Berinert by is a Other medication manufactured, distributed, or labeled by CSL Behring GmbH. Drug facts, warnings, and ingredients follow.
Warnings and Precautions (5.3) | 04/2019 |
For intravenous use only.
500 International Units lyophilized concentrate in a single-use vial for reconstitution with 10 mL of Sterile Water for Injection, USP. (3)
Do not use in patients with a history of life-threatening immediate hypersensitivity reactions, including anaphylaxis, to C1 esterase inhibitor preparations. (4)
To report SUSPECTED ADVERSE REACTIONS, contact the CSL Behring Pharmacovigilance Department at 1-866-915-6958 or to the 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
For Intravenous Use Only.
Administer BERINERT at a dose of 20 International Units (IU) per kg body weight by intravenous injection. Doses lower than 20 IU/kg body weight should not be administered.
BERINERT is provided as a freeze-dried powder for reconstitution with the Sterile Water for Injection, USP provided. Store the vial in the original carton in order to protect from light. Do not freeze.
Each BERINERT vial containing 500 IU of C1 esterase inhibitor as a lyophilized concentrate for reconstitution with 10 mL of Sterile Water for Injection, USP provided.
Use either the Mix2Vial® transfer set provided with BERINERT [see How Supplied/Storage and Handling (16.1)] or a commercially available double-ended needle and vented filter spike.
Reconstitution
The procedures below are provided as general guidelines for the reconstitution and administration of BERINERT.
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Administration
Severe hypersensitivity reactions may occur. Epinephrine should be immediately available for treatment of acute severe hypersensitivity reaction [see Patient Counseling Information (17)]. The signs and symptoms of hypersensitivity reactions may include hives, generalized urticaria, tightness of the chest, wheezing, hypotension, and/or anaphylaxis during or after injection of BERINERT.
Because hypersensitivity reactions may have symptoms similar to HAE attacks, treatment methods should be carefully considered. In case of suspected hypersensitivity, immediately discontinue administration of BERINERT and institute appropriate treatment.
Serious arterial and venous thromboembolic (TE) events have been reported at the recommended dose of C1 Esterase Inhibitor (Human) products, including BERINERT, following administration in patients with HAE. Risk factors may include the presence of an indwelling venous catheter/access device, prior history of thrombosis, underlying atherosclerosis, use of oral contraceptives or certain androgens, morbid obesity, and immobility. Benefits of treatment of HAE attacks should be weighed against the risks of TE events in patients with underlying risk factors. Monitor patients with known risk factors for TE events during and after BERINERT administration.
TE events have also been reported following administration of a C1 Esterase Inhibitor (Human) product when used for unapproved indications at higher than recommended doses1,2 [see Overdosage (10) and Nonclinical Toxicology (13.2)].
Because BERINERT 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 minimized 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 a wide range of viruses [see Description (11)].
Despite these measures, such products may still potentially transmit disease and there is also the possibility that unknown infectious agents may be present in such products. However, since implementation of these measures, no case reports on suspected transmission of viruses have demonstrated a causal relationship to the administration of BERINERT.
All infections thought by a physician possibly to have been transmitted by BERINERT should be reported by lot number, by the physician, or other healthcare provider to the CSL Behring Pharmacovigilance Department at 1-866-915-6958.
The most serious adverse reaction reported in subjects enrolled in clinical studies who received BERINERT was an increase in the severity of pain associated with HAE.
The most common adverse reaction reported in greater than 4% of the subjects and greater than placebo among subjects who received BERINERT in the placebo-controlled clinical trial was dysgeusia.
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.
Placebo-controlled Clinical Study
In the placebo-controlled clinical study, referred to as the randomized clinical trial (RCT) [see Clinical Studies (14)], 124 subjects experiencing an acute moderate to severe abdominal or facial HAE attack were treated with BERINERT (either a 10 IU per kg body weight or a 20 IU per kg body weight dose), or placebo (physiological saline solution).
The treatment-emergent serious adverse reactions/events that occurred in 5 subjects in the RCT were laryngeal edema, facial HAE attacks with laryngeal edema, swelling (shoulder and chest), exacerbation of hereditary angioedema, and laryngospasm.
