← Eichor
Study identifier: NCT06574503 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Study to Assess the Efficacy and Safety of GP681 Versus Placebo for Postexposure Prophylaxis Against Influenza

Condition: Influenza  ·  Sponsor: Jiangxi Qingfeng Pharmaceutical Co. Ltd.

PhasePhase 3
Planned participants748
Who can joinAll sexes, 12 Years to no upper limit
Healthy volunteersYes

About this study

Index patients who are infected with influenza virus (Q-PCR positive) can be treated with anti-influenza drugs if their influenza symptoms onset was within 48 hours of screening. Their eligible households will be randomized to either GP681 tablets or placebo if at least 1 household contacts have not received influenza vaccine with 6 months of screening and if all household contacts screen negative for influenza infection. The main endpoints are assessed based on multiple respiratory swabs, obtained from household contacts up to Day 10, and through the assessment of symptoms.

This description comes directly from the study's public registry record.

Talk to the study team

Siyuan Xi  ·  84206250  ·  ZRYHYYGCPEC@126.com

Bin Cao, phd  ·  13911318339  ·  caobin_ben@163.com

Always discuss trial participation with your own doctor first.

Locations (1)

Shulan (Hang Zhou) HospitalHanzhou, ChinaRecruiting

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT06574503