Safety, Tolerability and Long-term Immunogenicity of Different Formulations of a Chikungunya Vaccine (V184-005)

Study Overview
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Brief Summary
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The purpose of this study is to investigate immunogenicity and safety of Measles Virus-Chikungunya (MV-CHIK) vaccine in different dose regimens, 28 days after one or two vaccinations.

Official Title
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Observer Blinded, Randomised Study to Investigate Safety, Tolerability and Long-term Immunogenicity of Different Dose Regimens and Formulations of MV-CHIK in Healthy Volunteers

Conditions
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Chikungunya Virus Infection

Intervention / Treatment
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* Biological: MV-CHIK lyophilised formulation, low dose
* Biological: MV-CHIK liquid frozen formulation, low dose
* Biological: MV-CHIK SPS® formulation, low dose
* Biological: MV-CHIK liquid frozen formulation, high dose
* Other: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Is able to comprehend the full nature and purpose of the study, including possible risks and side effects; ability to cooperate with the investigator and to comply with the requirements of the entire study Has a negative serum pregnancy test at screening (for female participants) Has a willingness not to become pregnant or to father a child during the entire study period by practicing reliable methods of contraception Has availability during the duration of the trial Exclusion Criteria: Has participated in another clinical study (including exposure to an investigational medicinal product or device) within one month before the screening visit or planned concurrent participation in another clinical study before completion of the treatment period Has a history of immunodeficiency, known human immunodeficiency virus (HIV) infection or current hepatitis B/C infection Has a history of drug addiction including alcohol dependence within the last 2 years Has an inability or unwillingness to avoid intake of more than around 20 grams alcohol per day during 48 hours after each vaccination (equals roughly 0.5 liter beer or 0.25 liter of wine) Has had a vaccination within 4 weeks prior to first vaccination or planning to receive any non-study vaccine until end of treatment period Has had a prior receipt of any Chikungunya vaccine Has a history of moderate or severe arthritis or arthralgia within the past 3 months prior to screening Has had a recent infection within 1 week prior to screening Has made blood donations including plasma donations, 90 days prior to screening visit and anticipated blood, plasma, tissue, sperm or organ donation, throughout the study until end of treatment period Has clinically relevant history of renal, hepatic, gastrointestinal, cardiovascular, respiratory, skin, hematological, endocrine, inflammatory, autoimmune or neurological diseases or clinically relevant abnormal laboratory values, that in the opinion of the investigator may interfere with the aim of the study Has a history of neoplastic disease (excluding non-melanoma skin cancer that was successfully treated) within the past 5 years or a history of any hematological malignancy Has behavioral, cognitive, or psychiatric condition that in the opinion of the investigator affects the ability of the participant to understand and cooperate with the study protocol Has a history of severe adverse reactions to vaccine administration, including anaphylaxis and related symptoms, such as urticaria, respiratory difficulty, angioedema and abdominal pain to vaccines, or history of allergic reaction likely to be exacerbated by any component of the vaccine Has a history of anaphylaxis to drugs or other allergic reactions, which the investigator considers compromising the safety of the participant. Use of medication during 2 weeks before the first vaccination and throughout the study, which the investigator considers affecting the validity of the study, except hormonal contraception or hormonal replacement therapy in female participants. Use of immunosuppressive drugs like corticosteroids (excluding topical preparations) within 30 days prior to the first vaccination or anticipated use before completion of the treatment period Has receipt of blood products or immunoglobulins within 120 days prior to the screening visit or anticipated receipt of any blood product or immunoglobulin before completion of the treatment period Has pregnancy (positive pregnancy test at screening or during the treatment period) or lactation at screening, or planning to become pregnant during the treatment period Has unreliable contraception methods Is a person in a direct relationship with the sponsor, an investigator or other study team members. Direct dependent relationships include close relatives (i.e. children, parents, partner/spouse, siblings) as well as employees of the study site or the sponsor

