CClinicalTrials.gg
CompletedNCT00239577Updated Feb 19, 2019Results posted

A Trial of a Walter Reed Army Institute of Research (WRAIR) Live Attenuated Virus Tetravalent Dengue Vaccine in Healthy US Adults

A Phase 2 interventional study of Live attenuated tetravalent dengue vaccine and Placebo in Dengue, sponsored by GlaxoSmithKline. Completed at 1 site in United States. Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-02-19.

Sponsored by GlaxoSmithKline · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
86
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
All
01

Study summary

This descriptive study will evaluate the safety and immunogenicity of 5 different formulations of the WRAIR dengue vaccine compared to a placebo.

Read the detailed description

Subjects will be randomized into one of 6 groups. One group will receive a placebo vaccine and the others will receive one of 5 different dengue vaccine formations. Each subject will receive two doses six months apart. Study subjects who elect to participate in a mosquito transmissibility component of the study will undergo mosquito feedings during each of the two assigned follow-up visits after vaccine dose 1. All subjects will have 11 venipunctures during 11 visits (i.e., screening plus 10 study visits) over a period of nine months.

02

Conditions studied

  • Dengue

Browse trials for

Keywords

  • Dengue infection
03

In context

Dengue

279 studies on the registry are indexed under Dengue; 45 are open to participants now.

This study's enrollment of 86 is below the median of 123 across 195 interventional studies indexed under Dengue.

Browse Dengue studies →

Lead sponsor

GlaxoSmithKline is the lead sponsor of 3,562 studies on the registry; 117 are open to participants now.

Of its 258 completed or terminated interventional studies of FDA-regulated products, 232 (90%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • 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
  • Females must be of non-childbearing potential, or, if of childbearing potential, she must be abstinent or have used adequate contraceptive precautions as defined in the protocol 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

Exclusion criteria

Exclusion:

History of:

  • recurrent migraine headache
  • any neurological or behavioral disorder or seizures
  • drug abuse or alcohol consumption (more than 2 drinks per day)
  • allergic disease/reaction likely to be exacerbated by vaccine
  • urticaria related to mosquito bites requiring medical attention
  • Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic, renal, hematologic or endocrine functional defect
  • Any confirmed or suspected immunosuppressive or immunodeficient condition;
  • Seropositive for HBsAg, anti-HCV or anti-HIV
  • Acute disease at the time of enrollment
  • Chronic hepatomegaly or splenomegaly
  • Use of any investigational or non-registered drug or vaccine within 30 days preceding study or planned use
  • Planned administration of a vaccine not foreseen by the study protocol 30 days ±each vaccine dose
  • Planned move during study
  • Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs or administration of immunoglobulins and/or blood products, within 90 days preceding the first dose or planned administration during the study period
  • Any chronic systemic drug therapy to be continued during the study period
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Enrollment
86 participants (actual)

Study arms

  • Experimental
    DENGUE FORMULATION 17A GROUP

    Healthy male or female subjects, between and including 18-45 years of age, who received two doses of Dengue vaccine Formulation 17a, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6.

    Biological: Live attenuated tetravalent dengue vaccine

  • Experimental
    DENGUE FORMULATION 17B GROUP

    Healthy male or female subjects, between and including 18-45 years of age, who received two primary doses of Dengue vaccine Formulation 17b, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6, and one booster dose approximately 5-12 months after the second dose.

    Biological: Live attenuated tetravalent dengue vaccine

  • Experimental
    DENGUE FORMULATION 19 GROUP

    Healthy male or female subjects, between and including 18-45 years of age, who received two primary doses of Dengue vaccine Formulation 19, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6 and one booster dose approximately 5-12 months after the second dose.

    Biological: Live attenuated tetravalent dengue vaccine

  • Placebo comparator
    PLACEBO GROUP

    Healthy male or female subjects, between and including 18-45 years of age, who received two doses of Placebo, administered subcutaneously into the upper-outer triceps/deltoid area of the non-dominant arm, at Months 0 and 6.

    Biological: Placebo

Interventions

  • BiologicalLive attenuated tetravalent dengue vaccine

    Live attenuated tetravalent dengue vaccine

  • BiologicalPlacebo

    Placebo

06

What researchers measure

Primary outcomes

  1. Number of Subjects With Any and Grade 3 Solicited Local Symptoms

    Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

    Time frame: During the 21-day (Days 0-20) follow-up after Dose 1 of the study vaccine

  2. Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms

    Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

    Time frame: During the 21-day (Days 0-20) follow-up after Dose 1 of the study vaccine

  3. Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4

    Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum.

    Time frame: At 30 days (Month 7) after Dose 2 of the study vaccine

  4. Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4 Based on Priming Status

    Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum. Not primed = Not primed by MN50; Primed = Primed by MN50. Primed subject is a subject with neutralizing antibody titer ≥ 10 ED50 at pre-vaccination for at least one DEN type. Not primed subject is a subject with neutralizing antibody titer \<10 ED50 for any DEN type at pre-vaccination.

    Time frame: At 5 to 12 months post-Dose 2 of the study vaccine

  5. Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4 Based on Priming Status

    Titers for DEN 1, DEN 2, DEN 3 and DEN 4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum. Not primed = Not primed by MN50; Primed = Primed by MN50. Primed subject is a subject with neutralizing antibody titer ≥ 10 ED50 at pre-vaccination for at least one DEN type. Not primed subject is a subject with neutralizing antibody titer \<10 ED50 for any DEN type at pre-vaccination.

