CP-COV03 versus placebo for adults with dengue or dengue-like illness
Official title: A Randomized, Double-blinded, Placebo-controlled Clinical Trial to Evaluate Safety and Efficacy of CP-COV03 in Dengue Patients (Part 1) / Dengue and Dengue-like Illness Patients (Part 2)
Run by Hyundai Bioscience Co., Ltd. · NCT07576868 · Data updated 2026-11-12
This trial tests whether taking CP-COV03 for seven days helps adults with dengue (or dengue-like illnesses) recover faster and lower their viral levels compared with a placebo.
Quick facts
| Phase | Phase2; Phase3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 210 (estimated) |
| Sponsor | Hyundai Bioscience Co., Ltd. Industry-sponsored |
| Locations | 2 sites (Hanoi and 1 other locations) |
| Status | Recruiting |
| Started | April 9, 2026 |
| Main results expected | January 2027 |
| Study ends | May 2027 |
| Registry record updated | July 10, 2026 |
| Trial ID | NCT07576868 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18 or older with recent-onset dengue symptoms—Phase 2 requires NS1 positivity and symptom onset within 72 hours with at least two moderate symptoms—are the intended participants.
✕Probably not a fit
People with severe dengue, prior dengue vaccination, or unstable chronic conditions such as uncontrolled diabetes or severe asthma were excluded and are unlikely to benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized, double-blind, placebo-controlled Phase 2/3 trial gives adults with recent-onset dengue or dengue-like illness either CP-COV03 or placebo and follows them for safety, antiviral effect, and clinical recovery. In Phase 2 about 210 NS1-positive patients within 72 hours of fever onset will be randomized to placebo or one of three daily doses (450, 900, or 1,350 mg) of CP-COV03 for seven days, with an independent DSMB performing an interim analysis to select the dose for Phase 3. Phase 3 expands enrollment to include patients with dengue-like illnesses and compares the selected dose against placebo for clinical and virologic outcomes. Key endpoints include symptom resolution, reduction in viral load, and monitoring for adverse events.
Why it matters
Potential benefit: If successful, CP-COV03 could shorten illness, reduce viral levels, and lower the risk of complications from dengue.
How similar studies have gone: There are few proven antiviral treatments for dengue and most candidate therapies have not shown clear clinical benefit, so this antiviral approach remains relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients who are 18 years or over of age at time of screening. * Patients who have at least two symptoms with a score of 2 or higher within 72 h from fever onset. * Patients who are diagnosed with dengue by NS1 positive (Phase 2- Part 1 only). And patients who are classified as dengue, zika, influenza, COVID-19 and others (Phase 3- Part 2 only) Exclusion Criteria: * Patients who show severe dengue (WHO dengue guideline C, any severe symptoms or clinical laboratory results) * Patients who have previously received dengue vaccine * Patients who have chronic medical conditions such as uncontrolled diabetes mellitus, severe asthma requiring oral steroids or admission to the hospital in the previous 6 months for cardiac disease
Where it's running
-
The National Hospital of Tropical Diseases (NHTD)
Hanoi, Vietnam Recruiting -
Tien Giang Provincial General Hospital
Mỹ Tho, Vietnam Recruiting
Study contacts
- Study coordinator: Central Contact Person
- Email: clinical@hyundaibio.com
- Phone: +82-1544-3194
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.