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A Non-inferiority Trial to Compare MVA-BN® Smallpox Vaccine to ACAM2000®

A Randomized, Open-label Phase III Non-inferiority Trial to Compare Indicators of Efficacy for MVA-BN® Smallpox Vaccine to ACAM2000® in 18-42 Year Old Healthy Vaccinia-naïve Subjects

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01913353
Enrollment
440
Registered
2013-08-01
Start date
2015-03-31
Completion date
2017-08-31
Last updated
2019-12-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

18-42 Year Old Healthy Vaccinia-naïve Subjects

Brief summary

To demonstrate the efficacy of MVA-BN® in terms of vaccinia-specific Plaque Reduction Neutralization Test (PRNT) antibody response and by showing that vaccination prior to administration of ACAM2000® results in an attenuated take.

Detailed description

To demonstrate the efficacy of MVA-BN® by assessing non-inferiority of MVA-BN® compared to ACAM2000® in terms of vaccinia-specific Plaque Reduction Neutralization Test (PRNT) antibody response at the Peak Visits (Day 42 for Group 1 and Day 28 for Group 2) and by showing that vaccination with MVA-BN® prior to administration of ACAM2000® results in an attenuation of take.

Interventions

BIOLOGICALMVA BN®

0.5 ml MVA BN® with a nominal titer of 1x10E8 TCID50, administered as a subcutaneous injection

BIOLOGICALACAM2000®

0.0025 ml ACAM2000®, consisting of 2.5-12.5x10E5 plaque forming units of live vaccinia virus (VACV). Picked up with a bifurcated needle and administered by the percutaneous route (scarification) using 15 jabs of that bifurcated needle.

Sponsors

US Army Medical Research Institute of Infectious Diseases
CollaboratorFED
Bavarian Nordic
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 42 Years
Healthy volunteers
Yes

Inclusion criteria

1. Healthy male and female subjects, 18-42 years of age 2. The subject has read, signed and dated the Informed Consent, having been advised of the risks and benefits of the trial in a language understood by the subject and prior to performance of any trial specific procedure 3. Acceptable medical history by screening evaluation and physical examination 4. BMI greater or eaqual than 18.5 and smaller than 35 5. Women of childbearing potential (WOCBP) must have a negative serum pregnancy test at Screening and a negative urine or serum pregnancy test within 24 hours prior to each vaccination 6. WOCBP must have used an acceptable method of contraception for 28 days prior to the first vaccination, must agree to use an acceptable method of contraception during the trial, and must avoid becoming pregnant for at least 28 days after the last vaccination. A woman is considered of childbearing potential unless post-menopausal or surgically sterilized. (Acceptable contraception methods are restricted to abstinence, barrier contraceptives, intrauterine contraceptive devices or licensed hormonal products) 7. Human Immunodeficiency Virus (HIV) antibody negative, hepatitis B surface antigen negative and negative antibody test to hepatitis C virus 8. White blood cells greater or eaqual than 2500/mm3 and smaller than 11,000/mm3 9. Hemoglobin within normal limits 10. Platelets greater or eaqual than lower normal limits 11. Adequate renal function defined as a calculated Creatinine Clearance (CrCl) greater than 60 ml/min as estimated by the Cockcroft-Gault equation 12. Adequate hepatic function in the absence of other evidence of significant liver disease defined as: * Total bilirubin greater than 1.5 x Upper Limit Normal (ULN) * Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST) greater than 1.5 x ULN * Alkaline Phosphatase (Alk Phos) greater than 1.5 x ULN 13. Troponin I smaller than 2 x ULN 14. Electrocardiogram (ECG) without clinically significant findings, e.g. any kind of atrioventricular or intraventricular conditions or blocks such as complete left or right bundle branch block, atrioventricular node block, QTc or PR prolongation, premature atrial contractions or other atrial arrhythmia, sustained ventricular arrhythmia, two premature ventricular contractions in a row, ST elevation consistent with ischemia

