EPI

Spotlight article

PERT Dosing: Symptom Relief Isn’t Enough

This systematic review evaluated real-world pancreatic enzyme replacement therapy (PERT) dosing in adults with pancreatic exocrine insufficiency (PEI) and compared those doses with clinical guideline recommendations. Across 30 observational studies including 3818 patients, PERT dosing varied widely by condition, including chronic pancreatitis, pancreatic cancer, post-pancreatectomy status, and other causes of PEI. The review found that average real-world PERT doses were lower than European guideline recommendations in 40% of studies. Lower-than-recommended doses often improved gastrointestinal symptoms such as diarrhea, steatorrhea, bloating, abdominal pain, and weight loss, but they were generally less reliable for improving or maintaining nutritional status.

 

The authors emphasize that symptom improvement alone may not be enough to judge whether PERT is adequately dosed. While doses below 40,000 lipase units per meal may help patients feel better, they may still leave patients at risk for malabsorption, malnutrition, vitamin deficiencies, and other complications. Guideline-level dosing, generally 40,000-50,000 lipase units per meal or higher when needed, was more consistently associated with nutritional benefit. The review concludes that PERT dosing should be individualized based on symptoms, diet, disease severity, residual pancreatic function, formulation, timing, adherence, and nutritional markers, with the goal of improving both GI symptoms and nutritional status.

 

Reference: Kadaj-Lipka R, Monica M, Stożek-Tutro A, Ryś P, Rydzewska G. Pancreatic Enzyme Replacement Therapy in Pancreatic Exocrine Insufficiency-Real-World's Dosing and Effectiveness: A Systematic Review. Dig Dis Sci. 2025 Jul;70(7):2270-2284. doi: 10.1007/s10620-025-09011-0. Epub 2025 Apr 1. PMID: 40169459; PMCID: PMC12296877.

Kathleen Ferrell

DMSc, MPAS, PA-C

Physician Associate, University of North Carolina, Chapel Hill

Featured article

EPI Care Gaps: Can EMR Alerts Help?

This retrospective cohort study evaluated whether an electronic medical record (EMR) best practice alert and smart set could improve diagnosis and management of exocrine pancreatic insufficiency (EPI) in high-risk patients, including those with chronic pancreatitis, pancreatic ductal adenocarcinoma, prior pancreatic resection, or EPI. Before implementation, the study identified multiple care gaps: only 57.2% of eligible patients were prescribed pancreatic enzyme replacement therapy, and among those receiving enzymes, only 61.9% were on a minimum therapeutic dose. Screening and monitoring were also inconsistent, with relatively low ordering rates for pancreatic elastase, vitamin D, A1c, DEXA scans, and documentation of metabolic bone disease.

 

After the best practice alert and smart set were implemented, the proportion of patients on a minimum therapeutic enzyme dose increased significantly, along with ordering of pancreatic elastase, vitamin D testing and supplementation, A1c, DEXA scans, and recognition of metabolic bone disease. However, the overall proportion of patients prescribed enzymes did not change, likely because the alert was limited to patients already on pancreatic enzyme replacement therapy (PERT) or when PERT was being prescribed, meaning some high-risk undiagnosed patients were missed. The authors conclude that EMR-based tools can be a low-cost, durable way to improve EPI care patterns, but further work is needed to improve earlier diagnosis, broader screening, and optimized treatment in high-risk groups.

 

Reference: Ladna M, Madhok I, Bhat A, et al. Impact of Order Set on Exocrine Pancreatic Insufficiency in Chronic Pancreatitis, Pancreatic Cancer, and Pancreatic Resection. Gastro Hep Adv. 2024 Aug 30;4(1):100541. doi: 10.1016/j.gastha.2024.08.019. PMID: 39790244; PMCID: PMC11713485.

Priyanca Waghmarae

PA-C

EPI: Confirm Before Starting PERT

This review explains how exocrine pancreatic dysfunction (EPD) exists on a spectrum, with the more severe form classified as exocrine pancreatic insufficiency (EPI). Because steatorrhea may not become clinically apparent until more than 90% of pancreatic enzyme-producing capacity is lost, milder EPD may present with nonspecific symptoms such as bloating and flatulence. The authors emphasize that suspected EPD can present in a wide range of ways and that non-pancreatic causes should be considered in the differential diagnosis, including celiac disease, Crohn’s disease, gastric/foregut surgery, diabetes mellitus, cholestatic disorders, medications, infections, and bacterial overgrowth. FE-1 is commonly used in evaluation, but results should be interpreted cautiously, particularly with watery stool and in patients with low pre-test probability.

 

Management depends on confirming the severity and cause of EPD. Patients with confirmed EPI generally need pancreatic enzyme replacement therapy (PERT), typically taken with meals and titrated based on symptoms, dietary fat/protein intake, and evidence of malabsorption. The review highlights practical pitfalls, including under-testing high-risk patients, prescribing PERT without confirming EPI, poor timing of enzymes with meals, inadequate dose titration, and anchoring on a low fecal elastase result without considering false lows or non-pancreatic causes. It also notes key clinical clues, such as fat-soluble vitamin deficiencies or calcium oxalate kidney stones, which may suggest severe fat malabsorption or undertreated EPI. Overall, the article argues for more accurate diagnosis, thoughtful differential assessment, and individualized PERT use rather than reflexive lifelong enzyme therapy for every patient with GI symptoms.

 

Reference: Ramsey ML, Hart PA, Forsmark CE. Evaluation and management of exocrine pancreatic insufficiency: pearls and pitfalls. Curr Opin Gastroenterol. 2023 Sep 1;39(5):428-435. doi: 10.1097/MOG.0000000000000951. Epub 2023 May 11. PMID: 37530731; PMCID: PMC10403264.

Kathleen Ferrell

DMSc, MPAS, PA-C

PERT Dose May Matter in Pancreatic Cancer

This retrospective population-based study examined whether pancreatic enzyme replacement therapy (PERT) dosing was associated with skeletal muscle loss during first-line chemotherapy in patients with advanced pancreatic cancer. Among 210 patients in Alberta, Canada, 81 were PERT users and were categorized as low or high dose based on estimated consumed daily dose. Muscle loss was common overall, but it was highest in the low-dose PERT group: 88% experienced CT-defined skeletal muscle loss, compared with 58% in the high-dose PERT group and 67% in the no-PERT group. After adjustment for disease stage, chemotherapy regimen, and tumor response, low-dose PERT was associated with 5.4-fold greater odds of muscle loss compared with high-dose PERT.

 

The findings suggest that undertreated exocrine pancreatic insufficiency (EPI) may contribute to muscle loss in advanced pancreatic cancer and that simply prescribing PERT may not be enough if the dose is too low or not used consistently. Patients in the low-dose group were initially prescribed lower doses, consumed less than prescribed, and were less likely to refill their prescriptions. Higher-dose users appeared better able to preserve skeletal muscle at rates closer to patients without clinical indications for EPI. The authors conclude that adequate PERT dosing, patient support, and provider education should be prioritized when EPI is suspected, while future prospective studies should measure actual PERT use, symptoms, intake, quality of life, and barriers to optimal dosing.

 

Reference: Klassen PN, Mazurak VC, Baracos V, et al. Dose optimization of pancreatic enzyme replacement therapy is essential to mitigate muscle loss in patients with advanced pancreatic cancer and exocrine pancreatic insufficiency. Clin Nutr. 2024 Aug;43(8):1900-1906. doi: 10.1016/j.clnu.2024.06.037. Epub 2024 Jul 4. PMID: 38991415. 

Andrew James Kester

MSN, APRN, FNP-C

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