HAEGARDA by is a Other medication manufactured, distributed, or labeled by CSL Behring GmbH. Drug facts, warnings, and ingredients follow.
HAEGARDA is a plasma-derived concentrate of C1 Esterase Inhibitor (Human) (C1-INH) indicated for routine prophylaxis to prevent Hereditary Angioedema (HAE) attacks in adolescent and adult patients. (1)
For subcutaneous use after reconstitution only.
HAEGARDA is available as a white lyophilized powder supplied in single-use vials containing 2000 or 3000 International Units (IU) of C1-INH. (3)
Do not use in patients with a history of life-threatening immediate hypersensitivity reactions, including anaphylaxis to C1-INH preparations or its excipients. (4)
To report SUSPECTED ADVERSE REACTIONS, contact the CSL Behring Pharmacovigilance Department at 1-866-915-6958 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
See 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.
Revised: 9/2019
After reconstitution, for subcutaneous use only.
HAEGARDA is intended for self-administration after reconstitution at a dose of 60 International Units (IU) per kg body weight by subcutaneous (S.C.) injection twice weekly (every 3 or 4 days). The patient or caregiver should be trained on how to administer HAEGARDA.
HAEGARDA is provided as a freeze-dried powder for reconstitution with Sterile Water for Injection, USP.
Use either the Mix2Vial® transfer set provided with HAEGARDA or a commercially available double-ended needle and vented filter spike [see How Supplied/Storage and Handling (16)].
Reconstitution
The procedures below are provided as general guidelines for the reconstitution and administration of HAEGARDA.
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Administration
For subcutaneous injection only.
HAEGARDA is contraindicated in individuals who have experienced life-threatening hypersensitivity reactions, including anaphylaxis, to C1-INH preparations or its excipients [see Description (11)].
The physician should discuss the risks and benefits of this product with the patient before prescribing or administering it to the patient [see Patient Counseling Information (17)].
Initiate individualized treatment in case of an acute HAE attack.
Severe hypersensitivity reactions may occur. The signs and symptoms of hypersensitivity reactions may include hives (local and generalized), tightness of the chest, difficulty breathing, wheezing, hypotension, and/or anaphylaxis during or after injection of HAEGARDA. In case of severe hypersensitivity, discontinue HAEGARDA administration and institute appropriate treatment. Epinephrine should be immediately available for treatment of severe hypersensitivity reaction [see Patient Counseling Information (17)].
At the recommended subcutaneous dose, a causal relationship between thromboembolic events (TEEs) and the use of HAEGARDA has not been established [see Patient Counseling Information (17)]. Thrombosis has occurred in treatment attempts with high doses of C1-INH intravenous (I.V.) for prevention or therapy of capillary leak syndrome before, during or after cardiac surgery (unapproved indication and dose).
Because HAEGARDA is made from human blood, it may carry a risk of transmitting infectious agents, e.g., viruses, the variant Creutzfeldt-Jakob disease (vCJD) agent and, theoretically, the Creutzfeldt-Jakob disease (CJD) agent. The risk that such products will transmit an infectious agent has been reduced by screening plasma donors for prior exposure to certain viruses, by testing for the presence of certain current virus infections, and by processes demonstrated to inactivate and/or remove certain viruses during manufacturing [see Description (11) and Patient Counseling Information (17)]. Despite these measures, such products may still contain human pathogenic agents, including those not yet known or identified. Thus, the risk of transmission of infectious agents cannot be totally eliminated.
All infections thought by a physician possibly to have been transmitted by HAEGARDA should be reported by lot number, by the physician or other healthcare provider, to the CSL Behring Pharmacovigilance Department at 1-866-915-6958.
Adverse reactions occurring in more than 4% of subjects treated with HAEGARDA were injection site reaction, hypersensitivity, nasopharyngitis and dizziness.
Because clinical studies 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.
Of the 90 subjects randomized in the double-blind, placebo-controlled, cross-over study [see Clinical Studies (14)], 86 subjects received at least one dose of HAEGARDA and 86 subjects received at least one dose of placebo (Table 2). A total of 5081 injections of HAEGARDA and placebo were administered over a range of 3 to 19 weeks (median of 16.6 weeks for HAEGARDA; median of 16.3 weeks for placebo).