Exclusion criteria

1. Pregnant or breast-feeding women 2. Typical vaccinia scar 3. Known or suspected history of smallpox vaccination defined as visible vaccination scar or documentation of smallpox vaccination or as reported by the subject 4. History of vaccination with any poxvirus-based vaccine 5. History of any serious medical condition, which in the opinion of the investigator would compromise the safety of the subject 6. History of or active immunodeficiency or immunosuppression caused by acquired or congenital diseases or caused by ongoing treatments such as chronic (greater than 14 days) high-dose corticosteroids (smaller than 5 mg prednisone \[or equivalent\] per day applied systemically, i.e. parenterally or orally), chronic or planned treatment with steroid eye drops or ointment at time of enrollment or radiation, or immunosuppressive drugs; low-dose corticosteroid topical products and nasal sprays used sporadically, i.e. pro re nata (according to circumstances) are permissible 7. Having had radiation or X-ray treatment (not routine X-rays) within the last 3 months 8. Post organ and bone-marrow transplant subjects whether or not receiving chronic immunosuppressive therapy 9. Eye surgery within 4 weeks prior to trial vaccination 10. History of or active autoimmune disease. Persons with vitiligo or thyroid disease taking thyroid hormone replacement are not excluded 11. Uncontrolled serious infection, i.e. not responding to antimicrobial therapy 12. History of malignancy, other than squamous cell or basal cell skin cancer, unless there has been surgical excision considered to have achieved cure. Subjects with history of skin cancer must not be vaccinated at the previous site of cancer 13. History of keloid formation 14. History or clinical manifestation of severe hematological, renal, hepatic, pulmonary, central nervous, cardiovascular or gastrointestinal disorders 15. History of coronary heart disease, myocardial infarction, angina, congestive heart failure, cardiomyopathy, stroke or transient ischemic attack, uncontrolled high blood pressure, or any other heart condition under the care of a doctor 16. Chest pain (that is diagnosed as cardiac related) or trouble breathing on exertion 17. Ten percent or greater risk of developing a myocardial infarction or coronary death within the next 10 years using the National Cholesterol Education Program's Risk Assessment Tool: http://hin.nhlbi.nih.gov/atpiii/calculator.asp NOTE: This criterion applies only to subjects 20 years of age and older 18. History of an immediate family member (father, mother, brother, or sister) who has had onset of ischemic heart disease before the age of 50 years 19. Clinically significant psychological disorder not adequately controlled by medical treatment 20. Active or history of chronic alcohol abuse and/or intravenous and/or nasal drug abuse (within the past 6 months) 21. History of anaphylaxis or any severe allergic reaction or serious adverse reaction to a vaccine 22. Eczema of any degree or history of eczema 23. People with active atopic dermatitis (AD) \[characterized by pruritus, eczematous lesions, xerosis (dry skin), and lichenification (thickening of the skin and an increase in skin markings\] or with a history of AD 24. People with chronic exfoliative skin disorders/conditions 25. People with active current Varicella zoster, Herpes zoster, impetigo, uncontrolled acne, Darier's disease or any acute skin disorders of large magnitude, e.g., laceration requiring sutures 26. People with a tattoo that covers the vaccination injection area (preventing assessment of the area and interfering with a vaccination site photograph) 27. Having received any vaccinations or planned vaccinations with a live vaccine within 28 days prior to or after trial vaccination 28. Having received any vaccinations or planned vaccinations with a killed vaccine within 14 days prior to or after trial vaccination 29. Administration or planned administration of immunoglobulins and/or any blood products during a period starting from three months prior to administration of the vaccine and ending at trial conclusion 30. Use of any investigational or non-registered drug or vaccine other than the trial vaccines within 28 days preceding the first dose of the trial vaccine or planned administration of such a drug /vaccine during the trial period 31. Blood donation for the duration of the trial 32. Acute disease (illness with or without a fever) at the time of enrollment 33. Temperature ≥ 100.4°F (38.0°C) at the time of enrollment 34. Known household contacts with, or occupational exposure (other than minimal contact) to any of the following: * Pregnant women * Children \<12 months of age * People with eczema or a history of eczema * People with active AD or history of AD * People with chronic exfoliative skin disorders/conditions * People with active Varicella zoster, Herpes zoster, impetigo, uncontrolled acne, Darier's disease or any acute skin disorders of large magnitude, e.g., laceration requiring sutures, burn with areas greater than 2×2 cm * People with active or recent immunodeficiency disease or use of immunosuppressive medications, for example: have or take medication for HIV, AIDS, leukemia, lymphoma, or chronic liver problem, have or take medication for Crohn's disease, lupus, arthritis, or other immune disease; have had radiation or X-ray treatment (not routine X-rays) within the last 3 months; have ever had a bone-marrow or organ transplant (or take medication for that ); or have another problem that requires steroids, prednisone or a cancer drug for treatment * People having had eye surgery within the last 4 weeks 35. Known allergy to MVA-BN® vaccine or any of its constituents, e.g. tris(hydroxymethyl)-amino methane, including known allergy to egg or aminoglycoside (gentamycin) 36. Known allergies to ACAM2000® and its diluents including polymyxin B sulfate, neomycin sulfate, and phenol 37. Known allergies to vaccinia immunoglobulin (VIG) including thimerosal or previous allergic reaction to immunoglobulins 38. Known allergies to cidofovir, sulfa drugs, or probenecid 39. Trial personnel

Design outcomes

Primary

MeasureTime frameDescription
Plaque Reduction Neutralization Test (PRNT) Geometric Mean Titer (GMT) at the Peak VisitsDay 42 for Group 1 and Day 28 for Group 2GMT based on vaccinia-specific PRNT. Titers below the detection limit are included with a value of 1.
Maximum Lesion Area (MLA) in mm2 After Scarification With ACAM2000®Day 6-8, 13-15 after 3rd Vaccination for Group 1 and Day 6-8, 13-15 after 1st vaccination for Group 2The MLA was defined as the maximum of two measurements: the lesion area measured on Day 6-8 (after scarification) or the lesion area measured on Day 13-15 (after scarification). This was measured using the SilhouetteConnect camera system, and confirmed by the Independent Take Review Committee (ITRC).

