Dengue
Conditions
Keywords
Dengue Vaccine
Brief summary
This study will evaluate the ability of a single dose of the live attenuated recombinant tetravalent dengue vaccine TetraVax-DV-TV005 (referred to as TV005) to protect against infection with rDEN3Δ30, an attenuated DENV-3, when administered 6 months after the TV005 vaccine.
Detailed description
Dengue infection ranging from mild illness to life-threatening disease is widespread in most tropical and subtropical regions of the world. Infection with any of the four serotypes of dengue virus (DENV-1, DENV-2, DENV-3, and DENV-4) can cause dengue illness. TetraVax-DV-TV005 (referred to as TV005) is a live attenuated recombinant tetravalent dengue virus vaccine developed to protect against all four dengue virus serotypes. This study will evaluate the ability of a single dose of TV005 to protect against infection with rDEN3Δ30, a naturally attenuated DENV-3, given 6 months following vaccination with TV005. This study will enroll healthy adults with no history of previous flavivirus infection. At Day 0 (study entry), participants will be randomly assigned to receive either the TV005 vaccine or placebo. On Day 180, all participants will receive the rDEN3Δ30 virus. All participants will record their temperature 3 times a day for 16 days after each vaccination. Additional study visits will occur on Days 4, 6, 8, 10, 12, 14, 16, 21, 28, 56, 90, 150, 184, 186, 188, 190, 192, 194, 196, 201, 208, 236, 270, and 360. Study visits will include physical examinations and blood collection.
Interventions
BIOLOGICALTetraVax-DV-TV005
TetraVax-DV-TV005 contains 10\^3.3 plaque forming units (PFU)/mL of rDEN1Δ30, 10\^4.3 PFU/mL of rDEN2/4Δ30(ME), 10\^3.3 PFU/mL of rDEN3Δ30/31-7164, and 10\^3.3 PFU/mL of rDEN4Δ30. The vaccine is administered in 0.5 mL containing 10\^3.0 PFU of each component with the exception of rDEN2/4Δ30 that is given at a dose of 10\^4 PFU. TetraVax-DV-TV005 is administered by subcutaneous injection in the deltoid region of the upper arm.
BIOLOGICALrDEN3Δ30
Administered at a dose of 10\^4 PFU by subcutaneous injection in the deltoid region of the upper arm.
BIOLOGICALPlacebo
Administered at a volume of 0.5 mL by subcutaneous injection in the deltoid region of the upper arm.
Sponsors
National Institute of Allergy and Infectious Diseases (NIAID)
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* Adult male or female between 18 and 50 years of age, inclusive. * Good general health as determined by physical examination, laboratory screening, and review of medical history. * Available for the duration of the study, approximately 26 weeks post-second inoculation. * Willingness to participate in the study as evidenced by signing the informed consent document. * Females Only: Female subjects of childbearing potential willing to use effective contraception. Reliable methods of contraception include hormonal birth control, condoms with spermicide, diaphragm with spermicide, surgical sterilization, intrauterine device, and abstinence (greater than or equal to 6 months since last sexual encounter). All female subjects will be considered having child-bearing potential except for those with hysterectomy, tubal ligation, tubal coil (at least 3 months prior to vaccination), or post-menopausal status documented as at least 1 year since last menstrual period.
Exclusion criteria
* Females Only: Currently pregnant, as determined by positive β-human choriogonadotropin (HCG) test, breast-feeding. * Evidence of clinically significant neurologic, cardiac, pulmonary, hepatic, rheumatologic, autoimmune, or renal disease by history, physical examination, and/or laboratory studies. * Behavioral, cognitive, or psychiatric disease that in the opinion of the investigator affects the ability of the subject to understand and cooperate with the requirements of the study protocol. * Screening laboratory values of Grade 1 or above for absolute neutrophil count (ANC), alanine aminotransferase (ALT), and serum creatinine, as defined in this protocol. * Any other condition that in the opinion of the investigator would jeopardize the safety or rights of a subject participating in the trial or would render the subject unable to comply with the protocol. * Any significant alcohol or drug abuse in the past 12 months that has caused medical, occupational, or family problems, as indicated by subject history. * History of a severe allergic reaction or anaphylaxis. * Severe asthma (emergency room visit or hospitalization within the last 6 months). * HIV infection, by screening and confirmatory assays. * Hepatitis C virus (HCV) infection, by screening and confirmatory assays. * Hepatitis B virus (HBV) infection, by hepatitis B surface antigen (HBsAg) screening. * Any known immunodeficiency syndrome. * Current use of anticoagulant medications (this does not include anti-platelet medication such as aspirin or non-steroidal anti-inflammatory medications). * Use of corticosteroids (excluding topical or nasal) or immunosuppressive drugs within 28 days prior to or following vaccination. Immunosuppressive dose of corticosteroids is defined as greater than or equal to 10 mg prednisone equivalent per day for greater than or equal to 14 days. * Receipt of a live vaccine within 28 days or a killed vaccine within the 14 days prior to vaccination or anticipated receipt of any vaccine during the 28 days following vaccination. * Asplenia. * Receipt of blood products within the past 6 months, including transfusions or immunoglobulin or anticipated receipt of any blood products or immunoglobulin during the 28 days following vaccination. * History or serologic evidence of previous dengue virus infection or other flavivirus infection (e.g., yellow fever virus, St. Louis encephalitis virus, West Nile virus). Subjects will also be screened for Zika virus if they have traveled in the past 18 months to areas of South & Central America that have reported Zika-virus transmission (per Centers for Disease Control and Prevention \[CDC\] Zika travel information). * Previous receipt of a flavivirus vaccine (licensed or experimental). * Anticipated receipt of any investigational agent in the 28 days before or after vaccination. * Subject has definite plans to travel to a dengue endemic area during the study. * Refusal to allow storage of specimens for future research. Inclusion Criteria for Second Vaccine: * Good general health as determined by physical examination and review of medical history. * Available for the duration of the study, approximately 26 weeks after the second dose. * Willingness to participate in the study as evidenced by signing the informed consent document. * Females Only: Female subjects of childbearing potential willing to use effective contraception for the duration of the trial. Reliable methods of contraception include: hormonal birth control, condoms with spermicide, diaphragm with spermicide, surgical sterilization, intrauterine device, and abstinence (greater than or equal to 6 months since last sexual encounter). All female subjects will be considered having child-bearing potential except for those with hysterectomy, tubal ligation, tubal coil (at least 3 months prior to vaccination), or post-menopausal status documented as at least 1 year since last menstrual period.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Frequency of TV005 and rDEN3Δ30-related adverse events (AEs) | Measured through Day 360 | As classified by both severity and seriousness, through active and passive surveillance |
| Frequency of viremia | Measured through Day 360 | — |
Countries
United States
Outcome results
None listed