Mycophenolate Mofetil

RECENT MAJOR CHANGES Indications and Usage, Pediatric Heart or Liver Transplants (1) 6/2022 Dosage and Administration, Dosage Recommendations for Heart Transplant Patients (2.3) 6/2022 Dosage and Administration, Dosage Recommendations for Liver Transplant Patients (2.4) 6/2022

1 INDICATIONS AND USAGE Mycophenolate mofetil for oral suspension is indicated for the prophylaxis of organ rejection, in adult and pediatric recipients 3 months of age and older of allogeneic kidney [see Clinical Studies (14.1) ] , heart [see Clinical Studies (14.2) ] or liver transplants [see Clinical Studies (14.3) ] , in combination with other immunosuppressants. Mycophenolate mofetil for oral suspension is an antimetabolite immunosuppressant indicated for the prophylaxis of organ rejection in adult and pediatric recipients 3 months of age and older of allogeneic kidney, heart or liver transplants, in combination with other immunosuppressants. (1)

2 DOSAGE AND ADMINISTRATION ADULTS DOSAGE Kidney Transplant 1 g twice daily, orally ( 2.2 ) Heart Transplant 1.5 g twice daily orally ( 2.3 ) Liver Transplant 1.5 g twice daily orally ( 2.4 ) PEDIATRICS Kidney Transplant 600 mg/m 2 orally twice daily, up to maximum of 2 g daily ( 2.2 ) Heart Transplant 600 mg/m 2 orally twice daily (starting dose) up to a maximum of 900 mg/m 2 twice daily (3 g or 15 mL of oral suspension) ( 2.3 ) Liver Transplant 600 mg/m 2 orally twice daily (starting dose) up to a maximum of 900 mg/m 2 twice daily (3 g or 15 mL of oral suspension) ( 2.4 ) CELLCEPT Intravenous is an alternative when patients cannot tolerate oral medication. Administer within 24 hours following transplantation, until patients can tolerate oral medication, up to 14 days. (2.1) Reduce or interrupt dosing in the event of neutropenia. (2.5) See full prescribing information (FPI) for: adjustments for renal impairment and neutropenia (2.5) , preparation of oral suspension. (2.6) 2.1 Important Administration Instructions Mycophenolate mofetil for oral suspension should not be used without the supervision of a physician with experience in immunosuppressive therapy. Mycophenolate Mofetil for Oral Suspension Mycophenolate mofetil for oral suspension should not be used interchangeably with mycophenolic acid delayed-release tablets without supervision of a physician with experience in immunosuppressive therapy because the rates of absorption following the administration of mycophenolate mofetil for oral suspension and mycophenolic acid delayed-release tablets are not equivalent. Patients should avoid inhalation or contact of the skin or mucous membranes with the powder contained in mycophenolate mofetil for oral suspension. If such contact occurs, they must wash the area of contact thoroughly with soap and water. In case of ocular contact, rinse eyes with plain water. The initial oral dose of mycophenolate mofetil for oral suspension should be given as soon as possible following kidney, heart or liver transplant. It is recommended that mycophenolate mofetil for oral suspension be administered on an empty stomach. In stable transplant patients, however, mycophenolate mofetil for oral suspension may be administered with food if necessary [see Clinical Pharmacology (12.3) ] . Once reconstituted, mycophenolate mofetil for oral suspension must not be mixed with any liquids prior to dose administration. If needed, mycophenolate mofetil for oral suspension can be administered via a nasogastric tube with a minimum size of 8 French (minimum 1.7 mm interior diameter). Patients should be instructed to take a missed dose as soon as they remember, except if it is closer than 2 hours to the next scheduled dose; in this case, they should continue to take mycophenolate mofetil for oral suspension at the usual times. CELLCEPT Intravenous CELLCEPT Intravenous is recommended for patients unable to take oral mycophenolate mofetil. CELLCEPT Intravenous should be administered within 24 hours following transplant. CELLCEPT Intravenous can be administered for up to 14 days; however, patients should be switched to oral mycophenolate mofetil as soon as they can tolerate oral medication. 2.2 Dosage Recommendations for Kidney Transplant Patients Adults The recommended dosage for adult kidney transplant patients is 1 g orally, twice daily (total daily dose of 2 g). Pediatrics (3 months and older) Pediatric dosing is based on body surface area (BSA). The recommended dosage of mycophenolate mofetil for oral suspension for pediatric kidney transplant patients 3 months and older is 600 mg/m 2 , administered twice daily (maximum total daily dose of 2 g or 10 mL of the oral suspension). Pediatric patients with BSA ≥ 1.25 m 2 may be dosed with capsules or tablets as follows: Table 1: Pediatric Kidney Transplant: Dosage Using Capsules or Tablets Body Surface Area Dosage 1.25 m 2 to < 1.5 m 2 CellCept capsule 750 mg twice daily (1.5 g total daily dose) ≥ 1.5 m 2 CellCept caps …

