Colesevelam hydrochloride

Dosage and Administration ( 2.1 ) 05/2020 Warnings and Precautions ( 5.1 ) 05/2020

1 INDICATIONS & USAGE Colesevelam hydrochloride is a bile acid sequestrant indicated as an adjunct to diet and exercise to: reduce elevated low-density lipoprotein cholesterol (LDL-C) in adults with primary hyperlipidemia ( 1.1 ). reduce LDL-C levels in boys and postmenarchal girls, 10 to 17 years of age, with heteroz ygous familial hypercholesterolemia (HeFH) ( 1.1 ). Limitations of Use ( 1.3 ): Do not use for treatment of type 1 diabetes or for diabetic ketoacidosis. The effect on cardiovascular morbidity and mortality has not been determined. Not studied in type 2 diabetes with a dipeptidyl peptidase 4 inhibitor. Not studied in Fredrickson Type I, III, IV, and V dyslipidemias. Not studied in children less than 10 years of age or in premenarchal girls. 1.1 Primary Hyperlipidemia Colesevelam hydrochloride for oral suspension is indicated as an adjunct to diet and exercise to reduce elevated low-density lipoprotein cholesterol (LDL-C) in adults with primary hyperlipidemia Colesevelam hydrochloride for oral suspension is indicated to reduce LDL-C levels in boys and postmenarchal girls, 10 to 17 years of age, with heterozygous familial hypercholesterolemia (HeFH) who are unable to reach LDL-C target levels despite an adequate trial of dietary therapy and lifestyle modification. 1.3 Limitations of Use Colesevelam hydrochloride should not be used for the treatment of type 1 diabetes or for the treatment of diabetic ketoacidosis. The effect of colesevelam hydrochloride on cardiovascular morbidity and mortality has not been determined. Colesevelam hydrochloride has not been studied in type 2 diabetes in combination with a dipeptidyl peptidase 4 inhibitor. Colesevelam hydrochloride has not been studied in Fredrickson Type I, III, IV, and V dyslipidemias. Colesevelam hydrochloride has not been studied in children younger than 10 years of age or in premenarchal girls.

2 DOSAGE AND ADMINISTRATION • Obtain lipid parameters, including serum triglyceride (TG) levels, before starting colesevelam hydrochloride for oral suspension ( 2.1 ). • The recommended dosage for adults and for boys and postmenarchal girls aged 10 to 17 years with primary hyperlipidemia is 3.75 grams daily or one 1.875 grams packet twice daily. The recommended dosage for adults with type 2 diabetes mellitus is 3.75 grams daily or one 1.875 grams packet twice daily. Colesevelam hydrochloride for oral suspension should be taken as follows ( 2.2 , 2.4 ): For Oral Suspension Take one 3.75 grams packet once daily or one 1.875 grams packet twice daily with a meal. To prepare, empty the entire contents of one packet into the glass or cup. Add 1⁄2 cup to 1 cup of water, fruit juice, or diet soft drinks. Stir well and drink. 2.1 Testing Prior to Initiation of Colesevelam Hydrochloride for Oral Suspension Obtain lipid parameters, including triglyceride (TG) levels, before starting colesevelam hydrochloride for oral suspension. Colesevelam hydrochloride for oral suspension is contraindicated in patients with TG levels >500 mg/dL [see Contraindications ( 4 ) and Warnings and Precautions ( 5.1 )] . 2.2 Recommended Dosage in Primary Hyperlipidemia and Type 2 Diabetes Mellitus The recommended dosage of colesevelam hydrochloride for oral suspension for adults and for boys and postmenarchal girls aged 10 to 17 years with primary hyperlipidemia is 3.75 grams daily or one 1.875 grams packet twice daily. The recommended dosage of colesevelam hydrochloride for oral suspension for adults with type 2 diabetes mellitus is 3.75 grams daily or one 1.875 grams packet twice daily. Colesevelam hydrochloride for oral suspension should be taken as follows: For Oral Suspension 1.875 gm – Take one packet twice daily 3.75 gm - Take one packet once daily. 2.3 Important Dosing Information for Primary Hyperlipidemia Colesevelam hydrochloride for oral suspension can be dosed at the same time as a statin, or colesevelam hydrochloride for oral suspension and the statin can be dosed apart . Monitor lipid levels within 4 to 6 weeks after initiation of colesevelam hydrochloride for oral suspension. 2.4 Administration Instructions For Oral Suspension To prepare, empty the entire contents of one packet into a glass or cup. Add 1⁄2 to 1 cup (4 to 8 ounces) of water, fruit juice, or diet soft drinks. Stir well and drink. Take colesevelam hydrochloride for oral suspension with meals. Do not take colesevelam hydrochloride for oral suspension in its dry form. Due to tablet size, colesevelam hydrochloride for oral suspension is recommended for use in the pediatric population.

