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Use of PET Imaging to Distinguish Malignant From Benign IPMN

This study has been terminated.
(Poor enrollment; PI left the institution)
Sponsor:
Collaborator:
National Center for Research Resources (NCRR)
Information provided by (Responsible Party):
Columbia University
ClinicalTrials.gov Identifier:
NCT01104116
First received: April 12, 2010
Last updated: July 27, 2016
Last verified: July 2016
  Purpose
Intraductal papillary mucinous neoplasm (IPMN) is a cystic pancreatic lesion that is a precursor to invasive pancreatic cancer. Differentiating whether an IPMN lesion is benign or malignant is critical, as the prognosis and management differs drastically, varying from surgery to clinical observation. However, despite physicians' attempts to characterize features concerning for malignancy, it is difficult to determine the likelihood of malignancy with conventional imaging techniques, and an accurate and non-invasive test to identify malignant IPMN is needed. Our hypothesis is that positron emission tomography (PET), a three-dimensional imaging that can identify cancer cells through their increased use of sugars, may be a superior test for differentiating between benign and malignant IPMN lesions. The investigators are planning a prospective pilot study of patients with IPMN who are undergoing surgery for their disease. These patients will undergo PET imaging, as well as computed tomography (CT), magnetic resonance imaging (MRI), and endoscopic ultrasound (EUS) as clinically indicated. Samples of tissue removed during surgery will be assessed and will serve as the gold standard for determining whether the lesion is benign or malignant. The investigators will evaluate the positive and negative predictive values of PET imaging for malignancy within IPMN lesions.

Condition Intervention
Neoplasm
Pancreatic Cancer
Radiation: [18F]-FDG PET/CT imaging

Study Type: Interventional
Study Design: Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Utility of [18F]-FDG PET Imaging to Distinguish Malignant From Benign Intrapapillary Mucinous Neoplasms

Resource links provided by NLM:


Further study details as provided by Columbia University:

Primary Outcome Measures:
  • Positive and Negative Predictive Value of PET Imaging for Identifying Malignant IPMN [ Time Frame: 1 month ] [ Designated as safety issue: No ]
    The primary outcome will be to determine the positive and negative predictive values of [18F]-FDG PET imaging for identifying malignant IPMN lesions in patients who are to undergo surgical resection. We will determine the mean SUV that would provide optimal positive predictive value for malignant IPMN. IPMN lesions will be classified categorically as benign (adenoma or borderline ) or malignant (in situ or invasive carcinoma) and PET imaging will be classified categorically as negative or positive, with focal FDG uptake corresponding to pancreatic lesion.


Secondary Outcome Measures:
  • Change in Lesion Characteristics to Assess Benefit of PET Scans [ Time Frame: 1 month ] [ Designated as safety issue: No ]
    The secondary outcome that we are interested in studying is the benefit of PET scan as compared to other imaging modalities, such as CT, MRI, and EUS. Thus, Patients will also have CT, MRI, and EUS imaging. We will look at how size, location, and branch of the IPMN lesion on PET compare to these other imaging modalities. The location, size, and pathology results of the actual surgical specimen will serve as the gold standard.


Enrollment: 1
Study Start Date: September 2009
Study Completion Date: March 2016
Primary Completion Date: May 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: PET/CT imaging
Surgical patients will undergo [18F]-FDG PET/CT imaging
Radiation: [18F]-FDG PET/CT imaging
Drug: F-18 Fluoro-2-Deoxyglucose (F-18 FDG)

Detailed Description:

Intraductal papillary mucinous neoplasm (IPMN) is a cystic pancreatic neoplasm that is a precursor to invasive pancreatic cancer. Differentiating whether an IPMN lesion is benign or malignant is critical, as the prognosis and management differs drastically, varying from surgical resection to observation. However, despite attempts to characterize features concerning for malignancy, it is difficult to determine the likelihood of malignancy with conventional imaging techniques, including CT, MRI, and EUS. An accurate, non-invasive test to identify malignant IPMN is needed.

The investigators' hypothesis is that [18F]-FDG PET may be a superior modality for differentiating between benign and malignant IPMN lesions. We are planning a prospective pilot study of ten consecutive patients with IPMN from the Columbia University Pancreas Center who are undergoing surgical resection for their disease. These patients will undergo [18F]-FDG PET imaging, as well as CT, MRI, and EUS as clinically indicated. All scans will be reviewed by two experienced nuclear medicine radiologists who will be blinded to the clinical characteristics of study patients and who will reach a consensus. Areas of focally increased [18F]-FDG intake will be identified. Side-by-side reading with CT scan will be performed to evaluate whether the increased [18F]-FDG uptake corresponds to a pancreatic lesion. Mean and maximal standardized uptake value (SUV) values, as well as differences in intensity between the region of interest and the remaining pancreas, will be calculated.Surgical pathology will be utilized as the gold standard for histological determination. Standard post-operative histological interpretation of each IPMN lesion will be recorded, including size, duct involvement (main, side, or mixed), ductal dilatation, lesion location (head, neck, body, tail), and histologic grade (adenoma, borderline, carcinoma in situ, invasive carcinoma). In addition, any associated pancreatitis or any other non-IPMN neoplastic change will also be noted.

Using PET scan results and surgical pathology information, we will evaluate the positive and negative predictive values of [18F]-FDG PET for malignancy within IPMN lesions.

  Eligibility

Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patient is seen in consultation for IPMN at Columbia-Presbyterian Medical Center and scheduled for surgical resection.
  • Patient has radiological evidence, by CT or MRI, suspicious for IPMN, with cystic lesion involving main duct of size equal to or greater than 3 cm and/or involvement of at least a 3 cm segment of the main pancreatic duct.
  • Patient has undergone EUS with aspiration of cyst fluid with sufficient fluid for CEA level.
  • Patient is at least 18 years of age.
  • Patient is able to provide written, informed consent.

Exclusion Criteria:

  • Active pancreatitis within 30 days of recruitment.
  • Uncontrolled diabetes mellitus.
  • Pregnancy or breastfeeding (urine beta-HCG will be performed on all women of child-bearing age prior to enrollment in study).
  • Unwillingness or inability to sign informed consent.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01104116

Locations
United States, New York
Columbia University Medical Center
New York, New York, United States, 10032
Sponsors and Collaborators
Columbia University
National Center for Research Resources (NCRR)
Investigators
Principal Investigator: Chaitanya Divgi, MD Columbia University
  More Information

Responsible Party: Columbia University
ClinicalTrials.gov Identifier: NCT01104116     History of Changes
Other Study ID Numbers: AAAD9508  UL1RR024156 
Study First Received: April 12, 2010
Results First Received: July 27, 2016
Last Updated: July 27, 2016
Health Authority: United States: Institutional Review Board
Individual Participant Data  
Plan to Share IPD: No

Keywords provided by Columbia University:
Pancreatic Cancer
Intraductal Papillary Mucinous Neoplasm
Pre-cancerous pancreatic lesion
PET Scan
Pancreatic Cancer Screening

Additional relevant MeSH terms:
Neoplasms
Pancreatic Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Endocrine Gland Neoplasms
Digestive System Diseases
Pancreatic Diseases
Endocrine System Diseases

ClinicalTrials.gov processed this record on September 29, 2016