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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01943825
Other study ID # CYD56
Secondary ID U1111-1143-8391
Status Completed
Phase Phase 2
First received
Last updated
Start date November 5, 2013
Est. completion date November 25, 2015

Study information

Verified date March 2022
Source Sanofi
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The aim of the study was to evaluate a compressed dosing schedule and the immunologic effects of co-administration of a CYD dengue vaccine with a licensed flavivirus (FV) with Japanese encephalitis (JE) vaccine. Primary Objectives: - To describe and compare the humoral immune response to each of the 4 parental dengue virus serotypes at baseline and 28 days after each CYD dengue vaccine dose. - To describe the persistence of the humoral immune response to each of the 4 parental dengue virus serotypes 6 after CYD dengue vaccine Dose 3, irrespective of whether or not JE vaccine had been previously administered. Secondary Objectives: - To describe the safety profile after each injection of CYD dengue vaccine. - To describe the humoral immune response to each of the 4 parental dengue virus serotypes at baseline and 28 days after each CYD dengue vaccine dose when administered with or after JE virus vaccine in Groups 3 and 4. - To describe the persistence of the humoral immune response to each of the 4 parental dengue virus serotypes at 6 months post-dose 3 in all four groups and at 12 months post-dose 3 in Groups 1 and 3 with the compressed schedule. - To determine the level of viremia on Day (D)0, D3, D5, D7 and D14 following each CYD vaccine dose administered in Groups 1-4. - To describe the JE humoral immune response at baseline and 28 days after each injection of CYD dengue vaccine in Groups 3 and 4.


Description:

Study participants were randomly assigned to one of the four groups to receive assigned study vaccine and were evaluated for neutralizing antibody titers; markers of cell-mediated immunity.


Recruitment information / eligibility

Status Completed
Enrollment 90
Est. completion date November 25, 2015
Est. primary completion date November 25, 2015
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 45 Years
Eligibility Inclusion Criteria: - Aged greater than or equal to (>=)18 to less than or equal to (<=) 45 years on the day of inclusion. - Informed consent form had been signed and dated. - Able to attend all scheduled visits and complied with all trial procedures. - Participant was in good health, based on medical history and physical examination. Exclusion Criteria: - Participant was pregnant, or lactating, or of childbearing potential (were considered of non-childbearing potential, a female had to be post- menopausal for at least 1 year, surgically sterile, or used an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination and until at least 4 weeks after the last vaccination). - Participation in the 4 weeks preceding the first trial vaccination, or planned participation during the present trial period, in another clinical trial investigating a vaccine, drug, medical device, or medical procedure. - Receipt or planned receipt of any vaccine, outside the study protocol in the 4 weeks preceded or followed trial vaccinations. (If influenza activity warranted vaccination of healthy young adults, influenza vaccination was encouraged and did not lead to study exclusion). - Any history of FV vaccination, or planned FV vaccination during the trial period. - Previous residence (greater than [>]12 months) in, or travel in the last 30 days to dengue endemic regions. - Receipt of immune globulins, blood or blood-derived products in the 3 months prior to first vaccination or planned use during the study period. - Known or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceded 6 months; or long-term systemic corticosteroid therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) - Known systemic hypersensitivity to any of the vaccine components (including protamine sulfate), or history of a life-threatening reaction to the vaccine(s) used in the trial or to a vaccine containing any of the same substances, including dry natural latex. - Deprived of freedom by an administrative or court order, or in an emergency setting, or hospitalized involuntarily. - Excessive alcohol consumption or drug addiction. - Chronic illness that, in the opinion of the Investigator, was at a stage where it might interfere with trial conduct or completion. - Identified as an employee of the Investigator or study center, with direct involvement in the proposed study or other studies under the direction of that Investigator or study center, as well as family members (i.e., immediate, husband, wife and their children, adopted or natural) of the employee or the Investigator. - Temporary Exclusion Criteria: Moderate or severe acute illness/infection (according to Investigator judgment) on the day of vaccination or febrile illness (temperature >= 38.0 degree Celsius [>= 100.4 degree fahrenheit]). A prospective participant was not included in the study until the condition had resolved or the febrile event had subsided. If the delay for the febrile illness exceeded the window between screening and vaccination, or if deemed necessary by the Investigator, a prospective participant might be re-screened once the fever had resolved.

