Imperial College London


Faculty of MedicineDepartment of Infectious Disease

Chair in Mucosal Infection and Immunity



+44 (0)20 7594 5206r.shattock




453Wright Fleming WingSt Mary's Campus






BibTex format

author = {Nilsson, C and Hejdeman, B and Godoy-Ramirez, K and Tecleab, T and Scarlatti, G and Brove, A and Earl, PL and Stout, RR and Robb, ML and Shattock, RJ and Biberfeld, G and Sandstrom, E and Wahren, B},
doi = {10.1371/journal.pone.0131748},
journal = {PLOS One},
title = {HIV-DNA Given with or without Intradermal Electroporation Is Safe and Highly Immunogenic in Healthy Swedish HIV-1 DNA/MVA Vaccinees: A Phase I Randomized Trial},
url = {},
volume = {10},
year = {2015}

RIS format (EndNote, RefMan)

AB - BackgroundWe compared safety and immunogenicity of intradermal (ID) vaccination with and withoutelectroporation (EP) in a phase I randomized placebo-controlled trial of an HIV-DNA primeHIV-MVA boost vaccine in healthy Swedish volunteers.MethodsHIV-DNA plasmids encoding HIV-1 genes gp160 subtypes A, B and C; Rev B; Gag A and Band RTmut B were given ID at weeks 0, 6 and 12 in a dose of 0.6 mg. Twenty-five volunteersreceived vaccine using a needle-free device (ZetaJet) with (n=16) or without (n=9) IDEP (Dermavax). Five volunteers were placebo recipients. Boosting with recombinant MVACMDRexpressing HIV-1 Env, Gag, Pol of CRF01_AE (HIV-MVA) or placebo was performedat weeks 24 and 40. Nine of the vaccinees received a subtype C CN54 gp140 proteinboost together with HIV-MVA.ResultsThe ID/EP delivery was very well tolerated. After three HIV-DNA immunizations, no statisticallysignificant difference was seen in the IFN-γ ELISpot response rate to Gag between HIV-DNA ID/EP recipients (5/15, 33%) and HIV-DNA ID recipients (1/7, 14%, p=0.6158).The first HIV-MVA or HIV-MVA+gp140 vaccination increased the IFN-γ ELISpot responserate to 18/19 (95%). CD4+ and/or CD8+ T cell responses to Gag or Env were demonstrablein 94% of vaccinees. A balanced CD4+ and CD8+ T cell response was noted, with 78% and71% responders, respectively. IFN-γ and IL-2 dominated the CD4+ T cell response to Gagand Env. The CD8+ response to Gag was broader with expression of IFN-γ, IL-2, MIP-1βand/or CD107. No differences were seen between DNA vaccine groups. Binding antibodieswere induced after the second HIV-MVA+/-gp140 in 93% of vaccinees to subtype C Env,with the highest titers among EP/gp140 recipients.ConclusionIntradermal electroporation of HIV-DNA was well tolerated. Strong cell- and antibody-mediatedimmune responses were elicited by the HIV-DNA prime and HIV-MVA boosting regimen,with or without intradermal electroporation use.
AU - Nilsson,C
AU - Hejdeman,B
AU - Godoy-Ramirez,K
AU - Tecleab,T
AU - Scarlatti,G
AU - Brove,A
AU - Earl,PL
AU - Stout,RR
AU - Robb,ML
AU - Shattock,RJ
AU - Biberfeld,G
AU - Sandstrom,E
AU - Wahren,B
DO - 10.1371/journal.pone.0131748
PY - 2015///
SN - 1932-6203
TI - HIV-DNA Given with or without Intradermal Electroporation Is Safe and Highly Immunogenic in Healthy Swedish HIV-1 DNA/MVA Vaccinees: A Phase I Randomized Trial
T2 - PLOS One
UR -
UR -
VL - 10
ER -