Trial Outcomes & Findings for Immunogenicity and Safety of GSK Biologicals' Infanrix/Hib in Children (NCT NCT00696423)

NCT ID: NCT00696423

Last Updated: 2018-06-06

Results Overview

Geometric mean concentrations are given in microgram per milliliter (μg/mL).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

467 participants

Primary outcome timeframe

One month after booster vaccination

Results posted on

2018-06-06

Participant Flow

Participant milestones

Participant milestones
Measure
Infanrix/Hib Single Injection Group
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Overall Study
STARTED
244
223
Overall Study
COMPLETED
244
218
Overall Study
NOT COMPLETED
0
5

Reasons for withdrawal

Reasons for withdrawal
Measure
Infanrix/Hib Single Injection Group
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Overall Study
Lost to Follow-up
0
5

Baseline Characteristics

Immunogenicity and Safety of GSK Biologicals' Infanrix/Hib in Children

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Infanrix/Hib Single Injection Group
n=244 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=223 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Total
n=467 Participants
Total of all reporting groups
Age, Continuous
19.2 months
STANDARD_DEVIATION 0.79 • n=5 Participants
19.2 months
STANDARD_DEVIATION 0.75 • n=7 Participants
19.2 months
STANDARD_DEVIATION 0.77 • n=5 Participants
Sex: Female, Male
Female
113 Participants
n=5 Participants
111 Participants
n=7 Participants
224 Participants
n=5 Participants
Sex: Female, Male
Male
131 Participants
n=5 Participants
112 Participants
n=7 Participants
243 Participants
n=5 Participants

PRIMARY outcome

Timeframe: One month after booster vaccination

Population: Analysis was performed on the According To Protocol (ATP) cohort for immunogenicity.

Geometric mean concentrations are given in microgram per milliliter (μg/mL).

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=238 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=216 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-polyribosyl-ribitol-phosphate (PRP) Antibody Concentrations
34.428 μg/mL
Interval 29.452 to 40.244
132.075 μg/mL
Interval 112.563 to 154.97

PRIMARY outcome

Timeframe: One month after booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Geometric mean concentrations are given in international Unit per milliliter (IU/mL).

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=237 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=214 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-diphtheria Toxoid Antibody Concentrations
0.945 IU/mL
Interval 0.905 to 0.987
0.926 IU/mL
Interval 0.887 to 0.966

PRIMARY outcome

Timeframe: One month after booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Geometric mean concentrations are given in IU/mL.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=237 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=214 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-tetanus Toxoid Antibody Concentrations
7.455 IU/mL
Interval 6.881 to 8.077
10.104 IU/mL
Interval 9.08 to 11.242

PRIMARY outcome

Timeframe: One month after booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Geometric mean concentrations are given in Enzyme-Linked Immuno Sorbent Assay (ELISA) unit per milliliter (EL.U/mL).

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=239 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=216 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-pertussis Toxoid (PT), Anti-filamentous Haemagglutinin (FHA) and Anti-pertactin (PRN) Antibody Concentrations
Anti-PT
52.2 EL.U/mL
Interval 48.1 to 56.7
55.8 EL.U/mL
Interval 51.7 to 60.3
Anti-pertussis Toxoid (PT), Anti-filamentous Haemagglutinin (FHA) and Anti-pertactin (PRN) Antibody Concentrations
Anti-FHA
93.3 EL.U/mL
Interval 82.6 to 105.4
92.8 EL.U/mL
Interval 83.3 to 103.4
Anti-pertussis Toxoid (PT), Anti-filamentous Haemagglutinin (FHA) and Anti-pertactin (PRN) Antibody Concentrations
Anti-PRN
235.9 EL.U/mL
Interval 208.7 to 266.5
241.6 EL.U/mL
Interval 213.6 to 273.2

