Firazyr (Icatibant)
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Firazyr (Icatibant)

FIRAZYR
(icatibant)

DRUG DESCRIPTION

FIRAZYR (icatibant) is a synthetic decapeptide with five non-proteinogenic amino acids. The chemical structure of icatibant acetate is presented in Figure 1.

Figure 1 : Chemical Structure

FIRAZYR (icatibant)  Structural Formula Illustration

Chemical name: D-Arginyl-L-arginyl-L-prolyl-L[(4R)-4-hydroxyprolyl]-glycyl-L[3-(2-thienyl)alanyl]-Lseryl-D-(1,2,3,4-tetrahydroisoquinolin-3-ylcarbonyl)-L[(3aS,7aS)-octahydroindol-2-ylcarbonyl]-Larginine, acetate salt

FIRAZYR is provided as a sterile, isotonic, and buffered solution of icatibant acetate in a single-use, prefilled syringe for subcutaneous administration. Each mL of the solution contains 10 mg of icatibant (free base). Each prefilled syringe delivers 3 mL of solution equivalent to a 30 mg icatibant dose. The solution is clear and colorless.

The solution also contains sodium chloride, glacial acetic acid, sodium hydroxide and water for injection with a pH of approximately 5.5. The solution does not contain preservatives.

Pharmacological class: Icatibant is a bradykinin B2 receptor antagonist.

What are the possible side effects of icatibant (Firazyr)?

Get emergency medical help if you have any of these signs of an allergic reaction after using icatibant:

  • chest pain or discomfort, fast or weak heartbeat;
  • flushing (warmth, redness, or tingly feeling);
  • feeling like you might pass out;
  • itching, rash, or hives;
  • runny nose, sneezing, stuffy nose;
  • wheezing, cough, throat irritation, trouble breathing; or
  • swelling of your face, lips, tongue, or throat.

An allergic reaction to icatibant can cause symptoms that are very similar to the signs of hereditary angioedema....

Read All Potential Side Effects and See Pictures of Firazyr »

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

INDICATIONS

FIRAZYR® (icatibant) is indicated for the treatment of acute attacks of hereditary angioedema (HAE) in adults 18 years of age and older.

DOSAGE AND ADMINISTRATION

Recommended Dosing

The recommended dose of FIRAZYR is 30 mg administered by subcutaneous (SC) injection in the abdominal area. Additional doses may be administered at intervals of at least 6 hours if response is inadequate or if symptoms recur. No more than 3 doses may be administered in any 24 hour period.

Administration Instructions

FIRAZYR should be inspected visually for particulate matter and discoloration prior to administration. The drug solution should be clear and colorless. Do not administer if the product contains particulates or is discolored.

Attach the provided 25 gauge needle to the syringe hub and screw on securely. Do not use a different needle. Disinfect the injection site and administer FIRAZYR by subcutaneous injection over at least 30 seconds.

Patients may self-administer FIRAZYR upon recognition of symptoms of an HAE attack after training under the guidance of a healthcare professional [see PATIENT INFORMATION].

HOW SUPPLIED

Dosage Forms And Strengths

FIRAZYR injection is supplied in a prefilled syringe delivering 30 mg icatibant. Each syringe delivers 3 mL solution with a concentration of 10 mg per mL.

FIRAZYR is supplied as a single-use, prefilled syringe for subcutaneous administration. Each syringe delivers 3 mL of a sterile solution of icatibant 30 mg (as icatibant acetate). Each glass syringe has a bromobutyl plunger stopper, which is not made of latex natural rubber.

FIRAZYR is available in cartons containing one single-use, prefilled syringe and one 25 G Luer lock needle. NDC 54092-702-02.

FIRAZYR is also available in a pack containing 3 cartons; each carton contains one single-use, prefilled syringe and one 25 G Luer lock needle. NDC 54092-702-03.

Storage and Handling

Keep out of the reach of children. Store between 2 - 25° C (36 - 77° F). Do not freeze. Store in carton until time of administration.

Manufactured for: Shire Orphan Therapies, Inc. 300 Shire Way Lexington, MA 02421. Revised: August 2011

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

SIDE EFFECTS

Clinical Trials Experience

The safety of icatibant was evaluated in three controlled trials that included 223 patients who received FIRAZYR 30 mg (n=113), placebo (n=75), or comparator (n=38). The mean age at study entry was 38 years (range 18 to 83 years), 64% were female, and 95% were white. The data described below represent adverse reactions observed from the two placebo-controlled trials, consisting of 77 patients who received FIRAZYR at a dose of 30 mg SC, and 75 who received placebo.

The most frequently reported adverse reactions (occurring in greater than 1% of patients and at a higher rate with FIRAZYR versus placebo) are shown in Table 1.

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.

Table 1 : Adverse reactions observed in > 1% of patients with acute attacks of HAE and at a higher rate with FIRAZYR versus placebo in the placebo-controlled trialsa

  FIRAZYR
(N =77)
Placebo
(N = 75)
System Organ Class
Preferred Term
Subjects (%) Subjects (%)
General disorders and administration site conditions
  Injection site reactionb 75 (97) 25 (33)
  Pyrexia 3 (4) 0
Investigations
  Transaminase increased 3 (4) 0
Nervous system disorders
  Dizziness 2 (3) 1 (1)
a Events occurring within 14 days of study drug administration
b Injection site bruising, Injection site hematoma, Injection site burning, Injection site erythema, Injection site hypoesthesia, Injection site irritation, Injection site numbness, Injection site edema, Injection site pain, Injection site pressure sensation, Injection site pruritus, Injection site swelling, Injection site urticaria, and Injection site warmth

The third trial was active-controlled and was comprised of 35 patients who received FIRAZYR 30 mg and 38 patients who received the comparator. Adverse reactions for FIRAZYR were similar in nature and frequency to those reported in Table 1.

