Clinical trial NCT06315439: Digital Confocal Microscopy for Real-time Diagnosis of Pancreatic Solid Lesion
Official title: Digital Confocal Microscopy for Real-time Diagnosis of Pancreatic Solid Lesion: a Multicentre Study
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Pancreas Adenocarcinoma
Endoscopic Ultrasound
Digital Pathology
Lead sponsor: Campus Bio-Medico University
Sponsor class: OTHER
First posted: 2024-03-18
Enrollment: 78
Sex: ALL
Minimum age (years): 18
Maximum age (years): 90
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Patients with solid pancreatic lesion will be enrolled

Brief summary: Endoscopic ultrasound-guided (EUS) tissue acquisition is the current standard of care for the diagnosis of pancreatic solid lesions but it is burdened by a non-negligible risk of non-diagnostic or inconclusive results.

Ex-vivo fluorescence confocal laser microscopy (FCM) with MAVIG VivaScope® 2500M-G4 could allow real time assessment of adequacy and diagnosis of the sample.

Detailed description: Endoscopic ultrasound-guided (EUS) tissue acquisition is the current standard of care for the diagnosis of pancreatic solid lesions.

However, EUS-sampling is burdened by a non-negligible risk of non-diagnostic or inconclusive results, with an estimated negative predictive value not higher than 70-80%.

ROSE could improve the diagnostic yeld of this procedure. Data about the utility of rapid on-site evalutation (ROSE) are still controversial. Without ROSE, current guidelines suggest performance of three to four needle passes with an fine needle aspiration (FNA) needle or two to three passes with a fine needle biopsy (FNB) needle.

Potential drawbacks of ROSE are the considerable time commitment, costs and logistical and personnel issues that arise because of the "on demand" nature of these procedures with the need to have available technologists.

Ex-vivo fluorescence confocal laser microscopy (FCM) is an optical technology for rapid microscopic digital imaging of fresh unfixed biological specimens without any slide preparation.

FCM involves no damage or cell/tissue loss during the examination and the sample can subsequently be recovered and formalin-fixed and paraffin-embedded (FFPE) for permanent histology. FCM allows both cellular and architectural details to be visualized, similar to standard histological analysis of paraffin-embedded or frozen samples. With FCM, multimodal confocal microscopy using different laser sources and fusion images can generate optical plans similar to those from hematoxylin/eosin (H\&E)- stained sections directly from native tissues.

Recently, the feasibility of FCM with MAVIG VivaScope® 2500M-G4 in EUS-FNB sample of pancreatic solid lesions has been investigated . This previous single-center study demonstrated good concordance between the FCM image-based evaluation and the final FFPE histology.

However in this first study, a single type of FNB needle was used for all the procedures and the pathologist involved was expert in digital pathology and in pancreatic disease. Therefore it might be not representative of the everyday clinical practice. In addition the first study was mainly focused on the adequacy assessment of the samples.

Eligibility criteria: Inclusion Criteria:

* pancreatic solid lesions

Exclusion Criteria:

* cystic lesions
* not suitable acoustic window for needle biopsy
* decline to give informed consent.

Primary outcomes:
measure: Diagnostic accuracy
timeFrame: baseline
Secondary outcomes:
Other outcomes:
Locations:
city: Rome
country: Italy
facility: Fondazione Policlinico Campus Bio Medico
state: Roma
Study officials:
References:
citation: Itoi T, Sofuni A, Itokawa F, Irisawa A, Khor CJ, Rerknimitr R. Current status of diagnostic endoscopic ultrasonography in the evaluation of pancreatic mass lesions. Dig Endosc. 2011 May;23 Suppl 1:17-21. doi: 10.1111/j.1443-1661.2011.01132.x.
citation: Polkowski M, Jenssen C, Kaye P, Carrara S, Deprez P, Gines A, Fernandez-Esparrach G, Eisendrath P, Aithal GP, Arcidiacono P, Barthet M, Bastos P, Fornelli A, Napoleon B, Iglesias-Garcia J, Seicean A, Larghi A, Hassan C, van Hooft JE, Dumonceau JM. Technical aspects of endoscopic ultrasound (EUS)-guided sampling in gastroenterology: European Society of Gastrointestinal Endoscopy (ESGE) Technical Guideline - March 2017. Endoscopy. 2017 Oct;49(10):989-1006. doi: 10.1055/s-0043-119219. Epub 2017 Sep 12.
citation: Facciorusso A, Wani S, Triantafyllou K, Tziatzios G, Cannizzaro R, Muscatiello N, Singh S. Comparative accuracy of needle sizes and designs for EUS tissue sampling of solid pancreatic masses: a network meta-analysis. Gastrointest Endosc. 2019 Dec;90(6):893-903.e7. doi: 10.1016/j.gie.2019.07.009. Epub 2019 Jul 13.
citation: Gkolfakis P, Crino SF, Tziatzios G, Ramai D, Papaefthymiou A, Papanikolaou IS, Triantafyllou K, Arvanitakis M, Lisotti A, Fusaroli P, Mangiavillano B, Carrara S, Repici A, Hassan C, Facciorusso A. Comparative diagnostic performance of end-cutting fine-needle biopsy needles for EUS tissue sampling of solid pancreatic masses: a network meta-analysis. Gastrointest Endosc. 2022 Jun;95(6):1067-1077.e15. doi: 10.1016/j.gie.2022.01.019. Epub 2022 Feb 4.
citation: Stigliano S, Crescenzi A, Taffon C, Covotta F, Hassan C, Antonelli G, Verri M, Biasutto D, Scarpa RM, Di Matteo FM. Role of fluorescence confocal microscopy for rapid evaluation of EUS fine-needle biopsy sampling in pancreatic solid lesions. Gastrointest Endosc. 2021 Sep;94(3):562-568.e1. doi: 10.1016/j.gie.2021.03.029. Epub 2021 Mar 31.