12 Clinical Trials for Various Conditions
This is a study of TAK-951 in participants with cyclic vomiting syndrome (CVS). The main aims of this study are as follows: * To check for side effects from treatment with TAK-951. * To learn how much TAK-951 participants can receive without getting side effects from it. * To check how much TAK-951 stays in the blood over time to work out the best dose. * The dose of TAK-951 will be checked to see how much stays in their blood over time. * To see if it is possible to give treatment at home. Participants will be given TAK-951 injected just under the skin (subcutaneous or SC).
Cyclic vomiting syndrome (CVS) is a chronic disorder of gut-brain interaction (DGBI) characterized by episodes of vomiting often triggered by stress. CVS affects 2% of the population and has a disproportionate negative impact on patients and the healthcare system. Although gastrointestinal symptoms are prominent, most patients have comorbid anxiety, depression, high degrees of psychological distress, and other negative cognitive traits that adversely affect health-related quality of life (HRQoL). This is independent of typical measures of severity of CVS and warrants treatment. Recent guidelines recommend a biopsychosocial model of care incorporating techniques like meditation to mitigate stress and improve psychological outcomes in CVS. One potential approach to improve these outcomes is the use of heartfulness (HFN) meditation. Heartfulness meditation is a secular, specific, guided meditation technique that includes progressive relaxation with a concentrated focus on the heart. It is offered virtually and is free-of charge ensuring no barriers to broad application in clinical practice. A pilot study incorporating HFN meditation in CVS significantly reduced psychological distress, perceived stress, and improved coping strategies, sleep quality, and HRQoL. Other data also show that HFN meditation improves overall well-being and reduces perceived stress. However, there are significant gaps in our understanding of the mechanism underlying HFN meditation and its effects on patient outcomes. The endocannabinoid signaling system (ECSS) is activated by stress exposure and functions through multiple neuroendocrine responses to mitigate the negative effects of stress. We examined the role of the ECSS in CVS and found that endocannabinoids were not elevated during an acute CVS episode. This lack of a response in the ECSS during an acute CVS episode, which is characterized by panic, intense nausea and vomiting is striking, given that the ECSS is typically activated by stress exposure. This may reflect an underlying dysfunction of the ECSS in CVS and impaired stress responsivity. Given these data and our preliminary findings of the beneficial effects of HFN meditation, our central hypothesis is that HFN meditation will increase circulating endocannabinoids in CVS and that this will be correlated with a reduction in anxiety and other psychological outcomes and overall quality of life. We propose to test our hypothesis with the following specific aims Specific Aim 1a: Conduct a prospective study to elucidate the acute effects of HFN meditation on the ECSS in CVS. We will measure circulating endocannabinoids and related lipids immediately before and after HFN meditation. 1b: Correlate indices of ECSS with state anxiety and mood pre-and post-HFN meditation. We will measure state anxiety and mood with validated tools including the State Trait Anxiety Inventory (STAI) and Profile of Mood States (POMS) which evaluates tension, depression, anger, vigor, fatigue, and confusion. Hypothesis: HFN meditation will acutely increase circulating endocannabinoids which will be correlated with a reduction in state anxiety and improvement in mood. Specific Aim 2: Determine the long-term effects of a 6-week HFN meditation program on ECSS and correlate with psychological outcomes including psychological distress, STAI scores, sleep quality, and HRQoL. We will measure these outcomes with validated tools including the Brief Symptom Inventory (BSI), STAI, Pittsburgh Sleep Quality Index (PSQI), and PROMIS quality of life questionnaires. Hypothesis: A regular HFN meditation practice over 6 weeks will further augment ECSS, and this will be correlated with an improvement in psychological outcomes such as psychological distress, sleep, mood and HRQoL.
This exploratory study will determine if there are differences in cortical excitability between patients suffering from cyclic vomiting syndrome (CVS) and healthy control subjects, as assessed by a non-invasive method of brain stimulation (Transcranial Magnetic Stimulation, TMS).
