quality of Life. The study design is a randomized clinical trial. Sixty patients with MS and PTSD will be pre-screened by using the IES-R and the Clinician Administered PTSD Scale. The patients will be randomized in two groups (30 in the experimental group and 30 in the control group).The psychological assessment will be performed in both groups with the same timing and tools: at baseline (T0), after treatment (T1) and 6 months later (T2) by two trained clinical psychologists (independent and blind to treatment) with the CAPS and the administration of self reports: Trauma Antecedent Questionnaire, Chicago Multiscale Depression Inventory, Hospital Anxiety and Depression Scale and Functional Assessment of Multiple Sclerosis. The experimental group will undergo 10 weekly sessions of 60 minutes each with EMDR following Shapiro's protocol for traumatic events. The efficacy will be evaluated comparing the results between T0, T1 and T2 and comparing the scores of the experimental and the control groups. Primary outcome measures will be: 1) the proportion of participants at T1 and T2 no longer meeting the Diagnostic and Statistical Manual (DSM IV-TR) diagnostic criteria for PTSD; 2) the reduction of CAPS scores for the four PTSD dimensions from pre-treatment to post-treatment evaluation and follow-up (avoidance, reexperiencing the traumatic event, hyperarousal and numbing). Secondary outcome measures will be: comparison of the scores of CMDI, HADS and FAMS of the two groups at T0, T1 and T2. The statistical procedure applied will be a repeated measures analysis of covariance both on the primary outcome continuous measures and on the secondary ones.
NCT01743664 — Multiple Sclerosis
Status: Recruiting
http://inclinicaltrials.com/multiple-sclerosis/NCT01743664/
A Randomized Controlled Trial of CBT for Insomnia in Patients With PTSD and Depression
The primary purpose of this study is to test whether and how cognitive-behavioral therapy for insomnia (CBTi), a well-supported and highly effective insomnia treatment, may directly improve Posttraumatic Stress Disorder (PTSD) and Major Depressive Disorder (MDD) symptoms. The study is designed as a randomized controlled trial (RCT) to test the effect of CBTi on symptoms of PTSD and co-morbid depression prior to an evidence-based PTSD intervention and to assess the role of neurobiological processes and sleep architecture in mediating treatment outcomes.
NCT01743339 — Depression
Status: Completed
http://inclinicaltrials.com/depression/NCT01743339/
Novel Therapeutics in PTSD: A Randomized Clinical Trial of Mifepristone
Posttraumatic stress disorder (PTSD) is a common and disabling psychiatric disorder for Veterans. Left untreated or under-treated, it can become a chronic condition associated with significant distress, depression, aggression, family disruption, substance abuse and an increased risk of morbidity and mortality. Considerable advances were made in the treatment of PTSD in recent years; however, psychopharmacological treatments have been shown to be largely ineffective for Veterans with PTSD. To address this gap, this proposal seeks to test an innovative treatment approach in PTSD - pharmacological manipulation of the body's major stress system (the hypothalamic-pituitary-adrenal (HPA) axis) with mifepristone. At high doses mifepristone is a glucocorticoid receptor (GR) antagonist with peripheral and central nervous system effects, making it a compound of interest in the treatment of stress related disorders. There is abundant evidence of enhanced GR sensitivity in Veterans with PTSD which is thought to underlie some of the symptoms of PTSD and associated disturbances in mood and cognition. There is also evidence that short-term mifepristone treatment has sustained beneficial effects on mood, cognition and sleep disturbance in some neuropsychiatric conditions (major depression, bipolar disorder, primary insomnia). The purpose of the study is to examine the effects of mifepristone to determine if it is efficacious in improving PTSD symptoms and associated clinical outcomes. To achieve these objectives, the investigators propose to conduct a Phase IIa, multi-site, double-blind, placebo controlled trial of mifepristone in male Veteran outpatients with chronic PTSD through the VA's Cooperative Clinical Trial Award program. The investigators propose to enroll 90 subjects at multiple VA sites based on an estimated attrition rate of 20%. Eligible Veterans will be randomly assigned to the treatment of mifepristone (600 mg/day) or placebo for one week and followed for up to three months. The investigators will also describe the effects of mifepristone on several other clinical parameters including PTSD symptomology, depression severity, sleep quality, and functional impairment. Several measures of neuroendocrine functioning will also be obtained to explore the relationship of plasma cortisol and adrenocorticotropic hormone (ACTH) levels to clinical response and the time to addition of rescue medications.
NCT01739335 — Stress Disorders, Post-Traumatic
Status: Completed
http://inclinicaltrials.com/stress-disorders-post-traumatic/NCT01739335/
Developing Anesthesia as PTSD Therapy
This preclinical phase 1 development study in healthy volunteers seeks to identify if low doses of commonly used non-triggering anesthetic agents might have clinical utility for modulating emotional memory processing and to understand the nature of the brain mechanisms of drug action. Optimally, a drug, dose and brain mechanism of action will be identified that will form the foundation for future use in clinical studies of patients with PTSD.
NCT01736020 — Healthy
Status: Active, not recruiting
http://inclinicaltrials.com/healthy/NCT01736020/