Development of a Sustained Release Injectable Formulation for Long-Term Delivery of ELQs
开发用于长期递送 ELQ 的缓释注射制剂
基本信息
- 批准号:10412947
- 负责人:
- 金额:$ 80.56万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2019
- 资助国家:美国
- 起止时间:2019-06-05 至 2024-05-31
- 项目状态:已结题
- 来源:
- 关键词:AddressAnimal ModelAnimalsAntimalarialsAntioxidantsAreaBloodBlood CirculationCarbonatesChemistryChemopreventionChemoprotectionChloroguanideClinicalCollaborationsCytochrome bc1 ComplexDevelopmentDisease OutbreaksDoseDrug CombinationsDrug Delivery SystemsDrug KineticsEstersEthyl EtherExhibitsFormulationGoalsHIVHalf-LifeHeadHumanInfectionInfection preventionInjectableInjectionsInternationalIntramuscularIntramuscular InjectionsJournalsKnowledgeLengthLife Cycle StagesLiverMalariaMalaria VaccinesMedicalMedicineMidgutModelingMulti-Drug ResistanceMusOilsOocystsOralParasitesPerformancePharmaceutical PreparationsPlasmodium falciparumPolyethylene GlycolsPopulationPositioning AttributePre-Clinical ModelProdrugsPropertyProphylactic treatmentPublished CommentPublishingQiRattusRegimenResearchResistanceRouteSafetySchizophreniaSeasonsSideSiteSolubilitySolventsSporozoitesSuspensionsSystemTechnologyTimeUnited States National Institutes of HealthUpdateVariantWaterWorkalkyl groupatovaquonebaseclinical developmentcostcrystallinitydesigndisease transmissionexperienceimprovedinhibitornovelnovel therapeuticspre-clinicalresistant strainvectorvector mosquitowater solubilityzygote
项目摘要
Project Summary / Abstract
The Medicines for Malaria Venture (MMV) recently published a “roadmap” for the types of medicines that are
needed to support the long-term goal of malaria eradication. The roadmap consists of a wish list of target
candidate profiles (TCP) and medicines (target product profiles, i.e., TPP). With the most recent revision to the
anti-malarial target candidates and product profiles the MMV highlighted the need for identifying new medicines
for chemo-protection and chemo-prevention with long-acting molecules, and/or parenteral formulations (i.e.,
TCP-2) (Burrows, JN et al., 2017, Malaria Journal, 16:26). According to their updated roadmap new drugs are
needed to protect populations entering areas of high endemicity during the final stages of malaria elimination.
And drugs with causal liver-stage activity are needed for chemoprevention to prevent infection or outbreak of
resistance during malarial seasons. This TCP has been modeled on the combination drug atovaquone +
proguanil. The MMV envisions that an injectable sustained-release formulation could be developed as a long-
acting preventative providing up to 3 to 4 months of protection.
As a potent and selective inhibitor of the parasite’s cytochrome bc1 complex, ELQ-300 targets Plasmodium
falciparum in the blood and liver stages and even kills parasites developing in the midgut of the mosquito vector.
With support from the NIH and US DOD we have been successful in developing an oral formulation of prodrug
ELQ-331 for use in humans for weekly prophylaxis against malaria, work that was performed in collaboration
with SRI International. In the present application we seek NIH support for a comprehensive assessment of ELQ-
300 prodrugs for intramuscular injection to effect the sustained-release of drug from an oil depot (or other
extended release matrix) into the host bloodstream at levels above the minimum effective concentration needed
to block liver stage infection by infectious sporozoites. In collaboration with SRI International we will leverage
our knowledge of ELQ-300 prodrug chemistry, crystallinity, stability, and solvent/vehicle solubility with their
expertise in formulation design and optimization to identify the optimal ELQ-300 prodrug design that is paired
with an optimal depot formulation to provide long-term protection of animals from sporozoite infection. Four
different prodrug chemistries will be evaluated and compared, varying R-group chain length to optimize the
physiochemical properties of the drug and to enhance solubility in vehicles and mixtures that are approved for
human use. The overall goal is to develop a long-acting sustained release formulation of an ELQ-300 prodrug
for chemo-protection against malaria.