3 DOSAGE FORMS AND STRENGTHS Mycophenolate mofetil for oral suspension, USP is available in the following dosage form and strength: For oral suspension 35 g mycophenolate mofetil white to off-white granular powder for reconstitution (200 mg/mL upon reconstitution) For Oral Suspension: 35 g mycophenolate mofetil, powder for reconstitution (200 mg/mL upon reconstitution)

4 CONTRAINDICATIONS Mycophenolate mofetil is contraindicated in patients with a history of hypersensitivity, including anaphylaxis, to mycophenolate mofetil (MMF), mycophenolic acid (MPA) or any component of the drug product [see Warnings and Precautions ( 5.8 )]. Mycophenolate mofetil intravenous is contraindicated in patients who are allergic to Polysorbate 80 (TWEEN). History of hypersensitivity, including anaphylaxis, to mycophenolate mofetil, mycophenolic acid or any component of the drug product ( 4 ) Patients allergic to Polysorbate 80 (present in mycophenolate mofetil IV) ( 4 )

6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the label: Embryofetal Toxicity [see Warnings and Precautions ( 5.1 ) ] Lymphomas and Other Malignancies [see Warnings and Precautions ( 5.2 ) ] Serious Infections [see Warnings and Precautions ( 5.3 ) ] Blood Dyscrasias: Neutropenia, Pure Red Cell Aplasia [see Warnings and Precautions ( 5.4 ) ] Gastrointestinal Complications [see Warnings and Precautions ( 5.5 ) ] Acute Inflammatory Syndrome Associated with Mycophenolate Products [see Warnings and Precautions ( 5.7 ) ] Hypersensitivity Reactions [see Warnings and Precautions ( 5.8 ) ] The most common adverse reactions in clinical trials (20 % or greater) include diarrhea, leukopenia, infection, vomiting, and there is evidence of a higher frequency of certain types of infections e.g., opportunistic infection. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Quagen Pharmaceuticals LLC at 1-888-344-9603 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.com 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 rates in the clinical trials of another drug and may not reflect the rates observed in practice. An estimated total of 1557 adult patients received mycophenolate mofetil during pivotal clinical trials in the prevention of acute organ rejection. Of these, 991 were included in the three renal studies, 277 were included in one hepatic study, and 289 were included in one cardiac study. Patients in all study arms also received cyclosporine and corticosteroids. The data described below primarily derive from five randomized, active-controlled double-blind 12-month trials of mycophenolate mofetil in de novo kidney (3) heart (1) and liver (1) transplant patients [see Clinical Studies ( 14.1, 14.2, and 14.3 )] . Mycophenolate Mofetil Oral The incidence of adverse reactions for mycophenolate mofetil was determined in five randomized, comparative, double-blind trials in the prevention of rejection in kidney, heart and liver transplant patients (two active- and one placebo-controlled trials, one active-controlled trial, and one active-controlled trial, respectively) [see Clinical Studies ( 14.1, 14.2, and 14.3 )] . The three de novo kidney studies with 12-month duration compared two dose levels of oral mycophenolate mofetil (1 g twice daily and 1.5 g twice daily) with azathioprine (2 studies) or placebo (1 study) when administered in combination with cyclosporine (Sandimmune ® ) and corticosteroids to prevent acute rejection episodes. One study also included anti-thymocyte globulin (ATGAM ® ) induction therapy. In the de novo heart transplantation study with 12-month duration, patients received mycophenolate mofetil 1.5 g twice daily (n=289) or azathioprine 1.5 to 3 mg/kg/day (n=289), in combination with cyclosporine (Sandimmune ® or Neoral ® ) and corticosteroids as maintenance immunosuppressive therapy. In the de novo liver transplantation study with 12-month duration, patients received mycophenolate mofetil 1 g twice daily intravenously for up to 14 days followed by mycophenolate mofetil 1.5 g twice daily orally or azathioprine 1 to 2 mg/kg/day intravenously followed by azathioprine 1 to 2 mg/kg/day orally, in combination with cyclosporine (Neoral ® ) and corticosteroids as maintenance immunosuppressive therapy. The total number of patients enrolled was 565. Approximately 53% of the kidney transplant patients, 65% of the heart transplant patients, and 48% of the liver transplant patients were treated for more than 1 year. Adverse reactions reported in 20% of patients in the mycophenolate mofetil treatment groups are presented below. The safety data of three kidney transplantation studies are pooled together. Table 5 Adverse Reactions in Controlled Studies of De Novo Kidney, Heart or Liver Transplantation Reported in ≥20% of Patients i …

