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Evaluate the Efficacy and Safety of FB2001 in Hospitalized Patients With Moderate to Severe COVID-19 (BRIGHT Study)

Phase 2
Recruiting
Conditions
COVID-19
Interventions
Drug: FB2001 placebo
Registration Number
NCT05445934
Lead Sponsor
Frontier Biotechnologies Inc.
Brief Summary

This study is a double-blind, randomized, placebo-controlled study to evaluate the efficacy and safety of FB2001 in hospitalized patients with moderate to severe Coronavirus Disease 2019 (COVID-19). A total of about 1188 subjects are planned to be enrolled. The subjects will be randomized in a 1:1 ratio to FB2001 group or placebo group while both receiving standard of care treatment.

Detailed Description

Coronavirus Disease 2019 (COVID-19) is a respiratory illness that can spread from person to person. The infectious agent that causes COVID 19 is a novel coronavirus, named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was first identified during a recent outbreak in December 2019. Patients with COVID-19 have symptoms of fever, cough, and shortness of breath along with non-specific symptoms including myalgia and fatigue.

FB2001 is a small-molecule inhibitor of coronavirus 3CL protease (3CLpro). In two phase I clinical trials, we completed doses of FB2001 that were safe, and were projected to be effective in patients according to its pharmacokinetic profile.

This study is a double-blind, randomized, placebo-controlled study to evaluate the efficacy and safety of FB2001 in hospitalized patients with moderate to severe Coronavirus Disease 2019 (COVID 19). A total of about 1188 subjects are planned to be enrolled. The subjects will be randomized in a 1:1 ratio to FB2001 group or placebo group while both receiving standard of care treatment.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
1188
Inclusion Criteria
  1. ≥18 years old, male or female.
  2. Subjects hospitalized with moderate to severe COVID-19 with a category 4 or 5 on an 8-category ordinal scale.
  3. Has laboratory-confirmed COVID-19 infection within 5 days prior to randomization.
  4. Initial COVID-19 symptom onset within 5 days prior to randomization and ≥1 sign/symptom attributable to COVID-19 within 24 hours before randomization.
  5. The underlying medical condition was well controlled prior to SARS CoV 2 infection and does not affect daily life.
  6. Subject who did not receive COVID 19 (primary series or booster) vaccine within the 6 months prior to screening.
  7. The subject is willing to provide written informed consent to participate in the study after reading the informed consent form and the information provided and has had the opportunity to discuss the study with the Investigator or designee.
  8. The subject is able to communicate satisfactorily with the Investigator and to participate in, and comply with, the requirements of the study.
  9. The subject is able to understand the nature of the study and any potential hazards associated with participating in it.
  10. Negative pregnancy test for female subjects of childbearing potential and female subjects less than 2 years of postmenopause. Women of childbearing potential (WOCBP) and Women of non-childbearing potential are eligible to participate. Both women of childbearing potential and women of non-childbearing potential must use an approved method of birth control and agrees to continue to use this method for the duration of the study and for 30 days after taking the last dose of FB2001.
Exclusion Criteria
  1. Pregnant or breastfeeding, or intending to become pregnant during the study or within 30 days after the final dose or who are not willing to use a highly effective method of contraception.
  2. HIV-infected subjects with viral load greater than 400 copies/mL or CD4 count less than 200 cell/µL from known medical history within past 6 months of the Screening Visit.
  3. Subject with moderate to severe hepatic impairment or acute liver failure.
  4. Known severe kidney disease.
  5. Participated in other intervention studies within 6 months.
  6. Has any condition for which, in the opinion of the Investigator, participation would not be in the best interest of the participant or that could prevent, limit, or confound the protocol-specified assessments including but not limited to participants who are not expected to survive longer than 48 hours after randomization, or participants who are expected to require mechanical ventilation within 48 hours after randomization, or participants with a recent history of mechanical ventilation.
  7. Subjects receiving any medications or substances that are strong inhibitors or inducers of CYP3A within 14 days of randomization.
  8. Received, ongoing or planed treatment with other anti-SARS CoV 2 therapeutics (including but not limited to known anti-SARS CoV 2 antibodies, small molecule antivirals, etc., other than remdesivir).
  9. Other conditions that may increase the risk of study participation or, in the Investigator's judgment, make the participant inappropriate for the study.
  10. Have known hypersensitivity to FB2001 or its excipients.
  11. Any planned vaccine within 28 days following the last administration of FB2001 for Injection.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Placebo groupFB2001 placeboPlacebo will be administered by IV infusion twice daily (BID) for up to 5 days, plus SOC.
FB2001 groupFB2001FB2001 will be administered by IV infusion twice daily (BID) for up to 5 days, plus SOC.
Primary Outcome Measures
NameTimeMethod
Time to sustained recovery (in days) from randomization up to Day 29.Up to Day 29

Day of sustained recovery is defined as the first day on which a subject is discharged from hospital, or hospitalized for infection-control or other non-medical reasons through Day 29

Secondary Outcome Measures
NameTimeMethod
Proportion of participants achieving SARS-CoV-2 virologic clearance on Day 3, 5, 8, 15 and 29On Day 3, 5, 8, 15 and 29

no specific description

Duration of non-invasive ventilation/high-flow oxygen (if applicable)Up to Day 29

no specific description

Proportion of participants with mechanical ventilation or all-cause-deathThrough Day 29 and Day 60

Proportion of participants with mechanical ventilation or all-cause-death in FB2001 group and placebo group

Proportion of participants with sustained recovery on Day 6On Day 6

no specific description

Days of invasive mechanical ventilation/ECMO (if applicable)Up to Day 29

no specific description

Population pharmacokinetic (PK) parameters to be measured/analyzed, including AUC, Cmax and CtroughDay0-Day 5

no specific descriptionsa

Clinical status category as assessed by an 8-category ordinal scale daily while hospitalized and on Days, 15 and 29.On Days 15 and 29

no specific description

Duration of each targeted COVID-19 sign/symptom until dischargeUp to Day 29

Duration of each targeted COVID-19 sign/symptom until discharge

Severity of each targeted COVID-19 sign/symptom until dischargeUp to Day 29

no specific description

Days of supplemental oxygen (if applicable)Up to Day 29

no specific description

Viral load change (log10) from baseline on Day 3, 5, 8 and 15.On Day 3, 5, 8 and 15

no specific description

Time to achieve SARS-CoV-2 virologic clearanceUp to Day 29

no specific description

Trial Locations

Locations (2)

Huashan Hospital Fudan University

🇨🇳

Shanghai, Shanghai, China

Beijing Ditan Hospital Capital Medical University

🇨🇳

Beijing, China

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