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posaconazole

RxNorm 1492043· POSACONAZOLE· INTRAVENOUS

Azole Antifungal [EPC] · GLENMARK PHARMACEUTICALS INC., USA

Indications and usage

1 INDICATIONS AND USAGE Posaconazole is an azole antifungal indicated as follows: • Posaconazole injection is indicated for the treatment of invasive aspergillosis in adults and pediatric patients 13 years of age and older. ( 1.1 ) • Posaconazole injection is indicated for the prophylaxis of invasive Aspergillus and Candida infections in patients who are at high risk of developing these infections due to being severely immunocompromised, such as hematopoietic stem cell transplant (HSCT) recipients with graft- versus-host disease (GVHD) or those with hematologic malignancies with prolonged neutropenia from chemotherapy as follows: ( 1.2 ) o Posaconazole injection: adults and pediatric patients 2 years of age and older. 1.1 Treatment of Invasive Aspergillosis Posaconazole injection is indicated for the treatment of invasive aspergillosis in adults and pediatric patients 13 years of age and older. 1.2 Prophylaxis of Invasive Aspergillus and Candida Infections Posaconazole injection is indicated for the prophylaxis of invasive Aspergillus and Candida infections in patients who are at high risk of developing these infections due to being severely immunocompromised, such as hematopoietic stem cell transplant (HSCT) recipients with graft-versus-host disease (GVHD) or those with hematologic malignancies with prolonged neutropenia from chemotherapy [see Clinical Studies ( 14.1 )] as follows: • Posaconazole injection: adults and pediatric patients 2 years of age and older

Dosage and administration

2 DOSAGE AND ADMINISTRATION • Posaconazole injection must be administered through an in-line filter. • Administer posaconazole injection by intravenous infusion over approximately 90 minutes via a central venous line. ( 2.1 ) • Do NOT administer posaconazole injection as an intravenous bolus injection. ( 2.1 ) Table 1: Recommended Dosage in Adult Patients Indication Dosage Form, Dose, and Duration of Therapy Treatment of invasive Aspergillosis Posaconazole Injection: Loading dose: 300 mg posaconazole injection intravenously twice a day on the first day. Maintenance dose: 300 mg posaconazole injection intravenously once a day thereafter. Recommended total duration of therapy is 6 to 12 weeks. ( 2.2 ) Switching between the intravenous and Noxafil ® delayed-release tablets is acceptable. A loading dose is not required when switching between formulations. ( 2.2 ) Prophylaxis of invasive Aspergillus and Candida infections Posaconazole Injection: Loading dose : 300 mg posaconazole injection intravenously twice a day on the first day. Maintenance dose : 300 mg posaconazole injection intravenously once a day thereafter. Duration of therapy is based on recovery from neutropenia or immunosuppression. ( 2.2 , 2.3 ) • For pediatric patients, see the Full Prescribing Information for dosing recommendations for posaconazole injection , based on the age and indication associated with the dosage form. ( 1.1 , 1.2 , 2.1 , 2.3 ) 2.1 Important Administration Instructions Posaconazole injection • Administer via a central venous line, including a central venous catheter or peripherally inserted central catheter (PICC), by slow intravenous infusion over approximately 90 minutes [see Dosage and Administration ( 2.4 )] . • If a central venous catheter is not available, posaconazole injection may be administered through a peripheral venous catheter by slow intravenous infusion over 30 minutes only as a single dose in advance of central venous line placement or to bridge the period during which a central venous line is replaced or is in use for other intravenous treatment. • When multiple dosing is required, the infusion should be done via a central venous line. • Do NOT administer posaconazole injection as an intravenous bolus injection 2.2 Dosing Regimen in Adult Patients Table 1: Dosing Regimens in Adult Patients Indication Dose and Frequency Duration of Therapy Treatment of invasive Aspergillosis Posaconazole Injection: Loading dose: 300 mg posaconazole injection intravenously twice a day on the first day. Maintenance dose: 300 mg posaconazole injection intravenously once a day, starting on the second day. Switching between the intravenous and Noxafil® delayed-release tablets is acceptable. A loading dose is not required when switching between formulations. Loading dose: 1 day Maintenance dose: Recommended total duration of therapy is 6 to 12 weeks. Prophylaxis of invasive Aspergillus and Candida infections Posaconazole Injection: Loading dose : 300 mg posaconazole injection intravenously twice a day on the first day. Maintenance dose : 300 mg posaconazole injection intravenously once a day thereafter. Loading dose : 1 day Maintenance dose : Duration of therapy is based on recovery from neutropenia or immunosuppression. 2.3 Dosing Regimen in Pediatric Patients (ages 2 to less than 18 years of age) The recommended dosing regimen of posaconazole injection for pediatric patients 2 to less than 18 years of age is shown in Table 2 [see Clinical Pharmacology (12.3)]. Table 2: Posaconazole Injection Dosing Regimens for Pediatric Patients (ages 2 to less than 18 years of age) Recommended Pediatric Dosage and Formulation Indication Weight/Age Injection Duration of therapy Prophylaxis of invasive Aspergillus and Candida infections Less than or equal to 40 kg (2 to less than 18 years of age) Greater than 40 kg (2 to less than 18 years of age) Loading dose: 6 mg/kg up to a maximum of 300 mg twice daily on the first day Maintenance dose: 6 mg/kg up to a maximum …

