GERIATRIC USE SECTION.

8.5 Geriatric Use. Of the total number of subjects in clinical studies of LOKELMA, 58% were age 65 and over, while 25% were 75 and over. No overall differences in safety or effectiveness were observed between these patients and younger patients.

HOW SUPPLIED SECTION.

16 HOW SUPPLIED/STORAGE AND HANDLING LOKELMA (sodium zirconium cyclosilicate) for oral suspension is supplied as white to grey powder in foil-lined packets as follows:LOKELMA (grams)Single PacketBox of 11 PacketsBox of 30 Packets5NDC 0310-1105-01NDC 0310-1105-39NDC 0310-1105-3010NDC 0310-1110-01NDC 0310-1110-39NDC 0310-1110-30Storage and HandlingStore LOKELMA at 15C-30C (59F-86F).

INDICATIONS & USAGE SECTION.

1 INDICATIONS AND USAGE. LOKELMA is indicated for the treatment of hyperkalemia in adults.Limitation of UseLOKELMA should not be used as an emergency treatment for life-threatening hyperkalemia because of its delayed onset of action [see Clinical Pharmacology (12.2) and Clinical Studies (14)].. LOKELMA is potassium binder indicated for the treatment of hyperkalemia in adults. (1) Limitation of Use LOKELMA should not be used as an emergency treatment for life-threatening hyperkalemia because of its delayed onset of action. (1).

ADVERSE REACTIONS SECTION.

6 ADVERSE REACTIONS. The following adverse reactions are discussed in greater detail elsewhere in the label:oEdema [see Warnings and Precautions (5.2)].. oEdema [see Warnings and Precautions (5.2)].. Most common adverse reactions with LOKELMA: mild to moderate edema. (6.1)To report SUSPECTED ADVERSE REACTIONS, contact AstraZeneca at 1-800-236-9933 or FDA at 1-800-FDA-1088 or 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 drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice.The total exposure to LOKELMA in the safety and efficacy clinical trials of patients not on dialysis with hyperkalemia was 1,760 patients with 652 patients exposed to LOKELMA for at least months and 507 patients exposed for at least one year.The population (n=1,009) in the placebo-controlled trials included patients aged 22 to 96 years, females (n=454), Caucasians (n=859) and Blacks (n=130). Patients had hyperkalemia in association with comorbid diseases such as chronic kidney disease, heart failure, and diabetes mellitus.In placebo-controlled trials in which patients who were not on dialysis were treated with once daily doses of LOKELMA for up to 28 days, edema was reported in 4.4% of patients receiving g, 5.9% of patients receiving 10 and 16.1% of patients receiving 15 LOKELMA compared to 2.4% of patients receiving placebo. In longer-term uncontrolled trials in which most patients were maintained on doses <15 once daily, adverse reactions of edema (edema, generalized edema and peripheral edema) were reported in 8% to 11% of patients.Laboratory AbnormalitiesIn clinical trials in patients who were not on dialysis, 4.1% of LOKELMA-treated patients developed hypokalemia with serum potassium value less than 3.5 mEq/L, which resolved with dosage reduction or discontinuation of LOKELMA. In clinical trial of LOKELMA in patients on chronic hemodialysis, 5% of patients developed pre-dialysis hypokalemia (serum potassium <3.5 mEq/L) in both the LOKELMA and placebo groups; 3% and 1% of patients developed serum potassium 3.0 mEq/L in the LOKELMA and placebo groups, respectively.

CARCINOGENESIS & MUTAGENESIS & IMPAIRMENT OF FERTILITY SECTION.

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility. The following tests for mutagenic potential of sodium zirconium cyclosilicate were negative: (1) the Ames (S. typhimurium and E. coli) test; (2) chromosomal aberration assay in Chinese Hamster Ovary (CHO) cells; and (3) in vivo rat micronucleus assay. Given that zirconium cyclosilicate is not genotoxic, not absorbed from the gastrointestinal tract, and did not cause local gastrointestinal alterations in chronic toxicity study in dogs, carcinogenicity studies in animals to evaluate tumorigenic potential of sodium zirconium cyclosilicate were not deemed to be necessary.Fertility in male and female rats has been assessed at doses up to Human Equivalent Dose (HED) of 58 per day (the maximum feasible dose) with no adverse effects.

