A Clinical Trial of CSL's 2009 H1N1 Influenza Vaccine (CSL425) in Healthy Children

Sponsor
Seqirus (Industry)
Overall Status
Completed
CT.gov ID
NCT00940108
Collaborator
(none)
370
5
2
8
74
9.3

Study Details

Study Description

Brief Summary

The purpose of this study is to determine whether CSL425 is a safe and effective vaccine for eliciting an immune response to H1N1 influenza in healthy children.

Condition or Disease Intervention/Treatment Phase
  • Biological: CSL425
  • Biological: CSL425
Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
370 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose:
Prevention
Official Title:
A Phase II, Multicentre, Randomised, Observer-blind Study to Evaluate the Immunogenicity, Safety and Tolerability of CSL's 2009 H1N1 Influenza Vaccine (CSL425) in Healthy Children Aged >= 6 Months to < 9 Years.
Study Start Date :
Aug 1, 2009
Actual Primary Completion Date :
Oct 1, 2009
Actual Study Completion Date :
Apr 1, 2010

Arms and Interventions

Arm Intervention/Treatment
Experimental: CSL425 (15 mcg)

15 mcg of hemagglutinin antigen per dose. 0.25 mL intramuscular injection into the deltoid region of the arm on Day 0 and Day 21

Biological: CSL425
CSL's 2009 H1N1 Influenza Vaccine, thimerosal-free

Experimental: CSL425 (30 mcg)

30 mcg of hemagglutinin antigen per dose. 0.5 mL intramuscular injection into the deltoid region of the arm on Day 0 and Day 21

Biological: CSL425
CSL's 2009 H1N1 Influenza Vaccine, thimerosal-free

Outcome Measures

Primary Outcome Measures

  1. Haemagglutination Inhibition (HI) Antibody Titre Seroconversion Rate After the First Vaccination [Before and 21 days after the first vaccination]

    HI antibody titre seroconversion was defined as participants with a pre-vaccination titre of less than 1:10 achieving a post-vaccination HI antibody titre of 1:40 or more; or participants with a pre-vaccination HI titre of 1:10 or more achieving a four-fold or greater increase in post-vaccination HI titre.

  2. HI Antibody Titre Seroconversion Rate After the Second Vaccination [Before and 21 days after the second vaccination]

    HI antibody titre seroconversion was defined as participants with a pre-vaccination titre of less than 1:10 achieving a post-vaccination HI antibody titre of 1:40 or more; or participants with a pre-vaccination HI titre of 1:10 or more achieving a four-fold or greater increase in post-vaccination HI titre.

  3. Geometric Mean Fold Increase (GMFI) in the HI Antibody Titre After the First Vaccination [Before and 21 days after the first vaccination]

    GMFI in HI antibody titre was defined as the geometric mean of the fold increase in the post-vaccination antibody titre over the pre-vaccination antibody titre.

  4. GMFI in the HI Antibody Titre After the Second Vaccination [Before and 21 days after the second vaccination]

    GMFI in HI antibody titre was defined as the geometric mean of the fold increase in the post-vaccination antibody titre over the pre-vaccination antibody titre.

  5. Percentage of Participants Achieving a HI Antibody Titre of 1:40 or More After the First Vaccination [21 days after the first vaccination]

  6. Percentage of Participants Achieving a HI Antibody Titre of 1:40 or More After the Second Vaccination [21 days after the second vaccination]

Secondary Outcome Measures

  1. Frequency and Intensity of Solicited Adverse Events (AEs) After the First or Second Vaccination [During the 7 days after each vaccination]

    Solicited AEs included AEs that were specifically sought for. Grade 3 solicited AE definitions: Cried when limb was moved/spontaneously painful (Cohort A) or prevented normal daily activities (Cohort B) for injection site pain; Size > 100 mm for injection site redness and induration/swelling; Temperature > 103.1°F (39.5°C) for fevers; Prevented normal daily activities or required medical intervention for all other systemic AEs.

