STEGLATRO

STEGLATRO (ertugliflozin) tablets for oral use contain ertugliflozin L-pyroglutamic acid, a SGLT2 inhibitor. The chemical name of ertugliflozin L-pyroglutamic acid is (1 S ,2 S ,3 S ,4 R ,5 S )-5-(4-chloro-3-(4-ethoxybenzyl)phenyl)-1-(hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol, compound with (2 S )-5-oxopyrrolidine-2-carboxylic acid. The molecular formula is C 27 H 32 ClNO 10 and the molecular weight is 566.00. The chemical structure is: Ertugliflozin L-pyroglutamic acid is a white to off-white powder that is soluble in ethyl alcohol and acetone, slightly soluble in ethyl acetate and acetonitrile and very slightly soluble in water. STEGLATRO is supplied as film-coated tablets, containing 6.48 or 19.43 mg of ertugliflozin L-pyroglutamic acid, which is equivalent to 5 and 15 mg of ertugliflozin. Inactive ingredients are microcrystalline cellulose, lactose monohydrate, sodium starch glycolate, and magnesium stearate. The film coating contains: hypromellose, lactose monohydrate, macrogol, triacetin, titanium dioxide and iron oxide red. Chemical Structure

STEGLATRO ® is indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. STEGLATRO is a sodium glucose co-transporter 2 (SGLT2) inhibitor indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. ( 1 ) Limitations of Use: Not recommended for use to improve glycemic control in patients with type 1 diabetes mellitus. ( 1 ) Limitations of Use Not recommended for use to improve glycemic control in patients with type 1 diabetes mellitus [see Warnings and Precautions (5.1) ] .

Assess renal function before initiating and as clinically indicated. ( 2.1 ) Correct volume depletion before initiating STEGLATRO. ( 2.1 ) Recommended starting dosage is 5 mg orally once daily, taken in the morning, with or without food. ( 2.2 ) Increase dosage to 15 mg orally once daily in those tolerating STEGLATRO and needing additional glycemic control. ( 2.2 ) Use is not recommended in patients with an estimated glomerular filtration rate (eGFR) less than 45 mL/min/1.73 m 2 . ( 2.2 ) Withhold STEGLATRO for at least 4 days, if possible, prior to surgery or procedures associated with prolonged fasting. ( 2.3 ) 2.1 Prior to Initiation of STEGLATRO Assess renal function before initiating STEGLATRO and as clinically indicated [see Warnings and Precautions (5.3) ] . Assess volume status. In patients with volume depletion, correct this condition before initiating STEGLATRO [see Warnings and Precautions (5.3) and Use in Specific Populations (8.5 , 8.6) ]. 2.2 Recommended Dosage The recommended starting dosage of STEGLATRO is 5 mg orally once daily, taken in the morning, with or without food. For additional glycemic control, the dosage may be increased to 15 mg orally once daily in patients tolerating STEGLATRO. Use of STEGLATRO is not recommended in patients with an estimated glomerular filtration rate (eGFR) less than 45 mL/min/1.73 m 2 . 2.3 Temporary Interruption for Surgery Withhold STEGLATRO for at least 4 days, if possible, prior to surgery or procedures associated with prolonged fasting. Resume STEGLATRO when the patient is clinically stable and has resumed oral intake [see Warnings and Precautions (5.1) and Clinical Pharmacology (12.2) ].

STEGLATRO is contraindicated in patients with hypersensitivity to ertugliflozin or any excipient in STEGLATRO. Reactions such as angioedema have occurred [see Adverse Reactions (6.2) ]. Hypersensitivity to ertugliflozin or any of the excipients in STEGLATRO. ( 4 )