Study Design


Intervention

Biological:
CYD Dengue Vaccine
0.5 mL, Subcutaneous
CYD Dengue Vaccine
0.5 mL, Subcutaneous
Japanese Encephalitis Vaccine
0.5 mL, Intramuscular
Japanese Encephalitis Vaccine
0.5 mL, Intramuscular

Locations

Country Name City State
n/a

Sponsors (2)

Lead Sponsor Collaborator
Sanofi Pasteur, a Sanofi Company United States Department of Defense

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Geometric Means Titers (GMTs) of Antibodies Against Each Dengue Virus Serotype Strains GMTs of antibodies against each dengue virus serotype (parental strains 1, 2, 3 and 4) were measured by plaque reduction neutralization test (PRNT). The lower limit of quantitation (LLOQ) of the assay was a titer of 10 (1/dilution). Pre-injection 1, 2 and 3; 28 days post-injection 1, 2 and 3; and 6 months post-injection 3
Primary Number of Participants With Antibody Titers Greater Than or Equal to (>=)10 (1/Dilution) Against Each Dengue Virus Serotype Strains Antibody titers against each dengue virus serotype (parental strains 1, 2, 3 and 4) were measured by PRNT. Pre-injection 1, 2 and 3; 28 days post-injection 1, 2 and 3; and 6 months post-injection 3
Secondary Geometric Means Titers of Antibodies Against Each Dengue Virus Serotype Strains in Participants Who Received Japanese Encephalitis Vaccine - Groups 3 and 4 GMTs of antibodies against each dengue virus serotype (parental strains 1, 2, 3 and 4) were measured by PRNT. The LLOQ of the assay was a titer of 10 (1/dilution). Pre-injection 1, 2 and 3, and 28 days post-injection 1, 2 and 3
Secondary Geometric Means Titers of Antibodies Against Each Dengue Virus Serotype Strains GMTs of antibodies against each dengue virus serotype (parental strains 1, 2, 3 and 4) were measured by PRNT. 6 months and 12 months post-injection 3
Secondary Number of Participants With Detectable Non Serotype-Specific Vaccine Viremia Viremia was determined by reverse transcriptase (RT) polymerase chain reaction (PCR) using primer/probes specific to a non serotype-specific part of the dengue vaccine. 3, 5, 7 and 14 days post-injection 1, 2 and 3
Secondary Number of Participants With Detectable Serotype-Specific Vaccine Viremia Viremia was determined by RT PCR using primer/probes specific to each dengue vaccine serotypes. 3, 5, 7 and 14 days post-injection 1; 3 and 14 days post-injection 2 and 7 days post-injection 3
Secondary Geometric Means Titers of Antibodies Against Japanese Encephalitis - Groups 3 and 4 GMTs of antibodies against JE were measured by JE micro neutralization assay. The LLOQ of the assay was a titer of 10 (1/dilution). Pre-injection 1, and 28 days post-injection 1, 2 and 3
Secondary Number of Participants With Solicited Injection Site Reactions A solicited reaction was defined as an adverse reaction observed and reported under the conditions (symptom and onset) pre-listed (i.e., solicited) in the electronic case report form (eCRF) and considered as related to vaccination. Solicited injection site reactions: pain, erythema, and swelling. Within 7 days after any CYD dengue vaccine and/or JE vaccine
Secondary Number of Participants With Solicited Systemic Reactions A solicited reaction was defined as an adverse reaction observed and reported under the conditions (symptom and onset) pre-listed (i.e., solicited) in the eCRF and considered as related to vaccination. Solicited systemic reactions: fever, headache, malaise, myalgia, and asthenia. Within 14 days after any CYD dengue vaccine and/or JE vaccine
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