Warnings

5 WARNINGS AND PRECAUTIONS • Calcineurin-Inhibitor Toxicity : Posaconazole increases concentrations of cyclosporine or tacrolimus; reduce dose of cyclosporine and tacrolimus and monitor concentrations frequently. ( 5.1 ) • Arrhythmias and QTc Prolongation : Posaconazole has been shown to prolong the QTc interval and cause cases of TdP. Administer with caution to patients with potentially proarrhythmic conditions. Do not administer with drugs known to prolong QTc interval and metabolized through CYP3A4. ( 5.2) • Electrolyte Disturbances : Monitor and correct, especially those involving potassium (K + ), magnesium (Mg ++ ), and calcium (Ca ++ ), before and during posaconazole therapy. ( 5.3 ) • Pseudoaldosteronism : Manifested by the onset or worsening of hypertension, and abnormal laboratory findings. Monitor blood pressure and potassium levels, and manage as necessary. ( 5.4 ) • Hepatic Toxicity : Elevations in liver tests may occur. Discontinuation should be considered in patients who develop abnormal liver tests or monitor liver tests during treatment. ( 5.5 ) • Renal Impairmen t: Posaconazole injection should be avoided in patients with moderate or severe renal impairment (creatinine clearance <50 mL/min), unless an assessment of the benefit/risk to the patient justifies the use of posaconazole injection. ( 5.6 , 8.6 ) • Concomitant Use with Midazolam : Posaconazole can prolong hypnotic/sedative effects. Monitor patients and benzodiazepine receptor antagonists should be available. ( 5.7 , 7.5 ) • Vincristine Toxicity : Concomitant administration of azole antifungals, including posaconazole, with vincristine has been associated with neurotoxicity and other serious adverse reactions; reserve azole antifungals, including posaconazole, for patients receiving a vinca alkaloid, including vincristine, who have no alternative antifungal treatment options. ( 5.8 , 7.10 ) • Venetoclax Toxicity : Concomitant administration of posaconazole with venetoclax may increase venetoclax toxicities, including the risk of tumor lysis syndrome, neutropenia, and serious infections; monitor for toxicity and reduce venetoclax dose. ( 4.6 , 5.11 , 7.16 ) 5.1 Calcineurin-Inhibitor Toxicity Concomitant administration of posaconazole with cyclosporine or tacrolimus increases the whole blood trough concentrations of these calcineurin-inhibitors [ see Drug Interactions ( 7.1 ) and Clinical Pharmacology ( 12.3 ) ]. Nephrotoxicity and leukoencephalopathy (including deaths) have been reported in clinical efficacy studies in patients with elevated cyclosporine or tacrolimus concentrations. Frequent monitoring of tacrolimus or cyclosporine whole blood trough concentrations should be performed during and at discontinuation of posaconazole treatment and the tacrolimus or cyclosporine dose adjusted accordingly. 5.2 Arrhythmias and QT Prolongation Some azoles, including posaconazole, have been associated with prolongation of the QT interval on the electrocardiogram. In addition, cases of torsades de pointes have been reported in patients taking posaconazole. Results from a multiple time-matched ECG analysis in healthy volunteers did not show any increase in the mean of the QTc interval. Multiple, time-matched ECGs collected over a 12-hour period were recorded at baseline and steady-state from 173 healthy male and female volunteers (18-85 years of age) administered Noxafil ® (posaconazole) oral suspension 400 mg twice daily with a high-fat meal. In this pooled analysis, the mean QTc (Fridericia) interval change from baseline was –5 msec following administration of the recommended clinical dose. A decrease in the QTc(F) interval (–3 msec) was also observed in a small number of subjects (n=16) administered placebo. The placebo-adjusted mean maximum QTc(F) interval change from baseline was <0 msec (–8 msec). No healthy subject administered posaconazole had a QTc(F) interval ≥500 msec or an increase ≥60 msec in their QTc(F) interval from baseline. Posaconazole should b…

