Clinical Trial Results:
Immunogenicity and Safety of a Booster Dose of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Adolescents and Adults
Summary
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EudraCT number |
2018-001470-18 |
Trial protocol |
Outside EU/EEA |
Global end of trial date |
19 Dec 2016
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Results information
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Results version number |
v1(current) |
This version publication date |
02 Jan 2019
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First version publication date |
02 Jan 2019
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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 |
MET56
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
NCT02752906 | ||
WHO universal trial number (UTN) |
U1111-1161-2710 | ||
Sponsors
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Sponsor organisation name |
Sanofi Pasteur Inc.
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Sponsor organisation address |
1 Discovery Drive, Swiftwater, PA, United States, 18370
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Public contact |
Trial Transparency Team, Sanofi Pasteur, Contact-US@sanofi.com
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Scientific contact |
Trial Transparency Team, Sanofi Pasteur, Contact-US@sanofi.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
Yes
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EMA paediatric investigation plan number(s) |
EMEA-001930-PIP01-16 | ||
Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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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 Apr 2017
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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 |
19 Dec 2016
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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 |
To demonstrate the non-inferiority of the vaccine seroresponse of meningococcal serogroups A, C, Y, and W following the administration of a booster dose of Meningococcal Polysaccharide (Serogroups A, C, Y and W) Tetanus Toxoid (MenACYW) conjugate vaccine compared to those observed following the administration of a booster dose of a Menactra® in subjects who were first vaccinated with 1 dose of a quadrivalent meningococcal vaccine 4 to 10 years before the booster dose.
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Protection of trial subjects |
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 were also available on site in case of any immediate allergic reactions.
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Background therapy |
- | ||
Evidence for comparator |
Menactra® was used as active treatment control. | ||
Actual start date of recruitment |
15 Apr 2016
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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 |
United States: 810
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Worldwide total number of subjects |
810
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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) |
0
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Children (2-11 years) |
0
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Adolescents (12-17 years) |
427
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Adults (18-64 years) |
383
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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 |
Study subjects were enrolled in 30 centers in the United States and Puerto Rico from 15 April 2016 to 02 August 2016. | ||||||||||||||||||||||||
Pre-assignment
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Screening details |
A total of 810 subjects who met all of the inclusion criteria and none of the exclusion criteria were enrolled and randomized in the study. | ||||||||||||||||||||||||
Period 1
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Period 1 title |
Overall Period
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Is this the baseline period? |
Yes | ||||||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | ||||||||||||||||||||||||
Roles blinded |
Subject, Investigator, Assessor | ||||||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Group 1: MenACYW Conjugate Vaccine | ||||||||||||||||||||||||
Arm description |
Healthy, meningococcal vaccine-primed adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of a MenACYW conjugate vaccine. | ||||||||||||||||||||||||
Arm type |
Experimental | ||||||||||||||||||||||||
Investigational medicinal product name |
MenACYW conjugate vaccine: Meningococcal Polysaccharide (Serogroups A, C, Y, and W-135) Tetanus Toxoid Conjugate Vaccine
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular, single dose on Day 0.
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Arm title
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Group 2: Menactra ® | ||||||||||||||||||||||||
Arm description |
Healthy, meningococcal- vaccine-primed adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of Menactra ® vaccine. | ||||||||||||||||||||||||
Arm type |
Active comparator | ||||||||||||||||||||||||
Investigational medicinal product name |
Menactra ® : Meningococcal (Groups A, C, Y and W-135) Polysaccharide Diphtheria Toxoid Conjugate Vaccine
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Solution for injection
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Routes of administration |
Intramuscular use
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Dosage and administration details |
0.5 mL, intramuscular, single dose on Day 0.