MedDRA System Organ Class | Adverse Reaction | HAEGARDA | Placebo (N=86) |
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60 IU/kg (N=43) | 40 IU/kg (N=43) |
Overall* (N=86) |
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n (%) | n (%) | n (%) | n (%) | ||
N = number of subjects receiving the treatment; n = number of subjects experiencing ≥1 event. | |||||
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General Disorders and Administration Site Conditions | Injection Site Reaction† | 15 (35) | 12 (28) | 27 (31) | 21 (24) |
Immune System Disorders | Hypersensitivity‡ | 3 (7) | 2 (5) | 5 (6) | 1 (1) |
Infections and Infestations | Nasopharyngitis | 8 (19) | 1 (2) | 9 (11) | 6 (7) |
Nervous System Disorders | Dizziness | 0 (0) | 4 (9) | 4 (5) | 1 (1) |
Of the injection site reactions occurring after treatment with HAEGARDA, 95% were of mild intensity and 83% resolved within 1 day after onset.
Risk Summary
There are no prospective clinical data from HAEGARDA use in pregnant women. C1-INH is a normal component of human plasma. Animal developmental or reproduction toxicity studies have not been conducted with HAEGARDA. In the U.S. general population, the estimated background risk of major birth defects occurs in 2-4% of the general population and miscarriage occurs in 15-20% of clinically recognized pregnancies.
Data
In a retrospective case collection study, 22 pregnant women with type I HAE and ranging in age from 20 to 38 years received C1-INH doses of 500 or 1000 IU per I.V. administration for the treatment of acute attacks before, during, and/or after pregnancy (total of 35 pregnancies). No adverse events were associated with C1-INH treatment before, during, or after pregnancy.1
In an observational registry (overall 318 subjects) data were collected on 11 pregnancies in 10 subjects (16 to 40 years old) receiving up to 3000 IU C1-INH (I.V. administration) to treat or prevent HAE attacks. No adverse events were associated with C1-INH treatment.2
Risk Summary
There is no information regarding the excretion of HAEGARDA in human milk, the effect on the breastfed infant, or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for HAEGARDA and any potential adverse effects on the breastfed infant from HAEGARDA or from the underlying maternal condition.
Data
In a retrospective case collection study, breastfeeding was documented for neonates from 21 of 35 births with a median duration of 4.8 months (ranging from 1 to 34 months). Mothers were treated postpartum with C1-INH doses up to 1000 IU per I.V. administration for the treatment of acute HAE attacks. No adverse events to the mothers were associated with C1-INH treatment after pregnancy. No information regarding the effect on the breastfed infant was reported.1
HAEGARDA is a human plasma-derived, purified, pasteurized, lyophilized concentrate of C1-INH to be reconstituted for S.C. administration. HAEGARDA is prepared from large pools of human plasma from U.S. donors. The potency of C1-INH is expressed in International Units (IU), which is related to the current WHO Standard for C1-INH products.
Reconstituted HAEGARDA has a concentration of 500 IU/mL C1-INH, 65 mg/mL total protein, 10 mg/mL glycine, 8.5 mg/mL sodium chloride and 2.7 mg/mL sodium citrate.
C1 Esterase Inhibitor
C1-INH is a soluble, single-chain highly glycosylated protein containing 478 amino acid residues which belongs to the serine protease inhibitor (serpin) family.
All plasma used in the manufacturing of C1-INH is obtained from U.S. donors and is tested using serological assays for hepatitis B surface antigen and antibodies to HIV-1/2 and HCV. Additionally, the plasma is tested with Nucleic Acid Testing (NAT) for HBV, HCV, HIV-1 and HAV and found to be non-reactive (negative). The plasma is also tested by NAT for Human Parvovirus B19. Only plasma that has passed virus screening is used for production, and the limit for Parvovirus B19 in the fractionation pool is set not to exceed 104 IU of Parvovirus B19 DNA per mL.
The manufacturing process for HAEGARDA includes multiple steps that reduce the risk of virus transmission. The virus inactivation/reduction capacity consists of three steps:
Viral inactivation and reduction were evaluated in a series of in vitro spiking experiments. The total mean cumulative virus inactivation/reduction is shown in Table 3.
