A Randomized, Double-Blind, Placebo-Controlled, Multicenter, Phase IIa/IIb Study to Evaluate the Safety, Tolerability, and Efficacy of NP-101 in Treating High-Risk Participants Who Have Tested Positive for Novel Coronavirus 2019.
试验速览
- 阶段
- 2 期
- 状态
- 终止
- 发起方
- 入组人数
- 170
- 试验地点
- 4
- 主要终点
- Safety and Tolerability of NP-101 vs Placebo (Phase IIa and IIb)
研究概览
简要总结
The goal of this clinical trial is to evaluate the safety, tolerability, and efficacy of NP-101 in treating high-risk participants who have tested positive for Covid-19. The main question[s] it aims to answer are:
- To evaluate the safety of NP-101, as well as establish the maximum tolerated dose in high risk Covid-19 positive patients.
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详细描述
This is a Phase IIa/IIb multicenter, interventional, randomized, double-blind, placebo-controlled study designed to evaluate the safety, tolerability, and efficacy of NP-101 in outpatient high-risk COVID-19 positive participants. Blinding roles: Participants, Investigators and Sponsor
The study is comprised of two parts (Phase IIa and Phase IIb) and four cohorts. The first part of the trial (IIa) involves three cohorts and is a dose escalation study designed to select the maximum tolerated dose for use in the second part (IIb) of the study. In the dose escalation (Phase IIa) portion of the trial (n= 60), qualified participants will be enrolled in a parallel dose escalation design and randomized in a 3:1 [active+best supportive care (BSC):placebo+BSC]ratio to one of three cohorts of 20 participants each (15 active +BSC, 5 placebo + BSC). Cohort 1 (15 participants taking 600 mg capsules for a total daily dose of 3 grams of NP-101 plus BSC and 5 participants taking placebo plus BSC), and Cohort 2 (15 participants taking 600 mg capsules for a total daily dose of 4.8 g of NP-101+ BSC and 5 participants taking placebo plus BSC will run concurrently since acceptable safety data for the 3 g dose was obtained in an earlier phase II study.
Cohort 1 will receive either 3 g Total Daily Dose (TDD) of NP-101 + BSC or Placebo+ BSC, Cohort 2 will receive either 4.8 g TDD of NP-101 +BSC or placebo + BSC) and Cohort 3 (15 participants taking 600 mg capsules for a total daily dose of 6 g of NP-101 + BSC and 5 participants taking placebo plus BSC.) Safety will be evaluated according to the terms of the Statistical Analysis Plan (SAP). In the second portion of the trial (Phase IIb), Participants enrolled in Cohort 4 (n= 248) will be randomized in a ratio of 1:1 (active+BSC : placebo+BSC) and will receive the Maximum Tolerated Daily Dose (MTDD) as determined by the parameters set by the SAP and approved by the pharmacovigilance team.
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
- Double (Participant, Investigator)
盲法说明
Participant, Investigator will all be blinded.
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
- •Provision of signed and dated informed consent form
- •A resting SpO2 of >93% on room air.
- •Stated willingness to comply with all study procedures and availability for the duration of the study
- •Male or female, aged 18 and over, presenting with mild to moderate clinical symptoms of Covid- 19 infection (per FDA guidance - see appendix 3) with symptom onset within 5 days prior to the day of randomization
- •Positive COVID-19 infection confirmed by RT-PCR within the last 5 days of the day of randomization
- •A score of ≥ 2 (moderate) on a minimum of 1 symptom on the PRO Symptom Survey on the day of randomization
- •Ability to take oral medication and be willing to adhere to the dosing regimen (Twice a day - BID for 14 days)
- •For females of reproductive potential: negative pregnancy test at screening and use of highly effective contraception method during study participation and for an additional 4 weeks after the end of study drug administration
- •For males of reproductive potential: use of condoms or other methods to ensure effective contraception with partner during study participation and for an additional 4 weeks after the end of study drug administration
- •Agreement to adhere to Lifestyle Considerations (see section 5.3) throughout study duration
- •To be considered high risk, participants should have at least one of the following conditions:
- •age ≥60 years;
- •active cancer
- •chronic kidney disease;
- •chronic lung disease including COPD
- •Obesity (BMI ≥30)
- •serious heart conditions [heart failure, coronary artery disease, or cardiomyopathies];
- •Diabetes (type 1 or type 2)
- •Immunocompromised state (weakened immune system or autoimmune diseases)
- •Chronic liver disease
- •Cystic fibrosis
- •HIV infection
- •Smoking, current or former
- •Sickle cell disease or thalassemia
- •Solid organ or blood stem cell transplant
- •Stroke or cerebrovascular disease
排除标准
- •Current or recent (within 4 weeks) treatment with any corticosteroids; however, inhaled steroids, which are used to treat acute or chronic bronchial inflammation, will be permitted
- •Severe Covid-19 symptoms (severe per FDA classification - see appendix 3)
- •Requires immediate admission to hospital for any reason
- •Pregnancy or lactation
- •Known allergic reactions to components of black seed oil or thymoquinone
- •Treatment with another investigational drug or other investigational intervention within 2 weeks of study start and throughout study duration.
