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Exocrine-Endocrine Pancreatic Crosstalk: Precision Pathways to Reframe Diabetes Pathophysiology (EXPAND)

The EXPAND study is a prospective observational study designed to investigate the biological mechanisms underlying the heterogeneity of type 2 diabetes and related metabolic disorders.

The study will enroll adults with and without pancreatic disease, including patients undergoing pancreatic surgery, individuals with chronic pancreatitis, subjects at high risk of type 2 diabetes, and patients with newly diagnosed type 2 diabetes. Clinical, metabolic, imaging, genetic, microbiome, and molecular data will be integrated to identify distinct metabolic endotypes and to investigate the interactions between the exocrine pancreas, endocrine pancreas, and adipose tissue. The ultimate goal is to improve the understanding of diabetes pathophysiology and support the development of precision medicine approaches.

調査の概要

状態

まだ募集していません

条件

詳細な説明

Type 2 diabetes mellitus is a heterogeneous disease characterized by substantial variability in pathophysiological mechanisms, disease progression, and clinical outcomes. Current clinical classifications do not fully capture the biological complexity underlying metabolic dysfunction.

The EXPAND (Exocrine-Endocrine Pancreatic Axis in Diabetes) study is a prospective observational study aimed at identifying and characterizing metabolic endotypes through the integration of clinical, metabolic, imaging, genetic, microbiome, and multi-omic data. The study is based on the hypothesis that interactions among the exocrine pancreas, endocrine pancreas, and adipose tissue contribute to beta-cell dysfunction and metabolic heterogeneity.

Approximately 440 participants will be enrolled across five predefined cohorts: patients undergoing pancreatic resection for pancreatic diseases, patients with chronic or previous pancreatitis, individuals at increased risk of type 2 diabetes, and subjects with newly diagnosed type 2 diabetes.

Participants will undergo detailed metabolic phenotyping including oral glucose tolerance tests, hyperglycemic/euglycemic clamp studies, laboratory assessments, magnetic resonance imaging-based body fat quantification, dietary assessment, genetic analyses, microbiome profiling, and biomarker measurements. For surgical cohorts, pancreatic and adipose tissue samples obtained during clinically indicated surgery will also be analyzed.

Unsupervised clustering and archetype analysis approaches will be used to identify metabolic endotypes. Associations between endotypes and clinical, metabolic, imaging, histopathological, genetic, and molecular characteristics will be explored. Longitudinal analyses in surgical cohorts will evaluate metabolic changes following pancreatic resection.

The results are expected to improve the understanding of diabetes pathophysiology and facilitate the development of biomarker-driven precision medicine strategies.

研究の種類

観察的

入学 (推定)

440

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

サンプリング方法

非確率サンプル

調査対象母集団

Participants will be recruited from patients receiving care at Fondazione Policlinico Universitario A. Gemelli IRCCS (Rome, Italy). The study population includes adults with and without pancreatic disease, including individuals undergoing pancreatic resection, patients with chronic or previous pancreatitis, subjects at increased risk of type 2 diabetes mellitus, and individuals with newly diagnosed type 2 diabetes mellitus. Participants will be consecutively enrolled from the Departments of Endocrinology, Diabetology, Gastroenterology, and Pancreatic Surgery according to the predefined eligibility criteria.

説明

Inclusion Criteria:

  • Adults aged 20 to 78 years.
  • Ability and willingness to provide written informed consent.
  • Eligibility for one of the study cohorts:
  • Individuals undergoing pancreatectomy for non-endocrine pancreatic disease.
  • Individuals with pancreatic ductal adenocarcinoma undergoing pancreatectomy.
  • Individuals with chronic pancreatitis or a previous episode of acute pancreatitis.
  • Individuals at increased risk of type 2 diabetes mellitus, including impaired fasting glucose and/or impaired glucose tolerance.
  • Individuals with newly diagnosed type 2 diabetes mellitus.
  • Ability to undergo study-related metabolic assessments and sample collection procedures.

Exclusion Criteria:

  • Age <20 years or >78 years.
  • Inability or unwillingness to provide informed consent.
  • Pregnancy or breastfeeding.
  • Diagnosis of type 1 diabetes mellitus.
  • Participation in another interventional clinical trial involving an investigational medicinal product within 30 days before enrollment.
  • Clinical conditions that preclude completion of the planned metabolic assessments.
  • Inability to comply with study procedures.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

コホートと介入

グループ/コホート
Pancreatic Surgery for Non-Endocrine Pancreatic Disease
Adults undergoing partial or total pancreatectomy for non-endocrine pancreatic disease. Participants will undergo clinical evaluation, metabolic phenotyping, imaging assessments, biomarker measurements, gut microbiome profiling from stool samples, and Genetic Risk Score determination. Pancreatic and adipose tissue specimens obtained during clinically indicated surgery may be analyzed for histopathological, molecular, and multi-omic studies.
Pancreatic Ductal Adenocarcinoma Undergoing Pancreatectomy
Adults with pancreatic ductal adenocarcinoma undergoing partial or total pancreatectomy. Participants will undergo clinical evaluation, metabolic phenotyping, imaging assessments, biomarker measurements, gut microbiome profiling from stool samples, and Genetic Risk Score determination. Pancreatic and adipose tissue specimens obtained during clinically indicated surgery may be analyzed for histopathological, molecular, and multi-omic studies.
Chronic or Previous Pancreatitis
Adults with chronic pancreatitis or a previous episode of acute pancreatitis. Participants will undergo clinical evaluation, metabolic phenotyping, imaging assessments, biomarker measurements, gut microbiome profiling from stool samples, and Genetic Risk Score determination.
Individuals at Risk for Type 2 Diabetes
Adults at increased risk of type 2 diabetes, including individuals with impaired fasting glucose and/or impaired glucose tolerance, without exocrine pancreatic disease. Participants will undergo clinical evaluation, metabolic phenotyping, imaging assessments, biomarker measurements, gut microbiome profiling from stool samples, and Genetic Risk Score determination.
Newly Diagnosed Type 2 Diabetes
Adults with newly diagnosed type 2 diabetes mellitus. Participants will undergo clinical evaluation, metabolic phenotyping, imaging assessments, biomarker measurements, gut microbiome profiling from stool samples, and Genetic Risk Score determination.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Identification and Characterization of Metabolic Endotypes
時間枠:At baseline and during study assessments up to 60 months
Identification and characterization of physiological endotypes of glucose metabolism using unsupervised clustering and archetype analysis integrating metabolic phenotyping, imaging, and biological/multi-omic variables.
At baseline and during study assessments up to 60 months

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

捜査官

  • 主任研究者:Teresa Mezza、Fondazione Policlinico Universitario Agostino Gemelli IRCCS

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年9月1日

一次修了 (推定)

2029年11月1日

研究の完了 (推定)

2031年9月1日

試験登録日

最初に提出

2026年6月22日

QC基準を満たした最初の提出物

2026年6月22日

最初の投稿 (実際)

2026年6月26日

学習記録の更新

投稿された最後の更新 (実際)

2026年6月26日

QC基準を満たした最後の更新が送信されました

2026年6月22日

最終確認日

2026年6月1日

詳しくは

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未定

医薬品およびデバイス情報、研究文書

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いいえ

米国FDA規制機器製品の研究

いいえ

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