In all three controlled trials, patients were eligible for treatment of subsequent attacks in an open-label extension. Patients were treated with FIRAZYR 30 mg and could receive up to 3 doses of FIRAZYR 30 mg administered at least 6 hours apart for each attack. A total of 225 patients were treated with 1,076 doses of 30 mg FIRAZYR for 987 attacks of acute HAE. Adverse reactions similar in nature and frequency were observed to those seen in the controlled phase of the trials. Other adverse reactions reported included rash, nausea, and headache in patients exposed to FIRAZYR.

The safety of self-administration was evaluated in a separate, open-label trial in 56 patients with HAE. In this trial, the safety profile of FIRAZYR in patients who self-administered FIRAZYR was similar in nature and frequency to that of patients whose therapy was administered by healthcare professionals.

Immunogenicity

Across repeated treatment in the controlled trials, 4 patients tested positive for anti-icatibant antibodies. Three of these patients had subsequent tests which were negative. No hypersensitivity or anaphylactic reactions were reported with FIRAZYR. No association between anti-icatibant antibodies and efficacy was observed.

Postmarketing experience

Similar adverse reactions have been observed in postmarketing use as compared to the clinical trials. Because these events are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Read the Firazyr (icatibant) Side Effects Center for a complete guide to possible side effects »

DRUG INTERACTIONS

ACE Inhibitors

FIRAZYR is a bradykinin B2 receptor antagonist and thereby has the potential to have a pharmacodynamic interaction with ACE inhibitors where FIRAZYR may attenuate the antihypertensive effect of ACE inhibitors. Clinical trials to date have excluded subjects taking ACE inhibitors.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

WARNINGS

Included as part of the PRECAUTIONS section.

PRECAUTIONS

Laryngeal Attacks

Given the potential for airway obstruction during acute laryngeal HAE attacks, patients should be advised to seek medical attention in an appropriate healthcare facility immediately in addition to treatment with FIRAZYR.

Patient Counseling Information

Information for Patients

Patients may self-administer FIRAZYR upon recognition of an HAE attack after training under the guidance of a healthcare professional.

Patients with laryngeal symptoms should seek medical attention immediately in an appropriate healthcare facility after administration of FIRAZYR [see WARNINGS AND PRECAUTIONS].

Injection site reactions are reported in most patients after administration of FIRAZYR. Other adverse reactions reported after administration of FIRAZYR include pyrexia, increase in transaminases, dizziness, and rash [see ADVERSE REACTIONS].

Tiredness, drowsiness, and dizziness have been reported following the use of FIRAZYR. Patients should be advised not to drive or use machinery if they feel tired or dizzy.

Nonclinical Toxicology

Carcinogenesis, Mutagenesis, Impairment of Fertility

Long-term studies to determine the carcinogenic potential of icatibant have not been conducted.

Icatibant tested negative for genotoxicity in the in vitro Ames bacterial reverse mutation test, in vitro Chinese hamster bone marrow chromosome aberration assay, and in vivo mouse micronucleus test.

Daily subcutaneous administration of icatibant to rats and dogs caused ovarian, uterine, and testicular atrophy/degeneration and adverse effects on the mammary and prostate glands. In rats, testicular atrophy, reduced prostate gland secretion, decreased testosterone levels and degenenerate corpora lutea occurred at doses greater than or equal to 3 mg/kg (approximately 5-fold greater than the MRHD in males and 2-fold greater than the MRHD in females on an AUC basis) and a decrease in developing ovarian follicles, mammary gland masculinization, and uterine atrophy occurred at doses greater than or equal to 10 mg/kg (approximately 6-fold greater than MRHD in females on an AUC basis). In dogs, reduced sperm counts and uterine atrophy occurred at doses greater than or equal to 1 mg/kg (approximately 2-fold greater than the MRHD on an AUC basis). Atrophy of the testes and prostate with decreased testosterone levels, decreased ovary size and decreased number of developing follicles occurred at a dose of 10 mg/kg (approximately 30-fold greater than the MRHD in males and 15-fold greater than at the MRHD in females on an AUC basis).

In contrast to the effects of daily icatibant administration, toxicity to the ovary, uterus, testis, mammary gland, and prostate did not occur in dogs treated twice a week for 9 months. AUC exposures from a dose of 3 mg/kg in these dogs were 5- and 3-fold the MRHD exposures in men and women, respectively. Sperm counts and testosterone remained unaffected over the course of the study in male dogs dosed twice a week.

Reproduction studies in male mice and rats with daily administration of icatibant found no effects on fertility or reproductive performance with intravenous doses up 81 mg/kg (approximately 5-fold greater than the MRHD on a mg/m² basis) or subcutaneous doses up to 10 mg/kg (approximately 11-fold greater than the MRHD on an AUC basis), respectively.

Use In Specific Populations

Pregnancy

Pregnancy Category C. There are no adequate and well-controlled studies in pregnant women. Icatibant was not teratogenic in rats or rabbits; however, it caused delayed parturition, fetal death, and preimplantation loss in rats and premature birth, abortion, fetal death, and pre-implantation loss in rabbits. FIRAZYR should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Delayed parturition and fetal death in rats occurred at 0.5 and 2-fold, respectively, the maximum recommended human dose (MRHD) (on an AUC basis at maternal doses of 1 and 3 mg/kg, respectively). Increased pre-implantation loss in rats occurred at 7-fold the MRHD (on an AUC basis at a maternal dose of 10 mg/kg). In rabbits, premature birth and abortion rates increased at a dose that was less than 1/40th the MRHD (on a mg/m² basis at a maternal dose of 0.1 mg/kg). Studies in rabbits also indicated that preimplantation loss and increased fetal deaths occurred at 13-fold greater than the MRHD (on an AUC basis at a maternal dose of 10 mg/kg).

