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CompletedNCT01092507Updated Dec 25, 2013Results posted

A Study of Japanese Encephalitis Chimeric Virus Vaccine Compared With SA14-14-2 Vaccine in Infants and Toddlers

A Phase 3 interventional study of Japanese encephalitis chimeric virus vaccine (JE-CV) and Japanese encephalitis live vaccine (SA14-14-2 vaccine) (CD.JEVAX®) in Encephalitis and Japanese Encephalitis, sponsored by Sanofi Pasteur, a Sanofi Company. Completed at 3 sites in Thailand. Open to participants aged 9 Months to 18 Months, including healthy volunteers. Per ClinicalTrials.gov, last updated 2013-12-25.

Sponsored by Sanofi Pasteur, a Sanofi Company · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
300
Allocation
Randomized
Ages
9 Months to 18 Months
Sex
All
01

Study summary

The purpose of this study is to compare a single dose of Japanese encephalitis (JE) chimeric virus vaccine (JE-CV) with a single dose of SA14-14-2 live vaccine as primary vaccination in infants and toddlers.

Primary Objective:

  • To demonstrate the non-inferiority of the antibody response 28 days after vaccine administration of one dose of JE CV (administered on Day 0) compared to the antibody response after one dose of the SA14-14-2 control vaccine (administered on Day 0).

Secondary Objectives:

  • To describe the immune response to JE in both vaccine groups in JE-CV virus and SA14-14-2 virus before and after a single dose of JE CV or a single dose of SA14-14-2 vaccine
  • To describe the safety profile in all vaccinated subjects up to 28 days and all serious adverse events (SAEs) up to 6 months after vaccination.
  • To describe only related SAEs and all death from 6 month to 12-month follow-up.
Read the detailed description

All participants will receive one injection of their randomized vaccine on Day 0. Follow-up will continue for 12 months after vaccination.

02

Conditions studied

  • Encephalitis
  • Japanese Encephalitis

Keywords

  • Encephalitis
  • Japanese Encephalitis
  • Japanese Encephalitis Vaccines
  • Infant
03

In context

Encephalitis, Japanese

77 studies on the registry are indexed under Encephalitis, Japanese; 4 are open to participants now.

This study's enrollment of 300 is close to the median of 278 across 69 interventional studies indexed under Encephalitis, Japanese.

Browse Encephalitis, Japanese studies →

Lead sponsor

Sanofi Pasteur, a Sanofi Company is the lead sponsor of 366 studies on the registry; 4 are open to participants now.

Of its 94 completed or terminated interventional studies of FDA-regulated products, 73 (78%) have results posted.

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

04

Who can participate

Ages eligible
9 Months to 18 Months
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Aged 9 to 18 months on the day of inclusion
  • In good general health, without significant medical history
  • Provision of informed consent form signed by at least one parent or other legally acceptable representative, and by at least one independent witness if required by local regulations
  • Subject and parent/legally acceptable representatives able to attend all scheduled visits and comply with all trial procedures
  • Completion of vaccinations according to the national immunization schedule.

Exclusion criteria

Exclusion Criteria :

  • Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the 4 weeks preceding the first trial vaccination
  • Planned participation in another clinical trial during the present trial period
  • Known or suspected congenital or acquired immunodeficiency, immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months, or long-term systemic corticosteroid therapy
  • Known systemic hypersensitivity to any of the vaccine components or history of a life-threatening reaction to a vaccine containing any of the same substances
  • Chronic illness at a stage that could interfere with trial conduct or completion, in the opinion of the Investigator
  • Receipt of blood or blood-derived products in the past 3 months that might interfere with the assessment of the immune response
  • Previous vaccination against flavivirus disease, including Japanese encephalitis (JE)
  • Administration of any anti-viral within 2 months preceding first vaccination and up to the 4 weeks following the last trial vaccination at Month 3
  • Receipt of any vaccine in the 4 weeks preceding the first trial vaccination
  • Planned receipt of any vaccine from the inclusion up to the 4 weeks following the last trial vaccination
  • Planned receipt of any Japanese encephalitis vaccine during the course of the study
  • History of central nervous system disorder or disease, including seizures
  • History of flavivirus infection (confirmed either clinically, serologically or microbiologically)
  • Febrile illness (temperature ≥ 38°C) or moderate or severe acute illness/infection on the day of vaccination, according to Investigator judgment.
05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
300 participants (actual)

Study arms

  • Experimental
    JE-CV Group

    Participants will receive one dose of Japanese encephalitis chimeric virus vaccine (JE-CV)

    Biological: Japanese encephalitis chimeric virus vaccine (JE-CV)

  • Active comparator
    SA14-14-2 vaccine Group

    Participants will receive one dose of Japanese encephalitis live vaccine, SA14-14-2 vaccine. (CD.JEVAX®)

