Latiglutenase as a Treatment for Celiac Disease
拉蒂谷蛋白酶治疗乳糜泻
基本信息
- 批准号:9393247
- 负责人:
- 金额:$ 59.3万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-09-15 至 2019-08-31
- 项目状态:已结题
- 来源:
- 关键词:AdherenceAgingAnimalsAutoimmune DiseasesBiologicalBiological MarkersBiopsyBloodBreadCYP3A4 geneCeliac DiseaseClinicClinicalClinical TrialsDataDeteriorationDevelopmentDiagnosisDiagnosticDietDigestionDiseaseDisease remissionEnrollmentEnzymesEsophagogastroduodenoscopyExposure toGlutamineGlutenGoalsHealthHeightHistologicHourHumanIngestionIntakeIntestinesKnowledgeLeadLifeMeasurementMeasuresMetabolismModelingMonitorMucous MembraneNatural ProductsOralOutcomeOutcome MeasurePatient Outcomes AssessmentsPatientsPeptidesPharmaceutical PreparationsPlacebosPopulationProlineProteinsRandomizedReadingRecoveryReportingResistanceRunningSafetySamplingSerumSimvastatinSmall IntestinesStomachSymptomsTherapeuticVillousWorkarmbasecostdiariesdietary supplementseffective therapyexperimental studygastrointestinalhuman studyimprovedminimally invasiveproduct developmentreduce symptomsresearch clinical testingresponsescreeningsymptom treatmenttooltreatment durationward
项目摘要
Project Summary/Abstract
Celiac disease (CD) is an autoimmune disorder of the small intestine, afflicting about 1% of the world's
population, for which there is no cure. Currently the only therapeutic option to avoid gastrointestinal‐
related symptoms and potentially long‐term health consequences is the life‐long strict adherence to a glu‐
ten‐free diet (GFD). However, a majority of patients never fully recover. There is a huge unmet need for a
therapeutic solution to be used as an adjunct to a GFD. There is a further unmet need for an effective and
minimally‐invasive tool to monitor small intestinal recovery in CD patients as an alternative to esoph‐
agogastroduodenoscopy (EGD), which is invasive, costly and not generally recommended by clinicians for
disease monitoring.
ImmunogenX is a clinical‐stage therapeutic and diagnostic company focused on celiac disease (CD).
Our lead product development is the orally administered enzyme product latiglutenase, which has shown
evidence for histologic protection and symptom reduction in response to exposure to moderate amounts of
dietary gluten. The mechanism of action is the proteolytic digestion along specific glutamine and proline
bonds of digestively resistant gluten peptides in the stomach using a combination of two digestive en‐
zymes. Our diagnostic product CypCel is based on a drug biomarker simvastatin (SV) that is highly me‐
tabolized in the small intestine and is present in blood at concentrations that are proportional to the extent
of villous health.
Latiglutenase, a two‐enzyme natural product, has a strong scientific premise to justify further clinical
testing. It has been shown in a variety of model stomach experiments to detoxify antigenic gluten proteins.
Furthermore, there has been sufficient animal and human safety data to be registered as a dietary supple‐
ment. However, we would first like to obtain more scientific data to inform us on the most responsible and
optimal path toward further development and product launch. Previous clinical trials have yielded encour‐
aging but inconclusive information regarding its impact on improving mucosal health. We propose to the
NCCIH a study to fill this gap in our scientific knowledge.
In this application we propose a human study consisting of a gluten‐challenge for diagnosed CD pa‐
tients in remission. We will employ placebo and latiglutenase arms in a 1:1 ratio and will measure the bio‐
logical signatures for mucosal changes using biopsy readings of villous height to crypt depth ratio (Vh:Cd)
and CypCel measurements (as a minimally‐invasive indicator of mucosal health). The trial will be powered
to a primary endpoint for biopsy Vh:Cd and secondary endpoint for SV level in serum samples collected 1
and 2 hours after administration. Our enrollment target based on adequate powering of the primary and
secondary endpoints is 40 completed patients. We will also employ the recently validated Celiac Disease
Symptom Diary patient reported outcome (CDSD PRO) tool for CD symptoms in order to demonstrate an
association between the change in the biological signature (Vh:Cd) and improvement in a clinical outcome
(symptoms). We anticipate completing this enrollment at the Mayo Clinic (Rochester, MN) where we have
already initiated a CypCel trial. This work will provide vital scientific data to help justify further clinical
testing.
