Trial Outcomes & Findings for Safety Trial of Monovalent Whole Virus Influenza (H1N1) Vaccine (NCT NCT01507779)

NCT ID: NCT01507779

Last Updated: 2019-02-27

Results Overview

Systemic and local reactogenicity data were collected on Study Days 0, 7, 21 and 28, prevaccination, and within 60 minutes post-vaccination by clinic staff. Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Solicited systemic reactogenicity events included body temperature, feverishness, chills, cough, difficulty breathing, runny nose, nasal congestion, sore throat, hoarseness of voice, headache, confusion, convulsions/seizures, fatigue/malaise, muscle aches, joint pain, pink or red eyes, sore eyes, itchy eyes, drainage from eyes, ear pain or discharge, rash, abdominal pain, diarrhea, vomiting and jaundice. Solicited local reactogenicity included size of redness, size of swelling, size of induration, pain, and tenderness.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

48 participants

Primary outcome timeframe

7 days

Results posted on

2019-02-27

Participant Flow

Participant milestones

Participant milestones
Measure
Influenza Vaccine
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Placebo
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Overall Study
STARTED
23
25
Overall Study
COMPLETED
23
25
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Safety Trial of Monovalent Whole Virus Influenza (H1N1) Vaccine

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Influenza Vaccine
n=23 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Placebo
n=25 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Total
n=48 Participants
Total of all reporting groups
Age, Continuous
28.3 years
STANDARD_DEVIATION 6.31 • n=93 Participants
31.3 years
STANDARD_DEVIATION 5.11 • n=4 Participants
29.9 years
STANDARD_DEVIATION 5.85 • n=27 Participants
Sex: Female, Male
Female
13 Participants
n=93 Participants
18 Participants
n=4 Participants
31 Participants
n=27 Participants
Sex: Female, Male
Male
10 Participants
n=93 Participants
7 Participants
n=4 Participants
17 Participants
n=27 Participants
Race/Ethnicity, Customized
Kinh
23 Participants
n=93 Participants
25 Participants
n=4 Participants
48 Participants
n=27 Participants
Region of Enrollment
Vietnam
23 participants
n=93 Participants
25 participants
n=4 Participants
48 participants
n=27 Participants
Handedness
Left-handed
5 Participants
n=93 Participants
2 Participants
n=4 Participants
7 Participants
n=27 Participants
Handedness
Right-handed
18 Participants
n=93 Participants
23 Participants
n=4 Participants
41 Participants
n=27 Participants
Height
160.5 centimeters
STANDARD_DEVIATION 6.01 • n=93 Participants
156.9 centimeters
STANDARD_DEVIATION 5.90 • n=4 Participants
158.7 centimeters
STANDARD_DEVIATION 6.16 • n=27 Participants
Weight
55.7 kilograms
STANDARD_DEVIATION 7.76 • n=93 Participants
55.1 kilograms
STANDARD_DEVIATION 7.74 • n=4 Participants
55.4 kilograms
STANDARD_DEVIATION 7.67 • n=27 Participants

PRIMARY outcome

Timeframe: 7 days

Systemic and local reactogenicity data were collected on Study Days 0, 7, 21 and 28, prevaccination, and within 60 minutes post-vaccination by clinic staff. Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Solicited systemic reactogenicity events included body temperature, feverishness, chills, cough, difficulty breathing, runny nose, nasal congestion, sore throat, hoarseness of voice, headache, confusion, convulsions/seizures, fatigue/malaise, muscle aches, joint pain, pink or red eyes, sore eyes, itchy eyes, drainage from eyes, ear pain or discharge, rash, abdominal pain, diarrhea, vomiting and jaundice. Solicited local reactogenicity included size of redness, size of swelling, size of induration, pain, and tenderness.

