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A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants Clinical Trials Information presented on Clinical Trials Search is not designed to be a substitute for certified medical advice, trips or professional assistance with a real medical doctor. We aren't docs. Always confer with your doctor about A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants conditions. Clinical Trials Search.org is a website committed to listing clinical research studies in human subjects. A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants Clinical research trials and A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants health trials happen in many of cities across the US. A clinical trial or clinical study is a research project with human volunteer subjects. Clinical drug trials and pharmaceutical clinical trials generally measure the effectualness of new does drugs. The intention of the studies / projects is to figure out particular human healthcare questions. Clinical trials are a popular manner for doctors, government agencies, and private sector corporations to detect cures for all forms of circumstances, like A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants. A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants Clinical Trials and other clinical trials allow for volunteers to undergo medical treatment options before they are available to the general public. Most times the subjects get treatment for free of charge, and occasionally they are paid for their time. Occasionally there is a cost for a A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants clinical trial. Subjects frequently get the best healthcare possible for their A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants condition. Hazards are a reality, however, and could include more or frequent mD visits, health risks (possibly life-jeopardizing), and/or the treatment being ineffectual. Trials are federally regulated with exacting guidelines to protect clinical trials patients.
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Home > "A" Clinical Trials Conditions > A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants  A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants
A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants
For Condition: Varicella Zoster,Chickenpox,Kidney Transplantation
Status: Completed
Sponsor(s): National Institute of Allergy and Infectious Diseases (NIAID) ,
Synopsis: The purpose of this study is to find out whether Varivax is safe for use in children with kidney transplants and whether it protects children from serious infection. Varivax is a vaccine against varicella zoster virus (VZV), the virus that causes chicken pox (varicella) and shingles (zoster). Healthy children are already receiving Varivax shots to protect them from chicken pox. Few children with kidney transplants have received Varivax because doctors have been concerned that Varivax might cause serious reactions in them. On the other hand, VZV infection can be a life-threatening disease in these children. For this reason, doctors want to learn whether Varivax might safely prevent VZV infections in children who have had kidney transplants.
Details: Pediatric renal transplant patients face a lifetime of immunosuppressive therapy that places them at high risk for potentially life-threatening infection by primary varicella-zoster virus (VZV). Treatment for acute episodes of VZV infection is possible but expensive and provides no long-term protection from VZV. Furthermore, therapy to overcome VZV infections can lead to renal graft rejection. Varivax has proven safe, immunogenic, and effective in the normal host and has been recommended for universal administration in the general population at age 12 months. It is not currently labeled for use in immunocompromised patients. However, recent studies in pediatric leukemia and pediatric renal transplant patients suggest that attenuated live vaccine can confer protection with minimal adverse events even in the presence of immunosuppression, providing encouragement for more careful studies of VZV immunization in renal transplant patients. This study endeavors to quantify the immunogenicity and safety of Varivax in the population of pediatric renal transplant patients least susceptible to VZV infection, i.e., those on minimal maintenance immunosuppression and at least 1 year from transplant. Patient enrollment is staged to allow study physicians to closely monitor patients for signs of disseminated varicella reactions or graft rejection. Initially only 1 patient will be enrolled in the study. If the first patient reaches Week 8 without a severe adverse reaction, 3 study centers will then enroll 3 additional patients. If 8 weeks later these 3 patients have had no severe adverse reactions, the same 3 study centers will enroll 3 more patients. At the end of this period, having ascertained the safety of the vaccine in the first 7 patients, the study will be opened to the remaining centers. Patients receive 2 doses of Varivax 6 to 8 weeks apart. Each week for 6 to 8 weeks after the first vaccine dose, the patient undergoes venipuncture and clinical assessment to characterize renal graft and liver function and identify any signs of varicella infection. Additional telephone follow-up occurs on Day 4 and twice weekly thereafter. Parents or guardians monitor the patient for evidence of rash or fever and immediately report any rashes or fevers to study physicians. If, after 6 to 8 weeks, the patient demonstrates no severe reactions to the vaccine and requires no antiviral therapy, the patient receives the second vaccine dose. The patient again receives weekly on-site and telephone follow-up for 6 weeks. Other visits occur 9 weeks and 14 weeks after the second vaccine dose and 1 year after the first vaccine dose. At these visits the patient undergoes venipuncture and clinical assessment to identify potential rejection events or varicella infection and to characterize VZV antibody responses and cytokine changes in response to the vaccine.
Eligibility:
Study Type: Interventional, Prevention
Minimum Age/Maximum Age: 2 Years/21 Years
Genders: Both
Protocol Entry Criteria: Inclusion Criteria Your child may be eligible for this trial if he/she: - Had a kidney transplant 1 year ago or more. - Is between ages 2 and 21 (parent or guardian's signed informed consent required if under 18). - Is taking stable, maintenance doses of immunosuppressive drugs for his/her kidney transplant. - Is generally in good health. Exclusion Criteria Your child will not be eligible for this trial if he/she: - Has had any rejection episodes in the last 6 months or has other problems with his/her kidneys. - Was in the hospital for a major infection in the last 30 days. - Has a history of VZV infection, including chicken pox or shingles. - Has ever received a VZV vaccine, including Varivax. - Lives with a person whose immune system does not work well. - Is allergic to certain medications. - Is unable to return for the prescribed follow-up check-ups. - Has no phone or beeper. - Has had blood or plasma transfusions or taken certain drugs in the last 6 months.
Total Enrollment: 50
Location and Contact Information:
Ann Limberger
Rockville, Maryland, 20850
United States
Additional Information:
Study ID Numbers: DAIT VZV;
Study Start Date:
Record last reviewed: September 2003
Additional information available at: clinicaltrials.gov
Clinicaltrials.gov Reference link: NCT00005009
Other Chickenpox Studies:
1. A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants
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A Study of the Safety and Effectiveness of Varivax (the Chicken Pox Vaccine) in Children Who Have Received Kidney Transplants
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