Virus Studied | Pasteurization [log10] | Hydrophobic Interaction Chromatography [log10] | Virus Filtration [log10] | Total Cumulative [log10] |
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HIV-1, Human immunodeficiency virus type 1, a model for HIV-1 and HIV-2 | ||||
BVDV, Bovine viral diarrhea virus, a model for HCV | ||||
PRV, Pseudorabies virus, a model for large enveloped DNA viruses | ||||
WNV, West Nile virus | ||||
HAV, Hepatitis A virus | ||||
CPV, Canine parvovirus | ||||
B19V, Human Parvovirus | ||||
B19ND, Not determined | ||||
NA, Not applicable | ||||
Enveloped Viruses | ||||
HIV-1 | ≥6.6 | ≥4.5 | ≥5.1 | ≥16.2 |
BVDV | ≥9.2 | ≥4.7 | ≥5.3 | ≥19.2 |
PRV | 6.3 | ≥6.5 | ≥7.1 | ≥19.9 |
WNV | ≥7.0 | ND | ≥8.0 | ≥15.0 |
Non-Enveloped Viruses | ||||
HAV | ≥6.4 | 2.8 | ≥5.3 | ≥14.5 |
CPV | 1.4 | 3.9 | 7.1 | 12.4 |
B19V | 3.9 | ND | ND | NA |
C1-INH is a normal constituent of human plasma and belongs to the group of serine protease inhibitors (serpins) that includes antithrombin III, alpha1-protease inhibitor, alpha2-antiplasmin, and heparin cofactor II. As with the other inhibitors in this group, C1-INH has an important inhibiting potential on several of the major human cascade systems, including the complement, fibrinolytic and coagulation systems. Regulation of these systems is performed through the formation of complexes between the protease and the inhibitor, resulting in inactivation of both and consumption of the C1-INH.
C1-INH, which is usually activated during the inflammatory process, inactivates its substrate by covalently binding to the reactive site. C1-INH is the only known inhibitor for the C1r and C1s subcomponents of complement component 1 (C1), coagulation factor XIIa, and plasma kallikrein. Additionally, C1-INH is the main inhibitor for coagulation factor XIa of the intrinsic coagulation cascade.
HAE patients have absence or low levels of endogenous or functional C1-INH. Although the events that cause attacks of angioedema in HAE patients are not well defined, it has been postulated that increased vascular permeability and the clinical manifestation of HAE attacks may be primarily mediated through contact system activation. Suppression of contact system activation by C1-INH through the inactivation of plasma kallikrein and factor XIIa is thought to modulate this vascular permeability by preventing the generation of bradykinin. Administration of HAEGARDA replaces the missing or malfunctioning C1-INH protein in patients with HAE.
In untreated patients, insufficient levels of functional C1-INH lead to increased activation of C1, which results in decreased levels of complement component 4 (C4). The administration of HAEGARDA increases plasma levels of C1-INH in a dose-dependent manner and subsequently increases plasma concentrations of C4. The C4 plasma concentrations after S.C. administration of 60 IU/kg HAEGARDA were in the normal range (16 to 38 mg/dL).
The pharmacokinetics (PK) of C1-INH were described using population PK analysis.
The PK parameters of C1-INH following twice weekly subcutaneous 60 IU/kg dosing are shown in Table 4.
Parameter | Mean | 95% CI |
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CL (mL/hr/kg)* | 1.03 | 0.90-1.17 |
Vd (L/kg)* | 0.05 | 0.04-0.06 |
Bioavailability % | 42.7 | 35.2-50.2 |
Cmax % | 60.7† | 31.8-128‡ |
Ctrough % | 48.0† | 25.1-102‡ |
Tmax (hr) | 59§ | 23-134‡ |
Half-life (hr)¶ | 69§ | 24-251‡ |
The steady state PK of S.C. C1-INH is independent of dose between 20-80 IU/kg in HAE subjects.
Studies have not been conducted to evaluate the PK of C1-INH in specific patient populations stratified by gender, race, age, or the presence of renal or hepatic impairment. The PK of C1-INH was not influenced at the age range of 12-72 years.
The efficacy and safety of HAEGARDA for routine prophylaxis to prevent HAE attacks were demonstrated in a multicenter, randomized, double-blind, placebo-controlled, crossover study. The study assessed 90 adult and adolescent subjects with symptomatic HAE type I or II. The median (range) age of subjects was 40 (12 to 72) years; 60 subjects were female and 30 subjects were male. Subjects were randomized to receive either 60 IU/kg or 40 IU/kg HAEGARDA in one 16-week treatment period and placebo in the other 16-week treatment period. Patients self-administered HAEGARDA or placebo subcutaneously 2 times per week. Efficacy was evaluated for the last 14 weeks of each treatment period.
Twice per week S.C. doses of 60 IU/kg or 40 IU/kg HAEGARDA resulted in a significant difference in the time-normalized number of HAE attacks (the rate of attacks) relative to placebo (Table 5). The time normalized number of HAE attacks in subjects dosed with 60 IU/kg was 0.52 attacks per month compared to 4.03 attacks per month while receiving placebo (p <0.001). The time normalized number of HAE attacks in subjects dosed with 40 IU/kg was 1.19 attacks per month compared to 3.61 attacks per month while receiving placebo (p <0.001).