3 DOSAGE FORMS AND STRENGTHS • Colesevelam hydrochloride for oral suspension: Citrus flavored, off-white to yellow granular powder packaged in single-dose packets: 3.75 gram single-dose packet, 1.875 gram single-dose packet. • For Oral Suspension: 3.75 gram packet,1.875 gram packet ( 3 )

4 CONTRAINDICATIONS Colesevelam hydrochloride for oral suspension is contraindicated in patients with: • Serum TG concentrations >500 mg/dL [see Warnings and Precautions ( 5.1 )] • History of hypertriglyceridemia-induced pancreatitis [see Warnings and Precautions ( 5.1 )] • A history of bowel obstruction [see Warnings and Precautions ( 5.2 )] • Patients with serum triglyceride levels >500 mg/dL ( 4 ) • Patients with a history of hypertriglyceridemia-induced pancreatitis ( 4 ) • Patients with a history of bowel obstruction ( 4 )

6 ADVERSE REACTIONS The following important adverse reactions are described below and elsewhere in the labeling: • Hypertriglyceridemia and Pancreatitis [see Warnings and Precautions ( 5.1 )] • Gastrointestinal Obstruction [see Warnings and Precautions ( 5.2 )] • Vitamin K or Fat-Soluble Vitamin Deficiencies [see Warnings and Precautions ( 5.3 )] In clinical trials, the most common (incidence ≥2% and greater than placebo) adverse reactions with colesevelam hydrochloride included constipation, dyspepsia, and nausea ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, contact Glenmark Pharmaceuticals Inc., USA at 1 (888) 721-7115 or FDA at 1-800-FDA-1088 or http://www.fda.gov/medwatch. 6.1 Clinical Studies Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in clinical studies of another drug and may not reflect the rates observed in practice. Primary Hyperlipidemia In 7 double-blind, placebo-controlled clinical trials, 807 patients with primary hyperlipidemia (age range 18 to 86 years, 50% women, 90% Caucasians, 7% Blacks, 2% Hispanics, 1% Asians) and elevated LDL-C were treated with colesevelam hydrochloride 1.5 g/day to 4.5 g/day from 4 to 24 weeks (total exposure 199 patient-years). Table 1: Clinical Studies of Colesevelam Hydrochloride for Primary Hyperlipidemia: Adverse Reactions Reported in ≥2% of Patients and More Commonly than in Placebo Colesevelam Hydrochloride N = 807 Placebo N = 258 Constipation 11% 7% Dyspepsia 8.3% 3.5% Nausea 4.2% 3.9% Accidental injury 3.7% 2.7% Asthenia 3.6% 1.9% Pharyngitis 3.2% 1.9% Flu syndrome 3.2% 3.1% Rhinitis 3.2% 3.1% Myalgia 2.1% 0.4% Pediatric Patients 10 to 17 Years of Age In an 8-week double-blind, placebo-controlled study, boys and post-menarchal girls, 10 to 17 years of age, with HeFH (n=194), were treated with colesevelam hydrochloride tablets (1.9 to 3.8 g, daily) or placebo tablets . Table 2: Clinical Study of Colesevelam Hydrochloride for Primary Hyperlipidemia in HeFH Pediatric Patients: Adverse Reactions Reported in ≥2% of Patients and More Commonly than in Placebo Colesevelam Hydrochloride N = 129 Placebo N = 65 Nasopharyngitis 6.2% 4.6% Headache 3.9% 3.1% Fatigue 3.9% 1.5% Creatine Phosphokinase Increase 2.3% 0% Rhinitis 2.3% 0% Vomiting 2.3% 1.5% The reported adverse reactions during the additional 18-week open-label treatment period with colesevelam hydrochloride 3.8 g per day were similar to those during the double-blind period and included headache (7.6%), nasopharyngitis (5.4%), upper respiratory tract infection (4.9%), influenza (3.8%), and nausea (3.8%) . Type 2 Diabetes Mellitus In 5 add-on combination and 1 monotherapy double-blind, 12- to 26-week, placebo-controlled clinical trials in patients with type 2 diabetes mellitus, 1022 patients were treated with colesevelam hydrochloride. The mean exposure duration was 20 weeks (total exposure 393 patient-years). Patients were to receive 3.8 grams of colesevelam hydrochloride per day. The mean age of patients was 55.7 years, 52.8 percent of the population was male and 61.9% were Caucasian, 4.8% were Asian, and 15.9% were Black or African American. At baseline the population had a mean hemoglobin A1c (HbA1c) of 8.2%, and 26% had past medical history suggestive of microvascular complications of diabetes. Table 3 shows adverse reactions associated with the use of colesevelam hydrochloride in patients with type 2 diabetes. These adverse reactions were not present at baseline, occurred more commonly on colesevelam hydrochloride than on placebo, and occurred in at least 2% of patients treated with colesevelam hydrochloride. Table 3: Clinical Studies of Colesevelam Hydrochloride for Type 2 Diabetes: Adverse Reactions Reported in ≥2% of Patients and More Commonly than in Placebo Colesevelam Hydrochloride N = 1022 Placebo N = 1010 Constipation 6.5% 2.2% Hypoglycemia 3.4% 3.1% Dyspepsia 2.8% 1% Nausea 2 …