  2. Duration of Solicited AEs After the First Vaccination [During the 7 days after the first vaccination and up to Day 20 after the first vaccination if AE is ongoing at Day 7.]

    Solicited AEs included AEs that were specifically sought for.

  3. Duration of Solicited AEs After the Second Vaccination [During the 7 days after the second vaccination and up to Day 20 after the second vaccination if AE was ongoing at Day 7.]

    Solicited AEs included AEs that were specifically sought for.

  4. Incidence of Serious Adverse Events (SAEs), Adverse Events of Special Interest (AESIs), and New Onset of Chronic Illnesses (NOCIs) [Up to 180 days after the last vaccination]

    An AESI was defined as an AE for which the association with seasonal influenza vaccine was unclear. A NOCI was defined as the diagnosis of a new medical condition that was chronic in nature, including those potentially controllable by medication (eg, diabetes, asthma).

  5. Frequency and Intensity of Unsolicited Adverse Events After the First or Second Vaccination [During the 21 days after each vaccination; up to 180 days after the last vaccination for SAEs, AESIs, and NOCIs]

    Unsolicited AEs included AEs other than those specifically sought for. Grade 1 unsolicited AE definition: Easily tolerated and did not interfere with normal daily activities. Grade 2 unsolicited AE definition: Some interference with normal daily activities. Grade 3 unsolicited AE definition: Prevented normal daily activities.

Eligibility Criteria

Criteria

Ages Eligible for Study:
6 Months to 8 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • Male or female aged >= 6 months to < 9 years at the time of the first study vaccination.

  • For children < 3 years of age at the time of first vaccination, born at or after 36 weeks of gestation.

Exclusion Criteria:
  • Known hypersensitivity to a previous dose of influenza virus vaccine or allergy to eggs, chicken protein, thiomersal, neomycin, polymyxin, or any components of the Study Vaccine.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Study Site Westmead New South Wales Australia 2145
2 Study Site Brisbane Queensland Australia 4006
3 Study Site North Adelaide South Australia Australia 5006
4 Study Site Carlton Victoria Australia 3010
5 Study Site Subiaco Western Australia Australia 6027

Sponsors and Collaborators

  • Seqirus

Investigators

  • Study Director: Clinical Director Vaccines, Seqirus

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Seqirus
ClinicalTrials.gov Identifier:
NCT00940108
Other Study ID Numbers:
  • CSLCT-CAL-09-60
First Posted:
Jul 15, 2009
Last Update Posted:
Jun 28, 2018
Last Verified:
Apr 1, 2018
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail One randomized participant withdrew consent prior to vaccine administration and was not included in the participant flow data or in any analysis population.
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Period Title: Overall Study
STARTED 82 80 103 104
COMPLETED 77 71 100 99
NOT COMPLETED 5 9 3 5

Baseline Characteristics

Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B Total
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Total of all reporting groups
Overall Participants 82 80 103 104 369
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]
1.68
(0.67)
1.73
(0.74)
5.78
(1.69)
5.66
(1.74)
3.96
(2.42)
Sex: Female, Male (Count of Participants)
Female
41
50%
41
51.3%
53
51.5%
49
47.1%
184
49.9%
Male
41
50%
39
48.8%
50
48.5%
55
52.9%
185
50.1%

Outcome Measures

1. Primary Outcome
Title Haemagglutination Inhibition (HI) Antibody Titre Seroconversion Rate After the First Vaccination
Description HI antibody titre seroconversion was defined as participants with a pre-vaccination titre of less than 1:10 achieving a post-vaccination HI antibody titre of 1:40 or more; or participants with a pre-vaccination HI titre of 1:10 or more achieving a four-fold or greater increase in post-vaccination HI titre.
Time Frame Before and 21 days after the first vaccination

