Early Clinical Experience with Simvastatin for Treating Pain in Patients with Idiopathic Chronic Pancreatitis

Introduction: Chronic Pancreatitis (CP) is a progressive inflammatory disorder characterised by recurrent episodes of severe abdominal pain. Experimental studies demonstrated protective effects of statins in pancreatic fibrosis. Aim: To assess impact of simvastatin therapy on the severity of pain in patients with idiopathic CP or recurrent acute pancreatitis. Materials and Methods: This prospective, single centre and open-label study included patients with idiopathic CP and recurrent acute pancreatitis, depending upon inclusion and exclusion criteria. Patients were treated with either simvastatin (40 mg per day) (Group-A; n=25) or standard therapy (proton-pump inhibitor and antioxidant therapy) (Group-B; n=25). Severity of the pain was assessed using a Visual Analogue Score (VAS) at the start of treatment and at 12-month of treatment. Results: Between June 2017 and August 2017, a total of 50 patients, age ranging from 18 years to 54 years, were included in the study. The study population predominantly included male patients (n=38). The intensity of pain in patients of Group-A reduced significantly (p=0.0001) from 8 (range 6-10) at baseline to 2 (range 0-9) after 12 months of the treatment. There was significant reduction in the intensity of pain in Group-B also (7 (range 6-10) at baseline vs. 5 (range 0-7); p=0.0001). However, the reduction of VAS score was significantly higher in Group-A as compared to Group-B at 12-month follow-up {6 (range-1-8) vs. 3 (range 0-6); p=0.032). Conclusion: Simvastatin treatment improved severity of pain in patients with CP or recurrent acute pancreatitis at 12-month follow-up. However, large randomised trials are needed to replicate these findings.