PMID- 23840618 OWN - NLM STAT- MEDLINE DCOM- 20140121 LR - 20240222 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 8 IP - 6 DP - 2013 TI - Two doses of candidate TB vaccine MVA85A in antiretroviral therapy (ART) naive subjects gives comparable immunogenicity to one dose in ART+ subjects. PG - e67177 LID - 10.1371/journal.pone.0067177 [doi] LID - e67177 AB - Tuberculosis (TB) is a global public health problem exacerbated by the HIV epidemic. Here we evaluate a candidate TB vaccine, MVA85A, in a Phase I study in HIV-infected adults in Senegal. 24 patients were enrolled: Group 1ratio12, antiretroviral therapy (ART) naive, adults, with CD4 counts >300 and HIV RNA load <100,000 copies/ml. Group 2ratio12 adults, stable on ART, with CD4 counts >300, and an undetectable HIV RNA load. Safety was evaluated by occurrence of local and systemic adverse events (AEs) and by monitoring of CD4 count, HIV RNA load, haematology and biochemistry. Immunogenicity was evaluated by ex-vivo interferon-gamma ELISpot assay. 87.7% of AEs were mild; 11.6% were moderate; and 0.7% were severe. 29.2% of AEs were systemic; 70.8% were expected local AEs. There were no vaccine-related Serious Adverse Events (SAEs) or clinically significant effects on HIV RNA load or CD4 count. In ART naive subjects, the first MVA85A immunisation induced a significant immune response at 1 and 4 weeks post-immunisation, which contracted to baseline by 12 weeks. Durability of immunogenicity in subjects on ART persisted out to 24 weeks post-vaccination. A second dose of MVA85A at 12 months enhanced immunogenicity in ART naive subjects. Subjects on ART had higher responses after the first vaccination compared with ART naive subjects; responses were comparable after 2 immunisations. In conclusion, MVA85A is well-tolerated and immunogenic in HIV-infected subjects in Senegal. A two dose regimen in ART naive subjects is comparable in immunogenicity to a single dose in subjects on ART. Clinicaltrials.gov trial identifier NCT00731471. FAU - Dieye, Tandakha N AU - Dieye TN AD - Laboratoire de Bacteriolgie-Virologie, Centre Hospitalier Universitaire Le Dantec, Dakar, Senegal. FAU - Ndiaye, Birahim P AU - Ndiaye BP FAU - Dieng, Alle B AU - Dieng AB FAU - Fall, Marema AU - Fall M FAU - Brittain, Nathaniel AU - Brittain N FAU - Vermaak, Samantha AU - Vermaak S FAU - Camara, Makhtar AU - Camara M FAU - Diop-Ndiaye, Halimatou AU - Diop-Ndiaye H FAU - Ngom-Gueye, Ndeye Fatou AU - Ngom-Gueye NF FAU - Diaw, Papa A AU - Diaw PA FAU - Toure-Kane, Coumba AU - Toure-Kane C FAU - Sow, Papa S AU - Sow PS FAU - Mboup, Souleymane AU - Mboup S FAU - McShane, Helen AU - McShane H LA - eng SI - ClinicalTrials.gov/NCT00731471 GR - Wellcome Trust/United Kingdom GR - 095780/Wellcome Trust/United Kingdom GR - 076943/Z/05/Z/WT_/Wellcome Trust/United Kingdom PT - Clinical Trial, Phase I PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130628 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Anti-HIV Agents) RN - 0 (Tuberculosis Vaccines) RN - 82115-62-6 (Interferon-gamma) SB - IM EIN - PLoS One. 2013;8(10). doi:10.1371/annotation/67550546-cacf-4063-8d62-d165da14ca61. Britain, Nathaniel [corrected to Brittain, Nathaniel] MH - Adult MH - Anti-HIV Agents/*therapeutic use MH - CD4 Lymphocyte Count MH - CD4-Positive T-Lymphocytes/immunology/metabolism MH - Cells, Cultured MH - Drug Therapy, Combination MH - Female MH - HIV Infections/drug therapy/*immunology MH - HIV-1/*immunology MH - Humans MH - Immunization, Secondary MH - Immunocompromised Host MH - Interferon-gamma/metabolism MH - Male MH - Middle Aged MH - Tuberculosis Vaccines/administration & dosage/*immunology MH - Tuberculosis, Pulmonary/immunology/*prevention & control MH - Young Adult PMC - PMC3696007 COIS- Competing Interests: HMcS is an inventor on a patent for MVA85A and is a shareholder in a Joint Venture, the Oxford Emergent Tuberculosis Consortium, formed for the development of MVA85A. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials. EDAT- 2013/07/11 06:00 MHDA- 2014/01/22 06:00 PMCR- 2013/06/28 CRDT- 2013/07/11 06:00 PHST- 2013/02/27 00:00 [received] PHST- 2013/05/15 00:00 [accepted] PHST- 2013/07/11 06:00 [entrez] PHST- 2013/07/11 06:00 [pubmed] PHST- 2014/01/22 06:00 [medline] PHST- 2013/06/28 00:00 [pmc-release] AID - PONE-D-13-10398 [pii] AID - 10.1371/journal.pone.0067177 [doi] PST - epublish SO - PLoS One. 2013 Jun 28;8(6):e67177. doi: 10.1371/journal.pone.0067177. Print 2013.