7 DRUG INTERACTIONS Concomitant use with colesevelam hydrochloride may decrease the exposure of the following drugs: Drugs with a narrow therapeutic index (e.g., cyclosporine), phenytoin, thyroid hormone replacement therapy, warfarin, oral contraceptives containing ethinyl estradiol and norethindrone, olmesartan medoxomil, and sulfonylureas (glimepiride, glipizide, glyburide). Administer these drugs 4 hours prior to colesevelam hydrochloride tablets. For patients on warfarin, monitor International Normalized Ratio (INR) frequently during initiation then periodically ( 7.1 ). Concomitant use with colesevelam hydrochloride may increase the exposure of the following drugs: Metformin extended release. Monitor patients glycemic control ( 7.2 ). 7.1 Colesevelam Hydrochloride Drug Interactions that Decrease the Exposure of the Concomitant Medication Table 4 includes a list of drugs that decrease exposure of the concomitant medication when administered concomitantly with colesevelam hydrochloride and instructions for preventing or managing them. Table 4 Colesevelam Hydrochloride Drug Interactions that Decrease the Exposure of the Concomitant Medication Drugs with a Narrow Therapeutic Index Clinical Impact: Concomitant use with colesevelam hydrochloride may decrease the exposure of the narrow therapeutic index drug. In vivo drug interactions studies showed a decrease in exposure of cyclosporine when coadministered with colesevelam hydrochloride [see Clinical Pharmacology ( 12.3 )]. Intervention: Administer the narrow therapeutic index drug at least 4 hours prior to colesevelam hydrochloride. Monitor drug levels when appropriate. Examples: Cyclosporine Phenytoin Clinical Impact: There have been postmarketing reports of increased seizure activity or decreased phenytoin levels in patients receiving phenytoin [see Adverse Reactions ( 6.2 )]. Intervention: Administer phenytoin 4 hours prior to colesevelam hydrochloride. Thyroid Hormone Replacement Therapy Clinical Impact: In vivo drug interactions studies showed a decrease in exposure of levothyroxine when coadministered with colesevelam hydrochloride [see Clinical Pharmacology ( 12.3 )]. There have been postmarketing reports of elevated thyroid-stimulating hormone (TSH) in patients receiving thyroid hormone replacement therapy [see Adverse Reactions ( 6.2 )]. Intervention: Administer thyroid hormone replacement therapy 4 hours prior to colesevelam hydrochloride. Warfarin Clinical Impact: There have been postmarketing reports of reduced INR in patients receiving warfarin therapy [see Adverse Reactions ( 6.2 )]. Intervention: Monitor INR frequently during colesevelam hydrochloride initiation then periodically thereafter. Oral Contraceptives Containing Ethinyl Estradiol and Norethindrone Clinical Impact: In vivo drug interactions studies showed a decrease in exposure of ethinyl estradiol and norethindrone when coadministered with colesevelam hydrochloride [see Clinical Pharmacology ( 12.3 )]. Intervention: Administer oral contraceptives containing ethinyl estradiol and norethindrone 4 hours prior to colesevelam hydrochloride. Olmesartan Medoxomil Clinical Impact: In vivo drug interactions studies showed a decrease in olmesartan medoxomil when coadministered with colesevelam hydrochloride [see Clinical Pharmacology ( 12.3 )]. Intervention: Administer olmesartan medoxomil 4 hours prior to colesevelam hydrochloride. Sulfonylureas Clinical Impact: In vivo drug interactions studies showed a decrease in sulfonylureas when coadministered with colesevelam hydrochloride [see Clinical Pharmacology ( 12.3 )]. Intervention: Administer sulfonylureas 4 hours prior to colesevelam hydrochloride. Examples: Glimepiride, glipizide, and glyburide Oral Vitamin Supplements Clinical Impact: Colesevelam hydrochloride may decrease the absorption of fat-soluble vitamins A, D, E, and K [see Warnings and Precautions ( 5.3 )]. Intervention: Patients on oral vitamin supplementation should take their vitamins at least 4 ho …

