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Anorexia clinical trials at UCSD

12 in progress, 7 open to eligible people

Showing trials for
  • COMP360 Psilocybin Therapy in Anorexia Nervosa: a Proof-of-concept Study

    open to eligible people ages 18 years and up

    Efficacy and Safety of COMP360 Psilocybin therapy in Anorexia Nervosa: a Proof-of-concept Study

    San Diego, California and other locations

  • Ketone Supplementation in Eating Disorders

    open to eligible people ages 18-65

    This study will investigate the effects of ketone supplementation on eating behavior including drive to binge eat or restrict, mood and anxiety in individuals with anorexia or bulimia nervosa. In addition, the investigators will contrast the effects of active ketone supplementation versus placebo on electroencephalogram (EEG) measurement. All subjects enrolled in the study will undergo EEG on two consecutive days at the beginning of the study, after active ketone supplementation or placebo drink, matched in taste to the ketone drink. Days will be randomized. Thereafter, all subjects will take the ketone supplementation drink for two weeks, twice daily.

    San Diego, California

  • Role of CBD in Regulating Meal Time Anxiety in Anorexia Nervosa

    open to eligible females ages 18-40

    No studies of cannabidiol (CBD) have focused on Anorexia Nervosa (AN). Dose, side effects, tolerability, acceptability of pure CBD in AN must be established. The current study is an important first step in the investigation of CBD for AN. Cannabis products have been recently legalized in many states, and CBD in particular has been shown to reduce anxiety. Therefore, CBD may represent a promising new treatment for AN. The endocannabinoid system is involved in the regulation of functions relevant to eating disorders. Furthermore, data suggest that eating disorders are associated with alterations of the endocannabinoid system. Prior attempts to target the endocannabinoid system in AN have focused on CB1 receptor agonists that can increase anxiety. Moreover, CBD may be particularly beneficial in decreasing anxiety in AN via its action at serotonin receptors. Lastly, the impact of CBD on eating behavior and weight in AN must be determined. The current study seeks to explore these hypotheses using the aims in the following section.

    San Diego, California

  • Food Aversion in Patients With Anorexia Nervosa

    open to eligible females ages 18-55

    This study uses a meal-challenge protocol to assess if patients with anorexia nervosa show a differential metabolism in response to food in comparison to healthy controls. This study determines how heritable and biochemical factors influence food metabolism in anorexia nervosa in order to develop more effective treatment strategies.

    La Jolla, California and other locations

  • Therapeutic Ketogenic Diet in Anorexia Nervosa

    open to eligible people ages 18-45

    This study will investigate the effects of therapeutic ketogenic diet (TKD) on eating behavior including drive to restrict, body dissatisfaction, mood and anxiety in individuals with anorexia nervosa who have been weight normalized (body mass index of 17.5 or greater) but continue to struggle with eating disorder behaviors including a high drive for thinness and body dissatisfaction.

    San Diego, California

  • Transcranial Magnetic Stimulation (TMS) in the Treatment of Anorexia Nervosa

    open to eligible females ages 18-45

    Anorexia nervosa is a severe psychiatric disorder associated with food avoidance and body image distortion, that is feeling fat despite being underweight. It is the third most common chronic illness among adolescent females, and its mortality reaches its peak between the ages 16 and 29 years old. There are very few treatments for anorexia nervosa and especially no biological treatments have been approved. Recent brain imaging research has repeatedly implicated brain circuits that include the insula in the disorder. The insula is a brain region important in taste processing as well as in the integration of body perception and has strong connections to the brain reward system. Transcranial magnetic stimulation (TMS) is a relatively new methodology that has been shown to alter neurocircuitry and alleviate depression. Here, the study goal is to develop TMS as a methodology to change altered neurocircuitry in anorexia nervosa and alleviate disorder specific behaviors.

    San Diego, California

  • Incentive Processing and Learning in Anorexia Nervosa and Bulimia Nervosa

    open to eligible females ages 18-39

    The purpose of this study is to investigate areas of the brain responsible for 'liking', 'wanting', and learning in adults with eating disorders using brain imaging techniques, computer tasks, a test meal, and self-report questionnaires and interviews. The investigators will study changes in brain activity using a procedure called functional magnetic resonance imaging (fMRI). This study will include 252 women with an eating disorder (63 AN-restricting type (AN-R), 63 AN-binge eating/purging type (AN-BP), 63 bulimia nervosa (BN)) and 63 healthy controls (HC) aged 18-39. Aim 1: To examine neural differences in 'liking' and 'wanting' in ED relative to HC. Aim 2: To examine differences in instrumental learning for reward and punishment in ED relative to HC. Aim 3: To examine how 'liking' and 'wanting' drive instrumental learning in ED and predict clinical symptoms at baseline and 1 year later. Exploratory Aim: To explore the associations of dopamine function, as measured by neuromelanin MRI (NM-MRI), with ED diagnosis and brain response to 'liking', 'wanting', and learning.

