Zenpep

1 INDICATIONS AND USAGE ZENPEP ® is indicated for the treatment of exocrine pancreatic insufficiency in adult and pediatric patients. ZENPEP ® is indicated for the treatment of exocrine pancreatic insufficiency in adult and pediatric patients. ( 1 )

2 DOSAGE AND ADMINISTRATION Important Dosing Information ( 2.1 ) ZENPEP is a mixture of enzymes including lipases, proteases, and amylases and dosing is based on lipase units. Dosing scheme based on actual body weight or fat ingestion. Individualize the dosage based on clinical symptoms, the degree of steatorrhea present, and the fat content of the diet. Do not exceed 2,500 lipase units/kg/meal, 10,000 lipase units/kg/day, or 4,000 lipase units/g fat ingested/day in adult and pediatric patients greater than 12 months of age without further investigation. ( 5.1 ) The total daily dosage in adult and pediatric patients greater than 12 months of age should reflect approximately three meals plus two or three snacks per day. With each snack, administer approximately half the prescribed dose for a meal. Do not substitute other pancreatic enzyme products for ZENPEP. When switching from another pancreatic enzyme product to ZENPEP, monitor patients for clinical symptoms of exocrine pancreatic insufficiency and titrate the dosage as needed. Recommended Dosage ( 2.2 ) Adult and Pediatric Patients Greater than 12 Months : The recommended initial starting dosage is: 500 lipase units/kg/meal for adult and pediatric patients 4 years of age and older. 1,000 lipase units/kg/meal for pediatric patients greater than 12 months of age to less than 4 years of age. Titrate to either 2,500 lipase units/kg/meal, 10,000 lipase units/kg/day, or 4,000 lipase units/g fat ingested/day. Higher dosages may be administered if documented effective by fecal fat measures or improvement in malabsorption. Pediatric Patients Birth to 12 Months: The recommended dosage is 3,000 lipase units (one capsule) per 120 mL of formula or per breastfeeding. Preparation and Administration Instructions ( 2.3 ) Swallow capsules whole. For patients unable to swallow intact capsule(s), the capsule contents may be sprinkled on soft acidic food (e.g., applesauce, bananas, pears). Do not crush or chew ZENPEP capsules or capsule contents. Consume sufficient liquids to ensure complete swallowing of ZENPEP. ( 5.2 ) See the full prescribing information for additional information on administering to pediatric patients birth to 12 months. ( 2.3 ) 2.1 Important Dosing Information ZENPEP is a mixture of enzymes including lipases, proteases, and amylases. ZENPEP dosing is based on lipase units. Use either an actual body weight or fat ingestion-based dosing scheme. Start at the lowest recommended dosage and individualize the dosage based on clinical symptoms, the degree of steatorrhea present, and the fat content of the diet. Changes in dosage may require an adjustment period of several days. Do not exceed 2,500 lipase units/kg/meal, 10,000 lipase units/kg/day, or 4,000 lipase units/g fat ingested/day in adult and pediatric patients greater than 12 months of age without further investigation [see Warnings and Precautions (5.1) ] . The total daily dosage in adult and pediatric patients greater than 12 months of age should reflect approximately three meals plus two or three snacks per day. With each snack, administer approximately half the prescribed ZENPEP dose for a meal. Do not substitute other pancreatic enzyme products for ZENPEP. When switching from another pancreatic enzyme product to ZENPEP, monitor patients for clinical symptoms of exocrine pancreatic insufficiency and titrate the dosage as needed. 2.2 Recommended Dosage Adult and Pediatric Patients Greater than 12 Months of Age The recommended oral initial starting dosage is: 500 lipase units/kg/meal for adult and pediatric patients 4 years of age and older. 1,000 lipase units/kg/meal for pediatric patients greater than 12 months of age to less than 4 years of age. If signs and symptoms of malabsorption persist, increase the dosage. Titrate to either 2,500 lipase units/kg/meal, 10,000 lipase units/kg/day, or less than 4,000 lipase units/grams of fat ingested/day. Higher dosages may be administered if they are documented to be effective b …

