CIRcular and Non-coding RNAs as Clinically USeful Biomarkers in Pancreaticobiliary Cancers
-
- STATUS
- Recruiting
-
- days left to enroll
- 38
-
- participants needed
- 186
-
- sponsor
- Royal Surrey County Hospital NHS Foundation Trust
Summary
- Define the circRNA expression profile in PDAC and identify dysregulated circRNA candidates. These will be validated in further tissue samples.
- Evaluate candidate circRNA Expression in blood (plasma samples) as a clinically relevant diagnostic biomarker; expanding on the primary objective to include other diagnostic features such as specificity, area under the receiver operator curve, positive predictive value and negative predictive value.
- Explore the expression of candidate circRNAs and related molecules in patient biomaterials (including tissue, blood, bile and biopsy samples) as biomarkers for diagnosis; prognostication; association with clinico-pathologic features and survival outcomes; and their ability to predict/monitor treatment response e.g. surgery and/or chemotherapy.
- Utilise computer-based analyses to describe the theoretical interactions of candidate circRNAs within the full complement of RNA and related molecules produced by the tumour cells, called the 'transcriptome', in human PDAC.
Description
This first step of this project is a 'discovery experiment' to describe the expression profiles of 8 PDAC tissue samples compared to controls; with subsequent validation of candidate circRNAs:
8 paired samples of PDAC tumour tissue and associated normal pancreatic tissue will be collected at the time of surgery (after the pancreatic tumour is resected). The expression levels of circRNAs will be profiled and the most significantly dysregulated candidate circRNAs will be chosen (also considering other datasets and the current literature in this decision).
The second step of this project is a prospective non-interventional observational cohort study to investigate these candidate circRNAs further:
The expression of these candidate circRNAs expression levels will be measured longitudinally throughout the clinical timeline of patients with PDAC in blood samples; and in bile, tissue and biopsy samples (when this is safely available after clinical sampling and without additional investigations). This will be compared against control patients with benign biliary disease and other biliary tract cancers. These controls would only be available for blood tests and, if undergoing cholecystectomy, bile. Blood tests will be taken alongside clinical bloods or after anaesthesia for surgical procedures, bile will be taken after removal of the gallbladder for gallstone disease when this is in excess to clinical requirements.
The ability of each circRNAs as a diagnostic, prognostic and predictive biomarkers will be described and compared to CA 19-9 (the only biomarker that is currently widely accepted in PDAC). This will first be considered in blood samples and then other patient biomaterials.
The final part of the project will be to undertake both computer and laboratory evaluation of candidate circRNAs in order to propose a its molecular relationships and how this may explain and associations described.
A Bioinformatical review will give the ability to computationally determine the miRNA-binding capabilities of candidate circRNAs, and the downstream mRNAs regulated. Gene-ontology and KEGG pathway enrichment-analyses of the differentially expressed genes will allow a global-view of the transcriptome under circRNA regulation in PDAC.
Details
| Condition | Pancreatic Cancer, Pancreatic Cancer, Islet Ce417ll Cancer, Pancreatic disorder, Pancreatic Disorders, Biliary neoplasm, Biliary Tract Cancer, Urothelial Tract Cancer, Neoplasm of unspecified nature of digestive system, Digestive System Neoplasms, Pancreatic Disorders, Urothelial Tract Cancer, Islet Ce417ll Cancer, Biliary Tract Cancer, Digestive System Neoplasms, cancer of the pancreas, pancreatic cancers, cancer, pancreatic, biliary cancer |
|---|---|
| Clinical Study Identifier | NCT04584996 |
| Sponsor | Royal Surrey County Hospital NHS Foundation Trust |
| Last Modified on | 14 March 2021 |
How to participate?
,
You have contacted , on
Your message has been sent to the study team at ,
What happens next?
- You can expect the study team to contact you via email or phone in the next few days.
- Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.
You are contacting
Primary Contact
Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.
Learn moreIf you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.
Learn moreComplete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.
Learn moreSimilar trials to consider
Not finding what you're looking for?
Sign up as a volunteer to stay informed
Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.
Sign up as volunteer