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A low-profile copper intrauterine device that delivers long-acting contraception an

一种低调的铜宫内节育器，可提供长效避孕和

基本信息

批准号：
10675641
负责人：
JEFFREY T. JENSEN
金额：
$ 73.97万
依托单位：
UNIVERSITY OF WASHINGTON
依托单位国家：
美国
项目类别：
财政年份：
2020
资助国家：
美国
起止时间：
2020-09-16 至 2025-08-31
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/10675641
关键词：
AIDS prevention Address Adherence Alloys Anatomy Anti-Retroviral Agents Antiviral Agents Atopobium vaginae Benchmarking Biopsy Cells Cervical Cervix Uteri Chemicals Circulation Clinical Clinical Data Contraceptive Agents Contraceptive methods Copper Copper Intrauterine Devices Cytology Data Development Device Designs Devices Dose Drug Delivery Systems Drug Formulations Drug Kinetics Drug resistance Electrospinning Endocervix Endometrial Endometrium Ethylenes Exocervix FDA approved Female HIV HIV-1 HIV/AIDS Health Health Priorities Hormones Human Inflammatory Injectable Intrauterine Devices Lead Levonorgestrel Licensing Macaca Macaca mulatta Measurement Measures Memory Methods Modeling Monitor Mucous Membrane Operative Surgical Procedures Oral Papio Permeability Pharmaceutical Preparations Pharmacologic Substance Plasma Polyurethanes Positioning Attribute Pregnancy Prevention Prevention strategy Prodrugs Proteins Recording of previous events Reporting Reproductive Health Safety Serum Shapes Site Solid Solubility Study models Surgical sutures System Systemic infection Technology Tissues Uterine cavity Uterus Vagina Viral Width Woman cervicovaginal contraceptive efficacy cytokine drug efficacy efficacy evaluation efficacy study empowerment flexibility global health implantable device innovation microbicide microbiota next generation novel pandemic disease polydimethylsiloxane pre-exposure prophylaxis prevent protective efficacy prototype sexual HIV transmission simian human immunodeficiency virus success transmission process treatment as prevention ultrasound unintended pregnancy user-friendly vinyl acetate

项目摘要

ABSTRACT The dual impacts of the HIV/AIDS pandemic and unintended pregnancies constitute a major health burden for women worldwide and justify the development of highly-effective next-generation multipurpose prevention technologies (NGM) that combine safe, effective, and easily reversible long-acting contraception with HIV prevention. Here, we propose to adapt a memory wire copper intrauterine device (IUD) frame as a platform for intrauterine delivery of antiretroviral (AVR) drugs to provide user friendly HIV pre-exposure prophylaxis (PrEP) and contraception. We propose to evaluate ARV drug delivery systems compatible with IUD delivery for duel- protection up to three years. In Aim 1, we will formulate candidate antiviral drug/prodrug solid dispersions in matrix, reservoir and electrospun drug delivery systems and integrate these into an existing copper IUD to optimize drug loading, dissolution rate, chemical and functional stability, and stable integration with and functional attributes of the IUD. We will then evaluate the safety and pharmacokinetic effects of intrauterine delivery of candidate devices in baboons, and measure drug concentrations in the vagina, cervix, and endometrium. Finally, in Aim 3 we will use the macaque model to evaluate the protective efficacy of the drug- eluting delivery system for HIV pre-exposure prophylaxis against a repeated low-dose vaginal SHIV162P3 challenge.

抽象的艾滋病毒/艾滋病流行和意外怀孕的双重影响构成了重大的健康负担全世界妇女并证明开发高效的下一代多用途预防措施是合理的将安全、有效且易于逆转的长效避孕药与艾滋病毒结合起来的技术 (NGM) 预防。在这里，我们建议采用记忆线铜宫内节育器 (IUD) 框架作为平台宫内递送抗逆转录病毒 (AVR) 药物，以提供用户友好的 HIV 暴露前预防 (PrEP) 和避孕。我们建议评估与宫内节育器递送兼容的抗逆转录病毒药物递送系统，以实现双重目的保护期长达三年。在目标1中，我们将配制候选抗病毒药物/前药固体分散体基质、储库和电纺药物输送系统，并将它们集成到现有的铜宫内节育器中优化载药量、溶出率、化学和功能稳定性以及与和的稳定集成 IUD 的功能属性。然后我们将评估宫内节育器的安全性和药代动力学作用将候选装置递送到狒狒体内，并测量阴道、子宫颈和阴道中的药物浓度子宫内膜。最后，在目标3中我们将使用猕猴模型来评估药物的保护功效—— 用于针对反复低剂量阴道 SHIV162P3 进行 HIV 暴露前预防的洗脱输送系统挑战。