After initial infusion or rescue Medication treatment with BERINERT versus placebo, in the intent-to-treat population only one adverse reaction was reported in greater than one subject in either treatment group, at a frequency higher than placebo: dysgeusia was reported within 4 hours of infusion of BERINERT versus placebo (2/43, 4.7% vs. 0/42, 0%) and up to 72 hours (2/43, 4.7% vs. 1/42, 2.4%). Because more subjects in the placebo group than in the BERINERT group received rescue treatment, the median observation period in this analysis for subjects randomized to placebo was slightly longer than for subjects randomized to receive BERINERT.
Subjects were tested at baseline and after 3 months for possible exposure to Parvovirus B19, hepatitis B, hepatitis C, and HIV-1 and HIV-2. No subject who underwent testing evidenced seroconversion or treatment-emergent positive polymerase chain reaction testing for these pathogens.
Open-Label Extension Study
In the safety analysis of the open-label extension study, 57 subjects with 1085 acute moderate to severe abdominal, facial, peripheral, and laryngeal HAE attacks received a 20 IU/kg body weight dose of BERINERT [see Clinical Studies (14)]. This study provides additional safety data in subjects who received multiple infusions of the product for sequential HAE attacks (one infusion per attack).
Table 1 lists the adverse reactions that occurred in the safety analysis of the open-label extension study in ≥2 subjects or associated with ≥5 HAE attacks during infusion or within 24 hours or 72 hours after the end of a BERINERT infusion.
Number (%) of subjects (n=57) | Number (%) of Attacks (n=1085) |
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Preferred term | ARs within 24 hours | ARs within 72 hours | ARs within 24 hours | ARs within 72 hours |
N = total number of subjects/HAE attacks | ||||
Data are sorted by decreasing frequency by number of subjects. | ||||
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Any preferred term | 13 (22.8%) | 20 (35.1%) | 27 (2.5%) | 41 (3.8%) |
Headache | 2 (3.5%) | 4 (7.0%) | 3 (0.3%) | 6 (0.6%) |
Nasopharyngitis | 1 (1.8%) | 2 (3.5%) | 1 (<0.1%) | 2 (0.2%) |
Abdominal pain or discomfort | 1 (1.8%) | 3 (5.3%) | 2 (0.2%) | 6 (0.6%) |
Upper respiratory tract infection | 0 (0) | 1 (1.8%) | 0 (0) | 1 (<0.1%) |
Hereditary angioedema attack† | 1 (1.8%) | 1 (1.8%) | 1 (<0.1%) | 1 (<0.1%) |
Influenza like illness | 1 (1.8%) | 2 (3.5%) | 1 (<0.1%) | 2 (0.2%) |
Rash | 2 (3.5%) | 2 (3.5%) | 2 (0.2%) | 2 (0.2%) |
Vulvovaginal mycotic infection | 0 (0) | 2 (3.5%) | 0 (0) | 2 (0.2%) |
Nausea | 1 (1.8%) | 1 (1.8%) | 4 (0.4%) | 5 (0.5%) |
The incidence and type of adverse reactions with BERINERT when administered for treatment of multiple consecutive acute HAE attacks of any type was similar to those previously observed. As in the placebo-controlled study, no proven cases of infections due to HIV-1/2, HAV, HBV, HCV or Parvovirus B19 were observed during the study.
In a post-marketing study forty-six subjects with Type I or Type II HAE were monitored for inhibitory or non-inhibitory antibodies to C1-INH. Blood samples for antibody assessment were taken at Day 1 (First HAE attack requiring administration of a dose of 20 IU/kg IV, baseline value), and at 3, 6 and 9 months. No subjects developed inhibitory antibodies to C1-INH at any of the time points following infusion of BERINERT. Thirteen subjects (28.2%), however, had detectable levels of non-inhibitory Abs at some point during the study, including 9 subjects (19.6%) who had detectable non-inhibitory Abs at baseline. The presence of non-inhibitory anti-C1-INH Abs did not induce apparent immunologically-associated clinical events.
The detection of antibody formation is highly dependent on the sensitivity and specificity of the assay. Additionally, the observed incidence of antibody (including neutralizing antibody) positivity in an assay may be influenced by several factors including assay methodology, sample handling, timing of sample collection, concomitant medications, and underlying disease. For these reasons, it may be misleading to compare the incidence of antibodies to BERINERT in the studies described above with the incidence of antibodies in other studies or to other products.
