A Study on the Changes of Glucose Metabolism and Exocrine Function in Patients With Chronic Pancreatitis

Inclusion Criteria: * 1\. Male or female Chinese subjects aged 18 years or older; 2. Patients with a clear diagnosis of chronic pancreatitis; 3. Glycated hemoglobin (HbA1c) levels between 4% and 6%; 4. FE-1 \< 100 µg/g. Exclusion Criteria: * 1\. A history of diabetes or prediabetes, or preoperative glycated hemoglobin (HbA1c) ≥ 6.0% or fasting venous glucose ≥ 6.1 mmol/L; 2. Positive for islet-related antibodies; 3. Patients who are currently receiving or have previously received pancreatic enzyme replacement therapy (PERT); 4. Allergy to the components of PERT drugs; 5. Exocrine pancreatic insufficiency (EPI) caused by other reasons, such as post-gastrectomy or post-intestinal resection; 6. Undergoing pancreatic surgery other than endoscopic retrograde cholangiopancreatography (ERCP); 7. Renal disease of stage G3, G4, or G5; 8. Decompensated chronic liver disease; 9. Receiving glucocorticoid therapy; 10. Pregnant or breastfeeding women; 11. Patients with malignant tumors.