CLINICAL PHARMACOLOGY SECTION.

12 CLINICAL PHARMACOLOGY. 12.1 Mechanism of Action. LOKELMA (sodium zirconium cyclosilicate) is non-absorbed zirconium silicate that preferentially captures potassium in exchange for hydrogen and sodium. In vitro, LOKELMA has high affinity for potassium ions, even in the presence of other cations such as calcium and magnesium. LOKELMA increases fecal potassium excretion through binding of potassium in the lumen of the gastrointestinal tract. Binding of potassium reduces the concentration of free potassium in the gastrointestinal lumen, thereby lowering serum potassium levels.. 12.2 Pharmacodynamics. In study in healthy adult subjects, LOKELMA administered as g or 10 once daily for four days caused dose-dependent increase in fecal potassium excretion. Corresponding dose-dependent decreases in urinary potassium excretion and serum potassium were also observed.In patients with hyperkalemia treated with LOKELMA 10 three times day for up to 48 hours, reductions in serum potassium were observed one hour after initiation of therapy; serum potassium concentrations continued to decline over the 48-hour treatment period [see Clinical Studies (14.2)]. In patients not continuing LOKELMA, potassium levels increased. Patients with higher starting serum potassium levels or receiving higher dose have greater reductions in serum potassium.LOKELMA causes small dose-dependent increase in serum bicarbonate concentrations (1.1 mmol/L at g once daily, 2.3 mmol/L at 10 once daily and 2.6 mmol/L at 15 once daily as compared with mean increase of 0.6 mmol/L in patients treated with placebo). The clinical significance of this finding is unclear.. 12.3 Pharmacokinetics. LOKELMA is an inorganic, insoluble compound that is not subject to enzymatic metabolism. In clinical study in patients with hyperkalemia in which zirconium concentrations were measured in the urine and blood, zirconium concentrations were similar in treated and untreated patients (i.e., either undetectable or around the lower limit of quantification of the assay). An in vivo mass balance study in rats showed that LOKELMA was recovered in the feces with no evidence of systemic absorption.. Drug Interactions. Thirty-six (36) drugs were tested to determine potential interactions with LOKELMA.Sixteen (16) drugs tested did not show an in vitro interaction with LOKELMA (allopurinol, apixaban, aspirin, captopril, cyclosporine, digoxin, ethinyl estradiol, lisinopril, magnesium, metformin, phenytoin, prednisone, propranolol, quinapril, spironolactone and ticagrelor).Nine (9) of the 20 drugs that showed an in vitro interaction were subsequently tested in vivo in healthy volunteers. Losartan, glipizide and levothyroxine did not show any changes in exposure when co-administered with LOKELMA. However, there was an increase in systemic exposure to weak acids such as furosemide and atorvastatin, and decrease in systemic exposure to weak bases such as dabigatran when co-administered with LOKELMA, as shown in Figure 2. These changes are consistent with the hypothesis that LOKELMA, by elevating gastric pH, affects the systemic exposure of co-administered drugs whose solubility is pH-dependent [see Drug Interactions (7)].Figure 2: Effects of LOKELMA on the Pharmacokinetic Exposures of Other Orally Administered Medications. figure2.

CLINICAL STUDIES SECTION.

