Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 52
- 试验地点
- 1
- 主要终点
- Cardiopulmonary Exercise Test (CPET) - RER
研究概览
简要总结
Background:
Post-Infectious Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (PI-ME/CFS) refers to long-lasting and disabling fatigue or malaise, inability to recover after exercise, and physical and emotional discomfort that may occur after a person has an infection. Researchers want to learn more about its causes.
Objective:
To learn more about PI-ME/CFS.
Eligibility:
Adults ages 18-60 years who have finished at least 7th grade education and either:
have ME/CFS that started after an infection
OR had Lyme disease, were treated, and returned to normal health
OR are healthy volunteers
Design:
Participants will initially have a 2-5 day inpatient visit at the National Institutes of Health Clinical Center in Bethesda. During the visit, participants will have:
Medical history
Physical exam
Intravenous (IV) line. A thin plastic tube is inserted into a vein.
Blood and urine collected
Magnetic resonance imaging (MRI). Participants will lie in a machine that takes pictures of their brain. They may get a dye through their IV.
Grip strength tested
Saliva, cheek swab, and stool collected
Tilt table test with measures of body functions such as sweating and breathing, blood pressure, and heart rate and blood and urine sample collection
Collection of blood cells. Participants can choose to have the blood drawn through the IV or through a machine that filters blood cells and returns the liquid blood back into the participant s vein.
Lumbar puncture. Fluid will be removed by placement of a needle between the back bones.
Heart monitoring
Sleep study for participants with PI ME/CFS
Questions about the participant s life and how they are feeling
Questions from a neuropsychologist
Questions from an occupational therapist for participants with PI ME/CFS
Questinos from a nutritionist
After the initial visit participants will return home. Participants evaluated for PI-ME/CFS during the first visit will have their information reviewed by an adjudication panel of experts in the diagnosis and care of ME/CFS to determine if they are eligible to participate in the second study visit.
Eligible participants will be invited back for a second study visit. If a participant was taking certain medications during the first visit, they may be asked to taper off of them prior to the second visit and report any problems. They will also receive an activity monitor, fatigue diary, and nutrition log to use for at least one week prior to their second visit.
Participants who are eligible will return for a 5-10 day inpatient hospital visit at the National Institutes of Health Clinical Center. During the visit, participants will undergo measurements before and up to 96 hours after performing a stationary bike exercise test. The purpose of the exercise test is to provoke ME/CFS symptoms (post-exertional malaise). Tests will be performed before and after exercise testing. These include:
Sleeping in a room that measures how the body uses energy with EEG monitoring
Eating a controlled diet
Performing vigorous exercise for 10-15 minutes
Questions about how participants are feeling
Questions about what participants usually eat
Samples of saliva, blood, urine and stool
Wearing an activity monitor
Having an Xray that measures body composition
Thinking and memory tests
Heart monitoring
Transcranial magnetic stimulation. A brief electrical current to the scalp creates a magnetic pulse that affects brain activity.
Magnetic resonance imaging (MRI). Participants will lie in a machine that takes pictures of their brain. They will do thinking and exercise tasks during the MRI.
Lumbar puncture. Fluid will be removed by placement of a needle between the back bones.
详细描述
Objective:
The primary objective is to explore the clinical and biological phenotypes of post-infectious myalgic encephalomyelitis/chronic fatigue syndrome (PI-ME/CFS). The secondary objective is to explore the pathophysiology of fatigue and post-exertional malaise (PEM).
Study population:
Up to 206 persons will be enrolled as part of this protocol. Up to 150 persons aged 18-60 will be part of 3 study groups: 50 ME/CFS patients whose fatigue began after an infection, 50 non-fatigued participants with a documented history of a full recovery from COVID-19 infection, and 50 healthy volunteers. The study has a target of completing all study procedures on 20 enrolled participants in each group. Up to an additional 36 persons reporting a community diagnosis of ME/CFS will be enrolled into focus groups to discuss the experience of post-exertional malaise. Up to an additional 10 healthy volunteers and 10 ME/CFS patients may be enrolled to refine the protocol's electrophysiological and neuroimaging techniques.
