Omalizumab
Looking up MedlinePlus…
From MedlinePlus, U.S. National Library of Medicine
Boxed warning
WARNING: ANAPHYLAXIS Anaphylaxis presenting as bronchospasm, hypotension, syncope, urticaria, and/or angioedema of the throat or tongue, has been reported to occur after administration of XOLAIR. Anaphylaxis has occurred as early as after the first dose of XOLAIR, but also has occurred beyond 1 year after beginning regularly administered treatment. Because of the risk of anaphylaxis, initiate XOLAIR therapy in a healthcare setting and closely observe patients for an appropriate period of time after XOLAIR administration. Health care providers administering XOLAIR should be prepared to manage anaphylaxis which can be life-threatening.
Inform patients of the signs and symptoms of anaphylaxis and instruct them to seek immediate medical care should symptoms occur. Selection of patients for self-administration of XOLAIR should be based on criteria to mitigate risk from anaphylaxis [see Dosage and Administration (2.6) , Warnings and Precautions (5.1) and Adverse Reactions (6.1 , 6.2) ] . WARNING: ANAPHYLAXIS See full prescribing information for complete boxed warning. Anaphylaxis, presenting as bronchospasm, hypotension, syncope, urticaria, and/or angioedema of the throat or tongue, has been reported to occur after administration of XOLAIR.
Anaphylaxis has occurred after the first dose of XOLAIR but also has occurred beyond 1 year after beginning treatment. Initiate XOLAIR therapy in a healthcare setting, closely observe patients for an appropriate period of time after XOLAIR administration and be prepared to manage anaphylaxis which can be life-threatening. Inform patients of the signs and symptoms of anaphylaxis and have them seek immediate medical care should symptoms occur. Selection of patients for self-administration of XOLAIR should be based on criteria to mitigate risk from anaphylaxis. ( 2.6 , 5.1 , 6.1 , 6.2 )
Anti-IgE
Dosing in kidney impairment
This label has no separate kidney-impairment dosing section. Check warnings and clinical pharmacology in the full label.
Preparation and administration
Prepare this dose
Your numbers for omalizumab. Take vial strength, diluent, and limits from the label below.
Enter a dose to see draw volume, final concentration, and rates.
Administration Overview Administer XOLAIR by subcutaneous injection. XOLAIR is intended for use under the guidance of a healthcare provider. Initiate therapy in a healthcare setting and once therapy has been safely established, the healthcare provider may determine whether self-administration of XOLAIR prefilled syringe or autoinjector by the patient or caregiver is appropriate, based on careful assessment of risk for anaphylaxis and mitigation strategies.
Selection of Patients for Self-Administration of XOLAIR Prefilled Syringe or Autoinjector Healthcare providers should consider known risk factors for anaphylaxis to XOLAIR [see Warnings and Precautions ] and mitigation strategies when selecting patients for self-administration. Patient-specific factors including the following criteria should be considered: 1a) Asthma, CRSwNP and CSU : Patient should have no prior history of anaphylaxis to XOLAIR or other agents, such as foods, drugs, biologics, etc. 1b) IgE-Mediated Food Allergy : Patient should have no prior history of anaphylaxis to XOLAIR or other agents (except foods), such as drugs, biologics, etc. 2) Patient should receive at least 3 doses of XOLAIR under the guidance of a healthcare provider with no hypersensitivity reactions 3) Patient or caregiver is able to recognize symptoms of anaphylaxis 4) Patient or caregiver is able to treat anaphylaxis appropriately 5) Patient or caregiver is able to perform subcutaneous injections with XOLAIR prefilled syringe or autoinjector with proper technique according to the prescribed dosing regimen and Instructions for Use
Preparation for Use and Injection of XOLAIR Lyophilized Powder XOLAIR lyophilized powder should only be prepared and injected by a healthcare provider. The supplied XOLAIR lyophilized powder must be reconstituted with Sterile Water for Injection (SWFI) USP, using the following instructions: 1) Before reconstitution, determine the number of vials that will need to be reconstituted (each vial delivers 150 mg of XOLAIR in 1.2 mL) (see Table 6 ) . [See table below.] 2) Draw 1.4 mL of SWFI, USP, into a 3 mL syringe equipped with a 1-inch, 18-gauge needle. 3) Place the vial upright on a flat surface and using standard aseptic technique, insert the needle and inject the SWFI, USP, directly onto the product. 4) Keeping the vial upright, gently swirl the upright vial for approximately 1 minute to evenly wet the powder.