Outcome measures

Outcome measures
Measure
Placebo
n=25 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=23 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Any systemic symptoms · None
16 Participants
15 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Any systemic symptoms · Mild
9 Participants
6 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Any systemic symptoms · Moderate
0 Participants
2 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Feverishness/subjective fever · None
25 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Feverishness/subjective fever · Mild
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Feverishness/subjective fever · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Chills · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Chills · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Chills · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Cough · None
24 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Cough · Mild
1 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Cough · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Difficulty breathing · None
25 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Difficulty breathing · Mild
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Difficulty breathing · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Runny nose · None
23 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Runny nose · Mild
2 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Runny nose · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Nasal congestion · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Nasal congestion · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Nasal congestion · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Sore throat · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Sore throat · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Sore throat · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Hoarseness of voice · None
24 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Hoarseness of voice · Mild
1 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Hoarseness of voice · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Headache · None
22 Participants
19 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Headache · Mild
3 Participants
2 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Headache · Moderate
0 Participants
2 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Confusion · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Confusion · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Confusion · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Seizure · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Seizure · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Seizure · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Fatigue/malaise · None
23 Participants
20 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Fatigue/malaise · Mild
2 Participants
3 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Fatigue/malaise · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Muscle aches (generalized) · None
24 Participants
21 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Muscle aches (generalized) · Mild
1 Participants
2 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Muscle aches (generalized) · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Joint pain · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Joint pain · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Joint pain · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Pink or red eyes · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Pink or red eyes · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Pink or red eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Sore eyes · None
25 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Sore eyes · Mild
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Sore eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Itchy eyes · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Itchy eyes · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Itchy eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Drainage from eyes · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Drainage from eyes · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Drainage from eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Ear pain or discharge · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Ear pain or discharge · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Ear pain or discharge · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Rash · None
24 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Rash · Mild
1 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Rash · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Abdominal pain · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Abdominal pain · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Abdominal pain · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Diarrhea · None
24 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Diarrhea · Mild
1 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Diarrhea · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Vomiting · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Vomiting · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Vomiting · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Jaundice · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Jaundice · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 1
Jaundice · Moderate
0 Participants
0 Participants

PRIMARY outcome

Timeframe: 7 days

Systemic and local reactogenicity data were collected on Study Days 0, 7, 21 and 28, prevaccination, and within 60 minutes post-vaccination by clinic staff. Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Solicited systemic reactogenicity events included body temperature, feverishness, chills, cough, difficulty breathing, runny nose, nasal congestion, sore throat, hoarseness of voice, headache, confusion, convulsions/seizures, fatigue/malaise, muscle aches, joint pain, pink or red eyes, sore eyes, itchy eyes, drainage from eyes, ear pain or discharge, rash, abdominal pain, diarrhea, vomiting and jaundice. Solicited local reactogenicity included size of redness, size of swelling, size of induration, pain, and tenderness.