Secondary

MeasureTime frameDescription
Investigator-measured Lesion Diameter in mm at Day 13-15 After Scarification With ACAM2000Day 13-15 after ACAM2000 scarificationThe lesion diameter at Day 13-15 was defined as the major lesion diameter measured on Day 13-15 (after scarification)
Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Day 6-8 visit following ACAM2000 vaccinationTake was assessed as either full, partial, or absent take by the ITRC based on Day 6-8 evaluations following ACAM2000 vaccination using subject profiles that contained supportive data up to Day 14 following ACAM2000 vaccination (in accordance with the ITRC Charter).
Lesion Area in mm2 at Day 6-8 After Scarification With ACAM2000Day 6-8 after ACAM2000 scarificationLesion area was measured by the Investigator using the SilhouetteConnect camera system and confirmed by the blinded ITRC.
Lesion Area in mm2 at Day 13-15 After Scarification With ACAM2000Day 13-15 after ACAM2000 scarificationLesion area was measured by the Investigator using the SilhouetteConnect camera system and confirmed by the blinded ITRC.
Relationship to Vaccine of Any Serious Adverse Event (SAE)Within 38 weeks for Group 1 and 30 weeks for Group 2Presentation of SAEs by relationship to study vaccine
Intensity of Any Serious Adverse Event (SAE)Within 38 weeks for Group 1 and 30 weeks for Group 2Presentation of SAEs by intensity
Incidence of Any Cardiac Sign or Symptom Indicating a Case of Myo-/Pericarditis, i.e. Adverse Events of Special Interest (AESIs)Within 38 weeks for Group 1 and 30 weeks for Group 2In this clinical trial, an AESI was defined as any cardiac sign or symptom developed since the first vaccination, any ECG changes determined to be clinically significant, or any cardiac enzyme results of Troponin I ≥ 2 x ULN.
Related Grade >=3 Adverse Eventswithin 29 days after vaccinationIncidence of any Grade 3 or 4 adverse events (AEs) possibly, probably, or definitely related to the vaccine. Pooled solicited (general only) and unsolicited AEs.
Relationship to Vaccine of Any Non-serious AEswithin 29 days after vaccinationPresentation of non-serious AEs by relationship to study vaccine
Intensity of Any Non-serious AEswithin 29 days after vaccinationPresentation of non-serious AEs by intensity
Investigator-measured Maximum Lesion Diameter (MLD) in mm After Scarification With ACAM2000Day 6-8 and Day 13-15 after ACAM2000 scarificationThe MLD was defined as the largest major diameter measured across the lesion on Day 6-8 (after scarification) or Day 13-15 (after scarification)
Incidence of Lymphadenopathywithin 29 days after vaccinationIncidence of events of Lymphadenopathy. Pooled solicited and unsolicited events.
Solicited Local AEs: Intensitywithin 15 days after vaccinationIncidence of solicited local AEs (pain, redness \[erythema\], swelling, induration, itching \[pruritus\])
Major Lesion Size, Major Erythema, and Major Induration DiameterWithin 15 days after scarification with ACAM2000Daily measurement of major lesion size, major erythema, and major induration diameter (mm) based on physical appearance of vaccination site as documented in the memory aid. If the shape of the lesion, erythema \[excludes lymphangitis\], and induration observed was not round but rather asymmetrical, then the largest \[or major\] cross-sectional measurement was recorded.
GMTs at the Peak Visits and Individual Peak Measured by Vaccinia-specific ELISAwithin 8 weeks (for both groups)Peak Visit was defined as Day 42 for Group 1 and Day 28 for Group 2. Individual Peak was the maximum titer per subject from Visit 1 to Visit 7 (Week 8) in Group 1 and maximum titer from Visit 1 to Visit 6 (Week 8) in Group 2. Titers below the detection limit are included with a value of 1.
GMTs at the Individual Peak Measured by Vaccinia-specific PRNTwithin 8 weeks (for both groups)Individual Peak was the maximum titer per subject from Visit 1 to Visit 7 (Week 8) in Group 1 and maximum titer from Visit 1 to Visit 6 (Week 8) in Group 2. Titers below the detection limit are included with a value of 1.
GMTs as Measured by Vaccinia-specific ELISAwithin 12 weeksGMT based on vaccinia-specific ELISA. Titers below the detection limit are included with a value of '1'.
GMTs as Measured by Vaccinia-specific PRNTwithin 12 weeksGMT based on vaccinia-specific PRNT. Titers below the detection limit are included with a value of '1'.
PRNT Seroconversion Rates at Peak VisitsGroup 1 at Week 6; Group 2 at Week 4Seroconversion rate based on PRNT. Seroconversion is defined as the appearance of antibody titers greater than or equal 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.
ELISA Seroconversion Rates at Peak VisitsGroup 1 at Week 6; Group 2 at Week 4Seroconversion rate based on ELISA. Seroconversion is defined as the appearance of antibody titers greater than or equal 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.
Solicited General AEswithin 15 days after vaccinationOccurrence, intensity and relationship of solicited general AEs (body temperature \[fever\], headache, myalgia \[muscle pain\], chills, nausea, fatigue, malaise)
Investigator-measured Lesion Diameter in mm at Day 6-8 After Scarification With ACAM2000Day 6-8 after ACAM2000 scarificationThe lesion diameter at Day 6-8 was defined as the major lesion diameter measured on Day 6-8 (after scarification)

Countries

South Korea

Participant flow

Participants by arm

ArmCount
Group 1
Two vaccinations; MVA BN ®; administered 4 weeks apart (Day 0 and Day 28) followed by a single vaccination of ACAM2000® vaccine 4 weeks after the second MVA BN® vaccination (Day 56). MVA BN®: 0.5 ml MVA BN® with a nominal titre of 1x10E8 TCID50, administered as a subcutaneous injection ACAM2000®: 0.0025 ml ACAM2000®, consisting of 2.5-12.5x10E5 plaque forming units of live vaccinia virus (VACV). Picked up with a bifurcated needle and administered by the percutaneous route (scarification) using 15 jabs of that bifurcated needle.
220
Group 2
A single vaccination of ACAM2000® will be administered at Day 0. ACAM2000®: 0.0025 ml ACAM2000®, consisting of 2.5-12.5x10E5 plaque forming units of live vaccinia virus (VACV). Picked up with a bifurcated needle and administered by the percutaneous route (scarification) using 15 jabs of that bifurcated needle.
213
Total433

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event20
Overall Studymultiple reasons107
Overall StudyPhysician Decision02
Overall StudyWithdrawal by Subject206

Baseline characteristics

CharacteristicGroup 1TotalGroup 2
Age, Continuous23.5 years
STANDARD_DEVIATION 4.77
23.5 years
STANDARD_DEVIATION 4.67
23.4 years
STANDARD_DEVIATION 4.58
Ethnicity (NIH/OMB)
Hispanic or Latino
54 Participants94 Participants40 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
166 Participants339 Participants173 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
8 Participants14 Participants6 Participants
Race (NIH/OMB)
Asian
14 Participants26 Participants12 Participants
Race (NIH/OMB)
Black or African American
48 Participants88 Participants40 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
5 Participants8 Participants3 Participants
Race (NIH/OMB)
Unknown or Not Reported
19 Participants35 Participants16 Participants
Race (NIH/OMB)
White
126 Participants262 Participants136 Participants
Region of Enrollment
South Korea
220 participants433 participants213 participants
Sex: Female, Male
Female
39 Participants68 Participants29 Participants
Sex: Female, Male
Male
181 Participants365 Participants184 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 2200 / 2080 / 1960 / 213
other
Total, other adverse events
95 / 22063 / 20879 / 19688 / 213
serious
Total, serious adverse events
2 / 2200 / 2083 / 1963 / 213

Outcome results

Primary

Maximum Lesion Area (MLA) in mm2 After Scarification With ACAM2000®

The MLA was defined as the maximum of two measurements: the lesion area measured on Day 6-8 (after scarification) or the lesion area measured on Day 13-15 (after scarification). This was measured using the SilhouetteConnect camera system, and confirmed by the Independent Take Review Committee (ITRC).