60 IU/kg HAEGARDA Treatment Sequences (N = 45) | 40 IU/kg HAEGARDA Treatment Sequences (N = 45) |
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HAEGARDA | Placebo | HAEGARDA | Placebo | |
CI = confidence interval; HAE = hereditary angioedema; N = number of randomized subjects; n = number of subjects with data; LS = Least squares. |
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n | 43 | 42 | 43 | 44 |
Mean (SD) | 0.5 (0.8) | 4.0 (2.3) | 1.2 (2.3) | 3.6 (2.1) |
Min, Max | 0.0, 3.1 | 0.6, 11.3 | 0.0, 12.5 | 0.0, 8.9 |
Median | 0.3 | 3.8 | 0.3 | 3.8 |
LS Mean (SE)* | 0.5 (0.3) | 4.0 (0.3) | 1.2 (0.3) | 3.6 (0.3) |
95% CI for LS Mean* | (0.0, 1.0) | (3.5, 4.6) | (0.5, 1.9) | (3, 4.3) |
Treatment difference (within-subjects) | 60 IU/kg HAEGARDA – Placebo | 40 IU/kg HAEGARDA – Placebo | ||
LS Mean* (95% CI) | -3.5 (-4.2, -2.8) | -2.4 (-3.4, -1.5) | ||
p-value* | < 0.001 | < 0.001 |
The median (25th, 75th percentile) percentage reduction in the time-normalized number of HAE attacks relative to placebo was 95% (79, 100) on 60 IU/kg HAEGARDA and 89% (70, 100) on 40 IU/kg HAEGARDA among subjects with evaluable data in both treatment periods.
The percentage of responders (95% CI) with a ≥50% reduction in the time-normalized number of HAE attacks on HAEGARDA relative to placebo was 83% (73%, 90%). Ninety percent (90%) of subjects on 60 IU/kg responded to treatment and 76% of subjects on 40 IU/kg responded to treatment.
The percentages of subjects (95% CI) with ≥70% and ≥90% reductions in the time-normalized number of HAE attacks on HAEGARDA relative to placebo were 74% (64%, 83%) and 50% (39%, 61%), respectively. The percentages of subjects with ≥70% and ≥90% reductions in comparison to placebo in the time-normalized number of HAE attacks were 83% and 58% on 60 IU/kg and 67% and 43% on 40 IU/kg. Seventy-one percent (71%) of subjects on 60 IU/kg and 53% of subjects on 40 IU/kg had ≥1 HAE attack per 4 week period on placebo and <1 HAE attack per 4 week period on HAEGARDA.
A total of 40% of subjects on 60 IU/kg and 38% of subjects on 40 IU/kg were attack-free, and the median rate of HAE attacks per month was 0.3 on both doses.
HAEGARDA resulted in a significant difference in the time-normalized number of uses of rescue medication (the rate of rescue medication use) relative to placebo. A dose of 60 IU/kg resulted in a mean rate of rescue medication of 0.3 uses per month, compared to 3.9 uses per month with placebo. A dose of 40 IU/kg resulted in a mean rate of rescue medication use of 1.1 uses per month, compared to 5.6 uses per month with placebo.
How Supplied
HAEGARDA is supplied in a kit containing a lyophilized powder in a single-use vial.
HAEGARDA is packaged with Sterile Water for Injection, USP (4 mL for reconstitution of 2000 IU or 6 mL for reconstitution of 3000 IU) and one Mix2Vial filter transfer set. Not made with natural rubber latex.
Nominal Strength | Fill Size Color Indicator | Kit NDC |
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2000 IU | Fuschia | 63833-828-02 |
3000 IU | Yellow | 63833-829-02 |
See FDA-approved patient labeling (Patient Product Information).
All risks and benefits of HAEGARDA should be discussed with the patient/caregiver before prescribing or administering it to the patient.
Inform patients/caregivers to immediately report the following to their physician:
Inform all patients/caregivers:
Advise female patients:
Self-administration - Ensure that the patient/caregiver receives clear instructions and training on S.C. administration in the home or other appropriate setting and has demonstrated the ability to perform S.C. injection.
The attached HAEGARDA "Patient Product Information (PPI)" contains more detailed instructions for patients/caregivers who will be self-administering HAEGARDA.
HAEGARDA (hay-GAR-duh)
C1 Esterase Inhibitor Subcutaneous (Human)
Freeze-Dried Powder for Reconstitution
This leaflet summarizes important information about HAEGARDA. Please read it carefully before using HAEGARDA and each time you get a refill. There may be new information provided. This information does not take the place of talking with your healthcare provider, and it does not include all of the important information about HAEGARDA. If you have any questions after reading this, ask your healthcare provider.
Do not attempt to self-administer unless you have been taught how by your healthcare provider.
What is HAEGARDA?