Outcome measures

Outcome measures
Measure
Placebo
n=25 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=23 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Pink or red eyes · None
25 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Pink or red eyes · Mild
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Pink or red eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Sore eyes · None
24 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Sore eyes · Mild
1 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Any systemic symptoms · None
13 Participants
19 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Any systemic symptoms · Mild
10 Participants
3 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Any systemic symptoms · Moderate
2 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Feverishness/subjective fever · None
25 Participants
21 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Feverishness/subjective fever · Mild
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Feverishness/subjective fever · Moderate
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Chills · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Chills · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Chills · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Cough · None
24 Participants
20 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Cough · Mild
1 Participants
3 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Cough · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Difficulty breathing · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Difficulty breathing · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Difficulty breathing · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Sore eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Runny nose · None
20 Participants
21 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Runny nose · Mild
5 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Runny nose · Moderate
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Nasal congestion · None
23 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Nasal congestion · Mild
1 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Nasal congestion · Moderate
1 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Sore throat · None
23 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Sore throat · Mild
1 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Sore throat · Moderate
1 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Hoarseness of voice · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Hoarseness of voice · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Hoarseness of voice · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Headache · None
20 Participants
21 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Headache · Mild
3 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Headache · Moderate
2 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Confusion · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Confusion · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Confusion · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Seizure · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Seizure · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Seizure · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Fatigue/malaise · None
23 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Fatigue/malaise · Mild
2 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Fatigue/malaise · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Muscle aches (generalized) · None
24 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Muscle aches (generalized) · Mild
1 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Muscle aches (generalized) · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Itchy eyes · None
25 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Joint pain · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Joint pain · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Joint pain · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Itchy eyes · Mild
0 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Itchy eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Drainage from eyes · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Drainage from eyes · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Drainage from eyes · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Ear pain or discharge · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Ear pain or discharge · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Ear pain or discharge · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Rash · None
22 Participants
22 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Rash · Mild
3 Participants
1 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Rash · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Abdominal pain · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Abdominal pain · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Abdominal pain · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Diarrhea · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Diarrhea · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Diarrhea · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Vomiting · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Vomiting · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Vomiting · Moderate
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Jaundice · None
25 Participants
23 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Jaundice · Mild
0 Participants
0 Participants
Number of Participants With Maximum Systemic Reaction After Vaccination 2
Jaundice · Moderate
0 Participants
0 Participants

PRIMARY outcome

Timeframe: 7 days

Systemic and local reactogenicity data were collected on Study Days 0, 7, 21 and 28, prevaccination, and within 60 minutes post-vaccination by clinic staff. Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Solicited local reactogenicity included size of redness, size of swelling, size of induration, pain, and tenderness.

Outcome measures

Outcome measures
Measure
Placebo
n=25 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=23 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number of Participants With Maximum Local Reaction After Vaccination 1
Painful feeling after injection · Mild
0 Participants
3 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Pain when touching to the injection · None
20 Participants
21 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Pain when touching to the injection · Mild
5 Participants
2 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Any local symptoms · None
20 Participants
19 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Any local symptoms · Mild
5 Participants
4 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Swollen after injection · None
24 Participants
23 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Swollen after injection · Mild
1 Participants
0 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Red after injection · None
24 Participants
23 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Red after injection · Mild
1 Participants
0 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Hardness after injection · None
24 Participants
23 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Hardness after injection · Mild
1 Participants
0 Participants
Number of Participants With Maximum Local Reaction After Vaccination 1
Painful feeling after injection · None
25 Participants
20 Participants

PRIMARY outcome

Timeframe: 7 days

Systemic and local reactogenicity data were collected on Study Days 0, 7, 21 and 28, prevaccination, and within 60 minutes post-vaccination by clinic staff. Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Solicited local reactogenicity included size of redness, size of swelling, size of induration, pain, and tenderness.

Outcome measures

Outcome measures
Measure
Placebo
n=25 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=23 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number of Participants With Maximum Local Reaction After Vaccination 2
Any local symptoms · None
21 Participants
21 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Any local symptoms · Mild
4 Participants
2 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Swollen after injection · None
25 Participants
23 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Swollen after injection · Mild
0 Participants
0 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Red after injection · None
24 Participants
22 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Red after injection · Mild
1 Participants
1 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Hardness after injection · None
25 Participants
23 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Hardness after injection · Mild
0 Participants
0 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Painful feeling after injection · None
25 Participants
22 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Pain when touching to the injection · Mild
3 Participants
0 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Painful feeling after injection · Mild
0 Participants
1 Participants
Number of Participants With Maximum Local Reaction After Vaccination 2
Pain when touching to the injection · None
22 Participants
23 Participants

PRIMARY outcome

Timeframe: 7 days after each dose (Day 7 and Day 28)

Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Adverse events were collected throughout the study period, and were graded for severity; however unsolicited adverse events were assessed only for relationship to vaccine if the events were immediate reactions or considered to be serious adverse events.