8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary Colesevelam hydrochloride is not absorbed systemically following oral administration, and maternal use is not expected to result in fetal exposure to the drug. Limited available data on the use of colesevelam hydrochloride are insufficient to determine a drug-associated risk of major congenital malformations or miscarriage. In animal reproduction studies, no evidence of either maternal or fetal toxicity was found in rats or rabbits exposed to colesevelam hydrochloride during the period of fetal organogenesis at 8 and 5 times, respectively, the maximum recommended human dose (MRHD) of 3.75 g/day, based on body surface area (mg/m 2 ). No adverse effects on offspring survival and development were observed in rats administered 5 times the MRHD (see Data). Colesevelam hydrochloride may decrease the absorption of fat-soluble vitamins [see Warnings and Precautions ( 5.3 )]. There are no data available on the effect of colesevelam hydrochloride on the absorption of fat-soluble vitamins in pregnant women. If the patient becomes pregnant while taking colesevelam hydrochloride, the patient should be advised of the lack of known clinical benefit with continued use during pregnancy. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. In the US 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. Data Human Data There are no adequate and well-controlled studies of colesevelam hydrochloride use in pregnant women. In the postmarketing setting there have been infrequent reports of pregnancy with use of colesevelam hydrochloride and a causal association with congenital anomalies has not been established. Animal Data In pregnant rats given dietary doses of 0.3, 1, 3 g/kg/day colesevelam hydrochloride from gestation days 7 through 17, no teratogenic effects were observed. Exposures at 3 g/kg/day were 8 times the human exposure at 3.75 g/day MRHD, based on body surface area (mg/m 2 ). In pregnant rabbits given oral gavage doses of 0.1, 0.5, 1 g/kg/day colesevelam hydrochloride from gestation days 6 through 18, no teratogenic effects were observed. Exposures at 1 g/kg/day were 5 times the human exposure at 3.75 g/day MRHD, based on body surface area (mg/m 2 ). In pregnant rats given oral gavage doses of 0.1, 0.3, 1 g/kg/day colesevelam hydrochloride from gestation day 6 through lactation day 21 (weaning), no adverse effects on survival and development were observed. Exposures at 1 g/kg/day were 5 times the human exposure at 3.75 g/day MRHD, based on body surface area (mg/m 2 ). 8.2 Lactation Risk Summary Colesevelam hydrochloride is not absorbed systemically by the mother following oral administration, and breastfeeding is not expected to result in exposure of the child to colesevelam hydrochloride. 8.3 Females and Males of Reproductive Potential Contraception Use of colesevelam hydrochloride may reduce the efficacy of oral contraceptives. Advise patients to take oral contraceptives at least 4 hours prior to taking colesevelam hydrochloride [see Drug Interactions ( 7 )]. 8.4 Pediatric Use Primary Hyperlipidemia The safety and effectiveness of colesevelam hydrochloride to reduce LDL-C levels in boys and postmenarchal girls 10 to 17 years of age with HeFH who are unable to reach LDL-C target levels despite an adequate trial of dietary therapy and lifestyle modification have been established. Use of colesevelam hydrochloride for this indication is supported by a study in 129 colesevelam hydrochloride-treated pediatric patients aged 10 to 17 years with HeFH [see Clinical Studies ( 14.1 )] . Adverse reactions commonly observed in pediatric patients compared to placebo, but not in adults, included headache (3.9%), creatine phosphokinase increase (2.3%), and vomiting (2.3%) [see Adverse Reactions ( 6.1 )] . There were no signific …