Because postmarketing reporting of adverse reactions is voluntary and from a population of uncertain size, it is not always possible to reliably estimate the frequency of these reactions or establish a causal relationship to product exposure.
Adverse reactions reported in Europe since 1979 in patients receiving BERINERT for treatment of HAE include hypersensitivity/anaphylactic reactions, injection-site pain, injection-site redness, chills, and fever.
TE Events Associated with HAE Treatment
TE events including basilar artery thrombosis, multiple pulmonary microemboli, and thrombosis have been reported with the use of BERINERT at the recommended dose following treatment of HAE.
TE Events Associated with Use in Unapproved Indications
TE events have also been reported with the use of BERINERT in patients receiving higher than recommended doses during cardiac surgery (unapproved indication) include carotid artery thrombosis, cerebral thrombosis, myocardial infarction, pulmonary embolism, renal vein thrombosis, sagittal sinus thrombosis, inferior vena cava thrombosis, superior vena cava thrombosis, internal jugular vein thrombosis, and peripheral venous thrombosis.1
The following adverse reactions, identified by system organ class, have been attributed to BERINERT during post-approval use outside the US.
Data
Risk in BERINERT patients
In a retrospective case collection study, 20 pregnant women ranging in age from 20 to 35 years received BERINERT with repeated doses up to 3,500 IU per HAE attack; these women reported no complications during delivery and no harmful effects on their 34 neonates.3 BERINERT should be given to a pregnant woman only if clearly needed.
Safety and efficacy of BERINERT have been evaluated in 12 pediatric patients with HAE (age range 10 to 16 years) in the placebo controlled and open-label extension studies. BERINERT was also evaluated in 18 pediatric patients with HAE (age range 5 to 11 years) in a Registry Study conducted in the US and Europe. The safety profile observed in the pediatric population was similar to that observed in adults. The pharmacokinetics of BERINERT were evaluated in 5 pediatric subjects (ages 6 through 13) [see Clinical Pharmacology (12.3)].
The safety and efficacy of BERINERT in the geriatric population have not been evaluated in controlled clinical studies. BERINERT was evaluated in 27 geriatric subjects (age range 65 to 83 years) with HAE in a Registry Study conducted in the US and Europe. The safety profile observed in the geriatric population was similar to that observed in the younger populations studied.
The development of thrombosis has been reported after doses exceeding 20 IU/kg body weight of BERINERT when used for unapproved indications in newborns and young children with congenital heart anomalies during or after cardiac surgery under extracorporeal circulation.1
The maximum dose administered in clinical studies in hereditary angioedema was 20 IU/kg body weight.
BERINERT is a human plasma-derived, purified, pasteurized, lyophilized concentrate of C1 esterase inhibitor to be reconstituted for intravenous administration. BERINERT is prepared from large pools of human plasma from US donors. The potency of C1 esterase inhibitor is expressed in International Units (IU), which is related to the current WHO Standard for C1 esterase inhibitor products.
C1 esterase inhibitor is a soluble, single-chain glycoprotein containing 478 amino acid residues organized into three beta-sheets and eight or nine alpha-helices.4 The heavily glycosylated molecule has an apparent molecular weight of 105 kD, of which the carbohydrate chains comprise 26% to 35%.5
Each 500 IU vial of reconstituted BERINERT contains 400-625 IU C1 esterase inhibitor, 50 to 80 mg total protein, 85 to 115 mg glycine, 70 to 100 mg sodium chloride, and 25 to 35 mg sodium citrate.
All plasma used in the manufacture of BERINERT is obtained from US 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). In addition, 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 BERINERT includes multiple steps that reduce the risk of virus transmission. The virus inactivation/reduction capacity consists of three steps:
This was evaluated in a series of in vitro spiking experiments. The total mean cumulative virus inactivation/reduction is shown in Table 2.
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 esterase inhibitor 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 esterase inhibitor has an important inhibiting potential on several of the major cascade systems of the human body, including the complement system, the intrinsic coagulation (contact) system, the fibrinolytic system, and the coagulation cascade. Regulation of these systems is performed through the formation of complexes between the proteinase and the inhibitor, resulting in inactivation of both and consumption of the C1 esterase inhibitor.