Outcome measures

Outcome measures
Measure
Placebo
n=23 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=25 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Unsolicited, Non-serious Adverse Events
Mild
5 adverse events
14 adverse events
Unsolicited, Non-serious Adverse Events
Moderate
12 adverse events
11 adverse events

SECONDARY outcome

Timeframe: Day 0, Day 21 and Day 42

Day 0, 21 and 42 blood samples from study subjects (n=48) were tested. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The hemagglutination titer was reported as the reciprocal of the highest dilution that caused hemagglutination and was expressed in HA units (HAU)/50μL, calculated as the average of results of duplicate wells.

Outcome measures

Outcome measures
Measure
Placebo
n=23 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=25 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Geometric Mean Titer of Hemagglutination-inhibition Antibodies (HAI)
Day 0
13.5 titer
Interval 8.5 to 21.6
11.5 titer
Interval 7.7 to 17.2
Geometric Mean Titer of Hemagglutination-inhibition Antibodies (HAI)
Day 21
306.6 titer
Interval 165.1 to 569.6
11.2 titer
Interval 7.7 to 16.3
Geometric Mean Titer of Hemagglutination-inhibition Antibodies (HAI)
Day 42
283.7 titer
Interval 161.7 to 497.5
11.8 titer
Interval 8.1 to 17.3

SECONDARY outcome

Timeframe: Day 0, Day 21 and Day 42

Day 0, 21 and 42 blood samples from study subjects (n=48) were tested. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The hemagglutination titer was reported as the reciprocal of the highest dilution that caused hemagglutination and was expressed in HA units (HAU)/50μL, calculated as the average of results of duplicate wells.

Outcome measures

Outcome measures
Measure
Placebo
n=23 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=25 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Ratio of Geometric Mean Titer of Hemagglutination-inhibition Antibodies (HAI)
Day 21/Day 0
22.69 ratio
Interval 11.0 to 46.64
0.97 ratio
Interval 0.9 to 1.08
Ratio of Geometric Mean Titer of Hemagglutination-inhibition Antibodies (HAI)
Day 42/Day 0
20.99 ratio
Interval 10.6 to 41.45
1.03 ratio
Interval 0.8 to 1.17
Ratio of Geometric Mean Titer of Hemagglutination-inhibition Antibodies (HAI)
Day 42/Day 21
0.93 ratio
Interval 0.7 to 1.18
1.06 ratio
Interval 1.0 to 1.14

SECONDARY outcome

Timeframe: Day 21 and Day 42

Day 21 and 42 blood samples from study subjects (n=48) were tested. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The hemagglutination titer was reported as the reciprocal of the highest dilution that caused hemagglutination and was expressed in HA units (HAU)/50μL, calculated as the average of results of duplicate wells.

Outcome measures

Outcome measures
Measure
Placebo
n=23 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=25 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of All Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI)
Day 21 · 4-fold rise or higher
20 Participants
0 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI)
Day 21 · Less than 4-fold rise
3 Participants
25 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI)
Day 42 · 4-fold rise or higher
21 Participants
0 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI)
Day 42 · Less than 4-fold rise
2 Participants
25 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI)
Day 21 or 42 · 4-fold rise or higher
22 Participants
0 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI)
Day 21 or 42 · Less than 4-fold rise
1 Participants
25 Participants

SECONDARY outcome

Timeframe: Day 21 and Day 42

Population: Subjects with baseline titer \<40

Day 21 and Day 42 blood samples from study subjects (n=48) were tested. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The hemagglutination titer was reported as the reciprocal of the highest dilution that caused hemagglutination and was expressed in HA units (HAU)/50μL, calculated as the average of results of duplicate wells.