- •Significant hepatic disease (ALT/AST> 4 times the ULN); any laboratory parameter >/= 4 times the ULN or platelet count <100,000/µ L or neutrophilic granulocyte absolute count
- •o <500/mm3
- •History of moderate to severe CKD, (i.e. on hemodialysis or has an estimated glomerular filtration rate less than 45mL/min) at the time of enrollment
- •Participants with inflammatory bowel disease (such as Crohn's) that could affect the intestinal absorption of NP-101 enteric coated capsules.
- •Known uncontrolled HIV (with a recent viral load > 50 copies/mL or CD4<200 cells/mm3 or known active uncontrolled Hepatitis B (defined as HBsAg-positive or detectable HBV DNA viral load) or known active Hepatitis C (defined as detectable HCV RNA viral load) infection
- •Influenza diagnosis (confirmed by testing) during screening or within prior 14 days
- •Any uncontrolled condition(s) or diagnosis, both physical or psychological, or physical exam finding that precludes participation, as per investigator
- •Current treatment with CYP2C9 substrates (see Appendix 5)
研究组 & 干预措施
Placebo
As above, except dosed with matching placebo capsules.
干预措施: Placebo (Other)
Active Drug Treatment
Phase IIa - Dose escalation. 3g cohort and 4.8g cohort run simultaneously, followed by a 6 g cohort. Administered in 600 g capsules of NP-101 for a total daily dose of 3g, 4.8g and 6g adminstered BID. Administered for 14 days.Establish MTDD Phase IIB - Continue study with MTDD as established above.
干预措施: NP-101 (Drug)
结局指标
主要结局
Safety and Tolerability of NP-101 vs Placebo (Phase IIa and IIb)
时间窗: Through Day 45
Evaluation of the number of overall adverse events, related adverse reactions, adverse events leading to discontinuation of study drug, hospitalization, or death.
Time to Sustained Clinical Recovery
时间窗: Through Day 5
This outcome measure ONLY APPLIES TO the Phase-IIb (efficacy) component of the trial per protocol. Therefore, the six arms of the Phase-IIa (dose-finding phase, three dose levels of NP-101 and placebo investigated) were not part of this data entry. This outcome measure is defined as the difference of Sustained Clinical Recovery (SCR) rates on Day 5 in patients taking the MTDD of NP-101 vs Placebo.
Establishment of MTDD
时间窗: Fourteen days per dose (Phase IIA Only)
Number of DLTS (Dose Limiting Toxicities) in the NP-101 arm at each dose compared to placebo and the safety threshold. This outcome measure ONLY APPLIES TO the Phase-IIa (Dose-finding) component of the trial.
次要结局
- Difference of Change in Log2 of Viral Load From Baseline to Day-7 Between NP-101 and Placebo(Enrollment to Day-7 on study)
- Difference of Change in ORF1 Gene From Baseline to Day-7 Between NP-101 and Placebo(Enrollment to Day-7)
- Difference in Change of E-Gene From Baseline to Day-7 Between N101 and Placebo(From Enrollment to Day-7)
- Differenc in Change of N-Gene From Baseline to Day-7 Between NP-101 and Placebo(From enrollment to Day-7)
- RT-PCR Negative/Undetectable Rate at Day 7(Days 0 to 7)
- RT-PCR Negative/Undetectable on Day-14(Day 0 to Day-14)
- Median Time to Sustained Clinical Recovery(From Day-0 to Day-28)
- Median Day to Complete Clinical Recovery(From Day-0 to Day-28)
- Median Days to Complete Clinical Resolution(From Day-0 to Day-28)
- Difference of the Change From Randomization to Day-7 of Absolute Counts of CD4+ and CD8+ Markers Between NP-101 and Placebo Arms.(From Day-0 to Day-7)
- Difference of the Change From Randomization to Day-7 ın the Ratio of the Absolute Counts of CD4+ and CD8+ Markers Between NP-101 and Placebo Arms.(From Day-0 to Day-7)
- Difference of the Change From Randomization to Day-7 of Percentages of CD4+ and CD8+ Markers Between NP-101 and Placebo Arms.(From Day-0 to Day-7 Cell Percentages)
- Difference of the Change From Randomization to Day-14 of Absolute Counts of CD4+ and CD8+ Markers Between NP-101 and Placebo Arms.(From Day*0 to Day-14)
- Difference of the Change From Randomization to Day-14 ın the Ratio of the Absolute Counts of CD4+ and CD8+ Markers Between NP-101 and Placebo Arms.(From Day-0 to Day-14)
- Difference of the Change From Randomization to Day-14 of Percentages of CD4+ and CD8+ Markers Between NP-101 and Placebo Arms.(From Day-0 to Day-14)
- Proportion of Participants With Symptom Progression(From Day-0 to Day28)
- Proportion of Paticipants With Long-Covid Symptoms(Day-29 to Day-45)