3 DOSAGE FORMS AND STRENGTHS Delayed-release capsules are available in the following strengths: 3,000 USP units of lipase; 10,000 USP units of protease; and 14,000 USP units of amylase in a two‐piece hypromellose capsule with a white opaque cap and white opaque body, and red imprint with "APTALIS 3" 5,000 USP units of lipase; 17,000 USP units of protease; and 24,000 USP units of amylase in a two‐piece hypromellose capsule with a white opaque cap and white opaque body, and blue imprint with "APTALIS 5" 10,000 USP units of lipase; 32,000 USP units of protease; and 42,000 USP units of amylase in a two-piece hypromellose capsule with a yellow opaque cap and white opaque body, and blue imprint with "APTALIS 10" 15,000 USP units of lipase; 47,000 USP units of protease; and 63,000 USP units of amylase in a two-piece hypromellose capsule with a red opaque cap and white opaque body, and blue imprint with "APTALIS 15" 20,000 USP units of lipase; 63,000 USP units of protease; and 84,000 USP units of amylase in a two-piece hypromellose capsule with a green opaque cap and white opaque body, and blue imprint with "APTALIS 20" 25,000 USP units of lipase; 79,000 USP units of protease; and 105,000 USP units of amylase in a two-piece hypromellose capsule with a blue opaque cap and white opaque body, and blue imprint with "APTALIS 25" 40,000 USP units of lipase; 126,000 USP units of protease; and 168,000 USP units of amylase in a two-piece hypromellose capsule with an orange opaque cap and white opaque body, and blue imprint with "APTALIS 40" 60,000 USP units of lipase; 189,600 USP units of protease; 252,600 USP units of amylase. Capsules have a powder blue opaque cap with two black stripes and white opaque body, black imprint with "APTALIS 60 " Delayed-Release Capsules ( 3 ): 3,000 USP units of lipase; 10,000 USP units of protease; and 14,000 USP units of amylase 5,000 USP units of lipase; 17,000 USP units of protease; and 24,000 USP units of amylase 10,000 USP units of lipase; 32,000 USP units of protease; and 42,000 USP units of amylase 15,000 USP units of lipase; 47,000 USP units of protease; and 63,000 USP units of amylase 20,000 USP units of lipase; 63,000 USP units of protease; and 84,000 USP units of amylase 25,000 USP units of lipase; 79,000 USP units of protease; and 105,000 USP units of amylase 40,000 USP units of lipase; 126,000 USP units of protease; and 168,000 USP units of amylase 60,000 USP units of lipase; 189,600 USP units of protease; and 252,600 USP units of amylase

