Investigation of Immune Pathways and Microbiome Disruption as Drivers of Mutagenesis in Oesophagogastric Cancer
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 310
- 试验地点
- 3
- 主要终点
- Derive biomarker(s) from the oropharyngeal microbiome and mucin profiles in each patient cohort
研究概览
简要总结
The number of cases of oesophagogastric cancer is increasing every year. Currently, only 39% of patients with oesophageal cancer can have potentially curative treatment by the time they are diagnosed. This is because it typically presents late, and it is only when patients start to develop symptoms of advanced disease such as difficulty swallowing and weight loss, that they seek medical attention.
There are approximately 9300 new cases of oesophageal cancer in the UK each year and at 17%, it has the 5th poorest 5-year survival of all cancers in the UK.
It is diagnosed by carrying out a camera test called a gastroscopy which allows a biopsy of the cancer to be taken. This is an invasive procedure, and unlike for other types of cancer, such as bowel cancer, there is no test to risk-stratify patients at an earlier stage. Risk-stratification enables patients more likely to develop oesophagogastric cancer to be identified, which allows them to have more focused follow-up. This can potentially enable cancer to be diagnosed earlier, before the disease becomes more advanced, allowing patients to have potentially curative treatment.
Scientific research has identified that the healthy bacteria in the oesophagus and stomach changes as oesophagogastric cancer develops. The investigators want to see if similar changes can be identified in the healthy bacteria in the mouth which could be indicative of cancer developing in the oesophagus or stomach. The investigators then hope to use this information to develop a non-invasive risk-stratification tool that can be used to diagnose oesophagogastric cancer earlier and thereby enable more patients to be cured.
详细描述
The purpose of this study is to investigate the interplay between immune pathways, the mucosal barrier and microbiome in oesophagogastric cancer, with the intention of identifying biologically-plausible biomarkers implicated in oesophagogastric carcinogenesis. The long-term translational objective of this work is to develop a non-invasive risk-stratification test with the aim of identifying patients at risk of developing, or with possible early oesophagogastric cancer, who can then undergo diagnostic testing with the intention of identifying early, potentially curable disease.
In order to do this, a deep understanding of the microbiome, the immune pathways, and ensuing changes at the level of the oesophagogastric mucosa is required. This work aligns with one of the cornerstones of improving survival in OGc; early diagnosis.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 17 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult patients >16 years old
- •Referred for oesophago-gastro-duodenoscopy (OGD) to investigate any of the following;
- •Symptoms including difficulty swallowing, vomiting, reflux symptoms including heartburn, anaemia, GI bleeding, upper abdominal pain and weight loss.
- •Oesophagitis, gastritis or GORD.
- •Barrett's oesophagus (BO) requiring surveillance or endoscopic therapy.
- •Histologically confirmed OGc undergoing further investigation as part of staging such as laparoscopy and OGD or undergoing surgical resection (oesophagectomy/gastrectomy) as part of their treatment.
排除标准
- •Cancers other than adenocarcinoma or squamous cell carcinoma, including but not limited to gastro-intestinal stromal tumours (GIST), mucosa associated lymphoid tissue lymphoma (MALT lymphoma) and carcinoid tumours.
- •Patients with recurrent OGc.
结局指标
主要结局
Derive biomarker(s) from the oropharyngeal microbiome and mucin profiles in each patient cohort
时间窗: Through study completion (an average of 3 years)
Identification of a novel biomarker detectable in salivary samples or buccal swabs from the oropharynx, that can be used as a marker of downstream neoplastic changes leading to oesophagogastric carcinoma.
次要结局
- Determine concomitant alterations in mucosal immune pathways and mucus biology(Through study completion (an average of 3 years))
- Establish causation between microbiome/immune/mucin perturbation and carcinogenesis.(Through study completion (an average of 3 years))
- Characterise and compare the microbiome and mucin profiles of the oropharynx(Through study completion (an average of 3 years))