Clinical trials: Flavivirus Infections
Yellow Fever (Healthy Volunteers), Biopsy/Methods
Baseline Assessment of Skin Resident Memory T Cells in Healthy Unvaccinated Participants
In The main GeKoSkimm trial (= A randomized controlled trial to compare the immunogenicity and skin imprinting of intradermal, subcutaneous and intramuscular yellow fever vaccination) the investigators try to understand whether…
- Trial name
- NCT07636551
- Testing
- Skin punch biopsy, Blood samples
- Where
- Belgium
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Institute of Tropical Medicine, Belgium
Japanese Encephalitis
Immunogenicity of a JE-CV as a Booster Dose After a Primary Vaccination With SA14-14-2 Vaccine
The objective of this study is to measured the Geometric mean titer (GMT) of Japanese Encephalitis neutralizing antibody and proportion of seroprotection among the children who received a booster dose of JE-CV after the first…
- Trial name
- NCT02602652
- Testing
- a live attenuated chimeric JE vaccine
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Chulalongkorn University
Yellow Fever, Yellow Fever Immunisation
A Trial to Evaluate the Safety, Reactogenicity, and Immunogenicity of MVA-BN Yellow Fever Vaccine With and Without Montanide ISA-720 Adjuvant in 18-45 Year Old Healthy Volunteers
This study is a multi-center, double-blind, placebo-controlled, Phase I study to evaluate the safety, reactogenicity, tolerability, and immunogenicity of Modified Vaccinia Ankara-Bavarian Nordic-Yellow Fever (MVA-BN-YF) in…
- Trial name
- NCT02743455
- Testing
- ISA-720, MVA Smallpox Vaccine, MVA-BN Yellow Fever Vaccine
- Where
- 2 sites in United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Encephalitis, Tick-Borne
Evaluation of Long-Term Immunogenicity in Children and Adolescents Boosted With a New Pediatric TBE Vaccine After Five Years
blood draw five years after booster-immunization with TBE vaccine to investigate immunogenicity in children
- Trial name
- NCT00452621
- Testing
- blood draw
- Where
- 8 sites in Germany
- Volunteers
- 235 people, healthy volunteers welcome
- Sponsor
- Novartis
Fever, Dengue
Cohort of Patients Infected by an Arbovirus
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…
- Conditions
- Fever, Dengue, Chikungunya, Zika Virus
- Trial name
- CARBO (NCT01099852)
- Testing
- biological sample collection, Quality of life Questionnaire EuroQol®, Health Assessment Questionnaire - MDHAQ and RAPID3
- Where
- 8 sites in France, French Guiana and 3 more
- Volunteers
- 1,377 people
- Sponsor
- University Hospital Center of Martinique
Dengue Fever, Dengue Hemorrhagic Fever
Immunogenicity and Safety of Different Vaccination Schedules of Tetravalent Dengue Vaccine in Healthy Subjects 9 to 50 Years of Age
The aim of the study was to assess the immune response and the safety of different vaccination schedules of CYD dengue vaccine. The primary objectives of the study were: To demonstrate the non-inferiority of the immune response…
- Trial name
- NCT02628444
- Testing
- CYD Dengue Vaccine
- Where
- 6 sites in Colombia, Philippines
- Volunteers
- 1,050 people, healthy volunteers welcome
- Sponsor
- Sanofi Pasteur, a Sanofi Company
Dengue Fever, Fever
Prospective Surveillance of Febrile Illness for Dengue-Endemic Areas in Asia
The purpose of this study is to detect acute febrile episodes and dengue infection in five Asian countries, to assess dengue seroprevalence, and to assess surveillance infrastructure at investigational sites in anticipation of a…
- Trial name
- NCT01218906
- Where
- 11 sites in Indonesia, Malaysia and 3 more
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- Sanofi
Dengue Shock Syndrome, Dengue Hemorrhagic Fever
Safety of and Immune Response to DEN4 Vaccine Component Candidate for Dengue Virus
Infection with dengue viruses is one of the leading causes of hospitalization and death in children in several tropical Asian counties.
- Trial name
- NCT00919178
- Testing
- DEN4 Vaccine Candidate
- Where
- 2 sites in United States
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Dengue
Expansion of a Dengue-1 Live Virus Human Challenge
To evaluate the effectiveness of candidate dengue vaccine formulations, it is prudent to develop an appropriate challenge model.
- Trial name
- NCT03869060
- Testing
- Dengue-1 Virus-Live Virus Human Challenge (DENV-1-LVHC)
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- State University of New York - Upstate Medical University
Yellow Fever
Trial of an Inactivated Yellow Fever Virus Vaccine
This trial will be a randomized, placebo controlled, double-blind (within dosing group), dose escalation Phase 1 trial, evaluating dosages of 1 mcg and 5 mcg of HydroVax-002 YFV vaccine given intramuscularly on Day 1 and Day 29…
- Trial name
- NCT05172544
- Testing
- HydroVax-002 YFV
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Najit Technologies, Inc.
Zika Virus
Evaluation of Medical Conditions Associated With Zika Virus Infection in Managua, Nicaragua
Zika virus (ZIKV) infection spread throughout the Americas with devastating consequences. Recent limited evidence suggests the potential for neurological effects associated with postnatally acquired ZIKV infection in humans…
- Trial name
- NCT04182685
- Where
- Nicaragua
- Volunteers
- 410 people, healthy volunteers welcome
- Sponsor
- RTI International
Chronic Hepatitis C, Hepatitis C
Study of AT-527 in Healthy and HCV-Infected Subjects
This study has multiple parts. It will assess the safety, tolerability and pharmacokinetics (PK) of AT-527 in healthy subjects and subjects infected with hepatitis C virus (HCV).