Outcome Measure Data

Analysis Population Description
The Evaluable Population (for the first vaccination) comprised all randomised participants who received the first study vaccination; provided both pre- and post-vaccination blood samples; were not excluded from analyses (eg, for the use of a prohibited medication or a laboratory-confirmed 2009 H1N1 infection between Visit 1 and Visit 3).
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 76 73 98 99
Number (95% Confidence Interval) [percentage of participants]
88.2
107.6%
97.3
121.6%
85.7
83.2%
91.9
88.4%
2. Primary Outcome
Title HI Antibody Titre Seroconversion Rate After the Second Vaccination
Description HI antibody titre seroconversion was defined as participants with a pre-vaccination titre of less than 1:10 achieving a post-vaccination HI antibody titre of 1:40 or more; or participants with a pre-vaccination HI titre of 1:10 or more achieving a four-fold or greater increase in post-vaccination HI titre.
Time Frame Before and 21 days after the second vaccination

Outcome Measure Data

Analysis Population Description
The Evaluable Population (for the second vaccination) comprised all randomised participants who received the second study vaccination; provided both pre- and post-vaccination blood samples; were not excluded from analyses (eg, for the use of a prohibited medication or a laboratory-confirmed 2009 H1N1 infection between Visit 1 and Visit 3).
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 64 69 95 96
Number (95% Confidence Interval) [percentage of participants]
96.9
118.2%
98.6
123.3%
97.9
95%
96.9
93.2%
3. Primary Outcome
Title Geometric Mean Fold Increase (GMFI) in the HI Antibody Titre After the First Vaccination
Description GMFI in HI antibody titre was defined as the geometric mean of the fold increase in the post-vaccination antibody titre over the pre-vaccination antibody titre.
Time Frame Before and 21 days after the first vaccination

Outcome Measure Data

Analysis Population Description
The Evaluable Population (for the first vaccination) comprised all randomised participants who received the first study vaccination; provided both pre- and post-vaccination blood samples; were not excluded from analyses (eg, for the use of a prohibited medication or a laboratory-confirmed 2009 H1N1 infection between Visit 1 and Visit 3).
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 76 73 98 99
Geometric Mean (95% Confidence Interval) [geometric mean fold increase]
13.95
22.17
13.25
15.93
4. Primary Outcome
Title GMFI in the HI Antibody Titre After the Second Vaccination
Description GMFI in HI antibody titre was defined as the geometric mean of the fold increase in the post-vaccination antibody titre over the pre-vaccination antibody titre.
Time Frame Before and 21 days after the second vaccination

Outcome Measure Data

Analysis Population Description
The Evaluable Population (for the second vaccination) comprised all randomised participants who received the second study vaccination; provided both pre- and post-vaccination blood samples; were not excluded from analyses (eg, for the use of a prohibited medication or a laboratory-confirmed 2009 H1N1 infection between Visit 1 and Visit 3).
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 64 69 95 96
Geometric Mean (95% Confidence Interval) [geometric mean fold increase]
57.64
72.93
37.48
37.06
5. Primary Outcome
Title Percentage of Participants Achieving a HI Antibody Titre of 1:40 or More After the First Vaccination
Description
Time Frame 21 days after the first vaccination

Outcome Measure Data

Analysis Population Description
The Evaluable Population (for the first vaccination) comprised all randomised participants who received the first study vaccination; provided both pre- and post-vaccination blood samples; were not excluded from analyses (eg, for the use of a prohibited medication or a laboratory-confirmed 2009 H1N1 infection between Visit 1 and Visit 3).
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 76 73 98 99
Number (95% Confidence Interval) [percentage of participants]
92.1
112.3%
100.0
125%
92.9
90.2%
96.0
92.3%
6. Primary Outcome
Title Percentage of Participants Achieving a HI Antibody Titre of 1:40 or More After the Second Vaccination
Description
Time Frame 21 days after the second vaccination

