Please select the eligibility criteria that correspond to the clinical trial below.
Title: Immunogenicity and Safety Study of Different Formulations of GSK Biologicals' Herpes Zoster Vaccine 1437173A When Administered Twice in Adults Aged 50 Years and Older
Brief Summary: The goal of this randomized observer-blind trial is to further refine the formulation of vaccines containing GSK1437173A in older adults by comparing the cellular and humoral immune responses and the safety profiles of the different formulations.


Options:
A: Inclusion Criteria:

* Subjects who the investigator believes will comply with the requirements of the protocol;
* Written informed consent obtained from the subject;
* A male or female aged 50 years or older at the time of the first vaccination;
* Female subjects of non-childbearing potential may be enrolled in the study;

For this study population, non-childbearing potential is defined as current tubal ligation, hysterectomy, ovariectomy or post-menopause.

OR Female subjects of childbearing potential may be enrolled in the study, if the subject has practiced adequate contraception for 30 days prior to vaccination, and has a negative urine pregnancy test on the day of vaccination, and has agreed to continue adequate contraception during the entire treatment period and for 2 months after completion of the vaccination series;

Exclusion Criteria:

* Use of any investigational or non-registered product other than the study vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period;
* Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product;
* Any confirmed or suspected immunosuppressive or immunodeficient condition resulting from disease or immunosuppressive/cytotoxic therapy;
* History of HZ;
* Previous vaccination against varicella or HZ;
* History of allergic disease or reactions likely to be exacerbated by any component of the vaccine. Additionally, consider allergic reactions to other material or equipment related to study participation;
* Significant underlying illness that in the opinion of the investigator would be expected to prevent completion of the study;
* Receipt of immunoglobulins and/or any blood products within the 90 days preceding the first dose of study vaccine or planned administration during the study period;
* Administration or planned administration of any other immunizations within 30 days before the first or second study vaccination or scheduled within 30 days after study vaccination. However, licensed non-replicating vaccines may be administered up to 8 days prior to each dose and/or at least 14 days after any dose of study vaccine;
* Any other condition that, in the opinion of the investigator, might interfere with the evaluations required by the study;
* Acute disease and/or fever at the time of enrollment;
* Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose.
* Pregnant or lactating female;
* Female planning to become pregnant or planning to discontinue contraceptive precautions.
B: Inclusion Criteria:

* A male or female 50 years of age or above at the time of the first vaccination;
* Written informed consent obtained from the subject;
* Subjects who the investigator believes that they can and will comply with the requirements of the protocol should be enrolled in the study;
* If the subject is female, she must be of non-childbearing potential, or if she is of childbearing potential, she must practice adequate contraception for 30 days prior to vaccination, have a negative pregnancy test and continue such precautions for 2 months after completion of the vaccination series.

Exclusion Criteria:

* 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 (defined as more than 14 consecutive days) of immunosuppressants or other immune-modifying drugs within three months prior to the first vaccine dose.
* Planned administration/ administration of a vaccine not foreseen by the study protocol within one month before the first study vaccination or scheduled within 30 days after study vaccination;
* Previous vaccination against HZ;
* Previous vaccination against varicella;
* History of HZ;
* History of allergic disease or reactions likely to be exacerbated by any component of the vaccine;
* Any confirmed or suspected immunosuppressive or immunodeficient condition resulting from disease or immunosuppressive/cytotoxic therapy;
* Administration of immunoglobulins and/or any blood products within the 3 months preceding the first injection of study vaccine or planned administration during the study period;
* Acute disease at the time of enrolment.
* Any other condition that, in the opinion of the investigator, might interfere with the evaluations required by the study;
* History of or current drug and/or alcohol abuse;
* Pregnant or lactating female;
* Female planning to become pregnant or planning to discontinue contraceptive precautions if of childbearing potential.
C: Inclusion Criteria:

1. Age ≥ 70 years
2. Varicella history-positive or residence for \> 30 years in a country with endemic VZV infection
3. Signed informed consent form prior to any study procedure

Exclusion Criteria:

1. Febrile illness within the last 72 hours before the first vaccination
2. Prior herpes-zoster episode clinically diagnosed by a physician
3. Prior receipt of varicella or zoster vaccine
4. Exposure to varicella or herpes-zoster within the 4 weeks prior to the first vaccination
5. Significant underlying illness preventing completion of the study vaccination schedules,
6. Known active tuberculosis,
7. Immune deficiency disorder, including active neoplastic disease within the prior 5 years,
8. Immune function impairment caused by medical condition or immunosuppressive therapy, or any other cause,
9. Receipt of any inactivated vaccine within the 2 weeks prior to the first vaccination,
10. Receipt of any other live vaccine within the 4 weeks prior to the first vaccination,
11. Receipt of immunoglobulins or blood-derived products within the 5 months prior to the first vaccination,
12. Concomitant use of non-topical antiviral therapy
D: Inclusion Criteria:

* Subjects who the investigator believes that they can and will comply with the requirements of the protocol should be enrolled in the study;
* Subjects who successfully completed the primary study and who did not receive Varilrix in the primary study;
* Written informed consent obtained from the subject;
* Free of obvious health problems as established by medical history and clinical examination before entering into the study.

Exclusion Criteria:

* Use of any investigational or non-registered product (drug or vaccine) within 1 month preceding the study start, or planned use during the study period;
* Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within three months prior to the first study procedure, including corticosteroids, except inhaled and topical steroids are allowed;
* Administration or planned administration of a vaccine not foreseen by the study protocol within 2 weeks before the first study procedure, with the exception of the Influenza vaccine, which can be administered 1 week preceding the first study procedure;
* Previous vaccination against HZ, except the study vaccine administered in the primary study;
* History of HZ (shingles);
* Any confirmed or suspected immunosuppressive or immunodeficient condition based on medical history and physical examination;
* Administration of immunoglobulins and/or any blood products within the 3 months preceding the first study procedure or planned administration during the study period.

Answer: B