MITAPIVAT: 627 Adverse Event Reports & Safety Profile

The active ingredient of PYRUKYND is mitapivat, a pyruvate kinase activator, present as mitapivat sulfate. The chemical name of mitapivat sulfate is 8-quinolinesulfonamide, N-[4-[[4- (cyclopropylmethyl)-1-piperazinyl]carbonyl]phenyl]-, sulfate, hydrate (2:1:3). The chemical structure of mitapivat sulfate is: The molecular formula is (C 24 H 26 N 4 SO 3 ) 2

• H 2 SO 4
• 3H 2 O, and the molecular weight is 1053.23 for mitapivat sulfate. Mitapivat sulfate is a white to off-white solid and is slightly soluble in water. PYRUKYND is available as 5 mg, 20 mg, and 50 mg tablets for oral administration. Each tablet contains 5 mg, 20 mg, or 50 mg mitapivat free base, provided as 5.85 mg, 23.4 mg, or 58.5 mg, respectively, of the sulfate hydrate salt, and the following inactive ingredients: croscarmellose sodium, mannitol, microcrystalline cellulose, and sodium stearyl fumarate. The tablet film coating contains the inactive ingredients FD&C Blue No. 2, hypromellose, lactose monohydrate, titanium dioxide, and triacetin. The tablets are imprinted with black ink containing the inactive ingredients ammonium hydroxide, ferrosoferric oxide, isopropyl alcohol, n-butyl alcohol, propylene glycol, and shellac glaze. chemical structure

AND USAGE PYRUKYND is indicated for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency. PYRUKYND is a pyruvate kinase activator indicated for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency. ( 1 )

AND ADMINISTRATION PYRUKYND is taken orally with or without food. The tablets should be swallowed whole. Do not split, crush, chew, or dissolve the tablets. Starting dosage: 5 mg orally twice daily with or without food. ( 2.1 )

See Full Prescribing

Information for dose titration and taper schedule. ( 2.1 , 2.3 ) The tablet should be swallowed whole. ( 2.1 )

2.1 Recommended Dose PYRUKYND is taken with or without food and swallowed whole. Do not split, crush, chew, or dissolve the tablets. The starting dosage for PYRUKYND is 5 mg orally twice daily. To gradually increase hemoglobin (Hb), titrate PYRUKYND from 5 mg twice daily to 20 mg twice daily, and then to the maximum recommended dose of 50 mg twice daily, with these dose increases occurring every 4 weeks (see Table 1). Assess Hb and transfusion requirement before increasing to the next dose level, as some patients may reach and maintain normal Hb at 5 mg twice daily or 20 mg twice daily. Discontinue PYRUKYND if no benefit has been observed by 24 weeks, based on the hemoglobin and hemolysis laboratory results and transfusion requirements.

Table

1: Dose Titration Schedule Duration Dosage Week 1 through Week 4 5 mg twice daily Week 5 through Week 8 If Hb is below normal range or patient has required a transfusion within the last 8 weeks: Increase to 20 mg twice daily and maintain for 4 weeks. If Hb is within normal range and patient has not required a transfusion within the last 8 weeks: Maintain 5 mg twice daily.

Week

9 through Week 12 If Hb is below normal range or patient has required a transfusion within the last 8 weeks: Increase to 50 mg twice daily and maintain thereafter. If Hb is within normal range and patient has not required a transfusion within the last 8 weeks: Maintain current dose (5 mg twice daily or 20 mg twice daily). Maintenance If Hb decreases, consider up-titration to the maximum of 50 mg twice daily as per the above schedule.

2.2 Missed Dose If a dose of PYRUKYND is missed by 4 hours or less, administer the dose as soon as possible. If a dose of PYRUKYND is missed by more than 4 hours, do not administer a replacement dose, and wait until the next scheduled dose. Subsequently, return to the normal dosing schedule.

2.3 Interruption or Discontinuation To reduce the risk of acute hemolysis, avoid abrupt interruption or abrupt discontinuation of PYRUKYND when possible <span class="opacity-50 text-xs">[see Warnings and Precautions (5.1) ]</span> . Taper the dose to gradually discontinue the medication (see Table 2). Monitor patients for signs of acute hemolysis and worsening of anemia.

Table

2 Dose Taper Schedule Current Dose Dose Taper Schedule Day 1-7 Day 8-14 Day 15 5 mg twice daily 5 mg once daily Discontinue N/A 20 mg twice daily 20 mg once daily 5 mg once daily Discontinue 50 mg twice daily 50 mg once daily 20 mg once daily Discontinue Abbreviations: N/A = not applicable.