    Time frame: At Month 1 post-booster dose of the study vaccine

Secondary outcomes

  1. Number of Subjects With Any and Grade 3 Solicited Local Symptoms

    Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

    Time frame: During the 21-day (Days 0-20) follow-up after Dose 2 of the study vaccine

  2. Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms

    Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

    Time frame: During the 21-day (Days 0-20) follow-up after Dose 2 of the study vaccine

  3. Number of Subjects With Any and Grade 3 Solicited Local Symptoms

    Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

    Time frame: During the 21-day (Days 0-20) follow-up after each dose of the study vaccine

  4. Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms

    Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

    Time frame: During the 21-day (Days 0-20) follow-up after each dose of the study vaccine

  5. Number of Subjects With Unsolicited Adverse Events (AEs)

    An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

    Time frame: During the 31-day (Days 0-30) follow-up after any study vaccine dose

  6. Number of Subjects With Serious Adverse Events (SAEs)

    SAEs assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

    Time frame: During the whole primary phase of the study (from Day 0 up to Month 9)

  7. Number of Subjects With Alert Values for Safety Laboratory Determinations

    Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet).

    Time frame: During the 31-day (Days 0-30) follow-up after each vaccine dose (Month 1 and Month 7)

  8. Number of Subjects With Abnormal Findings at Dengue Physical Examination

    The abnormal findings at Dengue physical examination included: Rash, Generalized Rash, Skin Hemorrhage, Conjunctival Hemorrhage, Conjunctival Injection, Mucosal Hemorrhage, Lymphadenopathy, Generalized Lymphadenopathy, Hepatomegaly and Splenomegaly. Rash involved \< 50% of the body surface; Generalized rash involved at least 50% of the body surface. Generalized lymphadenopathy was defined as palpable lymph nodes in four or more of the following locations: cervical, axillary, inguinal or other, with right and left sides considered as separate locations.

    Time frame: During the 31-day (Days 0-30) follow-up after each vaccine dose and across doses

  9. Number of Subjects With Suspected and Confirmed Dengue

    The number of subjects with suspected and confirmed Dengue post-vaccination.

    Time frame: During the 31-day (Days 0-30) follow-up after each vaccine dose and across doses

  10. Number of Subjects With Measurable Dengue Viremia

    The number of subjects with measurable dengue viremia at specified timepoints. Negative = Genome equivalent (GEQ)/µL result is equal to zero; Undetermined = GEQ/µL result is below limit of detection (LOD); Positive = GEQ/µL result is ≥ LOD.

    Time frame: During the 31-day (Days 0-30) follow-up after each vaccine dose

  11. Number of Subjects With Safety Laboratory Determinations Outside the Normal Ranges

    Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet). Below = value below the laboratory reference range defined for the specified visit and laboratory parameter; Above = value above the laboratory reference range defined for the specified visit and laboratory parameter.

    Time frame: During the 31-day (Days 0-30) follow-up after each vaccine dose (Month 1 and Month 7)

  12. Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4

    Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum.

    Time frame: At Month 0 and Month 1

  13. Number of Subjects With Antibody Titers Above the Assay Cut-off Value for Each DEN Serotype

    Assay cut-off values were greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum.

    Time frame: At Months 0, 1 and 7

  14. Number of Subjects With Antibody Titers Above the Assay Cut-off Value (Tetravalent Response) for All Dengue Serotypes

    The antibody titers and pre-vaccination status were determined by MN50 with a cut-off value equal to 1:10.

    Time frame: At Months 1 and 7

  15. Number of Subjects With Sero-response to Each DEN Type

    Sero-response defined as: For initially seronegative subjects (antibody titer \< 10 ED50 for neutralizing antibodies to DEN 1, DEN 2, DEN 3, DEN 4 prior to vaccination), antibody titer ≥ 10 ED50 at post-vaccination; For initially seropositive subjects (antibody titer ≥ 10 ED50 for neutralizing antibodies to DEN 1, DEN 2, DEN 3, DEN 4 prior to vaccination), antibody titer at post-vaccination ≥ 4 fold the pre-vaccination antibody titer.

    Time frame: At Months 1 and 7

  16. Number of Subjects With Any and Grade 3 Solicited Local Symptoms

    Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

    Time frame: During the 21-day (Days 0-20) follow-up after the study vaccine booster dose

  17. Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms

    Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as oral temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = oral fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

    Time frame: During the 21-day (Days 0-20) follow-up after the study vaccine booster dose

  18. Number of Subjects With Any, Grade 3 and Related Unsolicited AEs

    An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

    Time frame: During the 31-day (Days 0-30) follow-up after the study vaccine booster dose

  19. Number of Subjects With SAEs

    SAEs assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

    Time frame: During the whole booster phase of the study (from pre-vaccination up to Month 6 post-vaccination with the booster dose)

  20. Number of Subjects With Hematological and Biochemical Determinations Within and Outside the Normal Ranges

    Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet). Below = value below the laboratory reference range defined for the specified visit and laboratory parameter; Within = value within the laboratory reference range defined for the specified visit and laboratory parameter; Above = value above the laboratory reference range defined for the specified visit and laboratory parameter. Note: No blood sample was taken for these laboratory tests at Month 6 post-booster vaccination.

    Time frame: At each booster phase visit [pre-booster vaccination (PRE), study Visit 12 post-booster vaccination (Days 2, 5, 8 or 12) (FU1), study Visit 13 post-booster vaccination (Days 5, 8, 12 or 14) (FU2) and at Months 1 and 6 post-booster vaccination]

  21. Number of Subjects With Alert Values for Safety Laboratory Determinations

    Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet).