C1 esterase inhibitor, which is usually activated during the inflammatory process, inactivates its substrate by covalently binding to the reactive site. C1 esterase inhibitor is the only known inhibitor for the subcomponent of the complement component 1 (C1r), C1s, coagulation factor XIIa, and kallikrein. Additionally, C1 esterase inhibitor is the main inhibitor for coagulation factor XIa of the intrinsic coagulation cascade.
HAE patients have low levels of endogenous or functional C1 esterase inhibitor. Although the events that induce HAE 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 esterase inhibitor through the inactivation of plasma kallikrein and factor XIIa is thought to modulate this vascular permeability by preventing the generation of bradykinin.6
Administration of BERINERT to patients with C1 esterase inhibitor deficiency replaces the missing or malfunctioning protein in patients. The plasma concentration of C1 esterase inhibitor in healthy volunteers is approximately 270 mg/L.7
The pharmacokinetics of BERINERT were evaluated in an open-label, uncontrolled, single-center study in 40 subjects (35 adults and 5 children under 16 years of age) with either mild or severe HAE. All subjects received a single intravenous injection of BERINERT ranging from 500 IU to 1500 IU. Blood samples were taken during an HAE attack-free period at baseline and for up to 72 hours after drug administration. Pharmacokinetic parameters were estimated using non-compartmental analysis (with or without baseline adjustment). Table 3 summarizes the pharmacokinetic parameters in 35 adult subjects with HAE.
Parameters | Unadjusted for baseline | Adjusted for baseline |
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AUC: Area under the curve | ||
CL: Clearance | ||
Vss: Volume steady state | ||
MRT: Mean residence time | ||
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AUC(0-t) (hr × IU/mL)* | 27.5 ± 8.5 (15.7-44.7) | 12.8 ± 6.7 (3.9-34.7) |
CL (mL/hr/kg) | 0.60 ± 0.17 (0.34-0.96) | 1.44 ± 0.67 (0.43-3.85) |
Vss (mL/kg) | 18.6 ± 4.9 (11.1-27.6) | 35.4 ± 10.5 (14.1-56.1) |
Half-life (hrs) | 21.9 ± 1.7 (16.5-24.4) | 18.4 ± 3.5 (7.4-22.8) |
MRT (hrs) | 31.5 ± 2.4 (23.7-35.2) | 26.4 ± 5.0 (10.7-33.0) |
Table 4 summarizes the pharmacokinetic parameters in 5 pediatric subjects (ages 6 through 13) with HAE. When adjusted for baseline, compared to adults, the half-life of BERINERT was shorter and clearance (on per kg basis) was faster in this limited cohort of children. However, the clinical implication of this difference is not known.
Parameters | Unadjusted for baseline | Adjusted for baseline |
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AUC: Area under the curve | ||
CL: Clearance | ||
Vss: Volume steady state | ||
MRT: Mean residence time | ||
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AUC(0-t) (hr × IU/mL)† | 25.45 ± 5.8 (16.8-31.7) | 9.78 ± 4.37 (4.1-15.2) |
CL (mL/hr/kg) | 0.62 ± 0.17 (0.47-0.89) | 1.9 ± 1.1 (0.98-3.69) |
Vss (mL/kg) | 19.8 ± 4.0 (16.7-26.1) | 38.8 ± 8.9 (31.9-54.0) |
Half-life (hrs) | 22.4 ± 1.6 (20.3-24.4) | 16.7 ± 5.8 (7.4-22.5) |
MRT (hrs) | 32.3 ± 2.3 (29.3-35.2) | 24.0 ± 8.3 (10.7-32.4) |
Studies have not been conducted to evaluate the pharmacokinetics of BERINERT in special patient populations identified by gender, race, geriatric age, or the presence of renal or hepatic impairment.
No animal studies have been completed to evaluate the effects of BERINERT on carcinogenesis, mutagenesis, and impairment of fertility.
Acute intravenous toxicity of BERINERT was performed in mice at 1500, 3000, and 6000 IU/kg and in rats at 1000, 2000, and 3000 IU/kg. BERINERT was well tolerated and no signs of toxicity were observed up to the highest dose administered.
Repeat intravenous dose toxicity was studied in a 14-day repeat dose study in rats at doses of 20, 60, and 200 IU/kg/day. BERINERT was well tolerated and no toxicity was observed up to the highest dose administered. No antibody response against C1 esterase inhibitor could be demonstrated in this study after multiple dosing with BERINERT.