Contraindications

4 CONTRAINDICATIONS • Known hypersensitivity to posaconazole or other azole antifungal agents. ( 4.1 ) • Coadministration of posaconazole with the following drugs is contraindicated; posaconazole increases concentrations and toxicities of: • Sirolimus ( 4.2 , 5.1 , 7.1 ) • CYP3A4 substrates (pimozide, quinidine): can result in QTc interval prolongation and cases of torsades de pointes (TdP) ( 4.3, 5.2 , 7.2 ) • HMG-CoA Reductase Inhibitors Primarily Metabolized through CYP3A4 ( 4.4, 7.3 ) • Ergot alkaloids ( 4.5 , 7.4 ) • Venetoclax: In patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) at initiation and during the ramp-up phase ( 4.6, 5.11 , 7.16 ) 4.1 Hypersensitivity Posaconazole is contraindicated in persons with known hypersensitivity to posaconazole or other azole antifungal agents. 4.2 Use with Sirolimus Posaconazole is contraindicated with sirolimus. Concomitant administration of posaconazole with sirolimus increases the sirolimus blood concentrations by approximately 9-fold and can result in sirolimus toxicity [ see Drug Interactions ( 7.1 ) and Clinical Pharmacology ( 12.3 ) ]. 4.3 QT Prolongation with Concomitant Use with CYP3A4 Substrates Posaconazole is contraindicated with CYP3A4 substrates that prolong the QT interval. Concomitant administration of posaconazole with the CYP3A4 substrates, pimozide and quinidine may result in increased plasma concentrations of these drugs, leading to QTc prolongation and cases of torsades de pointes [ see Warnings and Precautions (5.2) and Drug Interactions ( 7.2 ) ]. 4.4 HMG-CoA Reductase Inhibitors Primarily Metabolized Through CYP3A4 Coadministration with the HMG-CoA reductase inhibitors that are primarily metabolized through CYP3A4 (e.g., atorvastatin, lovastatin, and simvastatin) is contraindicated since increased plasma concentration of these drugs can lead to rhabdomyolysis [ see Drug Interactions ( 7.3 ) and Clinical Pharmacology ( 12.3 ) ]. 4.5 Use with Ergot Alkaloids Posaconazole may increase the plasma concentrations of ergot alkaloids (ergotamine and dihydroergotamine) which may lead to ergotism [ see Drug Interactions ( 7.4 ) ]. 4.6 Use with Venetoclax Coadministration of posaconazole with venetoclax at initiation and during the ramp-up phase is contraindicated in patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) due to the potential for increased risk of tumor lysis syndrome [ see Warnings and Precautions ( 5.11 ) and Drug Interactions ( 7.16 ) ].

