About this trial
The aim of this observational multicenter retrospective cohort study is to evaluate the differences in risk factors, prognosis, clinicopathological and metabolic characteristics between early-onset pancreatic neuroendocrine tumors (EO-PanNETs) and late-onset pancreatic neuroendocrine tumors (LO-PanNETs).
The main questions it aims to answer are:
Are there distinct clinical, pathological, and metabolic profiles in EO-PanNETs compared with LO-PanNETs? Do EO-PanNETs have different prognostic outcomes compared with LO-PanNETs? Researchers will compare EO-PanNET patients with LO-PanNET patients and with matched nonmalignant controls to assess differences in tumor characteristics and associated metabolic conditions.
Participants will:
Provide retrospective clinical, pathological, and metabolic data from hospital records.
Have survival and recurrence outcomes assessed through follow-up data review.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
18 years or older; histopathologically confirmed pancreatic neuroendocrine tumor by surgical resection or biopsy.
Disqualifiers
Pancreatic neuroendocrine carcinoma; incomplete pathological data; received antitumor treatment prior to presentation; with other malignanies or malignant history.
Trial population
The study population comprised adult patients (≥18 years) diagnosed with pancreatic neuroendocrine tumors (PanNETs) between 2013 and 2024. All cases had a histopathologically confirmed diagnosis and received treatment at one of the participating centers. Patients were excluded if they had poorly differentiated neuroendocrine carcinoma, mixed neuroendocrine-non-neuroendocrine neoplasm, undefined tumor differentiation, recurrent disease, non-initial treatment, or a history of other malignancies.
Trial design
Cohort
Retrospective
Treatments tested in this trial
Not listed
Trial groups
Trial outcomes
Primary outcomes
Overall Survival
Secondary outcomes
Disease-specific survival
Progression-free survival
Disease-free survival
Sponsors and contacts
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Qilu Hospital of Shandong University
Lead sponsor
China-Japan Friendship Hospital
Collaborator
The Affiliated Hospital of Qingdao University
Collaborator
Qianfoshan Hospital
Collaborator