14 CLINICAL STUDIES. 14.1 Study 1. The effectiveness of LOKELMA in lowering serum potassium was demonstrated in two-part, double-blind, randomized, placebo-controlled clinical trial (NCT01737697) in patients with hyperkalemia (5 to 6.5 mEq/L, mean potassium 5.3 mEq/L), Study 1.In the first phase of the trial (the acute phase), 753 patients were randomized to receive one of four doses of LOKELMA (1.25, 2.5, or 10 g) or placebo, administered three times daily for the initial 48 hours with meals.The mean age of patients was 66 years, 59% of patients were men, and 86% were Caucasian. Approximately 60% of patients had chronic kidney disease, 10% had heart failure, 62% had diabetes mellitus and 67% were on renin angiotensin aldosterone system (RAAS) inhibitor therapy at baseline.The primary endpoint in the acute phase was the difference in the exponential rate of change in serum potassium levels during the initial 48 hours of study drug treatment, comparing placebo-treated patients and LOKELMA-treated patients. The study met its primary endpoint demonstrating greater reduction in serum potassium levels for the 2.5, and 10 (three times day) dose groups compared to the placebo group (p<0.001). As displayed in Table for the secondary endpoint of potassium change from baseline, LOKELMA showed dose-dependent reductions in serum potassium at 2.5, and 10 g. In patients administered 10 TID, the mean serum potassium reduction was -0.7 mEq/L at 48 hours. Patients with higher starting potassium levels had greater response to LOKELMA. LOKELMA was effective in lowering potassium levels in patients with chronic kidney disease, heart failure, diabetes mellitus and those taking RAAS inhibitor therapy.Table 1: Study - Potassium Change from Baseline to 48 hoursMean Serum Potassium Change mEq/L(95% Confidence Intervals)Sample SizePlacebo1.25 TID2.5 TID5 TID10 TIDAll Patients-0.2(-0.3, -0.2)n=158-0.3(-0.4, -0.2)n=150-0.5(-0.5, -0.4)n=137-0.5(-0.6, -0.5)n=152-0.7(-0.8, -0.7)n=140Baseline Serum Potassium>5.5 mEq/L-0.4(-0.6, -0.3)n=40-0.3(-0.5, -0.2)n=40-0.6(-0.7, -0.4)n=37-0.9(-1.0, -0.7)n=29-1.1(-1.3, -0.9)n=22Patients who achieved potassium level between 3.5 and mEq/L after receiving LOKELMA during the acute phase were re-randomized to receive once daily placebo or 1.25, 2.5, or 10 of once daily LOKELMA for 12 days together with breakfast.The primary endpoint in the maintenance phase was the difference in the exponential rate of change in serum potassium levels over the 12-day treatment interval, comparing patients receiving LOKELMA and patients receiving placebo. The study met the primary efficacy endpoint at the and 10 doses when compared with their respective placebo groups (p<0.01 and p<0.001).. 14.2 Study 2. The efficacy of LOKELMA was also demonstrated in two-part trial with an open-label acute phase and month-long randomized, double-blind, placebo-controlled withdrawal phase (Study 2; NCT02088073).In the open-label acute phase of Study 2, 258 patients with hyperkalemia (baseline mean 5.6 mEq/L, range 5.1 to 7.4 mEq/L) received 10 of LOKELMA administered three times daily with meals for 48 hours. As shown in Figure 3, left, average serum potassium levels decreased from 5.6 to 4.5 mEq/L during treatment with LOKELMA in the acute phase.Following the acute phase of the study, there was double-blind randomized withdrawal phase where patients who achieved potassium levels between 3.5 and mEq/L were randomized to one of three doses of LOKELMA administered once-daily for 28 days, or placebo just before breakfast. Of the patients enrolled in the acute phase, 92% achieved potassium level within this range and were enrolled into the