Trial Outcomes & Findings for Influenza A/H5N1 Vaccine Clinical Trial (IVACFLU-A/H5N1) - Phase 1 (NCT NCT02171819)

NCT ID: NCT02171819

Last Updated: 2019-03-14

Results Overview

Data presented are after 1st and 2nd vaccination combined. All participants were observed for immediate reactions for 60 minutes after administration of study product, with appropriate medical treatment readily available in case of an anaphylactic reaction following the administration of study product.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

75 participants

Primary outcome timeframe

60 min post injection

Results posted on

2019-03-14

Participant Flow

Participant milestones

Participant milestones
Measure
IVACFLU-A/H5N1, 7.5 mcg
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Placebo
phosphate buffered saline, given IM at Day 0 and Day 21.
Overall Study
STARTED
31
32
12
Overall Study
COMPLETED
31
32
12
Overall Study
NOT COMPLETED
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Influenza A/H5N1 Vaccine Clinical Trial (IVACFLU-A/H5N1) - Phase 1

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Placebo
n=12 Participants
phosphate buffered saline, given IM at Day 0 and Day 21.
Total
n=75 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Categorical
Between 18 and 65 years
31 Participants
n=5 Participants
32 Participants
n=7 Participants
12 Participants
n=5 Participants
75 Participants
n=4 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Continuous
23.7 years
n=5 Participants
23.5 years
n=7 Participants
23.7 years
n=5 Participants
23.6 years
n=4 Participants
Sex: Female, Male
Female
11 Participants
n=5 Participants
13 Participants
n=7 Participants
7 Participants
n=5 Participants
31 Participants
n=4 Participants
Sex: Female, Male
Male
20 Participants
n=5 Participants
19 Participants
n=7 Participants
5 Participants
n=5 Participants
44 Participants
n=4 Participants
Race/Ethnicity, Customized
Kinh
31 participants
n=5 Participants
32 participants
n=7 Participants
12 participants
n=5 Participants
75 participants
n=4 Participants
Race/Ethnicity, Customized
Khmer
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
0 participants
n=4 Participants
Race/Ethnicity, Customized
Hoa
0 participants
n=5 Participants
0 participants
n=7 Participants
0 participants
n=5 Participants
0 participants
n=4 Participants
Race/Ethnicity, Customized
Other
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race/Ethnicity, Customized
Asian
31 Participants
n=5 Participants
32 Participants
n=7 Participants
12 Participants
n=5 Participants
75 Participants
n=4 Participants
Region of Enrollment
Vietnam
31 participants
n=5 Participants
32 participants
n=7 Participants
12 participants
n=5 Participants
75 participants
n=4 Participants

PRIMARY outcome

Timeframe: 60 min post injection

Population: Intent to treat population.

Data presented are after 1st and 2nd vaccination combined. All participants were observed for immediate reactions for 60 minutes after administration of study product, with appropriate medical treatment readily available in case of an anaphylactic reaction following the administration of study product.

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=63 Participants
Results of low and high doses combined
Placebo
n=12 Participants
phosphate buffered saline, given IM at Day 0 and Day 21
Immediate Reactions Occurring Within 60 Minutes of Administration of Any Dose
0 Participants
0 Participants
0 Participants
0 Participants

PRIMARY outcome

Timeframe: Within 7 days after injection

Population: Participants who were randomized and received study injections

Data presented are after 1st and 2nd vaccination combined. Solicted reactogenicity are local and systemic events that are expected after injection and specifically asked of the participant. Only reported reactogenicity is presented. If not shown, then no participant reported that reaction in any study group. Local reactions are redness, swelling, pain, tenderness, and hardness. Systemic reactions are actual and subjective fever, chills, cough, difficulty breathing, runny nose, nasal congestion, sore throat, hoarseness of voice, headache, confusion. convulsions/seizures, fatigue/malaise, muscle aches (generalized), joint pain, pink or red eyes, sore eyes, itchy eyes, drainage from eyes. ear pain or discharge, rash, abdominal pain, diarrhea, vomiting, and jaundice.

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=63 Participants
Results of low and high doses combined
Placebo
n=12 Participants
phosphate buffered saline, given IM at Day 0 and Day 21
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Subjects with at least one solicted AE
26 Participants
26 Participants
52 Participants
4 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Subjects with at least one local solicted AE
25 Participants
24 Participants
49 Participants
3 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Subjects with at least one systemic solicited AE
13 Participants
14 Participants
27 Participants
4 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Local reactions--Pain
18 Participants
16 Participants
34 Participants
1 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Local reactions--Tenderness
21 Participants
23 Participants
44 Participants
3 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Diarrhea
0 Participants
1 Participants
1 Participants
0 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Abdominal pain
1 Participants
0 Participants
1 Participants
0 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Chills
1 Participants
3 Participants
4 Participants
0 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Cough
3 Participants
2 Participants
5 Participants
2 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Ear pain/discharge
0 Participants
1 Participants
1 Participants
0 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Fatigue/Malaise
3 Participants
5 Participants
8 Participants
2 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Fever
0 Participants
3 Participants
3 Participants
0 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Sore eyes
1 Participants
0 Participants
1 Participants
0 Participants
Number of Participants With at Least One Solicted Reactogenicity After Both Injections
Systemic reactogenicity--Sore throat
2 Participants
2 Participants
4 Participants
2 Participants