HAEGARDA is an injectable medicine used to prevent swelling and/or painful attacks in adults and adolescents with Hereditary Angioedema (HAE). HAE is caused by the poor functioning or lack of a protein called C1 that is present in your blood and helps control inflammation (swelling) and parts of the immune system. HAEGARDA contains C1 esterase inhibitor (C1-INH), a protein that helps control C1.
HAEGARDA should not be used to treat an acute HAE attack. In case of an acute HAE attack, initiate individualized treatment as discussed with your prescribing health care professional.
Who should not use HAEGARDA?
You should not use HAEGARDA if you have experienced life-threatening immediate hypersensitivity reactions, including anaphylaxis, to the product.
What should I tell my healthcare provider before using HAEGARDA?
Tell your healthcare provider about all of your medical conditions, including if you:
Tell your healthcare provider and pharmacist about all of the medicines you take, including all prescription and non-prescription medicines such as over-the-counter medicines, supplements, or herbal remedies.
What are the possible side effects of HAEGARDA?
Allergic reactions may occur with HAEGARDA. Call your healthcare provider or seek emergency support services right away if you have any of the following symptoms after using HAEGARDA:
Signs of a blood clot include:
Because HAEGARDA is made from human blood, it may carry a risk of transmitting infectious agents, e.g., viruses, the variant Creutzfeldt-Jakob disease (vCJD) agent and, theoretically, the Creutzfeldt-Jakob disease (CJD) agent.
The most common side effects with HAEGARDA are injection site reactions (pain, redness, swelling), hypersensitivity (itching and rash), nasopharyngitis (runny or stuffy nose, sneezing, watery eyes) and dizziness.
These are not all the possible side effects of HAEGARDA.
Tell your healthcare provider about any side effect that bothers you or that does not go away. You can also report side effects to the FDA at 1-800-FDA-1088.
How should I store HAEGARDA?
What else should I know about HAEGARDA?
Medicines are sometimes prescribed for purposes other than those listed here. Do not use HAEGARDA for a condition for which it is not prescribed. Do not share HAEGARDA with other people, even if they have the same symptoms that you have.
This leaflet summarizes the most important information about HAEGARDA. If you would like more information, talk to your healthcare provider. You can ask your healthcare provider or pharmacist for information about HAEGARDA that was written for healthcare professionals. For more information, go to www.HAEGARDA.com or call 1-877-236-4423.
What should I know about self-administration?
Reconstitution and Administration
Reconstitution
The procedures below are provided as general guidelines for the reconstitution of HAEGARDA.
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Self-Administration (subcutaneous administration)
Your healthcare provider will teach you how to safely administer HAEGARDA. Once you learn how to self-administer, follow the instructions provided below.
Step 1: Assemble supplies
Gather the HAEGARDA syringe, the following disposable supplies (not provided with HAEGARDA), and other items (sharps or other container, treatment diary or log book):
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Step 2: Clean surface
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Step 3: Wash hands
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Step 4: Prepare injection site
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Step 5: Injection in the abdominal area
As instructed by your healthcare provider:
Injection with Hypodermic Needle:
Injection by S.C Infusion Set:
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Step 6: Clean up
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Step 7: Record treatment
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Resources at CSL Behring available to the patient:
For Adverse Reaction Reporting contact:
CSL Behring Pharmacovigilance Department at 1-866-915-6958
Contact CSL Behring to receive more product information:
Customer Support 1-800-683-1288
For more information, visit www.HAEGARDA.com.
NDC: 63833-828-02
One vial and Sterile Water for Injection, USP
2000 IU
C1 Esterase Inhibitor
Subcutaneous (Human)
HAEGARDA®
For Subcutaneous Administration Only
Rx only
CSL Behring
NDC: 63833-829-02
One vial and Sterile Water for Injection, USP
3000 IU
C1 Esterase Inhibitor
Subcutaneous (Human)
HAEGARDA®
For Subcutaneous Administration Only
Rx only
CSL Behring
HAEGARDA
C1 ESTERASE INHIBITOR SUBCUTANEOUS (HUMAN)
human c1-esterase inhibitor kit |
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HAEGARDA
C1 ESTERASE INHIBITOR SUBCUTANEOUS (HUMAN)
human c1-esterase inhibitor kit |
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Labeler - CSL Behring GmbH (326530474) |
Establishment | |||
Name | Address | ID/FEI | Business Operations |
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CSL Behring GmbH | 326530474 | MANUFACTURE |
Mark Image Registration | Serial | Company Trademark Application Date |
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HAEGARDA 86867299 5158875 Live/Registered |
CSL Behring GmbH 2016-01-06 |