Time frame: Day 6-8, 13-15 after 3rd Vaccination for Group 1 and Day 6-8, 13-15 after 1st vaccination for Group 2

Population: Per-protocol Set

ArmMeasureValue (MEDIAN)
Group 1Maximum Lesion Area (MLA) in mm2 After Scarification With ACAM2000®0.0 mm2
Group 2Maximum Lesion Area (MLA) in mm2 After Scarification With ACAM2000®76.0 mm2
95% CI: [96.6, 98.3]
Primary

Plaque Reduction Neutralization Test (PRNT) Geometric Mean Titer (GMT) at the Peak Visits

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

Time frame: Day 42 for Group 1 and Day 28 for Group 2

Population: Per-protocol Set for Immunogenicity

ArmMeasureValue (GEOMETRIC_MEAN)
Group 1Plaque Reduction Neutralization Test (PRNT) Geometric Mean Titer (GMT) at the Peak Visits153.5 Titer
Group 2Plaque Reduction Neutralization Test (PRNT) Geometric Mean Titer (GMT) at the Peak Visits79.3 Titer
95% CI: [1.562, 2.397]
Secondary

ELISA Seroconversion Rates at Peak Visits

Seroconversion rate based on ELISA. Seroconversion is defined as the appearance of antibody titers greater than or equal 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.

Time frame: Group 1 at Week 6; Group 2 at Week 4

Population: Per-protocol Set for Immunogenicity

ArmMeasureValue (NUMBER)
Group 1ELISA Seroconversion Rates at Peak Visits100 percentage of subjects
Group 2ELISA Seroconversion Rates at Peak Visits96.8 percentage of subjects
Secondary

GMTs as Measured by Vaccinia-specific ELISA

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

Time frame: within 12 weeks

Population: Per-protocol Set for Immunogenicity

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1GMTs as Measured by Vaccinia-specific ELISAWeek 2104.9 Titer
Group 1GMTs as Measured by Vaccinia-specific ELISAWeek 61076.9 Titer
Group 1GMTs as Measured by Vaccinia-specific ELISAWeek 11.6 Titer
Group 1GMTs as Measured by Vaccinia-specific ELISAWeek 8671.9 Titer
Group 1GMTs as Measured by Vaccinia-specific ELISAWeek 4129.8 Titer
Group 1GMTs as Measured by Vaccinia-specific ELISAWeek 12550.5 Titer
Group 1GMTs as Measured by Vaccinia-specific ELISAWeek 01.2 Titer
Group 2GMTs as Measured by Vaccinia-specific ELISAWeek 12NA Titer
Group 2GMTs as Measured by Vaccinia-specific ELISAWeek 01.2 Titer
Group 2GMTs as Measured by Vaccinia-specific ELISAWeek 11.2 Titer
Group 2GMTs as Measured by Vaccinia-specific ELISAWeek 221.9 Titer
Group 2GMTs as Measured by Vaccinia-specific ELISAWeek 4194.6 Titer
Group 2GMTs as Measured by Vaccinia-specific ELISAWeek 6149.2 Titer
Group 2GMTs as Measured by Vaccinia-specific ELISAWeek 8113.7 Titer
Secondary

GMTs as Measured by Vaccinia-specific PRNT

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

Time frame: within 12 weeks

Population: Per-protocol Set for Immunogenicity

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1GMTs as Measured by Vaccinia-specific PRNTWeek 216.2 Titer
Group 1GMTs as Measured by Vaccinia-specific PRNTWeek 6153.5 Titer
Group 1GMTs as Measured by Vaccinia-specific PRNTWeek 11.1 Titer
Group 1GMTs as Measured by Vaccinia-specific PRNTWeek 8118.2 Titer
Group 1GMTs as Measured by Vaccinia-specific PRNTWeek 416.9 Titer
Group 1GMTs as Measured by Vaccinia-specific PRNTWeek 1296.5 Titer
Group 1GMTs as Measured by Vaccinia-specific PRNTWeek 01.0 Titer
Group 2GMTs as Measured by Vaccinia-specific PRNTWeek 12NA Titer
Group 2GMTs as Measured by Vaccinia-specific PRNTWeek 01.0 Titer
Group 2GMTs as Measured by Vaccinia-specific PRNTWeek 11.0 Titer
Group 2GMTs as Measured by Vaccinia-specific PRNTWeek 216.2 Titer
Group 2GMTs as Measured by Vaccinia-specific PRNTWeek 479.3 Titer
Group 2GMTs as Measured by Vaccinia-specific PRNTWeek 664.7 Titer
Group 2GMTs as Measured by Vaccinia-specific PRNTWeek 867.1 Titer
Secondary

GMTs at the Individual Peak Measured by Vaccinia-specific PRNT

Individual Peak was the maximum titer per subject from Visit 1 to Visit 7 (Week 8) in Group 1 and maximum titer from Visit 1 to Visit 6 (Week 8) in Group 2. Titers below the detection limit are included with a value of 1.

Time frame: within 8 weeks (for both groups)

Population: Per-protocol Set for Immunogenicity

ArmMeasureValue (GEOMETRIC_MEAN)
Group 1GMTs at the Individual Peak Measured by Vaccinia-specific PRNT201.5 Titer
Group 2GMTs at the Individual Peak Measured by Vaccinia-specific PRNT117.8 Titer
Secondary

GMTs at the Peak Visits and Individual Peak Measured by Vaccinia-specific ELISA

Peak Visit was defined as Day 42 for Group 1 and Day 28 for Group 2. Individual Peak was the maximum titer per subject from Visit 1 to Visit 7 (Week 8) in Group 1 and maximum titer from Visit 1 to Visit 6 (Week 8) in Group 2. Titers below the detection limit are included with a value of 1.

Time frame: within 8 weeks (for both groups)

Population: Per-protocol Set for Immunogenicity

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Group 1GMTs at the Peak Visits and Individual Peak Measured by Vaccinia-specific ELISAPeak Visit1076.9 Titer
Group 1GMTs at the Peak Visits and Individual Peak Measured by Vaccinia-specific ELISAIndividual Peak1105.2 Titer
Group 2GMTs at the Peak Visits and Individual Peak Measured by Vaccinia-specific ELISAPeak Visit194.6 Titer
Group 2GMTs at the Peak Visits and Individual Peak Measured by Vaccinia-specific ELISAIndividual Peak214.0 Titer
Secondary

Incidence of Any Cardiac Sign or Symptom Indicating a Case of Myo-/Pericarditis, i.e. Adverse Events of Special Interest (AESIs)

In this clinical trial, an AESI was defined as any cardiac sign or symptom developed since the first vaccination, any ECG changes determined to be clinically significant, or any cardiac enzyme results of Troponin I ≥ 2 x ULN.

