Fatigue Syndrome, Chronic

The overall goal of this study is to evaluate the effect of a testosterone drug called Depo-Testosterone (or 'testosterone cypionate'), an FDA-approved drug for improving fatigue, sexual function, quality of life, body composition, muscle strength, and physical activity in young cancer survivors who report fatigue and have low testosterone. Main hypothesis is that Testosterone administration in young male cancer survivors who are in remission for at least 1 year, report cancer-related fatigue and have symptomatic testosterone deficiency will be associated with greater improvements in fatigue scores compared with placebo.

This study evaluates the effect of photobiomodulation (PBM) therapy using a MLS® class IV laser on chronic pain and fatigue in patients with hypermobile Ehlers-Danlos Syndrome (hEDS). hEDS is a hereditary connective tissue disorder characterized by joint hypermobility, chronic pain, and debilitating fatigue, for which therapeutic options remain limited. Participants will receive 10 PBM sessions over 5 weeks (2 sessions per week), using red and near-infrared light (808 nm continuous + 905 nm pulsed) applied to painful areas identified at baseline. Pain (Visual Analogue Scale), multidimensional fatigue (MFI-20), and quality of life (EQ-5D-5L) will be assessed at baseline (T0), end of treatment (week 5), and follow-up (week 10). This is a pilot observational study - the first to document the effect of MLS® laser PBM in hEDS. No additional procedures beyond routine care are required.

Myalgic Encephalomyelitis / Chronic Fatigue Syndrome (ME/CFS) is a disease characterized by persistent and unexplained fatigue associated with diffuse pain, sleep disorders, neurocognitive and autonomic symptoms, musculoskeletal manifestations and digestive symptoms. A central feature of this disease is post-exertional symptom exacerbation, also referred to as post-exertional malaise, defined as the worsening or the appearance of symptoms after physical or mental exertion, sometimes even minimal. Several studies have described post-exertional malaise in populations of patients with ME/CFS following a standardized exercise test performed over one or two consecutive days. These studies confirmed the presence of post-exertional malaise in ME/CFS patients compared with healthy controls or patients with multiple sclerosis. However, no data are available evaluating the impact of an exercise test on symptoms in patients referred to cardiology for this examination. Patients with cardiac diseases may also present symptoms such as fatigue, dyspnea or exercise intolerance. This study aims to compare post-exertional symptoms in two populations: patients with ME/CFS and patients with cardiac diseases undergoing an exercise test as part of routine clinical evaluation. The study also aims to measure variations in muscle oxyhemoglobin and deoxyhemoglobin concentrations before, during and after exercise using Near Infrared Spectroscopy (NIRS).

Background: The way the brain processes rewards and punishments may play a role in some disorders of the nervous system. People with chronic overlapping pain conditions (such as myalgic encephalomyelitis/chronic fatigue syndrome \[ME/CFS\]) may have heightened responses to unpleasant, punishing sensations. Some of these conditions may also cause heightened responses to effort; this is an unpleasant sensation felt during physical and mental exertion. Objective: To learn more about how the brain processes different unpleasant sensations. Eligibility: People aged 18 to 50 years with ME/CFS. Healthy volunteers are also needed. Design: Participants will have 3 visits in 1 to 5 weeks. Visit 1: Participants may have a neurologic exam. They will have a mock magnetic resonance imaging (MRI) scan. They will lie on a bed in a wooden tube while they practice 2 tasks: Thermal pain rating: A device that creates mild to moderate heat will be placed on one leg. Physical effort rating: Participants will squeeze a plastic bar with different levels of force. Visit 2: Participants will have a real MRI scan. They will lie on a table that slides into a large tube. Visit 3: Participants will have another MRI scan. They will repeat the thermal pain and physical effort tasks while in the scanner. Sensors will be placed on 1 arm to measure how the muscles function as they squeeze the bar. Their heart rate will be tested: They will hold their finger against a camera lens for 1 minute. They will do 2 other tasks: 1 requires repeatedly pressing a key on a keyboard, and the other requires squeezing a bar.

Over 500 million people have been infected with COVID-19, and to date, more than 6 million people have died. Many individuals who have recovered from COVID-19 continue to experience symptoms even after they have been "cured" of the disease. This condition is known as post COVID-19 condition, which can have serious health consequences. A common symptom among these individuals is chronic fatigue, characterized by persistent tiredness or lack of energy. This study aims to explore a novel treatment for symptoms of post COVID-19 condition, known as hyperbaric oxygen therapy. This approach has shown promise in helping people with post COVID-19 conditions and treating some other causes of fatigue. Hyperbaric oxygen therapy involves placing patients in a small chamber where they receive high oxygen gas levels. However, this treatment is expensive and time-consuming, and it is unclear if this treatment can be effectively assessed in a large-scale research study. This small study will help us decide if conducting a large research study is feasible. The investigators aim to assess if hyperbaric oxygen therapy can improve symptoms of post COVID-19 condition, such as fatigue.