Nonteratogenic effects: Impairment of pup air-righting reflex and decreased pup hair growth in rats occurred at 7-fold the MRHD (on an AUC basis at a maternal dose of 10 mg/kg).

Labor and Delivery

There are no human studies that have investigated the effects of FIRAZYR on preterm labor or labor at term; however, animal studies showed that icatibant causes delayed parturition and associated fetal death in rats and premature birth and abortion in rabbits. Delayed parturition occurred in rats at 0.5-fold times the MRHD (on an AUC basis at a maternal dose of 1 mg/kg).

Nursing Mothers

Because many drugs are excreted in human milk, caution should be exercised when FIRAZYR is administered to a nursing woman. Icatibant is excreted into the milk of lactating rats.

Pediatric Use

Safety and effectiveness in pediatric patients below the age of 18 years have not been established.

Geriatric Use

Clinical studies of FIRAZYR did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Elderly patients are likely to have increased systemic exposure to FIRAZYR compared to younger (18-45 years) patients [see CLINICAL PHARMACOLOGY]. Since other reported clinical experience has not identified differences in efficacy and safety between elderly and younger patients, no dose adjustment is recommended.

Hepatic Impairment

FIRAZYR was studied in patients with mild to moderate (Child Pugh scores of 5 to 8) hepatic impairment. No change in systemic exposure is noted in these patient populations. No dose adjustment is required in patients with hepatic impairment [see CLINICAL PHARMACOLOGY].

Renal Impairment

Although a formal renal impairment study has not been conducted, 10 of 37 patients treated with FIRAZYR had hepatorenal syndrome with glomerular filtration rate (GFR) below 60 mL/min. FIRAZYR is cleared non-renally and hence it is not expected to show any change in systemic exposure in patients with impaired renal function. No dose adjustment is required in patients with renal impairment [see CLINICAL PHARMACOLOGY].

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

OVERDOSE

In a clinical study evaluating a 90 mg dose (30 mg in each of 3 subcutaneous sites), the adverse event profile was similar to that seen with 30 mg administered in a single subcutaneous site.

In another clinical study, a dose of 3.2 mg/kg administered intravenously (approximately 8 times the therapeutic dose for HAE) caused erythema, itching and hypotension in healthy subjects. No therapeutic intervention was necessary.

CONTRAINDICATIONS

None.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

CLINICAL PHARMACOLOGY

Mechanism of Action

Icatibant is a competitive antagonist selective for the bradykinin B2 receptor, with an affinity similar to bradykinin. Hereditary angioedema is caused by an absence or dysfunction of C1-esterase-inhibitor, a key regulator of the Factor XII/kallikrein proteolytic cascade that leads to bradykinin production. Bradykinin is a vasodilator which is thought to be responsible for the characteristic HAE symptoms of localized swelling, inflammation, and pain. Icatibant inhibits bradykinin from binding the B2 receptor and thereby treats the clinical symptoms of an acute, episodic attack of HAE.

Pharmacodynamics

Following bradykinin challenge, intravenous administration of FIRAZYR caused dose and time-dependent inhibition of development of bradykinin-induced hypotension, vasodilation, and reflex tachycardia in healthy young subjects. FIRAZYR intravenous doses of 0.4 and 0.8 mg/kg infused over 4 hours inhibited response to bradykinin challenge for 6 to 8 hours following completion of the infusion. Based on exposure-response analysis, a subcutaneous dose of 30 mg FIRAZYR is predicted to be effective against bradykinin challenge for at least 6 hours. The clinical significance of these findings is unknown.

The effect of FIRAZYR 30 and 90 mg following a single subcutaneous injection on QTc interval was evaluated in a randomized, placebo-, and active-controlled (moxifloxacin 400 mg) four-period crossover thorough QT study in 72 healthy subjects. In a study with demonstrated ability to detect small effects, the upper bound of the one-sided 95% confidence interval for the largest placebo adjusted, baseline-corrected QTc based on individual correction method (QTcI) was below 10 ms, the threshold for regulatory concern. The dose of 90 mg is adequate to represent the high exposure clinical scenario.

Pharmacokinetics

The pharmacokinetics of FIRAZYR has been characterized in studies using both intravenous and subcutaneous administration to healthy subjects and patients. The pharmacokinetic profile of FIRAZYR in patients with HAE is similar to that in healthy subjects.

The absolute bioavailability of FIRAZYR following a 30 mg subcutaneous dose is approximately 97%. Following subcutaneous administration of a single 30 mg dose of FIRAZYR to healthy subjects (N=96), a mean (± standard deviation) maximum plasma concentration (Cmax) of 974 ± 280 ng/mL was observed after approximately 0.75 hours. The mean area under the concentration-time curve (AUC0-∞) after a single 30 mg dose was 2165 ± 568 ng·hr/mL, with no evidence of accumulation of icatibant following three 30 mg doses administered 6 hours apart. Following subcutaneous administration, plasma clearance was 245 ± 58 mL/min with a mean elimination half-life of 1.4 ± 0.4 hours and volume of distribution at steady state (Vss) of 29.0 ± 8.7 L.

Icatibant is extensively metabolized by proteolytic enzymes to inactive metabolites that are primarily excreted in the urine, with less than 10% of the dose eliminated as unchanged drug. Icatibant is not degraded by oxidative metabolic pathways, is not an inhibitor of major cytochrome P450 (CYP) isoenzymes (CYP 1A2, 2A6, 2B6, 2C8, 2C9, 2C19, 2D6, 2E1, and 3A4) and is not an inducer of CYP 1A2 and 3A4.