Time frame: Within 38 weeks for Group 1 and 30 weeks for Group 2

Population: Full Analysis Set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group 1Incidence of Any Cardiac Sign or Symptom Indicating a Case of Myo-/Pericarditis, i.e. Adverse Events of Special Interest (AESIs)2 Participants
Group 2Incidence of Any Cardiac Sign or Symptom Indicating a Case of Myo-/Pericarditis, i.e. Adverse Events of Special Interest (AESIs)2 Participants
Group 1, Period 3Incidence of Any Cardiac Sign or Symptom Indicating a Case of Myo-/Pericarditis, i.e. Adverse Events of Special Interest (AESIs)3 Participants
Group 2Incidence of Any Cardiac Sign or Symptom Indicating a Case of Myo-/Pericarditis, i.e. Adverse Events of Special Interest (AESIs)4 Participants
Secondary

Incidence of Lymphadenopathy

Incidence of events of Lymphadenopathy. Pooled solicited and unsolicited events.

Time frame: within 29 days after vaccination

Population: Full Analysis Set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group 1Incidence of Lymphadenopathy24 Participants
Group 2Incidence of Lymphadenopathy15 Participants
Group 1, Period 3Incidence of Lymphadenopathy17 Participants
Group 2Incidence of Lymphadenopathy109 Participants
Secondary

Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)

Take was assessed as either full, partial, or absent take by the ITRC based on Day 6-8 evaluations following ACAM2000 vaccination using subject profiles that contained supportive data up to Day 14 following ACAM2000 vaccination (in accordance with the ITRC Charter).

Time frame: Day 6-8 visit following ACAM2000 vaccination

Population: Per-protocol Set

ArmMeasureGroupValue (NUMBER)
Group 1Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Full Take23.0 percentage of subjects
Group 1Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Partial Take23.0 percentage of subjects
Group 1Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Absent Take53.9 percentage of subjects
Group 1Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Missing0 percentage of subjects
Group 2Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Missing1.2 percentage of subjects
Group 2Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Full Take92.5 percentage of subjects
Group 2Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Absent Take1.9 percentage of subjects
Group 2Individual Take as Classified by a Blinded Independent Take Review Committee (ITRC)Partial Take4.3 percentage of subjects
Secondary

Intensity of Any Non-serious AEs

Presentation of non-serious AEs by intensity

Time frame: within 29 days after vaccination

Population: Full Analysis Set

ArmMeasureGroupValue (NUMBER)
Group 1Intensity of Any Non-serious AEsMild233 Events
Group 1Intensity of Any Non-serious AEsSevere4 Events
Group 1Intensity of Any Non-serious AEsModerate20 Events
Group 2Intensity of Any Non-serious AEsMild141 Events
Group 2Intensity of Any Non-serious AEsSevere1 Events
Group 2Intensity of Any Non-serious AEsModerate16 Events
Group 1, Period 3Intensity of Any Non-serious AEsModerate18 Events
Group 1, Period 3Intensity of Any Non-serious AEsMild143 Events
Group 1, Period 3Intensity of Any Non-serious AEsSevere5 Events
Group 2Intensity of Any Non-serious AEsMild163 Events
Group 2Intensity of Any Non-serious AEsSevere7 Events
Group 2Intensity of Any Non-serious AEsModerate25 Events
Secondary

Intensity of Any Serious Adverse Event (SAE)

Presentation of SAEs by intensity

Time frame: Within 38 weeks for Group 1 and 30 weeks for Group 2

Population: Full Analysis Set

ArmMeasureGroupValue (NUMBER)
Group 1Intensity of Any Serious Adverse Event (SAE)Mild: routine daily activity not impaired0 participants
Group 1Intensity of Any Serious Adverse Event (SAE)Moderate: routine daily activity impaired0 participants
Group 1Intensity of Any Serious Adverse Event (SAE)Severe: prevents routine daily activities1 participants
Group 1Intensity of Any Serious Adverse Event (SAE)Life threatening4 participants
Group 2Intensity of Any Serious Adverse Event (SAE)Life threatening2 participants
Group 2Intensity of Any Serious Adverse Event (SAE)Mild: routine daily activity not impaired0 participants
Group 2Intensity of Any Serious Adverse Event (SAE)Severe: prevents routine daily activities1 participants
Group 2Intensity of Any Serious Adverse Event (SAE)Moderate: routine daily activity impaired0 participants
Secondary

Investigator-measured Lesion Diameter in mm at Day 13-15 After Scarification With ACAM2000

The lesion diameter at Day 13-15 was defined as the major lesion diameter measured on Day 13-15 (after scarification)

Time frame: Day 13-15 after ACAM2000 scarification

Population: Per-protocol Set

ArmMeasureValue (MEDIAN)
Group 1Investigator-measured Lesion Diameter in mm at Day 13-15 After Scarification With ACAM20000.0 mm
Group 2Investigator-measured Lesion Diameter in mm at Day 13-15 After Scarification With ACAM200010.0 mm
Secondary

Investigator-measured Lesion Diameter in mm at Day 6-8 After Scarification With ACAM2000

The lesion diameter at Day 6-8 was defined as the major lesion diameter measured on Day 6-8 (after scarification)

Time frame: Day 6-8 after ACAM2000 scarification

Population: Per-protocol Set

ArmMeasureValue (MEDIAN)
Group 1Investigator-measured Lesion Diameter in mm at Day 6-8 After Scarification With ACAM20000.0 mm
Group 2Investigator-measured Lesion Diameter in mm at Day 6-8 After Scarification With ACAM20008.0 mm
Secondary

Investigator-measured Maximum Lesion Diameter (MLD) in mm After Scarification With ACAM2000

The MLD was defined as the largest major diameter measured across the lesion on Day 6-8 (after scarification) or Day 13-15 (after scarification)

Time frame: Day 6-8 and Day 13-15 after ACAM2000 scarification

Population: Per-protocol Set

ArmMeasureValue (MEDIAN)
Group 1Investigator-measured Maximum Lesion Diameter (MLD) in mm After Scarification With ACAM20000.0 mm
Group 2Investigator-measured Maximum Lesion Diameter (MLD) in mm After Scarification With ACAM200011.0 mm
Secondary

Lesion Area in mm2 at Day 13-15 After Scarification With ACAM2000

Lesion area was measured by the Investigator using the SilhouetteConnect camera system and confirmed by the blinded ITRC.