    Biological: Japanese encephalitis live vaccine (SA14-14-2 vaccine) (CD.JEVAX®)

Interventions

  • BiologicalJapanese encephalitis chimeric virus vaccine (JE-CV)

    0.5 mL, Subcutaneous

  • BiologicalJapanese encephalitis live vaccine (SA14-14-2 vaccine) (CD.JEVAX®)

    0.5 mL, Subcutaneous

06

What researchers measure

Primary outcomes

  1. Number of Participants With Japanese Encephalitis Seroconversion After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2) (CD.JEVAX®)

    Immunogenicity was assessed by the JE-CV virus and the SA14-14-2 virus 50% plaque reduction neutralization test (PRNT50). Japanese Encephalitis seroconversion was defined as a pre-vaccination titer \<10 1/dil and post-vaccination titer ≥ 10 1/dil; or a pre-vaccination titer ≥ 10 1/dil and a 4-fold increase from pre- to post-vaccination.

    Time frame: Day 0 through Day 28 after vaccination

Secondary outcomes

  1. Number of Participants With Japanese Encephalitis Seroprotection 28 Days After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2, CD.JEVAX®)

    Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50. Japanese encephalitis seroprotection defined as participant with antibody titer ≥ 1:10 at baseline (D0) and on Day 28, Month 6, and Month 12.

    Time frame: Day 28 post-vaccination

  2. Number of Participants With Seroconversion After Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2) (CD.JEVAX®)

    Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50. Seroconversion was defined as a pre-vaccination titer \< 10 1/dil and post vaccination titer ≥ 10 1/dil, or a pre-vaccination titer ≥ 10 and a 4-fold increase from pre- to post-vaccination.

    Time frame: Day 28 post-vaccination

  3. Summary of Geometric Mean Titers of Vaccine Antibodies Before and Following One Dose of Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2; CD.JEVAX®)

    Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50.

    Time frame: Day 0 (pre-vaccination) and Day 28 post-vaccination

  4. Summary of Participants With Japanese Encephalitis Seroprotection After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2, CD.JEVAX®)

    Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50. Japanese encephalitis seroprotection defined as participant with antibody titer ≥ 1:10 at baseline (D0) and on Day 28, Month 6, and Month 12.

    Time frame: Day 28 up to 12 months post-vaccination

  5. Summary of Geometric Mean Titers of Vaccine Antibodies Before and Following One Dose of Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2; CD.JEVAX®)

    Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50.

    Time frame: Day 0 (pre-vaccination) and up to 12 months post-vaccination

  6. Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2 Vaccine) (CD.JEVAX®)

    Solicited Injection Site Reactions: Tenderness, Erythema, Swelling. Solicited Systemic Reactions: Fever (Temperature), Vomiting, Crying Abnormal, Drowsiness, Appetite Loss, Irritability. Grade 3 Reactions defined as: Tenderness - crying when injected limb was moved, or movement of the injected limb was reduced; Erythema and Swelling - ≥ 5 cm; Fever - temperature \> 39.5ºC; Vomiting - ≥ 6 episodes per 24 hours or requiring parenteral hydration; Crying Abnormal - \> 3 hours; Drowsiness - Sleeping most of the time or difficult to wake up; Appetite loss - refused ≥ 3 feeds or refused most feeds; and Irritability - inconsolable.

    Time frame: Day 0 through Day 14 post-vaccination

07

Results

Posted Dec 2, 2013

Participant flow

Participants were enrolled from 07 March 2010 to 27 April 2011 at 3 clinical centers in Thailand.

Participant flow — Overall Study
MilestoneJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
Started149150
Completed147150
Not completed20
Withdrew: Withdrawal by subject20

Outcome measures

PrimaryNumber of Participants With Japanese Encephalitis Seroconversion After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2) (CD.JEVAX®)

Immunogenicity was assessed by the JE-CV virus and the SA14-14-2 virus 50% plaque reduction neutralization test (PRNT50). Japanese Encephalitis seroconversion was defined as a pre-vaccination titer \<10 1/dil and post-vaccination titer ≥ 10 1/dil; or a pre-vaccination titer ≥ 10 1/dil and a 4-fold increase from pre- to post-vaccination.

Time frame:
Day 0 through Day 28 after vaccination
Reported as:
Number · Participants
Number of Participants With Japanese Encephalitis Seroconversion After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2) (CD.JEVAX®)
ParticipantsJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
Number of Participants With Japanese Encephalitis Seroconversion After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2) (CD.JEVAX®)125127
SecondaryNumber of Participants With Japanese Encephalitis Seroprotection 28 Days After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2, CD.JEVAX®)

Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50. Japanese encephalitis seroprotection defined as participant with antibody titer ≥ 1:10 at baseline (D0) and on Day 28, Month 6, and Month 12.