second phase of the trial.The primary endpoint in the randomized withdrawal phase was the mean serum potassium value over the period from Day to Day 29, comparing LOKELMA-treated and placebo-treated patients. All three doses (5, 10 and 15 g) of once daily LOKELMA maintained mean potassium at lower levels than placebo (mean serum potassium was 4.8, 4.5, and 4.4 mEq/L for the 5, 10 and 15 dose groups, respectively, vs. 5.1 mEq/L in the placebo group, p<=0.001 for all doses, Figure 3, right). greater proportion of patients had mean serum potassium levels in the normal range (3.5 to mEq/L) while on LOKELMA than while on placebo (80%, 90% and 94% at the 5, 10 and 15 doses, respectively, vs. 46% on placebo).Figure 3: Study - Mean Serum Potassium Levels in the Acute and Randomized Withdrawal PhasesIntent-to-Treat population includes subjects with at least one valid serum potassium measurement on or after Day 8. figure3. 14.3 Eleven-Month Extension Study. Patients who completed the 28-day randomized withdrawal phase had the option to continue treatment with LOKELMA, taken just before breakfast, in an open-label extension phase for up to 11 months (n=123; NCT02107092). Figure shows that the treatment effect on serum potassium was maintained during continued therapy.Figure 4: 11-Month Open-Label Extension Phase of Study - Mean Serum Potassium (mEq/L). Figure 4. 14.4 Study . LOKELMA was evaluated in an open-label 12-month study in 751 hyperkalemic patients (NCT02163499). The mean baseline potassium level in this study was 5.6 mEq/L. Following the acute phase treatment of LOKELMA 10 three times day, patients who achieved normokalemia (3.5-5.0 mEq/L) within 72 hours (n=746; 99%) entered the maintenance phase. For maintenance treatment, the initial dosage of LOKELMA was g once daily and was adjusted to minimum of g every other day up to maximum of 15 once daily, based on serum potassium level. The treatment effect on serum potassium was maintained during continued therapy.. 14.5 Study . The effectiveness of LOKELMA in lowering serum potassium was studied in double-blind, placebo-controlled trial of 196 chronic hemodialysis patients (mean age 58 years, range 20 to 86 years) with persistent pre-dialysis hyperkalemia (mean baseline potassium 5.8 mEq/L) who were randomized to receive LOKELMA g or placebo once daily on non-dialysis days (NCT03303521). During the dose adjustment period (initial weeks), the dose was adjusted weekly in g increments up to 15 once daily based on pre-dialysis serum potassium measurement after the long inter-dialytic interval to achieve pre-dialysis serum potassium level between 4.0-5.0 mEq/L. The dose reached at the end of the dose-adjustment period was maintained throughout the subsequent 4-week evaluation period.The primary endpoint in the trial was the proportion of responders, defined as patients who maintained pre-dialysis serum potassium between 4.0 and 5.0 mEq/L on at least out of dialysis treatments after the long inter-dialytic interval and who did not receive rescue therapy during the evaluation period. greater proportion of patients were responders in the LOKELMA arm as compared to placebo (41% vs 1%, respectively; p<0.001). The treatment effect on mean pre-dialysis serum potassium levels was maintained during continued treatment. Mean pre-dialysis serum potassium levels during the study are presented in Figure 5.Figure 5: Mean Pre-Dialysis Serum Potassium Levels Over Time in Patients on Chronic HemodialysisF/U follow-up periodThe displayed error bars correspond to 95% confidence intervals.n Number of patients with non-missing potassium measurements at particular visit.. figure5.