Time frame: Day 13-15 after ACAM2000 scarification

Population: Per-protocol Set

ArmMeasureValue (MEDIAN)
Group 1Lesion Area in mm2 at Day 13-15 After Scarification With ACAM20000.0 mm2
Group 2Lesion Area in mm2 at Day 13-15 After Scarification With ACAM200075.0 mm2
Secondary

Lesion Area in mm2 at Day 6-8 After Scarification With ACAM2000

Lesion area was measured by the Investigator using the SilhouetteConnect camera system and confirmed by the blinded ITRC.

Time frame: Day 6-8 after ACAM2000 scarification

Population: Per-protocol Set

ArmMeasureValue (MEDIAN)
Group 1Lesion Area in mm2 at Day 6-8 After Scarification With ACAM20000.0 mm2
Group 2Lesion Area in mm2 at Day 6-8 After Scarification With ACAM200037.0 mm2
Secondary

Major Lesion Size, Major Erythema, and Major Induration Diameter

Daily measurement of major lesion size, major erythema, and major induration diameter (mm) based on physical appearance of vaccination site as documented in the memory aid. If the shape of the lesion, erythema \[excludes lymphangitis\], and induration observed was not round but rather asymmetrical, then the largest \[or major\] cross-sectional measurement was recorded.

Time frame: Within 15 days after scarification with ACAM2000

Population: Full Analysis Set

ArmMeasureGroupValue (MEDIAN)
Group 1Major Lesion Size, Major Erythema, and Major Induration DiameterMaximum Lesion Diameter5.0 mm
Group 1Major Lesion Size, Major Erythema, and Major Induration DiameterMaximum Erythema6.0 mm
Group 1Major Lesion Size, Major Erythema, and Major Induration DiameterMaximum Induration5.0 mm
Group 2Major Lesion Size, Major Erythema, and Major Induration DiameterMaximum Lesion Diameter11.5 mm
Group 2Major Lesion Size, Major Erythema, and Major Induration DiameterMaximum Erythema26.0 mm
Group 2Major Lesion Size, Major Erythema, and Major Induration DiameterMaximum Induration15.0 mm
Secondary

PRNT Seroconversion Rates at Peak Visits

Seroconversion rate based on PRNT. Seroconversion is defined as the appearance of antibody titers greater than or equal 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.

Time frame: Group 1 at Week 6; Group 2 at Week 4

Population: Per-protocol Set for Immunogenicity

ArmMeasureValue (NUMBER)
Group 1PRNT Seroconversion Rates at Peak Visits100.0 percentage of subjects
Group 2PRNT Seroconversion Rates at Peak Visits97.3 percentage of subjects
Secondary

Related Grade >=3 Adverse Events

Incidence of any Grade 3 or 4 adverse events (AEs) possibly, probably, or definitely related to the vaccine. Pooled solicited (general only) and unsolicited AEs.

Time frame: within 29 days after vaccination

Population: Full Analysis Set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Group 1Related Grade >=3 Adverse Events3 Participants
Group 2Related Grade >=3 Adverse Events2 Participants
Group 1, Period 3Related Grade >=3 Adverse Events3 Participants
Group 2Related Grade >=3 Adverse Events22 Participants
Secondary

Relationship to Vaccine of Any Non-serious AEs

Presentation of non-serious AEs by relationship to study vaccine

Time frame: within 29 days after vaccination

Population: Full Analysis Set

ArmMeasureGroupValue (NUMBER)
Group 1Relationship to Vaccine of Any Non-serious AEsProbable5 Events
Group 1Relationship to Vaccine of Any Non-serious AEsDefinite107 Events
Group 1Relationship to Vaccine of Any Non-serious AEsUnlikely24 Events
Group 1Relationship to Vaccine of Any Non-serious AEsUnrelated/None94 Events
Group 1Relationship to Vaccine of Any Non-serious AEsPossible27 Events
Group 2Relationship to Vaccine of Any Non-serious AEsUnrelated/None67 Events
Group 2Relationship to Vaccine of Any Non-serious AEsProbable1 Events
Group 2Relationship to Vaccine of Any Non-serious AEsDefinite56 Events
Group 2Relationship to Vaccine of Any Non-serious AEsUnlikely19 Events
Group 2Relationship to Vaccine of Any Non-serious AEsPossible15 Events
Group 1, Period 3Relationship to Vaccine of Any Non-serious AEsUnrelated/None110 Events
Group 1, Period 3Relationship to Vaccine of Any Non-serious AEsPossible18 Events
Group 1, Period 3Relationship to Vaccine of Any Non-serious AEsUnlikely29 Events
Group 1, Period 3Relationship to Vaccine of Any Non-serious AEsProbable0 Events
Group 1, Period 3Relationship to Vaccine of Any Non-serious AEsDefinite9 Events
Group 2Relationship to Vaccine of Any Non-serious AEsProbable6 Events
Group 2Relationship to Vaccine of Any Non-serious AEsUnlikely23 Events
Group 2Relationship to Vaccine of Any Non-serious AEsPossible30 Events
Group 2Relationship to Vaccine of Any Non-serious AEsUnrelated/None102 Events
Group 2Relationship to Vaccine of Any Non-serious AEsDefinite34 Events
Secondary

Relationship to Vaccine of Any Serious Adverse Event (SAE)

