Trial Outcomes & Findings for Randomized, Open-label Phase II Trial to Assess the Safety and Immunogenicity of MVA-BN Smallpox Vaccine in Immunocompromised Subjects With HIV Infection (NCT NCT02038881)

NCT ID: NCT02038881

Last Updated: 2020-04-02

Results Overview

Occurrence, relationship and intensity of any serious AE (SAE)

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

87 participants

Primary outcome timeframe

within 75 weeks

Results posted on

2020-04-02

Participant Flow

Subjects were screened and enrolled at 12 sites in the US

Participant milestones

Participant milestones
Measure
Group 1 (Standard Regimen)
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Overall Study
STARTED
27
29
31
Overall Study
COMPLETED
24
29
30
Overall Study
NOT COMPLETED
3
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Group 1 (Standard Regimen)
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Overall Study
Withdrawal by Subject
0
0
1
Overall Study
Lost to Follow-up
2
0
0
Overall Study
incarcerated
1
0
0

Baseline Characteristics

Randomized, Open-label Phase II Trial to Assess the Safety and Immunogenicity of MVA-BN Smallpox Vaccine in Immunocompromised Subjects With HIV Infection

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Total
n=87 Participants
Total of all reporting groups
Age, Continuous
35.1 years
STANDARD_DEVIATION 7.66 • n=5 Participants
33.1 years
STANDARD_DEVIATION 6.67 • n=7 Participants
36.6 years
STANDARD_DEVIATION 5.43 • n=5 Participants
35 years
STANDARD_DEVIATION 6.68 • n=4 Participants
Sex: Female, Male
Female
4 Participants
n=5 Participants
5 Participants
n=7 Participants
3 Participants
n=5 Participants
12 Participants
n=4 Participants
Sex: Female, Male
Male
23 Participants
n=5 Participants
24 Participants
n=7 Participants
28 Participants
n=5 Participants
75 Participants
n=4 Participants
Race/Ethnicity, Customized
American Indian or Alaskan Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race/Ethnicity, Customized
Oriental/Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race/Ethnicity, Customized
Black/African American
16 Participants
n=5 Participants
18 Participants
n=7 Participants
16 Participants
n=5 Participants
50 Participants
n=4 Participants
Race/Ethnicity, Customized
Native Hawaiian/Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
1 Participants
n=4 Participants
Race/Ethnicity, Customized
White/Caucasian
10 Participants
n=5 Participants
10 Participants
n=7 Participants
14 Participants
n=5 Participants
34 Participants
n=4 Participants
Race/Ethnicity, Customized
Other
1 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
2 Participants
n=4 Participants
Race/Ethnicity, Customized
Hispanic or Latino
5 Participants
n=5 Participants
4 Participants
n=7 Participants
3 Participants
n=5 Participants
12 Participants
n=4 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
22 Participants
n=5 Participants
25 Participants
n=7 Participants
28 Participants
n=5 Participants
75 Participants
n=4 Participants
Region of Enrollment
United States
27 participants
n=5 Participants
29 participants
n=7 Participants
31 participants
n=5 Participants
87 participants
n=4 Participants

PRIMARY outcome

Timeframe: within 75 weeks

Population: Full Analysis Set

Occurrence, relationship and intensity of any serious AE (SAE)

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Number of Participants With SAEs
Any SAE
0 Participants
0 Participants
2 Participants
Number of Participants With SAEs
Any SAE with intensity >= Grade 3
0 Participants
0 Participants
2 Participants
Number of Participants With SAEs
Any SAE assessed as related to vaccine
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: within 75 weeks

Population: Full Analysis Set

Occurrence, relationship to the trial vaccine, and intensity of any adverse event of special interest (AESI)

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Number of Participants With AESIs
Any AESI
0 Participants
0 Participants
1 Participants
Number of Participants With AESIs
Any AESI with intensity >= Grade 3
0 Participants
0 Participants
0 Participants
Number of Participants With AESIs
Any AESI assessed as related to vaccine
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: within 29 days after any vaccination

Population: Full Analysis Set

Number of Participants with any Grade \>=3 Adverse Event probably, possibly, or definitely related to the study vaccine. Pooled solicited and unsolicited AEs.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Number of Participants With Related Grade >=3 Adverse Events
4 Participants
5 Participants
3 Participants