4 CONTRAINDICATIONS None. None ( 4 )

6 ADVERSE REACTIONS The following serious or otherwise important adverse reactions are described elsewhere in the labeling: Fibrosing Colonopathy [see Warnings and Precautions (5.1) ] Irritation of the Oral Mucosa [see Warnings and Precautions (5.2) ] Hyperuricemia [see Warnings and Precautions (5.3) ] Risk of Viral Transmission [see Warnings and Precautions (5.4) ] Hypersensitivity Reactions [see Warnings and Precautions (5.5) ] Most common adverse reactions (≥6%) are: headache, contusion, cough, and early satiety. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Aimmune Therapeutics, Inc at 1-833-AIM2KNO (1-833-246-2566) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to the rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. The data described below reflect exposure to ZENPEP in 53 adult and pediatric patients with exocrine pancreatic insufficiency due to cystic fibrosis in two clinical trials conducted [see Clinical Studies (14) ] . In both trials, ZENPEP was administered at dosages of approximately 5,000 lipase units/kg/day for 19 to 42 days. Study 1 was a randomized, double-blind, placebo-controlled, crossover study of 34 adult and pediatric patients, aged 7 to 23 years. Adverse reactions that were reported in at least 2 ZENPEP-treated patients (greater than or equal to 6%) and at a higher rate than in placebo-treated patients in Study 1 are shown in Table 1. Table 1: Adverse Reactions Reported in at least 2 ZENPEP-treated patients (greater than or equal to 6%) and at a higher rate than placebo-treated patients. in a Clinical Trial of Adult and Pediatric Patients 7 Years of Age and Older with Exocrine Pancreatic Insufficiency due to Cystic Fibrosis (Study 1) Adverse Reaction ZENPEP N=34 n (%) Placebo N=32 n (%) Headache 5 (15%) 0 Contusion 2 (6%) 0 Cough 2 (6%) 0 Early Satiety 2 (6%) 0 Study 2 was an open-label, uncontrolled study of ZENPEP in 19 pediatric patients aged 1 to 6 years. The most commonly reported adverse reactions were gastrointestinal, including abdominal pain and steatorrhea. The type and incidence of adverse reactions in Studies 1 and 2 were similar between pediatric patients and adults. 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of ZENPEP or other pancreatic enzyme products. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Eye Disorders blurred vision Gastrointestinal Disorders fibrosing colonopathy and distal intestinal obstruction syndrome abdominal distension, abdominal pain, diarrhea, flatulence, constipation, and nausea Immune System Disorders anaphylaxis, asthma, hives and pruritis Investigations asymptomatic elevations of liver enzymes Musculoskeletal System myalgia, muscle spasm Skin and Subcutaneous Tissue Disorders urticaria and rash

8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary Published data from case reports with pancrelipase use in pregnant women have not identified a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes. Pancrelipase is minimally absorbed systematically; therefore, maternal use is not expected to result in fetal exposure to the drug. Animal reproduction studies have not been conducted with pancrelipase. The background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. 8.2 Lactation Risk Summary There are no data on the presence of pancrelipase in either human or animal milk, the effects on the breastfed infant or the effects on milk production. Pancrelipase is minimally absorbed systemically following oral administration, therefore maternal use is not expected to result in clinically relevant exposure of breastfed infants to the drug. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for ZENPEP and any potential adverse effects on the breastfed infant from ZENPEP or from the underlying maternal conditions. 8.4 Pediatric Use The safety and effectiveness of ZENPEP for the treatment of exocrine pancreatic insufficiency have been established in pediatric patients. Use of ZENPEP for this indication is supported by an adequate and well-controlled trial in adult and pediatric patients 7 to 17 years of age (Study 1) along with supportive data from an open-label, single arm study in 19 pediatric patients 1 to 6 years of age (Study 2). Both study populations consisted of patients with exocrine pancreatic insufficiency due to cystic fibrosis. The safety in pediatric patients in Studies 1 and 2 were similar to that observed in adult patients [see Adverse Reactions (6.1) and Clinical Studies (14) ]. Dosages exceeding 6,000 lipase units/kg/meal have been reported postmarketing to be associated with fibrosing colonopathy and colonic strictures in pediatric patients less than 12 years of age. If there is a history of fibrosing colonopathy, monitor patients during treatment with ZENPEP because some patients may be at risk of progressing to stricture formation. Do not exceed the recommended dosage of either 2,500 lipase units/kg/meal, 10,000 lipase units/kg/day, or 4,000 lipase units/g fat ingested/day in pediatric patients greater than 12 months of age without further investigation . [see Dosage and Administration (2.2) and Warnings and Precautions (5.1) ] . Crushing or chewing ZENPEP capsules or mixing the capsule contents in foods having a pH greater than 4.5 can disrupt the protective enteric coating on the capsule contents and result in early release of enzymes, irritation of the oral mucosa, and/or loss of enzyme activity. Instruct the patient or caregiver of the following: consume sufficient liquids (juice, water, breast milk, or formula) to ensure complete swallowing, and visually inspect the mouth of pediatric patients less than 12 months of age to ensure that no drug is retained in the mouth and irritation of the oral mucosa has not occurred [see Dosage and Administration (2.3) and Warnings and Precautions (5.2) ] . 8.5 Geriatric Use Clinical studies of ZENPEP did not include sufficient numbers of patients aged 65 years and over to determine whether they respond differently from younger patients. Other reported clinical experience has not identified differences in responses between patients aged 65 years and over and younger adult patients.

