Evaluating glucose tolerance in patients with diabetes after pancreatitis

Evaluation of Oral Glucose Tolerance Testing in Patients With Post-pancreatitis Diabetes Mellitus for Diagnosis and Characterization: a Cross-sectional Trial

Observational Changhai Hospital · NCT05989867

This study is testing how well people with diabetes after pancreatitis can handle sugar to better understand their condition and improve their treatment.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages15 Years to 85 Years
SexAll
SponsorChanghai Hospital Academic / other
Locations1 site (Shanghai, Shanghai)
Trial IDNCT05989867 on ClinicalTrials.gov

What this trial studies

This study evaluates the islet function and insulin secretion patterns in patients with post-pancreatitis diabetes mellitus (PPDM-C) using an oral glucose tolerance test. Blood samples will be collected to assess various factors, including pancreatic islet function, intestinal hormones, and plasma metabolites. The study aims to characterize the pathophysiological features of PPDM-C and provide evidence for its diagnosis. Continuous Glucose Monitoring will also be utilized to understand glycemic fluctuations in these patients and guide treatment.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 15-85 with chronic pancreatitis and diabetes mellitus, specifically those diagnosed with diabetes within two years of chronic pancreatitis onset.

Not a fit: Patients with type 1 diabetes, malignant tumors, or those who have undergone significant pancreatic or gastrointestinal surgeries may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the diagnosis and management of diabetes in patients with chronic pancreatitis.

How similar studies have performed: While similar studies have explored glucose tolerance in diabetes, this specific approach focusing on post-pancreatitis diabetes is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age 15-85
2. patients with the diagnosis of chronic pancreatitis and diabetes mellitus (exclude type 1 diabetes).
3. participants with painless chronic pancreatitis were diagnosed with diabetes within 2 years of the diagnosis of chronic pancreatitis.
4. participants with painful chronic pancreatitis were diagnosed with diabetes after the first attack of chronic pancreatitis.
5. patients with chronic pancreatitis were previously diagnosed type 2 diabetes mellitus for more than 3 years.

Exclusion Criteria:

1. Participants with suspected malignant tumors of the pancreas or other sites of the body (including pancreatic cyst and Benign pancreatic tumor), or participants in the terminal stage of severe disease
2. Prior pancreatic surgery (including total pancreatectomy, pancreaticoduodenectomy, distal pancreatectomy, pancreatojejunostomy, or Frey), and prior bariatric or gastrointestinal surgery.
3. Serious mental illness, lesion of the liver (alanine aminotransferase or aspartate aminotransferase \> 3 times the upper reference limit) or kidney (eGFR\<60 mL/min/1.73 m2), pregnancy, breastfeeding or planning pregnancy, or accompanied with active liver diseases such as hepatitis B or hepatic cirrhosis.
4. Diagnosed type 1 diabetes, or other metabolic diseases that affect blood glucose
5. Using high-dose insulin preparations, or drugs affecting glucose metabolism (oral steroids, thiazide diuretics, beta-blockers, beta-agonist, nicotinic acid, immunosuppressant agents, antiretroviral drugs, and antipsychotics)
6. Acute complications of diabetes (diabetic ketoacidosis, severe hypoglycemia), severe microvascular disease (proliferative diabetic retinopathy, known diabetic nephropathy or neuropathy requiring treatment), and macrovascular disease (uncontrolled arterial hypertension, uncontrolled coronary artery disease, congestive heart failure, history of cerebrovascular event, seizure disorder, syncope, adrenal insufficiency, neurologic disease or atrial fibrillation) within the 12 months prior to enrollment.
7. Hospitalization for acute pancreatitis within the 2 months prior to enrollment or currently suffering acute inflammation.
8. Have been enrolled or currently participating in other clinical trials within the 3 months prior to enrollment.
9. Patients who refused to participate in the study

Where this trial is running

Shanghai, Shanghai

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Chronic PancreatitisPancreatogenic Type 3C Diabetes MellitusDiabetes MellitusOral Glucose Tolerance Test
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.