SECONDARY outcome

Timeframe: within 29 days after any vaccination

Population: Full Analysis Set

Occurrence of unsolicited non-serious AEs by relationship to study vaccine

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Number of Unsolicited Non-serious Adverse Events: Relationship to Vaccination
Possible
1 events
1 events
0 events
Number of Unsolicited Non-serious Adverse Events: Relationship to Vaccination
Probable
0 events
0 events
1 events
Number of Unsolicited Non-serious Adverse Events: Relationship to Vaccination
Unrelated/None
4 events
4 events
13 events
Number of Unsolicited Non-serious Adverse Events: Relationship to Vaccination
Unlikely
1 events
2 events
1 events
Number of Unsolicited Non-serious Adverse Events: Relationship to Vaccination
Definite
0 events
0 events
0 events

SECONDARY outcome

Timeframe: within 29 days after any vaccination

Population: Full Analysis Set

Occurrence of unsolicited non-serious AEs by Intensity

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Number of Unsolicited Non-serious Adverse Events: Intensity
Mild
4 events
7 events
9 events
Number of Unsolicited Non-serious Adverse Events: Intensity
Moderate
1 events
0 events
6 events
Number of Unsolicited Non-serious Adverse Events: Intensity
Severe
1 events
0 events
0 events

SECONDARY outcome

Timeframe: within 8 days after any vaccination

Population: Full Analysis Set

Number of participants with solicited local AEs (redness, swelling, induration, pruritus, and pain) by intensity. Percentages based on subjects with at least one completed diary card. \[Injection site erythema, injection site swelling and injection site induration--all sizes measured in diameter with max severity of: 0=0, 1 = \<30 mm, 2 = ≥30 - \<100 mm, 3 = ≥100 mm. Injection site pruritus: 0=absent, 1=mild, 2=moderate, 3=severe. Injection site pain: 0=absent, 1=painful to touch, 2=painful when limb is moved, 3=spontaneously painful/prevents normal activity.\]

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Number of Participants With Solicited Local Adverse Events
Injection Site Pain, Grade 1
5 Participants
4 Participants
11 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Pain, Grade 2
10 Participants
11 Participants
10 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Pain, Grade 3
2 Participants
4 Participants
1 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Erythema, Grade 1
7 Participants
11 Participants
15 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Erythema, Grade 2
1 Participants
0 Participants
3 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Erythema, Grade 3
0 Participants
0 Participants
0 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Swelling, Grade 1
9 Participants
9 Participants
9 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Swelling, Grade 2
1 Participants
1 Participants
4 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Swelling, Grade 3
0 Participants
0 Participants
0 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Induration, Grade 1
7 Participants
5 Participants
9 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Induration, Grade 2
1 Participants
1 Participants
1 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Induration, Grade 3
0 Participants
0 Participants
0 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Pruritus, Grade 1
7 Participants
6 Participants
15 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Pruritus, Grade 2
4 Participants
2 Participants
3 Participants
Number of Participants With Solicited Local Adverse Events
Injection Site Pruritus, Grade 3
1 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: within 8 days after any vaccination

Population: Full Analysis Set

Number of Participants with solicited systemic/general AEs (pyrexia, headache, myalgia, nausea, fatigue, and chills) by intensity. Percentages based on subjects with at least one completed diary card. \[Body temperature: 0 = \<99.5 F (\<37.5 C), 1 = ≥99.5 - \<100.4 F (≥37.5 - \<38.0 C), 2= ≥100.4 - \<102.2 F (≥38.0 - \<39.0 C), 3= ≥102.2 - \<104.0 F (≥39.0 - \<40.0 C), 4= ≥ 104.0 F (≥40.0 C); pyrexia is defined as oral temperature ≥ 100.4 F (≥ 38.0 C).\] \[Headache, myalgia, nausea, chills and fatigue: 0 = none, 1 = mild: easily tolerated, minimal discomfort and no interference with daily activity, 2 = moderate: some interference with daily activity, 3 = severe: prevents daily activity.\]

