Trial Outcomes & Findings for Safety, Tolerability and Immunogenicity of Vaccine Candidate MVA-MERS-S (NCT NCT03615911)

NCT ID: NCT03615911

Last Updated: 2020-10-06

Results Overview

The solicited local adverse events for this study include: Swelling, erythema, induration, hematoma and pain at site of injection The solicited systemic adverse events for this study include: * Fever * Chills * Myalgia (described to the subject as generalized muscle aches) * Arthralgia (described to the subject as generalized joint aches) * Fatigue/Malaise * Headache * Gastrointestinal symptoms The reactogenicity (adverse events) will be assessed via a trained physician taking into account a patient diary. The severity of the adverse event will be measured as specified in the study protocol (grade 0=none, grade 1=mild, grade 2=moderate, grade 3=severe). The adverse event will furthermore be categorized in related vs. not related.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

26 participants

Primary outcome timeframe

14 days after each vaccination

Results posted on

2020-10-06

Participant Flow

Participant milestones

Participant milestones
Measure
Vaccination With 10^7 PFU MVA-MERS-S
Vaccinations occur on days 0 and 28 A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization. vaccine candidate MVA-MERS-S: vaccination with MVA-MERS-S in two escalating dose regimes
Vaccination With 10^8 PFU MVA-MERS-S
Vaccinations occur on days 0 and 28 A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization. vaccine candidate MVA-MERS-S: vaccination with MVA-MERS-S in two escalating dose regimes
Overall Study
STARTED
14
12
Overall Study
Received Late Booster Immunization
3
7
Overall Study
COMPLETED
12
11
Overall Study
NOT COMPLETED
2
1

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Safety, Tolerability and Immunogenicity of Vaccine Candidate MVA-MERS-S

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=14 Participants
Vaccinations occur on days 0 and 28 A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization. vaccine candidate MVA-MERS-S: vaccination with MVA-MERS-S in two escalating dose regimes
Vaccination With 10^8 PFU MVA-MERS-S
n=12 Participants
Vaccinations occur on days 0 and 28 A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization. vaccine candidate MVA-MERS-S: vaccination with MVA-MERS-S in two escalating dose regimes
Total
n=26 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
14 Participants
n=5 Participants
12 Participants
n=7 Participants
26 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Female
10 Participants
n=5 Participants
10 Participants
n=7 Participants
20 Participants
n=5 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
2 Participants
n=7 Participants
6 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
13 Participants
n=5 Participants
11 Participants
n=7 Participants
24 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
Germany
14 participants
n=5 Participants
12 participants
n=7 Participants
26 participants
n=5 Participants
BMI (kg/m2)
23.6 kg/m2
STANDARD_DEVIATION 2.5 • n=5 Participants
23.5 kg/m2
STANDARD_DEVIATION 3.7 • n=7 Participants
23.6 kg/m2
STANDARD_DEVIATION 3.0 • n=5 Participants

PRIMARY outcome

Timeframe: 14 days after each vaccination

The solicited local adverse events for this study include: Swelling, erythema, induration, hematoma and pain at site of injection The solicited systemic adverse events for this study include: * Fever * Chills * Myalgia (described to the subject as generalized muscle aches) * Arthralgia (described to the subject as generalized joint aches) * Fatigue/Malaise * Headache * Gastrointestinal symptoms The reactogenicity (adverse events) will be assessed via a trained physician taking into account a patient diary. The severity of the adverse event will be measured as specified in the study protocol (grade 0=none, grade 1=mild, grade 2=moderate, grade 3=severe). The adverse event will furthermore be categorized in related vs. not related.

Outcome measures

Outcome measures
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=14 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Vaccination With 10^8 PFU MVA-MERS-S
n=12 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Percentage of Participants Experiencing Solicited Local or Systemic Reactogenicity as Defined by the Study Protocol
10 Participants
10 Participants

PRIMARY outcome

Timeframe: 28 days after each vaccination

The unsolicited adverse events will be assessed via a trained physician taking into account a patient diary. The severity of the adverse event will be measured as specified in the study protocol (grade 0=none, grade 1=mild, grade 2=moderate, grade 3=severe). The adverse event will furthermore be categorized in related vs. not related.