12.1 Mechanism of Action Pancreatic enzyme products contain a mixture of lipases, proteases, and amylases that catalyze the hydrolysis of fats to monoglycerides, glycerol, and free fatty acids, protein into peptides and amino acids, and starch into dextrins and short chain sugars such as maltose and maltriose in the duodenum and proximal small intestine, thereby acting like digestive enzymes physiologically secreted by the pancreas.

11 DESCRIPTION Pancrelipase is a pancreatic enzyme product consisting of a mixture of enzymes including lipases, proteases, and amylases, and is an extract derived from porcine pancreatic glands. The enteric-coated pellets in ZENPEP are formulated to release pancreatic enzymes at an approximate pH of 5.5 or greater. ZENPEP (pancrelipase) delayed-release capsule for oral administration, include a two-piece shell containing light brown-colored enteric-coated pellets (1 . 8 to 1.9mm for 3,000 and 5,000 USP units of lipase, 2 . 2 to 2.5 mm for 10,000, 15,000, 20,000, 25,000, 40,000 and 60,000 USP units of lipase) and are available as follows: 3,000 USP units of lipase; 10,000 USP units of protease; and 14,000 USP units of amylase; delayed-release capsules have a white opaque cap and a white opaque body with imprint "APTALIS 3". The shells contain carnauba wax or talc, carrageenan, hypromellose, potassium chloride, titanium oxide, and water. The colorant of the printed ink is red iron oxide. 5,000 USP units of lipase; 17,000 USP units of protease; and 24,000 USP units of amylase; delayed-release capsules have a white opaque cap and a white opaque body with imprint "APTALIS 5". The shells contain carnauba wax or talc, carrageenan, hypromellose, potassium chloride, titanium oxide, and water. The colorant of the printed ink is FD&C Blue 2. 10,000 USP units of lipase; 32,000 USP units of protease; and 42,000 USP units of amylase; delayed-release capsules have a yellow opaque cap and a white opaque body with imprint "APTALIS 10". The shells contain carnauba wax or talc, carrageenan, hypromellose, potassium chloride, titanium oxide, water and yellow ferric oxide. The colorant of the printed ink is FD&C Blue 2. 15,000 USP units of lipase; 47,000 USP units of protease; and 63,000 USP units of amylase; delayed-release capsules have a red opaque cap and a white opaque body with imprint "APTALIS 15". The shells contain carnauba wax or talc, carrageenan, hypromellose, potassium chloride, red ferric oxide, titanium oxide, and water. The colorant of the printed ink is FD&C Blue 2. 20,000 USP units of lipase; 63,000 USP units of protease; and 84,000 USP units of amylase; delayed-release capsules have a green opaque cap and a white opaque body with imprint "APTALIS 20". The shells contain carnauba wax or talc, carrageenan, FD&C Blue #2, hypromellose, potassium chloride, titanium oxide, water, and yellow ferric oxide. The colorant of the printed ink is FD&C Blue 2. 25,000 USP units of lipase; 79,000 USP units of protease; and 105,000 USP units of amylase; delayed-release capsules have a blue opaque cap and a white opaque body with imprint "APTALIS 25". The shells contain carnauba wax or talc, carrageenan, FD&C Blue #2, hypromellose, potassium chloride, titanium oxide, and water. The colorant of the printed ink is FD&C Blue 2. 40,000 USP units of lipase; 126,000 USP units of protease; and 168,000 USP units of amylase; delayed-release capsules have an orange opaque cap and white opaque body, printed with "APTALIS 40". The shells contain FD&C Yellow #6, hypromellose, and titanium oxide. The colorant of the printed ink is FD&C Blue 2. 60,000 USP units of lipase; 189,600 USP units of protease; 252,600 USP units of amylase. Capsules have a powder blue opaque cap with two black stripes and white opaque body, printed with "APTALIS 60 " The shells contain FD&C Blue #1, hypromellose, and titanium oxide. The colorant of the printed ink is black iron oxide. ZENPEP (pancrelipase) delayed-release capsules include the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hydrogenated castor oil, hypromellose phthalate, magnesium stearate, microcrystalline cellulose, talc, and triethyl citrate.

