Active clinical trials for "Dengue"

Dengue fever, which is caused by dengue viruses, is a major health problem in tropical and subtropical regions of the world. The purpose of this study is to test the safety of and immune response to a new dengue virus vaccine in healthy adults.

Dengue fever, which is caused by dengue viruses, is a major health problem in tropical and subtropical regions of the world. The purpose of this study is to test the safety of and immune response to a new dengue virus vaccine in healthy adults.

The purpose of this study is to investigate the immunogenicity and safety of the concomitant administration of TDV (subcutaneous [SC] injection) and of hepatitis A virus (HAV) vaccine (intramuscular [IM] injection) in healthy participants aged 18 to 60 years living in country(ies) non-endemic for both dengue and hepatitis.

The aim of this study was to investigate the immunogenicity and safety of CYD dengue vaccine and Cervarix when administered concomitantly or sequentially in healthy female participants aged 9-14 years of age. Primary objectives: To demonstrate that the humoral immune response (in terms of geometric mean titers [GMTs]) to Cervarix after concomitant administration with the CYD dengue vaccine is non-inferior to the humoral immune response (in terms of GMTs) after sequential administration with the CYD dengue vaccine measured 28 days after the last dose of Cervarix. To demonstrate that the humoral immune response (in terms of GMTs) to the CYD dengue vaccine after concomitant administration with Cervarix is non-inferior to the humoral immune response (in terms of GMTs) to the CYD dengue vaccine after sequential administration with Cervarix measured 28 days after the last dose of the CYD dengue vaccine. Secondary Objectives: To demonstrate that the humoral immune response (in terms of seroconversion) to Cervarix after concomitant administration with the CYD dengue vaccine is non-inferior to the humoral immune response (in terms of seroconversion) to Cervarix sequential administration with the CYD dengue vaccine measured 28 days after the last dose of Cervarix. To describe the humoral immune response to Cervarix at baseline and after each dose of Cervarix in each and any group. To describe the humoral immune response to the CYD dengue vaccine at baseline and after each dose of the CYD dengue vaccine, in each and any group. To describe the safety of Cervarix and CYD dengue vaccine after each and any dose in each group.

The purpose of this study is to evaluate the safety and immune response of a naturally aged lot of tetravalent dengue vaccine (TDV) in healthy participants, aged 18 to 60 years, in non-endemic country(ies) for dengue.

Phase II, randomized, double-blind, placebo-controlled study of the safety and immunogenicity of the recombinant live attenuated tetravalent dengue virus vaccine admixture TV005 in the elderly in Taiwan

Dengue viruses are widespread in most tropical and subtropical regions of the world. This study will evaluate the safety and protective efficacy of a dengue vaccine (called TV005) against viremia and rash induced by a DENV-2 vaccine virus (called rDEN2∆30-7169) in healthy adults.

Dengue viruses infect millions of people throughout the tropics and subtropics each year. The development of a dengue vaccine is an important health priority. This study will evaluate the immunologic and clinical response to two dengue vaccines, given 9 months apart, in healthy adults with no history of previous flavivirus infection.

Dengue viruses are mosquito-borne flaviviruses. Each year, dengue viruses infect millions of people throughout the tropics and subtropics. This study will evaluate the safety, tolerability, and immunogenicity of a tetravalent recombinant subunit dengue vaccine (V180) in healthy adults who previously received a live-attenuated tetravalent dengue vaccine (TV003 or TV005).

The aim of the study was to assess and describe the booster effect of a tetravalent CYD dengue vaccine dose administered about 5 years or more after the completion of a 3-dose vaccination schedule in Singapore. Primary Objective: To demonstrate the non-inferiority in terms of geometric mean of titer ratios (GMTRs) of a CYD dengue vaccine booster compared to the third CYD dengue vaccine injection in participants from CYD28 trial (participants from Group 1 only). Secondary Objectives: If the primary objective of non-inferiority achieved: To demonstrate the superiority, in terms of GMTRs, of a CYD dengue vaccine booster compared to the third CYD dengue vaccine injection in participants from CYD28 trial (participants from Group 1 only). To describe the immune responses elicited by the CYD dengue vaccine booster or placebo injection in participants who received three doses of the CYD dengue vaccine in the CYD28 trial in all participants. To describe the neutralizing antibody levels of each dengue serotype Post Dose 3 (CYD28 participants) and immediately prior to booster or placebo injection in all participants. To describe the neutralizing antibody persistence 6 months, 1 year and 2 years post booster or placebo injection in all study participants. To evaluate the safety of booster vaccination with CYD dengue vaccine in all participants.