In a safety pharmacology study, BERINERT was administered to beagle dogs intravenously at a cumulative dose of 3500 IU/kg. No adverse effects were seen on the cardiovascular and respiratory system. There was a drop in body temperature, reduced coagulation time, and a decrease in thrombocyte aggregation.
Local intravenous tolerance of BERINERT was evaluated in rabbits at 1500 IU. No pathological changes were noted at the time of injection or during the following 24 hours. No pathological signs were noted during necropsy.
A study in pigs investigating cardioprotective effects of C1 esterase inhibitor suggests a risk of thrombosis from intravenous administration of C1 esterase inhibitor products at doses of 200 IU/kg; however, in this model, cardioprotective effects were observed at a dose of 40 IU/kg.2
The safety and efficacy of BERINERT in the treatment of acute abdominal or facial HAE attacks in subjects with hereditary angioedema were demonstrated in a placebo-controlled, double-blind, prospective, multinational, randomized, parallel-group, dose-finding, three-arm, clinical study, referred to as the randomized clinical trial (RCT). The RCT assessed the efficacy and safety of BERINERT in 124 adult and pediatric subjects with C1 esterase inhibitor deficiency who were experiencing an acute moderate to severe attack of abdominal or facial HAE. Subjects ranged in age from six to 72 years of age; 67.7% were female and 32.3% were male; and approximately 90% were Caucasian.
The study objectives were to evaluate whether BERINERT shortens the time to onset of relief of symptoms of an abdominal or facial HAE attack compared to placebo and to compare the efficacy of two different doses of BERINERT. The time to onset of relief of symptoms was determined by the subject's response to a standard question posed at appropriate time intervals for as long as 24 hours after start of treatment, taking into account all single HAE symptoms. In addition, the severity of individual HAE symptoms was assessed over time.
Subjects were randomized to receive a single 10 IU/kg body weight dose of BERINERT (39 subjects), a single 20 IU/kg dose of BERINERT (43 subjects), or a single dose of placebo (42 subjects) by slow intravenous infusion (recommended to be given at a rate of approximately 4 mL per minute) within 5 hours of an HAE attack. At least 70% of the subjects in each treatment group were required to be experiencing an abdominal HAE attack.
If a subject experienced no relief or insufficient relief of symptoms by 4 hours after infusion, investigators had the option to administer a second infusion of BERINERT (20 IU/kg for the placebo group, 10 IU/kg for the 10 IU/kg group), or placebo (for the 20 IU/kg group). This masked (blinded) "rescue study medication" was administered to subjects and they were then followed until complete resolution of symptoms was achieved. Adverse events were collected for up to 7 to 9 days following the initial administration of BERINERT or placebo.
In the rare case that a subject developed life-threatening laryngeal edema after inclusion into the study, immediate start of open-label treatment with a 20 IU/kg body weight dose of BERINERT was allowed.
All subjects who received confounding medication (rescue medication) before symptom relief were regarded as "non-responders". Therefore, time to onset of symptom relief was set at 24 hours if a subject received any rescue medication (ie, rescue study medication, narcotic analgesics, non-narcotic analgesics, anti-emetics, open-label C1 inhibitor, androgens at increased dose, or fresh frozen plasma) between 5 hours before administration of blinded study medication until time to onset of relief.
For the trial to be considered successful, the study protocol specified the following criteria for the differences between the BERINERT 20 IU/kg and the placebo group:
Subjects treated with 20 IU/kg body weight of BERINERT experienced a significant reduction (p=0.0016; "Wilcoxon Rank Sum test") in time to onset of relief from symptoms of an HAE attack as compared to placebo (median of 48 minutes for BERINERT 20 IU/kg body weight, as compared to a median of >4 hours for placebo). The time to onset of relief from symptoms of an HAE attack for subjects in the 10 IU/kg dose of BERINERT was not statistically significantly different from that of subjects in the placebo group.
Figure 9 is a Kaplan-Meier curve showing the percentage of subjects reporting onset of relief of HAE attack symptoms as a function of time. Individual time points beyond 4 hours are not presented on the graph because the protocol permitted blinded rescue medication, analgesics, and/or anti-emetics to be administered starting 4 hours after randomized blinded study medication had been administered.
