NCT00350337

Brief Summary

This descriptive study will evaluate the safety and immunogenicity of 3 different formulations of the WRAIR dengue vaccine compared to a placebo.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
86

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Apr 2006

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 5, 2006

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

July 6, 2006

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 10, 2006

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 20, 2007

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 13, 2008

Completed
10.6 years until next milestone

Results Posted

Study results publicly available

October 26, 2018

Completed
Last Updated

February 12, 2021

Status Verified

February 1, 2021

Enrollment Period

1.2 years

First QC Date

July 6, 2006

Results QC Date

June 6, 2011

Last Update Submit

February 10, 2021

Conditions

Outcome Measures

Primary Outcomes (3)

  • N Antibody, Geometric Mean Titer(GMT) to Dengue Serotypes 1, 2, 3 and 4

    GMTs for DEN neut. antibodies -unprimed subjects (primary and booster ATP Cohort for immunogenicity) PRE = Pre dose PI(M1) = Post dose 1, month 1 PII(M7) = Post dose 2, month 7 PRE III = Pre dose 3 PIII(M1) = Post dose 3, month 1

    Pre dose 1, 1 month post dose 1, 7 months post dose 2, Pre dose 3 and 1 month post dose 3

  • Percentage of Subjects Seropositive for Dengue Serotypes 1, 2, 3 and 4

    Serpositivity rates for DEN neut. antibodies -unprimed subjects (primary and booster ATP Cohort for immunogenicity) PRE = Pre dose PI(M1) = Post dose 1, month 1 PII(M7) = Post dose 2, month 7 PRE III = Pre dose 3 PIII(M1) = Post dose 3, month 1

    Pre dose 1, 1 month post dose 1, 7 months post dose 2, Pre dose 3 and 1 month post dose 3

  • Occurrence of Any, and Grade 3 Solicited Adverse Events (AEs) Within 21 Days Follow-up After Dose 1 of Study Vaccine

    Diary cards, digital thermometers, and small rulers were provided to subjects to record local and general solicited symptoms(pain, redness and swelling at the injection site, fatigue, headache, pain behind the eyes, abdominal pain, nausea, vomiting, muscle aches, joint aches, rash, photophobia and pruritis) and oral temperature taken daily for 21 days (days 0 through 20). The observations were to be recorded each evening and account for the previous 24 hours. If multiple temperature measurements were taken throughout the day, the maximum temperature was to be recorded.

    21 days following 1st vaccination dose

Secondary Outcomes (8)

  • Occurrence of Any, and Grade 3 Solicited Adverse Events (AEs) Within 21 Days Follow-up After Dose 2 of Study Vaccine;

    within 21 days after vaccination

  • Unsolicited Adverse Events Within 31 Days After Each Dose of Study Vaccine Dose

    within 31 days of study vaccine

  • Occurrence of Serious Adverse Events (SAEs) Throughout the Entire Study Period.

    Days 0 to 270

  • Occurrence of Abnormal Findings at Physical Examination After Each Vaccine Dose

    throughout the 202 day study

  • Percentage of Subjects With Suspected and Confirmed Dengue Reported During the 31-day Post-vaccination Period (Total Vaccinated Cohort)

    Days 0-30 post vaccination periods (total vaccinated cohort)

  • +3 more secondary outcomes

Study Arms (4)

Pre-transfection F17

EXPERIMENTAL

4 monovalent vaccine lots: DEN type 1 45AZ5 PDK-27, Lot 1-1-90 DEN type 2 S16803 PDK-50, Lot 1-1-90 DEN type 3 CH53489 PDK-20 DEN type 4 341750 PDK-6, Lot 1-1-90 in 50% EMEM stabilizer, streptomycin, neomycin and vegetable-derived carbohydrates and amino acids stabilizers for injection. Freeze-dried monovalent dengue vaccines were rehydrated with sterile water for injection diluted to match viral concentration of the F17 Post vaccine

Biological: Pre-transfection F17

Post-transfection F17

EXPERIMENTAL

4 monovalent vaccine lots: DEN type 1: 4.9 log10 FFU/mL DEN type 2 : 5.3 log10 FFU/mL DEN type 3: 4.7 log10 FFU/mL DEN type 4: 5.0 log10 FFU/mL in 50% EMEM stabilizer, streptomycin, neomycin and vegetable-derived carbohydrates and amino acids stabilizers for injection. Lyophilized, single dose vials and sterile water for injection

Biological: Post-transfection F17

Post-transfection F19

EXPERIMENTAL

4 monovalent vaccine lots: DEN type 1: 4.9 log10 FFU/mL DEN type 2: 5.2 log10 FFU/mL DEN type 3: 4.6 log10 FFU/mL DEN type 4: 4.4 log10 FFU/mL (1:10 dilution) in 50% EMEM-stabilizer, streptomycin, neomycin and vegetable-derived carbohydrates and amino acids stabilizers for injection. Lyophilized, single dose vials and sterile water for injection

Biological: Post-transfection F19

Placebo

PLACEBO COMPARATOR

A sterile solution of the same EMEM, with phenol red (1:1) and the same virus stabilizer contained in the vaccine. The phenol red dye (phenolsulfonphthalein) is an FDA-accepted vaccine excipient used in vaccines as a pH indicator. The placebo was identical in appearance to the dengue vaccine.