    Time frame: During the 31-day (Days 0-30) follow-up after the study vaccine booster dose

  22. Number of Subjects With Abnormal Findings at Dengue Physical Examination

    The abnormal findings at Dengue physical examination included: Conjunctival hemorrhage, Conjunctival injection, Generalized lymphadenopathy, Generalized rash, Hepatomegaly, Lymphadenopathy, Mucosal hemorrhage, Rash, Skin hemorrhage and Splenomegaly. Rash involved \< 50% of the body surface; Generalized rash involved at least 50% of the body surface. Generalized lymphadenopathy was defined as palpable lymph nodes in four or more of the following locations: cervical, axillary, inguinal or other, with right and left sides considered as separate locations. Note: Results only available during the 31-day follow-up period (Month 1) after the booster dose, instead of at each booster phase visit \[pre-vaccination, study Visit 12 post-booster vaccination (Days 2, 5, 8 or 12), Visit 13 post-booster vaccination (Days 5, 8, 12 or 14) and at Months 1 and 6 post-booster vaccination\].

    Time frame: At Month 1 post-booster vaccination

  23. Number of Subjects With Suspected and Confirmed Dengue

    The number of subjects with suspected and confirmed Dengue post-booster vaccination.

    Time frame: During the 31-day (Days 0-30) follow-up after the study vaccine booster dose

  24. Number of Subjects With Measurable Dengue Viremia

    The number of subjects with measurable dengue viremia at specified timepoints.

    Time frame: At study Visit 12 (Days 2, 5, 8 or 12) (FU1), study Visit 13 post-booster vaccination (Days 5, 8, 12 or 14) (FU2) and at study Visit 14 (Month 1 post-booster vaccination)

  25. Number of Subjects With Antibody Titers Above the Assay Cut-off Value for Each DEN Serotype

    Assay cut-off values were greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum. Not primed = Not primed by MN50; Primed = Primed by MN50. Primed subject is a subject with neutralizing antibody titer ≥ 10 ED50 at pre-vaccination for at least one DEN type. Not primed subject is a subject with neutralizing antibody titer \<10 ED50 for any DEN type at pre-vaccination.

    Time frame: Before (PRE) and one month after the booster vaccination (Month 1)

07

Results

Posted Feb 19, 2019

Participant flow

Primary Phase
Participant flow — Primary Phase
MilestoneDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Started22222121
Completed17191821
Not completed5330
Withdrew: Adverse event0010
Withdrew: Other5320
Booster Phase
Participant flow — Booster Phase
MilestoneDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Started09120
Completed09120
Not completed0000

Outcome measures

PrimaryNumber of Subjects With Any and Grade 3 Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

Time frame:
During the 21-day (Days 0-20) follow-up after Dose 1 of the study vaccine
Reported as:
Count of participants · Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Any Pain7245
Grade 3 Pain0001
Any Redness8344
Grade 3 Redness1100
Any Swelling6452
Grade 3 Swelling0111
PrimaryNumber of Subjects With Any, Grade 3 and Related Solicited General Symptoms

Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

Time frame:
During the 21-day (Days 0-20) follow-up after Dose 1 of the study vaccine
Reported as:
Count of participants · Participants
Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Any Abdominal pain0334
Grade 3 Abdominal pain0010
Related Abdominal pain0223
Any Arthralgia5223
Grade 3 Arthralgia0001
Related Arthralgia4222
Any Fatigue8557
Grade 3 Fatigue0011
Related Fatigue5246
Any Fever4221
Grade 3 Fever0001
Related Fever3221
Any Headache12877
Grade 3 Headache0000
Related Headache8535
Any Muscle aches5234
Grade 3 Muscle aches0002
Related Muscle aches3133
Any Nausea5331
Grade 3 Nausea0000
Related Nausea4021
Any Pain behind eyes4452
Grade 3 Pain behind eyes0000
Related Pain behind eyes4342
Any Photophobia3142
Grade 3 Photophobia0001
Related Photophobia3132
Any Pruritus8324
Grade 3 Pruritus0000
Related Pruritus4223
Any Rash4310
Grade 3 Rash0000
Related Rash4310
Any Vomiting2100
Grade 3 Vomiting0000
Related Vomiting1000
PrimaryTiters for DEN Neutralizing Antibodies Types 1, 2, 3 and 4

Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum.

Time frame:
At 30 days (Month 7) after Dose 2 of the study vaccine
Reported as:
Geometric mean · ED50
Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4
ED50Dengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
DEN-1241 (81 to 719)83 (25 to 273)204 (69 to 603)7 (4 to 14)
DEN-2691 (407 to 1175)223 (76 to 656)342 (123 to 954)6 (4 to 10)
DEN-394 (28 to 321)55 (17 to 177)96 (30 to 309)6 (4 to 10)
DEN-4350 (85 to 1439)91 (27 to 305)84 (24 to 294)6 (4 to 8)
PrimaryTiters for DEN Neutralizing Antibodies Types 1, 2, 3 and 4 Based on Priming Status

Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum. Not primed = Not primed by MN50; Primed = Primed by MN50. Primed subject is a subject with neutralizing antibody titer ≥ 10 ED50 at pre-vaccination for at least one DEN type. Not primed subject is a subject with neutralizing antibody titer \<10 ED50 for any DEN type at pre-vaccination.

Time frame:
At 5 to 12 months post-Dose 2 of the study vaccine
Reported as:
Geometric mean · ED50
Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4 Based on Priming Status
ED50Dengue Formulation 17b GroupDengue Formulation 19 Group
DEN-1, Not primed15 (4 to 57)35 (6 to 187)
DEN-1, Primed521 (40 to 6785)2430 (2430 to 2430)
DEN-2, Not primed33 (5 to 203)30 (6 to 158)
DEN-2, Primed346 (0 to 97683203)673 (10 to 46541)
DEN-3, Not primed7 (3 to 20)12 (4 to 38)
DEN-3, Primed426 (0 to 785070000000000)1413 (1165 to 1715)
DEN-4, Not primed29 (2 to 521)23 (3 to 168)
DEN-4, Primed123 (0 to 15158843)766 (1 to 959438)
PrimaryTiters for DEN Neutralizing Antibodies Types 1, 2, 3 and 4 Based on Priming Status

Titers for DEN 1, DEN 2, DEN 3 and DEN 4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum. Not primed = Not primed by MN50; Primed = Primed by MN50. Primed subject is a subject with neutralizing antibody titer ≥ 10 ED50 at pre-vaccination for at least one DEN type. Not primed subject is a subject with neutralizing antibody titer \<10 ED50 for any DEN type at pre-vaccination.