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Baseline characteristics reporting groups
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Reporting group title |
Group 1: MenACYW Conjugate Vaccine
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Reporting group description |
Healthy, meningococcal vaccine-primed adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of a MenACYW conjugate vaccine. | ||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Group 2: Menactra ®
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Reporting group description |
Healthy, meningococcal- vaccine-primed adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of Menactra ® vaccine. | ||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Group 1: MenACYW Conjugate Vaccine
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Reporting group description |
Healthy, meningococcal vaccine-primed adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of a MenACYW conjugate vaccine. | ||
Reporting group title |
Group 2: Menactra ®
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Reporting group description |
Healthy, meningococcal- vaccine-primed adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of Menactra ® vaccine. |
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End point title |
Percentage of Subjects With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine | ||||||||||||||||||||||||
End point description |
The serum bactericidal assay using human complement (hSBA) vaccine seroresponse for serogroups A, C, Y, and W was defined as post-vaccination hSBA titers >= 1:16 for subjects with pre-vaccination hSBA titers < 1:8 or at least a 4-fold increase in hSBA titers from pre- to post-vaccination for subjects with pre-vaccination hSBA titers >= 1:8. Analysis was performed on Per-Protocol Analysis Set-2 (PPAS2) defined for evaluating the immune response of MenACYW vaccine measured by hSBA assessed at Day 30 after vaccination.
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End point type |
Primary
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End point timeframe |
Day 30 (post-vaccination)
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Statistical analysis title |
Serogroup A | ||||||||||||||||||||||||
Statistical analysis description |
95% confidence interval (CI) of the difference was calculated from the Wilson Score Method without continuity correction. If the lower limit of the 2-sided 95% CI of the difference between the 2 proportions was > -10%, the non- inferiority assumption was rejected.
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Comparison groups |
Group 1: MenACYW Conjugate Vaccine v Group 2: Menactra ®
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Number of subjects included in analysis |
773
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority | ||||||||||||||||||||||||
Method |
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Parameter type |
Percentage Difference | ||||||||||||||||||||||||
Point estimate |
5
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Confidence interval |
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level |
95% | ||||||||||||||||||||||||
sides |
2-sided
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lower limit |
0.735 | ||||||||||||||||||||||||
upper limit |
9.38 | ||||||||||||||||||||||||
Statistical analysis title |
Serogroup C | ||||||||||||||||||||||||
Statistical analysis description |
95% CI of the difference was calculated from the Wilson Score Method without continuity correction. If the lower limit of the 2-sided 95% CI of the difference between the 2 proportions was > -10%, the non- inferiority assumption was rejected.
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Comparison groups |
Group 1: MenACYW Conjugate Vaccine v Group 2: Menactra ®
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Number of subjects included in analysis |
773
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority | ||||||||||||||||||||||||
Method |
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Parameter type |
Percentage Difference | ||||||||||||||||||||||||
Point estimate |
5.4
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Confidence interval |
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level |
95% | ||||||||||||||||||||||||
sides |
2-sided
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lower limit |
2.16 | ||||||||||||||||||||||||
upper limit |
8.76 | ||||||||||||||||||||||||
Statistical analysis title |
Serogroup Y | ||||||||||||||||||||||||
Statistical analysis description |
95% CI of the difference was calculated from the Wilson Score Method without continuity correction. If the lower limit of the 2-sided 95% CI of the difference between the 2 proportions was > -10%, the non- inferiority assumption was rejected.
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Comparison groups |
Group 1: MenACYW Conjugate Vaccine v Group 2: Menactra ®
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Number of subjects included in analysis |
773
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority | ||||||||||||||||||||||||
Method |
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Parameter type |
Percentage Difference | ||||||||||||||||||||||||
Point estimate |
1.8
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Confidence interval |
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level |
95% | ||||||||||||||||||||||||
sides |
2-sided
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lower limit |
-0.907 | ||||||||||||||||||||||||
upper limit |
4.55 | ||||||||||||||||||||||||
Statistical analysis title |
Serogroup W | ||||||||||||||||||||||||
Statistical analysis description |
95% CI of the difference was calculated from the Wilson Score Method without continuity correction. If the lower limit of the 2-sided 95% CI of the difference between the 2 proportions was > -10%, the non- inferiority assumption was rejected.
