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InfluenzaPhase 2NCT04736758

A Clinical Study on the Safety and Efficacy of GP681 Tablets in the Treatment of Uncomplicated Acute Influenza

A Phase 2 study testing GP681 tablet and GP681 Simulant in people with Influenza, run by Jiangxi Qingfeng Pharmaceutical Co. Ltd. at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Analyse the time of flu symptom relief in adults with uncomplicated acute influenza,to evaluate the antiviral effects of high and low doses of GP681 tablets, and explore the optimal dose for phase III clinical trials. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Influenza
What is being tested?
GP681 tablet and GP681 Simulant
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
216 participants
Where
1 siteChina
Study dates
8 Jan 2021to 18 Dec 2021
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Positive Influenza rapid antigen test;
  • Fever (axillary temperature ≥37.3℃) or the axillary temperature ≥37.3℃ after taking the medicine for more than 4 hours;
  • At least one systemic symptom and respiratory symptom related to a moderate or above influenza virus infection:
  • Systemic symptoms: headache, fever or chills, muscle or joint aches, fatigue;
  • Respiratory system symptoms: cough, sore throat, nasal congestion.
  • Time of disease symptoms ≤48h

Who cannot join

  • Diagnosed as severe influenza patient ;
  • Known history of dysphagia or any gastrointestinal disease that affects drug absorption (including but not limited to reflux esophagitis, chronic diarrhea, inflammatory bowel disease, intestinal tuberculosis, gastrinoma, short bowel syndrome, stomach After subtotal resection, etc.);
  • Have used anti-influenza virus drugs (oseltamivir, zanamivir, peramivir, favipiravir, abidol, baloxavir dipivoxil, amantadine, or diamond) within 2 weeks before screening Ethylamine, etc.);
  • Acute respiratory infections, otitis media, sinusitis or other infectious diseases such as bronchitis, pneumonia, tuberculosis, etc. occurred within 2 weeks before screening, and are in the acute stage;
  • Patients who also suffer from bacterial or viral infections and need systemic antibacterial or antiviral therapy

Trial locations and contacts

1 site in 1 country.

China1 site
  • The First Affiliated Hospital of Nanchang University

    Nanchang, Jiangxi, 330006

Other trials in China

About this study

Official title: A Multi-center, Randomized, Double-blind, Placebo-controlled Phase II Clinical Study on the Safety and Efficacy of GP681 Tablets in the Treatment of Uncomplicated Acute Influenza

Analyse the time of flu symptom relief in adults with uncomplicated acute influenza,to evaluate the antiviral effects of high and low doses of GP681 tablets, and explore the optimal dose for phase III clinical trials.

Conditions
Influenza
Being tested
GP681 tablet, GP681 Simulant
Medical subject headings
Influenza, Human

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • GP681 tabletDrug

    influenza subjects is randomized 1:1:1 into GP681 tablet 40mg group,GP681 tablet 20mg group and Placebo group,with 72 patients in each group.subjects is given with GP681 tablet or GP681 Simulant only once to treat influenza.

  • GP681 SimulantDrug

    influenza subjects is randomized 1:1:1 into GP681 tablet 40mg group,GP681 tablet 20mg group and Placebo group,with 72 patients in each group.subjects is given with GP681 tablet or GP681 Simulant only once to treat influenza.

Study groups in NCT04736758
Study groupRoleWhat they receive
GP681 tablet 40mgExperimentalPatients in the GP681 tablet 40mg group is treated with GP681 tablet 40mg orally once with 240mL water.
Receives: Drug: GP681 tablet
GP681 tablet 20mgExperimentalPatients in the GP681 tablet 40mg group is treated with GP681 tablet 20mg orally once with 240mL water.
Receives: Drug: GP681 tablet
Placebo groupPlacebo comparatorPatients in the Placebo group is treated with GP681 Simulant orally once with 240mL water.
Receives: Drug: GP681 Simulant

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. time to alleviation of influenza symptoms

    Defined as the time from the start of treatment until the patient's body temperature returns to normal and all 7 flu symptoms (cough, sore throat, headache, nasal congestion, fever or chills, muscle or joint pain, fatigue) have alleviated (scoring 0 or 1 point) .

    Measured: Day 15

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Feb 2021
  2. Study start8 Jan 2021
  3. Primary completion18 Dec 2021
  4. Study completion18 Dec 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
216 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04736758
Sponsor's protocol ID
GP681-202002
Status last verified
Jul 2022
First submitted
27 Jan 2021
Last updated
26 Jul 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Wang Y, Wang H, Liu D, Ding Y, Zhang M, Xiao Z, Jiang X, Wu Y, Zhang W, Sun S, Chen X, Zhang W, Tang Y, Jiang M, Yang G, Jia W, Wang X, Tong J, Suo L, Yu Y, Yan X, Li Z, Li X, Cao B. Efficacy and safety of single-dose suraxavir marboxil tablet in the treatment of acute uncomplicated influenza in adults: a multi-centre, randomized, double-blind, placebo-controlled phase 2 clinical trial. Clin Microbiol Infect. 2025 May;31(5):861-868. doi: 10.1016/j.cmi.2025.01.025. Epub 2025 Jan 25.

    PubMed 39870350

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing GP681 tablet and GP681 Simulant in people with Influenza, run by Jiangxi Qingfeng Pharmaceutical Co. Ltd. at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Jul 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

time to alleviation of influenza symptoms (time frame: Day 15). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04736758, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Jul 2022.

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