Time frame:
At Month 1 post-booster dose of the study vaccine
Reported as:
Geometric mean · ED50
Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4 Based on Priming Status
ED50Dengue Formulation 17b GroupDengue Formulation 19 Group
DEN-1, Not primed39 (7 to 226)73 (19 to 281)
DEN-1, Primed672 (55 to 8245)2430 (2430 to 2430)
DEN-2, Not primed104 (15 to 720)194 (56 to 675)
DEN-2, Primed909 (3 to 255163)795 (734 to 861)
DEN-3, Not primed34 (5 to 226)19 (5 to 69)
DEN-3, Primed890 (0 to 13080837)1502 (645 to 3498)
DEN-4, Not primed46 (4 to 535)31 (4 to 231)
DEN-4, Primed215 (99 to 463)618 (0 to 2096791)
SecondaryNumber of Subjects With Any and Grade 3 Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

Time frame:
During the 21-day (Days 0-20) follow-up after Dose 2 of the study vaccine
Reported as:
Count of participants · Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Any Pain7112
Grade 3 Pain0000
Any Redness1022
Grade 3 Redness0000
Any Swelling1001
Grade 3 Swelling0000
SecondaryNumber of Subjects With Any, Grade 3 and Related Solicited General Symptoms

Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

Time frame:
During the 21-day (Days 0-20) follow-up after Dose 2 of the study vaccine
Reported as:
Count of participants · Participants
Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Any Abdominal pain0311
Grade 3 Abdominal pain0000
Related Abdominal pain0201
Any Arthralgia1220
Grade 3 Arthralgia0100
Related Arthralgia1210
Any Fatigue4433
Grade 3 Fatigue0100
Related Fatigue3211
Any Fever1214
Grade 3 Fever0000
Related Fever1202
Any Headache6535
Grade 3 Headache0110
Related Headache3413
Any Muscle aches1410
Grade 3 Muscle aches0100
Related Muscle aches1210
Any Nausea1301
Grade 3 Nausea0000
Related Nausea1201
Any Pain behind eyes1411
Grade 3 Pain behind eyes0000
Related Pain behind eyes0200
Any Photophobia1202
Grade 3 Photophobia0000
Related Photophobia1101
Any Pruritus2011
Grade 3 Pruritus0000
Related Pruritus2011
Any Rash3020
Grade 3 Rash0000
Related Rash3020
Any Vomiting0100
Grade 3 Vomiting0000
Related Vomiting0000
SecondaryNumber of Subjects With Any and Grade 3 Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

Time frame:
During the 21-day (Days 0-20) follow-up after each dose of the study vaccine
Reported as:
Count of participants · Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Any Pain9355
Grade 3 Pain0001
Any Redness8355
Grade 3 Redness1100
Any Swelling7453
Grade 3 Swelling0111
SecondaryNumber of Subjects With Any, Grade 3 and Related Solicited General Symptoms

Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as axillary temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

Time frame:
During the 21-day (Days 0-20) follow-up after each dose of the study vaccine
Reported as:
Count of participants · Participants
Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Any Abdominal pain0544
Grade 3 Abdominal pain0010
Related Abdominal pain0323
Any Arthralgia6433
Grade 3 Arthralgia0101
Related Arthralgia5432
Any Fatigue10867
Grade 3 Fatigue0111
Related Fatigue7356
Any Fever5435
Grade 3 Fever0001
Related Fever4423
Any Headache149109
Grade 3 Headache0110
Related Headache9647
Any Muscle aches6544
Grade 3 Muscle aches0102
Related Muscle aches4343
Any Nausea6432
Grade 3 Nausea0000
Related Nausea5222
Any Pain behind the eyes4753
Grade 3 Pain behind the eyes0000
Related Pain behind the eyes4542
Any Photophobia4344
Grade 3 Photophobia0001
Related Photophobia4233
Any Pruritus9334
Grade 3 Pruritus0000
Related Pruritus6233
Any Rash7330
Grade 3 Rash0000
Related Rash7330
Any Vomiting2200
Grade 3 Vomiting0000
Related Vomiting1000
SecondaryNumber of Subjects With Unsolicited Adverse Events (AEs)

An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

Time frame:
During the 31-day (Days 0-30) follow-up after any study vaccine dose
Reported as:
Count of participants · Participants
Number of Subjects With Unsolicited Adverse Events (AEs)
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Number of Subjects With Unsolicited Adverse Events (AEs)15101512
SecondaryNumber of Subjects With Serious Adverse Events (SAEs)

SAEs assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

Time frame:
During the whole primary phase of the study (from Day 0 up to Month 9)
Reported as:
Count of participants · Participants
Number of Subjects With Serious Adverse Events (SAEs)
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Number of Subjects With Serious Adverse Events (SAEs)0011
SecondaryNumber of Subjects With Alert Values for Safety Laboratory Determinations

Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet).

Time frame:
During the 31-day (Days 0-30) follow-up after each vaccine dose (Month 1 and Month 7)
Reported as:
Count of participants · Participants
Number of Subjects With Alert Values for Safety Laboratory Determinations
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
ALT, Month 10000
ALT, Month 70000
AST, Month 10000
AST, Month 70000
HC, Month 10000
HC, Month 70000
NEU, Month 10000
NEU, Month 70000
Platelet, Month 10000
Platelet, Month 70000
SecondaryNumber of Subjects With Abnormal Findings at Dengue Physical Examination

The abnormal findings at Dengue physical examination included: Rash, Generalized Rash, Skin Hemorrhage, Conjunctival Hemorrhage, Conjunctival Injection, Mucosal Hemorrhage, Lymphadenopathy, Generalized Lymphadenopathy, Hepatomegaly and Splenomegaly. Rash involved \< 50% of the body surface; Generalized rash involved at least 50% of the body surface. Generalized lymphadenopathy was defined as palpable lymph nodes in four or more of the following locations: cervical, axillary, inguinal or other, with right and left sides considered as separate locations.

