DNA-mutation Analysis in Cyst Fluid of Suspected Intraductal Papillary Mucinous Neoplasia of the Pancreas

Pancreas Cyst Clinical Trial

Official title:

DNA-mutation Analysis by Next Generation Sequencing in Cyst Fluid of Suspected Intraductal Papillary Mucinous Neoplasia of the Pancreas Obtained by Endoscopic Ultrasound-guided Fine Needle Aspiration (ZYSTEUS-Study)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03820531
• Other study ID #: ZYSTEUS-Study
• Status: Completed
• Phase: N/A
• Start date: January 1, 2018
• Est. completion date: December 1, 2022

Study information

• Verified date: December 2022
• Source: Theresienkrankenhaus und St. Hedwig-Klinik GmbH
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Diagnostic tools are needed to identify mucinous cysts for further evaluation or follow-up respectively to identify cysts with HGD or invasive cancer at an early stage for surgical resection. Molecular genetic analysis of pancreatic cyst fluid is a new but rapidly evolving method to identify KRAS/GNAS oncogenic driver mutations in mucinous cysts and to identify tumour suppressor gene mutations which are involved in advanced cysts with HGD or carcinoma. The ongoing ZYSTEUS-study tries to implement DNA mutation analysis by Next Generation Sequencing in the diagnostic algorithm of pancreas cyst evaluation. The first aim is to distinguish mucinous from non-mucinous cysts. The second aim is to define relevant tumour suppressor gene mutations which are relevant to distinguish between LGD and HGD/carcinoma in mucinous cysts.

Description:

Intraductal papillary mucinous neoplasm (IPMN) with low grade dysplasia (LGD) can progress to high grade dysplasia (HGD) or invasive cancer. Main duct IPMN, mixed type IPMN or branch duct IPMN with high risk stigmata are highly predictive for malignancy. Therefore, patients in good general state should be considered for surgical resection. Guidelines like the International Fukuoka Consensus Guidelines from 2017 or the European evidence-based Guidelines on Pancreatic cyst neoplasms from 2018 provide detailed recommendations on the management of IPMNs by focusing on clinical characteristics, image morphology, cytology and laboratory parameters. However, these applied guidelines still lead to surgical overtreatment of pancreas cysts based on the pathologic outcomes as neither HGD nor carcinoma is found in up to 82.1 % of the resected cysts. Cyst fluid sent for cytology usually provides adequate cellular material for analysis in only 31% of the cases and Endoscopic Ultrasound-guided forceps biopsy has not yet shown to be better than fine needle aspiration. Hence, further diagnostic tools are needed to identify mucinous cysts for further evaluation or follow-up respectively to identify cysts with HGD or invasive cancer at an early stage for surgical resection. Molecular genetic analysis of pancreatic cyst fluid is possibly able to identify KRAS/GNAS oncogenic driver mutations in mucinous cysts and to identify tumour suppressor gene mutations which are involved in advanced cysts with HGD or carcinoma. This workgroup described a high sensitive method of targeted Next Generation Sequencing in pancreas cyst fluid with a limit of detection of allele frequency down to 0.01 %. Further investigations of the ongoing ZYSTEUS-study are focused on the implementation of DNA mutation analysis by NGS in the diagnostic algorithm of pancreas cyst evaluation. The first aim is to reliably distinguish mucinous from non-mucinous cysts respectively main duct IPMN from chronic pancreatitis with main duct dilatation as the absence of KRAS/GNAS-mutations is highly predictive for non-mucinous diseases. The second aim is to define relevant tumour suppressor gene mutations which are relevant to differentiate LGD from HGD/carcinoma in mucinous cysts. DNA mutation analysis will be compared with already established peroperative diagnostic tests of pancreas cyst fluid: Measurement of CEA and lipase as well as cytology.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 150
• Est. completion date: December 1, 2022
• Est. primary completion date: December 1, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• pancreas cysts with cyst size > 15mm

• pancreas with main duct dilation > 5mm

Exclusion Criteria:

• patients who are not fit for surgery

Related Conditions & MeSH terms

• Cysts
• Pancreas Cyst
• Pancreatic Cyst
• Pancreatic Neoplasms

Intervention

Diagnostic Test:
• Next Generation Sequencing
DNA Mutational Analysis in pancreas cyst fluid concerning KRAS/GNAS-mutations and mutations in tumor supressor genes
• CEA and lipase
Measuring CEA and lipase level in pancreas cyst fluid: CEA > 192 ng/ml and lipase > 200 U/l = mucinous cyst
• Cytology
Cytology in pancreas cyst fluid: mucinous versus non-mucinous cyst; LGD versus HGD/Carcinoma
• Histology of resected pancreas cyst
Histology of resected pancreas cyst concerning mucinous versus non-mucinous cyst, IPMN versus non-IPMN and LGD versus HGD/Carcinoma