We hypothesize that 1) Neurostimulation via a novel auricular percutaneous electrical nerve field stimulation (PENFS) device is a safe, non-invasive opioid-sparing alternative therapy for severe abdominal pain, nausea, and vomiting associated with CVS and will reduce the need for opioids. We also hypothesize that 2) PENFS reduces the length of stay (LOS), and improves patient satisfaction. We propose the following specific aim: Aim 1. Investigate the efficacy of PENFS compared to a sham in patients with CVS seen in the ED or in the clinic or hospitalized with an acute CVS episode. Objectives: 1. Demonstrate reduction in abdominal pain, nausea, and vomiting using validated tools. 2. Obviate or reduce the need for opioids. 3. Reduce the length of hospital stay and improve patient satisfaction. This approach will specifically address the current opioid problem using a novel, non-invasive neurostimulation therapy with proven efficacy for opioid withdrawal. Long-term, it may improve health care outcomes and significantly reduce overall health care costs.
This is a multicenter, randomized, double-blind, parallel group, placebo-controlled, efficacy and safety study of adult outpatients diagnosed with CVS and experiencing recurring episodes of stereotypical vomiting.
This study evaluates the efficacy of auricular neurostimulation via an non-invasive percutaneous electrical nerve field stimulator in children and adults with cyclic vomiting syndrome.
This is a study with the principle goal being to learn about the use of L-Carnitine and CoQ10, two vitamin supplements that are currently being used to treat Cyclic Vomiting Syndrome, largely initiated by parents. We want to learn how effective these supplements are compared to standard treatment, at what dose, and what onset of action in order to initiate future prospective study on these supplements.
The purpose of this study is to determine if there are genetic variations that can explain a genetic basis for cyclic vomiting syndrome (CVS).
The purpose of this study is to assess the effectiveness, tolerability and safety of oral topiramate for the preventative management of Cyclic Vomiting Syndrome. It is believed that topiramate will decrease the frequency, duration and severity of attacks experienced by children and adolescents with Cyclic Vomiting Syndrome.
The purpose of this study is to compare two commonly used agents for the treatment of cyclic vomiting to see if one agent is inferior to the other in time to improvement in symptoms, need for repeat or rescue medications, treatment failures and complications/side effects.
Cyclic vomiting syndrome is a disorder characterized by nausea and vomiting, separated by periods without any symptoms. There is very little research on this field at this point and most doctors do not fully understand the disorder. The goal of this study is to assess how the stomach empties food. Participants will be asked to participate in this study because either (a) they have been diagnosed and/or treated for cyclic vomiting syndrome in the past, or (b) they are physically healthy. The study seeks to compare how a healthy person's stomach empties to how the stomach of someone with cyclic vomiting disorder empties.
Disorders of gut-brain interaction (DGBI) affect up to 25% of U.S. children. Patients often suffer from disabling, multisystem comorbidities that suggest a common root (sleep disturbances, fatigue, anxiety, etc). Yet, DGBI are defined and treated based on GI symptom origin (cyclic vomiting, dyspepsia, irritable bowel) rather than underlying pathophysiology. Many patients manifest comorbidities suggesting an underlying autonomic nervous system (ANS) dysregulation (palpitations, dizziness, cognitive dysfunction). Unfortunately, due to common features of anxiety and visceral hyperreactivity and lack of obvious pathology, children with DGBI are frequently diagnosed with psychosomatic or 'benign, functional disorders' and treated with empiric antidepressants despite lack of scientific support and risks of serious side effects. Little is known about the underlying brain-gut mechanisms linking these comorbidities. A lack of targeted treatment options naturally follows the paucity of mechanistic data. A dysregulated ANS response circuit via brainstem nuclei is linked to visceral hypersensitivity. As the team's prior research has shown, ANS regulation can be non-invasively measured via several validated indices of cardiac vagal tone. Using the novel vagal efficiency (VE) metric, the investigators have demonstrated inefficient vagal regulation in cyclic vomiting syndrome and pain-related DGBI and that low VE predicts response to non-invasive, auricular percutaneous electrical nerve field stimulation (PENFS) therapy. PENFS targets brainstem vagal afferent pathways and, along with brain-gut interventions such as hypnotherapy, are the only therapies currently proven effective for pediatric DGBI. Individualizing neurostimulation based on sensory thresholds while assessing dynamic ANS reactivity offers a path towards personalized medicine using the most effective therapies to date. This proposal will test the feasibility of an ANS tracking software in assessing real-time, autonomic regulation and providing individualized neurostimulation in children with nausea/vomiting and ANS imbalance.