Clinical Trials

The purpose of this study is to determine if microbiome DNA can be detected in the juice from the upper GI tract and that of the clinical residual specimens from patients who have or will experience an endoscopic ultrasound with sampling as part of their clinical care.

The specific aims of this study are as follows:

Aim # 1:  To determine the prevalence of pancreas solid tumor intratumoral microbiota, their composition and diversity in specimens prospectively acquired via endoscopic ultrasound (EUS).

Aim # 2:  To investigate both the oral and duodenal microbiome of such patients to evaluate for similarities and differences.

The aims of this study are to:

1. Study the history of esophageal leiomyomas in patients followed with periodic surveillance with endoscopic ultrasound.

2. Determine baseline characteristics and symptoms of patients diagnosed with esophageal leiomyomas.

3. Determine the transformation rate of malignancy or symptoms (if previously asymptomatic) in patients who undergo interval surveillance EUS examinations for esophageal leiomyomas.

4. Determine risk factors for progression of symptoms or malignancy in patients followed with interval surveillance EUS exams for esophageal leiomyomas.

5. Assess morbidity and mortality in patients followed with interval surveillance EUS examinations for esophageal leiomyomas.

6. Identify malignant sub-epithelial tumors, including leiomyosarcomas, granular cell tumors, and gastrointestinal stromal tumors (GIST) to see ...

The purpose of this study is to describe the findings and outcomes of patient undergoing contrast-enhanced harmonic endoscopic ultrasound (CE-EUS) imaging. A registry will be created to monitor for possible procedure adverse events and to perform descriptive statistics for the patients who undergo this procedure.

The purpose of this study is to evaluate the usefulness of combining a core liver biopsy guided by endoscopic ultrasound and stomach balloon placement by endoscope for the diagnosis and treatment of fatty liver disease and obesity.

The purpose of this research study is to gather information on the feasibility of performing novel molecular analysis on Endoscopic Ultrasound acquired cytologic material and to assess molecular changes in cytology samples to see if that may aid treatment decision planning for future patients.

The purpose of this study is to evaluate the diagnostic performance of Endoscopic Ultrasound (EUS) shear wave elastography in the assessment of liver fibrosis compared to magnetic resonance (MR) elastography.

The purpose of this study is to assess the risk for cancer spread caused by the leaking of tumor particles into the blood from the biopsy procedure endoscopic ultrasound guided fine needle aspiration.

The primary aim of this study is to determine if there is any evidence of viral shedding within the gastrointestinal or pulmonary system in patients with a prior recent negative nasopharyngeal PCR test. This will be of critical importance to the practice of endoscopy during this pandemic as it will help:  1) determine if a pre-endoscopy testing strategy is adequate to ramp-up access to semi-urgent and eventually elective procedures, while allowing the decreased utilization of limited or costly personal protective equipment (e.g., N95 respirators) while still keeping the GI endoscopy staff safe; and 2) realize the false negative rate of pre-procedural testing, which is vital to inform procedural practice policy and operations.