Developing Memory Reconsolidation Blockers as Novel Posttraumatic Stress Disorder (PTSD) Treatments...
Post-traumatic Stress DisorderDespite substantial therapeutic advances, Posttraumatic Stress Disorder (PTSD) remains difficult to treat. One promising new area of research is in post-reactivation pharmacologic intervention, which is based upon the concept of blockade of memory reconsolidation. Recent animal research suggests that reactivation (retrieval) of a stored memory can return it to a labile (alterable) state from which it must be restabilized in order to persist. This process is called "reconsolidation," and various drugs have been found to block it in animals. This blockade may lead to a weakening of the original memory trace. The aim of this study is to pilot the effect of mifepristone on physiologic responding during traumatic imagery. Although mifepristone is widely and safely used to cause a medical abortion, it is also a powerful stress hormone receptor blocker. These stress hormones, called glucocorticoids, may enhance memory (re)consolidation. Indeed, a recent study in animals reported that mifepristone blocked reconsolidation of context-conditioned fear in rats. Reconsolidation blockade is a two-stage process. First, the memory must be destabilized by recalling it. Second, reconsolidation of the memory must be blocked by a drug. Memory traces formed under stressful conditions may resist destabilization and thus are inaccessible to reconsolidation blockers. However, when a reconsolidation blocker was paired with d-cycloserine (DCS) in animals that had been trained under stressful conditions, reconsolidation blockade became successful. These results suggest that DCS promotes the destabilization of resistant memory traces. The traumatic memories of individuals with PTSD may be particularly resistant to destabilization. Therefore, this study will compare mifepristone paired with DCS to placebo controls. The same script-driven traumatic imagery method validated in previous studies of propranolol in this lab will be used. Briefly, subjects with PTSD will describe their traumatic event during a script preparation session, which will reactivate the memory. They will then receive a) mifepristone and DCS or b) placebo. A week later, they will engage in script-driven mental imagery of their traumatic event while physiologic responses (heart rate, sweating, etc) are measured. This is a pilot study so there are no formal hypotheses. The aim is to estimate effect sizes for mifepristone and to compare them with effect sizes for propranolol from this lab's previous work.
Effects of Treatment of PTSD on Reduced Recall for Fear Extinction
Post-traumatic Stress DisorderThis preliminary study will examine the differential effects of rTMS on the recall of extinction of conditioned fear in patients suffering from PTSD (post-traumatic stress disorder ) compared with subjects without PTSD but with high risk of relapse.
Post-traumatic Stress Disorder (PTSD), Addiction, and Virtual Reality
Substance Use DisordersPosttraumatic Stress DisorderEligible veterans, National Guardsmen & Reservists with post-traumatic stress disorder (PTSD) and problems with addiction will be randomly assigned to one of two treatment conditions. All participants will undergo exposure therapy, a gold standard behavioral treatment for PTSD for 10 weeks. In addition to exposure therapy, some participants will be randomly assigned to receive (1) virtual reality (VR)-based exposure to cues for marijuana, cocaine, heroin, cigarette, and/or alcohol use, and (2) cellular phone-based reminders of learning (extinction reminders, or, ERs) to VR exposure (available 24 hours per day/7 days per week) to high-risk contexts for drug use. The main hypothesis is that those participants who receive exposure therapy + VR/ERs will demonstrate less substance use and lower PTSD symptoms during treatment, at post-treatment, and at follow-up than those participants who only receive exposure therapy. At study completion, a total of 123 subjects signed consent.
Enhancing Extinction Learning in Post Traumatic Stress Disorder (PTSD)
Chronic Posttraumatic Stress DisorderPosttraumatic stress disorder (PTSD) is a condition that involves intense memories of a traumatic event and intense, persistent feelings of anxiety. There are several effective therapies for PTSD, but they are often time consuming. The investigators want to see if the investigators can shorten treatment time while keeping therapy effective by adding a medication called methylene blue, USP, taken orally as a pill, to the therapy. The specific aims are: 1) To see whether medication plus psychotherapy improves PTSD symptoms more than placebo plus psychotherapy or a waitlist; 2) To examine the long-term outcome of those receiving medication plus psychotherapy 1 and 3 months after treatment has ended; 3) To examine whether medication plus psychotherapy helps with depression, trauma-related cognitions, and functioning.