Special populations

Hepatic Impairment

The pharmacokinetic parameters of FIRAZYR were found to be generally comparable between healthy subjects (n=8) and mild to moderate (Child Pugh scores of 5 to 8) hepatic impaired patients (n=8) following a dose of 0.15 mg/kg/day as continuous intravenous infusion over 3 days. In a separate study, FIRAZYR clearance in subjects with a wide range of hepatic impairment (Child-Pugh scores of 7 to 15) was similar to that in healthy subjects. No dose adjustment is necessary for patients with impairment of hepatic function [See Use In Specific Populations].

Renal Impairment

Since renal clearance of icatibant is a minor eliminating pathway, renal impairment is not expected to affect the pharmacokinetics of FIRAZYR and hence a formal renal impairment study was not conducted for FIRAZYR. In 10 patients with hepatorenal syndrome (GFR 30-60 mL/min), clearance of FIRAZYR was not dependent on renal function and therefore, did not show any observable differences in the plasma levels of icatibant or its metabolites compared to subjects with normal renal function. No dose adjustment is necessary for patients with impairment of renal function [See Use In Specific Populations].

Age and Gender

Three 30 mg subcutaneous doses of FIRAZYR administered every 6 hours were studied in young (18 to 45 years of age) and elderly (over 65 years of age) healthy male and female subjects. Following single-dose administration of 30 mg subcutaneous FIRAZYR, elderly males and females showed approximately 2-fold higher AUC compared to young males and females, respectively. However, only minor differences (~12-14%) between Cmax of gender–matched elderly and young subjects were observed. Older subjects tend to exhibit lower clearance compared to younger subjects and therefore higher systemic exposure. Gender effect on FIRAZYR pharmacokinetics was also observed in addition to age effect. Clearance of FIRAZYR is significantly correlated with bodyweight with lower clearance values noted for lower bodyweights. Hence, females with typically lower body weights compared to males exhibit lower clearance values, resulting in approximately 2-fold higher systemic exposure (both AUC and Cmax) compared to males. Differences in efficacy and safety between elderly and younger patients and male and female patients have not been identified. Dose adjustment based on age and gender is not warranted.

Drug Interactions

Formal drug-drug interaction studies were not conducted with FIRAZYR. Icatibant metabolism is not mediated by CYP450 enzymes. In vitro study did not show any significant inhibition and/or induction of drug metabolizing CYP450 enzymes; therefore, metabolic drug interactions between FIRAZYR and CYP450 substrates, inhibitors and inducers are not expected.

Animal Toxicology and/or Pharmacology

The B2 receptor has been implicated in the cardioprotective effects of bradykinin and antagonism of this receptor could potentially have negative cardiovascular effects during reperfusion after acute ischemia. Icatibant decreased coronary blood flow in the isolated guinea pig heart and aggravated the duration of post-ischemic reperfusion arrhythmias in the isolated rat heart. Intracoronary infusion of icatibant in an anesthetized myocardial infarction dog model increased mortality rate 2-fold over saline ischemia. There is limited human experience in acute ischemia. FIRAZYR should be used during acute coronary ischemia, unstable angina pectoris, or in the weeks following a stroke only if the benefit exceeds the theoretical risk to the patient.

Clinical Studies

The efficacy and safety of FIRAZYR for the treatment of acute attacks of HAE in adults were studied in three controlled clinical trials. Among the 223 patients in these studies, the mean age was 38 years, 64% were female, and 95% were white. Approximately 57% of patients reported use of attenuated androgens, antifibrinolytic agents, or C1 inhibitors. Response to therapy was primarily assessed using visual analog scores on a 100 mm scale and patient- and physician-reported symptom scores for abdominal and cutaneous pain and swelling.

Trial 1 was a randomized, placebo-controlled, double-blind, parallel-group study of 98 adult patients with a median age of 36 years. Patients who had developed moderate to severe cutaneous or abdominal or mild to moderate laryngeal attacks of HAE were randomized to receive either FIRAZYR 30 mg or placebo by subcutaneous injection. Patients with severe laryngeal attacks of HAE received open-label FIRAZYR 30 mg. The primary endpoint was assessed using a 3-item composite visual analog score (VAS), comprised of averaged assessments of skin swelling, skin pain, and abdominal pain. Response was defined as at least a 50% reduction from the pretreatment composite 3-itemVAS score (Figure 2). The median time to 50% reduction in symptoms for patients with cutaneous or abdominal attacks treated with FIRAZYR (n=43) compared to placebo (n=45) was 2.0 hours [95% CI 1.5, 3.0] versus 19.8 hours [95% CI 6.1, 26.3], respectively (p < 0.001).

Figure 2 : Time to 50% reduction from baseline in 3-item VAS score.

Time to 50% reduction from baseline in 3-item VAS score - Illustration

Other evaluated endpoints included time to almost complete symptom relief (VAS < 10 mm) and rescue medication use. In Trial 1, the median times to almost complete symptom relief were 8.0 versus 36.0 hours for FIRAZYR and placebo, respectively. In terms of rescue medication use, 3/43 (7%) patients treated with FIRAZYR used additional rescue medication in comparison to 18/45 (40%) patients treated with placebo.

In a second placebo-controlled trial and an active-controlled trial, a total of 26 and 35 patients, respectively, received FIRAZYR 30 mg for the treatment of an acute HAE attack. Across the three trials, FIRAZYR had a median time to 50% reduction from baseline symptoms ranging from 2.0 to 2.3 hours.

