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Study of Proteomic Factors in Patients With Severe Dry Eye Syndrome Treated With Autologous Serum Eye Drops. (Prot-CSA)

2026年7月8日 更新者：Centre Hospitalier Universitaire de Saint Etienne

Study of Proteomic Factors in Patients With Severe Dry Eye Syndrome Treated With Autologous Serum Eye Drops. Single-center Study.

Dry eye syndrome is a multifactorial pathology of the ocular surface. Epidemiological studies report a prevalence of 15% in adults aged between 50 and 95. Depending on the severity of the disease, different treatment strategies may be proposed. The use of autologous serum eye drops (AS) represents an interesting therapeutic alternative for the most severe forms of the disease, due to the serum's composition, which is similar to that of tears. The mechanism of action of AS is still controversial, but is probably multifactorial and seems to be based on growth factors, vitamin factors and anti-inflammatory factors. The clinical response of patients could be dependent on the protein composition of the eye drops. The investigators are aiming to highlight a difference in serum protein composition that could explain the differences in clinical response between patients treated with autologous serum eye drops and to identify the proteins that would be involved in a clinical response or non-response.

研究概览

地位

招聘中

条件

干预/治疗

研究类型

介入性

注册 (估计的)

68

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

研究联系人备份

学习地点

  • 法国
      • Saint-Etienne、法国、42055
        • 招聘中
        • CHU de Saint-Etienne
        • 副研究员：
          • Marie-Caroline TRONE, MD
        • 副研究员：
          • Emera CHHUY, MD
        • 首席研究员：
          • Elodie JACQUEROUX, MD
        • 副研究员：
          • Freddy MOUNSEF, MD
        • 副研究员：
          • Raphaël AUGER, MD

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人
  • 年长者

接受健康志愿者

不

描述

Inclusion Criteria:

  • Age over 18 years
  • Patients with severe dry eye with an Oxford score > 1
  • Patients with dry eye syndrome refractory to conventional treatments: tear substitutes, immunosuppressive eye drops or corticosteroids.
  • AS-naïve patients followed by an ophthalmologist at Saint-Etienne University Hospital
  • Patients affiliated to or entitled under a social security scheme
  • Patients who have received informed information about the study

Exclusion Criteria:

  • Severe ocular dryness due to a genetic disease
  • Patients not under the care of an ophthalmologist at Saint-Etienne University Hospital.
  • Patients not eligible for treatment with AS (pregnant women, anaemia, current infection, progressive disease, serological results contraindicating blood sampling).
  • Patients under protective measures

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：其他
  • 分配：不适用
  • 介入模型：单组作业
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
实验性的：All patients newly treated with autologous serum eye drops
To identify proteins potentially associated with clinical improvement in severe dry eye syndrome, as determined by the Oxford score.
其他：Autologous serum eye drops
The proteins contained in the autologous serum eye drops will be screened and the proteins judged to be the most relevant will be quantified.
其他：Collecting data from the medical record

We will collect the following medical data :

  • Oxford score
  • OSDI score
  • Causes of dry eye syndrome
  • drug treatment history

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
To identify and assess the relative abundance of proteins present in autologous serum-based eye drops in responders and non-responders after 6 months of treatment.
大体时间：Month 6
Proteomic profiles will be determined by a non-targeted analysis of autologous serum eye drops using high-performance liquid chromatography coupled with high-resolution mass spectrometry. This technique makes it possible to identify as many proteins as possible in a sample, without a pre-established list of proteins to look for. The quantity of a protein is expressed as a variation in abundance, or expression level, between two different states (e.g. responder/non-responder, etc.), enabling us to define an abundance ratio between our two groups of patients. Patients with a clinical response at 6 months, defined as an improvement in Oxford score of greater than or equal to 1 point, will be considered responders.
Month 6

次要结果测量

结果测量
措施说明
大体时间
Improvement in dry eye symptoms after 6 months of treatment with autologous serum eye drops.
大体时间：From baseline to Month 6
This improvement will be defined by a change in the OSDI score of 11 points. The OSDI score ranges from 0 to 100, with higher scores indicating more severe ocular surface disease symptoms and a worse outcome. A change of 11 points corresponds to the Minimal Clinically Important Difference (MCID).
From baseline to Month 6
Change in relative protein abundance in autologous serum eye drops.
大体时间：Month 6
Change in relative protein abundance in autologous serum eye drops measured by mass spectrometry in non-responding patients.
Month 6
Measurement of concentrations of selected proteins in autologous serum eye drops.
大体时间：Month 6
Protein concentrations will be quantitatively measured using protein-specific ELISA assays for each analyte.
Month 6

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Centre Hospitalier Universitaire de Saint Etienne

调查人员

  • 首席研究员：Elodie JACQUEROUX, MD、CHU de Saint-Etienne

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年7月7日

初级完成 (估计的)

2028年6月1日

研究完成 (估计的)

2028年12月1日

研究注册日期

首次提交

2026年5月20日

首先提交符合 QC 标准的

2026年6月2日

首次发布 (实际的)

2026年6月8日

研究记录更新

最后更新发布 (实际的)

2026年7月9日

上次提交的符合 QC 标准的更新

2026年7月8日

最后验证

2026年7月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • 24CH169
  • ANSM (其他标识符：2024-A02435-42)

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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