mitapivat 20 MG Oral Tablet [Pyrukynd]

INDICATIONS AND USAGE AQVESME is indicated for the treatment of anemia in adults with alpha- or beta-thalassemia. AQVESME is a pyruvate kinase activator indicated for the treatment of anemia in adults with alpha- or beta-thalassemia. ( 1.1 )

DOSAGE AND ADMINISTRATION The tablet should be swallowed whole. Do not split, crush, chew, or dissolve the tablets. ( 2.1 ) Recommended dose is 100 mg orally twice daily with or without food. ( 2.2 ) 2.1 Important Dosage and Administration Information AQVESME is taken with or without food. Swallow tablets whole. Do not split, crush, chew, or dissolve the tablets. If a dose of AQVESME is missed by 4 hours or less, administer the dose as soon as possible. If a dose of AQVESME 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. Monitor for hepatocellular injury during treatment with AQVESME [see Dosage and Administration (2.3) ] . 2.2 Recommended Dosage The recommended dosage for adults with alpha- or beta-thalassemia is AQVESME 100 mg orally twice daily. Treatment with AQVESME is intended to be long-term. Discontinue AQVESME if no benefit in hemolytic anemia has been observed, based on the totality of laboratory results and clinical status of the patient, unless there is another explanation for response failure (e.g., bleeding, surgery, other concomitant illnesses). Interruption or Discontinuation If a patient needs to interrupt or discontinue AQVESME for any reason, a dose taper is not necessary. 2.3 Monitoring for Safety Prior to Initiating Treatment with AQVESME Check liver tests including ALT, AST, alkaline phosphatase, total bilirubin with fractionation, before first AQVESME dose. During Treatment with AQVESME After the first dose, check liver tests including ALT, AST, alkaline phosphatase, total bilirubin with fractionation every 4 weeks for 24 weeks and as clinically indicated thereafter. When Drug-Induced Liver Injury Is Suspected Interrupt AQVESME and complete a comprehensive evaluation to rule out other causes of liver injury. If AQVESME-related liver injury caused new or worsening jaundice or ALT ≥10×baseline, do NOT restart AQVESME. If AQVESME-related liver injury is not ruled out, but peak ALT is <10×baseline without elevation of bilirubin above baseline, and if AQVESME is resumed, reinitiate liver test monitoring every 4 weeks for 24 additional weeks. If AQVESME-related liver injury is ruled out, AQVESME may be restarted at provider discretion. Resume liver test monitoring schedule that existed prior to stopping AQVESME. AQVESME Interruption Due to Non-Liver Causes If AQVESME was stopped for any reason for ≤8 weeks other than suspected AQVESME-related liver injury, resume the liver test monitoring schedule that existed prior to stopping AQVESME. If AQVESME was stopped for more than 8 weeks, restart liver test monitoring every 4 weeks for 24 additional weeks upon resumption of treatment with AQVESME. If treatment is stopped for any duration after 24 weeks of monitoring and treatment, resume monitoring as clinically indicated. 2.4 Recommended Dosage for Drug Interactions Moderate CYP3A Inducers 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 orally twice daily [see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ] .

WARNINGS 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 >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 [see Dosage and Administration (2.3) ] . 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 >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 [see Warnings and Precautions (5.2) ] . 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.

CONTRAINDICATIONS None. None. ( 4 )

Mechanism of Action Mitapivat is a pyruvate kinase activator that acts by allosterically binding to the pyruvate kinase tetramer and increasing pyruvate kinase (PK) activity. Imbalances in globin chain production during erythropoiesis result in increased oxidative stress, which leads to ineffective erythropoiesis and hemolysis. In nonclinical models of beta-thalassemia, mitapivat improved energy homeostasis, RBC longevity, ineffective erythropoiesis, and hemolysis by increasing PK activity.