Recurrent attacks

In all three controlled trials, patients were eligible for treatment of subsequent attacks in an open-label extension. Patients were treated with FIRAZYR 30 mg and could receive up to 3 doses of FIRAZYR 30 mg administered at least 6 hours apart for each attack. A total of 225 patients were treated with 1,076 doses of 30 mg FIRAZYR for 987 attacks of acute HAE in these trials. In an assessment of the first 5 FIRAZYR-treated attacks (621 doses for 582 attacks), the median times to a 50% reduction from the pretreatment composite 3-itemVAS score were similar across attacks (2.0, 2.0, 2.4, 2.0, 1.5 hours). The majority (93%) of these attacks of HAE were treated with a single dose of FIRAZYR.

Laryngeal attacks

A total of 60 patients with laryngeal attacks were treated with FIRAZYR in the controlled trials. Efficacy results were similar to those observed for non-laryngeal (cutaneous and abdominal) sites of attack.

Self-administration

Self-administration of FIRAZYR by 56 patients was assessed in an open label trial. Patients who administered FIRAZYR during an acute attack of HAE had a median time to 50% reduction from the pretreatment composite 3-itemVAS score of 2.6 hours.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

PATIENT INFORMATION

FIRAZYR®
(FIR-a-zeer)
(icatibant) Injection

Please read this Patient Information before you use FIRAZYR and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or your treatment.

What is FIRAZYR?

FIRAZYR is a medicine used to treat acute attacks of hereditary angioedema (HAE) in adults 18 years and older. It is not known if FIRAZYR is safe or effective for children under 18 years of age.

What should I tell my healthcare provider before taking FIRAZYR?

Before you use FIRAZYR, tell your healthcare provider if you:

  • have any other medical conditions.
  • are breastfeeding or plan to breastfeed. It is not known if FIRAZYR passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby if you use FIRAZYR.
  • are pregnant or plan to become pregnant. It is not known if FIRAZYR will harm your unborn baby. You and your healthcare provider will decide if FIRAZYR is right for you.

Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.

How should I use FIRAZYR?

  • Use FIRAZYR exactly as your healthcare provider tells you to use it.
  • Your healthcare provider will prescribe the right dose of FIRAZYR for you and tell you when to use it.
  • Your healthcare provider will teach you or a caregiver how to give FIRAZYR injections
  • Read the Instructions for Use at the end of the Patient Information for information about the right way to use FIRAZYR.
  • If your symptoms continue or come back, you may repeat your FIRAZYR injection at least six hours apart.
  • Do not use more than 3 doses in 24 hours.
  • If you have a laryngeal attack, inject FIRAZYR and then go to the nearest hospital emergency room right away.

What should I avoid while using FIRAZYR?

Tiredness, drowsiness, and dizziness can occur in people who take FIRAZYR. If this occurs, do not drive a car, use machinery, or do anything that needs you to be alert.

What are the possible side effects of FIRAZYR?

The most common side effects of FIRAZYR include:

Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

These are not all of the possible side effects of FIRAZYR. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store FIRAZYR?

  • Store FIRAZYR between 36°F to 77°F (2°C to 25°C).
  • Do not freeze.
  • Store FIRAZYR in the original carton until you are ready to use it.

Keep FIRAZYR and all medicines out of the reach of children.

General information about the safe and effective use of FIRAZYR

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use FIRAZYR for a condition for which it was not prescribed. Do not give FIRAZYR to other people, even if they have the same symptoms that you have. It may harm them.

This Patient Information leaflet summarizes the most important information about FIRAZYR. If you would like more information, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for information about FIRAZYR that is written for health professionals.

For more information, go to www.FIRAZYR.com or call 1-866-888-0660.

What are the ingredients in FIRAZYR?

Active ingredient: icatibant acetate

Inactive Ingredients: sodium chloride, glacial acetic acid, sodium hydroxide, and water

Step-by-Step Instructions for your FIRAZYR injection

Step 1. Preparing your dose of FIRAZYR

  • Wash your hands with soap and water.
  • You will need the following supplies:
    • Your FIRAZYR carton that includes 1 single-use FIRAZYR prefilled syringe and 1 needle.
    • an alcohol wipe
    • The medicine inside your FIRAZYR prefilled syringe should be clear and colorless. Do not use your FIRAZYR prefilled syringe if the solution contains particles, is cloudy, or an unusual color.

Figure A

Supplies needed for your FIRAZYR injection -  Illustration

Step 2. Remove the prefilled syringe and needle from the carton. See Figure B.

Figure B

Remove the prefilled syringe and needle from the carton - Illustration

Step 3. Remove the seal from the needle cap (the needle should remain inside the protective needle cap until ready to use). See Figure C.

Figure C

Remove the seal from the needle cap - Illustration

Step 4. Hold the syringe firmly. Carefully attach the needle to the prefilled syringe containing the colorless FIRAZYR solution. See Figure D.

Figure D

Carefully attach the needle to the prefilled syringe - Illustration

Step 5. Firmly screw the needle on the prefilled syringe. Be careful not to remove the needle from the needle cap. See Figure E.

Figure E

Firmly screw the needle on the prefilled syringe - Illustration

Figure E Preparing the Injection Site

Step 6. Choose the injection site. The injection site should be a fold of skin on your stomach, about 2 to 4 inches (5 to 10 cm) below your belly button on either side. See Figure F.

The area you choose for injection should be at least 2 inches (5 cm) away from any scars. Do not choose an area that is bruised, swollen, or painful.

Figure F

Choose the injection site - Illustration

Step 7. Clean your FIRAZYR injection site with an alcohol wipe and allow it to dry. See Figure G.

Figure G

Clean your FIRAZYR injection site - Illustration

Injecting your FIRAZYR

Step 8. Remove the needle from the needle cap by holding the needle cap and carefully pulling the syringe. Do not pull up on the plunger. See Figure H.

