Clinical Trial Results:
Immunogenicity and Safety of AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ in 12-13 Months old Healthy Hepatitis A Seronegative Turkish Children
Summary
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EudraCT number |
2015-005192-24 |
Trial protocol |
Outside EU/EEA |
Global end of trial date |
01 Oct 2009
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Results information
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Results version number |
v1(current) |
This version publication date |
26 Mar 2016
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First version publication date |
26 Mar 2016
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
HAF65
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT00313950 | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
Sanofi Pasteur SA
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Sponsor organisation address |
2, avenue Pont Pasteur, Lyon Cedex 07, France, F-69367
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Public contact |
Responsible Medical Officer, Sanofi Pasteur SA, 33 4 37 37 74 62, Anvar.Rassouli@sanofipasteur.com
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Scientific contact |
Responsible Medical Officer, Sanofi Pasteur SA, 33 4 37 37 74 62, Anvar.Rassouli@sanofipasteur.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
Yes
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
27 Jul 2010
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Is this the analysis of the primary completion data? |
No
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Global end of trial reached? |
Yes
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Global end of trial date |
01 Oct 2009
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
1) To compare the immunogenicity of AVAXIM 80U-Pediatric vaccine administered in hepatitis A virus (HAV) seronegative children aged 12 to 13 months alone or in association with TRIMOVAX vaccine at 2 different sites, in terms of percentage of seroprotected subjects (titer ≥20 mIU/mL) 4 weeks after the first dose (D28).
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Protection of trial subjects |
Only subjects that met all the study inclusion and none of the exclusion criteria were randomized and vaccinated in the study. Vaccinations were performed by qualified and trained study personnel. Subjects with allergy to any of the vaccine components were not vaccinated. After vaccination, subjects were also kept under clinical observation for 30 minutes to ensure their safety. Appropriate medical equipment was also available on site in case of any immediate allergic reactions.
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Background therapy |
Not applicable | ||
Evidence for comparator |
Not applicable | ||
Actual start date of recruitment |
28 Sep 2006
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Turkey: 470
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Worldwide total number of subjects |
470
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EEA total number of subjects |
0
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
470
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
0
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From 65 to 84 years |
0
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85 years and over |
0
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Recruitment
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Recruitment details |
The study subjects were enrolled from 28 September 2006 to 06 February 2009 at 2 clinic centers in Turkey. | ||||||||||||||||||||||||||||||||
Pre-assignment
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Screening details |
A total of 470 subjects who met all of the inclusion and none of the exclusion criteria were randomized and vaccinated in this study. | ||||||||||||||||||||||||||||||||
Period 1
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Period 1 title |
Overall trial (overall period)
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Is this the baseline period? |
Yes | ||||||||||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Single blind | ||||||||||||||||||||||||||||||||
Roles blinded |
Investigator [1] | ||||||||||||||||||||||||||||||||
Blinding implementation details |
This was a blind observer study. The Investigator was a blind observer of safety. To reduce bias, product preparation/administration and assessment of safety were performed by two different individuals in separate rooms. Neither the Investigator nor the subjects/parents witnessed vaccine preparation and the Investigator did not witness the vaccine administration. In an emergency (i.e., serious adverse event), the code could be broken based on code-breaking procedures.
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Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Group A; AVAXIM 80U Pediatric/TRIMOVAX | ||||||||||||||||||||||||||||||||
Arm description |
Subjects received 1 dose of AVAXIM 80U-Pediatric on Day 0 and 1 dose of TRIMOVAX on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||||||||||
Investigational medicinal product name |
Inactivated Hepatitis A vaccine: AVAXIM™ 80U-Pediatric
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Suspension for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular injection into the deltoid, 1 injection on Day 0.
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Investigational medicinal product name |
Live attenuated MMR vaccine: TRIMOVAX™
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder for suspension for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular injection into the deltoid, 1 injection on Day 28.
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Arm title
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Group B; TRIMOVAX/AVAXIM 80U Pediatric | ||||||||||||||||||||||||||||||||
Arm description |
Subjects received 1 dose of TRIMOVAX on Day 0 and 1 dose of AVAXIM 80U-Pediatric on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||||||||||
Investigational medicinal product name |
Inactivated Hepatitis A vaccine: AVAXIM™ 80U-Pediatric
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Suspension for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular injection into the deltoid, 1 injection on Day 28.
