View clinical trials related to Herpes Zoster.
Filter by:This study will determine whether ZOSTAVAX™ made with an alternative manufacturing process [ZOSTAVAX™ (AMP)] is well tolerated and immunogenic, and has a comparable immune response to ZOSTAVAX™.
The purpose of this study is to determine if vaccination rate of eligible patients at a major urban public hospital will increase by having ophthalmologists screen patients for eligibility and a nurse administer the vaccine in the General Eye Clinic.
An open-label, multicenter study to evaluate the safety and immunogenicity of inactivated VZV vaccine (V212) in participants with hematologic malignancies (HM) who are currently receiving anti-CD20 monoclonal antibodies. The primary hypothesis is that vaccination with V212 vaccine will elicit significant VZV-specific immune responses at ~28 days after vaccination 4. The statistical criterion for significance requires that the lower bound of the 2-sided 90% confidence interval of the geometric mean fold rise in immune response in V212 recipients is >1.0.
PRIMARY OBJECTIVES Two co-primary objectives are: - To demonstrate that the immunogenicity of ZOSTAVAX administered by intramuscular route (IM) is non-inferior to ZOSTAVAX administered by subcutaneous route (SC) - To demonstrate that ZOSTAVAX administered by IM route induces an acceptable fold-rise of varicella zoster virus (VZV) antibody titre from pre to 4-week post-vaccination SECONDARY OBJECTIVES Immunogenicity objectives - To evaluate the immunogenicity as measured by VZV antibody titre at 4 weeks following ZOSTAVAX administered by IM or SC route - To evaluate the immune response as measured by a second assay, the VZV Interferon gamma Enzyme-linked immunospot (ELISPOT) at 4 weeks following ZOSTAVAX administered by IM or SC route Safety objective - To describe the safety profile of ZOSTAVAX administered by IM or SC route
This study will compare the safety and immunogenicity of ZOSTAVAX™ (V211) administered both intradermally and subcutaneously at various doses.
Vaccination is the most effective way of preventing infectious diseases. Despite the success of vaccines in general, vaccines induce diminished antibody responses and lower protection in the elderly in particular. This could be explained by a defect in the early responses of an ageing immune system. A better understanding of the basic immunological mechanisms that mediate vaccine efficacy is incomplete. Such information is critical and could greatly decrease both the cost and the time to new vaccine development particularly for the geriatric population. In this trial, the investigators will study the immunologic differences of the FDA approved licensed shingles vaccine between a younger and an older group. Thirty three healthy volunteers between the ages of 25-40 and forty four healthy volunteers between the ages of 60-79 will be enrolled in the study. Each participant in the study will be given one shingles shot. Blood work will be obtained one month before vaccination, on the day of vaccination, one day, three days, seven days, fourteen days, one month, three months and six months after vaccination. Throughout the duration of the study, the participants will be monitored for safety.
Herpes Zoster is an infection that affects part of the nervous system caused by Varicella Zoster Virus. Herpes Zoster manifests as vesicular eruption in the dermatome, often associated with significant pain. There are effective oral prescription antiviral medicines available to reduce the discomfort of symptoms as famciclovir and aciclovir. This is a phase III, multicenter, randomized, parallel-group study to compare the efficacy and safety of treatment with Famciclovir (500 mg) comparing to Aciclovir (400 mg) in patients with Herpes Zoster.
The subjects included in this study are subjects that participated in study NCT00434577. These subjects were vaccinated with the candidate Herpes Zoster (HZ) vaccine at Month 0 and Month 2 and were then followed at Month 12, Month 24 and Month 36 (study NCT00434577) for safety and immunogenicity. This long term follow up study (ZOSTER-024 [114825]) will evaluate immune responses to and safety of the previously administered candidate HZ vaccine at Months 48, 60 and 72. The study visits will be scheduled at approximately one year intervals after the first visit in ZOSTER-024. Blood samples for the evaluation of cellular and humoral immunity will be taken from all subjects at each visit. Information on safety and the occurrence of HZ will also be collected during these visits.
After immunization, particularly in older persons, some people are protected from disease by a vaccine and others are not. The investigators believe that this variable response may be due to overproduction of molecules that suppress development of immunity (antibodies and cell mediated immunity). Normally, these molecules are produced to make sure that immunity is regulated in just the right way for the body as a whole, and to prevent autoimmune disease. However, with aging, the immune system may have difficulty in proper immune regulation. Over production of immunosuppressive molecules after vaccination may interfere with the effects of a vaccine. For example when elderly individuals are immunized against zoster with a licensed vaccine, Zostavax, the vaccine is effective in only about 50 to 60%. The investigators will compare blood levels of antibodies, cellular immunity, and immunosuppressive molecules in recipients of Zostavax to see if there is a correlation between development low immunity and high levels of immunosuppressive molecules.
This is an ancillary study to a randomized controlled trial of high dose vitamin D in older long-term care residents (NCT01102374). In this study, a subset of trial subjects will receive the zoster vaccine and the investigators will determine the immunological response to the vaccine in this older, frail population, as well as the association between vitamin D and immunological outcomes.