PRIMARY outcome

Timeframe: Within 7 weeks of injection

Population: Intent to treat population. Please see more detail in the AE section of this posting. Table 14.2.1.2.1 Summary of Unsolicited Adverse Events by System Organ Class and Preferred Term (After 1st and 2nd Vaccination Combined) Intention-to-Treat Population

Summary of number of participants with at least one unsolicited AE after 1st and 2nd vaccination combined. Please see the adverse event section of this report for full details.

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=12 Participants
Results of low and high doses combined
Placebo
phosphate buffered saline, given IM at Day 0 and Day 21
Number of Participants With at Least One Unsolicited AE
12 Participants
12 Participants
4 Participants

PRIMARY outcome

Timeframe: Within 3 weeks of any injection

Population: Table 14.2.2.3.1 Summary of Serious Unsolicited Adverse Events by System Organ Class and Preferred Term (After 1st and 2nd Vaccination Combined) Intention-to-Treat Population

Summary data. Data presented are after 1st and 2nd injections combined. Please see AE reporting section of this report for full details.

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=12 Participants
Results of low and high doses combined
Placebo
phosphate buffered saline, given IM at Day 0 and Day 21
All Serious Adverse Events (SAEs) Occurring Within 3 Weeks of Receipt of Any Dose
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Day 0 to Day 49

Population: Per-protocol analysis set--The Per-Protocol Analysis Set (PPAS) contained all study subjects who received 2 doses of vaccine or placebo and completed the Day 42 visit without major protocol violations that were determined to potentially interfere with immune response to the study vaccine.

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=63 Participants
Results of low and high doses combined
Placebo
n=12 Participants
phosphate buffered saline, given IM at Day 0 and Day 21
The Proportion of Subjects Achieving a Hemagglutination Inhibition (HAI) Titer ≥ 1:40 Pre-vaccination (Day 0) to Post 2nd Vaccination (Day 49)
Post vaccination #1
7 Participants
9 Participants
16 Participants
0 Participants
The Proportion of Subjects Achieving a Hemagglutination Inhibition (HAI) Titer ≥ 1:40 Pre-vaccination (Day 0) to Post 2nd Vaccination (Day 49)
Post vaccination #2
13 Participants
18 Participants
31 Participants
0 Participants

SECONDARY outcome

Timeframe: Days 21 and 42

Population: Per-protocol analysis set--The Per-Protocol Analysis Set (PPAS) contained all study subjects who received 2 doses of vaccine or placebo and completed the Day 42 visit without major protocol violations that were determined to potentially interfere with immune response to the study vaccine.

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=63 Participants
Results of low and high doses combined
Placebo
n=12 Participants
phosphate buffered saline, given IM at Day 0 and Day 21
The Proportion of Subjects Achieving a Four-fold Rise in HAI Between Doses or From Baseline to Post-Injection 2
Baseline to post 1st vaccination
11 Participants
12 Participants
23 Participants
0 Participants
The Proportion of Subjects Achieving a Four-fold Rise in HAI Between Doses or From Baseline to Post-Injection 2
From post 1st- to post 2nd vaccination
9 Participants
11 Participants
20 Participants
0 Participants
The Proportion of Subjects Achieving a Four-fold Rise in HAI Between Doses or From Baseline to Post-Injection 2
Baseline to 2nd vaccination
21 Participants
23 Participants
44 Participants
0 Participants

SECONDARY outcome

Timeframe: Days 0, 21 and 42

Population: Per-protocol analysis set--The Per-Protocol Analysis Set (PPAS) contained all study subjects who received 2 doses of vaccine or placebo and completed the Day 42 visit without major protocol violations that were determined to potentially interfere with immune response to the study vaccine.

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=63 Participants
Results of low and high doses combined
Placebo
n=12 Participants
phosphate buffered saline, given IM at Day 0 and Day 21
Geometric Mean Titer (GMT) of Hemagglutination Inhibition After Each Dose
Day 0
5.00 Titers
Interval 5.0 to 5.0
5.00 Titers
Interval 5.0 to 5.0
5.00 Titers
Interval 5.0 to 5.0
5.00 Titers
Interval 5.0 to 5.0
Geometric Mean Titer (GMT) of Hemagglutination Inhibition After Each Dose
Post vaccination #1
12.8 Titers
Interval 7.95 to 20.58
11.9 Titers
Interval 8.17 to 17.31
12.3 Titers
Interval 9.19 to 16.53
5.00 Titers
Interval 5.0 to 5.0
Geometric Mean Titer (GMT) of Hemagglutination Inhibition After Each Dose
Post vaccination #2
24.5 Titers
Interval 15.51 to 38.58
27.1 Titers
Interval 19.98 to 36.71
25.8 Titers
Interval 19.77 to 33.57
5.00 Titers
Interval 5.0 to 5.0