Figure H

Remove the needle from the needle cap - Illustration

Step 9. Hold the FIRAZYR prefilled syringe in 1 hand, between your fingers and thumb. See Figure I.

Figure I

Hold the FIRAZYR prefilled syringe in 1 hand, between your fingers and thumb - Illustration

Step 10. Use your other hand to gently pinch the fold of skin you cleaned with the alcohol wipe between your thumb and fingers for your injection. See Figure J.

Figure J

Gently pinch a fold of skin - Illustration

Step 11. Hold the syringe between a 45 to 90 degree angle to your skin with the needle facing the fold of skin you are holding. See Figure K.

Figure K

Hold the syringe between a 45 to 90 degree angle to your skin - Illustration

Step 12. Hold the fold of skin. Bring the syringe to the skin and quickly insert the needle into the skin fold. See Figure L.

Figure L

Quickly insert the needle into the skin fold - Illustration

Step 13. Push the plunger, at the top of the syringe, over at least 30 seconds until no FIRAZYR is in the syringe. See Figure M.

Figure M

Push the plunger, at the top of the syringe - Illustration

Step 14. Release the skin fold and gently pull the needle out. See Figure N.

Figure N

Release the skin fold and gently pull the needle out - Illustration

Disposal of your used FIRAZYR prefilled syringe

Step 15. Place the used FIRAZYR syringe with the needle attached, in a sharps container (such as a red biohazard container), a hard plastic container, (such as a detergent bottle), or a metal container (such as an empty coffee can). Seal the container and throw it away the right way. There may be state and local laws about the right way to throw away used syringes and needles. Ask your healthcare provider or pharmacist how to throw away used syringes and needles. See Figure O.

Figure O

Disposal of your used FIRAZYR prefilled syringe - Illustration

This Patient Package Insert and Instructions for Use have been approved by the U.S. Food and Drug Administration.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

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PATIENT INFORMATION

FIRAZYR®
(FIR-a-zeer)
(icatibant) Injection

Please read this Patient Information before you use FIRAZYR and each time you get a refill. There may be new information. This information does not take the place of talking with your healthcare provider about your medical condition or your treatment.

What is FIRAZYR?

FIRAZYR is a medicine used to treat acute attacks of hereditary angioedema (HAE) in adults 18 years and older. It is not known if FIRAZYR is safe or effective for children under 18 years of age.

What should I tell my healthcare provider before taking FIRAZYR?

Before you use FIRAZYR, tell your healthcare provider if you:

  • have any other medical conditions.
  • are breastfeeding or plan to breastfeed. It is not known if FIRAZYR passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby if you use FIRAZYR.
  • are pregnant or plan to become pregnant. It is not known if FIRAZYR will harm your unborn baby. You and your healthcare provider will decide if FIRAZYR is right for you.

Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.

How should I use FIRAZYR?

  • Use FIRAZYR exactly as your healthcare provider tells you to use it.
  • Your healthcare provider will prescribe the right dose of FIRAZYR for you and tell you when to use it.
  • Your healthcare provider will teach you or a caregiver how to give FIRAZYR injections
  • Read the Instructions for Use at the end of the Patient Information for information about the right way to use FIRAZYR.
  • If your symptoms continue or come back, you may repeat your FIRAZYR injection at least six hours apart.
  • Do not use more than 3 doses in 24 hours.
  • If you have a laryngeal attack, inject FIRAZYR and then go to the nearest hospital emergency room right away.

What should I avoid while using FIRAZYR?

Tiredness, drowsiness, and dizziness can occur in people who take FIRAZYR. If this occurs, do not drive a car, use machinery, or do anything that needs you to be alert.

What are the possible side effects of FIRAZYR?

The most common side effects of FIRAZYR include:

Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

These are not all of the possible side effects of FIRAZYR. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store FIRAZYR?

  • Store FIRAZYR between 36°F to 77°F (2°C to 25°C).
  • Do not freeze.
  • Store FIRAZYR in the original carton until you are ready to use it.

Keep FIRAZYR and all medicines out of the reach of children.

General information about the safe and effective use of FIRAZYR

Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use FIRAZYR for a condition for which it was not prescribed. Do not give FIRAZYR to other people, even if they have the same symptoms that you have. It may harm them.

This Patient Information leaflet summarizes the most important information about FIRAZYR. If you would like more information, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for information about FIRAZYR that is written for health professionals.

For more information, go to www.FIRAZYR.com or call 1-866-888-0660.

What are the ingredients in FIRAZYR?

Active ingredient: icatibant acetate

Inactive Ingredients: sodium chloride, glacial acetic acid, sodium hydroxide, and water

Step-by-Step Instructions for your FIRAZYR injection

Step 1. Preparing your dose of FIRAZYR

  • Wash your hands with soap and water.
  • You will need the following supplies:
    • Your FIRAZYR carton that includes 1 single-use FIRAZYR prefilled syringe and 1 needle.
    • an alcohol wipe
    • The medicine inside your FIRAZYR prefilled syringe should be clear and colorless. Do not use your FIRAZYR prefilled syringe if the solution contains particles, is cloudy, or an unusual color.

Figure A

Supplies needed for your FIRAZYR injection -  Illustration

Step 2. Remove the prefilled syringe and needle from the carton. See Figure B.

Figure B

Remove the prefilled syringe and needle from the carton - Illustration

Step 3. Remove the seal from the needle cap (the needle should remain inside the protective needle cap until ready to use). See Figure C.

Figure C

Remove the seal from the needle cap - Illustration

Step 4. Hold the syringe firmly. Carefully attach the needle to the prefilled syringe containing the colorless FIRAZYR solution. See Figure D.