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Figure 9. Time to Onset of Symptom Relief with Imputation to >4 hours for subjects Who Received any Rescue Medication* or Non-narcotic Analgesics Before Start of Relief |
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In addition, the efficacy of BERINERT 20 IU/kg body weight could be confirmed by observing a reduction in the intensity of single HAE symptoms at an earlier time compared to placebo. For abdominal attacks Figure 10 shows the time to start of relief of the last symptom to improve that was already present at baseline. Pre-defined abdominal HAE symptoms included pain, nausea, vomiting, cramps and diarrhea. Figure 11 shows the respective time to start of relief of the first symptom to improve that was already present at baseline.
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Figure 10. Time to Start of Relief of the Last Symptom to Improve (Abdominal HAE Attacks) with Imputation to >4 hours for subjects Who Received any Rescue Medication* Before Start of Relief |
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Figure 11. Time to Start of Relief of the First Symptom to Improve (Abdominal HAE Attacks) with Imputation to >4 hours for subjects Who Received Any Rescue Medication* Before Start of Relief |
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For facial attacks, single HAE symptoms were recorded. In addition, photos were taken at pre-determined time points and assessed by the members of an independent Data Safety Monitoring Board (DSMB), who were blinded as to treatment, center and other outcome measures. The change in the severity of the edema when compared to baseline was assessed on a scale with outcomes "no change", "better", "worse" and "resolved". Figure 12 shows the time to start of relief from serial facial photographs by DSMB assessment.
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Figure 12. Time to Start of Relief from Serial Facial Photographs* |
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Table 5 compares additional endpoints, including changes in HAE symptoms and use of rescue medication in subjects receiving BERINERT at 20 IU/kg body weight and placebo.
Additional Endpoints | Number (%) of subjects BERINERT 20 IU/kg Body Weight Group (n=43) | Number (%) of subjects Placebo Group (n=42) |
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Onset of symptom relief within 60 minutes after administration of study medication (post-hoc) | 27 (62.8%) | 11 (26.2%) |
Onset of symptom relief within 4 hours after administration of study medication | 30 (69.8%) | 18 (42.9%) |
Number of vomiting episodes within 4 hours after start of study treatment* | 6 episodes | 35 episodes |
Worsened intensity of clinical HAE symptoms between 2 and 4 hours after administration of study medication compared to baseline† | 0 (0%) | 12 (28.6%) |
Number (percent) of combined abdominal and facial HAE attack subjects receiving rescue study medication, analgesics, or anti-emetics at any time prior to initial relief of symptoms | 13 (30.2%) | 23 (54.8%) |
At least one new HAE symptom not present at baseline and starting within 4 hours after administration of study medication | 2 (4.6%) | 6 (14.3%) |
Both the proportion of subjects with increased intensity of clinical HAE symptoms between 2 and 4 hours after start of treatment compared to baseline, and the number of vomiting episodes within 4 hours after start of study treatment demonstrated trends in favor of BERINERT in comparison to placebo (p-values <0.1). Tables 6 through 9 present additional information regarding responses to treatment.
HAE Attack Type | BERINERT 20 IU/kg Body Weight (Abdominal subjects = 34) (Facial subjects = 9) (Other subjects = 0) | Placebo Group (Abdominal subjects = 33) (Facial subjects = 8) (Other subjects = 1)* |
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Abdominal | 24 (70.6%) | 15 (45.5%) |
Facial | 6 (66.7%) | 3 (37.5%) |
HAE Attack Type | BERINERT 20 IU/kg Body Weight (Abdominal subjects = 34) (Facial subjects = 9) | Placebo Group (Abdominal subjects = 33) (Facial subjects = 8) |
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Abdominal | 33 (97.1%) | 29 (87.9%) |
Facial | 6 (66.7%) | 4 (50%) |
Attack Type | BERINERT 20 IU/kg Body Weight (Subjects = 9) | Placebo Group (Subjects = 8) |
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Facial | 7 (77.8%) | 2 (25%) |
HAE Attack Type | BERINERT 20 IU/kg Body Weight | Placebo Group |
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(Abdominal subjects = 34) (Facial subjects = 9) | (Abdominal subjects = 33) (Facial subjects = 8) |
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Abdominal | 7 (20.6%) | 17 (51.5%) |
Facial | 1 (11.1%) | 6 (75%) |
No subjects treated with BERINERT at 20 IU/kg body weight reported worsening of symptoms at 4 hours after administration of study medication compared to baseline.