The following important adverse reactions are described elsewhere in the labeling: Diabetic Ketoacidosis in Patients with Type 1 Diabetes and Other Ketoacidosis [see Warnings and Precautions (5.1) ] Lower Limb Amputation [see Warnings and Precautions (5.2) ] Volume Depletion [see Warnings and Precautions (5.3) ] Urosepsis and Pyelonephritis [see Warnings and Precautions (5.4) ] Hypoglycemia with Concomitant Use with Insulin or Insulin Secretagogues [see Warnings and Precautions (5.5) ] Necrotizing Fasciitis of the Perineum (Fournier's Gangrene) [see Warnings and Precautions (5.6) ] Genital Mycotic Infections [see Warnings and Precautions (5.7) ] Most common adverse reactions (incidence ≥ 5%) were female genital mycotic infections. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Merck Sharp & Dohme LLC at 1-877-888-4231 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 rates in the clinical trials of another drug and may not reflect the rates observed in practice. Pool of Placebo-Controlled Trials Evaluating STEGLATRO 5 and 15 mg The data in Table 1 are derived from a pool of three 26-week, placebo-controlled trials. STEGLATRO was used as monotherapy in one trial and as add-on therapy in two trials [see Clinical Studies (14) ] . These data reflect exposure of 1,029 patients to STEGLATRO with a mean exposure duration of approximately 25 weeks. Patients received STEGLATRO 5 mg (N=519), STEGLATRO 15 mg (N=510), or placebo (N=515) once daily. The mean age of the population was 57 years and 2% were older than 75 years of age. Fifty-three percent (53%) of the population was male and 73% were White, 15% were Asian, and 7% were Black or African American. At baseline the population had diabetes for an average of 7.5 years, had a mean HbA1c of 8.1%, and 19.4% had established microvascular complications of diabetes. Baseline renal function (mean eGFR 88.9 mL/min/1.73 m 2 ) was normal or mildly impaired in 97% of patients and moderately impaired in 3% of patients. Table 1 shows common adverse reactions associated with the use of STEGLATRO. These adverse reactions were not present at baseline, occurred more commonly on STEGLATRO than on placebo, and occurred in at least 2% of patients treated with either STEGLATRO 5 mg or STEGLATRO 15 mg. Table 1: Adverse Reactions Reported in ≥2% of Patients with Type 2 Diabetes Mellitus Treated with STEGLATRO The three placebo-controlled studies included one monotherapy trial and two add-on combination trials with metformin HCl or with metformin HCl and sitagliptin. and Greater than Placebo in Pooled Placebo-Controlled Clinical Studies of STEGLATRO Monotherapy or Combination Therapy Number (%) of Patients Placebo N = 515 STEGLATRO 5 mg N = 519 STEGLATRO 15 mg N = 510 Female genital mycotic infections Includes: genital candidiasis, genital infection fungal, vaginal infection, vulvitis, vulvovaginal candidiasis, vulvovaginal mycotic infection, and vulvovaginitis. Percentages calculated with the number of female patients in each group as denominator: placebo (N=235), STEGLATRO 5 mg (N=252), STEGLATRO 15 mg (N=245). 3.0% 9.1% 12.2% Male genital mycotic infections Includes: balanitis candida, balanoposthitis, genital infection, and genital infection fungal. Percentages calculated with the number of male patients in each group as denominator: placebo (N=280), STEGLATRO 5 mg (N=267), STEGLATRO 15 mg (N=265). 0.4% 3.7% 4.2% Urinary tract infections Includes: cystitis, dysuria, streptococcal urinary tract infection, urethritis, urinary tract infection. 3.9% 4.0% 4.1% Headache 2.3% 3.5% 2.9% Vaginal pruritus Includes: vulvovaginal pruritus and pruritus genital. Percentages calculated with the number of female patients in each group as denominator: placebo (N=235), ertugliflozin 5 mg (N=252), ertugliflozin 15 mg (N=245). 0.4% 2.8% 2.4% Increased urination Includes: pollakiuria, micturition urgency, polyuria, urine output increased, and nocturia. 1.0% 2.7% 2.4% Nasopharyngitis 2.3% 2.5% 2.0% Back pain 2.3% 1.7% 2.5% Weight decreased 1.0% 1.2% 2.4% Thirst Includes: thirst, dry mouth, polydipsia, and dry throat. 0.6% 2.7% 1.4% Volume Depletion STEGLATRO causes an osmotic diuresis, which may lead to intravascular volume contraction and adverse reactions related to volume depletion, particularly in patients with impaired renal function (eGFR less than 60 mL/min/1.73 m 2 ). In patients with moderate renal impairment, adverse reactions related to volume depletion (e.g., dehydration, dizziness postural, presyncope, syncope, hypotension, and orthostatic hypotension) were reported in 0%, 4.4%, and 1.9% of patients treated with placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively. STEGLATRO may also increase the risk of hypotension in other patients at risk for volume contraction [see Use in Specific Populations (8.5 , 8.6) ] . Hypoglycemia The incidence of hypoglycemia by study is shown in Table 2 . Table 2: Incidence of Overall Overall hypoglycemic events: plasma or capillary glucose of less than or equal to 70 mg/dL. and Severe Severe hypoglycemic events: required assistance, lost consciousness, or experienced a seizure regardless of blood glucose. Hypoglycemia in Placebo-Controlled Clinical Studies in Patients with Type 2 Diabetes Mellitus Monotherapy (26 weeks) Placebo (N = 153) STEGLATRO 5 mg (N =156) STEGLATRO 15 mg (N = 152) Overall [N (%)] 1 (0.7) 4 (2.6) 4 (2.6) Severe [N (%)] 0 (0.0) 0 (0.0) 2 (1.3) Add-on Combination Therapy with Metformin HCl (26 weeks) Placebo (N = 209) STEGLATRO 5 mg (N = 207) STEGLATRO 15 mg (N = 205) Overall [N (%)] 9 (4.3) 15 (7.2) 16 (7.8) Severe [N (%)] 1 (0.5) 1 (0.5) 0 (0.0) Add-on Combination Therapy with Metformin HCl and Sitagliptin (26 weeks) Placebo (N = 153) STEGLATRO 5 mg (N = 156) STEGLATRO 15 mg (N = 153) Overall [N (%)] 5 (3.3) 7 (4.5) 3 (2.0) Severe [N (%)] 1 (0.7) 1 (0.6) 0 (0.0) In Combination with Insulin and/or an Insulin Secretagogue in Patients with Moderate Renal Impairment (26 