Locations

Country	Name	City	State
Germany	Tertiary referral hospital: Theresienkrankenhaus und St. Hedwig Hospital, Academic	Mannheim

Sponsors (2)

Lead Sponsor	Collaborator
Theresienkrankenhaus und St. Hedwig-Klinik GmbH	University Hospital Heidelberg

Country where clinical trial is conducted

Germany, 

References & Publications (6)

Amato E, Molin MD, Mafficini A, Yu J, Malleo G, Rusev B, Fassan M, Antonello D, Sadakari Y, Castelli P, Zamboni G, Maitra A, Salvia R, Hruban RH, Bassi C, Capelli P, Lawlor RT, Goggins M, Scarpa A. Targeted next-generation sequencing of cancer genes dissects the molecular profiles of intraductal papillary neoplasms of the pancreas. J Pathol. 2014 Jul;233(3):217-27. doi: 10.1002/path.4344. — View Citation

Felsenstein M, Noe M, Masica DL, Hosoda W, Chianchiano P, Fischer CG, Lionheart G, Brosens LAA, Pea A, Yu J, Gemenetzis G, Groot VP, Makary MA, He J, Weiss MJ, Cameron JL, Wolfgang CL, Hruban RH, Roberts NJ, Karchin R, Goggins MG, Wood LD. IPMNs with co-occurring invasive cancers: neighbours but not always relatives. Gut. 2018 Sep;67(9):1652-1662. doi: 10.1136/gutjnl-2017-315062. Epub 2018 Mar 2. — View Citation

Kanda M, Sadakari Y, Borges M, Topazian M, Farrell J, Syngal S, Lee J, Kamel I, Lennon AM, Knight S, Fujiwara S, Hruban RH, Canto MI, Goggins M. Mutant TP53 in duodenal samples of pancreatic juice from patients with pancreatic cancer or high-grade dysplasia. Clin Gastroenterol Hepatol. 2013 Jun;11(6):719-30.e5. doi: 10.1016/j.cgh.2012.11.016. Epub 2012 Nov 28. — View Citation

Rosenbaum MW, Jones M, Dudley JC, Le LP, Iafrate AJ, Pitman MB. Next-generation sequencing adds value to the preoperative diagnosis of pancreatic cysts. Cancer Cytopathol. 2017 Jan;125(1):41-47. doi: 10.1002/cncy.21775. Epub 2016 Sep 20. — View Citation

Singhi AD, McGrath K, Brand RE, Khalid A, Zeh HJ, Chennat JS, Fasanella KE, Papachristou GI, Slivka A, Bartlett DL, Dasyam AK, Hogg M, Lee KK, Marsh JW, Monaco SE, Ohori NP, Pingpank JF, Tsung A, Zureikat AH, Wald AI, Nikiforova MN. Preoperative next-generation sequencing of pancreatic cyst fluid is highly accurate in cyst classification and detection of advanced neoplasia. Gut. 2018 Dec;67(12):2131-2141. doi: 10.1136/gutjnl-2016-313586. Epub 2017 Sep 28. — View Citation

Volckmar AL, Endris V, Gaida MM, Leichsenring J, Stogbauer F, Allgauer M, von Winterfeld M, Penzel R, Kirchner M, Brandt R, Neumann O, Sultmann H, Schirmacher P, Rudi J, Schmitz D, Stenzinger A. Next generation sequencing of the cellular and liquid fraction of pancreatic cyst fluid supports discrimination of IPMN from pseudocysts and reveals cases with multiple mutated driver clones: First findings from the prospective ZYSTEUS biomarker study. Genes Chromosomes Cancer. 2019 Jan;58(1):3-11. doi: 10.1002/gcc.22682. Epub 2018 Oct 17. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Patients with a mucinous pancreas cyst	Number of patients with the preoperative diagnosis of a mucinous pancreas cyst (numerator) in correlation with the number of patients with a mucinous pancreas cyst confirmed by surgery (denominator)	From EUS-guided fine needle aspiration of pancreas cyst fluid up to seven days
Primary	Pancreas cyst with HGD or carcinoma	Number of patients with the preoperative diagnosis of a HGD/carcinoma pancreas cyst (numerator) in correlation with the number of patients with a HGD/carcinoma pancreas cyst confirmed by surgery (denominator)	From EUS-guided fine needle aspiration of pancreas cyst fluid up to seven days