Therapeutic D-peptide Inhibitor of HIV Entry
HIV 进入的治疗性 D 肽抑制剂
基本信息
- 批准号:8597326
- 负责人:
- 金额:$ 100万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-12-12 至 2015-11-30
- 项目状态:已结题
- 来源:
- 关键词:AIDS/HIV problemAcquired Immunodeficiency SyndromeAdverse effectsAnimal ModelApplications GrantsAutopsyCenters for Disease Control and Prevention (U.S.)Cessation of lifeChemistryClinicClinicalClinical ResearchClinical TrialsCommunicable DiseasesCytochrome P450DataDevelopmentDiseaseDoseDrug ExposureDrug FormulationsDrug KineticsDrug resistanceEnsureEnzymesEpidemicEvaluationExcretory functionFDA approvedFecesFutureFuzeonGoalsHIVHIV Entry InhibitorsHIV InfectionsHIV therapyHumanInfectionInjectableInvestigationLeadLifeLiver MicrosomesMetabolismMethodsModelingMusNatureOryctolagus cuniculusParentsPatientsPeptide HydrolasesPeptidesPharmaceutical PreparationsPharmacologic SubstancePharmacologyPhasePlasma ProteinsPredispositionProcessProductionProgram DevelopmentPropertyProtein BindingRattusResearch DesignResistanceRodentSafetySmall Business Innovation Research GrantTherapeuticToxic effectToxicokineticsToxicologyUrineVirus DiseasesWorkabsorptionanalytical methodchemical synthesisdesignexperiencein vivoinhibitor/antagonistinnovationirritationmanufacturing processmeetingsmicrobicidemonomermouse modelnonhuman primatenovelnovel therapeuticspreclinical studypublic health relevanceresponsesubcutaneous
项目摘要
DESCRIPTION (provided by applicant): With 33 million people living with HIV/AIDS (including 1.2 million in the US), and 1.8 million AIDS-related deaths annually, HIV/AIDS remains a formidable global epidemic (UNAIDS, CDC). Modern HIV therapy combines drugs from different classes to form "cocktail" therapies that have significantly prolonged the lives of many HIV patients. However, side effects and drug resistance remain serious concerns. Thus, there is an enduring need for novel HIV inhibitors with new mechanisms of action and stronger barriers to resistance. Navigen is a pharmaceutical development company targeting infectious diseases. Through an innovative discovery and design process, we have identified a novel HIV entry inhibitor (protease-resistant D-peptide) that targets HIV's conserved entry machinery and overcomes the current limitations of this inhibitor class. Our lead candidate (chol-PIE12-trimer) inhibits diverse strains from all major subtypes of HIV with high potency and possesses an unprecedented barrier to resistance. Further, chol-PIE12-trimer appears from our Phase I SBIR preclinical studies to possess pharmacokinetic (PK) and physicochemical properties that would support development of a once-weekly, and perhaps once-monthly (with depot formulation) subcutaneous injectable. In this three-year grant application, we propose the following specific aims to advance chol-PIE12-trimer towards IND filing, as well as continue to explore potential backup candidates including PIE12-trimer, should problems with chol-PIE12-trimer arise: (1) advance the manufacturing and formulation of chol-PIE12-trimer, (2) investigate the ADME properties of chol-PIE12-trimer, (3) hold a pre-IND meeting with the FDA to discuss our nonclinical and early clinical plans, (4) evaluate the in vivo proof-of-concept efficacy of chol-PIE12-trimer in a standard nonhuman primate (NHP) model of HIV infection, and (5) further characterize the safety of chol- PIE12-trimer in toxicology and safety pharmacology studies in rats and NHPs. These data will be used to select a final candidate for advancement to IND and ultimately to the clinic as a marketable entry inhibitor. This proposal will also provide valuable toxicology data that will advance D-peptides as a therapeutic platform against diverse viral infections and other diseases.
描述(由申请人提供):有3300万人感染艾滋病毒/艾滋病(其中120万人在美国),每年有180万人死于艾滋病,艾滋病毒/艾滋病仍然是一种可怕的全球流行病(联合国艾滋病规划署,美国疾病控制与预防中心)。现代艾滋病毒治疗将不同类别的药物结合起来,形成“鸡尾酒”疗法,大大延长了许多艾滋病毒患者的生命。然而,副作用和耐药性仍然是严重的问题。因此,对具有新的作用机制和更强的抵抗障碍的新型艾滋病毒抑制剂的需求是持久的。Navigen是一家针对传染病的药物开发公司。通过创新的发现和设计过程,我们已经确定了一种新的HIV进入抑制剂(蛋白酶抗性d肽),它针对HIV的保守进入机制,并克服了目前这类抑制剂的局限性。我们的主要候选药物(胆- pie12 -trimer)能高效抑制所有主要HIV亚型的多种毒株,并具有前所未有的耐药屏障。此外,从我们的I期SBIR临床前研究来看,胆- pie12 -trimer具有药代动力学(PK)和物理化学特性,可以支持每周一次或可能每月一次的皮下注射(使用储罐配方)的开发。在这项为期三年的资助申请中,我们提出了以下具体目标,以推进胆-PIE12-trimer的IND申请,并继续探索潜在的备选候选药物,包括PIE12-trimer,如果胆-PIE12-trimer出现问题:(1)推进胆-PIE12-trimer的生产和配方,(2)研究胆-PIE12-trimer的ADME特性,(3)与FDA举行ind前会议,讨论我们的非临床和早期临床计划,(4)评估胆-PIE12-trimer在标准非人灵长类动物(NHP) HIV感染模型中的体内概念验证疗效,(5)进一步表征胆-PIE12-trimer在大鼠和NHPs毒理学和安全药理学研究中的安全性。这些数据将用于选择最终候选药物进行临床试验,并最终作为市场准入抑制剂进入临床。该提案还将提供有价值的毒理学数据,这将推动d肽作为对抗多种病毒感染和其他疾病的治疗平台。
项目成果
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