Figure D

Carefully attach the needle to the prefilled syringe - Illustration

Step 5. Firmly screw the needle on the prefilled syringe. Be careful not to remove the needle from the needle cap. See Figure E.

Figure E

Firmly screw the needle on the prefilled syringe - Illustration

Figure E Preparing the Injection Site

Step 6. Choose the injection site. The injection site should be a fold of skin on your stomach, about 2 to 4 inches (5 to 10 cm) below your belly button on either side. See Figure F.

The area you choose for injection should be at least 2 inches (5 cm) away from any scars. Do not choose an area that is bruised, swollen, or painful.

Figure F

Choose the injection site - Illustration

Step 7. Clean your FIRAZYR injection site with an alcohol wipe and allow it to dry. See Figure G.

Figure G

Clean your FIRAZYR injection site - Illustration

Injecting your FIRAZYR

Step 8. Remove the needle from the needle cap by holding the needle cap and carefully pulling the syringe. Do not pull up on the plunger. See Figure H.

Figure H

Remove the needle from the needle cap - Illustration

Step 9. Hold the FIRAZYR prefilled syringe in 1 hand, between your fingers and thumb. See Figure I.

Figure I

Hold the FIRAZYR prefilled syringe in 1 hand, between your fingers and thumb - Illustration

Step 10. Use your other hand to gently pinch the fold of skin you cleaned with the alcohol wipe between your thumb and fingers for your injection. See Figure J.

Figure J

Gently pinch a fold of skin - Illustration

Step 11. Hold the syringe between a 45 to 90 degree angle to your skin with the needle facing the fold of skin you are holding. See Figure K.

Figure K

Hold the syringe between a 45 to 90 degree angle to your skin - Illustration

Step 12. Hold the fold of skin. Bring the syringe to the skin and quickly insert the needle into the skin fold. See Figure L.

Figure L

Quickly insert the needle into the skin fold - Illustration

Step 13. Push the plunger, at the top of the syringe, over at least 30 seconds until no FIRAZYR is in the syringe. See Figure M.

Figure M

Push the plunger, at the top of the syringe - Illustration

Step 14. Release the skin fold and gently pull the needle out. See Figure N.

Figure N

Release the skin fold and gently pull the needle out - Illustration

Disposal of your used FIRAZYR prefilled syringe

Step 15. Place the used FIRAZYR syringe with the needle attached, in a sharps container (such as a red biohazard container), a hard plastic container, (such as a detergent bottle), or a metal container (such as an empty coffee can). Seal the container and throw it away the right way. There may be state and local laws about the right way to throw away used syringes and needles. Ask your healthcare provider or pharmacist how to throw away used syringes and needles. See Figure O.

Figure O

Disposal of your used FIRAZYR prefilled syringe - Illustration

This Patient Package Insert and Instructions for Use have been approved by the U.S. Food and Drug Administration.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

FIRAZYR
(icatibant)

DRUG DESCRIPTION

FIRAZYR (icatibant) is a synthetic decapeptide with five non-proteinogenic amino acids. The chemical structure of icatibant acetate is presented in Figure 1.

Figure 1 : Chemical Structure

FIRAZYR (icatibant)  Structural Formula Illustration

Chemical name: D-Arginyl-L-arginyl-L-prolyl-L[(4R)-4-hydroxyprolyl]-glycyl-L[3-(2-thienyl)alanyl]-Lseryl-D-(1,2,3,4-tetrahydroisoquinolin-3-ylcarbonyl)-L[(3aS,7aS)-octahydroindol-2-ylcarbonyl]-Larginine, acetate salt

FIRAZYR is provided as a sterile, isotonic, and buffered solution of icatibant acetate in a single-use, prefilled syringe for subcutaneous administration. Each mL of the solution contains 10 mg of icatibant (free base). Each prefilled syringe delivers 3 mL of solution equivalent to a 30 mg icatibant dose. The solution is clear and colorless.

The solution also contains sodium chloride, glacial acetic acid, sodium hydroxide and water for injection with a pH of approximately 5.5. The solution does not contain preservatives.

Pharmacological class: Icatibant is a bradykinin B2 receptor antagonist.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

FIRAZYR
(icatibant)

DRUG DESCRIPTION

FIRAZYR (icatibant) is a synthetic decapeptide with five non-proteinogenic amino acids. The chemical structure of icatibant acetate is presented in Figure 1.

Figure 1 : Chemical Structure

FIRAZYR (icatibant)  Structural Formula Illustration

Chemical name: D-Arginyl-L-arginyl-L-prolyl-L[(4R)-4-hydroxyprolyl]-glycyl-L[3-(2-thienyl)alanyl]-Lseryl-D-(1,2,3,4-tetrahydroisoquinolin-3-ylcarbonyl)-L[(3aS,7aS)-octahydroindol-2-ylcarbonyl]-Larginine, acetate salt

FIRAZYR is provided as a sterile, isotonic, and buffered solution of icatibant acetate in a single-use, prefilled syringe for subcutaneous administration. Each mL of the solution contains 10 mg of icatibant (free base). Each prefilled syringe delivers 3 mL of solution equivalent to a 30 mg icatibant dose. The solution is clear and colorless.

The solution also contains sodium chloride, glacial acetic acid, sodium hydroxide and water for injection with a pH of approximately 5.5. The solution does not contain preservatives.

Pharmacological class: Icatibant is a bradykinin B2 receptor antagonist.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

FIRAZYR
(icatibant)

DRUG DESCRIPTION

FIRAZYR (icatibant) is a synthetic decapeptide with five non-proteinogenic amino acids. The chemical structure of icatibant acetate is presented in Figure 1.

