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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01502358
Other study ID # S-11-0007
Secondary ID WRAIR #1839NMRC
Status Completed
Phase Phase 1
First received December 15, 2011
Last updated November 3, 2016
Start date December 2011
Est. completion date December 2013

Study information

Verified date April 2015
Source U.S. Army Medical Research and Materiel Command
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

The purpose of this study is to determine whether a new investigational dengue vaccine is safe, well-tolerated, and to see if an immune response against dengue disease will be generated.


Description:

Arguably the need for a tetravalent dengue vaccine that will effectively induce immunity against all four dengue serotypes has never been greater. Currently, several different approaches are being taken to develop a protective tetravalent dengue vaccine. These include live-attenuated vaccines derived by serial passage in tissue culture, live chimeric vaccines, recombinant protein vaccines and DNA vaccines. While live attenuated and live chimeric vaccines have shown promise in clinical trials, viral competition with suspected immune interference resulting in imbalanced immune responses and reactogenicity with the occurrence of dengue like symptoms remains a concern. It is imperative that any candidate vaccine produce solid immunity against each of the four dengue virus serotypes. Failure to do so may place the recipient of the vaccine at risk for developing severe dengue disease (dengue hemorrhagic fever/dengue shock syndrome) following exposure to the virus serotype to which there was incomplete protective immunity, resulting in antibody dependent enhancement due to the presence of non-neutralizing anti-dengue antibodies.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date December 2013
Est. primary completion date December 2013
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years to 50 Years
Eligibility Inclusion Criteria:

- Male or female age 18 to 50 (inclusive) years old at the time of enrollment

- Have negative anti-dengue, Japanese encephalitis, West Nile, and yellow fever ELISA serological tests

- Be informed of the nature of the study and provide written informed consent

- If the subject is of child-producing potential, he/she agrees to practice adequate birth control or abstain from sex

- Have access to the WRAIR Clinical Trials for at least 270 days, and be willing to refrain from participation in other investigational clinical trials

- Be in good general health

Exclusion Criteria-Subjects meeting any of the following criteria will be excluded from the study:

- History of Flavivirus infection or history of Flavivirus vaccine (experimental or licensed product) including Japanese encephalitis, yellow fever, and dengue

- Have a known or suspected hypersensitivity or adverse reaction to vaccines including anaphylaxis and related symptoms such as hives, respiratory difficulty, angioedema, and/or abdominal pain

- Have received a live-attenuated vaccine within 42 days prior to the initial injection on Day 0 or a subunit or killed vaccine within 30 days of the initial injection on Day 0

- Have a positive screen for hepatitis B surface antigen (HBsAg), hepatitis C antibody, or HIV antibody

- Are pregnant or breastfeeding

- Have donated or received blood, blood products, or plasma within 30 days prior to Day 0

- Have any acute illness, including an oral body temperature >100.4°F, within 7 days before the initial injection on Day 0

- Have a past or current history of malignant disease except for adequately treated skin cancer

- Exclusions include but are not limited to conditions pertaining to or evidence of immunodeficiency; allergies requiring treatment with antigen injections; autoimmune disease; severe migraine headaches; unstable asthma; clinically significant cardiac arrhythmias, diabetes mellitus, thyroid disease, a bleeding disorder or a seizure disorder.

- Have participated in an investigational drug, vaccine, or device study within a period of 30 days prior to Day 0;

- History of splenectomy

- Planned travel to dengue endemic areas during the study period

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention


Related Conditions & MeSH terms


Intervention

Biological:
Tetravalent Dengue Vaccine (TVDV)
Low dose delivered intramuscularly on Study Days 0, 30 and 90
Tetravalent Dengue Vaccine (TVDV) with Vaxfectin® (low-dose)
Low dose: TVDV formulated with Vaxfectin®; 1.0 mL volume delivered intramuscularly on Study Days 0, 30 and 90
Tetravalent Dengue Vaccine TVDV with Vaxfectin® (High Dose)
High dose: TVDV formulated with Vaxfectin®; 1.0 mL volume delivered intramuscularly on Study Days 0, 30 and 90

Locations

Country Name City State
United States Walter Reed Army Institute of Research and Clinical Trial Center (WRAIR CTC) Silver Spring Maryland

Sponsors (4)

Lead Sponsor Collaborator
U.S. Army Medical Research and Materiel Command Naval Medical Research Center, Vical, Walter Reed Army Institute of Research (WRAIR)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of participants with adverse events (AEs) or serious adverse events (SAEs) All AEs and SAEs will be recorded during the entire duration of the study, or up to 360 days. Up to Day 360 Yes
Secondary Percent of subjects (in each group) achieving tetravalent ELISA IgM seroconversion From date of first vaccine dose until seroconversion is achieved, up to 360 days. Days 0-360 No
Secondary Percent of subjects (in each group) achieving tetravalent seroconversion, by dengue plaque reduction MN50 titer From date of first vaccine dose until seroconversion is achieved, up to 360 days. Days 0-360 No
Secondary MN50 titer 1 month (Study Day 120) and Study Days 180 and 270 after vaccine regimen is complete Following completion of study days 120 and 180 and 270 days after vaccine regimen is complete No
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