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Availability of Varicella Vaccine for Children with Acute Lymphocytic Leukemia
An investigational, live, attenuated varicella vaccine is available free of charge through Merck Research Laboratories to any physician requesting it for certain pediatric patients (aged 12 months to 17 years) with acute lymphocytic leukemia (ALL). Patients must meet specified criteria, including no clinical history of varicella and continuous remission for at least 12 months.
Varicella vaccine is being provided to this group of patients for use through a study protocol to monitor and evaluate safety. An Investigational New Drug application for the vaccine has been filed with the Food and Drug Administration.
Previous experience with this vaccine has shown it to be immunogenic in children with ALL (1). The most common reaction to the vaccine is a mild (fewer than 100 lesions) varicelli-form rash, occurring in approximately 40% of vaccinees (2).
The physician must provide information outlined in the protocol, and the protocol and consent form for the study must be approved by the institution's Investigational Review Board. Additional information about eligibility criteria and vaccine administration is available from Dr. Jo White, Merck Research Laboratories, telephone (215) 834-2554.
Reported by: Div of Immunization, National Center for Prevention Svcs, CDC.
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