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
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:
Secondary Objectives:
All participants will receive one injection of their randomized vaccine on Day 0. Follow-up will continue for 12 months after vaccination.
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 →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.
Exclusion Criteria :
Participants will receive one dose of Japanese encephalitis chimeric virus vaccine (JE-CV)
Biological: Japanese encephalitis chimeric virus vaccine (JE-CV)
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®)
0.5 mL, Subcutaneous
0.5 mL, Subcutaneous
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
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
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
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
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
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
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
Participants were enrolled from 07 March 2010 to 27 April 2011 at 3 clinical centers in Thailand.
| Milestone | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) |
|---|---|---|
| Started | 149 | 150 |
| Completed | 147 | 150 |
| Not completed | 2 | 0 |
| Withdrew: Withdrawal by subject | 2 | 0 |
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.
| Participants | Japanese 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®) | 125 | 127 |
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.
| Participants | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) |
|---|---|---|
| Day 0, JE-CV PRNT50 (N = 127, 129) | 0 | 0 |
| Day 28, JE-CV PRNT50 (N = 125, 128) | 125 | 127 |
| Day 0, SA14-14-2 PRNT50 (N = 125, 128) | 0 | 0 |
| Day 28, SA14-14-2 PRNT50 (N = 125, 126) | 122 | 123 |
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.
| Participants | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) |
|---|---|---|
| JE-CV PRNT50 (N = 126, 128) | 125 | 127 |
| SA14-14-2 PRNT50 (N = 124, 125) | 121 | 122 |
Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50.
| Titers | Japanese 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) |
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.
| Participants | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) |
|---|---|---|
| Day 0, JE-CV PRNT50 (N = 149, 150) | 6 | 5 |
| Day 28, JE-CV PRNT50 (N = 146, 148) | 145 | 147 |
| Month 6, JE-CV PRNT50 (N = 145, 145) | 137 | 141 |
| Month 12, JE-CV PRNT50 (N = 143, 146) | 126 | 142 |
| Day 0, SA14-14-2 PRNT50 (N = 147, 149) | 0 | 0 |
| Day 28, SA14-14-2 PRNT50 (N = 145, 146) | 141 | 142 |
| Month 6, SA14-14-2 PRNT50 (N = 145, 145) | 122 | 129 |
| Month 12, SA14-14-2 PRNT50 (N = 142, 144) | 109 | 126 |
Immunogenicity was assessed by JE-CV virus 50% plaque reduction neutralization test (PRNT50) or SA14-14-2 virus PRNT50.
| Titers | Japanese 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) |
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.
| Participants | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) |
|---|---|---|
| Any injection site Tenderness | 44 | 57 |
| Grade 3 injection site Tenderness | 0 | 1 |
| Any injection site Erythema | 26 | 35 |
| Grade 3 injection site Erythema | 0 | 0 |
| Any injection site Swelling | 9 | 12 |
| Grade 3 injection site Swelling | 0 | 0 |
| Any Fever | 24 | 33 |
| Grade 3 Fever | 0 | 1 |
| Any Vomiting | 21 | 40 |
| Grade 3 Vomiting | 1 | 2 |
| Any Crying Abnormal | 28 | 39 |
| Grade 3 Crying Abnormal | 1 | 2 |
| Any Drowsiness | 25 | 38 |
| Grade 3 Drowsiness | 0 | 0 |
| Any Appetite Loss | 32 | 54 |
| Grade 3 Appetite Loss | 0 | 3 |
| Any Irritability | 41 | 58 |
| Grade 3 Irritability | 0 | 5 |
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.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| 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%) |
| Event | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) |
|---|---|---|
| GastroenteritisInfections and infestations | 6/147 | 1/152 |
| Febrile ConvulsionNervous system disorders | 0/147 | 4/152 |
| Gastroenteritis RotavirusInfections and infestations | 0/147 | 3/152 |
| Viral InfectionInfections and infestations | 2/147 | 1/152 |
| BronchitisInfections and infestations | 1/147 | 2/152 |
| Anal AbscessInfections and infestations | 1/147 | 0/152 |
| Dengue FeverInfections and infestations | 1/147 | 1/152 |
| PharyngitisInfections and infestations | 1/147 | 0/152 |
| PneumoniaInfections and infestations | 1/147 | 0/152 |
| Pneumonia Respiratory Syncytial ViralInfections and infestations | 1/147 | 1/152 |
| Event | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) |
|---|---|---|
| IrritabilityGeneral disorders | 41/146 | 58/152 |
| Injection Site TendernessGeneral disorders | 44/146 | 57/152 |
| Appetite LossMetabolism and nutrition disorders | 32/146 | 54/152 |
| VomitingGastrointestinal disorders | 21/146 | 40/152 |
| Crying AbnormalGeneral disorders | 28/146 | 39/152 |
| DrowsinessNervous system disorders | 25/146 | 38/152 |
| Injection Site ErythemaGeneral disorders | 26/146 | 35/152 |
| FeverGeneral disorders | 24/147 | 33/152 |
| Upper Respiratory Tract InfectionInfections and infestations | 11/147 | 31/152 |
| NasopharyngitisInfections and infestations | 14/147 | 10/152 |
| Age, Categorical(Participants) | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) | Total |
|---|---|---|---|
| <=18 years | 149 | 150 | 299 |
| Between 18 and 65 years | 0 | 0 | 0 |
| >=65 years | 0 | 0 | 0 |
| Age, Continuous(Months) | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) | Total |
|---|---|---|---|
| Mean | 13.1 ± 2.11 | 13.2 ± 1.89 | 13.2 ± 2.00 |
| Sex: Female, Male(Participants) | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) | Total |
|---|---|---|---|
| Female | 69 | 75 | 144 |
| Male | 80 | 75 | 155 |
| Region of Enrollment(Participants) | Japanese Encephalitis Chimeric Vaccine (JE-CV) | Japanese Encephalitis Live Vaccine (SA14-14-2) | Total |
|---|---|---|---|
| Thailand | 149 | 150 | 299 |
This study is completed, as verified in Nov 2013. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Sanofi Pasteur, a Sanofi Company