Fatigue is a prevalent symptom in patients with multiple sclerosis (MS) and is associated with considerable impairment in quality of life as well as loss of occupational capacity. Sleep disturbances are regarded as a critical factor in the development of fatigue and are frequently observed in individuals with MS. However, they often remain underrecognized, undiagnosed, and consequently untreated. Polysomnography, the gold standard for assessing sleep architecture and quality, has rarely been applied in the investigation of sleep disorders in MS. Accordingly, uncertainties remain regarding the prevalence and extent to which sleep disturbances contribute to fatigue in this population. Moreover, emerging evidence suggests an association between sleep disorders and cognitive dysfunction in MS. Yet, it is unclear whether cognitive impairment arises from the sleep disorder itself, from the resulting fatigue, or from other independent factors. Pharmacological treatments for MS-related fatigue remain limited, given heterogeneous and frequently non-replicable effects. Non-pharmacological interventions such as physical activity, cognitive behavioral therapy, and psychoeducation have shown promise but yield variable outcomes. The development of novel and effective therapeutic strategies requires a more comprehensive understanding of the etiology of fatigue. To date, the role of sleep disturbances and their relationship to cognitive performance in MS have not been adequately investigated. The objective of this project is to determine the prevalence and characteristics of sleep disorders in MS patients with fatigue using polysomnography and to examine their relationship with cognitive impairment. In addition, the study will compare sleep quality parameters and the prevalence of sleep disorders across different MS subtypes (relapsing-remitting, primary progressive, and secondary progressive). Furthermore, within a sub-study, it will be investigated whether the type of immunotherapy has an influence on the aforementioned aspects. Finally, the project seeks to integrate artificial intelligence (AI) into polysomnography analysis to streamline data evaluation and facilitate the future assessment of therapeutic interventions. The study will be conducted as a non-invasive, non-interventional, longitudinal observational trial including MS patients with fatigue and a control group of patients with subjective sleep complaints but without MS. Recruitment will take place over 36 months at two centers: the Department of Neurology at the University Hospital Düsseldorf and the Maria Hilf Clinics in Mönchengladbach. Additional recruitment will be supported by community-based neurologists in the Mönchengladbach region to broaden the study cohort and ensure representativeness of the study population. Approximately 382 MS patients are expected to be enrolled. The number of control participants will be determined by the proportion of MS patients presenting with sleep disorders and will be recruited consecutively from the neurological sleep laboratory of the Maria Hilf Clinics. For AI training, retrospective polysomnography data from the past five years (N ≥ 10,000 patients) at the Maria Hilf Clinics will be utilized. The study protocol includes overnight polysomnography to assess sleep quality, along with comprehensive clinical evaluation, neuropsychological testing, and validated questionnaires addressing fatigue, subjective sleep quality, daytime sleepiness, depression, and anxiety. Based on manually scored polysomnography, AI models will be trained to identify key parameters of sleep quality. The findings of this study will advance the understanding of the role of sleep disturbances in MS-related fatigue and will facilitate the integration of AI into sleep research, thereby streamlining the evaluation of future therapeutic approaches.

Breast cancer patients who receive endocrine therapy particularly aromatase inhibitors often experience aromatase inhibitors associated symptoms (AIMSS) such as joint and muscle pain along with stiffness and fatigue that can disrupt with daily activities and lead some patients to stop treatment early. A structured intervention program named AIMSS-CARE (Aromatase Inhibitor-associated Musculoskeletal Symptoms-Comprehensive Adapted Rehabilitation Evaluation) developed in China that combines exercise, education, symptom monitoring, and follow-up has been shown to reduce these symptoms and improve treatment adherence. This study will adapt this program for use in Ethiopia while testing its effectiveness to enhance pain management, treatment adherence and quality of life among Ethiopian breast cancer patients receiving endocrine therapy. The study will be conducted at Tikur Anbessa Specialized Hospital in Addis Ababa, Ethiopia. Eighty-eight patients will be randomly assigned to either the adapted intervention program or usual care. The research will also examine the feasibility and acceptability of the intervention to patients and healthcare providers, and what factors influence its successful implementation. Results will help determine whether this program can be used more widely in Ethiopia and other African cancer centers.