The study demonstrated that the BERINERT 20 IU/kg body weight dose was significantly more efficacious than the BERINERT 10 IU/kg body weight dose or placebo.
Open-Label Extension Study
BERINERT was evaluated in a prospective, open-label, uncontrolled, multicenter extension study conducted at 15 centers in the US and Canada in subjects who had participated in the RCT study for the treatment of acute abdominal or facial HAE attacks in subjects with hereditary angioedema.
The purpose of this extension study was to provide BERINERT to subjects who had participated in the RCT study and who experienced any type of subsequent HAE attack (ie, abdominal, facial, peripheral, or laryngeal).
The safety analysis of the open-label extension study included a total of 57 subjects (19 males and 38 females, age range: 10 to 53 years) with 1085 HAE attacks treated with 20 IU/kg body weight dose of BERINERT per attack, who were observed at the study site until onset of relief of HAE symptoms, and were followed up for adverse reactions for 7 to 9 days following treatment of each HAE attack [see Adverse Reactions (6.1)]. During the extension study, 51 subjects experienced 747 abdominal attacks, 21 subjects experienced 51 facial HAE attacks, 30 subjects experienced 235 peripheral HAE attacks, and 16 subjects experienced 48 laryngeal HAE attacks. Some study subjects may have experienced HAE attacks in more than one location.
An analysis of laryngeal HAE attacks showed that the median time to initial onset of symptom relief and median time to complete resolution in the per-attack analysis were 0.25 hours and 8.4 hours, respectively (Table 10), which were the shortest times among the various HAE attack locations.
Statistic | Laryngeal (n=48) |
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CI = confidence interval | |
HAE = hereditary angioedema | |
N = number of attacks | |
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Time to initial onset of symptom relief [hours] | |
Median (range) | 0.25 (0.10 - 1.25) |
95% CI for median | [0.23; 0.42] |
Time to complete resolution of HAE symptoms [hours] | |
Median (range) | 8.4 (0.6 - 61.8*) |
95% CI for median | [6.2; 21.5] |
There were no clinically relevant or consistent data suggesting that gender, age group, race/ethnic group, type of HAE, routine use of androgens, or presence of detectable anti-C1 Esterase Inhibitor antibodies had an effect on the time to initial or complete relief of symptoms following BERINERT.
The prospective open-label extension study demonstrated that, in comparison to untreated historical control data retrospectively collected at a study center in Germany over a 20 year period8, the BERINERT 20 IU/kg body weight dose appeared to be effective in ameliorating laryngeal HAE attacks by achieving complete resolution of HAE symptoms within 24 hours from attack onset in the majority of subjects. The treatment effects observed with BERINERT in the extension study are consistent with the findings from the placebo-controlled efficacy trial.
How Supplied
Each product presentation includes a package insert and the following components:
Presentation | Carton NDC Number | Components |
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500 IU | 63833-825-02 |
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Advise the patients to read the FDA-approved patient labeling (Patient Information).
Inform patients to immediately report the following to their physician:
Self-administration — Ensure that the patient (or caregiver) is an appropriate candidate for self-administration, this includes, but not limited to a determination that:
If self-administration is deemed appropriate, ensure that the patient/caregiver receives clear instructions and training on intravenous administration in the home or other appropriate setting and has demonstrated the ability to perform intravenous infusions.
FDA-Approved Patient Labeling – Patient Product Information (PPI)
BERINERT (BEAR-ĭ-nert)
C1 Esterase Inhibitor (Human)
Freeze-Dried Powder for Reconstitution
This leaflet summarizes important information about BERINERT. Please read it carefully before using BERINERT 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 BERINERT. 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 BERINERT?
BERINERT is an injectable medicine used to treat swelling and/or painful HAE attacks in adults and children 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. BERINERT contains C1 esterase inhibitor, a protein that helps control C1.
Who should not use BERINERT?
You should not use BERINERT if you have experienced life-threatening immediate hypersensitivity reactions, including anaphylaxis, to the product.
What should I tell my healthcare provider before using BERINERT?
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 BERINERT?