weeks) Placebo (N = 133) STEGLATRO 5 mg (N = 148) STEGLATRO 15 mg (N = 143) Overall [N (%)] 48 (36.1) 53 (35.8) 39 (27.3) Severe [N (%)] 3 (2.3) 5 (3.4) 3 (2.1) Add-on Combination with Insulin with or without Metformin HCl (18 weeks) Placebo (N = 347) STEGLATRO 5 mg (N = 348) STEGLATRO 15 mg (N = 370) Overall [N (%)] 130 (37.5) 137 (39.4) 144 (38.9) Severe [N (%)] 12 (3.5) 13 (3.7) 19 (5.1) Add-on Combination with a Sulfonylurea (18 weeks) Placebo (N =48) STEGLATRO 5 mg (N =55) STEGLATRO 15 mg (N =54) Overall [N (%)] 2 (4.2) 4 (7.3) 5 (9.3) Severe [N (%)] 0 (0.0) 0 (0.0) 0 (0.0) Add-on Combination with Metformin HCl and a Sulfonylurea (18 weeks) Placebo (N = 117) STEGLATRO 5 mg (N = 100) STEGLATRO 15 mg (N = 113) Overall [N (%)] 17 (14.5) 20 (20.0) 30 (26.5) Severe [N (%)] 1 (0.9) 2 (2.0) 2 (1.8) Lower Limb Amputation In a long-term cardiovascular outcomes study [see Clinical Studies (14.2) ] , in patients with type 2 diabetes mellitus and established cardiovascular disease, the occurrence of non-traumatic lower limb amputations was reported with event rates of 4.7, 5.7, and 6.0 events per 1,000 patient-years in the placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg treatment arms, respectively. Across seven STEGLATRO clinical trials, non-traumatic lower limb amputations were reported in 1 (0.1%) patient in the comparator group, 3 (0.2%) patients in the STEGLATRO 5 mg group, and 8 (0.5%) patients in the STEGLATRO 15 mg group. Genital Mycotic Infections In the pool of three placebo-controlled clinical trials, the incidence of female genital mycotic infections (e.g., genital candidiasis, genital infection fungal, vaginal infection, vulvitis, vulvovaginal candidiasis, vulvovaginal mycotic infection, vulvovaginitis) occurred in 3%, 9.1%, and 12.2% of females treated with placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively (see Table 1 ). In females, discontinuation due to genital mycotic infections occurred in 0% and 0.6% of patients treated with placebo and STEGLATRO, respectively. In the same pool, male genital mycotic infections (e.g., balanitis candida, balanoposthitis, genital infection, genital infection fungal) occurred in 0.4%, 3.7%, and 4.2% of males treated with placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively (see Table 1 ). Male genital mycotic infections occurred more commonly in uncircumcised males. In males, discontinuations due to genital mycotic infections occurred in 0% and 0.2% of patients treated with placebo and STEGLATRO, respectively. Phimosis was reported in 8 of 1729 (0.5%) male ertugliflozin-treated patients, of which four required circumcision. Urinary Tract Infections In VERTIS CV, urinary tract infections (e.g., urinary tract infection, cystitis, dysuria) occurred in 10.2%, 12.2% and 12.0% of patients treated with placebo, STEGLATRO 5 mg and STEGLATRO 15 mg, respectively. The incidences of serious urinary tract infections were 0.8%, 0.9% and 0.4% with placebo, STEGLATRO 5 mg and STEGLATRO 15 mg, respectively. Laboratory Tests Changes in Serum Creatinine and eGFR Initiation of STEGLATRO causes an increase in serum creatinine and decrease in eGFR within weeks of starting therapy and then these changes stabilize. In a study of patients with moderate renal impairment, larger mean changes were observed. In a long-term cardiovascular outcomes trial, an initial increase in serum creatinine and a decrease in eGFR within weeks of starting therapy was observed (at Week 6 eGFR changes of -2.7, -3.8 and -0.4 mL/min/1.73 m 2 in the STEGLATRO 5 mg, STEGLATRO 15 mg and placebo arms, respectively). The initial decline was followed by a recovery toward baseline to Week 52 (eGFR change from baseline of - 0.4, - 1.1 and - 0.2 mL/min/1.73 m 2 in STEGLATRO 5 mg, STEGLATRO 15 mg, and placebo arms, respectively). Acute hemodynamic changes may play a role in the early renal function changes observed with STEGLATRO since they are reversed after treatment discontinuation. Increases in Low-Density Lipoprotein Cholesterol (LDL-C) In the pool of three placebo-controlled trials, dose-related increases in LDL-C were observed in patients treated with STEGLATRO. Mean percent changes from baseline to Week 26 in LDL-C relative to placebo were 2.6% and 5.4% with STEGLATRO 5 mg and STEGLATRO 15 mg, respectively. The range of mean baseline LDL-C was 96.6 to 97.7 mg/dL across treatment groups. Increases in Hemoglobin In the pool of three placebo-controlled trials, mean changes (percent changes) from baseline to Week 26 in hemoglobin were -0.21 g/dL (-1.4%) with placebo, 0.46 g/dL (3.5%) with STEGLATRO 5 mg, and 0.48 g/dL (3.5%) with STEGLATRO 15 mg. The range of mean baseline hemoglobin was 13.90 to 14.00 g/dL across treatment groups. At the end of treatment, 0.0%, 0.2%, and 0.4% of patients treated with placebo, STEGLATRO 5 mg, and STEGLATRO 15 mg, respectively, had a hemoglobin increase greater than 2 g/dL and above the upper limit of normal. Increases in Serum Phosphate In the pool of three placebo-controlled trials, mean changes (percent changes) from baseline in serum phosphate were 0.04 mg/dL (1.9%) with placebo, 0.21 mg/dL (6.8%) with STEGLATRO 5 mg, and 0.26 mg/dL (8.5%) with STEGLATRO 15 mg. The range of mean baseline serum phosphate was 3.53 to 3.54 mg/dL across treatment groups. In a clinical trial of patients with moderate renal impairment, mean changes (percent changes) from baseline at Week 26 in serum phosphate were -0.01 mg/dL (0.8%) with placebo, 0.29 mg/dL (9.7%) with STEGLATRO 5 mg, and 0.24 mg/dL (7.8%) with STEGLATRO 15 mg. 6.2 Postmarketing Experience Additional adverse reactions have been identified during postapproval use of STEGLATRO. Because these reactions are reported voluntarily from a population of uncertain size, it is generally not possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Infections: necrotizing fasciitis of the perineum (Fournier's Gangrene) Skin and Subcutaneous Tissue Disorders: angioedema, rash