Guitars for Vets: Evaluating Psychological Outcome of a Novel Music Therapy
Post-Traumatic Stress DisorderPost traumatic Stress disorder (PTSD) is a common condition for persons who have served in the Armed services during combat or deployment. Treatments include medications, cognitive behavioral therapy, and other social support mechanisms. Our aim in this project is to critically evaluate the effects of a novel music therapy intervention on the symptoms of PTSD. Estimates developed by the Global Burden of Disease Study reveal that mental illness accounts for over 15% of the burden of disease on health and productivity in established market economies--more than the disease burden caused by all cancers combined.[1] Perhaps no industry has had the burden of mental disorders affect its labor force as severely and pervasively as the Armed Forces. Post-Traumatic Stress Disorder (PTSD) is a common sequelae of severe emotional trauma that is often associated with combat exposure. The condition has been well documented in returning soldiers and is characterized by recurrent and distressing thoughts and feelings related to the trauma, persistent avoidance of reminders of the trauma, and increased arousal that disturbs sleep, concentration, and the ability to modulate anger. Persons suffering from PTSD often have difficulty relating to others, leading to loneliness and isolation, which further intensifies their psychiatric symptoms. Current treatment options for PTSD include psychotherapy, medication management, or a combination of those. Although these treatments have been shown to be effective, returning soldiers are often hesitant to seek and adhere to mental health therapies. PTSD-related avoidance, including difficulty trusting, may serve as a barrier to seeking or completing treatments. Furthermore, some PTSD medications have unacceptable side-effects in some individuals. The need is great, therefore, to identify and promote safe, effective strategies for self-management of PTSD among Veterans.
Cognitive Behavioral Therapy (CBT) for Posttraumatic Stress Disorder (PTSD) in Community Addiction...
Stress DisordersPost-Traumatic1 moreThe purpose of this phase of the study is to assess the efficacy of CBT for PTSD, as delivered by routine addiction counselors in community treatment programs, and to compare CBT for PTSD with both Individual Addiction Counseling (IAC) and Treatment as Usual (TAU) on the primary outcomes.
Dose-Response Study of MDMA-assisted Psychotherapy in People With PTSD
Posttraumatic Stress DisorderPosttraumatic 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.
Contingency Outcomes in Prolonged Exposure
Posttraumatic Stress DisorderSubstance Use DisorderThe aim of this research is to assess whether Contingency Management is effective in improving treatment adherence in substance use disordered (SUD) patients with comorbid PTSD. Although Prolonged Exposure therapy (PE) is the gold standard treatment for PTSD, the few studies of this treatment in substance users have shown poor adherence. Contingency Management is a well-established approach that could be used to enhance adherence to PE. From a consented sample of 125 opioid-dependent and methadone-treated patients at Addiction Treatment Services, an intent-to-treat sample of 62 patients with co-occurring current PTSD will be offered PE. Half of the 62 participants will be randomly assigned to a Prolonged Exposure with Contingency Management (PE+CM) condition that provides monetary-based incentives for attending the PE therapy sessions. The comparison condition will be assigned to a Prolonged Exposure (PE) condition without the attendance incentives intervention. The PE sessions will be scheduled once per week for 12 weeks, with a 12-week follow-up. Groups will be compared primarily on adherence to the PE schedule, improvement in PTSD symptoms, and rates of drug use (urine specimens, self-reported use). The study's three primary aims are to 1) Evaluate the efficacy of adding voucher-based attendance incentives to PE for PTSD to increase adherence in SUD patients in a methadone treatment program; 2) Evaluate the efficacy of adding voucher-based attendance incentives to PE for PTSD to reduce PTSD symptoms in SUD patients; and 3) Evaluate the effect of PE for PTSD on rates of drug use in SUD patients.
Combination Treatment for Posttraumatic Stress Disorder (PTSD) After the World Trade Center (WTC)...
Posttraumatic Stress DisorderThis randomized controlled trial evaluates efficacy of combined prolonged exposure (PE) and the selective serotonin reuptake inhibitor (SSRI) paroxetine in the treatment of survivors of the World Trade Center (WTC) attacks.
Extinction of Fear Memories With Glucocorticoids in Veterans With PTSD
Posttraumatic Stress DisorderThe purpose of this study is to examine the effects of glucocorticoid administration following traumatic memory reactivation on psychiatric symptoms in veterans with combat-related PTSD, in addition to examining the effects of glucocorticoid administration following traumatic memory reactivation on physiological responses to veteran's personal combat memories. The following hypotheses will be tested: Subjects who receive an exogenous glucocorticoid after traumatic memory reactivation will demonstrate fewer PTSD and depression symptoms one week later, compared to those who receive a placebo after traumatic memory reactivation. The glucocorticoid reduction effects will be cumulative; that is, reduction will persist, and further post-reactivation glucocorticoid administration will further reduce symptoms Decreases in PTSD and depression symptoms will persist at 1, 3, and 6 months for subjects receiving an exogenous glucocorticoid compared to those subjects receiving placebo Subjects who receive an exogenous glucocorticoid after traumatic memory reactivation will demonstrate decreased physiological responses one week later, compared to those who receive a placebo after traumatic memory reactivation. As with the psychological measures, suppression of the physiological measures will demonstrate both persistence over time and accumulation with subsequent post-reactivation glucocorticoid administration.