2.4 Recommended Dosage for Drug Interactions Strong CYP3A Inhibitors Avoid co-administration of strong CYP3A inhibitors with PYRUKYND <span class="opacity-50 text-xs">[see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ]</span> . Moderate CYP3A Inhibitors Monitor Hb and for increased risks of adverse reactions from PYRUKYND. When used with a moderate CYP3A inhibitor, do not titrate PYRUKYND beyond 20 mg twice daily <span class="opacity-50 text-xs">[see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ]</span> . Strong CYP3A Inducers Avoid co-administration of strong CYP3A inducers with PYRUKYND <span class="opacity-50 text-xs">[see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ]</span> . Moderate CYP3A Inducers Consider alternative therapies that are not moderate CYP3A inducers during treatment with PYRUKYND. If there are no alternative therapies, monitor Hb and titrate beyond the 50 mg twice daily dose, if necessary, but do not exceed a maximum recommended dose of 100 mg twice daily <span class="opacity-50 text-xs">[see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ]</span> .

2.5 Dose Modifications for Adverse Reactions and Hemoglobin Levels Above Normal If a dose reduction is required because of an adverse reaction or tolerability, or for Hb above normal, the dose may be reduced to the next lower dose level, 20 mg twice daily or 5 mg twice daily. If a patient needs to discontinue PYRUKYND, the dose taper schedule (Table 2) should be followed. In situations where the risk to the patient due to the adverse reaction or Hb above normal is greater than the risk of acute hemolysis due to sudden withdrawal of the drug, treatment may be stopped without taper and patients should be monitored for signs of acute hemolysis.

None. None. ( 4 )

REACTIONS The following clinically significant adverse reaction is described elsewhere in labeling: Hepatocellular Injury [see Warnings and Precautions (5.1) ]. The most common adverse reactions were headache and insomnia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Agios Pharmaceuticals, Inc. at 1-833-228-8474 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. Alpha- and Beta-Thalassemia A total of 301 patients with thalassemia received AQVESME, administered at 100 mg orally twice daily, for up to 59.9 weeks in the ENERGIZE trial (N=129) and the ENERGIZE-T trial (N=172) <span class="opacity-50 text-xs">[see Clinical Studies (14) ]</span> .

Energize

Trial Patients with non-transfusion-dependent thalassemia received AQVESME (N=129) or placebo (N=63). The most common adverse reactions (≥5% and at least 5% higher in the AQVESME arm) in patients with non-transfusion-dependent thalassemia were headache and insomnia. ENERGIZE-T Trial Patients with transfusion-dependent thalassemia received AQVESME (N=172) or placebo (N=85). The most common adverse reactions (≥5% and at least 5% higher in the AQVESME arm) in patients with transfusion-dependent thalassemia were headache and insomnia. Serious adverse reactions occurred in 1.3% of patients with thalassemia treated with AQVESME, including supraventricular arrhythmia and supraventricular tachycardia. Permanent discontinuations of AQVESME due to an adverse reaction occurred in 1.3% of patients and included elevated hepatic transaminases and insomnia.

Table

1 summarizes the adverse reactions in the ENERGIZE and the ENERGIZE-T trials, individually and combined.

Table

1: Adverse Reactions a in Patients with Alpha- and Beta-Thalassemia Receiving AQVESME ENERGIZE (Non-transfusion-dependent) ENERGIZE-T (Transfusion-dependent)

Total Adverse

Reactions AQVESME (N=129) n (%) Placebo (N=63) n (%) AQVESME (N=172) n (%) Placebo (N=85) n (%) AQVESME (N=301) n (%) Placebo (N=148) n (%)

Headache

29 (22.5) 6 (9.5) 46 (26.7) 10 (11.8) 75 (24.9) 16 (10.8) Insomnia b 35 (27.1) 5 (7.9) 38 (22.1) 8 (9.4) 73 (24.3) 13 (8.8) a Included adverse reactions that occurred in at least 5% of patients in the AQVESME arm and at least 5% higher than the placebo arm. b Term includes initial insomnia, middle insomnia, and terminal insomnia. Variations in Reproductive Hormones Increases in serum testosterone (T) concentrations and decreases in serum estradiol (E2) concentrations were observed in men receiving AQVESME (Table 2). These changes in hormones were maintained during treatment with AQVESME.