Design:
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Screening
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •INCLUSION CRITERIA:
- •Inclusion criteria for all participants
- •Adult participants aged 18-60 years at the time of enrollment.
- •Self-reported completion of at least the 7th grade of school.
- •Ability to speak, read, and understand English.
- •Willing and able to complete all study procedures
- •Participant has a primary care physician at the time of enrollment.
- •Able to provide informed consent.
- •Additional inclusion criteria for participants with PI-ME/CFS for the phenotyping visit:
- •A self-reported illness narrative of the development of persistent fatigue and post-exertional malaise as the consequence of an acute infection. The persistent fatigue may have an acute onset or become progressively worse over 6 months.
- •Licensed Independent Practitioner documentation of ME/CFS onset:
- •Medical documentation of absence of symptoms within one year of ME/CFS onset. This may include medical records, letters, or information gathered from telephone calls with study personnel.
- •Documentation of a medical evaluation for symptoms of an acute infection or documentation of a medical evaluation of persistent symptoms within 2 months following an assumed infection.
- •Persistent fatigue and PEM onset less than 5 years prior to enrollment.
- •Additional inclusion criteria for participants with PI-ME/CFS for the exercise stress visit:
- •Be unanimously considered to be a case of PI-ME/CFS by the protocol s adjudication committee.
- •Meet the 1994 Fukuda Criteria or the 2003 Canadian Consensus Criteria for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome or the Institute of Medicine Diagnostic Criteria..
- •Have moderate to severe clinical symptom severity:
- •Severe fatigue as determined using the Multidimensional Fatigue Inventory (MFI): score of greater than or equal to 13 on the general fatigue subscale or greater than or equal to 10 on the reduced activity subscale.
- •Functional impairment as determined using the Short-Form 36 (SF-36): score of less than or equal to 70 physical function subscale, or less than or equal to 50 on role physical subscale, or less than or equal to 75 on social function subscale
- •Additional inclusion criteria for healthy volunteer group:
- •Additional inclusion criteria for COVID-19 Healthy Volunteers: documented prior COVID19 infection as evidenced by:
- •A history of clinical manifestations compatible with COVID-19
- •Laboratory evidence of Covid-19 infection:
- •Detectionof SARS-CoV-2RNA or antigen in nasopharyngeal swab, sputum, other sample source with Emergency Use Authorization/approval from the FDA; OR
- •A positive antibody test using an assay that has received Emergency Use Authorization/approval from the FDA
- •Has been recovered from the COVID-19 infection for at least six months and no more than five years.
排除标准
- •Exclusion criteria for all participants:
- •Current or past psychotic disorder including depression with psychosis, bipolar disorder, and schizophrenia
- •Current DSM-5-defined major depression disorder, generalized anxiety disorder, post-traumatic stress disorder, panic disorder, or obsessive-compulsive disorder unless managed for more than six months with a stable treatment regimen
- •Current or prior substance use disorder as diagnosed on the Structured Clinical Interview for DSM-5 (SCID-5).
- •Current suicidal ideation
- •History of head injury with loss of consciousness or amnesia lasting greater than a few seconds within lasta five years or lasting greater than 5 minutes at any point during their lifetime. Persons with medical record evidence of post-concussive symptoms lasting more than six months are also excluded.
- •Persons with medical record evidence of post-concussive symptoms lasting more than six months are also excluded.
- •Women who are pregnant, actively seeking to become pregnant, or have been pregnant in the year prior to study enrollment.
- •Current or previous malignancy. Certain dermatologic malignancies (e.g. basal cell carcinoma) will be allowed. A history of malignancy that have fully resolved with surgical resection only (i.e. no chemotherapy, radiation therapy, or immunotherapy) will be allowed.
- •Current systemic immunologic disorder (e.g. Type 1 diabetes, rheumatoid arthritis) will be excluded. Allergies requiring anti-histamines may not be an exclusion, but allergies requiring immunosuppressants may be an exclusion.