Time frame:
Day 28 post-vaccination
Reported as:
Number · Participants
Number of Participants With Japanese Encephalitis Seroprotection 28 Days After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2, CD.JEVAX®)
ParticipantsJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
Day 0, JE-CV PRNT50 (N = 127, 129)00
Day 28, JE-CV PRNT50 (N = 125, 128)125127
Day 0, SA14-14-2 PRNT50 (N = 125, 128)00
Day 28, SA14-14-2 PRNT50 (N = 125, 126)122123
SecondaryNumber of Participants With Seroconversion After Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2) (CD.JEVAX®)

Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50. Seroconversion was defined as a pre-vaccination titer \< 10 1/dil and post vaccination titer ≥ 10 1/dil, or a pre-vaccination titer ≥ 10 and a 4-fold increase from pre- to post-vaccination.

Time frame:
Day 28 post-vaccination
Reported as:
Number · Participants
Number of Participants With Seroconversion After Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2) (CD.JEVAX®)
ParticipantsJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
JE-CV PRNT50 (N = 126, 128)125127
SA14-14-2 PRNT50 (N = 124, 125)121122
SecondarySummary of Geometric Mean Titers of Vaccine Antibodies Before and Following One Dose of Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2; CD.JEVAX®)

Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50.

Time frame:
Day 0 (pre-vaccination) and Day 28 post-vaccination
Reported as:
Geometric mean · Titers
Summary of Geometric Mean Titers of Vaccine Antibodies Before and Following One Dose of Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2; CD.JEVAX®)
TitersJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
Day 0, JE-CV PRNT50 (N = 127, 129)5.0 (5.0 to 5.0)5.0 (5.0 to 5.0)
Day 28, JE-CV PRNT50 (N = 126, 128)491 (378 to 638)395 (304 to 514)
Day 0, SA14-14-2 PRNT50 (N = 125, 128)5.00 (5.00 to 5.00)5.0 (5.0 to 5.0)
Day 28, SA14-14-2 PRNT50 (N = 125, 126)205 (162 to 259)190 (152 to 239)
SecondarySummary of Participants With Japanese Encephalitis Seroprotection After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2, CD.JEVAX®)

Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50. Japanese encephalitis seroprotection defined as participant with antibody titer ≥ 1:10 at baseline (D0) and on Day 28, Month 6, and Month 12.

Time frame:
Day 28 up to 12 months post-vaccination
Reported as:
Number · Participants
Summary of Participants With Japanese Encephalitis Seroprotection After Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2, CD.JEVAX®)
ParticipantsJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
Day 0, JE-CV PRNT50 (N = 149, 150)65
Day 28, JE-CV PRNT50 (N = 146, 148)145147
Month 6, JE-CV PRNT50 (N = 145, 145)137141
Month 12, JE-CV PRNT50 (N = 143, 146)126142
Day 0, SA14-14-2 PRNT50 (N = 147, 149)00
Day 28, SA14-14-2 PRNT50 (N = 145, 146)141142
Month 6, SA14-14-2 PRNT50 (N = 145, 145)122129
Month 12, SA14-14-2 PRNT50 (N = 142, 144)109126
SecondarySummary of Geometric Mean Titers of Vaccine Antibodies Before and Following One Dose of Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2; CD.JEVAX®)

Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50.

Time frame:
Day 0 (pre-vaccination) and up to 12 months post-vaccination
Reported as:
Geometric mean · Titers
Summary of Geometric Mean Titers of Vaccine Antibodies Before and Following One Dose of Vaccination With Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2; CD.JEVAX®)
TitersJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
Day 0, JE-CV PRNT50 (N = 149, 150)5.39 (5.05 to 5.74)5.29 (4.98 to 5.61)
Day 28, JE-CV PRNT50 (N = 146, 148)507 (395 to 651)370 (291 to 470)
Month 6, JE-CV PRNT50 (N = 145, 145)119 (91.7 to 154)103 (85.6 to 124)
Month 12, JE-CV PRNT50 (N = 143, 146)97.6 (74.0 to 129)121 (96.7 to 151)
Day 0, SA14-14-2 PRNT50 (N = 147, 149)5.00 (5.00 to 5.00)5.00 (5.00 to 5.00)
Day 28, SA14-14-2 PRNT50 (N = 145, 146)198 (158 to 247)171 (138 to 212)
Month 6, SA14-14-2 PRNT50 (N = 145, 145)52.7 (41.2 to 67.4)51.4 (41.6 to 63.6)
Month 12, SA14-14-2 PRNT50 (N = 142, 144)46.5 (35.8 to 60.4)54.8 (43.9 to 68.4)
SecondaryNumber of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2 Vaccine) (CD.JEVAX®)

Solicited Injection Site Reactions: Tenderness, Erythema, Swelling. Solicited Systemic Reactions: Fever (Temperature), Vomiting, Crying Abnormal, Drowsiness, Appetite Loss, Irritability. Grade 3 Reactions defined as: Tenderness - crying when injected limb was moved, or movement of the injected limb was reduced; Erythema and Swelling - ≥ 5 cm; Fever - temperature \> 39.5ºC; Vomiting - ≥ 6 episodes per 24 hours or requiring parenteral hydration; Crying Abnormal - \> 3 hours; Drowsiness - Sleeping most of the time or difficult to wake up; Appetite loss - refused ≥ 3 feeds or refused most feeds; and Irritability - inconsolable.