Outcome measures

Outcome measures
Measure
Placebo
n=17 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=18 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Less Than 40
Day 21 · 4-fold rise or higher
15 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Less Than 40
Day 21 · Less than 4-fold rise
2 Participants
18 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Less Than 40
Day 42 · 4-fold rise or higher
17 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Less Than 40
Day 42 · Less than 4-fold rise
0 Participants
18 Participants

SECONDARY outcome

Timeframe: Day 21 and Day 42

Population: Subjects with baseline titer \>=40

Day 21 and 42 blood samples from study subjects (n=48) were tested. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The hemagglutination titer was reported as the reciprocal of the highest dilution that caused hemagglutination and was expressed in HA units (HAU)/50μL, calculated as the average of results of duplicate wells.

Outcome measures

Outcome measures
Measure
Placebo
n=6 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=7 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Greater Than 40
Day 21 · 4-fold rise or higher
5 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Greater Than 40
Day 21 · Less than 4-fold rise
1 Participants
7 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Greater Than 40
Day 42 · 4-fold rise or higher
4 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Hemagglutination-inhibition Antibodies (HAI) Among Subjects With Baseline Titer Greater Than 40
Day 42 · Less than 4-fold rise
2 Participants
7 Participants

SECONDARY outcome

Timeframe: Day 21 and Day 42

Population: Includes subjects who had a baseline titer of \<1:40.

Seroprotection defined as an HAI titer ≥1:40. Day 21 and 42 blood samples from study subjects (n=48) were tested. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The hemagglutination titer was reported as the reciprocal of the highest dilution that caused hemagglutination and was expressed in HA units (HAU)/50μL, calculated as the average of results of duplicate wells.

Outcome measures

Outcome measures
Measure
Placebo
n=17 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=18 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of Subjects Developing a Seroprotective Hemagglutination-inhibition (HAI) Antibody Titer
Day 21 · Response
15 Participants
0 Participants
Number and Percentage of Subjects Developing a Seroprotective Hemagglutination-inhibition (HAI) Antibody Titer
Day 21 · No response
2 Participants
18 Participants
Number and Percentage of Subjects Developing a Seroprotective Hemagglutination-inhibition (HAI) Antibody Titer
Day 42 · Response
17 Participants
1 Participants
Number and Percentage of Subjects Developing a Seroprotective Hemagglutination-inhibition (HAI) Antibody Titer
Day 42 · No response
0 Participants
17 Participants

SECONDARY outcome

Timeframe: Day 0, Day 21 and Day 42

Day 0, 21 and 42 specimens were tested in the microneutralization (MN) assay. The microneutralization assay determines the titer of neutralizing antibodies against influenza A/H1N1. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The 50% neutralizing antibody titer is the reciprocal of the corresponding serum dilution. The geometric mean titers (GMT) and corresponding confidence intervals were based on a log 10 scale.

Outcome measures

Outcome measures
Measure
Placebo
n=23 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=25 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Geometric Mean Titer of Microneutralizing (MN) Antibodies
Day 0
21.2 titer
Interval 11.8 to 38.4
17.7 titer
Interval 9.8 to 31.9
Geometric Mean Titer of Microneutralizing (MN) Antibodies
Day 21
595.1 titer
Interval 287.8 to 1230.5
18.9 titer
Interval 10.6 to 33.9
Geometric Mean Titer of Microneutralizing (MN) Antibodies
Day 42
725.7 titer
Interval 411.3 to 1280.3
18.9 titer
Interval 10.3 to 34.9

SECONDARY outcome

Timeframe: Day 0, Day 21 and Day 42

Day 0, 21 and 42 specimens were tested in the microneutralization (MN) assay. The microneutralization assay determines the titer of neutralizing antibodies against influenza A/H1N1. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The 50% neutralizing antibody titer is the reciprocal of the corresponding serum dilution. The geometric mean titers (GMT) and corresponding confidence intervals were based on a log 10 scale.