- •Current or previous long term immune suppressive or immunomodulatory therapy. Systemic steroid use, even short-term, must not have been used within the month prior to enrollment
- •Any medical condition (eg, congestive heart failure, coronary artery disease, chronic obstructive pulmonary disease, severe osteoarthritis, poorly controlled asthma) that would make the study procedures risky for the participant (e.g. exercise-induced angina and asthma) or that may confound the study results (e.g. untreated obstructive sleep apnea, severe osteoarthritis).
- •Participation in a clinical protocol (e.g. anti-inflammatory drug intervention study) which includes an intervention that may affect the results of the current study.
- •Inability to perform the bicycling exercise task.
- •Clinically significant claustrophobia
- •Not willing to allow for research samples to be shared with other researchers.
- •Employees or staff at NIH that are directly supervised by the primary investigator or associate investigators.
- •Additional exclusion criteria for participants with PI-ME/CFS for phenotyping visit:
- •Significant neurological disorder (e.g. neurodegenerative disorder, stroke, epilepsy).
- •PI-ME/CFS disease severity that makes it impossible for the volunteer to leave the home or requires inpatient treatment.
- •Suspected, probable, or confirmed Lyme disease per 2011 CDC Lyme Disease National Surveillance Case Definitions.
- •Underlying illness that may cause fatigue such as thyroid dysfunction, hepatitis, or other systemic diseases.
- •Additional exclusion criteria for participants with PI-ME/CFS for exercise stress visit:
- •Current (within 1 week) use of prescription or over-the-counter medications, herbal supplements, or nutraceuticals that may influence brain excitability that the potential participant is either unwilling or clinically unable to safely wean off for the duration of the period of the exercise stress visit. The possibility for a potential participant to be weaned off medication will be cooperatively determined by both the clinical investigative team and personal physicians. Examples of medications that influence brain excitability include tricyclic antidepressants, hypnotic, antiepileptic, antipsychotic medication, stimulants, antihistamines, muscle relaxants, dopaminergic medications, and sleep medications.
- •Additional exclusion criteria for healthy volunteer group:
- •Substantial daily fatigue as determined using PROMIS-SF Fatigue: score of >
- •Significant neurological disorder (e.g. neurodegenerative disorder, stroke, epilepsy).
- •Current (within 1 week) use of prescription or over-the-counter medications, herbal supplements, or nutraceuticals that may influence brain excitability
- •Additional exclusion criteria for COVID-19 healthy volunteer group:
- •Substantial daily fatigue as determined using PROMIS-SF Fatigue: score of >
- •Significant neurological disorder (e.g. neurodegenerative disorder, stroke, epilepsy).
- •Current (within 1 week) use of prescription or over-the-counter medications, herbal supplements, or nutraceuticals that may influence brain excitability
研究组 & 干预措施
Healthy Volunteer Participants
Healthy volunteer participants
干预措施: Cardiopulmonary Exercise Test (CPET) (Behavioral)
ME/CFS Participants
Participants with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
干预措施: Cardiopulmonary Exercise Test (CPET) (Behavioral)
结局指标
主要结局
Cardiopulmonary Exercise Test (CPET) - RER
时间窗: At time of AT during CPET
The Respiratory Exchange Ratio (VCO2/VO2) was determined during a cardiopulmonary exercise test (CPET). VCO2/VO2 is calculated by measuring the volume of carbon dioxide and oxygen the participant breathes during CPET. When the volume of carbon dioxide exceeds that of oxygen, it reflects a change from aerobic metabolism to anaerobic metabolism. When a participant has a Respiratory Exchange Ratio (RER) during CPET that is equal or greater than 1.1 it is considered a sufficient exercise effort. Results compared Healthy Volunteer Participants to ME/CFS Participants.
Cardiopulmonary Exercise Test (CPET) - ATVO2rel
时间窗: At time of AT during CPET
The Relative Volume of Oxygen at the Anaerobic Threshold (ATVO2rel) was determined during a cardiopulmonary exercise test (CPET). ATVO2rel represents the volume of oxygen being consumed when a participant reaches AT, adjusted for their weight during the CPET. Results compared Healthy Volunteer Participants to ME/CFS Participants.
次要结局
未报告次要终点