Creon Dosing for Infants with Cystic Fibrosis
For infants with cystic fibrosis up to 12 months of age, start Creon at 2,000-4,000 units of lipase per 120 mL of formula or estimated breast milk intake, and approximately 2,000 units of lipase per gram of dietary fat in solid foods. 1
Initial Dosing Strategy
- Begin pancreatic enzyme replacement therapy (PERT) immediately upon diagnosis of pancreatic insufficiency, which occurs in 85-90% of CF patients and often evolves during the first year of life 1
- The recommended starting dose is 2,000-4,000 units of lipase per 120 mL of formula or breast milk for liquid feeds 1
- For solid foods introduced at the appropriate age, use approximately 2,000 units of lipase per gram of dietary fat 1
- Never exceed 10,000 units of lipase/kg per day as the maximum dose to avoid fibrosing colonopathy 1, 2
Administration Technique
- Open the capsule and mix the enteric-coated microspheres with a small amount of expressed breast milk or formula on a spoon 1
- If the infant refuses microspheres from a spoon, administration with an acidic puree (e.g., applesauce) may be successful 1
- Never add pancreatic enzymes directly to the infant's feed bottle as this can inactivate the enzymes 1
- If microspheres are still refused, unprotected powder enzymes may temporarily be considered with addition of a proton pump inhibitor to prevent gastric acid destruction 1
Monitoring and Dose Titration
- Monitor growth and nutritional status at every clinic visit for infants to determine adequacy of PERT 1
- Titrate the dose upward as needed based on clinical response, including stool consistency, frequency, and weight gain 1
- Research demonstrates that 500 units of lipase/kg/meal resulted in a coefficient of fat absorption of approximately 89% in infants 6-30 months old, and higher doses did not significantly improve absorption 3
- Enteric-coated microspheres are more effective than enteric-coated tablets and are preferred by parents 1
Critical Safety Considerations
- Avoid doses exceeding 10,000 units of lipase/kg per day due to the strong association with fibrosing colonopathy in young children 1, 2
- The risk of fibrosing colonopathy increases dramatically with doses above 24,000 units/kg/day, with a relative risk of 199.5 for doses exceeding 50,000 units/kg/day 2
- Smaller enzyme preparations specifically designed for infants (such as Creon for Children with 5,000 lipase units per scoop) improve ease of dosing and are preferred by caregivers 4
Common Pitfalls to Avoid
- Do not delay PERT initiation even in breastfed infants, as up to 80% of dietary fat may be excreted without enzyme supplementation 1, 4
- Do not use high-energy or hydrolyzed formulas routinely unless there is poor growth or malabsorption unrelated to CF 1
- Do not assume adequate dosing without monitoring—some infants may have suboptimal fat absorption despite enzyme therapy and require dose adjustment 4, 3
- If gastrointestinal symptoms persist despite appropriate PERT, consider adding a proton pump inhibitor to improve enzyme effectiveness rather than simply increasing the enzyme dose 1