Outcome measures

Outcome measures
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=14 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Vaccination With 10^8 PFU MVA-MERS-S
n=12 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Percentage of Participants Who Experienced an Unsolicited Adverse Event
5 Participants
8 Participants

PRIMARY outcome

Timeframe: Throughout the study up to conclusion

Population: All participants were included in the safety analysis.

The safety laboratory measures include: \- Clinical Chemistry: CRP in miligrams per liter \[mg/l\]

Outcome measures

Outcome measures
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=14 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Vaccination With 10^8 PFU MVA-MERS-S
n=12 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Change of Mean C-reactive Protein (CRP) Levels (Measured in [mg/l]) From Baseline (Day -1 ) as Compared to the End of the Study (D180)
0 mg/l
Standard Deviation 0.3
-1 mg/l
Standard Deviation 3

PRIMARY outcome

Timeframe: Throughout the study up to conclusion

The safety laboratory measures include Hematology: WBC count in billions per liter \[billion cells/L\]

Outcome measures

Outcome measures
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=14 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Vaccination With 10^8 PFU MVA-MERS-S
n=12 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Change of Mean White Blood Cell (WBC) Counts (Measured in [Billion Cells/L]) From Baseline (Day -1) as Compared to the End of the Study (D180)
-1.8 Billion Cells/L
Standard Deviation 1.44
-1.0 Billion Cells/L
Standard Deviation 1.92

PRIMARY outcome

Timeframe: Throughout the study up to conclusion

Serious adverse events are defined as any untoward medical occurrence (whether considered to be related to investigational medicinal product or not) that at any dose: * results in death * is life-threatening * requires inpatient hospitalization or prolongation of existing hospitalization * results in persistent or significant disability/incapacity * is a congenital abnormality/birth defect * is an Important Medical Event, i.e., an event that may jeopardize the subject and may require medical or surgical intervention to prevent one of the outcomes listed in this definition.

Outcome measures

Outcome measures
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=14 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Vaccination With 10^8 PFU MVA-MERS-S
n=12 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Percentage of Participants Experiencing a Serious Adverse Event up to Day 180 (Study Completion)
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Throughout the study up to conclusion

Humoral immunity: The magnitude of MVA-MERS-S antibody responses as assessed by neutralization assay and ELISA.

Outcome measures

Outcome measures
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=12 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Vaccination With 10^8 PFU MVA-MERS-S
n=11 Participants
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Immunogenicity: Number of Participants Who Seroconverted Throughout the Study (up to Study Completion at Day 180)
8 Participants
10 Participants

Adverse Events

Vaccination With 10^7 PFU MVA-MERS-S

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

Vaccination With 10^8 PFU MVA-MERS-S

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

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Vaccination With 10^7 PFU MVA-MERS-S
n=14 participants at risk
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Vaccination With 10^8 PFU MVA-MERS-S
n=12 participants at risk
Vaccinations occur on days 0 and 28. A subgroup will additionally receive a late booster immunization with 10\^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.
Skin and subcutaneous tissue disorders
Local reactogenicity
57.1%
8/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
83.3%
10/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
General disorders
Fatigue and Malaise
71.4%
10/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
58.3%
7/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
Gastrointestinal disorders
Gastrointestinal Symptoms
35.7%
5/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
41.7%
5/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
Musculoskeletal and connective tissue disorders
Arthralgia
21.4%
3/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
8.3%
1/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
Musculoskeletal and connective tissue disorders
Myalgia
7.1%
1/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
33.3%
4/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
Nervous system disorders
Headache
50.0%
7/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
75.0%
9/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
General disorders
Other systemic unsolicited
7.1%
1/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
8.3%
1/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
Immune system disorders
Fever/Chills
0.00%
0/14 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).
16.7%
2/12 • Solicited AE: 14 days after each vaccination Unsolicited AE: 28 days after each vaccination SAE: Throughout the study (180 days). In case of participation in the follow-up booster immunization 12 months (+/-4 months after prime vaccination) additional 28-day follow-up time after booster vaccination.
Participants filled out a participant diary, which was assessed on study visits (Day 1, 3, 7, 14, 28 after vaccination).

Additional Information

Prof. Marylyn M. Addo

University Medical Center Hamburg-Eppendorf

Phone: +49 40 7410

Results disclosure agreements

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