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Number of Participants With Solicited General AEs
Pyrexia, Grade 1
0 Participants
0 Participants
0 Participants
Number of Participants With Solicited General AEs
Pyrexia, Grade 2
1 Participants
0 Participants
0 Participants
Number of Participants With Solicited General AEs
Pyrexia, Grade 3
0 Participants
0 Participants
0 Participants
Number of Participants With Solicited General AEs
Headache, Grade 1
8 Participants
5 Participants
6 Participants
Number of Participants With Solicited General AEs
Headache, Grade 2
1 Participants
3 Participants
3 Participants
Number of Participants With Solicited General AEs
Headache, Grade 3
0 Participants
2 Participants
1 Participants
Number of Participants With Solicited General AEs
Myalgia, Grade 1
6 Participants
6 Participants
8 Participants
Number of Participants With Solicited General AEs
Myalgia, Grade 2
2 Participants
6 Participants
4 Participants
Number of Participants With Solicited General AEs
Myalgia, Grade 3
1 Participants
0 Participants
1 Participants
Number of Participants With Solicited General AEs
Chills, Grade 1
4 Participants
4 Participants
5 Participants
Number of Participants With Solicited General AEs
Chills, Grade 2
2 Participants
2 Participants
1 Participants
Number of Participants With Solicited General AEs
Chills, Grade 3
1 Participants
0 Participants
0 Participants
Number of Participants With Solicited General AEs
Nausea, Grade 1
3 Participants
4 Participants
4 Participants
Number of Participants With Solicited General AEs
Nausea, Grade 2
3 Participants
0 Participants
2 Participants
Number of Participants With Solicited General AEs
Nausea, Grade 3
0 Participants
2 Participants
0 Participants
Number of Participants With Solicited General AEs
Fatigue, Grade 1
5 Participants
4 Participants
5 Participants
Number of Participants With Solicited General AEs
Fatigue, Grade 2
2 Participants
5 Participants
5 Participants
Number of Participants With Solicited General AEs
Fatigue, Grade 3
2 Participants
2 Participants
1 Participants

SECONDARY outcome

Timeframe: within 15 days after each vaccination

Population: Full Analysis Set

Mean CD4+ T-cell counts over time

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=27 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
CD4+ T Cell Counts
Screening
304.9 CD4 count (cells/µL)
Standard Deviation 104.77
295.3 CD4 count (cells/µL)
Standard Deviation 111.10
349.6 CD4 count (cells/µL)
Standard Deviation 133.71
CD4+ T Cell Counts
Week 2
337.4 CD4 count (cells/µL)
Standard Deviation 118.18
357.0 CD4 count (cells/µL)
Standard Deviation 157.87
335.7 CD4 count (cells/µL)
Standard Deviation 111.11
CD4+ T Cell Counts
Week 6
319.1 CD4 count (cells/µL)
Standard Deviation 117.91
365.4 CD4 count (cells/µL)
Standard Deviation 197.04
345.0 CD4 count (cells/µL)
Standard Deviation 96.22
CD4+ T Cell Counts
Week 14
NA CD4 count (cells/µL)
Standard Deviation NA
N/A=week 14 visit not scheduled for Group 1
NA CD4 count (cells/µL)
Standard Deviation NA
N/A=week 14 visit not scheduled for Group 2
351.9 CD4 count (cells/µL)
Standard Deviation 114.53

SECONDARY outcome

Timeframe: within 64 weeks

Population: Per-protocol Set

GMTs based on vaccinia-specific ELISA. Titers below the detection limit are included with a value of '1'.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Geometric Mean Titers (GMT) Measured by Enzyme-linked Immunosorbent Assay (ELISA) at All Immunogenicity Sampling Points
Week 0
1.5 Titer
Interval 0.8 to 2.6
1.2 Titer
Interval 0.8 to 1.7
1.8 Titer
Interval 0.9 to 3.5
Geometric Mean Titers (GMT) Measured by Enzyme-linked Immunosorbent Assay (ELISA) at All Immunogenicity Sampling Points
Week 4
40.0 Titer
Interval 15.3 to 105.1
47.1 Titer
Interval 20.7 to 107.1
41.8 Titer
Interval 16.2 to 107.8
Geometric Mean Titers (GMT) Measured by Enzyme-linked Immunosorbent Assay (ELISA) at All Immunogenicity Sampling Points
Week 6
552.2 Titer
Interval 337.1 to 904.4
846.1 Titer
Interval 475.3 to 1506.1
726.1 Titer
Interval 371.3 to 1419.8
Geometric Mean Titers (GMT) Measured by Enzyme-linked Immunosorbent Assay (ELISA) at All Immunogenicity Sampling Points
Week 12
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 1
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 2
193.1 Titer
Interval 90.9 to 410.5
Geometric Mean Titers (GMT) Measured by Enzyme-linked Immunosorbent Assay (ELISA) at All Immunogenicity Sampling Points
Week 14
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 1
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 2
1591.2 Titer
Interval 1158.1 to 2186.3
Geometric Mean Titers (GMT) Measured by Enzyme-linked Immunosorbent Assay (ELISA) at All Immunogenicity Sampling Points
Week 30/38
34.6 Titer
Interval 12.2 to 98.5
30.8 Titer
Interval 11.3 to 83.5
143.3 Titer
Interval 67.6 to 303.9
Geometric Mean Titers (GMT) Measured by Enzyme-linked Immunosorbent Assay (ELISA) at All Immunogenicity Sampling Points
Week 56/64
25.2 Titer
Interval 8.4 to 75.7
27.5 Titer
Interval 9.6 to 79.2
116.2 Titer
Interval 57.9 to 233.2

