Novel Pharmacological Targets of Post-Traumatic Stress Disorders

Current Opinion in Psychology, 2017

Posttraumatic stress disorder (PTSD) has been conceptualized as an inability to cope with overwhelming stress that is followed by a distinctive pattern of symptoms. This concept has made it possible to develop therapeutic approaches for PTSD that include medication and psychotherapy options. In this article we summarize research studies on pharmacotherapies for PTSD and review new findings in the neurobiology of PTSD that are promoting the development of targeted treatment options. Research findings that have improved our understanding of psychobiological abnormalities associated with PTSD offer clinicians improved treatment strategies. We review those findings, the developments in the medication management of PTSD and common co-occurring disorders, and new areas of pharmacological research on PTSD treatment.

Journal of Psychiatric Research, 2002

Introduction: Posttraumatic stress disorder (PTSD) is a prevalent psychiatric disorder that is heterogeneous in its nature, and often presents with other psychiatric comorbidities. As a result, empirical research on effective pharmacotherapy for PTSD has produced complex findings. This article reviews the existing research literature on pharmacological treatments for PTSD, identifies the most effective treatments, and where possible examines their mechanism of action with respect to the neurobiology of PTSD. Methods: We examined reports of clinical trials of psychotropic agents carried out with PTSD patients and published in peerreviewed journals, as well as reports from presentations at scientific meetings between 1966 and 2001. Results: Numerous medications are effective in treating PTSD. These include tricyclic antidepressants, monoamine oxidase inhibitors, and serotonin reuptake inhibitors. Considering reported overall efficacy and side effects profiles, selective serotonin reuptake inhibitors emerge as the preferred first line treatment for PTSD. Mood stabilizers, atypical neuroleptics, adrenergic agents, and newer antidepressants also show promise, but require further controlled trials to clarify their place in the pharmacopoeia for PTSD. Discussion: There is clear evidence for effective pharmacotherapy of PTSD. Future improvements in the treatment of this disorder await further clinical trials and neurobiological research. Published by Elsevier Science Ltd.

2019

Advances in Psychiatric Treatment, 2007

Post-traumatic stress disorder (PTSD) causes significant distress and is often associated with markedly reduced functioning. Recent reviews have consistently recommended trauma-focused psychological therapies as a first-line treatment for PTSD. Pharmacological treatments have also been recommended but not as consistently. This article reviews the available trials of the pharmacological treatment of PTSD and discusses their implications.

Psychiatric Annals, 2009

Posttraumatic stress disorder (PTSD) is a common psychiatric disorder in populations exposed to trauma, and it is among the most functionally-impairing, similar in scope to that observed in mood disorders. Recent years have seen many treatment studies assessing efficacy of diverse pharmacotherapies for PTSD. This article reviews the established, evidence-based pharmacotherapeutic treatments for PTSD and highlights current recommendations and controversial areas. The article primarily focuses on published randomized clinical trials that tested overall symptom reduction in PTSD compared to placebo. We also briefly review efforts to target particular symptoms commonly associated with PTSD (eg, sleep disturbance; psychotic symptoms) and at preventing PTSD among populations recently exposed to trauma. Where appropriate, recommendations are made for use of particular agents as first-line pharmacotherapies.

Expert Opinion on Emerging Drugs, 2009

Posttraumatic stress disorder (PTSD) can result from a traumatic experience that elicits emotions of fear, helpless or horror. Most individuals remain asymptomatic or symptoms quickly resolve, but in a minority intrusive imagery and nightmares, emotional numbing and avoidance, and hyperarousal persist for decades. PTSD is associated with psychiatric and medical co-morbidities, increased risk for suicide, and with poor social and occupational functioning. Psychotherapy and pharmacotherapy are common treatments. Whereas, research supports the efficacy of the cognitive behavioral psychotherapies, there is insufficient evidence to unequivocally support the efficacy of any specific pharmacotherapy. Proven effective pharmacologic agents are sorely needed to treat core and targeted PTSD symptoms, and for prevention. This review describes current and emerging pharmacotherapies that advance these goals.

The Psychiatric quarterly, 2002

Advances in psychopharmacology of PTSD are presented, focusing on antidepressants, adrenergic agents, antianxiety agents, and mood stabilizers. Treatment recommendations are related to recent advances in the understanding of the biology of PTSD. Pharmacotherapy of PTSD in children and adolescents is discussed, including recommended dose ranges. Recommendations are specified for pharmacotherapy of trauma survivors in the immediate aftermath of traumatic exposure, and for those with acute and chronic posttraumatic stress disorders.

European Journal of Pharmacology, 2014

The development of new pharmacological therapies starts with target discovery. Finding new therapeutic targets for anxiety disorders is a difficult process. Most of the currently described drugs for post-traumatic stress disorder (PTSD) are based on the inhibition of serotonin reuptake. The mechanism of action of selective serotonin reuptake inhibitors was already described in 1977 . Now, almost 40 years later, we still rely on the same mechanism of action and more effective pharmacological therapies, based on other working mechanisms, are not on the market yet. Finding new molecular switches that upon modulation cure or alleviate the disorder is hampered by a lack of valid animal models. Many of the characteristics of psychiatric disorders are typically human and hence animal models feature only part of the underlying pathology. In this review we define a set of criteria for animal models of PTSD. First, we describe the symptomatology and pathology of PTSD and the current pharmacological and non-pharmacological treatment options. Next, we compare three often-used animal models and analyze how these models comply with the set of criteria. Finally, we discuss how resolving the underlying mechanisms of effective non-pharmacological treatments (environmental enrichment, re-exposure) may aid therapeutic target discovery.

Journal of Nepal Medical Association

Post-Traumatic Stress Disorder affects a significant proportion of those who have been exposed to exceptionally threatening or catastrophic events or situations such as earthquakes, rape and civil war. The condition can often become chronic and disabling. Medical intervention can therefore be of paramount importance. There are no national guidelines for trauma disorders in Nepal and there is a lack of adequate knowledge regarding drug treatment of PTSD among doctors and other service providers. Though psychotherapy is internationally regarded as the first line treatment for PTSD, it is often not feasible in Nepal due to lack of resources and skilled health workers in this field. The use of right psycho-pharmacotherapy is therefore important to reduce the burden of disease. A wide range of pharmacotherapy has been tested in the treatment of PTSD. This article is based on a selected sample of relevant articles from PubMed, PsycINFO, national guidelines from other countries and our own...