Investigación y desarrollo de formulaciones mucoadhesivas vaginales de liberación sostenida de tenofovir para la prevención del VIH
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2022
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17/02/2022
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Universidad Complutense de Madrid
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Tal y como indica la Organización Mundial de la Salud, la infección por el virus de la inmunodeficiencia humana (VIH) continúa siendo un grave problema de salud pública a nivel mundial. Las elevadas cifras que se registran cada año ponen de manifiesto la necesidad de medidas urgentes al respecto. Aunque esta infección está extendida por todo el mundo, la zona más castigada es el África subsahariana. La transmisión del virus a las mujeres por vía sexual, sustentada en las desigualdades entre hombres y mujeres y la violencia contra ellas, entre otros factores, explica gran parte de los estremecedores datos en estos países. Por todo esto, la profilaxis surge como una medida imprescindible para frenar el avance de la infección. Entre las distintas herramientas destinadas a prevenir la transmisión sexual del VIH, los microbicidas de administración vaginal de fármacos antirretrovirales constituyen una opción prometedora para las mujeres de las zonas más afectadas, ya que les otorgarían el poder del que no disponen con otras estrategias como el uso del preservativo. El Tenofovir (TFV) es uno de los fármacos antirretrovirales más estudiados tanto para el tratamiento como para la prevención de la infección y se ha incluido en distintas formas farmacéuticas vaginales (especialmente los geles), habiendo alcanzado varias de ellas los ensayos clínicos. Sin embargo, los resultados de los estudios en fases más avanzadas hacen dirigir la mirada hacia nuevas formulaciones que ofrezcan una protección prolongada frente al virus y promuevan una mayor adherencia por parte de las pacientes...
As indicated by the World Health Organization, the infection by the human immunodeficiency virus (HIV) continues to be a serious public health problem worldwide. The high figures registered each year show the need for urgent measures in this respect. Although it is extended throughout the world, the most affected area is sub-Saharan Africa. The sexual transmission of the virus to women, supported by the inequalities between men and women and the violence against them, among other factors, explains much of the shocking data in these countries. For all this, prophylaxis emerges as an essential measure to stop the progress of the infection.Among the different tools intended for preventing the sexual transmission of HIV, microbicides for vaginal administration of antiretroviral drugs are a promising option for women living in the most affected areas, as they would give them the power that they do not have with other strategies such as the use of condom. Tenofovir (TFV) is one of the most studied antiretroviral drugs for both treatment and prevention of the infection which has been included in different vaginal dosage forms (especially gels), some of them having even reached clinical trials. However, the results of studies in advanced stages highlight the need for new formulations which could offer prolonged protection against the virus thus promoting greater adherence by patients...
As indicated by the World Health Organization, the infection by the human immunodeficiency virus (HIV) continues to be a serious public health problem worldwide. The high figures registered each year show the need for urgent measures in this respect. Although it is extended throughout the world, the most affected area is sub-Saharan Africa. The sexual transmission of the virus to women, supported by the inequalities between men and women and the violence against them, among other factors, explains much of the shocking data in these countries. For all this, prophylaxis emerges as an essential measure to stop the progress of the infection.Among the different tools intended for preventing the sexual transmission of HIV, microbicides for vaginal administration of antiretroviral drugs are a promising option for women living in the most affected areas, as they would give them the power that they do not have with other strategies such as the use of condom. Tenofovir (TFV) is one of the most studied antiretroviral drugs for both treatment and prevention of the infection which has been included in different vaginal dosage forms (especially gels), some of them having even reached clinical trials. However, the results of studies in advanced stages highlight the need for new formulations which could offer prolonged protection against the virus thus promoting greater adherence by patients...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Farmacia, Departamento de Farmacia Galénica y Tecnología Alimentaria, leída el 17-02-2022