SECONDARY outcome

Timeframe: Days 0, 21, and 42

Outcome measures

Outcome measures
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 Participants
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 Participants
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Combined Vaccine
n=63 Participants
Results of low and high doses combined
Placebo
n=12 Participants
phosphate buffered saline, given IM at Day 0 and Day 21
Geometric Mean Titer (GMT) of Neutralizing Antibody After Each Dose
Post vaccination #2
21.9 Titers
Interval 13.91 to 34.38
23.3 Titers
Interval 16.54 to 32.76
22.6 Titers
Interval 17.16 to 29.7
5.00 Titers
Interval 5.0 to 5.0
Geometric Mean Titer (GMT) of Neutralizing Antibody After Each Dose
Day 0
5.00 Titers
Interval 5.0 to 5.0
5.00 Titers
Interval 5.0 to 5.0
5.00 Titers
Interval 5.0 to 5.0
5.00 Titers
Interval 5.0 to 5.0
Geometric Mean Titer (GMT) of Neutralizing Antibody After Each Dose
Post vaccination #1
9.4 Titers
Interval 5.99 to 14.6
9.4 Titers
Interval 6.52 to 13.46
9.4 Titers
Interval 7.09 to 12.36
5.00 Titers
Interval 5.0 to 5.0

Adverse Events

IVACFLU-A/H5N1, 7.5 mcg

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

IVACFLU-A/H5N1, 15 mcg

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
IVACFLU-A/H5N1, 7.5 mcg
n=31 participants at risk
IVACFLU-A/H5N1, 7.5 mcg HA per dose, given by intramuscular (IM) injection at Day 0 and Day 21.
IVACFLU-A/H5N1, 15 mcg
n=32 participants at risk
IVACFLU-A/H5N1, 15 mcg HA per dose, given IM at Day 0 and Day 21.
Placebo
n=12 participants at risk
phosphate buffered saline, given IM at Day 0 and Day 21.
Immune system disorders
Immune system disorders
0.00%
0/31 • 90 days
0.00%
0/32 • 90 days
8.3%
1/12 • Number of events 1 • 90 days
Infections and infestations
Infections
0.00%
0/31 • 90 days
0.00%
0/32 • 90 days
8.3%
1/12 • Number of events 1 • 90 days
Skin and subcutaneous tissue disorders
Pruritis
0.00%
0/31 • 90 days
0.00%
0/32 • 90 days
8.3%
1/12 • Number of events 1 • 90 days
Investigations
Blood bilirubin increased
9.7%
3/31 • Number of events 3 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
Nervous system disorders
Headache
9.7%
3/31 • Number of events 3 • 90 days
6.2%
2/32 • Number of events 2 • 90 days
16.7%
2/12 • Number of events 2 • 90 days
Respiratory, thoracic and mediastinal disorders
Cough
16.1%
5/31 • Number of events 5 • 90 days
6.2%
2/32 • Number of events 2 • 90 days
16.7%
2/12 • Number of events 2 • 90 days
Respiratory, thoracic and mediastinal disorders
Dysphonia
6.5%
2/31 • Number of events 2 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
Respiratory, thoracic and mediastinal disorders
Oropharanyngeal pain
9.7%
3/31 • Number of events 3 • 90 days
6.2%
2/32 • Number of events 2 • 90 days
16.7%
2/12 • Number of events 2 • 90 days
Respiratory, thoracic and mediastinal disorders
Rhinorrhea
16.1%
5/31 • Number of events 5 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
8.3%
1/12 • Number of events 1 • 90 days
Skin and subcutaneous tissue disorders
Pyrexia
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
8.3%
1/12 • Number of events 1 • 90 days
Ear and labyrinth disorders
Otorrhea
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
Gastrointestinal disorders
Apthous stomatitis
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
Gastrointestinal disorders
Nausea
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
General disorders
Chills
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
General disorders
Feeling hot
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
General disorders
Malaise
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
Injury, poisoning and procedural complications
Clavicle fracture
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
Injury, poisoning and procedural complications
Soft tissue injury
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
Investigations
Alanine aminotransferase increased
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
Investigations
Heart rate increased
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
Nervous system disorders
Dizziness
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
Nervous system disorders
Dizziness postural
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
Psychiatric disorders
Anxiety
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
Psychiatric disorders
Depressed mood
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
Reproductive system and breast disorders
Dysmenorrhoea
0.00%
0/31 • 90 days
3.1%
1/32 • Number of events 1 • 90 days
0.00%
0/12 • 90 days
Skin and subcutaneous tissue disorders
Skin discolouration
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
0.00%
0/12 • 90 days
General disorders
Pyrexia
3.2%
1/31 • Number of events 1 • 90 days
0.00%
0/32 • 90 days
8.3%
1/12 • Number of events 1 • 90 days

Additional Information

Dr. Le Van Be

IVAC

Results disclosure agreements

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