Other: Placebo

Interventions

Dengue tetravalent Vaccine F17 Pre transfection: 0.5 mL volume per dose, administered at 0 and 6 months via subcutaneous injection

Pre-transfection F17

Dengue tetravalent Vaccine F17 Post transfection: 0.5 mL volume per dose, administered at 0 and 6 months via subcutaneous injection. For the booster phase of the study, a booster dose was administered at five months to one year following the second dose.

Post-transfection F17

Dengue tetravalent Vaccine F19 Post transfection: 0.5 mL volume per dose, administered at 0 and 6 months via subcutaneous injection. For the booster phase of the study, a booster dose was administered at five months to one year following the second dose.

Post-transfection F19
PlaceboOTHER

Sterile solution of buffered water (0.9% NaCl), U.S. FDA accepted vaccine excipient, phenol red dye(phenolsulfonphthalein, used in vaccines as a pH indicator); 0.5 mL volume per dose, administered at 0 and 6 months via subcutaneous injection

Placebo

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • A healthy male or female adult 18-45 years at the time of vaccination;
  • Free of obvious health problems as established by medical history and physical examination before entering into the study;
  • Written informed consent obtained from the subject;
  • Able to read the Subject Information Sheet and Consent Form;
  • Subjects who the investigator believes can and will comply with the requirements of the protocol (e.g., completion of the diary cards, return for follow-up visits) should be enrolled in the study;
  • If the subject is female, she must be of non-childbearing potential, i.e. either surgically sterilized or one year post-menopausal; or, if of childbearing potential, she must be abstinent or have used adequate contraceptive precautions (i.e. intrauterine contraceptive device; oral contraceptives or other equivalent hormonal contraception, e.g. progestin implantable, cutaneous hormonal patch or injectable contraceptives) for 30 days prior to vaccination, have a negative pregnancy test within 48 hours prior to vaccination and must agree to continue such precautions for 60 days after completion of the vaccination series.

You may not qualify if:

  • Pregnant or lactating female;
  • Female planning to become pregnant or planning to discontinue abstinence or contraceptive precautions;
  • History of any neurological or behavioral disorder or seizures, with the exception of a single febrile seizure in childhood;
  • History of drug abuse or alcohol consumption (more than 2 drinks per day);
  • History of allergic disease/reaction likely to be exacerbated by any component of the vaccine;
  • History of urticaria related to mosquito bites requiring medical attention;
  • Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic, renal, hematologic or endocrine functional defect, as determined by physical examination or laboratory tests;
  • Any confirmed or suspected immunosuppressive or immunodeficient condition;
  • Subject seropositive for HBsAg, anti-HCV or anti-HIV;
  • Acute disease at the time of enrollment (acute disease is defined as the presence of a moderate or severe illness with or without fever);
  • (Vaccine can be administered to persons with a minor illness such as diarrhea, mild upper respiratory infection with or without low-grade febrile illness, i.e., oral temperature \<37.5°C/\<99.5°F.)
  • Chronic hepatomegaly, right upper quadrant abdominal pain or tenderness;
  • Chronic splenomegaly, left upper quadrant abdominal pain or tenderness;
  • Use of any investigational or non-registered drug or vaccine other than the study vaccine within 30 days preceding the study vaccine (includes placebo) or planned use during the study period;
  • Planned administration of a vaccine not foreseen by the study protocol during the period starting from 30 days before each dose of the study vaccine and ending 30 days after;
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Walter Reed Army Institute of Research

Silver Spring, Maryland, 20910, United States

Location

Related Publications (1)

  • Thomas SJ, Eckels KH, Carletti I, De La Barrera R, Dessy F, Fernandez S, Putnak R, Toussaint JF, Sun W, Bauer K, Gibbons RV, Innis BL. A phase II, randomized, safety and immunogenicity study of a re-derived, live-attenuated dengue virus vaccine in healthy adults. Am J Trop Med Hyg. 2013 Jan;88(1):73-88. doi: 10.4269/ajtmh.2012.12-0361. Epub 2012 Dec 3.

MeSH Terms

Conditions

Dengue

Condition Hierarchy (Ancestors)

Mosquito-Borne DiseasesVector Borne DiseasesInfectionsArbovirus InfectionsVirus DiseasesFlavivirus InfectionsFlaviviridae InfectionsRNA Virus InfectionsHemorrhagic Fevers, Viral

Results Point of Contact

Title
Division of Regulated Activities and Compliance Director
Organization
United States Army Medical Materiel Development Activity

Study Officials

  • Stephen J Thomas, MD, FACP

    Walter Reed Army Institute of Research (WRAIR)

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
FED
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 6, 2006

First Posted

July 10, 2006

Study Start

April 5, 2006

Primary Completion

June 20, 2007

Study Completion

March 13, 2008

Last Updated

February 12, 2021

Results First Posted

October 26, 2018

Record last verified: 2021-02

Locations