Figure 1 : Chemical Structure

FIRAZYR (icatibant)  Structural Formula Illustration

Chemical name: D-Arginyl-L-arginyl-L-prolyl-L[(4R)-4-hydroxyprolyl]-glycyl-L[3-(2-thienyl)alanyl]-Lseryl-D-(1,2,3,4-tetrahydroisoquinolin-3-ylcarbonyl)-L[(3aS,7aS)-octahydroindol-2-ylcarbonyl]-Larginine, acetate salt

FIRAZYR is provided as a sterile, isotonic, and buffered solution of icatibant acetate in a single-use, prefilled syringe for subcutaneous administration. Each mL of the solution contains 10 mg of icatibant (free base). Each prefilled syringe delivers 3 mL of solution equivalent to a 30 mg icatibant dose. The solution is clear and colorless.

The solution also contains sodium chloride, glacial acetic acid, sodium hydroxide and water for injection with a pH of approximately 5.5. The solution does not contain preservatives.

Pharmacological class: Icatibant is a bradykinin B2 receptor antagonist.

Last reviewed on RxList: 9/1/2011
This monograph has been modified to include the generic and brand name in many instances.

Firazyr Patient Information Including Side Effects

Brand Names: Firazyr

Generic Name: icatibant (Pronunciation: eye KAT i bant)

What is icatibant (Firazyr)?

Icatibant is used to treat attacks of hereditary angioedema (an immune system disorder). This medication is used in people who are at least 18 years old.

Icatibant is not a cure for hereditary angioedema.

Icatibant may also be used for purposes not listed in this medication guide.

What are the possible side effects of icatibant (Firazyr)?

Get emergency medical help if you have any of these signs of an allergic reaction after using icatibant:

  • chest pain or discomfort, fast or weak heartbeat;
  • flushing (warmth, redness, or tingly feeling);
  • feeling like you might pass out;
  • itching, rash, or hives;
  • runny nose, sneezing, stuffy nose;
  • wheezing, cough, throat irritation, trouble breathing; or
  • swelling of your face, lips, tongue, or throat.

An allergic reaction to icatibant can cause symptoms that are very similar to the signs of hereditary angioedema.

Less serious side effects may include:

  • dizziness, drowsiness, tired feeling;
  • nausea, vomiting, diarrhea;
  • fever;
  • headache;
  • mild skin rash; or
  • pain, pressure, swelling, bruising, burning, warmth, redness, numbness, tenderness, itching, rash, or other irritation where the injection was given.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the Firazyr (icatibant) Side Effects Center for a complete guide to possible side effects »

What is the most important information I should know about icatibant (Firazyr)?

You should not use icatibant if you are allergic to it.

To make sure you can safely use icatibant, tell your doctor about all of your medical conditions, if you use heart or blood pressure medications, and if you are pregnant or breast-feeding.

Get emergency medical help if you have any swelling of your tongue or throat during an angioedema attack.

An allergic reaction to icatibant can cause symptoms that are very similar to the signs of hereditary angioedema, including: hives, trouble breathing, or swelling of your face, lips, tongue, or throat.

Side Effects Centers

Firazyr Patient Information including How Should I Take

What should I discuss with my healthcare provider before receiving icatibant (Firazyr)?

You should not use icatibant if you are allergic to it.

To make sure you can safely use icatibant, tell your doctor about all of your medical conditions.

FDA pregnancy category C. It is not known whether icatibant will harm an unborn baby. Tell your doctor if you are pregnant before using this medication.

It is not known whether icatibant passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How is icatibant given (Firazyr)?

Icatibant is injected under the skin. You will be shown how to use injections at home. Do not self inject this medicine if you do not fully understand how to give the injection and properly dispose of used needles and syringes.

Get emergency medical help if you have any swelling of your tongue or throat during an angioedema attack.

This medication comes with patient instructions for safe and effective use. Follow these directions carefully. Ask your doctor or pharmacist if you have any questions.

Prepare your dose in a syringe only when you are ready to give yourself an injection. Do not use the medication if it looks cloudy or has particles in it. Call your doctor for a new prescription.

Wash your hands with soap and water before preparing your injection.

Do not give an injection into an area that is painful, swollen, or bruised.

If you still have symptoms of angioedema after the first injection, you may use another injection after at least 6 hours have passed.

Call your doctor if your symptoms do not improve, or if they get worse after using this medication.

Each prefilled syringe of this medicine is for one use only. Throw away after one use, even if there is still some medicine left in it after injecting your dose.

Use a syringe and needle only once. Throw away used needles in a puncture-proof container (ask your pharmacist where you can get one and how to dispose of it). Keep this container out of the reach of children and pets.

Store icatibant in the original container at room temperature, away from moisture and heat.

You may also store this medicine in the refrigerator. Do not freeze.

Side Effects Centers

Firazyr Patient Information including If I Miss a Dose

What happens if I miss a dose (Firazyr)?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose (Firazyr)?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include redness, itching, or feeling like you might pass out.

What should I avoid after receiving icatibant (Firazyr)?

This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

What other drugs will affect icatibant (Firazyr)?

Tell your doctor about all other medicines you use, especially a heart or blood pressure medication such as:

  • benazepril (Lotensin, Lotrel);
  • captopril (Capoten, Capozide);
  • enalapril (Vasotec, Vaseretic);
  • fosinopril (Monopril);
  • lisinopril (Prinivil, Prinzide, Zestril, Zestoretic)
  • moexipril (Univasc, Uniretic);
  • perindopril (Aceon);
  • quinapril (Accupril, Accuretic);
  • ramipril (Altace); or
  • trandolapril (Mavik, Tarka).

This list is not complete and other drugs may interact with icatibant. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about icatibant.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

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