SECONDARY outcome

Timeframe: Week 6

Population: Per-protocol Set

GMTs based on vaccinia-specific ELISA. Titers below the detection limit are included with a value of '1'.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=46 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
ELISA GMT 2 Weeks Following the Second Vaccination (Group 2 Compared to Group 1 and Group 3 (Combined))
644.6 Titer
Interval 422.7 to 983.0
846.1 Titer
Interval 475.3 to 1506.1

SECONDARY outcome

Timeframe: Week 6 (Groups 1 and 2), Week 14 (Group 3)

Population: Per-protocol Set

GMTs based on vaccinia-specific ELISA. Titers below the detection limit are included with a value of '1'.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
ELISA GMT 2 Weeks Following the Last Vaccination
552.2 Titer
Interval 337.1 to 904.4
846.1 Titer
Interval 475.3 to 1506.1
1591.2 Titer
Interval 1158.1 to 2186.3

SECONDARY outcome

Timeframe: Weeks 30 and 56 (Groups 1 and 2), Weeks 38 and 64 (Group 3)

Population: Per-protocol Set

GMTs based on vaccinia-specific ELISA. Titers below the detection limit are included with a value of '1'. Participants discontinued prior to the follow-up visits are excluded.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=18 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=22 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=24 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
ELISA GMT During Follow-up
Week 30/38
34.6 Titer
Interval 12.2 to 98.5
30.8 Titer
Interval 11.3 to 83.5
143.3 Titer
Interval 67.6 to 303.9
ELISA GMT During Follow-up
Week 56/64
25.2 Titer
Interval 8.4 to 75.7
27.5 Titer
Interval 9.6 to 79.2
116.2 Titer
Interval 57.9 to 233.2

SECONDARY outcome

Timeframe: within 64 weeks

Population: Per-protocol Set

GMTs based on vaccinia-specific PRNT. Titers below the detection limit are included with a value of '1'.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
GMTs Measured by Plaque Reduction Neutralization Test (PRNT) at All Immunogenicity Sampling Points
Week 0
NA Titer
None of the participants have titer values above the detection limit.
NA Titer
None of the participants have titer values above the detection limit.
1.2 Titer
Interval 0.8 to 1.9
GMTs Measured by Plaque Reduction Neutralization Test (PRNT) at All Immunogenicity Sampling Points
Week 4
3.9 Titer
Interval 1.9 to 8.1
4.8 Titer
Interval 2.5 to 9.2
10.1 Titer
Interval 4.8 to 21.1
GMTs Measured by Plaque Reduction Neutralization Test (PRNT) at All Immunogenicity Sampling Points
Week 6
78.9 Titer
Interval 49.9 to 124.8
100.3 Titer
Interval 59.8 to 168.4
95.9 Titer
Interval 54.6 to 168.3
GMTs Measured by Plaque Reduction Neutralization Test (PRNT) at All Immunogenicity Sampling Points
Week 12
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 1
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 2
35.5 Titer
Interval 19.6 to 64.5
GMTs Measured by Plaque Reduction Neutralization Test (PRNT) at All Immunogenicity Sampling Points
Week 14
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 1
NA Titer
N/A=week 12 and 14 visits not scheduled for Group 2
281.1 Titer
Interval 166.6 to 474.1
GMTs Measured by Plaque Reduction Neutralization Test (PRNT) at All Immunogenicity Sampling Points
Week 30/38
6.2 Titer
Interval 2.6 to 14.8
11.5 Titer
Interval 5.6 to 23.5
41.5 Titer
Interval 22.6 to 75.9
GMTs Measured by Plaque Reduction Neutralization Test (PRNT) at All Immunogenicity Sampling Points
Week 56/64
6.2 Titer
Interval 2.5 to 15.4
10.6 Titer
Interval 5.3 to 21.2
45.3 Titer
Interval 26.0 to 79.0

