Development of a Sustained Release Injectable Formulation for Long-Term Delivery of ELQs
Development of a Sustained Release Injectable Formulation for Long-Term Delivery of ELQs
批准号:
10412947
负责人:
Michael Kevin RISCOE
金额:
$80.56万
依托单位国家:
美国
项目类别:
财政年份:
2019
资助国家:
美国
项目状态:
已结题
起止时间:
2019-06-05 至 2024-05-31
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
中文摘要
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。 路线图包括一个目标愿望清单,
候选概况(TCP)和药物(目标产品概况,即,TPP)。随着最新修订的
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,Malaria Journal,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。
需要具有致病性肝硬化阶段活性的药物进行化学预防,以防止感染或暴发。
在疟疾季节的抵抗力。 该TCP以复方药物阿托伐醌+
氯胍MMV设想,可注射缓释制剂可以作为长效缓释剂开发。
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bc1复合物的有效和选择性抑制剂,ELQ-300靶向疟原虫
在血液和肝脏阶段杀死恶性疟原虫,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,
关于SRI International 在本申请中,我们寻求NIH支持对ELQ-1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
阻断感染性子孢子的肝脏阶段感染。 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,
具有最佳的储库制剂以提供动物免受子孢子感染的长期保护。 四
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。
人类使用。总体目标是开发一种长效缓释制剂的ELQ-300前药
用于预防疟疾的化疗。
英文摘要
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.
期刊论文(1)
专著(0)
科研奖励(0)
会议论文
BLR&D Research Career Scientist Renewal Award Application
-
批准号:10293572
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2019
-
负责人:Michael Kevin RISCOE
-
依托单位:
Development of a Sustained Release Injectable Formulation for Long-Term Delivery of ELQs
-
批准号:9816269
-
项目类别:
-
资助金额:$83.32万
-
财政年份:2019
-
负责人:Michael Kevin RISCOE
-
依托单位:
BLR&D Research Career Scientist Renewal Award Application
-
批准号:10047237
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2019
-
负责人:Michael Kevin RISCOE
-
依托单位:
BLR&D Research Career Scientist Renewal Award Application
-
批准号:10515311
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2019
-
负责人:Michael Kevin RISCOE
-
依托单位:
Pharmachin Optimization and Testing
-
批准号:10620168
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2016
-
负责人:Michael Kevin RISCOE
-
依托单位:
Pharmachin Optimization and Testing
-
批准号:10398114
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2016
-
负责人:Michael Kevin RISCOE
-
依托单位:
Design and Optimization of Novel Antimalarial Drugs
-
批准号:9898269
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2016
-
负责人:Michael Kevin RISCOE
-
依托单位:
Pharmachin Optimization and Testing
-
批准号:10260927
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2016
-
负责人:Michael Kevin RISCOE
-
依托单位:
Design and Optimization of Novel Antimalarial Drugs
-
批准号:9248787
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2016
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing ELQs for Treatment and Prevention of Malaria
-
批准号:8776262
-
项目类别:
-
资助金额:$61.34万
-
财政年份:2013
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing ELQs for Treatment and Prevention of Malaria
-
批准号:8603528
-
项目类别:
-
资助金额:$65.39万
-
财政年份:2013
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing ELQs for Treatment and Prevention of Malaria
-
批准号:9186993
-
项目类别:
-
资助金额:$61.34万
-
财政年份:2013
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing Pharmachins for Treatment and Prevention of Drug Resistant Malaria
-
批准号:8598060
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2012
-
负责人:Michael Kevin RISCOE
-
依托单位:
Novel Therapeutics to Target Parasite Cytochrome bc1
-
批准号:10665031
-
项目类别:
-
资助金额:$62.01万
-
财政年份:2012
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing ELQs for Treatment and Prevention of Malaria
-
批准号:8484660
-
项目类别:
-
资助金额:$57.44万
-
财政年份:2012
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing Pharmachins for Treatment and Prevention of Drug Resistant Malaria
-
批准号:8774172
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2012
-
负责人:Michael Kevin RISCOE
-
依托单位:
Development of a Synergistic Drug Combination for Prevention and Treatment of Malaria
-
批准号:10066258
-
项目类别:
-
资助金额:$57.26万
-
财政年份:2012
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing Pharmachins for Treatment and Prevention of Drug Resistant Malaria
-
批准号:8331842
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2012
-
负责人:Michael Kevin RISCOE
-
依托单位:
Optimizing Pharmachins for Treatment and Prevention of Drug Resistant Malaria
-
批准号:8460421
-
项目类别:
-
资助金额:$0.0万
-
财政年份:2012
-
负责人:Michael Kevin RISCOE
-
依托单位:
Development of a Chloroquine Replacement Drug
-
批准号:7828905
-
项目类别:
-
资助金额:$51.81万
-
财政年份:2009
-
负责人:Michael Kevin RISCOE
-
依托单位:
海外基金