Drug interactions

7 DRUG INTERACTIONS Posaconazole is primarily metabolized via UDP glucuronosyltransferase and is a substrate of p- glycoprotein (P-gp) efflux. Therefore, inhibitors or inducers of these clearance pathways may affect posaconazole plasma concentrations. Coadministration of drugs that can decrease the plasma concentrations of posaconazole should generally be avoided unless the benefit outweighs the risk. If such drugs are necessary, patients should be monitored closely for breakthrough fungal infections. Posaconazole is also a strong inhibitor of CYP3A4. Therefore, plasma concentrations of drugs predominantly metabolized by CYP3A4 may be increased by posaconazole [ see Clinical Pharmacology ( 12.3 ) ]. The following information was derived from data with Noxafil ® (posaconazole) oral suspension or early tablet formulation unless otherwise noted. All drug interactions with Noxafil ® (posaconazole) oral suspension, except for those that affect the absorption of posaconazole (via gastric pH and motility), are considered relevant to posaconazole injection as well. Interaction Drug Interaction Rifabutin, phenytoin, efavirenz Avoid coadministration unless the benefit outweighs the risks ( 7.6 , 7.7, 7.8 ) Other drugs metabolized by CYP3A4 Consider dosage adjustment and monitor for adverse effects and toxicity ( 7.1, 7.10 , 7.11 ) Digoxin Monitor digoxin plasma concentrations ( 7.12 ) Fosamprenavir Monitor for breakthrough fungal infections ( 7.6 ) 7.1 Immunosuppressants Metabolized by CYP3A4 Sirolimus : Concomitant administration of posaconazole with sirolimus increases the sirolimus blood concentrations by approximately 9-fold and can result in sirolimus toxicity. Therefore, posaconazole is contraindicated with sirolimus [ see Contraindications ( 4.2 ) and Clinical Pharmacology (12.3) ]. Tacrolimus : Posaconazole has been shown to significantly increase the C max and AUC of tacrolimus. At initiation of posaconazole treatment, reduce the tacrolimus dose to approximately one-third of the original dose. Frequent monitoring of tacrolimus whole blood trough concentrations should be performed during and at discontinuation of posaconazole treatment and the tacrolimus dose adjusted accordingly [ see Warnings and Precautions ( 5.1 ) and Clinical Pharmacology ( 12.3 ) ]. Cyclosporine : Posaconazole has been shown to increase cyclosporine whole blood concentrations in heart transplant patients upon initiation of posaconazole treatment. It is recommended to reduce cyclosporine dose to approximately three-fourths of the original dose upon initiation of posaconazole treatment. Frequent monitoring of cyclosporine whole blood trough concentrations should be performed during and at discontinuation of posaconazole treatment and the cyclosporine dose adjusted accordingly [ see Warnings and Precautions ( 5.1 ) and Clinical Pharmacology ( 12.3 ) ]. 7.2 CYP3A4 Substrates Concomitant administration of posaconazole with CYP3A4 substrates such as pimozide and quinidine may result in increased plasma concentrations of these drugs, leading to QTc prolongation and cases of torsades de pointes. Therefore, posaconazole is contraindicated with these drugs [ see Contraindications ( 4.3 ) and Warnings and Precautions ( 5.2 ) ]. 7.3 HMG-CoA Reductase Inhibitors (Statins) Primarily Metabolized Through CYP3A4 Concomitant administration of posaconazole with simvastatin increases the simvastatin plasma concentrations by approximately 10-fold. Therefore, posaconazole is contraindicated with HMG-CoA reductase inhibitors primarily metabolized through CYP3A4 [ see Contraindications ( 4.4 ) and Clinical Pharmacology ( 12.3 ) ]. 7.4 Ergot Alkaloids Most of the ergot alkaloids are substrates of CYP3A4. Posaconazole may increase the plasma concentrations of ergot alkaloids (ergotamine and dihydroergotamine) which may lead to ergotism. Therefore, posaconazole is contraindicated with ergot alkaloids [ see Contraindications ( 4.5 ) ]. 7.5 Benzodiazepines Metabolized by CYP3A4 Concom…

