COVID-OUT: Early Outpatient Treatment for SARS-CoV-2 Infection (COVID-19)
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 1,323
- 试验地点
- 14
- 主要终点
- Count of Participants Who Died
研究概览
简要总结
- The purpose of this trial is to conduct a 2x3 factorial randomized trials, which efficiently allows the parallel conduct of three randomized trials to understand whether metformin, ivermectin, or fluvoxamine, is superior to placebo for preventing Covid-19 disease progression in non-hospitalized adults with SARS- CoV-2 infection.
- To understand if the active treatment arms are superior to placebo in improving viral load, serologic markers associated with Covid-19, and gut microbiome in non-hospitalized adults with SARS-CoV-2 infection.
- To understand if any of the active treatment arms prevent long-covid syndrome, PASC (post-acute sequelae of SARS-CoV-2 infection).
详细描述
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a rapidly spreading viral infection causing COVID-19 disease. There currently is no definitive preventive or early outpatient treatment therapy for Covid-19. Study study assess 3 existing generic medications: metformin, fluvoxamine, and ivermectin.
Metformin: in-silico, in-vitro, ex-vivo tissue assays suggest that metformin inhibits viral replication of SARS-CoV-2 virus (Castle et al; Gordon et al; and Schaller et al). Several retrospective cohort analyses have suggested an association between taking metformin prior to SARS-CoV-2 infection and less severe outcomes. Kow, J Med Virol conducted a meta analysis, with an overall odds ratio for mortality of 0.62 (0.43-0.89). Gordon et al found decreased SARS-CoV-2 and increased cell viability with metformin in vitro. (Gordon et al, Nature). While anti-viral activity may be contributing to the observational associations of reduced severity of Covid-19, metformin has a proven history of beneficial immune-modulatory effects, including on CRP, IL-6 and TNF-alpha, neutrophil extracellular traps, and improved T cell immunity. Outpatient metformin use has now been associated with lower IL-6, CRP, and neutrophil-lymphocyte ratio in persons with Covid-19 (Lou et al, Diabetes Care 2020).
Fluvoxamine: appears to have anti-inflammatory effects in SARS-CoV-2 infection. There is evidence that SARS-CoV-2 infection causes ER stress and activates pathways of unfolded protein response. Sigma-1 receptor (S1R) is an ER chaperone protein that regulates cytokine production through interaction with IRE1. Fluvoxamine is a selective serotonin reuptake inhibitor that is a powerful S1R agonist. Fluvoxamine has previously been shown to protect mice from septic shock and reduce the inflammatory response. There is potential for fluvoxamine as an immunomodulatory treatment for SARS-Cov-2. Fluvoxamine in CACO2 cells infected with SARS-Cov-2 had a reduction in production of a subset of cytokines including IL-6, IL-8, CXCL1, and CXCL10.53 A randomized controlled clinical trial of 152 patients showed that patients who received fluvoxamine were less likely to experience clinical deterioration, or serious adverse events due to SARS-Cov-2 when compared to placebo (0% vs. 8%). A follow-up real-world observational cohort had similar findings of 0% (0/65) hospitalization with fluvoxamine vs. 12% (6/48) with observation.
Ivermectin has also shown anti-inflammatory effects that would reduce the harmful cytokine cascade noted in severe Covid-19 disease. A recent trial assessing a multi-therapy including 12mg one-time dose of ivermectin found a 75% reduction in hospitalizations. Another small double-blinded RCT showed significant increased chance of viral clearance after a 5-day course of ivermectin. Another March 2021 RCT reported no effect on diminishing symptoms, but was under-powered for assessing reductions in hospitalization. An RCT with ivermectin must be done in the US, as endemic strongyloidiasis in other countries may confound results.
Statistical Considerations:
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
盲法说明
Only the investigational pharmacy and unblinded statistician have access to patient treatment allocation. All participants receive two types of pills to maintain masking.
入排标准
- 年龄范围
- 30 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Positive laboratory test for active SARS-CoV-2 viral infection based on local laboratory standard (i.e. +PCR) within 3 days of randomization.
- •No known history of confirmed SARS-CoV-2 infection
- •BMI >= 25kg/m2 by self-report height/weight or >= 23kg/m2 in patients who self-identify in South Asian or Latinx background.
- •Willing and able to comply with study procedures (i.e. swallow pills)
- •Has an address and electronic device for communication
- •GFR>45ml/min within 2 weeks for patients >75 years old, or with history of heart, kidney, or liver failure.
排除标准
- •Hospitalized, for COVID-19 or other reasons.
- •Symptom onset greater than 7 days before randomization (symptoms not required for inclusion).
- •Immune compromised state (solid organ transplant, bone marrow transplant, AIDS, on high dose steroids)
- •Hepatic impairment (Child-Pugh B and C) or other condition that, in the opinion of the investigator, would affect safety
- •Inability to obtain informed consent
- •Enrollment in another blinded Randomized Controlled Trial for COVID-19
- •Already received an effective (FDA approved/EUA*) therapy for COVID-19 (currently monoclonal antibody treatment)
- •Alcohol use disorder
- •Other unstable medical condition or combination of home medications that in the view of the PI make it unsafe for the individual to participate
- •History of severe kidney disease i.e.:
- •Stage 4 or 5 CKD, or Estimated Glomerular Filtration Rate (eGFR) of < 45ml/min/1.73 m2
- •Other kidney disease that in the opinion of the investigator would affect clearance
- •Unstable heart failure (Stage 3 or 4 heart failure)
- •Allergic reaction to metformin, fluvoxamine, or ivermectin in the past
- •Bipolar disease: individuals who report they have bipolar disorder or are taking medication for bipolar disorder (lithium, valproate, high-dose antipsychotic), unless the investigator concludes that the risk for mania is unlikely
- •Current loa loa or onchocerciasis infection
- •Typhoid, BCG, or cholera vaccination within the 14-days or 3 days after
- •Medication Exclusions:
- •Cimetidine, hydroxychloroquine, insulin, sulfonylurea, dolutegravir, patiromer, ranolazine, tafenoquine.