CONTRAINDICATIONS SECTION.

4 CONTRAINDICATIONS None.. None. (4).

DESCRIPTION SECTION.

11 DESCRIPTION. LOKELMA is powder for oral suspension. The active ingredient in LOKELMA is sodium zirconium cyclosilicate, potassium binder. Sodium zirconium cyclosilicate is non-absorbed zirconium silicate that preferentially exchanges potassium for hydrogen and sodium. LOKELMA is an odorless, insoluble white to grey powder for oral suspension. It has mean particle size of 20 um and includes no more than 3% of particles with diameter below um. Each g of sodium zirconium cyclosilicate contains 400 mg of sodium.The chemical formula of sodium zirconium cyclosilicate is Na~1.5H~0.5ZrSi3O9o2-3H2O.Figure 1: Crystal Structure of Sodium Zirconium Cyclosilicate. Figure 1.

DOSAGE & ADMINISTRATION SECTION.

2 DOSAGE AND ADMINISTRATION. oRecommended starting dose is 10 administered three times day for up to 48 hours. (2.1)oFor maintenance treatment, recommended dose is 10 once daily. Adjust dose at one-week intervals as needed (by g daily) to obtain desired serum potassium target range. (2.1) Patients on Chronic HemodialysisoRecommended starting dose is g once daily on non-dialysis days. (2.2) See full Prescribing Information for additional dosing instructions, as well as reconstitution and administration instructions for the oral suspension.. oRecommended starting dose is 10 administered three times day for up to 48 hours. (2.1). oFor maintenance treatment, recommended dose is 10 once daily. Adjust dose at one-week intervals as needed (by g daily) to obtain desired serum potassium target range. (2.1). Patients on Chronic Hemodialysis. oRecommended starting dose is g once daily on non-dialysis days. (2.2). See full Prescribing Information for additional dosing instructions, as well as reconstitution and administration instructions for the oral suspension.. 2.1 Recommended Dosage. For initial treatment of hyperkalemia, the recommended dose of LOKELMA is 10 administered three times day for up to 48 hours. Administer LOKELMA orally as suspension in water [see Dosage and Administration (2.3)].For continued treatment, the recommended dose is 10 once daily. Monitor serum potassium and adjust the dose of LOKELMA based on the serum potassium level and desired target range. During maintenance treatment, up-titrate based on the serum potassium level at intervals of 1-week or longer and in increments of g. Decrease the dose of LOKELMA or discontinue if the serum potassium is below the desired target range. The recommended maintenance dose range is from g every other day to 15 daily.. 2.2 Dosage Adjustment for Patients on Chronic Hemodialysis For patients on chronic hemodialysis, administer LOKELMA only on non-dialysis days.The recommended starting dose is g once daily on non-dialysis days. Consider starting dose of 10 once daily on non-dialysis days in patients with serum potassium greater than 6.5 mEq/L. Monitor serum potassium and adjust the dose of LOKELMA based on the pre-dialysis serum potassium value after the long inter-dialytic interval and desired target range.During initiation and after dose adjustment, assess serum potassium after one week. The recommended maintenance dose range is from g to 15 once daily, on non-dialysis days.Discontinue or decrease the dose of LOKELMA if:oserum potassium falls below the desired target range based on the pre-dialysis value after the long interdialytic interval, or;othe patient develops clinically significant hypokalemia. oserum potassium falls below the desired target range based on the pre-dialysis value after the long interdialytic interval, or;. othe patient develops clinically significant hypokalemia. 2.3 Reconstitution and Administration. In general, other oral medications should be administered at least hours before or hours after LOKELMA [see Drug Interactions (7) ].Instruct patients to empty the entire contents of the packet(s) into drinking glass containing approximately tablespoons of water or more if desired. Stir well and drink immediately. If powder remains in the drinking glass, add water, stir and drink immediately. Repeat until no powder remains to ensure the entire dose is taken.

DOSAGE FORMS & STRENGTHS SECTION.

3 DOSAGE FORMS AND STRENGTHS. For oral suspension: g or 10 of white to grey powder in foil-lined packet.. oFor oral suspension: g per packet (3)oFor oral suspension: 10 per packet (3). oFor oral suspension: g per packet (3). oFor oral suspension: 10 per packet (3).

DRUG INTERACTIONS SECTION.

7 DRUG INTERACTIONS. LOKELMA can transiently increase gastric pH. As result, LOKELMA can change the absorption of co-administered drugs that exhibit pH-dependent solubility, potentially leading to altered efficacy or safety of these drugs when taken close to the time LOKELMA is administered. In general, other oral medications should be administered at least hours before or hours after LOKELMA [see Dosage and Administration (2.3) and Clinical Pharmacology (12.3)]. LOKELMA is not expected to impact systemic exposure of drugs that do not exhibit pH-dependent solubility and so spacing is not needed if it has been determined that the concomitant medication does not exhibit pH-dependent solubility.. In general, other oral medications should be administered at least hours before or hours after LOKELMA. (2.3, 7, 12.3).

INFORMATION FOR PATIENTS SECTION.

17 PATIENT COUNSELING INFORMATION DosingInstruct the patient how to reconstitute LOKELMA for administration. Inform the patient that it is necessary to drink the full dose [see Dosage and Administration (2.3)].Instruct dialysis patients who experience acute illness (e.g., decreased oral intake of food or fluids, diarrhea) to contact the health care provider. The dose of Lokelma may need to be adjusted [see Warnings and Precautions (5.3)].Diagnostic TestingAdvise patients to notify their physician prior to an abdominal X-ray [see Warnings and Precautions (5.4)].Drug InteractionsAdvise patients who are taking other oral medications to separate dosing of LOKELMA by at least hours (before or after) [see Drug Interactions (7)].DietAdvise patients to adjust dietary sodium, if appropriate [see Warnings and Precautions (5.2)].U.S. Patent No: 6332985, 8808750, 8877255, 8802152, 9592253(C) AstraZeneca 2021Manufactured by: AstraZeneca Pharmaceuticals LP, Wilmington, DE 19850.

LACTATION SECTION.

8.2 Lactation. Risk SummaryLOKELMA is not absorbed systemically following oral administration, and breastfeeding is not expected to result in exposure of the child to LOKELMA.

