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

MERS (Middle East Respiratory Syndrome) Clinical Trial

Official title:

An Open, Single Center Phase I Trial to Assess the Safety, Tolerability and Immunogenicity of Two Ascending Doses of the Candidate Vaccine MVA-MERS-S

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03615911
• Other study ID #: UKE-DZIF1-MVA-MERS-S
• Status: Completed
• Phase: Phase 1
• Start date: November 28, 2017
• Est. completion date: May 10, 2019

Study information

• Verified date: October 2020
• Source: Universitätsklinikum Hamburg-Eppendorf
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The Middle East Respiratory Syndrome Coronavirus (MERS-CoV) is a potentially fatal disease with a reported lethality of up to 40% that is under tight epidemiologic control by the World Health Organization (WHO) and currently without registered prevention or treatment option.

In this phase I first-in-human clinical trial, healthy volunteers in two different dose cohorts will be vaccinated twice with the candidate vaccine MVA-MERS-S. A subgroup will additionally receive a late booster vaccination.

The aim of the study is to assess the safety and tolerability of the candidate vaccine and to characterize its immunogenicity.

Description:

The vaccine contains a Modified Vaccinia Virus Ankara (MVA) vector expressing the MERS-CoV spike glycoprotein (S). A total of 24 participants will receive the following vaccine regime:

12 participants will receive 10^7 plaque-forming units (PFU) of MVA-MERS-S on days 0 and 28.

12 participants will receive 10^8 PFU of MVA-MERS-S on days 0 and 28.

Safety and immunogenicity data will be collected throughout the study, which concludes at day 180.

Update March 2019: A subgroup of participants from both dose cohorts will receive a late booster immunization of 10^8 PFU MVA-MERS-S 12 months (+/- 4 months) after prime immunization.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 26
• Est. completion date: May 10, 2019
• Est. primary completion date: April 15, 2019
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 55 Years

Eligibility

Inclusion Criteria:

The participant must not be enrolled before all inclusion criteria (including test results) are confirmed. Subjects meeting all of the criteria listed below will be included in the study:

1. Ability to understand the subject information and to personally sign and date the informed consent to participate in the study, before completing any study related procedures.

2. Provided written informed consent.

3. Healthy male and female participants aged 18 - 55 years inclusive at the time of consent. The date of signing informed consent is defined as the beginning of the screening period. This inclusion criterion will only be assessed at the first screening visit.

4. No clinically significant health problems as determined during medical history and physical examination at screening visit.

5. Body weight in defined relation to height. Body mass index 18.5 - 30.0 kg/m2 and weight >50 kg at screening.

6. Females of child-bearing potential who agree to apply effective contraception methods (defined as a contraceptive method with failure rate of less than 1% per year when used consistently and correctly ) from at least 7 days prior to vaccination until the end of the study or females who are permanently sterilized (at least 6 weeks post-sterilization).

7. Males who agree to apply effective contraception methods from day 0 through day 56.

8. Be willing to refrain from blood donation during the course of the study.

9. The subject is co-operative and available for the entire study.

Exclusion Criteria:

Participants are excluded from the study if any of the following criteria are met at screening or at day -1:

1. Prior receipt of a MERS vaccine or MVA immunizations.

2. Receipt of any vaccine in the 2 weeks prior to 1st trial vaccination (4 weeks for live vaccines) or planned receipt of any vaccine in the 3 weeks following the 2nd trial vaccination.

3. Known allergy to the components of the MVA-MERS-S vaccine product as eggs, chicken proteins, and gentamycin or history of life-threatening reactions to vaccine containing the same substances.

4. Participation in a clinical trial or use of an investigational product within 30 days or five times the half-life of the investigational drug -whichever is longer- prior to receiving the first dose within this study.

5. Evidence in the subject's medical history or in the medical examination that might influence either the safety of the subject or the absorption, distribution, metabolism or excretion of the investigational product under investigation.

6. Any positive result for human immunodeficiency virus (HIV)1/2 antibody, hepatitis C virus (HCV) antibody or hepatitis B surface antigen (HBsAg) testing.

7. Any confirmed or suspected immunosuppressive or immunodeficient condition, cytotoxic therapy in the previous 5 years, and/or diabetes.

8. Participants with inflammatory, infectious and neuroinflammatory underlying disease which could cause an expected impairment of the blood brain barrier such as meningitis, multiple sclerosis, epilepsy, or Alzheimer's disease.

9. Any chronic or active neurologic disorder, including migraines, seizures, and epilepsy, excluding a single febrile seizure as a child.

10. Known history of Guillain-Barré Syndrome.

11. Active malignancy or history of metastatic or hematologic malignancy.

12. Suspected or known alcohol and/or illicit drug abuse within the past 5 years.

13. Moderate or severe illness and/or fever >38°C within 1 week prior to vaccination.

14. Administration of immunoglobulins and/or any blood products within the 120 days preceding study entry or planned administration during the study period.

15. History of blood donation within 60 days of enrollment or plans to donate within the treatment phase (until the 2nd vaccination).

16. Receipt of chronic (defined as more than 14 days) immune suppressants or other immune-modifying drugs within 6 months of study inclusion (screening).

• For corticosteroids, this will mean prednisone, or equivalent, greater than or equal to 0.5 mg/kg/day.

• Intranasal and topical steroids are allowed.