Table 3: Clinically Significant Drug Interactions with STEGLATRO Insulin or Insulin Secretagogues Clinical Impact: The risk of hypoglycemia is increased when STEGLATRO is used in combination with insulin or an insulin secretagogue. Intervention: A lower dose of insulin or insulin secretagogue may be required to minimize the risk of hypoglycemia when used in combination with STEGLATRO. Lithium Clinical Impact: Concomitant use of an SGLT2 inhibitor with lithium may decrease serum lithium concentrations. Intervention: Monitor serum lithium concentration more frequently during STEGLATRO initiation and dosage changes. Positive Urine Glucose Test Clinical Impact: SGLT2 inhibitors increase urinary glucose excretion and will lead to positive urine glucose tests. Intervention: Monitoring glycemic control with urine glucose tests is not recommended in patients taking SGLT2 inhibitors. Use alternative methods to monitor glycemic control. Interference with 1,5-anhydroglucitol (1,5-AG) Assay Clinical Impact: Measurements of 1,5-AG are unreliable in assessing glycemic control in patients taking SGLT2 inhibitors. Intervention: Monitoring glycemic control with 1,5-AG assay is not recommended. Use alternative methods to monitor glycemic control. See full prescribing information for information on drug interactions and interference of STEGLATRO with laboratory tests. ( 7 )

Store at 20°C -25°C (68°F -77°F), excursions permitted between 15°C -30°C (between 59°F -86°F) [see USP Controlled Room Temperature]. Protect from moisture. Store in a dry place.