- •Rasagiline, selegiline, or monoamine oxidase inhibitors, linezolid, methadone
- •Duloxetine, methylene blue
- •Tizanidine, ramelteon, sodium picosulfate
- •Alosetron, agomelatine, bromopride, dapoxetine, tamsimelteon, thioridazine, urokinase, pimozide
- •The following medications may not need to be excluded when dose for that individual is considered alongside the low dose of fluvoxamine being used and other medications being used. The PI or site PI may review and decide if the patient should be excluded from the fluvoxamine arms:
- •Taking SSRIs, SNRIs, or tricyclic antidepressants, unless these are at a low dose such that a study investigator concludes that a clinically significant interaction with fluvoxamine (ie either serotonin syndrome or TCA overdose) is unlikely (examples: participant takes escitalopram but only at 10mg daily; that dose plus 100mg fluvoxamine would be insufficient to cause serotonin syndrome; or, participant takes amitriptyline but only at 25mg nightly; even if fluvoxamine inhibits its metabolism, it would be an insufficient dose to cause QTc prolongation or problematic side effects). Risk Class C, monitor therapy.
- •Individuals who take alprazolam or diazepam and are unwilling to cut the medication by 20% (rationale: fluvoxamine modestly inhibits the metabolism of these drugs). Risk Class C, monitor therapy
- •Participants taking theophylline, clozapine, or olanzapine (drugs with a narrow therapeutic index that are primarily metabolized by CYP 1A2, which is inhibited by fluvoxamine) will be reviewed with a study investigator and excluded unless the investigator concludes that the risk to the participant is low (this would be unlikely; example: participant takes clozapine only as needed and is willing to avoid it for the 14 days of the study).
- •Patients will be advised that there is a small risk that the following substances will be affected by fluvoxamine, but that significant effects are not likely at the low dose being used: caffeine, nicotine, melatonin. Risk Class C, monitor therapy
- •Taking warfarin-also known as Coumadin, NSAIDs, and Aspirin (rationale: increased risk of bleeding), phenytoin (rationale: fluvoxamine inhibits its metabolism), clopidogrel (rationale: fluvoxamine inhibits its metabolism from pro-drug to active drug which raises risk of cardiovascular events), and St John's wort (rationale: fluvoxamine + St John's wort are considered contraindicated because of the risk of serotonin syndrome) Risk C, monitor therapy.
- •Additional COVID-19 treatments to exclude will be decided by a panel of at least 3 Co-Investigators on this study. The additional treatments to exclude will be documented and submitted to the IRB but may be implemented before formal IRB approval is complete. We take this approach because of the rapidly changing treatment landscape of COVID-
- •Participation in the study does not prevent them from receiving such treatments after enrollment.
研究组 & 干预措施
Ivermectin + Metformin Placebo
This is the randomization group that received active ivermectin + metformin placebo.
干预措施: Placebo (Drug)
Metformin + Placebo
This is the randomization group that received active metformin + either fluvoxamine placebo or ivermectin placebo.
干预措施: Metformin (Drug)
Metformin + Placebo
This is the randomization group that received active metformin + either fluvoxamine placebo or ivermectin placebo.
干预措施: Placebo (Drug)
Placebo
This is the randomization group that received metformin placebo + either fluvoxamine placebo or ivermectin placebo.
干预措施: Placebo (Drug)
Ivermectin + Metformin Placebo
This is the randomization group that received active ivermectin + metformin placebo.
干预措施: Ivermectin (Drug)
Fluvoxamine + Metformin Placebo
This is the randomization group that received active fluvoxamine + metformin placebo.
干预措施: Placebo (Drug)
Fluvoxamine + Metformin Placebo
This is the randomization group that received active fluvoxamine + metformin placebo.
干预措施: Fluvoxamine (Drug)
Metformin + Fluvoxamine
This is the randomization group that received active metformin + active fluvoxamine.
干预措施: Metformin (Drug)
Metformin + Fluvoxamine
This is the randomization group that received active metformin + active fluvoxamine.
干预措施: Fluvoxamine (Drug)
Metformin + Ivermectin
This is the randomization group that received active metformin + active ivermectin.
干预措施: Metformin (Drug)
Metformin + Ivermectin
This is the randomization group that received active metformin + active ivermectin.
干预措施: Ivermectin (Drug)
结局指标
主要结局
Count of Participants Who Died
时间窗: 14 days
Count of Participants With Hospitalization or Death
时间窗: 14 days
Count of Participants With Hypoxia Only
时间窗: 14 days
Count of Participants With ED Visit, Hospitalization or Death
时间窗: 14 days
Clinical Progression to Severe Covid
时间窗: 14 Days
Clinical progression, defined as Emergency department visit for any COVID-19 related symptom (including hospitalization or death) or decrease in O2 saturation (\<=93% on room air, or need for supplemental oxygen to maintain an O2 saturation \<=93%)
次要结局
- Clinical Progression to Severe Covid(14 days)
- Progression(28 days)
- Maximum Symptom Severity(14 days)
- Clinical Deterioration: Hospital and Vent >3days(28 days)
- Laboratory Outcome Study(Day5-Day10)
- All-cause Study Medicine Discontinuation(14 days)
- Long Covid(Day 300)