Time frame:
During the 31-day (Days 0-30) follow-up after each vaccine dose and across doses
Reported as:
Count of participants · Participants
Number of Subjects With Abnormal Findings at Dengue Physical Examination
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Rash, Dose 11010
Generalized Rash, Dose 10010
Skin Hemorrhage, Dose 10001
Conjunctival Hemorrhage, Dose 10000
Conjunctival Injection, Dose 12011
Mucosal Hemorrhage, Dose 12111
Lymphadenopathy, Dose 13343
Generalized Lymphadenopathy,Dose 10101
Hepatomegaly, Dose 12352
Splenomegaly, Dose 10111
Rash, Dose 22120
Generalized Rash, Dose 21010
Skin Hemorrhage, Dose 20000
Conjunctival Hemorrhage, Dose 20001
Conjunctival Injection, Dose 21120
Mucosal Hemorrhage, Dose 20000
Lymphadenopathy, Dose 21353
Generalized Lymphadenopathy,Dose 20000
Hepatomegaly, Dose 21033
Splenomegaly, Dose 20002
Rash, Across3130
Generalized Rash, Across1020
Skin Hemorrhage, Across0001
Conjunctival Hemorrhage, Across0001
Conjunctival Injection, Across2121
Mucosal Hemorrhage, Across2111
Lymphadenopathy, Across4674
Generalized Lymphadenopathy,Across0101
Hepatomegaly, Across2364
Splenomegaly, Across0112
SecondaryNumber of Subjects With Suspected and Confirmed Dengue

The number of subjects with suspected and confirmed Dengue post-vaccination.

Time frame:
During the 31-day (Days 0-30) follow-up after each vaccine dose and across doses
Reported as:
Count of participants · Participants
Number of Subjects With Suspected and Confirmed Dengue
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Suspected dengue, Dose 11001
Confirmed dengue, Dose 10000
Suspected dengue, Dose 20000
Confirmed dengue, Dose 20000
Suspected dengue, Across doses1001
Confirmed dengue, Across doses0000
SecondaryNumber of Subjects With Measurable Dengue Viremia

The number of subjects with measurable dengue viremia at specified timepoints. Negative = Genome equivalent (GEQ)/µL result is equal to zero; Undetermined = GEQ/µL result is below limit of detection (LOD); Positive = GEQ/µL result is ≥ LOD.

Time frame:
During the 31-day (Days 0-30) follow-up after each vaccine dose
Reported as:
Count of participants · Participants
Number of Subjects With Measurable Dengue Viremia
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
DEN-1 Positive, Dose 10000
DEN-1 Undetermined, Dose 12121
DEN-1 Negative, Dose 118211920
DEN-1 Missing, Dose 12000
DEN-1 Positive, Dose 20000
DEN-1 Undetermined, Dose 21221
DEN-1 Negative, Dose 215171619
DEN-1 Missing, Dose 26331
DEN-1 Positive, Across doses0000
DEN-1 Undetermined, Across doses3332
DEN-1 Negative, Across doses13161518
DEN-1 Missing, Across doses6331
DEN-2 Positive, Dose 10000
DEN-2 Undetermined, Dose 11100
DEN-2 Negative, Dose 118201919
DEN-2 Missing, Dose 13122
DEN-2 Positive, Dose 20000
DEN-2 Undetermined, Dose 20110
DEN-2 Negative, Dose 215171518
DEN-2 Missing, Dose 27453
DEN-2 Positive, Across doses0000
DEN-2 Undetermined, Across doses0210
DEN-2 Negative, Across doses15161518
DEN-2 Missing, Across doses7453
DEN-3 Positive, Dose 10000
DEN-3 Undetermined, Dose 10000
DEN-3 Negative, Dose 120222121
DEN-3 Missing, Dose 12000
DEN-3 Positive, Dose 20000
DEN-3 Undetermined, Dose 20000
DEN-3 Negative, Dose 216191820
DEN-3 Missing, Dose 26331
DEN-3 Positive, Across doses0000
DEN-3 Undetermined, Across doses0000
DEN-3 Negative, Across doses16191820
DEN-3 Missing, Across doses6331
DEN-4 Positive, Dose 12100
DEN-4 Undetermined, Dose 11110
DEN-4 Negative, Dose 117202021
DEN-4 Missing, Dose 12000
DEN-4 Positive, Dose 23000
DEN-4 Undetermined, Dose 20000
DEN-4 Negative, Dose 213191820
DEN-4 Missing, Dose 26331
DEN-4 Positive, Across doses5100
DEN-4 Undetermined, Across doses1110
DEN-4 Negative, Across doses11171720
DEN-4 Missing, Across doses5331
SecondaryNumber of Subjects With Safety Laboratory Determinations Outside the Normal Ranges

Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet). Below = value below the laboratory reference range defined for the specified visit and laboratory parameter; Above = value above the laboratory reference range defined for the specified visit and laboratory parameter.