17. Participants with skin lesions close to the injection site or active oral lesions will be excluded.

18. Thrombocytopenia, contraindicating intramuscular vaccination based on investigator's judgment.

19. Participants with a significant infection or known inflammation.

20. History of relevant cardiovascular disorders or evidence of hyper- (sitting blood pressure systolic >140 or diastolic >90 mmHg) or hypotension (sitting blood pressure systolic <90 or diastolic <40 mmHg) at screening.

21. Subjects who are known or suspected not to comply with the study directives.

22. Any other significant finding that in the opinion of the investigator would increase the risk of the individual having an adverse outcome from participating in this study.

Related Conditions & MeSH terms

• Coronavirus Infections
• MERS (Middle East Respiratory Syndrome)

Intervention

Biological:
• vaccine candidate MVA-MERS-S
vaccination with MVA-MERS-S in two escalating dose regimes

Locations

Country	Name	City	State
Germany	CTC North GmbH & Co. KG at the University Medical Center Hamburg-Eppendorf	Hamburg

Sponsors (6)

Lead Sponsor	Collaborator
Marylyn Addo	Bernhard Nocht Institute for Tropical Medicine, Charite University, Berlin, Germany, Ludwig-Maximilians - University of Munich, Philipps University Marburg Medical Center, University of Cologne

Country where clinical trial is conducted

Germany, 

References & Publications (7)

Agnihothram S, Gopal R, Yount BL Jr, Donaldson EF, Menachery VD, Graham RL, Scobey TD, Gralinski LE, Denison MR, Zambon M, Baric RS. Evaluation of serologic and antigenic relationships between middle eastern respiratory syndrome coronavirus and other coronaviruses to develop vaccine platforms for the rapid response to emerging coronaviruses. J Infect Dis. 2014 Apr 1;209(7):995-1006. doi: 10.1093/infdis/jit609. Epub 2013 Nov 18. — View Citation

Haagmans BL, van den Brand JM, Raj VS, Volz A, Wohlsein P, Smits SL, Schipper D, Bestebroer TM, Okba N, Fux R, Bensaid A, Solanes Foz D, Kuiken T, Baumgärtner W, Segalés J, Sutter G, Osterhaus AD. An orthopoxvirus-based vaccine reduces virus excretion after MERS-CoV infection in dromedary camels. Science. 2016 Jan 1;351(6268):77-81. doi: 10.1126/science.aad1283. Epub 2015 Dec 17. — View Citation

Memish ZA, Zumla AI, Al-Hakeem RF, Al-Rabeeah AA, Stephens GM. Family cluster of Middle East respiratory syndrome coronavirus infections. N Engl J Med. 2013 Jun 27;368(26):2487-94. doi: 10.1056/NEJMoa1303729. Epub 2013 May 29. Erratum in: N Engl J Med. 2013 Aug 8;369(6):587. — View Citation

Song F, Fux R, Provacia LB, Volz A, Eickmann M, Becker S, Osterhaus AD, Haagmans BL, Sutter G. Middle East respiratory syndrome coronavirus spike protein delivered by modified vaccinia virus Ankara efficiently induces virus-neutralizing antibodies. J Virol. 2013 Nov;87(21):11950-4. doi: 10.1128/JVI.01672-13. Epub 2013 Aug 28. — View Citation

Sutter G, Moss B. Nonreplicating vaccinia vector efficiently expresses recombinant genes. Proc Natl Acad Sci U S A. 1992 Nov 15;89(22):10847-51. — View Citation

van Boheemen S, de Graaf M, Lauber C, Bestebroer TM, Raj VS, Zaki AM, Osterhaus AD, Haagmans BL, Gorbalenya AE, Snijder EJ, Fouchier RA. Genomic characterization of a newly discovered coronavirus associated with acute respiratory distress syndrome in humans. mBio. 2012 Nov 20;3(6). pii: e00473-12. doi: 10.1128/mBio.00473-12. — View Citation

Zaki AM, van Boheemen S, Bestebroer TM, Osterhaus AD, Fouchier RA. Isolation of a novel coronavirus from a man with pneumonia in Saudi Arabia. N Engl J Med. 2012 Nov 8;367(19):1814-20. doi: 10.1056/NEJMoa1211721. Epub 2012 Oct 17. Erratum in: N Engl J Med. 2013 Jul 25;369(4):394. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Percentage of Participants Experiencing Solicited Local or Systemic Reactogenicity as Defined by the Study Protocol	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.	14 days after each vaccination
Primary	Percentage of Participants Who Experienced an Unsolicited Adverse Event	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.	28 days after each vaccination
Primary	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)	The safety laboratory measures include: - Clinical Chemistry: CRP in miligrams per liter [mg/l]	Throughout the study up to conclusion
Primary	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)	The safety laboratory measures include Hematology: WBC count in billions per liter [billion cells/L]	Throughout the study up to conclusion
Primary	Percentage of Participants Experiencing a Serious Adverse Event up to Day 180 (Study Completion)	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.	Throughout the study up to conclusion
Secondary	Immunogenicity: Number of Participants Who Seroconverted Throughout the Study (up to Study Completion at Day 180)	Humoral immunity: The magnitude of MVA-MERS-S antibody responses as assessed by neutralization assay and ELISA.	Throughout the study up to conclusion

External Links

•   Middle East respiratory syndrome coronavirus situation updates