Training Study to Characterize Biomarkers to Chickenpox and Yellow Fever Vaccines

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01765413
Recruitment Status : Completed
First Posted : January 10, 2013
Last Update Posted : February 16, 2015
Innovative Medicines Initiative
Sanofi Pasteur, a Sanofi Company
Information provided by (Responsible Party):
University of Surrey

Brief Summary:

It is thought that vaccines trigger innate inflammatory responses to induce antigenspecific adaptive immunity (the desired effect), but excessive inflammation may lead to serious inflammatory complications or unwanted side effects. Currently there is a lack of reliable biomarkers (a measurable biological response that predicts something) able to predict severe inflammation and this has resulted in the development of several vaccines being terminated and the withdrawal of some licensed vaccines which were associated with inflammatory complications.

This study is part of the BIOVACSAFE project which is a 5year €30M project funded by the Innovative Medicine Initiative. The project involves a series of clinical studies using licensed vaccines as benchmarks to generate clinical data on inflammation and identify biomarkers that can be used to predict acceptable reactogenicity. The target is to identify biomarkers that can predict the occurrence of beneficial and detrimental effects in response to a vaccine. Such biomarkers could be used in future vaccine development programs to optimize selection of vaccine candidates with a profile that will be unlikely to generate worrisome safety signals once they are in generalized use.

This study is one in a series of "training" studies which will each use different licensed vaccines that are prototypical representatives of a class of vaccine used in a particular target population. Forty eight subjects will be randomised into three groups to receive: A) Varicella zoster vaccine (n = 20), B) Yellow Fever vaccine (n = 20), C) Saline placebo (n = 8). Following a screening visit, participants will undergo a seven day residential visit which will include immunization and intensive monitoring of physiological (e.g. heart rate, oral temperature, blood pressure) metabolic and immune (innate and adaptive) parameters. This visit will be followed up by four outpatient visits with further monitoring and blood samples.

Condition or disease Intervention/treatment Phase
Healthy Biological: Varicella-zoster virus Biological: Yellow Fever Vaccine Biological: Placebo Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 48 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)
Primary Purpose: Basic Science
Official Title: A Clinical Study to Generate an Exploratory Training Set of Data Characterising Clinical Events, Physiological and Metabolic Responses, and Innate and Adaptive Immune Responses Following a Single Subcutaneous Immunisation With Either "Varilrix" Varicella-zoster Vaccine, "Stamaril" Yellow Fever Vaccine or Saline Placebo in Healthy Adults With Evidence of Pre-existing Immunity to Varicella-zoster and no Existing Immunity to Yellow Fever.
Study Start Date : September 2013
Actual Primary Completion Date : January 2014
Actual Study Completion Date : January 2014

Arm Intervention/treatment
Experimental: Varilrix
Participants receive one dose of 'Varilrix' varicella-zoster vaccine.
Biological: Varicella-zoster virus
Other Name: Varilrix

Experimental: Stamaril
Participants receive one dose of 'Stamaril' yellow fever vaccine.
Biological: Yellow Fever Vaccine
Other Name: Stamaril

Placebo Comparator: Placebo
Participants receive one injection of placebo.
Biological: Placebo

Primary Outcome Measures :
  1. Change from baseline values of global gene expression in whole blood. [ Time Frame: Visits 1 (Day -28 to -2), 2 (Day -1 to +5) , 3 (Day 7), 4 Day 14), 5 (Day 21) and 6 (Day 28). ]

Other Outcome Measures:
  1. Proportion of subjects experiencing vaccine-related clinical events following administration of first dose of vaccine. [ Time Frame: Visits 2 (Day -1 to +5) , 3 (Day 7), 4 Day 14), 5 (Day 21) and 6 (Day 28). ]
  2. Change from baseline values of copy number of yellow fever virus in plasma. [ Time Frame: Visits 2 (Day -1 to +5) , 3 (Day 7), 4 Day 14), 5 (Day 21) and 6 (Day 28). ]
  3. Change from baseline values in concentration of serum anti-yellow fever antibodies. [ Time Frame: Visits 1 (Day -28 to -2), 2 (Day -1 to +5) , 3 (Day 7), 4 Day 14), 5 (Day 21) and 6 (Day 28). ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  1. Healthy male or female subjects aged 18-45years inclusive.
  2. The subject is, in the opinion of the investigator, healthy on the basis of medical history, vital signs, & the results of routine laboratory tests with no active disease process that could interfere with the study endpoints.
  3. Body Mass Index ≥18.5 and <29.5
  4. The subject is able to read & understand the ICF, & understand study procedures.
  5. The subject has signed the ICF.
  6. Subjects must fulfill the immune status eligibility only for the group they are allocated to::