12.1 Mechanism of Action Primary Hyperlipidemia: Colesevelam hydrochloride, the active pharmaceutical ingredient in colesevelam hydrochloride for oral suspension, is a non-absorbed, lipid-lowering polymer that binds bile acids in the intestine, impeding their reabsorption. As the bile acid pool becomes depleted, the hepatic enzyme, cholesterol 7-α-hydroxylase, is upregulated, which increases the conversion of cholesterol to bile acids. This causes an increased demand for cholesterol in the liver cells, resulting in the dual effect of increasing transcription and activity of the cholesterol biosynthetic enzyme, HMG-CoA reductase, and increasing the number of hepatic LDL receptors. These compensatory effects result in increased clearance of LDL-C from the blood, resulting in decreased serum LDL-C levels. Serum TG levels may increase or remain unchanged. Type 2 Diabetes Mellitus : The mechanism by which colesevelam hydrochloride improves glycemic control is unknown.

11 DESCRIPTION Colesevelam hydrochloride is a non-absorbed, polymeric, lipid-lowering and glucose-lowering agent for oral administration. Colesevelam hydrochloride is a high-capacity bile acid-binding molecule. Colesevelam hydrochloride is poly(allylamine hydrochloride) cross-linked with epichlorohydrin and alkylated with 1-bromodecane and (6-bromohexyl)-trimethylammonium bromide. The chemical name (IUPAC) of colesevelam hydrochloride is allylamine polymer with 1-chloro-2,3-epoxypropane, [6-(allylamino)-hexyl]trimethylammonium chloride and N-allyldecylamine, hydrochloride. The chemical structure of colesevelam hydrochloride is represented by the following formula: wherein (a) represents allyl amine monomer units that have not been alkylated by either of the 1-bromodecane or (6-bromohexyl)-trimethylammonium bromide alkylating agents or cross-linked by epichlorohydrin; (b) represents allyl amine units that have undergone cross-linking with epichlorohydrin; (c) represents allyl amine units that have been alkylated with a decyl group; (d) represents allyl amine units that have been alkylated with a (6-trimethylammonium) hexyl group, and m represents a number ≥ 100 to indicate an extended polymer network. A small amount of the amines are dialkylated and are not depicted in the formula above. No regular order of the groups is implied by the structure; cross-linking and alkylation are expected to occur randomly along the polymer chains. A large amount of the amines are protonated. The polymer is depicted in the hydrochloride form; a small amount of the halides are bromide. Colesevelam hydrochloride is hydrophilic and insoluble in water. Colesevelam hydrochloride for oral suspension is a citrus-flavored, a white to yellow granular powder containing yellow granules packaged in single-dose packets containing 3.75 gram colesevelam hydrochloride. In addition, each packet contains the following inactive ingredients: microcrystalline cellulose, medium chain triglycerides, simethicone emulsion, colloidal silicon dioxide, propylene glycol alginate, magnesium trisilicate, lemon-lime flavor, orange flavor, citric acid monohydrate, and aspartame (<5 calories per 3.75 gram single-dose packet).PHENYLKETONURICS: colesevelam hydrochloride for oral suspension contains 33.6 mg phenylalanine per 3.75 gram dose. colese-struc

10 OVERDOSAGE Colesevelam hydrochloride is not absorbed and the risk of systemic toxicity is low. Excessive doses of colesevelam hydrochloride may cause more severe local gastrointestinal effects (e.g., constipation).

16 HOW SUPPLIED/STORAGE AND HANDLING Colesevelam hydrochloride for oral suspension contains a citrus flavored off-white to yellow granular powder. Colesevelam hydrochloride for oral suspension is available as follows: • 1.875 gram NDC 68462-619-60 1 box of 60 single-dose packets Note to Pharmacists: do not dispense contents separately; dispense as 1 box • 3.75 gram NDC 68462-620-30 1 box of 30 single-dose packets Note to Pharmacists : do not dispense contents separately; dispense as 1 box Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Protect from moisture.