Title

Clinical and immunologic responses to multiple doses of IMVAMUNE (Modified Vaccinia Ankara) followed by Dryvax challenge

UMMS Affiliation

Department of Medicine, Division of Infectious Diseases and Immunology; Center for Infectious Disease and Vaccine Research

Publication Date

12-12-2007

Document Type

Article

Disciplines

Immunity | Immunology and Infectious Disease | Immunology of Infectious Disease | Infectious Disease

Abstract

Smallpox vaccination with replication deficient vaccinia strains such as Modified Vaccinia Ankara (MVA) may induce protective immunity with improved safety and tolerability profiles compared with currently available smallpox vaccines. Ninety subjects were randomized equally to six groups in a partially blinded, randomized, controlled clinical trial. IMVAMUNE (MVA-BN, Bavarian Nordic A/S, Kvistgard, Denmark) vaccine or placebo was administered at Study Days 0 and 28 by subcutaneous or intramuscular injection and five groups were challenged with Dryvax at study Day 112. Vaccination with two doses of IMVAMUNE was safe and well tolerated compared to Dryvax. IMVAMUNE produced comparable cellular and humoral immune responses to one dose of Dryvax and the immunity induced appears robust 90 days post-vaccination by evidence of attenuated primary cutaneous reaction responses following Dryvax. IMVAMUNE vaccination prior to Dryvax reduced virus replication at the Dryvax site, decreased the size of the primary cutaneous lesion, and decreased the time to healing but did not completely ameliorate the immune response.

Rights and Permissions

Citation: Vaccine. 2007 Dec 12;25(51):8562-73. Epub 2007 Oct 26. DOI: 10.1016/j.vaccine.2007.10.017 Link to article on publisher's site

Journal/Book/Conference Title

Vaccine

Related Resources

Link to Article in PubMed

PubMed ID

18036708