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VaricellaPhase 2NCT00568334

Study of Two Formulations of GSK Biologicals' Varicella Vaccine

A Phase 2 study testing Varilrix (inactivated varicella vaccine) in people with Varicella, run by GlaxoSmithKline at 13 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is to evaluate a modified formulation of GSK Biologicals' live attenuated varicella vaccine. In vivo pre-clinical data show this change has no negative impact on vaccine safety. Read more about this study

Who is it for?
Ages 11 to 21 monthsHealthy volunteers can take part
Conditions the study is for
Varicella
What is being tested?
Varilrix (inactivated varicella vaccine)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
244 participants
Where
13 sitesin 2 countries
Study dates
1 Nov 2007to 29 Apr 2008
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 11 to 21 months
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Subjects who the investigator believes that their parents/guardians can and will comply with the requirements of the protocol (e.g. completion of the diary cards, return for follow-up visits) should be enrolled in the study.
  • A male or female between, and including, 11 and 21 months of age at the time of the first vaccination.
  • Written informed consent obtained from the parent or guardian of the subject.
  • Healthy subjects as established by medical history and clinical examination before entering into the study.

Who cannot join

  • Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
  • Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose.
  • Planned administration/ administration of a vaccine not foreseen by the study protocol within 30 days prior to the first study vaccine dose until 42 days after second study vaccine dose with the exception of oral polio vaccine (OPV) which can be given at any time and routine inactivated vaccines which can be administered up to eight days before each study vaccine dose.
  • Previous vaccination against varicella.
  • Known history of clinical varicella.
  • Known exposure to varicella within 30 days prior to study start.
Show all 13Show fewer
  • Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.
  • A family history of congenital or hereditary immunodeficiency.
  • History of allergic disease or reactions likely to be exacerbated by any component of the vaccine(s), including systemic hypersensitivity to neomycin.
  • Major congenital defects or serious chronic illness.
  • Acute disease at the time of enrolment. All vaccines can be administered to persons with a minor illness.
  • Axillary temperature ≥ 37.5°C / Rectal temperature ≥ 38°C.
  • Residence in the same household as a high risk person e.g.: new-born infants (0-4 weeks of age), pregnant women who have a negative history of chickenpox, persons with known immunodeficiency

Trial locations and contacts

13 sites in 2 countries.

13 sites in 2 countries

Hungary11 sites
  • GSK Investigational Site

    Bordány, 6795

  • GSK Investigational Site

    Budapest, 1032

  • GSK Investigational Site

    Budapest, 1040

  • GSK Investigational Site

    Budapest, 1097

  • GSK Investigational Site

    Budapest, 1121

  • GSK Investigational Site

    Győr, 9024

  • GSK Investigational Site

    Miskolc, 3524

  • GSK Investigational Site

    Miskolc, 3528

  • GSK Investigational Site

    Miskolc, 3543

  • GSK Investigational Site

    Szeged, 6723

  • GSK Investigational Site

    Zsombó, 6792

Other trials in Hungary

Czechia2 sites
  • GSK Investigational Site

    Náchod, 547 01

  • GSK Investigational Site

    Pardubice, 532 03

Other trials in Czechia

About this study

Official title: Study of Two Formulations of GSK Biologicals' Varicella Vaccine Given as a 2-dose Course in the Second Year of Life

The aim of this study is to evaluate a modified formulation of GSK Biologicals' live attenuated varicella vaccine. In vivo pre-clinical data show this change has no negative impact on vaccine safety. This present study is undertaken to rule out any negative impact on the immunogenicity and safety of GSK Biologicals' live attenuated varicella virus vaccine.

Conditions
Varicella
Being tested
Varilrix (inactivated varicella vaccine)
Keywords
chickenpox, varicella, two-dose schedule, second year of life
Medical subject headings
Chickenpox

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Varilrix (inactivated varicella vaccine)Biological

    subcutaneously injection

Study groups in NCT00568334
Study groupRoleWhat they receive
VARILRIX HSA-FREE GROUPExperimentalHealthy male or female children between, and including, 11 and 21 months of age, who received 2 doses of Varilrix™ vaccine produced without human serum albumin (HSA-Free), administered subcutaneously into the deltoid region of the left upper arm, at Day 0 and Day 43-57 (Week 6).
Receives: Biological: Varilrix (inactivated varicella vaccine)
VARILRIX GROUPExperimentalHealthy male or female children between, and including, 11 and 21 months of age, who received 2 doses of Varilrix™ vaccine, administered subcutaneously into the deltoid region of the left upper arm, at Day 0 and Day 43-57 (Week 6).
Receives: Biological: Varilrix (inactivated varicella vaccine)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Antibody Titers Against Varicella Zoster Virus (VZV)

    Antibody titers have been assessed by immunofluorescence assay (IFA) and presented as geometric mean titers (GMTs), for initially seronegative subjects [with anti-VZV titer below (<) 1:4].