MECHANISM OF ACTION SECTION.

12.1 Mechanism of Action. LOKELMA (sodium zirconium cyclosilicate) is non-absorbed zirconium silicate that preferentially captures potassium in exchange for hydrogen and sodium. In vitro, LOKELMA has high affinity for potassium ions, even in the presence of other cations such as calcium and magnesium. LOKELMA increases fecal potassium excretion through binding of potassium in the lumen of the gastrointestinal tract. Binding of potassium reduces the concentration of free potassium in the gastrointestinal lumen, thereby lowering serum potassium levels.

NONCLINICAL TOXICOLOGY SECTION.

13 NONCLINICAL TOXICOLOGY. 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility. The following tests for mutagenic potential of sodium zirconium cyclosilicate were negative: (1) the Ames (S. typhimurium and E. coli) test; (2) chromosomal aberration assay in Chinese Hamster Ovary (CHO) cells; and (3) in vivo rat micronucleus assay. Given that zirconium cyclosilicate is not genotoxic, not absorbed from the gastrointestinal tract, and did not cause local gastrointestinal alterations in chronic toxicity study in dogs, carcinogenicity studies in animals to evaluate tumorigenic potential of sodium zirconium cyclosilicate were not deemed to be necessary.Fertility in male and female rats has been assessed at doses up to Human Equivalent Dose (HED) of 58 per day (the maximum feasible dose) with no adverse effects.

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL.

PACKAGE/LABEL PRINCIPAL DISPLAY PANEL 5 . NDC 0310-1105-30 Contains 30 packetsLOKELMA(R) (sodium zirconium cyclosilicate) for oral suspension5 per packetRx OnlyAstraZeneca. 5gctn.

PEDIATRIC USE SECTION.

8.4 Pediatric Use. Safety and effectiveness in pediatric patients have not been established.

PHARMACODYNAMICS SECTION.

12.2 Pharmacodynamics. In study in healthy adult subjects, LOKELMA administered as g or 10 once daily for four days caused dose-dependent increase in fecal potassium excretion. Corresponding dose-dependent decreases in urinary potassium excretion and serum potassium were also observed.In patients with hyperkalemia treated with LOKELMA 10 three times day for up to 48 hours, reductions in serum potassium were observed one hour after initiation of therapy; serum potassium concentrations continued to decline over the 48-hour treatment period [see Clinical Studies (14.2)]. In patients not continuing LOKELMA, potassium levels increased. Patients with higher starting serum potassium levels or receiving higher dose have greater reductions in serum potassium.LOKELMA causes small dose-dependent increase in serum bicarbonate concentrations (1.1 mmol/L at g once daily, 2.3 mmol/L at 10 once daily and 2.6 mmol/L at 15 once daily as compared with mean increase of 0.6 mmol/L in patients treated with placebo). The clinical significance of this finding is unclear.

PHARMACOKINETICS SECTION.

12.3 Pharmacokinetics. LOKELMA is an inorganic, insoluble compound that is not subject to enzymatic metabolism. In clinical study in patients with hyperkalemia in which zirconium concentrations were measured in the urine and blood, zirconium concentrations were similar in treated and untreated patients (i.e., either undetectable or around the lower limit of quantification of the assay). An in vivo mass balance study in rats showed that LOKELMA was recovered in the feces with no evidence of systemic absorption.. Drug Interactions. Thirty-six (36) drugs were tested to determine potential interactions with LOKELMA.Sixteen (16) drugs tested did not show an in vitro interaction with LOKELMA (allopurinol, apixaban, aspirin, captopril, cyclosporine, digoxin, ethinyl estradiol, lisinopril, magnesium, metformin, phenytoin, prednisone, propranolol, quinapril, spironolactone and ticagrelor).Nine (9) of the 20 drugs that showed an in vitro interaction were subsequently tested in vivo in healthy volunteers. Losartan, glipizide and levothyroxine did not show any changes in exposure when co-administered with LOKELMA. However, there was an increase in systemic exposure to weak acids such as furosemide and atorvastatin, and decrease in systemic exposure to weak bases such as dabigatran when co-administered with LOKELMA, as shown in Figure 2. These changes are consistent with the hypothesis that LOKELMA, by elevating gastric pH, affects the systemic exposure of co-administered drugs whose solubility is pH-dependent [see Drug Interactions (7)].Figure 2: Effects of LOKELMA on the Pharmacokinetic Exposures of Other Orally Administered Medications. figure2.