Outcome Measure Data

Analysis Population Description
The Evaluable Population (for the second vaccination) comprised all randomised participants who received the second study vaccination; provided both pre- and post-vaccination blood samples; were not excluded from analyses (eg, for the use of a prohibited medication or a laboratory-confirmed 2009 H1N1 infection between Visit 1 and Visit 3).
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 64 69 95 96
Number (95% Confidence Interval) [percentage of participants]
100.0
122%
100.0
125%
100.0
97.1%
100.0
96.2%
7. Secondary Outcome
Title Frequency and Intensity of Solicited Adverse Events (AEs) After the First or Second Vaccination
Description Solicited AEs included AEs that were specifically sought for. Grade 3 solicited AE definitions: Cried when limb was moved/spontaneously painful (Cohort A) or prevented normal daily activities (Cohort B) for injection site pain; Size > 100 mm for injection site redness and induration/swelling; Temperature > 103.1°F (39.5°C) for fevers; Prevented normal daily activities or required medical intervention for all other systemic AEs.
Time Frame During the 7 days after each vaccination

Outcome Measure Data

Analysis Population Description
The Safety Population comprised all participants who received at least one dose of the vaccine and provided follow-up safety data.
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 82 80 103 104
Any solicited local AE
69.5
84.8%
63.8
79.8%
68.0
66%
71.2
68.5%
Any pain at injection site
48.8
59.5%
43.8
54.8%
59.2
57.5%
64.4
61.9%
Grade 3 pain at injection site
1.2
1.5%
1.3
1.6%
0
0%
1.0
1%
Any redness at injection site
53.7
65.5%
38.8
48.5%
37.9
36.8%
37.5
36.1%
Grade 3 redness at injection site
0
0%
1.3
1.6%
2.9
2.8%
2.9
2.8%
Any swelling/induration at injection site
30.5
37.2%
32.5
40.6%
25.2
24.5%
26.9
25.9%
Grade 3 swelling/induration at injection site
0
0%
2.5
3.1%
0
0%
4.8
4.6%
Any solicited systemic AE
79.3
96.7%
93.8
117.3%
54.4
52.8%
61.5
59.1%
Any nausea/vomiting
13.4
16.3%
30.0
37.5%
15.5
15%
20.2
19.4%
Grade 3 nausea/vomiting
1.2
1.5%
1.3
1.6%
0
0%
1.0
1%
Any diarrhoea
26.8
32.7%
32.5
40.6%
12.6
12.2%
12.5
12%
Grade 3 diarrhoea
1.2
1.5%
0
0%
0
0%
0
0%
Any loss of appetite
40.2
49%
50.0
62.5%
NA
NaN
NA
NaN
Grade 3 loss of appetite
1.2
1.5%
0
0%
NA
NaN
NA
NaN
Any irritability
63.4
77.3%
72.5
90.6%
NA
NaN
NA
NaN
Grade 3 irritability
2.4
2.9%
1.3
1.6%
NA
NaN
NA
NaN
Any fever
50.0
61%
71.3
89.1%
20.4
19.8%
29.8
28.7%
Grade 3 fever
1.2
1.5%
8.8
11%
0
0%
2.9
2.8%
Any headache
NA
NaN
NA
NaN
27.2
26.4%
23.1
22.2%
Grade 3 headache
NA
NaN
NA
NaN
0
0%
1.0
1%
Any muscle ache
NA
NaN
NA
NaN
15.5
15%
22.1
21.3%
Grade 3 muscle ache
NA
NaN
NA
NaN
0
0%
1.0
1%
Any malaise
NA
NaN
NA
NaN
19.4
18.8%
26.9
25.9%
Grade 3 malaise
NA
NaN
NA
NaN
0
0%
1.9
1.8%
8. Secondary Outcome
Title Duration of Solicited AEs After the First Vaccination
Description Solicited AEs included AEs that were specifically sought for.
Time Frame During the 7 days after the first vaccination and up to Day 20 after the first vaccination if AE is ongoing at Day 7.