Time frame:
During the 31-day (Days 0-30) follow-up after each vaccine dose (Month 1 and Month 7)
Reported as:
Count of participants · Participants
Number of Subjects With Safety Laboratory Determinations Outside the Normal Ranges
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
ALT Below, Month 10000
ALT Above, Month 11112
ALT Below, Month 70000
ALT Above, Month 70000
AST Below, Month 10000
AST Above, Month 10121
AST Below, Month 70000
AST Above, Month 70000
HC Below, Month 10624
HC Above, Month 10000
HC Below, Month 73333
HC Above, Month 70000
NEU Below, Month 11001
NEU Above, Month 10000
NEU Below, Month 70101
NEU Above, Month 70002
Platelet Below, Month 10000
Platelet Above, Month 10120
Platelet Below, Month 70000
Platelet Above, Month 70000
SecondaryTiters for DEN Neutralizing Antibodies Types 1, 2, 3 and 4

Titers for DEN-1, DEN-2, DEN-3 and DEN-4 neutralizing antibodies, expressed as Geometric Mean Titers (GMTs), with cut-off values greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum.

Time frame:
At Month 0 and Month 1
Reported as:
Geometric mean · ED50
Titers for DEN Neutralizing Antibodies Types 1, 2, 3 and 4
ED50Dengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
DEN-1, Month 010 (5 to 22)10 (4 to 24)13 (4 to 41)7 (4 to 12)
DEN-1, Month 151 (15 to 179)20 (8 to 50)127 (36 to 450)7 (3 to 14)
DEN-2, Month 09 (5 to 17)11 (4 to 26)11 (4 to 29)7 (4 to 10)
DEN-2, Month 1230 (84 to 630)94 (34 to 261)287 (95 to 870)7 (4 to 10)
DEN-3, Month 08 (5 to 14)11 (5 to 25)10 (4 to 25)6 (4 to 9)
DEN-3, Month 141 (13 to 124)22 (10 to 51)43 (14 to 135)6 (4 to 10)
DEN-4, Month 09 (5 to 19)8 (4 to 16)10 (4 to 23)6 (4 to 7)
DEN-4, Month 159 (16 to 224)52 (16 to 173)63 (17 to 238)6 (5 to 8)
SecondaryNumber of Subjects With Antibody Titers Above the Assay Cut-off Value for Each DEN Serotype

Assay cut-off values were greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum.

Time frame:
At Months 0, 1 and 7
Reported as:
Count of participants · Participants
Number of Subjects With Antibody Titers Above the Assay Cut-off Value for Each DEN Serotype
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
DEN-1, Month 04331
DEN-1, Month 1119131
DEN-1, Month 71514132
DEN-2, Month 04333
DEN-2, Month 11815162
DEN-2, Month 71615152
DEN-3, Month 04431
DEN-3, Month 11212121
DEN-3, Month 71213132
DEN-4, Month 04331
DEN-4, Month 11012113
DEN-4, Month 71314111
SecondaryNumber of Subjects With Antibody Titers Above the Assay Cut-off Value (Tetravalent Response) for All Dengue Serotypes

The antibody titers and pre-vaccination status were determined by MN50 with a cut-off value equal to 1:10.

Time frame:
At Months 1 and 7
Reported as:
Count of participants · Participants
Number of Subjects With Antibody Titers Above the Assay Cut-off Value (Tetravalent Response) for All Dengue Serotypes
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Unprimed, Month 16660
Unprimed, Month 710980
Primed, Month 14331
Primed, Month 72331
SecondaryNumber of Subjects With Sero-response to Each DEN Type

Sero-response defined as: For initially seronegative subjects (antibody titer \< 10 ED50 for neutralizing antibodies to DEN 1, DEN 2, DEN 3, DEN 4 prior to vaccination), antibody titer ≥ 10 ED50 at post-vaccination; For initially seropositive subjects (antibody titer ≥ 10 ED50 for neutralizing antibodies to DEN 1, DEN 2, DEN 3, DEN 4 prior to vaccination), antibody titer at post-vaccination ≥ 4 fold the pre-vaccination antibody titer.

Time frame:
At Months 1 and 7
Reported as:
Count of participants · Participants
Number of Subjects With Sero-response to Each DEN Type
ParticipantsDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
DEN-1, Month 1106100
DEN-1, Month 71411101
DEN-2, Month 11613140
DEN-2, Month 71413130
DEN-3, Month 1118100
DEN-3, Month 71111111
DEN-4, Month 191092
DEN-4, Month 7121290
SecondaryNumber of Subjects With Any and Grade 3 Solicited Local Symptoms

Assessed solicited local symptoms were pain, redness and swelling. Any = occurrence of the symptom regardless of intensity grade. Grade 3 pain = pain that prevented normal activity. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

Time frame:
During the 21-day (Days 0-20) follow-up after the study vaccine booster dose
Reported as:
Count of participants · Participants
Number of Subjects With Any and Grade 3 Solicited Local Symptoms
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
Any Pain00
Grade 3 Pain00
Any Redness12
Grade 3 Redness00
Any Swelling01
Grade 3 Swelling00
SecondaryNumber of Subjects With Any, Grade 3 and Related Solicited General Symptoms

Assessed solicited general symptoms were abdominal pain, arthralgia, fatigue, fever \[defined as oral temperature equal to or above (≥) 37.5 degrees Celsius (°C)\], headache, muscle aches, nausea, pain behind the eyes, photophobia, pruritus, rash and vomiting. Any = occurrence of the symptom regardless of intensity grade or relation to vaccination. Grade 3 symptom = symptom that prevented normal activity. Grade 3 fever = oral fever \> 39.0 °C. Related = symptom assessed by the investigator as causally related to the study vaccination.

