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A Study to Assess the Efficacy, Safety and Pharmacokinetics of EYU688 in Patients With Dengue Fever

A Randomized, Participant- and Investigator-blinded, Placebo-controlled, Parallel Group Study to Assess the Efficacy, Safety and Pharmacokinetics of EYU688 in Patients With Dengue Fever

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06006559
Enrollment
108
Registered
2023-08-23
Start date
2024-02-20
Completion date
2027-07-30
Last updated
2026-09-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dengue

Keywords

Dengue, EYU688

Brief summary

The purpose of this study is to characterize the effect on dengue viral load, fever clearance time as well as on clinical signs and symptoms with the treatment of EYU688 compared with placebo in patients with dengue fever.

Detailed description

This is a randomized, participant- and investigator- blinded, placebo-controlled study to investigate the efficacy and safety of EYU688 administered orally in patients with dengue fever. Due to the different PK sampling schedules applied, the study consists of two cohorts run in parallel (intensive PK \[cohort 1\] and sparse PK sampling \[cohort 2\]).

Interventions

DRUGEYU688

EYU688 administered by oral route

DRUGPlacebo

Matching placebo administered orally as capsules

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Male or female, 18 - 60 years old (inclusive). * History or presence of fever (≥ 38°C). At least one of the following criteria indicating dengue infection: * Nausea or vomiting. * Presence of rash, aches or pains including headache, muscle or joint pain. * Onset of fever ≤ 48 hours prior to treatment start. * Positive test on dengue fever.

Exclusion criteria

* Participants with any of abnormalities of clinical laboratory parameters. * Usage of any anticoagulant drugs. * Current significant medical conditions or illness that the investigator considers should exclude the participants, especially those that require continuation of other medications likely to have an interaction with the study drug. * Pregnant or nursing (lactating) women. * Clinical signs and symptoms for severe dengue according to Dengue Guideline (WHO 2009) at screening. * Participants with any of the following abnormalities of clinical laboratory parameters at screening: * Hemoglobin \<12.0 g/dL in males; \<11.0 g/dL in females * Hematocrit \>52 % in males; \>46 % in females * Absolute neutrophil count \<1500/μL * Platelet count \<80,000/mm3 * Creatinine \>165 μmol/L in males; \>130 μmol/L in females * Serum creatine kinase \> 600 U/L * ALT, AST levels more than 3 X upper limit of normal (ULN) * Total bilirubin \>24 μmol/L * Usage of PPIs (proton pump inhibitor) which could affect absorption of EYU688 due to stomach pH value increase up to 48 hours prior to screening. * Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, unless they are using highly effective methods of contraception during dosing and for 4 days after stopping of investigational drug. * History or long-QT syndrome, or clinically significant ECG abnormalities, or any of the following ECG abnormalities at screening: * QTcF \> 450 msec (males) * QTcF \> 460 msec (females) Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Viremia reduction (viral load reduction (VLR) on log scale) at 48 hours post treatment startFrom predose to 48 hours post treatment startEfficacy assessment of EYU688. It will allow to quantify the viremia reduction at 48 hours post treatment start from baseline.

Secondary

MeasureTime frameDescription
Time from fever onset to start of the first 48 hours period during which the oral temperature remained below 37.5℃From fever onset to Day 15Efficacy assessment of EYU688. It will allow to assess the time needed between fever onset and defervescence.
Time from fever onset to the first of two consecutive negative viremia by PCRFrom fever onset to Day 15Efficacy assessment will allow to assess the viremia kinetic from treatment start to Day15
Area under the log-transformed viremia curve (AUC) from the first dose to Day 15From fever onset to Day 15Efficacy assessment will allow to assess the viremia kinetic from treatment start to Day 15
Changes of viral load over timeFrom baseline to Day 15Efficacy assessment will allow to assess the viremia kinetic from treatment start to Day15
Incidence and severity of Adverse Events (AEs)From inclusion to Day 15Incidence and severity of AEs by treatment group, including changes in vital signs, electrocardiograms (ECGs) and laboratory results qualifying and reported as AEs.
Incidence and severity of Serious Adverse Events (SAEs)From inclusion to Day 35Incidence and severity of SAEs by treatment group
Change of white blood cell count over time from baselineFrom baseline to Day 15Assessment of safety and tolerability of EYU688
Change of platelet count over timeFrom baseline to Day 15Assessment of safety and tolerability of EYU688
Change of hematocrit level and percentage increase from baseline over timeFrom baseline to Day 15Assessment of safety and tolerability of EYU688
Change of AST, ALT levels over timeFrom baseline to Day 15Assessment of safety and tolerability of EYU688
No warning signs by day 7 of fever onsetFrom inclusion to Day 15Assessment of the dengue fever clinical evolution under EYU688
Diagnosis of severe dengue feverFrom inclusion to Day 15Assessment of the dengue fever clinical evolution under EYU688
Diagnosis of dengue hemorrhagic fever (DHF)From inclusion to Day 15Assessment of the dengue fever clinical evolution under EYU688
Plasma leakageFrom inclusion to Day 15Assessment of the dengue fever clinical evolution under EYU688
Requiring fluid infusionFrom inclusion to Day 15Assessment of the dengue fever clinical evolution under EYU688
Time from fever onset to clinical recoveryFrom fever onset to Day 15Assessment of the dengue fever clinical evolution under EYU688
PK parameter (Cmax)From Day 1 to Day 6Pharmacokinetic assessment of EYU688 in dengue fever patients
PK parameter (Tmax)From Day 1 to Day 6Pharmacokinetic assessment of EYU688 in dengue fever patients
PK parameter (partial AUCs)From Day 1 to Day 6Pharmacokinetic assessment of EYU688 in dengue fever patients
PK concentrations following multiple dosesFrom Day 1 to Day 6Pharmacokinetic assessment of EYU688 in dengue fever patients

Countries

Brazil, Colombia, India, Malaysia, Mexico, Singapore, Vietnam

Contacts

CONTACTNovartis Pharmaceuticals
novartis.email@novartis.com+41613241111

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 16, 2026