Application of Sol–Gels for Treatment of Gynaecological Conditions—Physiological Perspectives and Emerging Concepts in Intravaginal Drug Delivery

Ritu Thapa, Shila Gurung, Marie‐Odile Parat, Harendra S. Parekh, Preeti Pandey
In: Gels · 2022 · vol. 8(2) , pp. 99 · doi:10.3390/gels8020099 · PMID:35200479 · PMC8871440 · W4211010498
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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

Sol-gel systems offer promising therapeutic potential for gynaecological conditions by providing versatile, physiologically triggered intravaginal drug delivery for diverse formulations and therapeutics.

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Abstract

Approaches for effective and sustained drug delivery to the female reproductive tract (FRT) for treating a range of gynaecological conditions remain limited. The development of versatile delivery platforms, such as soluble gels (sol-gels) coupled with applicators/devices, holds considerable therapeutic potential for gynaecological conditions. Sol-gel systems, which undergo solution-to-gel transition, triggered by physiological conditions such as changes in temperature, pH, or ion composition, offer advantages of both solution- and gel-based drug formulations. Furthermore, they have potential to be used as a suitable drug delivery vehicle for other novel drug formulations, including micro- and nano-particulate systems, enabling the delivery of drug molecules of diverse physicochemical character. We provide an anatomical and physiological perspective of the significant challenges and opportunities in attaining optimal drug delivery to the upper and lower FRT. Discussion then focuses on attributes of sol-gels that can vastly improve the treatment of gynaecological conditions. The review concludes by showcasing recent advances in vaginal formulation design, and proposes novel formulation strategies enabling the infusion of a wide range of therapeutics into sol-gels, paving the way for patient-friendly treatment regimens for acute and chronic FRT-related conditions such as bacterial/viral infection control (e.g., STDs), contraception, hormone replacement therapy (HRT), infertility, and cancer.

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