PMID- 19857446 OWN - NLM STAT- MEDLINE DCOM- 20100303 LR - 20091204 IS - 1873-2518 (Electronic) IS - 0264-410X (Linking) VI - 28 IP - 2 DP - 2009 Dec 11 TI - Randomized, double-blind, Phase 1 trial of an alphavirus replicon vaccine for cytomegalovirus in CMV seronegative adult volunteers. PG - 484-93 LID - 10.1016/j.vaccine.2009.09.135 [doi] AB - Development of a cytomegalovirus (CMV) vaccine is a priority. We evaluated a two component alphavirus replicon particle vaccine expressing CMV gB or a pp65/IE1 fusion protein, previously shown to induce robust antibody and cellular immune responses in mice, in a randomized, double-blind Phase 1 clinical trial in CMV seronegative subjects. Forty subjects received a lower dose (LD) or higher dose (HD) of vaccine or placebo by intramuscular or subcutaneous injection at Weeks 0, 8 and 24. The vaccine was well tolerated, with mild to moderate local reactogenicity, minimal systemic reactogenicity, and no clinically important changes in laboratory parameters. All vaccine recipients developed ex vivo, direct IFN-gamma ELISPOT responses to CMV antigens (maximal mean spot-forming cells per 10(6) PBMC in LD and HD groups of 348 and 504 for pp65, 83 and 113 for IE1, and 138 and 114 for gB), and neutralizing antibodies (maximal geometric mean titer 110 with LD and 218 with HD). Polyfunctional CD4(+) and CD8(+) T cell responses were detected by polychromatic flow cytometry. This alphavirus replicon particle vaccine was safe and induced neutralizing antibody and multifunctional T cell responses against three CMV antigens that are important targets for protective immunity. FAU - Bernstein, David I AU - Bernstein DI AD - Division of Infectious Diseases, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH 44259, USA. David.Bernstein@cchmc.org FAU - Reap, Elizabeth A AU - Reap EA FAU - Katen, Kevin AU - Katen K FAU - Watson, Aubrey AU - Watson A FAU - Smith, Kaitlin AU - Smith K FAU - Norberg, Pamela AU - Norberg P FAU - Olmsted, Robert A AU - Olmsted RA FAU - Hoeper, Amy AU - Hoeper A FAU - Morris, John AU - Morris J FAU - Negri, Sarah AU - Negri S FAU - Maughan, Maureen F AU - Maughan MF FAU - Chulay, Jeffrey D AU - Chulay JD LA - eng PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20091024 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Antibodies, Neutralizing) RN - 0 (Antigens, Viral) RN - 0 (Cytomegalovirus Vaccines) SB - IM MH - Adolescent MH - Adult MH - Antibodies, Neutralizing/immunology MH - Antibody Formation/immunology MH - Antigens, Viral/immunology MH - Cytomegalovirus/*immunology MH - Cytomegalovirus Vaccines/administration & dosage/adverse effects/*immunology MH - Double-Blind Method MH - Flow Cytometry MH - Humans MH - Immunity, Cellular/immunology MH - Middle Aged MH - Models, Biological MH - T-Lymphocytes/immunology MH - Young Adult EDAT- 2009/10/28 06:00 MHDA- 2010/03/04 06:00 CRDT- 2009/10/28 06:00 PHST- 2009/07/16 00:00 [received] PHST- 2009/09/21 00:00 [revised] PHST- 2009/09/30 00:00 [accepted] PHST- 2009/10/28 06:00 [entrez] PHST- 2009/10/28 06:00 [pubmed] PHST- 2010/03/04 06:00 [medline] AID - S0264-410X(09)01495-9 [pii] AID - 10.1016/j.vaccine.2009.09.135 [doi] PST - ppublish SO - Vaccine. 2009 Dec 11;28(2):484-93. doi: 10.1016/j.vaccine.2009.09.135. Epub 2009 Oct 24.