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Author Topic: GlaxoSmithKline F4/AS01 Vaccine  (Read 535 times)

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Offline Jmarksto

  • Member
  • Posts: 469
GlaxoSmithKline F4/AS01 Vaccine
« on: June 17, 2014, 10:45:51 PM »
I don't believe this vaccine candidate has been discussed here, it looks like a somewhat promising early study:

http://tinyurl.com/moa7rf9

Abstract
The human immunodeficiency virus type-1 (HIV-1) vaccine candidate F4/AS01 has previously been shown to induce potent and persistent polyfunctional CD4+ T-cell responses in HIV-1-seronegative volunteers. This placebo-controlled study evaluated two doses of F4/AS01 1-month apart in antiretroviral treatment (ART)-experienced and ART-na´ve HIV-1-infected subjects (1:1 randomisation in each cohort). Safety, HIV-1-specific CD4+ and CD8+ T-cell responses, absolute CD4+ T-cell counts and HIV-1 viral load were monitored for 12 months post-vaccination. Reactogenicity was clinically acceptable and no vaccine-related serious adverse events were reported. The frequency of HIV-1-specific CD4+ T-cells 2 weeks post-dose 2 was significantly higher in the vaccine group than in the placebo group in both cohorts (p < 0.05). Vaccine-induced HIV-1-specific CD4+ T-cells exhibited a polyfunctional phenotype, expressing at least CD40L and IL-2. No increase in HIV-1-specific CD8+ T-cells or change in CD8+ T-cell activation marker expression profile was detected. Absolute CD4+ T-cell counts were variable over time in both cohorts. Viral load remained suppressed in ART-experienced subjects. In ART-na´ve subjects, a transient reduction in viral load from baseline was observed 2 weeks after the second F4/AS01 dose, which was concurrent with a higher frequency of HIV-1-specific CD4+ T-cells expressing at least IL-2 in this cohort. In conclusion, F4/AS01 showed a clinically acceptable reactogenicity and safety profile, and induced polyfunctional HIV-1-specific CD4+ T-cell responses in ART-experienced and ART-na´ve subjects. These findings support further clinical investigation of F4/AS01 as a potential HIV-1 vaccine for therapeutic use in individuals with HIV-1 infection.
03/15/12 Negative
06/15/12 Positive
07/11/12 CD4 790          VL 4,000
08/06/12 CD4 816/38%   VL 49,300
08/20/12 Started Complera
11/06/12 CD4   819/41% VL 38
02/11/13 CD4   935/41% VL UD
06/06/13 CD4   816/41% VL UD
10/28/13 CD4 1131/45%  VL 25
02/25/14 CD4   792/37%  VL UD
07/09/14 CD4 1004/39%   VL UD

 


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