项目总结/摘要
疟疾药物风险投资公司(MMV)最近发布了一份“路线图”,
支持消灭疟疾的长期目标所需要的。路线图包括一个目标的愿望清单,
候选概况(TCP)和药物(目标产品概况,即, TPP)。随着对TPP的最新修订,
抗疟疾候选靶点和产品概况MMV强调需要确定新药
对于使用长效分子的化疗保护和化疗预防,和/或肠胃外制剂(即,
TCP-102)(Burrows,JN等人, 2017年,疟疾杂志,16:26)。根据他们更新的路线图,
在消灭疟疾的最后阶段,需要保护进入高流行地区的人口。
化学预防需要具有因果性肝脏中期活性的药物来预防感染或爆发
该TCP以阿托伐醌+联合药物为模型,
该MMV设想,可注射缓释制剂可以作为一个长期的药物开发,
采取预防措施,提供长达3至4个月的保护。
作为疟原虫细胞色素bc 1复合物的有效和选择性抑制剂,ELQ-300靶向疟原虫
恶性疟原虫在血液和肝脏阶段,甚至杀死蚊子媒介中肠中发育的寄生虫。
在美国国立卫生研究院和美国国防部的支持下,我们成功地开发了一种口服前药制剂,
ELQ-331用于人类每周预防疟疾,
在本申请中,我们寻求NIH支持对ELQ-EFL进行全面评估。
300用于肌内注射以实现药物从油库(或其它贮库)持续释放的前药
缓释基质)以高于所需最低有效浓度的水平进入宿主血流
通过与SRI国际合作,我们将利用
我们对ELQ-300前药化学、结晶度、稳定性和溶剂/溶媒溶解度的了解,
在配方设计和优化方面的专业知识,以确定最佳的ELQ-300前药设计,
具有最佳的长效制剂,可长期保护动物免受子孢子感染。
将评价和比较不同的前药化学,改变R2基团的链长以优化前药。
药物的理化性质,并提高在批准用于治疗的媒介物和混合物中的溶解度。
总的目标是开发一种长效缓释制剂的ELQ-ELQ 300前药
用于预防疟疾的化疗。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Michael Kevin RISCOE其他文献
Michael Kevin RISCOE的其他文献
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{{ truncateString('Michael Kevin RISCOE', 18)}}的其他基金
BLR&D Research Career Scientist Renewal Award Application
BLR
- 批准号:
10293572 - 财政年份:2019
- 资助金额:
$ 80.56万 - 项目类别:
Development of a Sustained Release Injectable Formulation for Long-Term Delivery of ELQs
开发用于长期递送 ELQ 的缓释注射制剂
- 批准号:
9816269 - 财政年份:2019
- 资助金额:
$ 80.56万 - 项目类别:
BLR&D Research Career Scientist Renewal Award Application
BLR
- 批准号:
10047237 - 财政年份:2019
- 资助金额:
$ 80.56万 - 项目类别:
BLR&D Research Career Scientist Renewal Award Application
BLR
- 批准号:
10515311 - 财政年份:2019
- 资助金额:
$ 80.56万 - 项目类别:
Design and Optimization of Novel Antimalarial Drugs
新型抗疟药物的设计与优化
- 批准号:
9898269 - 财政年份:2016
- 资助金额:
$ 80.56万 - 项目类别:
Design and Optimization of Novel Antimalarial Drugs
新型抗疟药物的设计与优化
- 批准号:
9248787 - 财政年份:2016
- 资助金额:
$ 80.56万 - 项目类别:
Optimizing ELQs for Treatment and Prevention of Malaria
优化 ELQ 以治疗和预防疟疾
- 批准号:
8776262 - 财政年份:2013
- 资助金额:
$ 80.56万 - 项目类别:
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