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HH-120 Nasal Spray for Post-exposure Prevention of SARS-CoV-2

Phase 3
Conditions
COVID-19
Interventions
Registration Number
NCT05787418
Lead Sponsor
Huahui Health
Brief Summary

This study will assess the efficacy of HH-120 nasal spray in participants for the post-exposure prevention of SARS-CoV-2.

Detailed Description

During this study, participants will receive HH-120 nasal spray treatment for 7 consecutive days, the efficacy and safety of HH-120 nasal spray will be assessed throughout the study period mainly based on the incidence of symptomatic SARS-CoV-2 infection and adverse events, respectively.

Recruitment & Eligibility

Status
ENROLLING_BY_INVITATION
Sex
All
Target Recruitment
1200
Inclusion Criteria
  • 12 to 85 years old.
  • Participants with potential exposure to index patients (with known positive result of qRT-PCR or rapid antigen test [RAT]).
  • Participants will be randomized no longer than 48 hours from the onset of the COVID-19 related symptom of the index patients.
  • Participants with a negative RAT result within 2 hours prior to randomization.
  • Fertile participants must agree to use a highly effective method of contraception.
  • Participants being able and willing to provide informed consent prior to any study-specific procedure.
Exclusion Criteria
  • Those with high risk of cardiac events, or severe abnormal functions of liver, kidney, lung, brain and other organs and are deemed as unsuitable to participate in the study (except for those subjects with kidney failure but received regular dialysis, or those with liver dysfunction but stabilized after treatment evaluated by the evaluation of the investigators).
  • Those comorbid with asthma.
  • Those with a history of SARS-CoV-2 infection within 3 months prior to randomization.
  • Those who has received any nasal spray or aerosol inhalation COVID-19 vaccine within 3 months prior to randomization.
  • Those who experienced symptom of upper respiratory tract infection within 2 weeks prior to randomization, such as nasal congestion, sore throat, shortness of breath (dyspnea), cough, fatigue, fever, headache, etc.
  • Known history of allergy or reaction to any component of the study drug formulation.
  • Those who has received other treatment with anti-COVID-19 indication (within 1 month or 5 half-life period prior to randomization, whichever occurs first).
  • Participants with nasal disease that is inconvenient or intolerant of nasal spray administration.
  • Other reasons considered by the investigator to be unsuitable for the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Control groupPlaceboPlacebo
HH-120 groupHH-120 Nasal SprayHH-120 Nasal Spray
Primary Outcome Measures
NameTimeMethod
The incidence of symptomatic SARS-CoV-2 infectionUp to 7 days

Incidence of participants with quantitative Real-Time polymerase chain reaction (qRT-PCR) confirmed SARS-CoV-2 infection and COVID-19 related symptom

Secondary Outcome Measures
NameTimeMethod
The changes in SARS-CoV-2 viral nucleic acid loadUp to 7 days
Proportion of participants who progress to moderate/severe/critical type of COVID-19 or deathUp to 21 days
The incidence of SARS-CoV-2 infectionUp to 7 days
The incidence and titer of antidrug antibody (ADA)Up to 21 days
The change of viral load by qRT-PCRUp to 7 days
The incidence of symptomatic SARS-CoV-2 infectionUp to 5 days
Incidence and severity of adverse eventsUp to 21 days
Time to onset of first COVID-19 related symptomUp to 7 days
The incidence of symptomatic SARS-CoV-2 infection in different subgroupsUp to 7 days

Trial Locations

Locations (2)

Beijing Ditan Hospital, Capital Medical University

🇨🇳

Beijing, China

Huashan Hospital of Fudan University

🇨🇳

Shanghai, China

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