7 DRUG INTERACTIONS See FPI for drugs that may interfere with systemic exposure and reduce mycophenolate mofetil efficacy: antacids with magnesium or aluminum hydroxide, proton pump inhibitors, drugs that interfere with enterohepatic recirculation, telmisartan, calcium-free phosphate binders. (7.1) Mycophenolate mofetil may reduce effectiveness of oral contraceptives. Use of additional barrier contraceptive methods is recommended. (7.2) See FPI for other important drug interactions. (7) 7.1 Effect of Other Drugs on Mycophenolate Mofetil Table 7 Drug Interactions with Mycophenolate Mofetil that Affect Mycophenolic Acid (MPA) Exposure Antacids with Magnesium or Aluminum Hydroxide Clinical Impact Concomitant use with an antacid containing magnesium or aluminum hydroxide decreases MPA systemic exposure [see Clinical Pharmacology ( 12.3 )] , which may reduce mycophenolate mofetil efficacy. Prevention or Management Administer magnesium or aluminum hydroxide containing antacids at least 2h after mycophenolate mofetil administration. Proton Pump Inhibitors (PPIs) Clinical Impact Concomitant use with PPIs decreases MPA systemic exposure [see Clinical Pharmacology ( 12.3 )] , which may reduce mycophenolate mofetil efficacy. Prevention or Management Monitor patients for alterations in efficacy when PPIs are co-administered with mycophenolate mofetil. Examples Lansoprazole, pantoprazole Drugs that Interfere with Enterohepatic Recirculation Clinical Impact Concomitant use with drugs that directly interfere with enterohepatic recirculation, or indirectly interfere with enterohepatic recirculation by altering the gastrointestinal flora, can decrease MPA systemic exposure [see Clinical Pharmacology ( 12.3 )] , which may reduce mycophenolate mofetil efficacy. Prevention or Management Monitor patients for alterations in efficacy or mycophenolate mofetil related adverse reactions when these drugs are co-administered with mycophenolate mofetil. Examples Cyclosporine A, trimethoprim/sulfamethoxazole, bile acid sequestrants (cholestyramine), rifampin as well as aminoglycoside, cephalosporin, fluoroquinolone and penicillin classes of antimicrobials Drugs Modulating Glucuronidation Clinical Impact Concomitant use with drugs inducing glucuronidation decreases MPA systemic exposure, potentially reducing mycophenolate mofetil efficacy, while use with drugs inhibiting glucuronidation increases MPA systemic exposure [see Clinical Pharmacology ( 12.3 )] , which may increase the risk of mycophenolate mofetil related adverse reactions. Prevention or Management Monitor patients for alterations in efficacy or mycophenolate mofetil related adverse reactions when these drugs are co-administered with mycophenolate mofetil. Examples Telmisartan (induces glucuronidation); isavuconazole (inhibits glucuronidation). Calcium Free Phosphate Binders Clinical Impact Concomitant use with calcium free phosphate binders decrease MPA systemic exposure [see Clinical Pharmacology ( 12.3 )] , which may reduce mycophenolate mofetil efficacy. Prevention or Management Administer calcium free phosphate binders at least 2 hours after mycophenolate mofetil. Examples Sevelamer 7.2 Effect of Mycophenolate Mofetil on Other Drugs Table 8 Drug Interactions with Mycophenolate Mofetil that Affect Other Drugs Drugs that Undergo Renal Tubular Secretion Clinical Impact When concomitantly used with mycophenolate mofetil, its metabolite MPAG, may compete with drugs eliminated by renal tubular secretion which may increase plasma concentrations and/or adverse reactions associated with these drugs. Prevention or Management Monitor for drug-related adverse reactions in patients with renal impairment. Examples Acyclovir, ganciclovir, probenecid, valacyclovir, valganciclovir Combination Oral Contraceptives Clinical Impact Concomitant use with mycophenolate mofetil decreased the systemic exposure to levonorgestrel, but did not affect the systemic exposure to ethinylestradiol [see Clinical Pharmacology ( …