PREGNANCY SECTION.

8.1 Pregnancy. Risk Summary LOKELMA is not absorbed systemically following oral administration and maternal use is not expected to result in fetal exposure to the drug.

RECENT MAJOR CHANGES SECTION.

Warnings and Precautions (5.4) 10/2021.

SPL UNCLASSIFIED SECTION.

2.1 Recommended Dosage. For initial treatment of hyperkalemia, the recommended dose of LOKELMA is 10 administered three times day for up to 48 hours. Administer LOKELMA orally as suspension in water [see Dosage and Administration (2.3)].For continued treatment, the recommended dose is 10 once daily. Monitor serum potassium and adjust the dose of LOKELMA based on the serum potassium level and desired target range. During maintenance treatment, up-titrate based on the serum potassium level at intervals of 1-week or longer and in increments of g. Decrease the dose of LOKELMA or discontinue if the serum potassium is below the desired target range. The recommended maintenance dose range is from g every other day to 15 daily.

USE IN SPECIFIC POPULATIONS SECTION.

8 USE IN SPECIFIC POPULATIONS. 8.1 Pregnancy. Risk Summary LOKELMA is not absorbed systemically following oral administration and maternal use is not expected to result in fetal exposure to the drug.. 8.2 Lactation. Risk SummaryLOKELMA is not absorbed systemically following oral administration, and breastfeeding is not expected to result in exposure of the child to LOKELMA.. 8.4 Pediatric Use. Safety and effectiveness in pediatric patients have not been established.. 8.5 Geriatric Use. Of the total number of subjects in clinical studies of LOKELMA, 58% were age 65 and over, while 25% were 75 and over. No overall differences in safety or effectiveness were observed between these patients and younger patients.

WARNINGS AND PRECAUTIONS SECTION.

5 WARNINGS AND PRECAUTIONS. oGastrointestinal Adverse Events in Patients with Motility Disorders. (5.1)oEdema. (5.2)oHypokalemia in patients on hemodialysis. (5.3)oLOKELMA has radio-opaque properties and, therefore, may give the appearance typical of an imaging agent during abdominal X-ray procedures. (5.4). oGastrointestinal Adverse Events in Patients with Motility Disorders. (5.1). oEdema. (5.2). oHypokalemia in patients on hemodialysis. (5.3). oLOKELMA has radio-opaque properties and, therefore, may give the appearance typical of an imaging agent during abdominal X-ray procedures. (5.4). 5.1 Gastrointestinal Adverse Events in Patients with Motility Disorders Avoid use of LOKELMA in patients with severe constipation, bowel obstruction or impaction, including abnormal post-operative bowel motility disorders, because LOKELMA has not been studied in patients with these conditions and may be ineffective and may worsen gastrointestinal conditions.. 5.2 Edema Each g dose of LOKELMA contains approximately 400 mg of sodium, but the extent of absorption by the patient is unknown. In clinical trials of LOKELMA in patients who were not on dialysis, edema was observed and was generally mild to moderate in severity and was more commonly seen in patients treated with 15 once daily. Monitor for signs of edema, particularly in patients who should restrict their sodium intake or are prone to fluid overload (e.g., heart failure or renal disease). Advise patients to adjust dietary sodium, if appropriate. Increase the dose of diuretics as needed [see Adverse Reactions (6)].In clinical trial of LOKELMA in patients on chronic hemodialysis in which most patients were treated with doses of to 10 once daily on non-dialysis days, there was no difference in the mean change from baseline in interdialytic weight gain (a measure of fluid retention) between the LOKELMA and placebo groups.. 5.3 Hypokalemia in Patients on Hemodialysis Patients on hemodialysis may be prone to acute illness that can increase the risk of hypokalemia on LOKELMA (e.g., illnesses associated with decreased oral intake, diarrhea). Consider adjusting Lokelma dose based on potassium levels in these settings.. 5.4 Diagnostic Tests LOKELMA has radio-opaque properties and, therefore, may give the appearance typical of an imaging agent during abdominal X-ray procedures.