Outcome Measure Data

Analysis Population Description
The Safety Population comprised all participants who received at least one dose of the vaccine and provided follow-up safety data.
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 82 80 103 104
Pain at injection site
1.48
(0.677)
1.52
(0.823)
1.91
(1.221)
1.80
(1.016)
Redness at injection site
2.08
(1.382)
2.23
(1.602)
2.26
(1.347)
2.00
(1.134)
Swelling/induration at injection site
1.88
(0.957)
1.64
(0.745)
1.60
(0.737)
2.04
(1.136)
Nausea/vomiting
1.33
(0.500)
1.05
(0.213)
1.18
(0.405)
1.53
(1.837)
Diarrhoea
1.67
(1.328)
1.55
(0.945)
1.11
(0.333)
1.17
(0.577)
Loss of appetite
2.32
(1.906)
1.97
(1.447)
NA
(NA)
NA
(NA)
Irritability
1.78
(1.560)
1.73
(1.574)
NA
(NA)
NA
(NA)
Fever
1.77
(1.547)
1.52
(1.079)
1.40
(0.737)
1.54
(1.319)
Headache
NA
(NA)
NA
(NA)
2.04
(2.911)
1.63
(1.149)
Muscle ache
NA
(NA)
NA
(NA)
1.45
(0.688)
1.86
(2.175)
Malaise
NA
(NA)
NA
(NA)
1.60
(0.910)
1.69
(1.966)
9. Secondary Outcome
Title Duration of Solicited AEs After the Second Vaccination
Description Solicited AEs included AEs that were specifically sought for.
Time Frame During the 7 days after the second vaccination and up to Day 20 after the second vaccination if AE was ongoing at Day 7.

Outcome Measure Data

Analysis Population Description
The Safety Population comprised all participants who received at least one dose of the vaccine and provided follow-up safety data.
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 77 71 100 99
Pain at injection site
1.67
(0.966)
1.64
(1.002)
1.90
(1.179)
1.80
(1.040)
Redness at injection site
1.69
(1.004)
2.14
(1.037)
1.92
(1.055)
1.70
(0.822)
Swelling/induration at injection site
1.74
(0.872)
2.32
(1.108)
2.24
(1.348)
2.27
(1.751)
Nausea/vomiting
5.00
(8.832)
1.00
(0.000)
1.43
(0.787)
1.11
(0.333)
Diarrhoea
3.40
(3.777)
1.25
(0.452)
1.40
(0.894)
2.00
(1.000)
Loss of appetite
3.15
(4.475)
1.73
(0.883)
NA
(NA)
NA
(NA)
Irritability
2.57
(2.410)
2.10
(1.533)
NA
(NA)
NA
(NA)
Fever
2.14
(3.005)
1.63
(1.165)
1.54
(0.877)
1.67
(1.414)
Headache
NA
(NA)
NA
(NA)
1.33
(0.686)
1.73
(2.412)
Muscle ache
NA
(NA)
NA
(NA)
1.60
(0.516)
1.29
(0.756)
Malaise
NA
(NA)
NA
(NA)
1.20
(0.422)
2.00
(1.826)
10. Secondary Outcome
Title Incidence of Serious Adverse Events (SAEs), Adverse Events of Special Interest (AESIs), and New Onset of Chronic Illnesses (NOCIs)
Description An AESI was defined as an AE for which the association with seasonal influenza vaccine was unclear. A NOCI was defined as the diagnosis of a new medical condition that was chronic in nature, including those potentially controllable by medication (eg, diabetes, asthma).
Time Frame Up to 180 days after the last vaccination

Outcome Measure Data

Analysis Population Description
The Safety Population comprised all participants who received at least one dose of the vaccine and provided follow-up safety data.
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 82 80 103 104
At least one SAE
4.9
6%
1.3
1.6%
1.0
1%
1.0
1%
Related SAE
0
0%
0
0%
0
0%
1.0
1%
At least one AESI
2.4
2.9%
1.3
1.6%
0
0%
0
0%
Related AESI
0
0%
0
0%
0
0%
0
0%
At least one NOCI
1.2
1.5%
3.8
4.8%
1.9
1.8%
0
0%
Related NOCI
0
0%
0
0%
0
0%
0
0%
11. Secondary Outcome
Title Frequency and Intensity of Unsolicited Adverse Events After the First or Second Vaccination
Description Unsolicited AEs included AEs other than those specifically sought for. Grade 1 unsolicited AE definition: Easily tolerated and did not interfere with normal daily activities. Grade 2 unsolicited AE definition: Some interference with normal daily activities. Grade 3 unsolicited AE definition: Prevented normal daily activities.
Time Frame During the 21 days after each vaccination; up to 180 days after the last vaccination for SAEs, AESIs, and NOCIs