Outcome measures

Outcome measures
Measure
Placebo
n=23 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=25 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Ratio of Geometric Mean Titer of Microneutralization (MN) Antibodies
Day 21/Day 0
28.01 ratio
Interval 12.0 to 65.24
1.07 ratio
Interval 1.0 to 1.2
Ratio of Geometric Mean Titer of Microneutralization (MN) Antibodies
Day 42/Day 0
34.16 ratio
Interval 16.8 to 69.4
1.07 ratio
Interval 1.0 to 1.16
Ratio of Geometric Mean Titer of Microneutralization (MN) Antibodies
Day 42/Day 21
1.22 ratio
Interval 0.9 to 1.61
1.00 ratio
Interval 0.9 to 1.12

SECONDARY outcome

Timeframe: Day 21 and Day 42

Day 21 and 42 specimens were tested in the microneutralization (MN) assay. The microneutralization assay determines the titer of neutralizing antibodies against influenza A/H1N1. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The 50% neutralizing antibody titer is the reciprocal of the corresponding serum dilution. The geometric mean titers (GMT) and corresponding confidence intervals were based on a log 10 scale.

Outcome measures

Outcome measures
Measure
Placebo
n=23 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=25 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of All Subjects Achieving a Four-fold Rise in Microneutralization (MN) Antibodies
Day 21 · 4-fold rise or higher
19 Participants
0 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Microneutralization (MN) Antibodies
Day 21 · Less than 4-fold rise
4 Participants
25 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Microneutralization (MN) Antibodies
Day 42 · 4-fold rise or higher
22 Participants
0 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Microneutralization (MN) Antibodies
Day 42 · Less than 4-fold rise
1 Participants
25 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Microneutralization (MN) Antibodies
Day 21 or 42 · 4-fold rise or higher
22 Participants
0 Participants
Number and Percentage of All Subjects Achieving a Four-fold Rise in Microneutralization (MN) Antibodies
Day 21 or 42 · Less than 4-fold rise
1 Participants
25 Participants

SECONDARY outcome

Timeframe: Day 21 and Day 42

Population: Subjects with baseline titer \<40

Day 21 and 42 blood samples from study subjects (n=48) were tested. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The hemagglutination titer was reported as the reciprocal of the highest dilution that caused hemagglutination and was expressed in HA units (HAU)/50μL, calculated as the average of results of duplicate wells.

Outcome measures

Outcome measures
Measure
Placebo
n=11 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=15 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Less Than 40
Day 21 · 4-fold rise or higher
10 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Less Than 40
Day 21 · Less than 4-fold rise
1 Participants
15 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Less Than 40
Day 42 · 4-fold rise or higher
11 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Less Than 40
Day 42 · Less than 4-fold rise
0 Participants
15 Participants

SECONDARY outcome

Timeframe: Day 21 and Day 42

Population: Subjects with baseline titer \>=40

Day 21 and 42 specimens were tested in the microneutralization (MN) assay. The microneutralization assay determines the titer of neutralizing antibodies against influenza A/H1N1. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The 50% neutralizing antibody titer is the reciprocal of the corresponding serum dilution. The geometric mean titers (GMT) and corresponding confidence intervals were based on a log 10 scale.

Outcome measures

Outcome measures
Measure
Placebo
n=12 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=10 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Greater Than 40
Day 21 · 4-fold rise or higher
9 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Greater Than 40
Day 21 · Less than 4-fold rise
3 Participants
10 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Greater Than 40
Day 42 · 4-fold rise or higher
11 Participants
0 Participants
Number and Percentage of Subjects Achieving a Four-fold Rise in Microneutralizing (MN) Antibodies Among Subjects With Baseline Titer Greater Than 40
Day 42 · Less than 4-fold rise
1 Participants
10 Participants

SECONDARY outcome

Timeframe: Day 21 and Day 42

Population: Includes subjects who had a baseline titer of \<1:40.

Seroprotection defined as an antibody titer of 1:40 or greater. Day 21 and 42 specimens were tested in the microneutralization (MN) assay. The microneutralization assay determines the titer of neutralizing antibodies against influenza A/H1N1. The assay is performed in duplicate wells of 2-fold serial dilutions of serum. The 50% neutralizing antibody titer is the reciprocal of the corresponding serum dilution. The geometric mean titers (GMT) and corresponding confidence intervals were based on a log 10 scale.