In

3 male patients who discontinued AQVESME and in whom reproductive hormone data were available following discontinuation of AQVESME, the hormone changes were reversible. In female patients, sex hormone analysis was limited due to physiologic variations in hormones during the menstrual cycle and the use of hormonal contraceptives.

Table

2: Abnormalities in Reproductive Hormones in Men with Thalassemia Receiving AQVESME ENERGIZE (Non-transfusion-dependent) ENERGIZE-T (Transfusion-dependent) Parameter AQVESME (46 males) Placebo (25 males) AQVESME (64 males) Placebo (31 males) Reproductive hormone analyses Testosterone (T) Serum T concentration (mean)

Baseline

Change from baseline 613 ng/dL 228 ng/dL 505 ng/dL -2.8 ng/dL 625 ng/dL 108 ng/dL 666 ng/dL 66 ng/dL Serum T increased a Baseline Change from baseline 2.2% 18.6% 4.3% 0% 3.3% 13.5% 10% 6.9% Estradiol (E2) Serum E2 concentration (mean)

Baseline

Change from baseline 29.6 pg/mL -8.7 pg/mL 27.3 pg/mL 0 pg/mL 26.4 pg/mL -5.0 pg/mL 28.9 pg/mL 1.6 pg/mL Serum E2 decreased b Baseline Change from baseline 0% 2.5% 9.5% 0% 10.2% 8.5% 6.9% 3.6% a Percentage of subjects with serum T concentration above the upper limit of normal (greater than 1050 ng/dL) at baseline and percentage of subjects with serum T increases from baseline to above the upper limit of normal where baseline was within normal limits. b Percentage of subjects with serum E2 concentration below the lower limit of normal at baseline and percentage of subjects with serum E2 decreases from baseline to below the lower limit of normal where baseline was within normal limits. Note: Results from the ENERGIZE-T study do not include data from patients who received concomitant testosterone replacement therapies.

AND PRECAUTIONS

5.1 Hepatocellular Injury AQVESME can cause hepatocellular injury. Avoid use of AQVESME in patients with cirrhosis. In patients with thalassemia treated with AQVESME, liver injury with and without jaundice has been observed within the first 6 months of exposure. Obtain liver tests (including ALT, AST, alkaline phosphatase, total bilirubin with fractionation) prior to the initiation of AQVESME, then every 4 weeks for the first 24 weeks, and as clinically indicated thereafter. Interrupt AQVESME if clinically significant increases in liver tests are observed or alanine aminotransferase is &gt;5 times the upper limit of normal (ULN). Complete a comprehensive evaluation to rule out other causes of liver injury when drug-induced liver injury (DILI) is suspected. Discontinue AQVESME if hepatocellular injury due to AQVESME is suspected <span class="opacity-50 text-xs">[see Dosage and Administration (2.3) ]</span> . Symptoms and signs of early liver injury may mimic those of thalassemia. Advise patients to report new or worsening symptoms of loss of appetite, nausea, right upper quadrant abdominal pain, vomiting, scleral icterus, jaundice, or dark urine while on AQVESME treatment. During the double-blind period, 2 of 301 patients (0.66%) with thalassemia treated with AQVESME experienced adverse reactions suggestive of hepatocellular injury. Three additional patients experienced adverse reactions suggestive of hepatocellular injury during the open-label extension periods after switching from placebo to AQVESME. Of these 5 patients, two had serious liver injury and were hospitalized including 1 patient who developed jaundice (peak bilirubin 32 mg/dL). Another patient developed jaundice (peak bilirubin 4 mg/dL) without being hospitalized. These reactions were characterized by a time to onset within the first 6 months of treatment with peak elevations of alanine aminotransferase of &gt;5×ULN with or without jaundice. All patients discontinued treatment with AQVESME, and these reactions improved upon treatment discontinuation. AQVESME is available only through a restricted program under a REMS <span class="opacity-50 text-xs">[see Warnings and Precautions (5.2) ]</span> .

5.2 AQVESME REMS AQVESME is available only through a restricted program under a REMS called the AQVESME REMS because of the risk of hepatocellular injury. Notable requirements of the AQVESME REMS include the following: Prescribers must be certified by enrolling in the REMS and completing training. Prescribers must counsel patients receiving AQVESME about the risk of hepatocellular injury. Prescribers must monitor liver tests (including ALT, AST, alkaline phosphatase, total bilirubin with fractionation, and other tests as clinically indicated) to determine if the patient is appropriate to receive AQVESME treatment. Patients must enroll in the REMS and comply with the monitoring requirements. Pharmacies must be certified by enrolling in the REMS and must only dispense to patients who are authorized to receive AQVESME. Further information is available at www.aqvesmerems.com or 1-800-625-9951.