Outcome Measure Data

Analysis Population Description
The Safety Population comprised all participants who received at least one dose of the vaccine and provided follow-up safety data.
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
Measure Participants 82 80 103 104
At least one unsolicited AE
78.0
95.1%
82.5
103.1%
67.0
65%
76.0
73.1%
Grade 1 unsolicited AE
26.8
32.7%
33.8
42.3%
27.2
26.4%
37.5
36.1%
Grade 2 unsolicited AE
41.5
50.6%
41.3
51.6%
37.9
36.8%
26.9
25.9%
Grade 3 unsolicited AE
9.8
12%
7.5
9.4%
1.9
1.8%
11.5
11.1%

Adverse Events

Time Frame For SAEs: up to 180 days after the last vaccination. For Other AEs: solicited AEs: during the 7 days after each vaccination; unsolicited AEs: during the 21 days after each vaccination; up to 180 days after the last vaccination for AESIs and NOCIs.
Adverse Event Reporting Description Unsolicited AEs presented in the organ system "General disorders" with a footnote of "MedDRA V13.0", were collected under the MedDRA System Organ Class (SOC) 'General disorders and administration site conditions'. Solicited AEs are presented in the organ system "General disorders" and were not collected under the MedDRA SOC.
Arm/Group Title CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Arm/Group Description Participants aged 6 months to less than 3 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 6 months to less than 3 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (15 mcg of haemagglutinin antigen per 0.25 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21. Participants aged 3 years to less than 9 years received two doses of CSL425 (30 mcg of haemagglutinin antigen per 0.5 mL dose) by intramuscular injection into the deltoid region of the arm on Day 0 and Day 21.
All Cause Mortality
CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN) / (NaN) / (NaN)
Serious Adverse Events
CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 4/82 (4.9%) 1/80 (1.3%) 1/103 (1%) 1/104 (1%)
General disorders
Pyrexia 0/82 (0%) 0 0/80 (0%) 0 0/103 (0%) 0 1/104 (1%) 1
Infections and infestations
Gastroenteritis viral 1/82 (1.2%) 1 0/80 (0%) 0 0/103 (0%) 0 0/104 (0%) 0
Lobar pneumonia 0/82 (0%) 0 0/80 (0%) 0 1/103 (1%) 1 0/104 (0%) 0
Nervous system disorders
Convulsion 2/82 (2.4%) 2 0/80 (0%) 0 0/103 (0%) 0 0/104 (0%) 0
Respiratory, thoracic and mediastinal disorders
Asthma 1/82 (1.2%) 2 0/80 (0%) 0 0/103 (0%) 0 0/104 (0%) 0
Vascular disorders
Kawasaki's disease 0/82 (0%) 0 1/80 (1.3%) 1 0/103 (0%) 0 0/104 (0%) 0
Other (Not Including Serious) Adverse Events