PRIMARY outcome

Timeframe: One month after booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Assay cut-offs indicating seroprotection or seropositivity for the different antigens were the following: anti-PRP antibody concentrations ≥ 0.15 µg/mL, anti-diphtheria and anti-tetanus antibody concentrations ≥ 0.1 IU/mL, anti-PT, anti-FHA and anti-PRN antibody concentrations ≥ 20 EL.U/mL.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=239 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=216 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seroprotection against PRP (n=238, 216)
238 subjects
216 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seroprotection against diphtheria (n=237, 214)
237 subjects
214 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seroprotection against tetanus (n=237, 214)
237 subjects
214 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seropositivity for anti-PT (n=239, 216)
226 subjects
213 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seropositivity for anti-FHA (n=239, 216)
238 subjects
216 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seropositivity for anti-PRN (n=239, 216)
239 subjects
215 subjects

SECONDARY outcome

Timeframe: Before booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Geometric mean concentrations are given in μg/mL.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=237 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=216 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-PRP Antibody Concentrations
1.240 μg/mL
Interval 1.085 to 1.418
2.461 μg/mL
Interval 2.136 to 2.837

SECONDARY outcome

Timeframe: Before booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Geometric mean concentrations are given in IU/mL.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=237 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=214 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-diphtheria Toxoid Antibody Concentrations
0.055 IU/mL
Interval 0.053 to 0.058
0.054 IU/mL
Interval 0.052 to 0.057

SECONDARY outcome

Timeframe: Before booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Geometric mean concentrations are given in IU/mL.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=237 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=214 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-tetanus Toxoid Antibody Concentrations
0.219 IU/mL
Interval 0.195 to 0.247
0.311 IU/mL
Interval 0.274 to 0.353

SECONDARY outcome

Timeframe: Before booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Geometric mean concentrations are given in EL.U/mL.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=239 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=216 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Anti-PT, Anti-FHA and Anti-PRN Antibody Concentrations
Anti-PT
10.0 EL.U/mL
Interval 10.0 to 10.0
10.0 EL.U/mL
Interval 10.0 to 10.1
Anti-PT, Anti-FHA and Anti-PRN Antibody Concentrations
Anti-FHA
10.1 EL.U/mL
Interval 10.0 to 10.2
10.3 EL.U/mL
Interval 9.9 to 10.7
Anti-PT, Anti-FHA and Anti-PRN Antibody Concentrations
Anti-PRN
10.2 EL.U/mL
Interval 10.0 to 10.4
10.3 EL.U/mL
Interval 10.0 to 10.5

SECONDARY outcome

Timeframe: Before booster vaccination

Population: Analysis was performed on the ATP cohort for immunogenicity.

Assay cut-offs indicating seroprotection or seropositivity for the different antigens were the following: anti-PRP antibody concentrations ≥ 0.15 µg/mL, anti-diphtheria and anti-tetanus antibody concentrations ≥ 0.1 IU/mL, anti-PT, anti-FHA and anti-PRN antibody concentrations ≥ 20 EL.U/mL.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=239 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=216 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seroprotection against PRP (n= 237, 216)
236 subjects
216 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seroprotection against diphtheria (n= 237, 214)
21 subjects
16 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seroprotection against tetanus (n= 237, 214)
209 subjects
198 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seropositivity for anti-PT (n= 239, 216)
0 subjects
1 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seropositivity for anti-FHA (n= 239, 216)
2 subjects
3 subjects
The Number of Subjects Seroprotected for Anti-PRP, Anti-diphtheria and Anti-tetanus Antibodies and Seropositive for Anti-PT, Anti-FHA and Anti-PRN Antibodies
Seropositivity for anti-PRN (n= 239, 216)
3 subjects
4 subjects

SECONDARY outcome

Timeframe: During the 4-day follow-up period after booster vaccination

Population: Analysis was performed on subjects from the Total Vaccinated Cohort with a documented dose.