Allergic reactions may occur with BERINERT. Call your healthcare provider or seek emergency support services right away if you have any of the following symptoms after using BERINERT:
Signs of a blood clot include:
In clinical studies, the most serious adverse reaction reported in subjects who received BERINERT was an increase in the severity of pain associated with HAE.
In clinical studies, the most common adverse reaction reported among subjects who received BERINERT in the placebo-controlled clinical trial was dysgeusia (bad taste in mouth).
Because BERINERT is made from human blood, it may carry a risk of transmitting infectious agents, such as viruses, the variant Creutzfeldt-Jakob disease (vCJD) agent and, theoretically, the Creutzfeldt-Jakob (CJD) agent.
These are not all the possible side effects of BERINERT.
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 BERINERT?
What else should I know about BERINERT?
Medicines are sometimes prescribed for purposes other than those listed here. Do not use BERINERT for a condition for which it is not prescribed. Do not share BERINERT with other people, even if they have the same symptoms that you have.
This leaflet summarizes the most important information about BERINERT. If you would like more information, talk to your healthcare provider. You can ask your healthcare provider or pharmacist for information about BERINERT that was written for healthcare professionals. For more information, go to www.BERINERT.com or call 1-877-236-4423.
What are the symptoms of a facial, abdominal or laryngeal Hereditary Angioedema (HAE) attack?
Early HAE symptoms appear anywhere from minutes to one to two days before the attack worsens. HAE attacks can last hours to several days, and range in severity. Itching is not a typical feature of HAE attacks.
Facial attacks — These HAE attacks can occur in areas around the eyes and mouth, and result from local edema of tissue beneath the skin (subcutaneous).
Abdominal attacks — These HAE attacks appear as pain (colic), nausea, vomiting, and/or diarrhea. These symptoms result from the swelling of walls of the gastrointestinal tract.
Laryngeal HAE attacks — Laryngeal edema (swelling of the voice box, difficulty breathing, loss of voice, and noisy breathing on inspiration), can occur by itself, or with swelling of the lips, tongue, uvula (the piece of mouth tissue that hangs down from the top of the mouth over the back of the tongue), and soft palate (the soft tissue at the back of the mouth). Removing a tooth and oral surgery can trigger a laryngeal attack. Laryngeal swelling can develop in minutes or hours.
Many HAE attacks involve only one location of the body at a time, although combination attacks, such as cutaneous attacks that spread to involve the larynx (the voice box), can occur.
What other diseases or symptoms could resemble a HAE attack?
Some abdominal-related causes that can appear as an HAE attack include:
Other symptoms that can appear as an HAE attack include:
What should I know about self-administration?
Instructions for Use
Reconstitution and Administration
Reconstitution
The procedures below are provided as general guidelines for the reconstitution of BERINERT.
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SELF-ADMINISTRATION (Intravenous Infusion)
Your healthcare provider will teach you how to safely administer BERINERT. It is important that BERINERT is injected directly into a visible vein. Do not inject into surrounding tissues or into an artery. Once you learn how to self-administer, follow the instructions provided below.
Step 1: Assemble supplies
Gather the BERINERT syringe, the following disposable supplies (not provided with BERINERT), and other items (sharps or other container, treatment diary or log book):
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Step 2: Wash hands
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Step 3: Clean surface
Thoroughly clean a table or other flat surface using one or more of the alcohol wipes. | |
Step 4: Prime the infusion set
As instructed by your healthcare provider:
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Step 5: Prepare the infusion site
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Step 6: Infusion
As instructed by your healthcare provider:
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Step 7: Clean up
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Step 8: Record treatment
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This Patient Package Insert has been approved by the US Food and Drug Administration.
NDC: 63833-835-01
C1 Esterase
Inhibitor (Human)
BERINERT®
For Intravenous Use Only.
Manufactured by:
CSL Behring GmbH
35041 Marburg, Germany
US License No. 1765
Distributed by:
CSL Behring LLC
Kankakee, IL 60901 USA
Code
NDC: 63833-825-02
One Vial and Sterile Water for Injection, USP
500 IU
C1 Esterase Inhibitor
(Human)
BERINERT®
For Intravenous Use Only.
CSL Behring
BERINERT
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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BERINERT 76045453 2613930 Live/Registered |
CSL BEHRING GMBH 2000-05-09 |