SECONDARY outcome

Timeframe: Week 6

Population: Per-protocol Set

GMTs based on vaccinia-specific PRNT. Titers below the detection limit are included with a value of '1'.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=46 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
PRNT GMT 2 Weeks Following the Second Vaccination (Group 2 Compared to Group 1 and Group 3 (Combined))
88.1 Titer
Interval 61.3 to 126.6
100.3 Titer
Interval 59.8 to 168.4

SECONDARY outcome

Timeframe: Week 6 (Groups 1 and 2), Week 14 (Group 3)

Population: Per-protocol Set

GMTs based on vaccinia-specific PRNT. Titers below the detection limit are included with a value of '1'.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
PRNT GMT 2 Weeks Following the Last Vaccination
78.9 Titer
Interval 49.9 to 124.8
100.3 Titer
Interval 59.8 to 168.4
281.1 Titer
Interval 166.6 to 474.1

SECONDARY outcome

Timeframe: Weeks 30 and 56 (Groups 1 and 2), Weeks 38 and 64 (Group 3)

Population: Per-protocol Set

GMTs based on vaccinia-specific PRNT. Titers below the detection limit are included with a value of '1'. Participants discontinued prior to the follow-up visits are excluded.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=18 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=22 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=24 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
PRNT GMT During Follow-up
Week 56/64
6.2 Titer
Interval 2.5 to 15.4
10.6 Titer
Interval 5.3 to 21.2
45.3 Titer
Interval 26.0 to 79.0
PRNT GMT During Follow-up
Week 30/38
6.2 Titer
Interval 2.6 to 14.8
11.5 Titer
Interval 5.6 to 23.5
41.5 Titer
Interval 22.6 to 75.9

SECONDARY outcome

Timeframe: within 64 weeks

Population: Per-protocol Set

SC rate based on ELISA. SC is defined as the appearance of antibody titers \>= detection limit (50) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by ELISA
Week 4
75.0 percentage of subjects
Interval 50.9 to 91.3
82.6 percentage of subjects
Interval 61.2 to 95.0
69.2 percentage of subjects
Interval 48.2 to 85.7
Percentage of Participants With Seroconversion by ELISA
Week 6
100.0 percentage of subjects
Interval 83.2 to 100.0
100.0 percentage of subjects
Interval 85.2 to 100.0
92.3 percentage of subjects
Interval 74.9 to 99.1
Percentage of Participants With Seroconversion by ELISA
Week 12
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 1
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 2
84.6 percentage of subjects
Interval 65.1 to 95.6
Percentage of Participants With Seroconversion by ELISA
Week 14
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 1
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 2
100.0 percentage of subjects
Interval 86.8 to 100.0
Percentage of Participants With Seroconversion by ELISA
Week 30/38
77.8 percentage of subjects
Interval 52.4 to 93.6
72.7 percentage of subjects
Interval 49.8 to 89.3
83.3 percentage of subjects
Interval 62.6 to 95.3
Percentage of Participants With Seroconversion by ELISA
Week 56/64
66.7 percentage of subjects
Interval 41.0 to 86.7
68.2 percentage of subjects
Interval 45.1 to 86.1
83.3 percentage of subjects
Interval 62.6 to 95.3

SECONDARY outcome

Timeframe: Week 6

Population: Per-protocol Set

SC rate based on ELISA. SC is defined as the appearance of antibody titers \>= detection limit (50) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=46 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by ELISA 2 Weeks Following the Second Vaccination (Group 2 Compared to Group 1 and Group 3 (Combined))
95.7 percentage of subjects
Interval 85.2 to 99.5
100.0 percentage of subjects
Interval 85.2 to 100.0

SECONDARY outcome

Timeframe: Week 6 (Groups 1 and 2), Week 14 (Group 3)

Population: Per-protocol Set

SC rate based on ELISA. SC is defined as the appearance of antibody titers \>= detection limit (50) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by ELISA 2 Weeks Following the Last Vaccination
100.0 percentage of subjects
Interval 83.2 to 100.0
100.0 percentage of subjects
Interval 85.2 to 100.0
100.0 percentage of subjects
Interval 86.8 to 100.0