Solicited local symptoms assessed include pain, redness and swelling. Solicited general symptoms assessed include drowsiness, fever, irritability, and loss of appetite.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=244 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=220 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Number of Subjects Reporting Solicited Local and General Symptoms
Pain
26 subjects
26 subjects
Number of Subjects Reporting Solicited Local and General Symptoms
Redness
16 subjects
8 subjects
Number of Subjects Reporting Solicited Local and General Symptoms
Swelling
9 subjects
1 subjects
Number of Subjects Reporting Solicited Local and General Symptoms
Drowsiness
26 subjects
20 subjects
Number of Subjects Reporting Solicited Local and General Symptoms
Fever
73 subjects
93 subjects
Number of Subjects Reporting Solicited Local and General Symptoms
Irritability
43 subjects
46 subjects
Number of Subjects Reporting Solicited Local and General Symptoms
Loss of appetite
40 subjects
39 subjects

SECONDARY outcome

Timeframe: During the 31-day follow-up period after booster vaccination

An AE is any untoward medical occurrence in a clinical investigation subject, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=244 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=223 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Number of Subjects Reporting Unsolicited Adverse Events (AE)
66 subjects
56 subjects

SECONDARY outcome

Timeframe: During the 31-day follow-up period after booster vaccination

An SAE is any untoward medical occurrence that: results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in isability/incapacity, is a congenital anomaly/birth defect in the offspring of a study subject, or may evolve into one of the outcomes listed above.

Outcome measures

Outcome measures
Measure
Infanrix/Hib Single Injection Group
n=244 Participants
Subjects received 1 dose of Infanrix extemporaneously mixed with Hiberix.
Infanrix + Hiberix Separate Injection Group
n=223 Participants
Subjects received two separate injections, one of Infanrix and one of Hiberix.
Number of Subjects Reporting Serious Adverse Events (SAE)
1 subjects
3 subjects

Adverse Events

Infanrix/Hib Single Injection Group

Serious events: 1 serious events
Other events: 133 other events
Deaths: 0 deaths

Infanrix + Hiberix Separate Injection Group

Serious events: 3 serious events
Other events: 127 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Infanrix/Hib Single Injection Group
n=244 participants at risk
Subjects received 1 dose of Infanrix™ extemporaneously mixed with Hiberix™.
Infanrix + Hiberix Separate Injection Group
n=223 participants at risk
Subjects received two separate injections, one of Infanrix™ and one of Hiberix™.
Infections and infestations
Bronchopneumonia
0.42%
1/240
0.90%
2/223
Infections and infestations
Bronchitis
0.00%
0/240
0.45%
1/223

Other adverse events

Other adverse events
Measure
Infanrix/Hib Single Injection Group
n=244 participants at risk
Subjects received 1 dose of Infanrix™ extemporaneously mixed with Hiberix™.
Infanrix + Hiberix Separate Injection Group
n=223 participants at risk
Subjects received two separate injections, one of Infanrix™ and one of Hiberix™.
General disorders
Pain at injection site
10.7%
26/244
11.7%
26/223
General disorders
Redness at injection site
6.6%
16/244
3.6%
8/223
General disorders
Drowsiness
10.7%
26/244
9.0%
20/223
General disorders
Fever
29.9%
73/244
41.7%
93/223
General disorders
Irritability
17.6%
43/244
20.6%
46/223
General disorders
Loss of appetite
16.4%
40/244
17.5%
39/223
Infections and infestations
Nasopharyngitis
16.0%
39/244
10.8%
24/223

Additional Information

GSK Response Center

GlaxoSmithKline

Phone: 866-435-7343

Results disclosure agreements

  • Principal investigator is a sponsor employee GSK agreements may vary with individual investigators, but will not prohibit any investigator from publishing. GSK supports the publication of results from all centers of a multi-center trial but requests that reports based on single-site data not precede the primary publication of the entire clinical trial.
  • Publication restrictions are in place

Restriction type: OTHER