The main objective of the MS Boost study is to demonstrate the superiority of MSCopilot Boost over standard practice in reducing the impact of fatigue on Patients with Multiple Sclerosis (MS). The secondary objectives include validating MSCopilot Boost clinical performance in reducing fatigue and its impact as well as evaluating its functional tests performance and its safety of use. The investigation team will also investigate the effects of MSCopilot Boost on patient symptoms, functional parameters and physical activity levels. The investigation team will evaluate patients and healthcare professionals' perceived clinical benefit as well as adherence, satisfaction and user experience related to the mobile application and the web portal. Ultimately, the investigation team will define the medico-economic and organizational impact of the MSCopilot Boost solution. Patients' expected benefits are the access to additional clinical tests not routinely performed, covering dimensions not addressed by standard tests like the EDSS for example; a remote monitoring of functional tests similar to those of the modified MSFC with the possibility of adding an evaluation of fatigue through digital questionnaires; improvement of symptoms related to MS fatigue through access to a personalised tele-rehabilitation program. Healthcare professionals' expected benefits are to track objective measures of key functional symptoms of the disease between consultations, supporting MS patients' management and to gain time by providing a "big picture" of the patient's condition over time.

Research for Pathophysiology of Cancer Related Fatigue (CRF) and Chronic Fatigue Syndrome (CFS/ME) by Lipidomics, Metabolomics, Intestinal and Peritoneal Microbiome Analysis and Exome Analysis and Investigation of a Possible Benefit of Probiotics.

This study evaluates the correlation between the 6-min walking test (6MWT) with gases measurement, and the peak cardiopulmonary exercise testing (CPET) using incremental cycling with gases and workload measurement, in order to determine if the 6MWT detects impairment in exercise tolerance and if it avoids the post-exertional malaise that the peak CPET causes on decreasing levels of physical activity, in participants affected by chronic fatigue syndrome/ myalgic encephalomyelitis (CFS/ME). Physical activity level at baseline (usual activity, the parcipant will not be given any directions) will be recorded during 7 days, 24 hours/day. Afterwards, the 6MWT will be performed. After this test, the physical activity level will be collected again during 7 days, 24 hours/day. Peak CPET will be carried out 14 days after 6MWT to make sure that the basal levels are recovered, and finally, physical activity level will be collected again during 7 days, 24 hours/day.

With this study, the investigators aim to answer the following research questions: 1. In what percentage of cases does the diagnostic process conducted during a fatigue consultation at the internal medicine outpatient clinic contribute to a somatic diagnosis? 2. What are the experiences of patients presenting with fatigue at the internal medicine outpatient clinic when a consultation, including diagnostic testing, does not lead to a diagnosis? To address question (1), the investigators will conduct a retrospective data analysis using information from HiX, an electronic health record (EHR) system. To answer question (2), the investigators will conduct a prospective qualitative study through interviews.

Chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is a distinct disease entity with an estimated prevalence of 0.3-0.7% and more common in women (3:1 ratio). It can be diagnosed according to the Institute of Medicine (IOM) 2015 consensus definition using 3 major criteria and one of 2 minor criteria. Diagnosis requires that the patient have the following three symptoms: 1. A substantial reduction or impairment in the ability to engage in pre-illness levels of occupational, educational, social, or personal activities that persists for more than 6 months and is accompanied by fatigue, which is often profound, is of new or definite onset (not lifelong), is not the result of ongoing excessive exertion, and is not substantially alleviated by rest, 2. Post-exertional malaise,\* and 3. Unrefreshing sleep\* At least one of the two following manifestations is also required: 1. Cognitive impairment\* or 2. Orthostatic intolerance Note\* Frequency and severity of symptoms should be assessed. The diagnosis of ME/CFS should be questioned if patients do not have these symptoms at least half of the time with moderate, substantial, or severe intensity. Currently, individually tailored therapy with emphasis on cognitive behavioral therapy and graduated activity therapy is considered the therapy of first choice, although their effectiveness has been critically questioned in recent years. There are often frustrating treatment courses, a larger proportion of partial remissions, a significantly smaller proportion of full remissions and return to work. The study aims to evaluate patients of the outpatient service for chronic fatigue at the Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Switzerland, in the context of a group therapy for the treatment of CFS/ME in respect to the response to different, non-drug based therapeutic procedures and to gain knowledge about the effects of the therapy. The study is a clinical comparative study of therapeutic procedures/interventions without the use of drugs or a medical product. The interventions are Acceptance Commitment Therapy (ACT) and Micro Breaks in Everyday Life (MBEL) adapted to CFS/ME. The collection of biological samples (saliva, blood) and health-related personal data (actigraphy, psychometric data from questionnaires) is associated with minimal risks and burdens.