Pregnancy

8.1 Pregnancy Risk Summary Based on findings from animal data, posaconazole may cause fetal harm when administered to pregnant women. Available data for use of posaconazole in pregnant women are insufficient to establish a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies, skeletal malformations (cranial malformations and missing ribs) and maternal toxicity (reduced food consumption and reduced body weight gain) were observed when posaconazole was dosed orally to pregnant rats during organogenesis at doses ≥1.4 times the 400 mg twice daily oral suspension regimen based on steady-state plasma concentrations of posaconazole in healthy volunteers. In pregnant rabbits dosed orally during organogenesis, increased resorptions, reduced litter size, and reduced body weight gain of females were seen at doses 5 times the exposure achieved with the 400 mg twice daily oral suspension regimen. Doses of ≥ 3 times the clinical exposure caused an increase in resorptions in these rabbits ( see Data ). Based on animal data, advise pregnant women of the potential risk to a fetus. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. 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 Animal Data Posaconazole resulted in maternal toxicity (reduced food consumption and reduced body weight gain) and skeletal malformations (cranial malformations and missing ribs) when given orally to pregnant rats during organogenesis (Gestational Days 6 through 15) at doses ≥27 mg/kg (≥1.4 times the 400 mg twice daily oral suspension regimen based on steady-state plasma concentrations of drug in healthy volunteers). The no-effect dose for malformations and maternal toxicity in rats was 9 mg/kg, which is 0.7 times the exposure achieved with the 400 mg twice daily oral suspension regimen. No malformations were seen in rabbits dosed during organogenesis (Gestational Days 7 through 19) at doses up to 80 mg/kg (5 times the exposure achieved with the 400 mg twice daily oral suspension regimen). In the rabbit, the no-effect dose was 20 mg/kg, while high doses of 40 mg/kg and 80 mg/kg (3 or 5 times the clinical exposure) caused an increase in resorptions. In rabbits dosed at 80 mg/kg, a reduction in body weight gain of females and a reduction in litter size were seen.

Nursing mothers

8.6 Renal Impairment Posaconazole injection should be avoided in patients with moderate or severe renal impairment (eGFR <50 mL/min), unless an assessment of the benefit/risk to the patient justifies the use of posaconazole injection. In patients with moderate or severe renal impairment (eGFR <50 mL/min), receiving the posaconazole injection, accumulation of the intravenous vehicle, SBECD, is expected to occur. Serum creatinine levels should be closely monitored in these patients, and, if increases occur, consideration should be given to changing to oral posaconazole therapy [ see Dosage and Administration ( 2.9 ) and Warnings and Precautions ( 5.6 ) ].

Adverse events

Most frequently reported events (FDA FAERS). Report frequency does not imply causation.

  • off label use1,593
  • drug ineffective1,457
  • febrile neutropenia1,039
  • product use in unapproved indication977
  • death958
  • drug interaction952
  • pyrexia870
  • neutropenia724
  • pneumonia664
  • thrombocytopenia515
  • diarrhoea507
  • nausea492
  • septic shock450
  • condition aggravated432
  • acute kidney injury419
  • sepsis417

Adverse reactions (label)

6 ADVERSE REACTIONS The following serious and otherwise important adverse reactions are discussed in detail in another section of the labeling: • Hypersensitivity [see Contraindications ( 4.1 )] • Arrhythmias and QT Prolongation [see Warnings and Precautions ( 5.2 )] • Hepatic Toxicity [see Warnings and Precautions ( 5.5 )] • Adult Patients: Common adverse reactions in studies with posaconazole in adults are diarrhea, nausea, fever, vomiting, headache, coughing, and hypokalemia. ( 6.1 ) • Pediatric Patients: Common adverse reactions (incidence >20% receiving 6 mg/kg posaconazole injection) in a study in pediatric patients are pyrexia, febrile neutropenia, vomiting, mucosal inflammation, pruritus, hypertension, hypokalemia, and stomatitis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Glenmark Pharmaceuticals Inc., USA at 1 (888) 721-7115 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Table 16: Posaconazole Pediatric Study: Changes in Liver Tests from CTC Grade 0, 1, or 2 at Baseline to Grade 3 or 4 Number (%) of Patients with Change* Pediatric Study 1 Laboratory Parameter Posaconazole Injection and Noxafil ® PowderMix (posaconazole) for delayed-release oral suspension (6 mg/kg daily) n=49 (%) AST 2/49 (4) ALT 3/49 (6) Bilirubin 0/48 (0) Alkaline Phosphatase 0/48 (0) *Change from Grade 0 to 2 at baseline to Grade 3 or 4 during the study. These data are presented in the form X/Y, where X represents the number of patients who met the criterion as indicated, and Y represents the number of patients who had a baseline observation and at least one post-baseline observation. CTC = Common Toxicity Criteria; AST= Aspartate Aminotransferase; ALT= Alanine Aminotransferase 6.2 Postmarketing Experience The following adverse reaction has been identified during the post-approval use of posaconazole. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency. Endocrine Disorders: Pseudoaldosteronism