View clinical trials related to Dengue.
Filter by:This is a Phase II/III, Randomized, Double-Blind, Placebo-Controlled Study of Efficacy and Safety of Ivermectin in Children and Adult patients with Dengue Infection.
To meet eligibility criteria, this study and informed consent of the syndrome of fever associated with bleeding of infectious diseases, severe patients to carry out multicenter, practical randomized controlled clinical research, to compare the curative effect of western medicine, combining Chinese and western medicine treatment, and security, and pathogenesis of TCM and syndrome, severe immune related factor and syndrome type of traditional Chinese medicine, Chinese medicine prescriptions mechanism research.
There are hundred of arbovirus which have been shown to cause disease in humans. Their most common clinical symptoms are algo-eruptive (dengue, chikungunya, zika), hemorrhagic fever (dengue, yellow fever, Crimean-Congo hemorrhagic fever), neurological (West Nile, Zika, dengue, Japanese encephalitis) or arthritic afflictions (Chikungunya, O'nyong nyong). Dengue is a mosquito-born viral disease caused by 4 different serotypes of virus. Dengue fever (DF) is defined by the sudden onset of fever with non-specific constitutional symptoms, recovery occurring spontaneously in 3 to 7 days. The infection can sometimes progress to dengue hemorrhagic fever (DHF) characterized by a transient increase in vascular permeability provoking a plasma leakage syndrome. DHF can be complicated by shock and internal hemorrhage. Other rarer complications include encephalitis, hepatitis, rhabdomyolysis and myocarditis. There is currently no way of predicting the outcome of DF or DHF and the WHO classification lacks sufficient sensitivity and specificity to recognize and guide the management of severe forms of dengue. The pathophysiology of these forms is also poorly known. Since 2000s, the French West Indies and Guiana have become hyperendemic for dengue with simultaneous circulation of the 4 serotypes, regular large outbreaks and severe dengue including fatalities. Chikungunya is a re-emerging virus causing massive epidemics in Africa, in the Indian Ocean and Southeast Asia. The first autochthonous cases were described in French Antilles in Nov 2013. The disease typically consists of an acute illness like dengue fever with abrupt onset of a high-grade fever followed by constitutionals symptoms, poly-arthritis and skin involvement. Usually, the illness resolves in 4 to 6 weeks. However, severe clinical forms in early stage may appear and chronic clinical forms as incapacitating arthralgia which affect 40 to 60% of patients. In France, others arboviruses may cause severe emerging and re-emerging infectious diseases like Zika or West Nile. In non-immunized population these emerging diseases may cause outbreaks with specific severe clinical complications. The French interministerial mission on emerging infectious diseases coordinated by Professor Antoine Flahault, recommended such studies: large prospective multicenter cohort studies to characterize severe forms of arbovirus infections to seek predictive factors and to investigate the pathophysiology of the diseases.
Rural communities involved in agriculture are often at highest risk of insect-borne diseases in Southeast (SE) Asia. Skin-applied insect repellents may prove a useful means of reducing mosquito-borne diseases for those people working outdoors in high risk areas. This trial is evaluating the use of insect repellent (20% diethyltoluamide) to reduce incidence of malaria, Japanese Encephalitis and Dengue. The investigators will recruit up to 1000 households from 100 villages in rural Laos. In each house the investigators shall recruit up to 5 individuals. Half of households will be randomised to repellent, half to a placebo. All individuals will be provided with insecticide treated bed nets for use at night. All household occupants will be followed for 7 months to record malaria cases by Rapid Diagnostic Test every month. Blood spots will be collected at start and end of study to measure Japanese Encephalitis and Dengue. All positive cases will be promptly treated. Outcome will be reduction in number of malaria cases (primary outcome) and Dengue/Japanese Encephalitis (secondary outcomes).
The study will collect the blood samples from 350 healthy persons and 350 persons infected with dengue fever.
Dengue is a common disease and a major health concern in the Philippines. Dengue is caused by a virus transmitted from the bite of an infected mosquito. The purpose of this study is to understand why some infants remain well or have a mild illness, and why other infants become very sick from this virus. Studies have shown that the mother's immune response to dengue can play a role in the infant's immune response and affect whether or not the infant becomes sick. This study will enroll up to 10,000 healthy infants 6-14 weeks old and their mothers in San Pablo City. At the first study visit, information about the mother and birth will be collected and blood samples will be taken from the mother and infant. The infant will have blood drawn at all 3 study visits. The infants will be followed until the age of 16 months. The information obtained from this study may help in the development and future testing of a safe and effective dengue vaccine.