Outcome measures

Outcome measures
Measure
Placebo
n=11 Participants
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Influenza Vaccine
n=15 Participants
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Number and Percentage of Subjects Developing a Seroprotective Microneutralizing (MN) Antibody Titer
Day 21 · Seroprotection
9 Participants
0 Participants
Number and Percentage of Subjects Developing a Seroprotective Microneutralizing (MN) Antibody Titer
Day 21 · No seroprotection
2 Participants
15 Participants
Number and Percentage of Subjects Developing a Seroprotective Microneutralizing (MN) Antibody Titer
Day 42 · Seroprotection
11 Participants
0 Participants
Number and Percentage of Subjects Developing a Seroprotective Microneutralizing (MN) Antibody Titer
Day 42 · No seroprotection
0 Participants
15 Participants

Adverse Events

Influenza Vaccine

Serious events: 0 serious events
Other events: 11 other events
Deaths: 0 deaths

Placebo

Serious events: 1 serious events
Other events: 15 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Influenza Vaccine
n=23 participants at risk
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Placebo
n=25 participants at risk
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Squamous cell carcinoma
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.

Other adverse events

Other adverse events
Measure
Influenza Vaccine
n=23 participants at risk
Received 0.50 mL of inactivated monovalent influenza vaccine (IVACFLU), administered intramuscularly, on days 0 and 21 IVACFLU: IVACFLU is a whole virus vaccine, collected in a linear sucrose density gradient solution using a continuous flow centrifuge Alfpa Wassmann and inactivated with formaldehyde. It was formulated to contain 15 mcg hemagglutinin (HA) of influenza A/California/07/2009(H1N1)-like virus per 0.5 mL dose and filled in single dose vials.
Placebo
n=25 participants at risk
Received placebo, administered intramuscularly, on days 0 and 21 Placebo: Phosphate buffered saline (PBS), pH 7.2, in 0.5 ml single-dose vials.
Gastrointestinal disorders
Abdominal pain upper
8.7%
2/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
0.00%
0/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Skin and subcutaneous tissue disorders
Acne
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Skin and subcutaneous tissue disorders
Dermatitis allergic
4.3%
1/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
0.00%
0/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Skin and subcutaneous tissue disorders
Erythema
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
General disorders
Fatigue
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
8.0%
2/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Gastrointestinal disorders
Gastritis
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
8.0%
2/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Skin and subcutaneous tissue disorders
Generalized erythema
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Nervous system disorders
Headache
17.4%
4/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
12.0%
3/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Nervous system disorders
Myelopathy
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Respiratory, thoracic and mediastinal disorders
Nasopharyngitis
4.3%
1/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
8.0%
2/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Nervous system disorders
Neuropathy peripheral
4.3%
1/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
0.00%
0/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Eye disorders
Ocular hyperaemia
4.3%
1/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
0.00%
0/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
8.7%
2/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Ear and labyrinth disorders
Otorrhoea
4.3%
1/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
0.00%
0/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Skin and subcutaneous tissue disorders
Piloerection
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
General disorders
Pyrexia
4.3%
1/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
16.0%
4/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Skin and subcutaneous tissue disorders
Rash
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Immune system disorders
Rhinitis allergic
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Musculoskeletal and connective tissue disorders
Sciatica
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
Respiratory, thoracic and mediastinal disorders
Sinusitis
0.00%
0/23 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.
4.0%
1/25 • 7 days after each vaccination for non-serious adverse events; 201 days for serious adverse events.
Subjects completed diary cards for 7 days after each vaccination and received visits from the investigator's clinical team at Days 1 and 5 following each vaccination. Additionally, the participant recorded any serious adverse events over the entire study on clinic visits on day 42 and 201.

Additional Information

Jorge Flores

PATH

Phone: (202) 822-0033

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place