    La Jolla, California

  • Developing an EEG Paradigm to Study Prediction Error in Anorexia Nervosa

    Sorry, in progress, not accepting new patients

    Adolescent anorexia nervosa (AN) is an eating disorder associated with intense fear of weight gain, food refusal, and severe weight loss. AN is the third most common chronic illness among adolescent females with a mortality rate 12 times higher than expected for females 15-24 years old. Little is known about biomarkers in adolescent AN. Neuroimaging studies have repeatedly suggested altered reward processing in AN including in studies using the dopamine associated prediction error (PE) model. The brain PE response is elicited during unexpected receipt or omission of reward stimuli and thought to reflect the functionality of brain dopamine circuits. This is an important research direction as the dopamine system can be manipulated pharmacologically. In ill and recovered adult AN, unexpected or randomly applied sucrose taste stimuli evoked higher insular and striatal responses and unexpected omission or receipt of monetary or taste reward was associated with a similar response pattern in adolescent AN. PE was also inversely related to weight gain in treatment. Thus, PE brain response promises to be an important biological marker for adolescent AN with predictive value for treatment outcome. However, functional brain imaging is costly, prohibitive for instance for individuals with braces or other metal in their body and only available at certain centers. In order to study PE in AN in larger scale studies, a more practical approach and method need to be developed. In this application, we will use the exploratory/developmental R21 mechanism to develop a study protocol using electroencephalography (EEG) to study PE signals in adolescent AN. Recent studies in healthy individuals support that this is a valid approach. Our primary goal for this study is to test the feasibility of the use of EEG for prediction error and reversal learning studies in AN with the longer term goal of replacing fMRI that is costly and associated with frequent participant rule out. In Aim 1. we test the feasibility of adapting a computational taste PE reinforcement learning paradigm from fMRI to EEG in adolescents with AN and healthy controls. We expect that we will find internal consistency of taste PE brain response across fMRI and EEG in adolescents with AN as well as age-matched healthy controls, within each group. We further expect that we will find preliminary evidence that the EEG paradigm will be able to discriminate the AN group from the HC adolescents based on feedback related negativity and higher event-related potential amplitudes, which will correlate with fMRI PE brain response. In Aim 2., we test whether a monetary PE paradigm will show similar EEG brain response as taste PE in Aim 1. to establish the generalizability of EEG taste and non-taste paradigms. The development of an EEG based reward PE study paradigm will enable us in the future to conduct large-scale studies that will be less costly and independent from brain imaging centers that are only available to a small subset of adolescents with AN.

    San Diego, California

  • Dopamine Receptor Contributions to Prediction Error and Reversal Learning in Anorexia Nervosa

    Sorry, in progress, not accepting new patients

    Anorexia nervosa (AN) is an eating disorder associated with intense fear of weight gain, food refusal, and severe weight loss. AN has the highest mortality rate among the psychiatric disorders; however, little is known about biomarkers, and no medication has been approved for AN. Many individuals only partially recover, and treatment options, especially for the psychological components of the illness, are not very effective, highlighting the need for more effective treatments. Brain reward pathways have a direct impact on the drive to eat, and a variety of neuroimaging studies have suggested altered reward processing in AN. The neurotransmitter dopamine has a central role in the reward circuitry to drive food approach, and the dynamic interplay between dopamine receptor response and food restriction could have implications for the pathophysiology of AN. Dopamine-related brain function has been studied indirectly using functional magnetic resonance brain imaging (fMRI) and tasks that deliver reward stimuli unexpectedly, that elicit the so-called prediction error (PE) response. Research in AN showed repeatedly altered PE processing suggesting altered dopamine circuit function in the disorder. Dopamine and PE response have also been associated with altered reversal learning, which has important treatment implication for AN as reversal learning is impaired in the disorder and modulation of the dopamine system could improve treatment.

    San Diego, California

  • Outcomes of a Skill-Based Program for Eating Disorders

    Sorry, accepting new patients by invitation only

    This study aims to measure the effect of a neurobiologically-guided intensive family based treatment for adults with anorexia nervosa.

    San Diego, California and other locations

  • Stress and Neurofeedback in Anorexia Nervosa

    Sorry, in progress, not accepting new patients

    Anorexia nervosa (AN) and atypical AN (AAN) are severe psychiatric illnesses associated with high disease burden including high treatment costs and excessive mortality rates. Primary characteristics of AN and AAN are food restriction, associated fear of weight gain, and a disturbance in how one's body weight or shape is experienced.The underlying neural mechanisms for the core illness behaviors of food restriction and body size overestimation in anorexia nervosa and atypical anorexia nervosa are not well understood. This project will use neurofeedback and advanced psychophysical methods to assess and moderate the neural and behavioral responses to stress and relate those results to the naturalistic environment. The results will guide the development of novel interventions.

    San Diego, California

  • Influence of Reward and Punishment on Goal-directed and Habit Learning in Adolescent Anorexia Nervosa

    Sorry, in progress, not accepting new patients

    The proposed study of adolescents with anorexia nervosa (AN) will examine the association of behavioral differences in constructs of decision making, brain structure and connectivity, and eating disorder (ED) symptoms. This study tests the novel hypothesis that goal-directed and habit learning for reward and punishment is altered in AN and is uniquely associated with divergent symptoms and differences in corticostriatal connectivity and microstructural integrity. We will recruit 78 females currently ill with AN and 26 controls ages 13-17 to investigate how goal-directed and habit learning for reward and punishment correspond to 1) clinical symptoms collected via interviews, self-report assessments, and ecological momentary assessment (EMA), and 2) brain structure and connectivity in the resting state. Data collection will rely on a technology called functional magnetic resonance imaging (fMRI).

    San Diego, California

Our lead scientists for Anorexia research studies include .

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