A Study of JNJ-64281802 Against Dengue Serotype 1 Infection in a Dengue Human Challenge Model in...
HealthyThe purpose of this study is to assess the antiviral activity of JNJ-64281802 versus placebo in terms of reduction of dengue virus 1 (DENV-1) ribonucleic acid (RNA) viral load (VL).
Study of a Tetravalent Dengue Vaccine Administered Concomitantly or Sequentially With Adacel® in...
Dengue FeverDengue Hemorrhagic FeverThe aim of the study was to investigate the immunogenicity and safety of CYD dengue vaccine and Tetanus Toxoid (T), Reduced Diphtheria Toxoid (D) and Acellular Pertussis Vaccine Adsorbed (ap) (Tdap) vaccine when both vaccines were administered concomitantly or sequentially. Primary Objectives: To demonstrate the non-inferiority of the humoral immune response to the Tdap booster dose concomitantly administered with the first dose of CYD dengue vaccine as compared to sequential administration, measured 28 days after Tdap booster dose. To demonstrate the non-inferiority of the humoral immune response to the first dose of CYD dengue vaccine concomitantly administered with Tdap as compared to sequential administration, measured 28 days after the first dose of CYD dengue vaccine. Secondary Objectives: To demonstrate the non-inferiority of the humoral immune response of 3 doses of CYD dengue vaccine with the first dose concomitantly administered with Tdap as compared to sequential administration, measured 28 days after the third dose of CYD dengue vaccine. To describe the humoral immune response at baseline and 28 days after the first and third doses of CYD dengue vaccine, in each and any group. To describe the humoral immune response of Tdap vaccine at baseline and 28 days after concomitant administration with the first dose of CYD dengue vaccine as compared to the sequential administration, in each and any group. To describe the safety of the CYD dengue vaccine and of the Tdap booster dose after each and any injection in each group.
Safety Study of Dengushield in Healthy Adults
Phase 1DengueThis Phase 1 study to evaluate the safety of a single dose of Dengushield (dengue monoclonal antibody) in healthy adults.
Celgosivir as a Treatment Against Dengue
Dengue FeverThis is a Randomized, Double-Blind, Placebo-Controlled, Phase 1b Clinical Study to Evaluate the Activity, Pharmacokinetics, Safety and Tolerability of Celgosivir in Adults with Confirmed Dengue Fever.
A Study of Balapiravir in Patients With Dengue Virus Infection
DengueThis randomized, double-blind, multiple-dose, placebo-controlled study will evaluate the safety, tolerability and efficacy of balapiravir in adult male patients with confirmed dengue virus infection whose symptoms began within the 48 hours preceding the first administration of balapiravir. Patients will be randomized to receive either balapiravir or placebo, orally twice daily for 5 days. Anticipated time on treatment as in-patient is 7 days, with an out-patient follow-up to week 12. Target sample size is <200
Effect of Montelukast in Preventing Dengue With Warning Signs in Dengue Patients
DengueDengue With Warning Signs1 moreThis study aims to determine the efficacy of montelukast in reducing the incidence of dengue warning signs in adult dengue patients.
Safety of Paracetamol as Antipyretic in Treatment of Dengue Infection in Adults
DengueTransaminitisThe purpose of this study is to determine whether regular dosage of paracetamol causes transaminitis (hepatitis) and evaluate its potency in the treatment of dengue infection.
Activated Recombinant Human Factor VII in Patients With Dengue Haemorrhagic Fever
Acquired Bleeding DisorderDengue Haemorrhagic FeverThis trial is conducted in Asia. The aim of this is to investigate the efficacy and safety of activated recombinant human factor VII (rFVIIa) in achieving haemostasis in patients with Dengue haemorrhagic fever (DHF).
Dengue Vaccine Hesitancy and Acceptance in Endemic Regions of Argentina: Impact of Communication...
DengueAmong all arboviruses, Dengue (DEN) is the vector borne disease with the highest burden worldwide. Around 390 million infections per year are estimated, of which around 96 million are clinically apparent. Since its re-emergence in 1998 in Argentina, DEN has shown an epidemic behavior affecting mainly the northern and central regions in which the circulation of serotypes has been heterogeneous. The last significant outbreak was registered between the end of 2019 and the beginning of 2020.. Vaccine development for DEN prevention has been a long and challenging journey. The only vaccine that has reached registration to date is a recombinant attenuated tetravalent vaccine (Dengvaxia, Sanofi Pasteur) showing an efficacy against virological confirmed DEN infection of 36.6% (4.2-61.4) in seronegative subjects at baseline and 77.9% (65.1-86.0) in seropositive. However, this vaccine has not been pre qualified by the World Health Organization. New dengue vaccines are in advanced stages of development worldwide. At least three vaccines are in advanced stages of development including one produced by Takeda, the Butantan Institute and the Merck, Sharp & Dohme development. The implementation of a vaccination strategy in Argentina could be a health-relevant approach. However, the best way to implement this requires prior information describing and investigating numerous aspects of vaccination including acceptability. A systematic review of two acceptability surveys showed an acceptability of 77% to 86% but in countries with endemic DEN at time of the surveys. It is possible that in Argentina, the introduction to the regular calendar, for use in specific regions with a high and periodic burden of disease, of highly effective and safe DEN vaccines will be considered. However, to our knowledge, we do not have available evidence of the potential acceptability of these vaccines. The main objectives of this research will be: To evaluate the acceptability of a DEN vaccine in potential target populations in regions of high burden of disease in Argentina. Describe main determinants of and barriers to DEN vaccine acceptability in regions of high burden of disease in Argentina. Identify information and intervention needs to design and implement communication strategies that have a positive impact on the acceptability of a DEN vaccine.
Applying Wolbachia to Eliminate Dengue
DengueZika Virus Infection1 moreThis cluster randomised trial will evaluate the efficacy of Wolbachia-infected Aedes aegytpi mosquitoes in reducing dengue cases in Yogyakarta City, Indonesia