Presentation of SAEs by relationship to study vaccine

Time frame: Within 38 weeks for Group 1 and 30 weeks for Group 2

Population: Full Analysis Set

ArmMeasureGroupValue (NUMBER)
Group 1Relationship to Vaccine of Any Serious Adverse Event (SAE)Definite0 Events
Group 1Relationship to Vaccine of Any Serious Adverse Event (SAE)Unlikely1 Events
Group 1Relationship to Vaccine of Any Serious Adverse Event (SAE)Possible0 Events
Group 1Relationship to Vaccine of Any Serious Adverse Event (SAE)Probable0 Events
Group 1Relationship to Vaccine of Any Serious Adverse Event (SAE)Unrelated/None4 Events
Group 2Relationship to Vaccine of Any Serious Adverse Event (SAE)Probable0 Events
Group 2Relationship to Vaccine of Any Serious Adverse Event (SAE)Definite0 Events
Group 2Relationship to Vaccine of Any Serious Adverse Event (SAE)Unrelated/None2 Events
Group 2Relationship to Vaccine of Any Serious Adverse Event (SAE)Possible0 Events
Group 2Relationship to Vaccine of Any Serious Adverse Event (SAE)Unlikely1 Events
Secondary

Solicited General AEs

Occurrence, intensity and relationship of solicited general AEs (body temperature \[fever\], headache, myalgia \[muscle pain\], chills, nausea, fatigue, malaise)

Time frame: within 15 days after vaccination

Population: Full Analysis Set

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group 1Solicited General AEsNausea, Grade 2, Related0 Participants
Group 1Solicited General AEsMalaise, Grade 2, Related5 Participants
Group 1Solicited General AEsChills, Grade 2, Related0 Participants
Group 1Solicited General AEsNausea, Grade 1, Related7 Participants
Group 1Solicited General AEsFatigue, Grade 3, Related1 Participants
Group 1Solicited General AEsChills, Grade 3, Related1 Participants
Group 1Solicited General AEsMalaise, Grade 3, Related2 Participants
Group 1Solicited General AEsPyrexia, Grade 3, Related0 Participants
Group 1Solicited General AEsNausea, Grade 3, Related1 Participants
Group 1Solicited General AEsFatigue, Grade 1, Related29 Participants
Group 1Solicited General AEsPyrexia, Grade 1, Related0 Participants
Group 1Solicited General AEsHeadache, Grade 2, Related6 Participants
Group 1Solicited General AEsHeadache, Grade 3, Related1 Participants
Group 1Solicited General AEsHeadache, Grade 1, Related25 Participants
Group 1Solicited General AEsMalaise, Grade 1, Related16 Participants
Group 1Solicited General AEsMyalgia, Grade 1, Related28 Participants
Group 1Solicited General AEsMyalgia, Grade 2, Related5 Participants
Group 1Solicited General AEsFatigue, Grade 2, Related7 Participants
Group 1Solicited General AEsPyrexia, Grade 2, Related2 Participants
Group 1Solicited General AEsMyalgia, Grade 3, Related0 Participants
Group 1Solicited General AEsChills, Grade 1, Related1 Participants
Group 2Solicited General AEsNausea, Grade 1, Related4 Participants
Group 2Solicited General AEsHeadache, Grade 2, Related3 Participants
Group 2Solicited General AEsMalaise, Grade 2, Related2 Participants
Group 2Solicited General AEsFatigue, Grade 2, Related2 Participants
Group 2Solicited General AEsChills, Grade 2, Related2 Participants
Group 2Solicited General AEsPyrexia, Grade 1, Related0 Participants
Group 2Solicited General AEsPyrexia, Grade 2, Related0 Participants
Group 2Solicited General AEsHeadache, Grade 3, Related2 Participants
Group 2Solicited General AEsChills, Grade 3, Related0 Participants
Group 2Solicited General AEsMyalgia, Grade 2, Related5 Participants
Group 2Solicited General AEsChills, Grade 1, Related0 Participants
Group 2Solicited General AEsNausea, Grade 2, Related2 Participants
Group 2Solicited General AEsMalaise, Grade 3, Related1 Participants
Group 2Solicited General AEsMyalgia, Grade 3, Related1 Participants
Group 2Solicited General AEsHeadache, Grade 1, Related11 Participants
Group 2Solicited General AEsNausea, Grade 3, Related0 Participants
Group 2Solicited General AEsFatigue, Grade 3, Related1 Participants
Group 2Solicited General AEsPyrexia, Grade 3, Related1 Participants
Group 2Solicited General AEsMyalgia, Grade 1, Related13 Participants
Group 2Solicited General AEsFatigue, Grade 1, Related14 Participants
Group 2Solicited General AEsMalaise, Grade 1, Related6 Participants
Group 1, Period 3Solicited General AEsFatigue, Grade 1, Related21 Participants
Group 1, Period 3Solicited General AEsFatigue, Grade 2, Related7 Participants
Group 1, Period 3Solicited General AEsFatigue, Grade 3, Related1 Participants
Group 1, Period 3Solicited General AEsMalaise, Grade 1, Related12 Participants
Group 1, Period 3Solicited General AEsMalaise, Grade 2, Related8 Participants
Group 1, Period 3Solicited General AEsHeadache, Grade 1, Related17 Participants
Group 1, Period 3Solicited General AEsMalaise, Grade 3, Related2 Participants
Group 1, Period 3Solicited General AEsHeadache, Grade 2, Related7 Participants
Group 1, Period 3Solicited General AEsHeadache, Grade 3, Related1 Participants
Group 1, Period 3Solicited General AEsPyrexia, Grade 1, Related0 Participants
Group 1, Period 3Solicited General AEsMyalgia, Grade 1, Related15 Participants
Group 1, Period 3Solicited General AEsMyalgia, Grade 2, Related2 Participants
Group 1, Period 3Solicited General AEsMyalgia, Grade 3, Related0 Participants
Group 1, Period 3Solicited General AEsChills, Grade 1, Related8 Participants
Group 1, Period 3Solicited General AEsPyrexia, Grade 2, Related1 Participants
Group 1, Period 3Solicited General AEsChills, Grade 2, Related2 Participants
Group 1, Period 3Solicited General AEsNausea, Grade 1, Related6 Participants
Group 1, Period 3Solicited General AEsChills, Grade 3, Related0 Participants
Group 1, Period 3Solicited General AEsNausea, Grade 2, Related4 Participants
Group 1, Period 3Solicited General AEsNausea, Grade 3, Related1 Participants
Group 1, Period 3Solicited General AEsPyrexia, Grade 3, Related0 Participants
Group 2Solicited General AEsMalaise, Grade 3, Related10 Participants
Group 2Solicited General AEsNausea, Grade 1, Related21 Participants
Group 2Solicited General AEsPyrexia, Grade 1, Related1 Participants
Group 2Solicited General AEsPyrexia, Grade 2, Related1 Participants
Group 2Solicited General AEsPyrexia, Grade 3, Related1 Participants
Group 2Solicited General AEsHeadache, Grade 1, Related38 Participants
Group 2Solicited General AEsHeadache, Grade 2, Related21 Participants
Group 2Solicited General AEsHeadache, Grade 3, Related9 Participants
Group 2Solicited General AEsMyalgia, Grade 1, Related44 Participants
Group 2Solicited General AEsMyalgia, Grade 2, Related21 Participants
Group 2Solicited General AEsMyalgia, Grade 3, Related7 Participants
Group 2Solicited General AEsChills, Grade 1, Related19 Participants
Group 2Solicited General AEsChills, Grade 2, Related12 Participants
Group 2Solicited General AEsNausea, Grade 2, Related12 Participants
Group 2Solicited General AEsNausea, Grade 3, Related6 Participants
Group 2Solicited General AEsFatigue, Grade 1, Related45 Participants
Group 2Solicited General AEsFatigue, Grade 2, Related30 Participants
Group 2Solicited General AEsFatigue, Grade 3, Related8 Participants
Group 2Solicited General AEsMalaise, Grade 1, Related30 Participants
Group 2Solicited General AEsMalaise, Grade 2, Related25 Participants
Group 2Solicited General AEsChills, Grade 3, Related2 Participants
Secondary