8 USE IN SPECIFIC POPULATIONS Male Patients: Sexually active male patients and/or their female partners are recommended to use effective contraception during treatment of the male patient and for at least 90 days after cessation of treatment (8.3) 8.1 Pregnancy Risk Summary Use of mycophenolate mofetil (MMF) during pregnancy is associated with an increased risk of first trimester pregnancy loss and an increased risk of multiple congenital malformations in multiple organ systems [see Human Data ] . Oral administration of mycophenolate to rats and rabbits during the period of organogenesis produced congenital malformations and pregnancy loss at doses less than the recommended clinical dose (0.01 to 0.05 times the recommended clinical doses in kidney and heart transplant patients) [see Animal Data ] . Consider alternative immunosuppressants with less potential for embryofetal toxicity. Risks and benefits of mycophenolate mofetil should be discussed with the pregnant woman. The estimated background risk of pregnancy loss and congenital malformations in organ transplant populations is not clear. 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. Data Human Data A spectrum of congenital malformations (including multiple malformations in individual newborns) has been reported in 23% to 27% of live births in MMF exposed pregnancies, based on published data from pregnancy registries. Malformations that have been documented include external ear, eye, and other facial abnormalities including cleft lip and palate, and anomalies of the distal limbs, heart, esophagus, kidney, and nervous system. Based on published data from pregnancy registries, the risk of first trimester pregnancy loss has been reported at 45% to 49% following MMF exposure. Animal Data In animal reproductive toxicology studies, there were increased rates of fetal resorptions and malformations in the absence of maternal toxicity. Oral administration of MMF to pregnant rats from Gestational Day 7 to Day 16 produced increased embryofetal lethality and fetal malformations including anophthalmia, agnathia, and hydrocephaly at doses equivalent to 0.015 and 0.01 times the recommended human doses for renal and cardiac transplant patients, respectively, when corrected for BSA. Oral administration of MMF to pregnant rabbits from Gestational Day 7 to Day 19 produced increased embryofetal lethality and fetal malformations included ectopia cordis, ectopic kidneys, diaphragmatic hernia, and umbilical hernia at dose equivalents as low as 0.05 and 0.03 times the recommended human doses for renal and cardiac transplant patients, respectively, when corrected for BSA. 8.2 Lactation Risk Summary There are no data on the presence of mycophenolate in human milk, or the effects on milk production. There are limited data in the National Transplantation Pregnancy Registry on the effects of mycophenolate on a breastfed child [see Data ] . Studies in rats treated with MMF have shown mycophenolic acid (MPA) to be present in milk. Because available data are limited, it is not possible to exclude potential risks to a breastfeeding infant. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for mycophenolate mofetil and any potential adverse effects on the breastfed infant from mycophenolate mofetil or from the underlying maternal condition. Data Limited information is available from the National Transplantation Pregnancy Registry. Of seven infants reported by the National Transplantation Pregnancy Registry to have been breastfed while the mother was taking mycophenolate, all were born at 34 to 40 weeks gestation, and breastfed for up to 14 months. No adverse events were reported. 8.3 Females and Males of Reproductive Potential Females of reproductive potential must be made aware of the increased risk of first trim …

12.1 Mechanism of Action Mycophenolate mofetil (MMF) is absorbed following oral administration and hydrolyzed to mycophenolic acid (MPA), the active metabolite. MPA is a selective uncompetitive inhibitor of the two isoforms (type I and type II) of inosine monophosphate dehydrogenase (IMPDH) leading to inhibition of the de novo pathway of guanosine nucleotide synthesis and blocks DNA synthesis. The mechanism of action of MPA is multifaceted and includes effects on cellular checkpoints responsible for metabolic programming of lymphocytes. MPA shifts transcriptional activities in lymphocytes from a proliferative state to catabolic processes. In vitro studies suggest that MPA modulates transcriptional activities in human CD4 + T-lymphocytes by suppressing the Akt/mTOR and STAT5 pathways that are relevant to metabolism and survival, leading to an anergic state of T-cells whereby the cells become less responsive to antigenic stimulation. Additionally, MPA enhanced the expression of negative co-stimulators such as CD70, PD-1, CTLA-4, and transcription factor FoxP3 as well as decreased the expression of positive co-stimulators CD27 and CD28. MPA decreases proliferative responses of T- and B-lymphocytes to both mitogenic and allo-antigenic stimulation, antibody responses, as well as the production of cytokines from lymphocytes and monocytes such as GM-CSF, IFN- Ɣ , IL-17, and TNF-α. Additionally, MPA prevents the glycosylation of lymphocyte and monocyte glycoproteins that are involved in intercellular adhesion to endothelial cells and may inhibit recruitment of leukocytes into sites of inflammation and graft rejection. Overall, the effect of MPA is cytostatic and reversible.