INTERACTIONS Strong CYP3A Inhibitors and Inducers: Avoid concomitant use. ( 7.1 ) Moderate CYP3A Inhibitors: Avoid concomitant use. ( 7.1 ) Moderate CYP3A Inducers: Consider alternatives that are not moderate inducers. If there are no alternatives, see Full Prescribing Information for recommended dosage for drug interactions with moderate CYP3A inducers. ( 2.4 , 7.1 ) Sensitive CYP3A substrates including hormonal contraceptives: Avoid concomitant use with substrates that have narrow therapeutic index. ( 7.2 ) CYP2B6, CYP2C and UGT1A1 Substrates: Monitor patients for efficacy of the substrates with narrow therapeutic index. ( 7.2 ) P-gp Substrates: Monitor patients for adverse reactions of the substrates with narrow therapeutic index. ( 7.2 )

7.1 Effect of Other Drugs on AQVESME Strong CYP3A Inhibitors Clinical Impact Co-administration of AQVESME with strong CYP3A inhibitors increased mitapivat plasma concentrations <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Increased mitapivat plasma concentrations may increase the risks of adverse reactions of AQVESME. Prevention or Management Avoid co-administration of strong CYP3A inhibitors with AQVESME <span class="opacity-50 text-xs">[see Dosage and Administration (2.4) ]</span> . Moderate CYP3A Inhibitors Clinical Impact Co-administration of AQVESME with moderate CYP3A inhibitors will increase mitapivat plasma concentrations <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Prevention or Management Avoid co-administration of moderate CYP3A inhibitors with AQVESME <span class="opacity-50 text-xs">[see Dosage and Administration (2.4) ]</span> . Strong CYP3A Inducers Clinical Impact Co-administration of AQVESME with strong CYP3A inducers decreased mitapivat plasma concentrations <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Decreased mitapivat plasma concentrations will reduce the efficacy of AQVESME. Prevention or Management Avoid co-administration of strong CYP3A inducers with AQVESME <span class="opacity-50 text-xs">[see Dosage and Administration (2.4) ]</span> . Moderate CYP3A Inducers Clinical Impact Co-administration of AQVESME with moderate CYP3A inducers will decrease mitapivat plasma concentrations <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Prevention or Management Consider alternative therapies that are not moderate CYP3A inducers during treatment with AQVESME. If there are no alternative therapies, monitor Hb and do not exceed the maximum recommended dose of 100 mg twice daily <span class="opacity-50 text-xs">[see Dosage and Administration (2.4) ]</span> .

7.2 Effect of AQVESME on Other Drugs CYP3A Substrates Clinical Impact AQVESME induces CYP3A. Co-administration of AQVESME will decrease systemic concentrations of drugs that are sensitive CYP3A substrates, including hormonal contraceptives (e.g., ethinyl estradiol) <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Prevention or Management Avoid co-administration of AQVESME with sensitive CYP3A substrates that have narrow therapeutic index when co-administered with AQVESME. Avoid concomitant use with hormonal contraceptives except for intrauterine systems containing levonorgestrel. If contraception is desired or needed, use an alternative contraceptive that is not affected by enzyme inducers. If concomitant use is unavoidable, use additional nonhormonal contraception during concomitant use and for 28 days after discontinuation of AQVESME. CYP2B6 and CYP2C Substrates Clinical Impact AQVESME induces CYP2B6, CYP2C8, CYP2C9, and CYP2C19 enzymes in vitro , and may decrease systemic concentrations of drugs that are sensitive substrates of these enzymes <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Prevention or Management Monitor patients for loss of therapeutic effect of sensitive substrates of these enzymes with narrow therapeutic index when co-administered with AQVESME. UGT1A1 Substrates Clinical Impact AQVESME induces UGT1A1 in vitro and may decrease systemic concentrations of drugs that are UGT1A1 substrates <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Prevention or Management Monitor patients for loss of therapeutic effect of UGT1A1 substrates with narrow therapeutic index when co-administered with AQVESME. P-gp Substrates Clinical Impact AQVESME inhibits the P-gp transporter in vitro and may increase systemic concentrations of drugs that are P-gp substrates <span class="opacity-50 text-xs">[see Clinical Pharmacology (12.3) ]</span> . Prevention or Management Monitor patients for adverse reactions of P-gp substrates with narrow therapeutic index when co-administered with AQVESME.