Vacc-4x (Bionor), vaccino TERAPEUTICO: dati sulla fase IIB
Inviato: mercoledì 14 settembre 2011, 9:20
Questa è la continuazione del thread Vacc-4x della Bionor Pharma.
Per i moltissimi dubbi relativi a questo vaccino, per favore fate riferimento alla discussione citata.
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Dall'AIDS Vaccine 2011 di Bangkok arrivano i dati della sperimentazione di fase IIB del vaccino terapeutico Vacc-4x di Bionor Pharma.
Pare che questo candidato vaccino abbia mostrato un ottimo profilo di sicurezza e abbia comportato una significativa diminuzione della viremia nei pazienti HIV+ che hanno sospeso la HAART dopo somministrazione del vaccino.
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Results From Phase IIB Placebo Controlled Study of Bionor Pharma's Vacc-4x Show Excellent Safety Profile, Statistically Significant Viral Load Reduction in Patients With HIV Who Suspend Antiretroviral Therapy
Vaccine for People Living With HIV/AIDS Reduces Viral Load, Works by Training Patients' Immune System to Target the Known "Achilles Heel" of HIV; Could Lead to New Approach for Treating HIV and Reducing Transmission of Virus
BANGKOK, THAILAND, Sep 14, 2011 (MARKETWIRE via COMTEX) -- Results from the furthest advanced study of a therapeutic vaccine candidate to treat people living with HIV/AIDS were announced at a news conference held by the Global HIV Vaccine Enterprise, hosts of AIDS Vaccine 2011 today in Bangkok.
The vaccine, developed by Bionor Pharma (oslo:BIONOR), is designed to target immune responses to conserved domains of p24 since sustained immune responses to p24 have been proven to be associated with delayed disease progression.
The results were announced by Professor Jan van Lunzen, Medical Director of the Infectious Diseases Unit at the University Medical Centre Hamburg-Eppendorf, Germany and an investigator on the placebo controlled, multi-national, multi-center Vacc-4x trial.
Among the key findings reported at the news conference:
-- Significant viral load reduction compared to pre-treatment levels. Patients on Vacc-4x experienced viral reduction of 70% (more than half a log) compared to their viral load levels before initiating ART. This reduction was not seen in the patients receiving placebo.
-- Confirmation that HIV can be targeted at its "Achilles heel," the known conserved domain p24. The viral load of immune response (ELISPOT) positive Vacc-4x subjects was significantly lower than that of ELISPOT positive subjects in the placebo group (p=0.023) indicating that Vacc-4x immunization may improve immune responses to p24 leading to a lower viral load levels, or set point. From this researchers conclude that Vacc-4x appears to refine a patient's immune system to create a better response to p24.
-- Improved viral load "set point". A statistically significant treatment difference in plasma viral load set point between the Vacc-4x and placebo groups in subjects after 28 weeks of ART.
-- Vacc-4x extended the time period patients could stay off ART. Subjects receiving the vaccine were almost twice as likely to remain off ART for more than one year compared to the placebo group (30% versus 18%). This is in agreement with the follow-up data from the phase IIa study from Ulleval University Hospital between 2003 and 2006 that showed patients vaccinated with Vacc-4x could stay off ART for on average 31 months.
-- Vacc-4x potential to prevent transmission of HIV. Because Vacc-4x can significantly lower viral load, and because researchers know that communities with lower viral load transmit the disease less successfully, the vaccine may be a candidate to slow the spread of HIV transmission -a finding that could have major implications for the developing world where a vaccine would be easier to administer and less expensive than current options.
Molte altre informazioni qui: marketwatch.com
Per i moltissimi dubbi relativi a questo vaccino, per favore fate riferimento alla discussione citata.
************************************************
Dall'AIDS Vaccine 2011 di Bangkok arrivano i dati della sperimentazione di fase IIB del vaccino terapeutico Vacc-4x di Bionor Pharma.
Pare che questo candidato vaccino abbia mostrato un ottimo profilo di sicurezza e abbia comportato una significativa diminuzione della viremia nei pazienti HIV+ che hanno sospeso la HAART dopo somministrazione del vaccino.
************************************************
Results From Phase IIB Placebo Controlled Study of Bionor Pharma's Vacc-4x Show Excellent Safety Profile, Statistically Significant Viral Load Reduction in Patients With HIV Who Suspend Antiretroviral Therapy
Vaccine for People Living With HIV/AIDS Reduces Viral Load, Works by Training Patients' Immune System to Target the Known "Achilles Heel" of HIV; Could Lead to New Approach for Treating HIV and Reducing Transmission of Virus
BANGKOK, THAILAND, Sep 14, 2011 (MARKETWIRE via COMTEX) -- Results from the furthest advanced study of a therapeutic vaccine candidate to treat people living with HIV/AIDS were announced at a news conference held by the Global HIV Vaccine Enterprise, hosts of AIDS Vaccine 2011 today in Bangkok.
The vaccine, developed by Bionor Pharma (oslo:BIONOR), is designed to target immune responses to conserved domains of p24 since sustained immune responses to p24 have been proven to be associated with delayed disease progression.
The results were announced by Professor Jan van Lunzen, Medical Director of the Infectious Diseases Unit at the University Medical Centre Hamburg-Eppendorf, Germany and an investigator on the placebo controlled, multi-national, multi-center Vacc-4x trial.
Among the key findings reported at the news conference:
-- Significant viral load reduction compared to pre-treatment levels. Patients on Vacc-4x experienced viral reduction of 70% (more than half a log) compared to their viral load levels before initiating ART. This reduction was not seen in the patients receiving placebo.
-- Confirmation that HIV can be targeted at its "Achilles heel," the known conserved domain p24. The viral load of immune response (ELISPOT) positive Vacc-4x subjects was significantly lower than that of ELISPOT positive subjects in the placebo group (p=0.023) indicating that Vacc-4x immunization may improve immune responses to p24 leading to a lower viral load levels, or set point. From this researchers conclude that Vacc-4x appears to refine a patient's immune system to create a better response to p24.
-- Improved viral load "set point". A statistically significant treatment difference in plasma viral load set point between the Vacc-4x and placebo groups in subjects after 28 weeks of ART.
-- Vacc-4x extended the time period patients could stay off ART. Subjects receiving the vaccine were almost twice as likely to remain off ART for more than one year compared to the placebo group (30% versus 18%). This is in agreement with the follow-up data from the phase IIa study from Ulleval University Hospital between 2003 and 2006 that showed patients vaccinated with Vacc-4x could stay off ART for on average 31 months.
-- Vacc-4x potential to prevent transmission of HIV. Because Vacc-4x can significantly lower viral load, and because researchers know that communities with lower viral load transmit the disease less successfully, the vaccine may be a candidate to slow the spread of HIV transmission -a finding that could have major implications for the developing world where a vaccine would be easier to administer and less expensive than current options.
Molte altre informazioni qui: marketwatch.com