11 DESCRIPTION Mycophenolate mofetil, USP is an antimetabolite immunosuppressant. It is the 2-morpholinoethyl ester of mycophenolic acid (MPA), an immunosuppressive agent; inosine monophosphate dehydrogenase (IMPDH) inhibitor. The chemical name for mycophenolate mofetil, USP (MMF) is 2-morpholinoethyl (E)-6-(1,3-dihydro-4-hydroxy-6­-methoxy-7-methyl-3-oxo-5-phthalanyl)-4-methyl-4-hexenoate. It has an empirical formula of C 23 H 31 NO 7 , a molecular weight of 433.49, and the following structural formula: MMF is a white to off-white crystalline powder. It is slightly soluble in water (43 mcg/mL at pH 7.4); the solubility increases in acidic medium (4.27 mg/mL at pH 3.6). It is freely soluble in acetone, soluble in methanol, and sparingly soluble in ethanol. The apparent partition coefficient in 1-octanol/water (pH 7.4) buffer solution is 238. The pKa values for MMF are 5.6 for the morpholino group and 8.5 for the phenolic group. MMF hydrochloride has a solubility of 65.8 mg/mL in 5% Dextrose Injection USP (D5W). The pH of the reconstituted solution is 2.4 to 4.1. Mycophenolate mofetil is available for oral administration as a powder for oral suspension which, when reconstituted, contains 200 mg/mL of mycophenolate mofetil, USP. Inactive ingredients in mycophenolate mofetil for oral suspension include anhydrous citric acid, aspartame, colloidal silicon dioxide, methylparaben, natural and artificial mixed fruit flavor, sodium citrate, sorbitol, soybean lecithin, and xanthan gum. Structural Formula

10 OVERDOSAGE Possible signs and symptoms of acute overdose include hematological abnormalities such as leukopenia and neutropenia, and gastrointestinal symptoms such as abdominal pain, diarrhea, nausea, vomiting, and dyspepsia. The experience with overdose of mycophenolate mofetil in humans is limited. The reported effects associated with overdose fall within the known safety profile of the drug. The highest dose administered to kidney transplant patients in clinical trials has been 4 g/day. In limited experience with heart and liver transplant patients in clinical trials, the highest doses used were 4 g/day or 5 g/day. At doses of 4 g/day or 5 g/day, there appears to be a higher rate, compared to the use of 3 g/day or less, of gastrointestinal intolerance (nausea, vomiting, and/or diarrhea), and occasional hematologic abnormalities, particularly neutropenia [see Warnings and Precautions (5.4) ] . Treatment and Management MPA and the phenolic glucuronide metabolite of MPA (MPAG) are usually not removed by hemodialysis. However, at high MPAG plasma concentrations (> 100 mcg/mL), small amounts of MPAG are removed. By increasing excretion of the drug, MPA can be removed by bile acid sequestrants, such as cholestyramine [see Clinical Pharmacology (12.3) ] .

16 HOW SUPPLIED/STORAGE AND HANDLING 16.1 Handling and Disposal Mycophenolate mofetil (MMF) has demonstrated teratogenic effects in humans [see Warnings and Precautions ( 5.1 ) and Use in Specific Populations ( 8.1 )] . Mycophenolate mofetil tablets should not be crushed and mycophenolate mofetil capsules should not be opened or crushed. Wearing disposable gloves is recommended during reconstitution and when wiping the outer surface of the bottle/cap and the table after reconstitution. Avoid inhalation or direct contact with skin or mucous membranes of the powder contained in mycophenolate mofetil capsules, mycophenolate mofetil for oral suspension (before or after constitution), or mycophenolate mofetil intravenous (during or after preparation) [see Dosage and Administration ( 2.6 )]. Follow applicable special handling and disposal procedures 1 . 16.4 Mycophenolate Mofetil for Oral Suspension, USP Supplied as white to off white powder blend for constitution to white to off white mixed fruit flavor suspension. Supplied in the following presentations: 225mL bottle with bottle adapter and 2 oral dispensers................ NDC 67877-230-22 Storage Store dry powder at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F). Store constituted suspension at 25°C (77°F); excursions permitted to 15° C to 30°C (59°F to 86°F) for up to 60 days. Storage in a refrigerator at 2°C to 8°C (36°F to 46°F) is acceptable. Do not freeze.