Time frame:
During the 21-day (Days 0-20) follow-up after the study vaccine booster dose
Reported as:
Count of participants · Participants
Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
Any Abdominal pain01
Grade 3 Abdominal pain00
Related Abdominal pain00
Any Arthralgia00
Grade 3 Arthralgia00
Related Arthralgia00
Any Fatigue10
Grade 3 Fatigue00
Related Fatigue10
Any Fever30
Grade 3 Fever00
Related Fever20
Any Headache20
Grade 3 Headache00
Related Headache20
Any Muscle aches00
Grade 3 Muscle aches00
Related Muscle aches00
Any Nausea11
Grade 3 Nausea00
Related Nausea00
Any Pain behind eyes00
Grade 3 Pain behind eyes00
Related Pain behind eyes00
Any Photophobia01
Grade 3 Photophobia00
Related Photophobia01
Any Pruritus00
Grade 3 Pruritus00
Related Pruritus00
Any Rash00
Grade 3 Rash00
Related Rash00
Any Vomiting10
Grade 3 Vomiting00
Related Vomiting00
SecondaryNumber of Subjects With Any, Grade 3 and Related Unsolicited AEs

An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product and reported in addition to those solicited during the clinical study and any solicited symptom with onset outside the specified period of follow-up for solicited symptoms. Any was defined as the occurrence of any unsolicited AE regardless of intensity grade or relation to vaccination.

Time frame:
During the 31-day (Days 0-30) follow-up after the study vaccine booster dose
Reported as:
Count of participants · Participants
Number of Subjects With Any, Grade 3 and Related Unsolicited AEs
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
Any AE(s)63
Grade 3 AE(s)20
Related AE(s)01
SecondaryNumber of Subjects With SAEs

SAEs assessed include medical occurrences that result in death, are life-threatening, require hospitalization or prolongation of hospitalization or result in disability/incapacity.

Time frame:
During the whole booster phase of the study (from pre-vaccination up to Month 6 post-vaccination with the booster dose)
Reported as:
Count of participants · Participants
Number of Subjects With SAEs
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
Number of Subjects With SAEs20
SecondaryNumber of Subjects With Hematological and Biochemical Determinations Within and Outside the Normal Ranges

Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet). Below = value below the laboratory reference range defined for the specified visit and laboratory parameter; Within = value within the laboratory reference range defined for the specified visit and laboratory parameter; Above = value above the laboratory reference range defined for the specified visit and laboratory parameter. Note: No blood sample was taken for these laboratory tests at Month 6 post-booster vaccination.

Time frame:
At each booster phase visit [pre-booster vaccination (PRE), study Visit 12 post-booster vaccination (Days 2, 5, 8 or 12) (FU1), study Visit 13 post-booster vaccination (Days 5, 8, 12 or 14) (FU2) and at Months 1 and 6 post-booster vaccination]
Reported as:
Count of participants · Participants
Number of Subjects With Hematological and Biochemical Determinations Within and Outside the Normal Ranges
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
ALT Within, PRE912
ALT Within, FU1912
ALT Within, FU2912
ALT Within, Month 1912
ALT Below, PRE00
ALT Below, FU100
ALT Below, FU200
ALT Below, Month 100
ALT Above, PRE00
ALT Above, FU100
ALT Above, FU200
ALT Above, Month 100
AST Within, PRE912
AST Within, FU1912
AST Within, FU2912
AST Within, Month 1912
AST Below, PRE00
AST Below, FU100
AST Below, FU200
AST Below, Month 100
AST Above, PRE00
AST Above, FU100
AST Above, FU200
AST Above, Month 100
HC Within, PRE810
HC Within, FU189
HC Within, FU2811
HC Within, Month 1812
HC Below, PRE12
HC Below, FU113
HC Below, FU211
HC Below, Month 110
HC Above, PRE00
HC Above, FU100
HC Above, FU200
HC Above, Month 100
NEU Within, PRE911
NEU Within, FU1812
NEU Within, FU2812
NEU Within, Month 1712
NEU Below, PRE00
NEU Below, FU110
NEU Below, FU200
NEU Below, Month 120
NEU Above, PRE01
NEU Above, FU100
NEU Above, FU210
NEU Above, Month 100
Platelet Within, PRE912
Platelet Within, FU1912
Platelet Within, FU2912
Platelet Within, Month 1812
Platelet Below, PRE00
Platelet Below, FU100
Platelet Below, FU200
Platelet Below, Month 100
Platelet Above, PRE00
Platelet Above, FU100
Platelet Above, FU200
Platelet Above, Month 110
SecondaryNumber of Subjects With Alert Values for Safety Laboratory Determinations

Among assessed haematological and biochemical parameters were: Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), hematocrit (HC), absolute neutrophil count (NEU) and platelet count (Platelet).

Time frame:
During the 31-day (Days 0-30) follow-up after the study vaccine booster dose
Reported as:
Count of participants · Participants
Number of Subjects With Alert Values for Safety Laboratory Determinations
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
ALT00
AST00
HC00
NEU00
Platelet00
SecondaryNumber of Subjects With Abnormal Findings at Dengue Physical Examination

The abnormal findings at Dengue physical examination included: Conjunctival hemorrhage, Conjunctival injection, Generalized lymphadenopathy, Generalized rash, Hepatomegaly, Lymphadenopathy, Mucosal hemorrhage, Rash, Skin hemorrhage and Splenomegaly. Rash involved \< 50% of the body surface; Generalized rash involved at least 50% of the body surface. Generalized lymphadenopathy was defined as palpable lymph nodes in four or more of the following locations: cervical, axillary, inguinal or other, with right and left sides considered as separate locations. Note: Results only available during the 31-day follow-up period (Month 1) after the booster dose, instead of at each booster phase visit \[pre-vaccination, study Visit 12 post-booster vaccination (Days 2, 5, 8 or 12), Visit 13 post-booster vaccination (Days 5, 8, 12 or 14) and at Months 1 and 6 post-booster vaccination\].