Time frame:
Day 0 through Day 14 post-vaccination
Reported as:
Number · Participants
Number of Participants Reporting a Solicited Injection Site or Systemic Reaction Following Vaccination With One Dose of Either Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) or Japanese Encephalitis Live Vaccine (SA14-14-2 Vaccine) (CD.JEVAX®)
ParticipantsJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
Any injection site Tenderness4457
Grade 3 injection site Tenderness01
Any injection site Erythema2635
Grade 3 injection site Erythema00
Any injection site Swelling912
Grade 3 injection site Swelling00
Any Fever2433
Grade 3 Fever01
Any Vomiting2140
Grade 3 Vomiting12
Any Crying Abnormal2839
Grade 3 Crying Abnormal12
Any Drowsiness2538
Grade 3 Drowsiness00
Any Appetite Loss3254
Grade 3 Appetite Loss03
Any Irritability4158
Grade 3 Irritability05

Adverse events

Collected over Adverse events were assessed from Day 0 (post-vaccination) through 12 months post-vaccination.. Non-serious events are listed at a 5.00% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Japanese Encephalitis Chimeric Vaccine (JE-CV)—14/147 (9.5%)66/147 (44.9%)
Japanese Encephalitis Live Vaccine (SA14-14-2)—18/152 (11.8%)88/152 (57.9%)
Most frequent serious events
Showing 10 of 17
Most frequent serious events
EventJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
GastroenteritisInfections and infestations6/1471/152
Febrile ConvulsionNervous system disorders0/1474/152
Gastroenteritis RotavirusInfections and infestations0/1473/152
Viral InfectionInfections and infestations2/1471/152
BronchitisInfections and infestations1/1472/152
Anal AbscessInfections and infestations1/1470/152
Dengue FeverInfections and infestations1/1471/152
PharyngitisInfections and infestations1/1470/152
PneumoniaInfections and infestations1/1470/152
Pneumonia Respiratory Syncytial ViralInfections and infestations1/1471/152
Most frequent other events
Showing 10 of 12
Most frequent other events
EventJapanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)
IrritabilityGeneral disorders41/14658/152
Injection Site TendernessGeneral disorders44/14657/152
Appetite LossMetabolism and nutrition disorders32/14654/152
VomitingGastrointestinal disorders21/14640/152
Crying AbnormalGeneral disorders28/14639/152
DrowsinessNervous system disorders25/14638/152
Injection Site ErythemaGeneral disorders26/14635/152
FeverGeneral disorders24/14733/152
Upper Respiratory Tract InfectionInfections and infestations11/14731/152
NasopharyngitisInfections and infestations14/14710/152

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Japanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)Total
<=18 years149150299
Between 18 and 65 years000
>=65 years000
Age, Continuous
Age, Continuous(Months)Japanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)Total
Mean13.1 ± 2.1113.2 ± 1.8913.2 ± 2.00
Sex: Female, Male
Sex: Female, Male(Participants)Japanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)Total
Female6975144
Male8075155
Region of Enrollment
Region of Enrollment(Participants)Japanese Encephalitis Chimeric Vaccine (JE-CV)Japanese Encephalitis Live Vaccine (SA14-14-2)Total
Thailand149150299
08

Study locations

3 sites
  • Bangkok, 10330, Thailand
  • Bangkok, 10700, Thailand
  • Khon Kaen, 40002, Thailand
09

References and documents

Publications

  • Feroldi E, Pancharoen C, Kosalaraksa P, Chokephaibulkit K, Boaz M, Meric C, Hutagalung Y, Bouckenooghe A. Primary immunization of infants and toddlers in Thailand with Japanese encephalitis chimeric virus vaccine in comparison with SA14-14-2: a randomized study of immunogenicity and safety. Pediatr Infect Dis J. 2014 Jun;33(6):643-9. doi: 10.1097/INF.0000000000000276. PubMed 24717964 ↗

Related links

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 25, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01092507
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Responsible party
Sponsor
First posted
Mar 25, 2010
Start date
Mar 2010
Primary completion
Sep 2011
Completion
Oct 2011
Results posted
Dec 2, 2013
Last update
Dec 25, 2013

Study contacts

Medical Director
study director · Sanofi Pasteur Inc.

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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