10 OVERDOSAGE Chronic high dosages of pancreatic enzyme products have been associated with fibrosing colonopathy and colonic strictures [see Warnings and Precautions (5.1) ] . High dosages of pancreatic enzyme products have been associated with hyperuricosuria and hyperuricemia [see Warnings and Precautions (5.3) ] .

16 HOW SUPPLIED/STORAGE AND HANDLING ZENPEP (pancrelipase) delayed-release capsules containing light, brown-colored delayed-release pancrelipase are supplied as follows: Strength Description Supplied As NDC Number 3,000 USP units of lipase; 10,000 USP units of protease; 14,000 units of amylase two-piece hypromellose capsule with white opaque cap and white body with a red radial print and printed with "APTALIS 3" Bottles of 100 73562-113-01 5,000 USP units of lipase; 17,000 USP units of protease; 24,000 units of amylase two-piece hypromellose capsule with a white opaque cap and white body with a blue radial print and printed with "APTALIS 5" Bottles of 100 73562-115-01 10,000 USP units of lipase; 32,000 units of protease; 42,000 units of amylase two-piece hypromellose capsule with a yellow opaque cap and white body with a blue radial print and printed with "APTALIS 10" Bottles of 100 73562-110-01 15,000 USP units of lipase; 47,000 units of protease; 63,000 units of amylase two-piece hypromellose capsule with a red opaque cap and white body with a blue radial print and printed with "APTALIS 15" Bottles of 100 73562-111-01 20,000 USP units of lipase; 63,000 units of protease; 84,000 units of amylase two-piece hypromellose capsule with a green opaque cap and white body with a blue radial print and printed with "APTALIS 20" Bottles of 100 73562-112-01 25,000 USP units of lipase; 79,000 units of protease; 105,000 units of amylase two-piece hypromellose capsule with a blue opaque cap and white body with a blue radial print and printed with "APTALIS 25" Bottles of 100 73562-116-01 40,000 USP units of lipase; 126,000 units of protease; 168,000 units of amylase two-piece hypromellose capsule with an orange opaque cap and white body with a blue radial print and printed with "APTALIS 40" Bottles of 100 73562-114-01 60,000 USP units of lipase; 189,600 units of protease; 252,600 units of amylase two-piece hypromellose capsule with powder blue opaque cap with two black stripes and white body with a black radial print and printed with "APTALIS 60 " Bottles of 100 73562-117-01 Storage and Handling Original container: Store at room temperature, 20°C to 25°C (68°F to 77°F) and protect from moisture. Brief excursions permitted to 15°C to 40°C (59°F to104°F) for 24 hours. After opening, keep bottle tightly closed between uses to protect from moisture. Zenpep is supplied in bottles containing a desiccant. Repackaged HDPE container: Dispense in tight container (USP). Store at up to 30°C (86°F) for up to 6 months and protect from moisture. Brief excursions permitted to 15°C to 40°C (59°F to 104°F) for up to 30 days. Protect from moisture. After opening, keep bottle tightly closed between uses to protect from moisture.