SECONDARY outcome

Timeframe: Weeks 30 and 56 (Groups 1 and 2), Weeks 38 and 64 (Group 3)

Population: Per-protocol Set

SC rate based on ELISA. SC is defined as the appearance of antibody titers \>= detection limit (50) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=18 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=22 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=24 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by ELISA During Follow-up
Week 30/38
77.8 percentage of subjects
Interval 52.4 to 93.6
72.7 percentage of subjects
Interval 49.8 to 89.3
83.3 percentage of subjects
Interval 62.6 to 95.3
Percentage of Participants With Seroconversion by ELISA During Follow-up
Week 56/64
66.7 percentage of subjects
Interval 41.0 to 86.7
68.2 percentage of subjects
Interval 45.1 to 86.1
83.3 percentage of subjects
Interval 62.6 to 95.3

SECONDARY outcome

Timeframe: within 64 weeks

Population: Per-protocol Set

SC rate based on PRNT. SC is defined as the appearance of antibody titers \>= detection limit (2) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by PRNT
Week 4
60.0 percentage of subjects
Interval 36.1 to 80.9
69.6 percentage of subjects
Interval 47.1 to 86.8
80.8 percentage of subjects
Interval 60.6 to 93.4
Percentage of Participants With Seroconversion by PRNT
Week 6
100.0 percentage of subjects
Interval 83.2 to 100.0
100.0 percentage of subjects
Interval 85.2 to 100.0
96.2 percentage of subjects
Interval 80.4 to 99.9
Percentage of Participants With Seroconversion by PRNT
Week 12
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 1
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 2
96.2 percentage of subjects
Interval 80.4 to 99.9
Percentage of Participants With Seroconversion by PRNT
Week 14
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 1
NA percentage of subjects
N/A=week 12 and 14 visits not scheduled for Group 2
100.0 percentage of subjects
Interval 86.8 to 100.0
Percentage of Participants With Seroconversion by PRNT
Week 30/38
72.2 percentage of subjects
Interval 46.5 to 90.3
81.8 percentage of subjects
Interval 59.7 to 94.8
91.7 percentage of subjects
Interval 73.0 to 99.0
Percentage of Participants With Seroconversion by PRNT
Week 56/64
66.7 percentage of subjects
Interval 41.0 to 86.7
72.7 percentage of subjects
Interval 49.8 to 89.3
95.8 percentage of subjects
Interval 78.9 to 99.9

SECONDARY outcome

Timeframe: Week 6

Population: Per-protocol Set

SC rate based on PRNT. SC is defined as the appearance of antibody titers \>= detection limit (2) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=46 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by PRNT 2 Weeks Following the Second Vaccination (Group 2 Compared to Group 1 and Group 3 (Combined))
97.8 percentage of subjects
Interval 88.5 to 99.9
100.0 percentage of subjects
Interval 85.2 to 100.0

SECONDARY outcome

Timeframe: Week 6 (Groups 1 and 2), Week 14 (Group 3)

Population: Per-protocol Set

SC rate based on PRNT. SC is defined as the appearance of antibody titers \>= detection limit (2) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=20 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=23 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=26 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by PRNT 2 Weeks Following the Last Vaccination
100.0 percentage of subjects
Interval 83.2 to 100.0
100.0 percentage of subjects
Interval 85.2 to 100.0
100.0 percentage of subjects
Interval 86.8 to 100.0

SECONDARY outcome

Timeframe: Weeks 30 and 56 (Groups 1 and 2), Weeks 38 and 64 (Group 3)

Population: Per-protocol Set

SC rate based on PRNT. SC is defined as the appearance of antibody titers \>= detection limit (2) for initially seronegative subjects, or a doubling or more of the antibody titer compared to Baseline titer for initially seropositive subjects. Percentages based on number of subjects with data available.