    Measured: At 43-57 days after the first vaccine dose (Week 6)

  2. Antibody Concentrations Against Varicella Zoster Virus (VZV)

    Antibody concentrations have been assessed by enzyme-linked immunosorbent assay (ELISA), presented as geometric mean concentrations (GMCs) and expressed in milli-international units per milliliter (mIU/mL), for initially seronegative subjects [with anti-VZV concentration below (<) 25 mIU/mL].

    Measured: At 43-57 days after the first vaccine dose (Week 6)

Secondary outcomes (8)
  1. Number of Seroconverted Subjects for Varicella Antibodies

    Seroconversion/seroresponse (considering the IFA data) was defined as the appearance of anti-VZV antibodies [i.e. titer/concentration greater than or equal to (≥) the assay cut-off value of 1:4] in the sera of subjects who were seronegative before vaccination.

    Measured: At 43-57 days post-Dose 1 (Week 6) and 86-114 days post-Dose 2 (Week 12)

  2. Number of Subjects With Anti-VZV Antibody Concentrations Above Cut-off Values

    Anti-VZV antibody concentrations greater than or equal to (≥) the assay cut-off values of: 25 mIU/mL, 50 mIU/mL and 75 mIU/mL have been assesssed by ELISA, in the sera of subjects who were seronegative before vaccination.

    Measured: At 43-57 days post-Dose 1 (Week 6) and 86-114 days post-Dose 2 (Week 12)

  3. Antibody Titers Against Varicella Zoster Virus (VZV)

    Antibody titers have been assessed by immunofluorescence assay (IFA) and presented as geometric mean titers (GMTs), for initially seronegative subjects [with anti-VZV titer below (<) 1:4].

    Measured: At 86-114 days after the second vaccine dose (Week 12)

  4. Antibody Concentrations Against Varicella Zoster Virus (VZV)

    Antibody concentrations have been assessed by enzyme-linked immunosorbent assay (ELISA), presented as geometric mean concentrations (GMCs) and expressed in milli-international units per milliliter (mIU/mL), for initially seronegative subjects [with anti-VZV concentration below (<) 25 mIU/mL].

    Measured: At 86-114 days after the second vaccine dose (Week 12)

  5. Number of Subjects With Any and Grade 3 Solicited Local Symptoms

    Assessed solicited local symptoms were pain, redness and swelling. Any = incidence of a particular symptom regardless of intensity grade. Grade 3 pain = cried when limb was moved/spontaneously painful. Grade 3 redness/swelling = redness/swelling spreading beyond 20 millimeters (mm) of injection site.

    Measured: During the 4-day (Days 0-3) post-vaccination period following each dose

  6. Number of Subjects With Any, Grade 3 and Related Solicited General Symptoms

    Assessed solicited general symptoms were fever [defined as axillary fever ≥ 37.5 degrees Celsius (°C)] and generalized rash. Any = occurrence of the symptom regardless of intensity grade or relationship to vaccination. Grade 3 fever = temperature above (>) 39.0°C after vaccination. Grade 3 rash = more than (>) 150 lesions. Related = considered by the investigator to be causally related to the study vaccination.

    Measured: During the 43-day (Days 0-42) post-vaccination period following each dose

  7. Number of Subjects With Any Unsolicited Adverse Event (AE)

    An unsolicited AE covers any untoward medical occurrence in a clinical investigation subject temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Any was defined as an adverse event (AE) reported in addition to those solicited during the clinical study. Any solicited symptom with onset outside the specified period of follow-up for solicited symptoms was reported as an unsolicited adverse event.

    Measured: Within the 43-day (Days 0-42) post-vaccination period following each dose

  8. Number of Subjects With Serious Adverse Events (SAEs)

    Serious adverse events (SAEs) assessed include medical occurrences that results in death, are life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity or is a congenital anomaly/birth defect in the offspring of a study subject.

    Measured: From Day 0 up to study end (Day 86-114)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Dec 2007 (estimated)
  2. Study start1 Nov 2007
  3. Primary completion18 Mar 2008
  4. Study completion29 Apr 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
244 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00568334
Sponsor's protocol ID
109705
Status last verified
Apr 2017
First submitted
5 Dec 2007
Last updated
8 Jun 2018
Data monitoring committee
No
Individual data sharing
Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Publications

  • Prymula R, Simko R, Povey M, Kulcsar A. Varicella vaccine without human serum albumin versus licensed varicella vaccine in children during the second year of life: a randomized, double-blind, non-inferiority trial. BMC Pediatr. 2016 Jan 13;16:7. doi: 10.1186/s12887-016-0546-5.

    PubMed 26762528

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Varilrix (inactivated varicella vaccine) in people with Varicella, run by GlaxoSmithKline at 13 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jun 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in Hungary, Czechia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Jun 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Antibody Titers Against Varicella Zoster Virus (VZV) (time frame: At 43-57 days after the first vaccine dose (Week 6)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00568334, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2018.

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