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Investigational medicinal product name |
Live attenuated MMR vaccine: TRIMOVAX™
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder for suspension for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular injection into the deltoid, 1 injection on Day 0.
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Arm title
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Group C; AVAXIM 80U Pediatric and TRIMOVAX | ||||||||||||||||||||||||||||||||
Arm description |
Subjects received 1 dose each of AVAXIM 80U-Pediatric and TRIMOVAX on Day 0. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||||||||||
Investigational medicinal product name |
Inactivated Hepatitis A vaccine: AVAXIM™ 80U-Pediatric
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Suspension for injection in pre-filled syringe
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular injection into the deltoid, 1 injection on Day 0.
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Investigational medicinal product name |
Live attenuated MMR vaccine: TRIMOVAX™
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Powder for suspension for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular injection into the deltoid, 1 injection on Day 0.
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Notes [1] - The roles blinded appear inconsistent with a simple blinded trial. Justification: A double-blind design could not be used due to the different vaccine forms. The Investigator was a blind observer of safety. |
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Baseline characteristics reporting groups
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Reporting group title |
Group A; AVAXIM 80U Pediatric/TRIMOVAX
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Reporting group description |
Subjects received 1 dose of AVAXIM 80U-Pediatric on Day 0 and 1 dose of TRIMOVAX on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Group B; TRIMOVAX/AVAXIM 80U Pediatric
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Reporting group description |
Subjects received 1 dose of TRIMOVAX on Day 0 and 1 dose of AVAXIM 80U-Pediatric on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Group C; AVAXIM 80U Pediatric and TRIMOVAX
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Reporting group description |
Subjects received 1 dose each of AVAXIM 80U-Pediatric and TRIMOVAX on Day 0. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Group A; AVAXIM 80U Pediatric/TRIMOVAX
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Reporting group description |
Subjects received 1 dose of AVAXIM 80U-Pediatric on Day 0 and 1 dose of TRIMOVAX on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||
Reporting group title |
Group B; TRIMOVAX/AVAXIM 80U Pediatric
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Reporting group description |
Subjects received 1 dose of TRIMOVAX on Day 0 and 1 dose of AVAXIM 80U-Pediatric on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||
Reporting group title |
Group C; AVAXIM 80U Pediatric and TRIMOVAX
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Reporting group description |
Subjects received 1 dose each of AVAXIM 80U-Pediatric and TRIMOVAX on Day 0. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. |
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End point title |
Percentage of Hepatitis A Seronegative Subjects With Seroprotection Against Inactivated Hepatitis A Antigen After Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||
End point description |
Anti-Hepatitis A virus total immunoglobulin antibodies were measured by the commercially available Axsym HAVAB 2.0 kit, a microparticle enzyme immunoassay. Seroprotection was defined as anti-Hepatitis A virus antibody titer ≥ 20 mIU/mL on Day 28.
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End point type |
Primary
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End point timeframe |
Day 28 post-vaccination
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Statistical analysis title |
Non-inferiority (Group C - Group A) | ||||||||||||||||||||
Statistical analysis description |
Non-inferiority analysis of seroprotection rates between Group C (AVAXIM 80U-Pediatric and TRIMOVAX on Day 0) and Group A (AVAXIM 80U-Pediatric on Day 0 and TRIMOVAX on Day 28).
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Comparison groups |
Group C; AVAXIM 80U Pediatric and TRIMOVAX v Group A; AVAXIM 80U Pediatric/TRIMOVAX
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Number of subjects included in analysis |
336
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority [1] | ||||||||||||||||||||
Method |
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Parameter type |
Difference between Group C and Group A | ||||||||||||||||||||
Point estimate |
-0.92
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Confidence interval |
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level |
95% | ||||||||||||||||||||
sides |
2-sided
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lower limit |
-6.68 | ||||||||||||||||||||
upper limit |
4.69 | ||||||||||||||||||||
Notes [1] - Non-inferiority was demonstrated if the lower limit of the 95% confidence interval (CI) of the difference was greater than -5%. Group C was not inferior to Group A. |
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End point title |
Geometric Mean Titers (GMTs) of Hepatitis A Antibodies After Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||||||
End point description |
Anti-Hepatitis A virus total immunoglobulin antibodies were measured by the commercially available Axsym HAVAB 2.0 kit, a microparticle enzyme immunoassay.