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Group A: Two MV-CHIK lyophilized low dose<br>Participants received two vaccinations with MV-CHIK lyophilized formulation, low dose, on day 0 and day 28. | Biological: MV-CHIK lyophilised formulation, low dose<br>* MV-CHIK, a live-attenuated recombinant measles vaccine expressing Chikungunya virus antigens, lyophilized low dose (powder for suspension in water for intramuscular [IM] injection): 5x10^4 ±0.5 log tissue culture infectious dose 50 (TCID50)/dose.<br>|
| Experimental: Group B: Two MV-CHIK liquid frozen low dose<br>Participants received two vaccinations with MV-CHIK liquid frozen low dose formulation on day 0 and day 28. | Biological: MV-CHIK liquid frozen formulation, low dose<br>* MV-CHIK, a live-attenuated recombinant measles vaccine expressing Chikungunya virus antigens, liquid frozen low dose (suspension for IM injection): 1x10^5 ±0.5 log TCID50/dose.<br>|
| Experimental: Group C: Two MV-CHIK liquid low dose stabilizing and protecting solution (SPS®)<br>Participants received two vaccinations with MV-CHIK liquid low dose SPS® formulation on day 0 and day 28. | Biological: MV-CHIK SPS® formulation, low dose<br>* MV-CHIK, a live-attenuated recombinant measles vaccine expressing Chikungunya virus antigens, liquid SPS® low dose (suspension for IM injection): 1x10^5 ±0.5 log TCID50/dose.<br>|
| Experimental: Group D: Two MV-CHIK liquid frozen high dose<br>Participants received two vaccinations with MV-CHIK liquid frozen high dose formulation on day 0 and day 28. | Biological: MV-CHIK liquid frozen formulation, high dose<br>* MV-CHIK, a live-attenuated recombinant measles vaccine expressing Chikungunya virus antigens, liquid frozen high dose (suspension for IM injection): 1x10^6 ±0.5 log TCID50/dose.<br>|
| Experimental: Group E: One MV-CHIK liquid frozen high dose/placebo<br>Participants received one vaccination with MV-CHIK liquid frozen high dose formulation on day 0 and placebo on day 28. | Biological: MV-CHIK liquid frozen formulation, high dose<br>* MV-CHIK, a live-attenuated recombinant measles vaccine expressing Chikungunya virus antigens, liquid frozen high dose (suspension for IM injection): 1x10^6 ±0.5 log TCID50/dose.<br>Other: Placebo<br>* Sterile physiological saline solution (0.9% sodium chloride [NaCl]), administered by IM injection.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Geometric Mean Titer of Anti-Chikungunya Antibodies as Measured by 50% Plaque Reduction Neutralization Test 28 Days After Last MV-CHIK Vaccination | Participant serum was collected for determination of antibody responses by 50% plaque reduction neutralization test (PRNT50). Geometric Mean Titer (GMT) of functional antibodies as measured by PRNT50 were assessed. Geometric mean titers and GMT ratios were estimated by applying an analysis of variance (ANOVA) including the factor treatment group. This was done using log10 transformed data and taking the anti-log of the resulting point estimates for the least squares means, least squares means differences and the corresponding 2 sided 95% confidence intervals (CI). P-values were also provided to compare GMTs between treatment groups adjusted for multiple comparisons according to Tukey Kramer. | 28 days after last vaccination (Up to Day 56) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Participants With Solicited and Unsolicited Adverse Events | An adverse event (AE) includes any untoward medical occurrence in a participant to whom an IMP has been administered, not necessarily caused by or related to that product. An AE can therefore be any unfavourable or unintended sign, abnormal laboratory finding, symptom or disease temporally associated with the use of an IMP whether or not considered related to the IMP. The percentage of participants with solicited and unsolicited AEs was assessed. | Up to Day 56 | 
| Percentage of Participants With at Least 1 Serious Adverse Event | A serious adverse event (SAE) is any untoward medical occurrence that results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, and consists of a congenital anomaly, birth defect or other important medical events. As per the protocol, adverse events were analyzed per treatment group but were not assessed with respect to individual vaccinations. | Up to Day 56 | 
| Geometric Mean Titer of Anti-Chikungunya Antibodies as Measured by PRNT50 | Participant serum was collected at each visit (Day 0, 28, 56, 182, and 365) for determination of antibody response by PRNT50. These results represent geometric mean titers (titers <10 were set to 5 for protocol-specified analysis). | Up to Day 365 | 
| Percentage of CD4+CD69+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity was determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of participants. | Up to Day 56 | 
| Percentage of CD4+CD69+CD137+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity was determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of participants. | Up to Day 56 | 
| Percentage of CD4+CD137+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity was determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of participants. | Up to Day 56 | 
| Percentage of CD4+CD69+OX40+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity was determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of participants. | Up to Day 56 | 
| Percentage of CD4+OX40+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity will be determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of subjects. | Up to Day 56 | 
| Percentage of CD8+CD69+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity was determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of participants. | Up to Day 56 | 
| Percentage of CD8+CD69+CD137+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity was determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of participants. | Up to Day 56 | 
| Percentage of CD8+CD137+ Chikungunya Virus Specific T-Cells | Cellular immunogenicity was determined by the evaluation of T cell immune response. Blood was collected for the isolation of peripheral blood mononuclear cells (PBMCs). PBMCs were isolated from whole blood to determine functional Interleukin 2 (IL-2)-producing T cells on day 0, 14, 28, 42, and 56 and in a subset of participants. | Up to Day 56 | 
| Geometric Mean Titer of Anti-Chikungunya Antibodies Determined by Enzyme Linked Immunosorbent Assay | Participant serum was collected at each visit (Day 0, 28, 56, 182, and 365) for determination of Chikungunya antibody response by enzyme linked immunosorbent assay (ELISA). The analysis of variance GMT of Chikungunya-ELISA antibodies between treatment groups is summarized. | Up to Day 365 | 
| Geometric Mean Titer of Anti-Measles Antibodies Determined by ELISA | Participant serum was collected at each visit (Day 0, 28, and 56) for determination of antibody responses by ELISA. | Up to Day 56 | 
| Number of Participants With Abnormal Laboratory Hematology Values Reported as an AE | An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study. Abnormal laboratory hematology value was any AE reported under the System Organ Class of Investigations that was related to an abnormal laboratory hematology value. | Up to Day 56 | 
| Number of Participants With Abnormal Laboratory Chemistry Values Reported as an AE | An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study. Abnormal laboratory chemistry value was any AE reported under the System Organ Class of Investigations that was related to an abnormal laboratory chemistry value. | Up to Day 56 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Chikungunya fever