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Comparison groups |
Group 1: MenACYW Conjugate Vaccine v Group 2: Menactra ®
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Number of subjects included in analysis |
773
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Analysis specification |
Pre-specified
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Analysis type |
non-inferiority | ||||||||||||||||||||||||
Method |
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Parameter type |
Percentage Difference | ||||||||||||||||||||||||
Point estimate |
7.4
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Confidence interval |
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level |
95% | ||||||||||||||||||||||||
sides |
2-sided
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lower limit |
4.3 | ||||||||||||||||||||||||
upper limit |
10.9 |
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End point title |
Percentage of Subjects With Seroresponse to Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine at Day 06 After Vaccination | ||||||||||||||||||||||||
End point description |
The hSBA vaccine seroresponse for serogroups A, C, Y, and W was defined as post-vaccination hSBA titers >= 1:16 for subjects with pre-vaccination hSBA titers < 1:8 or at least a 4-fold increase in hSBA titers from pre- to post-vaccination for subjects with pre-vaccination hSBA titers >= 1:8. Analysis was performed on Per-Protocol Analysis Set-1 (PPAS1) defined for evaluating the immune response of MenACYW vaccine measured by hSBA assessed at Day 06 after vaccination.
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End point type |
Secondary
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End point timeframe |
Day 06 (post-vaccination)
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No statistical analyses for this end point |
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End point title |
Geometric Mean Titers (GMTs) Against Meningococcal Serogroups A, C, Y, and W Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine | ||||||||||||||||||||||||
End point description |
Meningococcal antibody responses against Serogroups A, C, Y, and W were measured by hSBA. Analysis was performed on PPAS2.
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End point type |
Secondary
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End point timeframe |
Day 30 (post-vaccination)
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No statistical analyses for this end point |
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End point title |
Number of Subjects With Solicited Injection Site Reactions or Systemic Reactions Following Vaccination With Either MenACYW Conjugate Vaccine or Menactra® Vaccine | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
End point description |
Solicited injection site reactions: Pain (Grade 1: no interference with activity, Grade 2: some interference with activity, Grade 3: significantly prevent daily activity), erythema and swelling (Grade 1: >=25 mm to <= 50 mm, Grade 2: >=51 to <=100 mm, Grade 3: > 100 mm). Solicited systemic reactions: Fever (Grade 1: >=38.0 degree Celsius (°C) to <=38.4°C, Grade 2: >=38.5°C to <=38.9 °C, Grade 3: >= 39°C), headache, malaise, and myalgia. Number of subjects with any of the Grade 1, 2 or 3 solicited injection-site and systemic reactions were reported. Analysis was performed on Safety Analysis Set which included subjects who have received at least one dose of the study vaccine and have any safety data available. Here 'n' signifies number of subjects with available data for specified category,for each arm respectively.
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End point type |
Secondary
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End point timeframe |
Within 7 days post-vaccination
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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 (AE) data were collected from Day 0 up to Day 30 post-vaccination. Solicited Reaction (SR) were collected from Day 0 up to Day 7 post-vaccination.
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Adverse event reporting additional description |
A SR was an AE that was prelisted (i.e., solicited) in the electronic case report form (eCRF) and considered to be related to vaccination (adverse drug reaction). An unsolicited AE was an observed AE that did not fulfill the conditions prelisted in the eCRF (i.e., solicited) in terms of symptom and/or onset post-vaccination. Safety Analysis Set.
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Assessment type |
Systematic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
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Dictionary name |
MedDRA | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
18.0
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Reporting groups
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Reporting group title |
Group 1: MenACYW Conjugate Vaccine
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Reporting group description |
Healthy, meningococcal-vaccine naive adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of a MenACYW conjugate vaccine. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Group 2: Menactra ®
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Reporting group description |
Healthy, meningococcal-vaccine naive adolescents (>= 15 to < 18 years) or adults (>= 18 years) received a single dose of Menactra vaccine. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Frequency threshold for reporting non-serious adverse events: 5% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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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15 Jan 2016 |
Following amendments were made: Clarified that subjects could have received only 1 dose of a quadrivalent meningococcal conjugate vaccine; Clarified actions to be taken if a subject came in at the end of the Day 30 visit window but had received antibiotic therapy within the 3 days before the visit. |
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25 Mar 2016 |
Provided the batch number of the investigational product; clarified the vaccination history of potential subjects; updated the presentation of the definition of hSBA vaccine seroresponse after feedback received from the Center for Biologics Evaluation and Research (CBER), US Food and Drug Administration (FDA); clarified the location of the laboratories for hSBA and serum bactericidal assay using baby rabbit complement (rSBA) testing; clarified the higher priority of hSBA sample testing. |
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29 Nov 2016 |
Provided the identity and information for the Coordinating Investigator. |
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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 |