CSL425 (15 mcg) Cohort A CSL425 (30 mcg) Cohort A CSL425 (15 mcg) Cohort B CSL425 (30 mcg) Cohort B
Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 81/82 (98.8%) 78/80 (97.5%) 91/103 (88.3%) 96/104 (92.3%)
Ear and labyrinth disorders
Ear pain 0/82 (0%) 0 2/80 (2.5%) 2 8/103 (7.8%) 8 4/104 (3.8%) 5
Gastrointestinal disorders
Abdominal pain 1/82 (1.2%) 1 0/80 (0%) 0 4/103 (3.9%) 4 1/104 (1%) 1
Diarrhoea 3/82 (3.7%) 3 3/80 (3.8%) 3 3/103 (2.9%) 3 2/104 (1.9%) 2
Abdominal pain upper 0/82 (0%) 0 1/80 (1.3%) 1 1/103 (1%) 1 3/104 (2.9%) 3
Teething 14/82 (17.1%) 18 12/80 (15%) 19 0/103 (0%) 0 0/104 (0%) 0
Vomiting 0/82 (0%) 0 4/80 (5%) 4 2/103 (1.9%) 2 2/104 (1.9%) 2
General disorders
Influenza-like illness 12/82 (14.6%) 14 10/80 (12.5%) 10 7/103 (6.8%) 8 9/104 (8.7%) 9
Pyrexia 10/82 (12.2%) 10 4/80 (5%) 4 3/103 (2.9%) 4 2/104 (1.9%) 2
Malaise 0/82 (0%) 0 2/80 (2.5%) 2 3/103 (2.9%) 3 0/104 (0%) 0
Fatigue 0/82 (0%) 0 2/80 (2.5%) 2 0/103 (0%) 0 0/104 (0%) 0
Pain at Injection Site 40/82 (48.8%) 52 35/80 (43.8%) 47 61/103 (59.2%) 96 67/104 (64.4%) 105
Redness at Injection Site 44/82 (53.7%) 66 31/80 (38.8%) 44 39/103 (37.9%) 53 39/104 (37.5%) 52
Swelling/Induration at Injection Site 25/82 (30.5%) 35 26/80 (32.5%) 33 26/103 (25.2%) 32 28/104 (26.9%) 40
Nausea/Vomiting 11/82 (13.4%) 15 24/80 (30%) 26 16/103 (15.5%) 18 21/104 (20.2%) 28
Diarrhoea 22/82 (26.8%) 28 26/80 (32.5%) 32 13/103 (12.6%) 14 13/104 (12.5%) 15
Loss of Appetite 33/82 (40.2%) 48 40/80 (50%) 55 0/0 (NaN) 0 0/0 (NaN) 0
Irritability 52/82 (63.4%) 92 58/80 (72.5%) 99 0/0 (NaN) 0 0/0 (NaN) 0
Fever 41/82 (50%) 51 57/80 (71.3%) 75 21/103 (20.4%) 28 31/104 (29.8%) 37
Headache 0/0 (NaN) 0 0/0 (NaN) 0 28/103 (27.2%) 42 24/104 (23.1%) 38
Muscle Ache (Myalgia) 0/0 (NaN) 0 0/0 (NaN) 0 16/103 (15.5%) 21 23/104 (22.1%) 28
Malaise 0/0 (NaN) 0 0/0 (NaN) 0 20/103 (19.4%) 25 28/104 (26.9%) 39
Immune system disorders
Seasonal allergy 1/82 (1.2%) 1 0/80 (0%) 0 3/103 (2.9%) 3 3/104 (2.9%) 3
Infections and infestations
Upper respiratory tract infection 22/82 (26.8%) 28 28/80 (35%) 31 22/103 (21.4%) 26 24/104 (23.1%) 26
Viral infection 4/82 (4.9%) 4 0/80 (0%) 0 3/103 (2.9%) 4 9/104 (8.7%) 9
Croup infectious 3/82 (3.7%) 3 1/80 (1.3%) 1 4/103 (3.9%) 4 0/104 (0%) 0
Tonsillitis 1/82 (1.2%) 1 1/80 (1.3%) 1 1/103 (1%) 1 3/104 (2.9%) 3
Nasopharyngitis 1/82 (1.2%) 1 1/80 (1.3%) 1 3/103 (2.9%) 3 0/104 (0%) 0
Otitis media 4/82 (4.9%) 5 1/80 (1.3%) 1 3/103 (2.9%) 3 0/104 (0%) 0
Hand-foot-and-mouth disease 4/82 (4.9%) 4 3/80 (3.8%) 3 1/103 (1%) 1 0/104 (0%) 0