- Conditions
- Chronic Hepatitis C, Hepatitis C, Hepatitis C, Chronic
- Trial name
- NCT03219957
- Testing
- AT-527
- Where
- 2 sites in Belgium, Moldova
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- Atea Pharmaceuticals, Inc.
DENV Without Warning Signs, DENV with Warning Signs
Innovative Multidisciplinary Strategies for Combating Severe Dengue
The goal of this observational study is to identify biomarkers and host factors associated with dengue severity in patients from dengue-endemic regions.
- Conditions
- DENV Without Warning Signs, DENV with Warning Signs, Severe Dengue, Healthy Controls Group - Age and Sex-matched
- Trial name
- COMBAT (NCT06751836)
- Testing
- Infection and no infection
- Where
- 2 sites in Guatemala, India
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Dengue, Dengue Hemorrhagic Fever
Study of CYD Dengue Vaccine in Healthy Children and Adolescents in South America
The purpose of this study is to generate immunogenicity and safety data in preparation for efficacy studies in Latin America. Primary Objectives: To describe the immune response to dengue viruses before and after each vaccination…
- Trial name
- NCT01187433
- Testing
- Live, attenuated, recombinant dengue serotype 1 , 2, 3 , and 4 virus, NaCl 0.9%, Tetanus toxoid, reduced diphtheria toxoid, acellular pertussis vaccine adsorbed
- Where
- Brazil
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Sanofi Pasteur, a Sanofi Company
Dengue Vaccines
Characterisation of Dengue Vaccine-induced Specific Immunity in Vaccinees With and Without Prior Exposure to Flavivirus Infections or Vaccination
The goal of this observational study is to learn about the immunity induced by the Qdenga® vaccine in vaccinees. Participants that will receive the Dengue vaccine as part of their routine before a travel will be asked to undergo…
- Trial name
- VaQDENV (NCT06776692)
- Testing
- Qdenga
- Where
- Italy
- Volunteers
- 402 people, healthy volunteers welcome
- Sponsor
- IRCCS Sacro Cuore Don Calabria di Negrar
Dengue Hemorrhagic Fever, Awareness
Evaluating Public Awareness and Preventive Actions for Dengue Fever in Sudan Amidst Ongoing Crises
This study evaluates the awareness of dengue fever and preventive measures among Sudanese people during the war. It assesses knowledge, awareness, implementation of prevention, access to healthcare, community involvement, and the…
- Trial name
- NCT07205848
- Testing
- No intervention
- Where
- Sudan
- Volunteers
- 164 people, healthy volunteers welcome
- Sponsor
- Research and Publication office
Dengue Fever
Lot-to-lot Consistency of 3 Lots of Tetravalent Dengue Vaccine (TDV) in Non-endemic Country(Ies) for Dengue
The purpose of this study is to investigate lot-to-lot consistency in terms of equivalence of the immune responses induced by 3 consecutive TDV lots in healthy participants aged 18 to 60 years in non-endemic country(ies) for…
- Trial name
- NCT03423173
- Testing
- TAK-003
- Where
- 14 sites in United States
- Volunteers
- 923 people, healthy volunteers welcome
- Sponsor
- Takeda
Japanese Encephalitis, Chickenpox
Immunogenicity and Safety of Live Attenuated Varicella Vaccine Combined With Live Attenuated JE Vaccine
The purpose of this study is to observe the occurrence of adverse events and seroconversion rate, geometric mean titres (GMTs) of live attenuated varicella vaccine，live attenuated JE vaccine and live attenuated varicella vaccine…
- Trial name
- NCT01815073
- Testing
- Live Attenuated Varicella Vaccine + Live Attenuated JE Vaccine, Live Attenuated Varicella Vaccine, live attenuated JE vaccine
- Where
- China
- Volunteers
- 497 people, healthy volunteers welcome
- Sponsor
- Changchun Keygen Biological Products Co., Ltd.
Zika Virus, Zika Virus Infection
VRC 705: A Zika Virus DNA Vaccine in Healthy Adults and Adolescents
This was a multicenter, randomized study to evaluate the safety, immunogenicity, and efficacy of VRC-ZKADNA090-00-VP (Zika virus wildtype DNA vaccine) or placebo.
- Conditions
- Zika Virus, Zika Virus Infection, Virus Diseases, Flavivirus Infections
- Trial name
- DNA (NCT03110770)
- Testing
- VRC-ZKADNA090-00-VP, VRC-PBSPLA043-00-VP
- Where
- 17 sites in United States, Brazil and 7 more
- Volunteers
- 2,428 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Dengue Fever
Evaluation Study of Dengue RDTs
RT-PCR and virus isolation are considered gold standard for diagnosis of Dengue from blood during first few days of infection. Serological methods such as enzyme-linked immunosorbent assays (ELISA), confirms the presence of a…
- Trial name
- NCT05580731
- Testing
- Diagnostic test: 5 different Rapid diagnostic test and Reference tests
- Where
- Pakistan
- Volunteers
- 430 people
- Sponsor
- Foundation for Innovative New Diagnostics, Switzerland