Solicited Local AEs: Intensity

Incidence of solicited local AEs (pain, redness \[erythema\], swelling, induration, itching \[pruritus\])

Time frame: within 15 days after vaccination

Population: Full Analysis Set

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group 1Solicited Local AEs: IntensityInjection Site Erythema, Grade 144 Participants
Group 1Solicited Local AEs: IntensityInjection Site Pruritus, Grade 23 Participants
Group 1Solicited Local AEs: IntensityInjection Site Swelling, Grade 30 Participants
Group 1Solicited Local AEs: IntensityInjection Site Swelling, Grade 114 Participants
Group 1Solicited Local AEs: IntensityInjection Site Erythema, Grade 29 Participants
Group 1Solicited Local AEs: IntensityInjection Site Pruritus, Grade 124 Participants
Group 1Solicited Local AEs: IntensityInjection Site Erythema, Grade 30 Participants
Group 1Solicited Local AEs: IntensityInjection Site Pain, Grade 221 Participants
Group 1Solicited Local AEs: IntensityInjection Site Pain, Grade 172 Participants
Group 1Solicited Local AEs: IntensityInjection Site Swelling, Grade 25 Participants
Group 1Solicited Local AEs: IntensityInjection Site Induration, Grade 30 Participants
Group 1Solicited Local AEs: IntensityInjection Site Pain, Grade 34 Participants
Group 1Solicited Local AEs: IntensityInjection Site Pruritus, Grade 32 Participants
Group 1Solicited Local AEs: IntensityInjection Site Induration, Grade 21 Participants
Group 1Solicited Local AEs: IntensityInjection Site Induration, Grade 123 Participants
Group 2Solicited Local AEs: IntensityInjection Site Induration, Grade 30 Participants
Group 2Solicited Local AEs: IntensityInjection Site Swelling, Grade 26 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pain, Grade 149 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pain, Grade 222 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pain, Grade 30 Participants
Group 2Solicited Local AEs: IntensityInjection Site Erythema, Grade 140 Participants
Group 2Solicited Local AEs: IntensityInjection Site Erythema, Grade 210 Participants
Group 2Solicited Local AEs: IntensityInjection Site Erythema, Grade 30 Participants
Group 2Solicited Local AEs: IntensityInjection Site Swelling, Grade 116 Participants
Group 2Solicited Local AEs: IntensityInjection Site Swelling, Grade 30 Participants
Group 2Solicited Local AEs: IntensityInjection Site Induration, Grade 111 Participants
Group 2Solicited Local AEs: IntensityInjection Site Induration, Grade 22 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pruritus, Grade 119 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pruritus, Grade 21 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pruritus, Grade 30 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Swelling, Grade 146 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Erythema, Grade 1106 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Pruritus, Grade 211 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Swelling, Grade 30 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Induration, Grade 144 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Pain, Grade 31 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Swelling, Grade 20 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Induration, Grade 21 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Pain, Grade 26 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Induration, Grade 30 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Pruritus, Grade 199 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Erythema, Grade 29 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Pain, Grade 121 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Erythema, Grade 30 Participants
Group 1, Period 3Solicited Local AEs: IntensityInjection Site Pruritus, Grade 31 Participants
Group 2Solicited Local AEs: IntensityInjection Site Erythema, Grade 35 Participants
Group 2Solicited Local AEs: IntensityInjection Site Swelling, Grade 217 Participants
Group 2Solicited Local AEs: IntensityInjection Site Erythema, Grade 1105 Participants
Group 2Solicited Local AEs: IntensityInjection Site Induration, Grade 30 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pain, Grade 158 Participants
Group 2Solicited Local AEs: IntensityInjection Site Swelling, Grade 31 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pain, Grade 333 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pruritus, Grade 260 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pruritus, Grade 318 Participants
Group 2Solicited Local AEs: IntensityInjection Site Induration, Grade 1125 Participants
Group 2Solicited Local AEs: IntensityInjection Site Swelling, Grade 1120 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pruritus, Grade 1101 Participants
Group 2Solicited Local AEs: IntensityInjection Site Erythema, Grade 281 Participants
Group 2Solicited Local AEs: IntensityInjection Site Induration, Grade 27 Participants
Group 2Solicited Local AEs: IntensityInjection Site Pain, Grade 244 Participants

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026