Do not shake. 5) Gently swirl the vial for 5 to 10 seconds approximately every 5 minutes in order to dissolve any remaining solids. The lyophilized product takes 15 to 20 minutes to dissolve . If it takes longer than 20 minutes to dissolve completely, gently swirl the vial for 5 to 10 seconds approximately every 5 minutes until there are no visible gel-like particles in the solution.
Do not use if the contents of the vial do not dissolve completely by 40 minutes. 6) After reconstitution, XOLAIR solution is somewhat viscous and will appear clear or slightly opalescent. It is acceptable if there are a few small bubbles or foam around the edge of the vial; there should be no visible gel-like particles in the reconstituted solution.
Do not use if foreign particles are present. 7) Invert the vial for 15 seconds in order to allow the solution to drain toward the stopper. 8) Use the XOLAIR solution within 8 hours following reconstitution when stored in the vial at 2ºC to 8ºC (36ºF to 46ºF), or within 4 hours of reconstitution when stored at room temperature.
Reconstituted XOLAIR vials should be protected from sunlight. 9) Using a new 3 mL syringe equipped with a 1-inch, 18-gauge needle, insert the needle into the inverted vial. Position the needle tip at the very bottom of the solution in the vial stopper when drawing the solution into the syringe. The reconstituted product is somewhat viscous.
Withdraw all of the product from the vial before expelling any air or excess solution from the syringe. Before removing the needle from the vial, pull the plunger all the way back to the end of the syringe barrel in order to remove all of the solution from the inverted vial. 10) Replace the 18-gauge needle with a 25-gauge needle for subcutaneous injection. 11) Expel air, large bubbles, and any excess solution in order to obtain a volume of 1.2 mL corresponding to a dose of 150 mg of XOLAIR.
To obtain a volume of 0.6 mL corresponding to a dose of 75 mg of XOLAIR, expel air, large bubbles and discard 0.6 mL from the syringe. A thin layer of small bubbles may remain at the top of the solution in the syringe. 12) Administer XOLAIR by subcutaneous injection. The injection may take 5-10 seconds to administer because the solution is slightly viscous.
Do not administer more than 150 mg (contents of one vial) per injection site. Divide doses of more than 150 mg between two or more injection sites. Choose a different injection site for each new injection at least 1 inch from the area used for other injections.
| XOLAIR DoseThe 75 mg, 150 mg, 225 mg, 300 mg, and 375 mg XOLAIR doses are approved for use in asthma patients. All doses in the table are approved for use in CRSwNP and IgE-mediated food allergy patients. The 150 mg and 300 mg XOLAIR doses are also approved for use in CSU patients. | 75 mg | 150 mg | 300mg | Total Volume Injected |
|---|---|---|---|---|
| 75 mg | 1 | 0 | 0 | 0.5 mL |
| 150 mg | 0 | 1 | 0 | 1 mL |
| 225 mg | 1 | 1 | 0 | 1.5 mL |
| 300 mg | 0 | 0 | 1 | 2 mL |
| 375 mg | 1 | 0 | 1 | 2.5 mL |
| 450 mg | 0 | 1 | 1 | 3 mL |
| 525 mg | 1 | 1 | 1 | 3.5 mL |
| 600 mg | 0 | 0 | 2 | 4 mL |
| XOLAIR DoseThe 75 mg, 150 mg, 225 mg, 300 mg, and 375 mg XOLAIR doses are approved for use in asthma patients. All doses in the table are approved for use in CRSwNP and IgE-mediated food allergy patients. The 150 mg and 300 mg XOLAIR doses are also approved for use in CSU patients. | Number of Vials | Number of Injections | Total Volume Injected |
|---|---|---|---|
| 75 mg | 1 | 1 | 0.6 mL |
| 150 mg | 1 | 1 | 1.2 mL |
| 225 mg | 2 | 2 | 1.8 mL |
| 300 mg | 2 | 2 | 2.4 mL |
| 375 mg | 3 | 3 | 3.0 mL |
| 450 mg | 3 | 3 | 3.6 mL |
| 525 mg | 4 | 4 | 4.2 mL |
| 600 mg | 4 | 4 | 4.8 mL |
Drug interactions
Check omalizumab against a medication listLabel text (1 paragraph)
No formal drug interaction studies have been performed with XOLAIR. In patients with asthma, CRSwNP, and IgE-mediated food allergy the concomitant use of XOLAIR and allergen immunotherapy has not been evaluated . In patients with CSU, the use of XOLAIR in combination with immunosuppressive therapies has not been studied. No formal drug interaction studies have been performed. ( 7 )
Contraindications
4 CONTRAINDICATIONS XOLAIR is contraindicated in patients with severe hypersensitivity reaction to XOLAIR or any ingredient of XOLAIR [see Warnings and Precautions (5.1) ] . Severe hypersensitivity reaction to XOLAIR or any ingredient of XOLAIR ( 4 , 5.1 )
Safety data
Reported adverse events (FAERS)
Liver injury (LiverTox)
ELikelihood score E: Unlikely cause of clinically apparent liver injury.