1
项目总结/摘要
乳糜泻(CD)是一种小肠的自身免疫性疾病,困扰着世界上约1%的人。
目前唯一的治疗选择,以避免胃肠道-
相关症状和潜在的长期健康后果是终身严格遵守葡萄糖,
然而,大多数患者从未完全康复。
还存在对一种有效且有效的治疗溶液的未满足的需求,
监测CD患者小肠恢复的微创工具,可替代esoph
胃镜检查(EGD),这是侵入性的,昂贵的,通常不推荐临床医生用于
疾病监测。
ImmunogenX是一家专注于乳糜泻(CD)的临床阶段治疗和诊断公司。
我们的主要产品开发是口服酶产品latiglutenase,
有证据表明,暴露于适量的
作用机制是蛋白水解消化沿着特定的谷氨酰胺和脯氨酸
结合的消化抗性面筋肽在胃中使用两种消化酶的组合,
我们的诊断产品CypCel是基于一种药物生物标志物辛伐他汀(SV),
在小肠中被吸收,并以与
绒毛的健康
麦谷蛋白酶是一种双酶天然产物,具有很强的科学前提,可以证明进一步的临床应用是合理的。
在多种胃模型实验中已显示其可使抗原性谷蛋白解毒。
此外,有足够的动物和人类安全数据可以注册为膳食补充剂。
然而,我们首先希望获得更多的科学数据,以告知我们最负责任的,
进一步开发和产品发布的最佳途径。之前的临床试验已经产生了鼓励,
但关于其对改善粘膜健康的影响尚无定论。我们建议
NCCIH的一项研究填补了我们科学知识中的这一空白。
在本申请中,我们提出了一项人体研究,包括对诊断为CD的患者进行谷蛋白激发,
我们将以1:1的比例使用安慰剂和宽谷蛋白酶组,并将测量生物学指标。
使用绒毛高度与隐窝深度比(Vh:Cd)活检读数的粘膜变化的逻辑特征
和CypCel测量(作为粘膜健康的微创指标)。
主要终点为活检Vh:Cd,次要终点为采集的血清样本中的SV水平1
我们的入组目标是基于初级和次级的充足电力,
次要终点是40例完成研究的患者。我们还将采用最近验证的腹腔疾病
CD症状的症状日记患者报告结局(CDSD PRO)工具,以证明
生物特征(Vh:Cd)变化与临床结局改善之间的相关性
我们预计在马约诊所(罗切斯特,明尼苏达州)完成该入组,
这项工作将提供重要的科学数据,以帮助证明进一步的临床试验
试验.
1
项目成果
期刊论文数量(0)
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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Joseph A Murray其他文献
Joseph A Murray的其他文献
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{{ truncateString('Joseph A Murray', 18)}}的其他基金
A Clinical Study of Latiglutenase as a Treatment for Symptom Reduction for Celiac Disease
拉蒂谷蛋白酶治疗乳糜泻症状的临床研究
- 批准号:
10059016 - 财政年份:2019
- 资助金额:
$ 59.3万 - 项目类别:
A Clinical Study of Latiglutenase as a Treatment for Symptom Reduction for Celiac Disease
拉蒂谷蛋白酶治疗乳糜泻症状的临床研究
- 批准号:
10303056 - 财政年份:2019
- 资助金额:
$ 59.3万 - 项目类别:
A Clinical Study of Latiglutenase as a Treatment for Symptom Reduction for Celiac Disease
拉蒂谷蛋白酶治疗乳糜泻症状的临床研究
- 批准号:
10116258 - 财政年份:2019
- 资助金额:
$ 59.3万 - 项目类别:
Epidemiology of Celiac Disease: A Population Based Study
乳糜泻的流行病学:基于人群的研究
- 批准号:
8009634 - 财政年份:2010
- 资助金额:
$ 59.3万 - 项目类别:
A HLA Mouse Model for Gluten Sensitivity and Enteropathy
麸质敏感性和肠病的 HLA 小鼠模型
- 批准号:
8089764 - 财政年份:2010
- 资助金额:
$ 59.3万 - 项目类别:
Epidemiology of Celiac Disease: A Population Based Study
乳糜泻的流行病学:基于人群的研究
- 批准号:
7861261 - 财政年份:2009
- 资助金额:
$ 59.3万 - 项目类别:
A HLA Mouse Model for Gluten Sensitivity and Enteropathy
麸质敏感性和肠病的 HLA 小鼠模型
- 批准号:
7037861 - 财政年份:2006
- 资助金额:
$ 59.3万 - 项目类别:
A HLA Mouse Model for Gluten Sensitivity and Enteropathy
麸质敏感性和肠病的 HLA 小鼠模型
- 批准号:
7545857 - 财政年份:2006
- 资助金额:
$ 59.3万 - 项目类别:
A HLA Mouse Model for Gluten Sensitivity and Enteropathy
麸质敏感性和肠病的 HLA 小鼠模型
- 批准号:
7331471 - 财政年份:2006
- 资助金额:
$ 59.3万 - 项目类别:
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