RT Journal Article
T1 Dapivirine Bioadhesive Vaginal Tablets Based on Natural Polymers for the Prevention of Sexual Transmission of HIV
A1 Cazorla Luna, Raúl
A1 Martín Illana, Araceli
A1 Notario Pérez, Fernando
A1 Bedoya Del Olmo, Luis Miguel
A1 Ruiz Caro, Roberto
A1 Bermejo Benito, Paulina
A1 Veiga Ochoa, María Dolores
AB Young sub-Saharan women are a group that is vulnerable to the sexual transmission of HIV. Pre-exposure prophylaxis through vaginal microbicides could provide them an option for self-protection. Dapivirine has been demonstrated to have topical inhibitory effects in HIV, and to provide protection against the sexual transmission of this virus. This paper reports on the studies into swelling behaviour, bioadhesion and release carried out on dapivirine tablets based on chitosan, locust bean gum and pectin, to select the most suitable formulation. The modified simulated vaginal fluid led to a high solubility of dapivirine and allowed the dapivirine release profiles to be characterized in sink conditions; this aqueous medium is an alternative to organic solvents, which are not a realistic option when evaluating systems whose behaviour varies in aqueous and organic media. Of the formulations evaluated, dapivirine/pectin tablets containing 290 mg of polymer and 30 mg of dapivirine present the most moderate swelling, making them the most comfortable dosage forms. Their high bioadhesive capacity would also allow the formulation to remain in the action zone and release the drug in a sustained manner, pointing to this formulation as the most promising candidate for future evaluations of vaginal microbicides for the prevention of HIV.
PB MDPI
SN 2073-4360
YR 2019
FD 2019-03-13
LK https://hdl.handle.net/20.500.14352/12762
UL https://hdl.handle.net/20.500.14352/12762
LA spa
NO Cazorla Luna, R., Martín Illana, A., Notario Pérez, F. et al. «Dapivirine Bioadhesive Vaginal Tablets Based on Natural Polymers for the Prevention of Sexual Transmission of HIV». Polymers, vol. 11, n.o 3, marzo de 2019, p. 483. DOI.org (Crossref), https://doi.org/10.3390/polym11030483.
NO Ministerio de Economía, Comercio y Empresa (España)/Fondo Europeo de Desarrollo Regional
DS Docta Complutense
RD 17 ago 2024