Outcome measures

Outcome measures
Measure
Group 1 (Standard Regimen)
n=18 Participants
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=22 Participants
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=24 Participants
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Percentage of Participants With Seroconversion by PRNT During Follow-up
Week 30/38
72.2 percentage of subjects
Interval 46.5 to 90.3
81.8 percentage of subjects
Interval 59.7 to 94.8
91.7 percentage of subjects
Interval 73.0 to 99.0
Percentage of Participants With Seroconversion by PRNT During Follow-up
Week 56/64
66.7 percentage of subjects
Interval 41.0 to 86.7
72.7 percentage of subjects
Interval 49.8 to 89.3
95.8 percentage of subjects
Interval 78.9 to 99.9

Adverse Events

Group 1 (Standard Regimen)

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

Group 2 (Double Dose Regimen)

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Group 3 (Booster Regimen)

Serious events: 2 serious events
Other events: 10 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Group 1 (Standard Regimen)
n=27 participants at risk
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 participants at risk
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 participants at risk
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Gastrointestinal disorders
Pancreatitis
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Psychiatric disorders
Depression
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks

Other adverse events

Other adverse events
Measure
Group 1 (Standard Regimen)
n=27 participants at risk
One injection at Day 0 and Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 2 (Double Dose Regimen)
n=29 participants at risk
Two injections at Day 0 and two injections at Day 28 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Group 3 (Booster Regimen)
n=31 participants at risk
One injection at Day 0 and Day 28 and one booster injection at week 12 with IMVAMUNE® (MVA-BN®) IMVAMUNE®: 0.5 ml Modified Vaccinia Ankara Strain - Bavarian Nordic (MVA-BN®) smallpox vaccine containing at least 1 x 10E8 TCID50 per ml
Gastrointestinal disorders
Inguinal hernia
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Gastrointestinal disorders
Vomiting
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
General disorders
Influenza like illness
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
General disorders
Non-cardiac chest pain
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Hepatobiliary disorders
Hyperbilirubinaemia
3.7%
1/27 • Number of events 1 • within 75 weeks
0.00%
0/29 • within 75 weeks
0.00%
0/31 • within 75 weeks
Infections and infestations
Furuncle
3.7%
1/27 • Number of events 1 • within 75 weeks
0.00%
0/29 • within 75 weeks
0.00%
0/31 • within 75 weeks
Infections and infestations
Herpes zoster
3.7%
1/27 • Number of events 1 • within 75 weeks
0.00%
0/29 • within 75 weeks
0.00%
0/31 • within 75 weeks
Infections and infestations
Influenza
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Infections and infestations
Rhinitis
0.00%
0/27 • within 75 weeks
3.4%
1/29 • Number of events 1 • within 75 weeks
0.00%
0/31 • within 75 weeks
Infections and infestations
Skin bacterial infection
0.00%
0/27 • within 75 weeks
3.4%
1/29 • Number of events 1 • within 75 weeks
0.00%
0/31 • within 75 weeks
Infections and infestations
Upper respiratory tract infection
3.7%
1/27 • Number of events 1 • within 75 weeks
0.00%
0/29 • within 75 weeks
0.00%
0/31 • within 75 weeks
Injury, poisoning and procedural complications
Human bite
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Injury, poisoning and procedural complications
Laceration
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Injury, poisoning and procedural complications
Ulna fracture
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Investigations
Blood creatinine increased
0.00%
0/27 • within 75 weeks
3.4%
1/29 • Number of events 1 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Investigations
Troponin I increased
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Musculoskeletal and connective tissue disorders
Myalgia
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Musculoskeletal and connective tissue disorders
Neck pain
0.00%
0/27 • within 75 weeks
3.4%
1/29 • Number of events 1 • within 75 weeks
0.00%
0/31 • within 75 weeks
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/27 • within 75 weeks
3.4%
1/29 • Number of events 1 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Respiratory, thoracic and mediastinal disorders
Nasal congestion
0.00%
0/27 • within 75 weeks
0.00%
0/29 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
3.7%
1/27 • Number of events 1 • within 75 weeks
0.00%
0/29 • within 75 weeks
0.00%
0/31 • within 75 weeks
Respiratory, thoracic and mediastinal disorders
Productive cough
0.00%
0/27 • within 75 weeks
3.4%
1/29 • Number of events 1 • within 75 weeks
3.2%
1/31 • Number of events 1 • within 75 weeks
Respiratory, thoracic and mediastinal disorders
Sinus congestion
3.7%
1/27 • Number of events 1 • within 75 weeks
0.00%
0/29 • within 75 weeks
0.00%
0/31 • within 75 weeks
Skin and subcutaneous tissue disorders
Rash
0.00%
0/27 • within 75 weeks
3.4%
1/29 • Number of events 1 • within 75 weeks
0.00%
0/31 • within 75 weeks

Additional Information

Program Lead, Clinical Operations

Bavarian Nordic A/S

Phone: +45 3326

Results disclosure agreements

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