Gastroenteritis 2/82 (2.4%) 2 3/80 (3.8%) 3 1/103 (1%) 1 2/104 (1.9%) 2
Viral upper respiratory tract infection 1/82 (1.2%) 1 2/80 (2.5%) 2 0/103 (0%) 0 2/104 (1.9%) 2
Ear infection 2/82 (2.4%) 2 0/80 (0%) 0 1/103 (1%) 1 0/104 (0%) 0
Lower respiratory tract infection 0/82 (0%) 0 2/80 (2.5%) 2 0/103 (0%) 0 0/104 (0%) 0
Rhinitis 2/82 (2.4%) 2 0/80 (0%) 0 0/103 (0%) 0 1/104 (1%) 1
Injury, poisoning and procedural complications
Fall 3/82 (3.7%) 3 6/80 (7.5%) 6 4/103 (3.9%) 5 7/104 (6.7%) 7
Excoriation 2/82 (2.4%) 2 1/80 (1.3%) 1 3/103 (2.9%) 3 6/104 (5.8%) 8
Contusion 1/82 (1.2%) 1 1/80 (1.3%) 1 0/103 (0%) 0 6/104 (5.8%) 6
Injury 1/82 (1.2%) 1 0/80 (0%) 0 1/103 (1%) 1 4/104 (3.8%) 5
Accident 1/82 (1.2%) 1 0/80 (0%) 0 1/103 (1%) 1 3/104 (2.9%) 4
Head injury 0/82 (0%) 0 3/80 (3.8%) 5 0/103 (0%) 0 4/104 (3.8%) 5
Musculoskeletal and connective tissue disorders
Arthralgia 0/82 (0%) 0 0/80 (0%) 0 3/103 (2.9%) 3 1/104 (1%) 1
Nervous system disorders
Headache 1/82 (1.2%) 1 2/80 (2.5%) 2 4/103 (3.9%) 4 4/104 (3.8%) 4
Lethargy 1/82 (1.2%) 1 3/80 (3.8%) 3 1/103 (1%) 1 0/104 (0%) 0
Respiratory, thoracic and mediastinal disorders
Cough 6/82 (7.3%) 6 11/80 (13.8%) 12 13/103 (12.6%) 13 11/104 (10.6%) 12
Rhinorrhea 8/82 (9.8%) 8 17/80 (21.3%) 17 4/103 (3.9%) 4 8/104 (7.7%) 10
Oropharyngeal pain 2/82 (2.4%) 2 0/80 (0%) 0 4/103 (3.9%) 6 4/104 (3.8%) 4
Asthma 2/82 (2.4%) 2 4/80 (5%) 4 3/103 (2.9%) 4 3/104 (2.9%) 4
Nasal congestion 0/82 (0%) 0 3/80 (3.8%) 4 2/103 (1.9%) 4 2/104 (1.9%) 2
Skin and subcutaneous tissue disorders
Rash 7/82 (8.5%) 7 3/80 (3.8%) 3 0/103 (0%) 0 2/104 (1.9%) 2
Dermatitis diaper 7/82 (8.5%) 7 1/80 (1.3%) 1 0/103 (0%) 0 0/104 (0%) 0
Dermatitis 1/82 (1.2%) 1 2/80 (2.5%) 2 0/103 (0%) 0 2/104 (1.9%) 3
Eczema 1/82 (1.2%) 1 2/80 (2.5%) 3 0/103 (0%) 0 0/104 (0%) 0

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

CSL agreements and restrictions on publishing may vary with individual investigators; however, CSL will not prohibit any investigator from publishing. CSL supports the publication of results from all centers of a multi-center trial and generally requires that reports based on single-site data not precede the primary publication of the entire clinical trial.

Results Point of Contact

Name/Title Clinical Study Disclosure Manager
Organization Seqirus
Phone 1-855-358-8966
Email Seqirus.ClinicalTrials@Seqirus.com
Responsible Party:
Seqirus
ClinicalTrials.gov Identifier:
NCT00940108
Other Study ID Numbers:
  • CSLCT-CAL-09-60
First Posted:
Jul 15, 2009
Last Update Posted:
Jun 28, 2018
Last Verified:
Apr 1, 2018