A Phase 2 Randomized, Single-blind, Placebo-controlled Study to Evaluate the Safety and Efficacy of the Combination of Famotidine and Celecoxib as a Treatment in Moderate-to-severe Patients Hospitalized for COVID-19
试验速览
- 阶段
- 2 期
- 状态
- 撤回
- 发起方
- 主要终点
- Time-to-event to achieve WHO level ≤3
研究概览
简要总结
This study is designed to test the efficacy and safety of combinations of two well-understood agents - famotidine and celecoxib in patients hospitalized with moderate-to-severe COVID-19 (based on World Health Organization [WHO] Ordinal Scale for Clinical Improvement). Both famotidine and celecoxib separately demonstrate clinical activity in mitigating COVID-19 disease symptoms or severity, and appear to have separate and complementary mechanisms of action.
详细描述
Participants will be randomly assigned, in a 1:1 ratio, to one of two regimens, with 202 subjects per group as follows:
Group 1 (study product) subjects will receive 80 mg famotidine by mouth (PO) 4 times per day (QID) + 400 mg celecoxib as a first dose, followed by 200 mg celecoxib PO, 2 times per day (BID), for 5 days. Following this 5-day period, subjects will continue their famotidine treatment for an additional 9 days.
Group 2 (reference therapy) subjects will receive matching placebos QID and BID, for 5 days. Following this 5-day period, subjects will continue to receive matching famotidine placebo, QID, for an additional 9 days.
Safety, efficacy and pharmacokinetics of famotidine and celecoxib will be evaluated.
All participants will receive the standard of care (SOC), which typically consists of remdesivir, decadron (dexamethasone), lovenox, tociluzimab, and convalescent plasma. At the discretion of the investigator, study treatment can be stopped and dexamethasone initiated in study participants who require supplemental oxygen (WHO 5) as outlined in the NIH COVID-19 Treatment Guidelines. Investigators are required to stop study treatment and initiate dexamethasone, as indicated in participants who require high-flow oxygen (WHO 6), non-invasive ventilation (NIV; WHO 6), invasive mechanical ventilation (WHO 7-8) or extracorporeal membrane oxygenation (ECMO; WHO 9), in accordance with the NIH COVID-19 Treatment Guidelines. The NIH COVID-19 Treatment Guidelines recommend against the use of dexamethasone only in hospitalized patients not requiring supplemental oxygen (WHO 4).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Participant)
盲法说明
Single-blind
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male or female participants must be at least 18 years of age, inclusive, at the time of signing the informed consent form.
- •Confirmed COVID-19 or symptom onset within 7 days of hospitalization, as shown by medical history, physical exam, and laboratory tests (PCR), and who have been hospitalized for COVID-19 at WHO Grade 4-
- •Contraceptive use by men or women should be consistent with Appendix 4 of the Master Protocol (LDOS-21-001).
- •Capable of understanding and providing a signed informed consent form.
- •Reliable access to the internet.
排除标准
- •Participants are excluded from the study if any of the following criteria apply:
- •Pregnant or breastfeeding
- •History of HIV
- •Ongoing treatment that cannot be temporarily discontinued during the study: anti-inflammatory treatment (nonsteroidal anti-inflammatory drugs [NSAIDS]);corticosteroids; antimalarials; antiarrhythmics; tricyclic antidepressants; natalizumab; quinolones; macrolides; and agalsidase alfa and beta
- •drugs dependent on gastric pH for absorption, e.g., dasatinib, delavirdine, mesylate, cefditoren, and fosamprenavir;
- •tizanidine (CYP1A2) substrate;
- •drugs that interfere with hemostasis (e.g., warfarin, aspirin, selective serotonin reuptake inhibitors [SSRIs]/serotonin norepinephrine reuptake inhibitors [SNRIs]);
- •angiotensin converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARB), or beta-blockers;
- •Ongoing famotidine, celecoxib, or other COVID-19 clinical investigational treatment(s) within the past 30 days or current participation in another investigational clinical trial
- •History of immunosuppression
- •History of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs
- •Rejection of participation at the discretion of the Principal Investigator or Sponsor
- •Any contraindication for famotidine or celecoxib treatment:
- •a. Famotidine or celecoxib hypersensitivity; b. Retinopathy, visual field or visual acuity disturbances; c. History of cardiovascular disease, such as congestive heart failure, QT prolongation, bradycardia (<50 bpm), ventricular tachycardia, other arrhythmias, as determined at screening electrocardiogram (ECG) or medical history; d. Potassium <3 mEq/L (milliequivalent/liter) as determined at Visit 1; e. Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) >5 upper normal limit, as determined at Visit 1; f. Previous myocardial infarction; e. Myasthenia gravis; h. Psoriasis or porphyria; i. Glomerular clearance, 60 mL/min; j. Previous history of severe hypoglycemia; k. Known or suspected to be poor CYP2C9 metabolizers based on genotype or previous history or experience with other CYP2C9 substrates, such as warfarin and phenytoin; l. Moderate or severe hepatic impairment, e.g., Child-Pugh Class B or C.
研究组 & 干预措施
Group 1 (Study Product)
Subjects will receive 80 mg famotidine (PO) QID and 400 mg celecoxib as a first dose, followed by 200 mg (PO) BID celecoxib, for 5 days. Following this 5-day period, subjects will continue their famotidine treatment for an additional 9 days.
干预措施: Famotidine (Drug)
Group 1 (Study Product)
Subjects will receive 80 mg famotidine (PO) QID and 400 mg celecoxib as a first dose, followed by 200 mg (PO) BID celecoxib, for 5 days. Following this 5-day period, subjects will continue their famotidine treatment for an additional 9 days.
干预措施: Celecoxib (Drug)
Group 2 (Reference Therapy)
Subjects will receive matching placebos QID and BID, for 5 days. Following this 5-day period, subjects will continue to receive matching famotidine placebo, QID, for an additional 9 days.
干预措施: Placebo (Drug)
结局指标
主要结局
Time-to-event to achieve WHO level ≤3
时间窗: 30 days
Evaluation of the time-to-event to achieve a WHO level score ≤3
Death rate
时间窗: 30 days
Evaluation of the time-to-event where all-cause mortality occurs
次要结局
- Hospital discharge to chronic palliative care(30 days)
- Study discontinuation due to related AEs or SAEs(90 days)
- Hospital discharge with no additional medical care(30 days)
- Related adverse events (AEs) and serious adverse events (SAEs)(90 days)