Time frame:
At Month 1 post-booster vaccination
Reported as:
Count of participants · Participants
Number of Subjects With Abnormal Findings at Dengue Physical Examination
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
Conjunctival hemorrhage00
Conjunctival injection00
Generalized lymphadenopathy00
Generalized rash00
Hepatomegaly02
Lymphadenopathy12
Mucosal hemorrhage10
Rash00
Skin hemorrhage00
Splenomegaly00
SecondaryNumber of Subjects With Suspected and Confirmed Dengue

The number of subjects with suspected and confirmed Dengue post-booster vaccination.

Time frame:
During the 31-day (Days 0-30) follow-up after the study vaccine booster dose
Reported as:
Count of participants · Participants
Number of Subjects With Suspected and Confirmed Dengue
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
Suspected dengue00
Confirmed dengue00
SecondaryNumber of Subjects With Measurable Dengue Viremia

The number of subjects with measurable dengue viremia at specified timepoints.

Time frame:
At study Visit 12 (Days 2, 5, 8 or 12) (FU1), study Visit 13 post-booster vaccination (Days 5, 8, 12 or 14) (FU2) and at study Visit 14 (Month 1 post-booster vaccination)
Reported as:
Count of participants · Participants
Number of Subjects With Measurable Dengue Viremia
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
DEN-1 Positive, FU100
DEN-2 Positive, FU100
DEN-3 Positive, FU100
DEN-4 Positive, FU100
DEN-1 Positive, FU200
DEN-2 Positive, FU200
DEN-3 Positive, FU200
DEN-4 Positive, FU200
DEN-1 Positive, Month 100
DEN-2 Positive, Month 101
DEN-3 Positive, Month 100
DEN-4 Positive, Month 100
SecondaryNumber of Subjects With Antibody Titers Above the Assay Cut-off Value for Each DEN Serotype

Assay cut-off values were greater than or equal to (≥) 10 estimated dose giving 50% (ED50) signal reduction when compared to a control without serum. Not primed = Not primed by MN50; Primed = Primed by MN50. Primed subject is a subject with neutralizing antibody titer ≥ 10 ED50 at pre-vaccination for at least one DEN type. Not primed subject is a subject with neutralizing antibody titer \<10 ED50 for any DEN type at pre-vaccination.

Time frame:
Before (PRE) and one month after the booster vaccination (Month 1)
Reported as:
Count of participants · Participants
Number of Subjects With Antibody Titers Above the Assay Cut-off Value for Each DEN Serotype
ParticipantsDengue Formulation 17b GroupDengue Formulation 19 Group
DEN-1 Not primed, PRE45
DEN-1 Not primed, Month 157
DEN-1 Primed, PRE22
DEN-1 Primed, Month 122
DEN-2 Not primed, PRE44
DEN-2 Not primed, Month 157
DEN-2 Primed, PRE22
DEN-2 Primed, Month 122
DEN-3 Not primed, PRE13
DEN-3 Not primed, Month 154
DEN-3 Primed, PRE22
DEN-3 Primed, Month 122
DEN-4 Not primed, PRE23
DEN-4 Not primed, Month 154
DEN-4 Primed, PRE22
DEN-4 Primed, Month 122

Adverse events

Collected over Solicited local and general symptoms: during the 21-day (Days 0-20) follow up period after primary vaccination; Unsolicited AEs: during the 31-day (Days 0-30) follow up period after primary vaccination; SAEs: throughout the whole study period (from Day 0 up to Month 6 post-booster vaccination).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Dengue Formulation 17a Group0/22 (0%)0/22 (0%)20/22 (90.9%)
Dengue Formulation 17b Group0/22 (0%)1/22 (4.5%)19/22 (86.4%)
Dengue Formulation 19 Group0/21 (0%)1/21 (4.8%)18/21 (85.7%)
Placebo Group0/21 (0%)1/21 (4.8%)16/21 (76.2%)
Most frequent serious events
Most frequent serious events
EventDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
Procedural hypertentionInjury, poisoning and procedural complications0/221/90/120/21
Hodgkin's diseaseNeoplasms benign, malignant and unspecified (incl cysts and polyps)0/221/90/120/21
Demyelinating polyneuropathyNervous system disorders0/220/221/210/21
Physical assaultSocial circumstances0/220/220/211/21
Most frequent other events
Showing 10 of 26
Most frequent other events
EventDengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo Group
HeadacheNervous system disorders14/229/2210/219/21
FatigueGeneral disorders10/228/226/217/21
PainGeneral disorders9/223/225/215/21
PruritusSkin and subcutaneous tissue disorders9/223/223/214/21
ErythemaSkin and subcutaneous tissue disorders8/223/225/216/21
Eye painEye disorders4/227/225/213/21
RashSkin and subcutaneous tissue disorders7/223/223/210/21
SwellingGeneral disorders7/225/225/213/21
ArthralgiaMusculoskeletal and connective tissue disorders6/224/223/213/21
MyalgiaMusculoskeletal and connective tissue disorders6/225/224/214/21

Baseline characteristics

Age, Continuous
Age, Continuous(Years)Dengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo GroupTotal
Mean35.90 ± 7.7532.80 ± 6.9333.0 ± 8.6035.8 ± 6.7034.37 ± 7.54
Sex: Female, Male
Sex: Female, Male(Participants)Dengue Formulation 17a GroupDengue Formulation 17b GroupDengue Formulation 19 GroupPlacebo GroupTotal
Female61181035
Male1611131151
08

Study locations

1 site
  • GSK Investigational Site
    Silver Spring, Maryland 20910, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 19, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00239577
Lead sponsor
GlaxoSmithKline
Responsible party
Sponsor
First posted
Oct 17, 2005
Start date
Apr 5, 2006
Primary completion
Jun 19, 2007
Completion
Jun 19, 2007
Results posted
Feb 19, 2019
Last update
Feb 19, 2019

Study contacts

GSK Clinical Trials
study director · GlaxoSmithKline
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

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