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End point type |
Secondary
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End point timeframe |
Day 7 and Day 28 post-vaccination
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No statistical analyses for this end point |
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End point title |
Percentage of Hepatitis A Seronegative Subjects With Hepatitis Antibodies at ≥5 mIU/mL and ≥20 mIU/mL After Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||||||||||||||
End point description |
Anti-Hepatitis A virus total immunoglobulin antibodies were measured by the commercially available Axsym HAVAB 2.0 kit, a microparticle enzyme immunoassay.
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End point type |
Secondary
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End point timeframe |
Day 7 and Day 28 post-vaccination
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No statistical analyses for this end point |
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End point title |
Geometric Mean Titer Ratios (GMTR) of Hepatitis A Antibodies After Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ [2] | |||||||||||||||
End point description |
Anti-Hepatitis A virus total immunoglobulin antibodies were measured by the commercially available Axsym HAVAB 2.0 kit, a microparticle enzyme immunoassay.
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End point type |
Secondary
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End point timeframe |
Day 28/Day 7 post-vaccination
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Notes [2] - The end point is not reporting statistics for all the arms in the baseline period. It is expected all the baseline period arms will be reported on when providing values for an end point on the baseline period. Justification: Descriptive analyses were performed based on the study groups and the study vaccine administered for this outcome. |
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No statistical analyses for this end point |
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End point title |
Geometric Mean Titers (GMTs) of Hepatitis A Antibodies After Booster Vaccination with AVAXIM™ 80U-Pediatric Following A Primary Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||||||
End point description |
Anti-Hepatitis A virus total immunoglobulin antibodies were measured by the commercially available Axsym HAVAB 2.0 kit, a microparticle enzyme immunoassay.
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End point type |
Secondary
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End point timeframe |
Day 213 and Day 243 post-vaccination
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No statistical analyses for this end point |
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End point title |
Percentage of Hepatitis A Seronegative Subjects With Hepatitis Antibodies at ≥5 mIU/mL and ≥20 mIU/mL After Booster Vaccination with AVAXIM™ 80U-Pediatric After A Primary Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIM | ||||||||||||||||||||||||||||||||
End point description |
Anti-Hepatitis A virus total immunoglobulin antibodies were measured by the commercially available Axsym HAVAB 2.0 kit, a microparticle enzyme immunoassay.
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End point type |
Secondary
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End point timeframe |
Day 213 and Day 243 post-vaccination
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No statistical analyses for this end point |
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End point title |
Geometric Mean Titer Ratios (GMTR) of Hepatitis A Antibodies After Booster Vaccination with AVAXIM™ 80U-Pediatric Following A Primary Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||
End point description |
Anti-Hepatitis A virus total immunoglobulin antibodies were measured by the commercially available Axsym HAVAB 2.0 kit, a microparticle enzyme immunoassay.
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End point type |
Secondary
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End point timeframe |
Day 243/Day 213 post-vaccination
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No statistical analyses for this end point |
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End point title |
Geometric Mean Titers (GMTs) of Anti-Measles, Mumps, and Rubella Responses After Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||||||||||
End point description |
Anti-Measles, Mumps, and Rubella immunoglobulin antibodies were measured by enzyme-linked immunosorbent assay (ELISA).
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End point type |
Secondary
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End point timeframe |
Day 28 post-vaccination
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No statistical analyses for this end point |
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End point title |
Summary of Anti-Measles, Mumps, and Rubella Responses After Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||||||||||||||||||||||
End point description |
Anti-Measles, Mumps, and Rubella immunoglobulin antibodies were measured by enzyme-linked immunosorbent assay (ELISA).
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End point type |
Secondary
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End point timeframe |
Day 7 and Day 28 post-vaccination
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No statistical analyses for this end point |
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End point title |
Percentage of Subjects Reporting Solicited Injection-site or Systemic Reaction After Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
Solicited injection site reactions: Tenderness, Erythema, and Swelling (occurring after at least 1 of the 2 vaccinations for Group C). Solicited systemic reactions: Fever, Vomiting, Crying abnormal, Drowsiness, Appetite lost, Irritability.