    1. To be eligible for the Varilrix group the subject must be immune to varicella zoster confirmed on screening by a varicella zoster serum antibody titre by ELISA test (cut-off: 25 mIU/mL)
    2. To be eligible for the Stamaril group the subject must be seronegative to flaviviruses as confirmed by ELISA test with a predetermined cut-off
  7. Available for followup for the duration of the study.
  8. Agree to abstain from donating blood during & for three months after the end of their participation in the study, or longer if necessary.
  9. If heterosexually active female, willing to use an effective method of contraception with partner from 30 days prior to, & 3 months after, vaccination. Willing to undergo urine pregnancy tests prior to vaccination & blood pregnancy test at screening & final follow up.
  10. The subject has venous access sufficient to allow blood sampling as per protocol.

Exclusion Criteria:

  1. Significant dietary restrictions (e.g. vegan, lactose intolerant, but vegetarian acceptable) or life threatening food allergies (e.g. anaphylaxis related nut allergies).
  2. Pregnant or lactating at any point during the study from screening to final follow up.
  3. Subjects must fulfill the vaccine contraindications eligibility only for the group they are allocated to:

    a.For group A (Varilrix) - i.History of hypersensitivity to neomycin (other than contact dermatitis), any of the excipients in the vaccine (amino acids, human albumin, lactose, mannitol, sorbitol) or to any other varicella vaccine.

    ii.Known hypersensitivity to a first dose of Varilrix.

    b.For group B (Stamaril) - i.Previous receipt of a yellow fever vaccine ii.History of hypersensitivity to eggs, chicken proteins or any component of Stamaril (Lactose, Sorbitol E420, L-histidine hydrochloride, L-alanine, Sodium chloride, Potassium chloride, Disodium phosphate, Monopotassium phosphate, Calcium chloride, Magnesium sulphate)

  4. Presence of primary or acquired immunodeficiency states with a total lymphocyte count less than 1,200 per mm3 or presenting other evidence of lack of cellular immune competence e.g. leukaemias, lymphomas, blood dyscrasias, or patients receiving immunosuppressive therapy (including regular use of oral, inhaled, topical or parenteral corticosteroids).
  5. Use of any immune suppressing or immunomodulating drugs within 6 months of Visit 1
  6. Regular use of nonsteroidal anti-inflammatory drugs (by any route of administration including topical) within 6 months of Visit 1 (screening) considered by the study physician as likely to interfere with immune responses.
  7. Receipt of a vaccine within 30 days of visit 2, or requirement to receive another vaccine within the study period.
  8. Presence of an acute severe febrile illness at time of immunization.
  9. History of alcohol, narcotic, benzodiazepine, or other substance abuse or dependence within the 12 months preceding Visit 1.
  10. Currently participating in another clinical study with an investigational or non-investigational drug or device, or has participated in a clinical trial within the 3 months preceding Visit 1.
  11. Any condition that, in the investigator's opinion, compromises the subject's ability to meet protocol requirements or to complete the study.
  12. Receipt of blood products or immunoglobin, or blood donation, within 3 months of screening.
  13. Unable to read & speak English to a fluency level adequate for the full comprehension of procedures required in participation & consent.
  14. An average weekly alcohol intake that exceeds 14 or 21 units per week for females and males, respectively, or unwilling to stop alcohol consumption for each treatment period during the study.
  15. Currently smokes in excess of 5 cigarettes/day or equivalent use of tobacco (within the last 6 months of screening), or subjects unwilling to refrain from smoking or are unable to abide by Surrey CRC restrictions.
  16. Consumes excessive amounts, defined as greater than 4 servings of coffee, tea, cola, or other caffeinated beverages/food per day.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01765413

United Kingdom
University of Surrey, (Surrey Clinical Research Centre)
Guildford, Surrey, United Kingdom, GU2 7XP
Sponsors and Collaborators
University of Surrey
Innovative Medicines Initiative
Sanofi Pasteur, a Sanofi Company
Principal Investigator: David J Lewis University of Surrey

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: University of Surrey Identifier: NCT01765413     History of Changes
Other Study ID Numbers: CRC305A
First Posted: January 10, 2013    Key Record Dates
Last Update Posted: February 16, 2015
Last Verified: September 2013

Keywords provided by University of Surrey:
To identify
of vaccine safety

Additional relevant MeSH terms:
Yellow Fever
Arbovirus Infections
Virus Diseases
Flavivirus Infections
Flaviviridae Infections
RNA Virus Infections
Hemorrhagic Fevers, Viral
Immunologic Factors
Physiological Effects of Drugs