Omalizumab is a monoclonal antibody to human immunoglobulin E (IgE), which leads to a decrease in IgE binding to mast cells and basophils and a reduction in allergic symptoms of asthma and seasonal rhinitis. Omalizumab therapy has not been associated with serum enzyme elevations during therapy and has yet to be implicated in cases of clinically apparent drug induced liver injury with jaundice.
ABCDEA: well known cause; E: unlikely cause. [HD]: high doses only.
Pregnancy and lactation
Pregnancy
8.1 Pregnancy Risk Summary A registry study of XOLAIR exposure during pregnancy showed no increase in the rate of major birth defects or miscarriage. There was an increased rate of low birth weight among registry infants compared to infants in the other cohorts, despite average gestational age at birth; however, women taking XOLAIR during pregnancy also had more severe asthma, which makes it difficult to determine whether the low birth weight is due to the drug or the disease severity [see Data ] . There are risks associated with poorly or moderately controlled asthma in pregnancy [see Clinical Considerations ] .
Human IgG antibodies are known to cross the placental barrier; therefore, XOLAIR may be transmitted from the mother to the developing fetus. In animal reproduction studies, no evidence of fetal harm was observed in Cynomolgus monkeys with subcutaneous doses of omalizumab up to approximately 5 times the maximum recommended human dose (MRHD) [see Data ] . The estimated background risk of major birth defects and miscarriage for the indicated population(s) is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.
In the US 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. Clinical Considerations Disease-associated maternal and/or embryo/fetal risk In women with poorly or moderately controlled asthma, evidence demonstrates that there is an increased risk of preeclampsia in the mother and prematurity, low birth weight, and small for gestational age in the neonate. The level of asthma control should be closely monitored in pregnant women and treatment adjusted as necessary to maintain optimal control.
Data Human Data A prospective cohort pregnancy exposure registry study conducted in the US from 2006 to 2018, included 250 pregnant women with asthma treated with XOLAIR. Of these, 246 patients were exposed to XOLAIR in the first trimester of pregnancy, and the median exposure duration was 8.7 months. The registry findings for applicable mother and infant subgroups were compared to age-adjusted frequencies in a disease-matched external cohort of 1,153 pregnant women with asthma (without exposure to XOLAIR) identified from healthcare databases of residents in the Canadian province of Quebec, and referred to as the Quebec External Comparator Cohort ("comparator cohort").
Among applicable registry infants, the prevalence of major congenital anomalies (8.1%) was similar to that for infants in the…
Breastfeeding (LactMed)
Preliminary evidence indicates that the amount of omalizumab in milk is very low. It is also likely to be partially destroyed in the infant's gastrointestinal tract and absorption by the infant is probably minimal. Many infants have been breastfed during maternal omalizumab therapy, with no increase in infectious complications. Omalizumab is considered acceptable to use during breastfeeding.- Waiting for at least 2 weeks postpartum to resume therapy may minimize transfer to the infant.
- Benralizumab
- Mepolizumab
Supply and cost
Drug shortage status
Recalls (last 24 months)
Therapeutic equivalence (Orange Book)
Price ladder
Not the price at the counterThese are not what a patient pays at the pharmacy counter. They are what pharmacies, health plans, and government buyers pay, before manufacturer rebates. A patient's cost depends on their insurance (copay, coinsurance, or deductible) or the pharmacy's cash price.