Long COVID Ultrasound Trial [LOCUS Trial]
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 15
- 试验地点
- 1
- 主要终点
- Within-arm change in the endurance shuttle walk test (ESWT) from baseline to the completion of an up-to 8-week intervention period.
研究概览
简要总结
The research objective is to assess the safety and potential efficacy of spleen ultrasound stimulation as an intervention for Long COVID in a pilot study.
Specific Aims include:
- Measure Long COVID disease activity before, during and after an 8-week course of spleen-directed daily ultrasound stimulation.
- Measure molecular correlates of Long COVID disease activity before, during and after an 8-week course of spleen-directed daily ultrasound stimulation.
- Track adverse events throughout the study to assess safety of the ultrasound intervention.
详细描述
Ultrasound is widely used in human medicine because it is safe, non-invasive, and painless. The same kind of ultrasound that is used for imaging (for example, to visualize babies in utero) may be able to treat inflammatory diseases including Long COVID.
In Long COVID, there can be a state of hyperinflammation that persists in those with symptoms months to years after infection. This hyperinflammatory state includes elevated proinflammatory cytokines such as interferon β (IFN-β), IFN-λ1, IFN-γ, CXCL9, CXCL10, interleukin-6 (IL-6), IL-8, IL-1β , and Tumor Necrosis Factor (TNF-α) in those with Long COVID. Prolonged inflammation in those with Long COVID plays a key role in its pathogenesis and in driving the persistent symptoms.
This study will employ investigational ultrasound devices produced by SecondWave Systems called the MINI ultrasound system.
This is a pilot single-arm intervention study in which up to 15 study participants will receive noninvasive splenic ultrasound therapy over eight weeks (five daily stimulation sessions per week). Participants will be enrolled in the study for a total of 12 weeks starting at Week 0. They will undergo a 4-week Baseline Period during which no intervention is delivered to determine how study outcomes may change over time. Then, after baseline outcomes are measured at Week 4, the investigational ultrasound interventional period will begin. Outcomes will be compared from baseline at Week 4 through the end of the 8-week intervention period at Week 12. Investigational splenic-ultrasound therapy will be delivered with the SecondWave MINI ultrasound system. The objective of the study is to assess the safety and potential efficacy of spleen ultrasound stimulation as an intervention for Long COVID in a pilot study.
For ultrasound stimulation, a small wearable ultrasound device is positioned on the upper left abdomen area over the ribs. Study personnel will use an ultrasound imaging device to locate the spleen and to position the wearable MINI device in a proper location around the ribs area. Daily stimulation consists of an approximately 18-minute period for application of ultrasound to the spleen. Collection of long-COVID outcome data, patient-reported assessments, and blood draws collected at the 6 study visits to assess biomarkers of inflammation will be performed in each participant throughout the study. Stool samples will be collected at 4 timepoints to assess changes in microbiome and metabolomics over the study period. Movement activity and sleep monitoring will be collected throughout the day and correlated with other study outcomes.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Device Feasibility
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age 18-65 years at the time of enrollment
- •Prior diagnosis of COVID-19 by report, PCR, or home kit
- •Symptoms present for 12 or more weeks that are independent prior to SARS-CoV-2 infection including fatigue and one or more of:
- •Myalgia or general aches/pains
- •Dizziness/lightheadedness
- •Cognitive dysfunction (brain fog)
排除标准
- •Candidate who is unable or unwilling to postpone taking new medications used for treating Long COVID during the study period
- •Candidate that is currently taking immune modifying medications and unable to maintain stable levels of their immune medication regimen throughout the study period
- •History of intubation secondary to COVID-19
- •ICU admission for COVID-19
- •Pre-existing Lung conditions such as chronic obstructive pulmonary disease (COPD), interstitial lung disease (ILD), or severe asthma
- •History of coronary artery disease (CAD)
- •History of stroke
- •History of severe anemia of hemoglobin less than 8 g/dl
- •Prior history of Lyme disease
- •Prior history cognitive impairment
- •Any non-marijuana drug abuse history within 30 days
- •Current use of an investigational drug
- •History of prior myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS)
- •History of alcohol abuse: greater than 2 drinks a day for men and 1 drink for females
- •Prior history of postural orthostatic tachycardia syndrome (POTS)
- •Chronic fatigue secondary to any condition other than COVID-
- •Fibromyalgia
- •History of prior chronic pain
- •History of chronic liver disease such as cirrhosis
- •History of splenic pathology such as spleen infarct/splenomegaly
- •History of splenectomy
- •History of Sickle disease with splenic pathology
- •Taking non-approved treatments for Long COVID
- •Participant does not speak English
- •Participant is an active member of the military (service member) or DoD personnel (including civilian employees)
- •Any other clinical reasons deemed by the investigators of the study in which the patient would not be an appropriate candidate for the study
研究组 & 干预措施
Ultrasound Group
干预措施: Splenic Ultrasound (Device)
结局指标
主要结局
Within-arm change in the endurance shuttle walk test (ESWT) from baseline to the completion of an up-to 8-week intervention period.
时间窗: 8 weeks
ESWT is a standardized, externally controlled, constant-paced walking test for the assessment of endurance capacity. Improvement in this outcome will be determined by an increase of distance walked and/or increase in time walked before failure to maintain the controlled walking pace.
次要结局
- Track adverse events throughout the study to assess the safety of the ultrasound intervention.(8 weeks)
- Within-arm change in the Chalder fatigue scale (CFQ-11; Likert score) from baseline to the completion of an up-to 8-week intervention period.(8 weeks)