Grade 3 solicited injection site reactions: Tenderness, Cries when injected limb is moved or the movement of the injected limb is reduced; Erythema and Swelling, ≥ 5 cm. Grade 3 systemic reactions: Fever, ≥ 39.6°C rectal; Vomiting, ≥ 6 episodes/24 hours or requiring parenteral hydration; Crying abnormal, > 3 hours; Drowsiness, Sleeping most of the time or difficult to wake up; Appetite lost, refuses ≥ 3 feeds or refuses most feeds; Irritability, Inconsolable.
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End point type |
Secondary
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End point timeframe |
Within 8 days of injections administered on Day 0
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No statistical analyses for this end point |
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End point title |
Percentage of Subjects Reporting Solicited Injection-site or Systemic Reaction After Booster Vaccination with AVAXIM™ 80U-Pediatric Following A Primary Vaccination with AVAXIM™ 80U-Pediatric Administered Alone or Concomitantly with TRIMOVAX™ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
Solicited injection site reactions: Tenderness, Erythema, and Swelling. Solicited systemic reactions: Fever, Vomiting, Crying abnormal, Drowsiness, Appetite lost, Irritability.
Grade 3 solicited injection site reactions: Tenderness, Cries when injected limb is moved or the movement of the injected limb is reduced; Erythema and Swelling, ≥ 5 cm. Grade 3 systemic reactions: Fever, ≥ 39.6°C rectal; Vomiting, ≥ 6 episodes/24 hours or requiring parenteral hydration; Crying abnormal, > 3 hours; Drowsiness, Sleeping most of the time or difficult to wake up; Appetite lost, refuses ≥ 3 feeds or refuses most feeds; Irritability, Inconsolable.
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End point type |
Secondary
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End point timeframe |
Within 8 days of injections administered on Day 213
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No statistical analyses for this end point |
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Adverse events information
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Timeframe for reporting adverse events |
Adverse event data were collected from Day 0 up to Day 8 after vaccinations on Day 213.
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Assessment type |
Non-systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
12
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Reporting groups
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Reporting group title |
Group A; AVAXIM 80U Pediatric/TRIMOVAX
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Reporting group description |
Subjects received 1 dose of AVAXIM 80U-Pediatric on Day 0 and 1 dose of TRIMOVAX on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Group B; TRIMOVAX/AVAXIM 80U Pediatric
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Reporting group description |
Subjects received 1 dose of TRIMOVAX on Day 0 and 1 dose of AVAXIM 80U-Pediatric on Day 28. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Group C; AVAXIM 80U Pediatric and TRIMOVAX
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Reporting group description |
Subjects received 1 dose each of AVAXIM 80U-Pediatric and TRIMOVAX on Day 0. All subjects received a booster dose of AVAXIM 80U-Pediatric on Day 213. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Notes [1] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 0; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [2] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 0; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [3] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 213; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [4] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 0; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [5] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 213; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [6] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 0; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [7] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 0; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [8] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 0; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. [9] - The number of subjects exposed to this adverse event is less than the total number of subjects exposed for the reporting group. These numbers are expected to be equal. Justification: This was a solicited adverse event recorded in a diary card within 8 days of injections administered on Day 0; the total number (N) reflects those subjects for which the diary cards were returned and for which data were available for the event during the period. |
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Substantial protocol amendments (globally) |
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Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
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19 Apr 2006 |
Mono-measles vaccination at 9 months of age was removed and replaced with the measles, mumps, and rubella vaccination at 12 months; age inclusion criteria was revised to include only 12- and 13-month infants; study design was defined as monocentric and study duration was 7 months. |
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28 Apr 2006 |
Blood sample analysis procedures were updated. |
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05 Feb 2007 |
The number of sites was updated to 2 centers; the schedule for the follow-up visits was revised, and the length of the entire study duration was updated to 8 months. |
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Interruptions (globally) |
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Were there any global interruptions to the trial? No | |||
Limitations and caveats |
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Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |