Security Profile Summary
In clinical trials of ADVATE, 418 patients took part, who received at least one injection of ADVATE. 93 undesirable drug reactions (NLR) were recorded. The most frequently observed NLRs were the appearance of inhibitors (neutralizing antibodies to factor VIII), headache and fever.
Hypersensitivity or allergic reactions (which can include angioedema, burning and itching at the injection site, chills, redness, common urticaria, headache, localized urticaria, hypotension, lethargy, nausea, restlessness, tachycardia, chest tightness, tingling, vomiting, wheezing) were infrequent, but in some cases progressed with the development of severe anaphylaxis (including anaphylactic shock).
The occurrence of antibodies to mouse and / or hamster proteins and associated hypersensitivity reactions can be observed.
In patients with hemophilia A, neutralizing antibodies (inhibitors) can occur to factor VIII. The appearance of such inhibitors manifests itself in the form of an insufficient clinical response.In all such cases, it is recommended to contact a specialized center for hemophilia.
Table 4 presents data on the incidence of adverse reactions reported from clinical trials and from spontaneous reports. Undesirable reactions are classified according to the damage to organs and organ systems; The names of organs and systems of organs are given in accordance with the terminology of the medical vocabulary for regulatory activities (MedDRA).
The incidence of adverse reactions was assessed P according to the WHO classification of NLR for development frequency: very frequent (≥1/10 appointments), frequent (≥1/100 to <1/10 of appointments), infrequent (≥1/1000 to <1/100 of prescriptions), rare (≥1/10000 to <1/1000 assignments), very rare (<1/10000 assignment), the frequency is unknown (can not be determined from available data). Within each frequency gradation, the undesirable effects are presented in order of decreasing severity.
Table 4. Frequency of adverse reactions to systems and organs
Classification of organs and systems of organs (MedDRA) | Unwanted reaction (MedDRA) | Frequency emergencea |
Infectious diseases | Flu | Infrequent |
Laryngitis | Infrequent |
Violations of the blood and lymphatic system | The appearance of factor inhibitors VIIIat | Frequent |
Lymphangitis | Infrequent |
Immune system disorders | Anaphylactic reaction | Frequency unknown |
Hypersensitivityat | Frequency unknown |
Disturbances from the nervous system | Headache | Frequent |
Dizziness | Infrequent |
Memory loss | Infrequent |
Fainting | Infrequent |
Tremor | Infrequent |
Migraine | Infrequent |
Dysgeusia | Infrequent |
Disturbances on the part of the organ of sight | Inflammation of the eye | Infrequent |
Vascular disorders | Hematoma | Infrequent |
Hot flushes | Infrequent |
Pallor | Infrequent |
Heart Disease | Heart palpitations | Infrequent |
Disturbances from the respiratory system, chest and mediastinal organs | Dispnoe | Infrequent |
Disorders from the gastrointestinal tract | Diarrhea | Infrequent |
Pain in the upper abdomen | Infrequent |
Nausea | Infrequent |
Vomiting | Infrequent |
Disturbances from the skin and subcutaneous tissues | Itching | Infrequent |
Rash | Infrequent |
Hyperhidrosis | Infrequent |
Hives | Infrequent |
General disorders and disorders at the site of administration | Fever | Often |
Peripheral edema | Infrequent |
Chest pain | Infrequent |
Feeling of chest discomfort | Infrequent |
chills | infrequent |
change in state of health | infrequent |
hematoma at the site of the vascular puncture | infrequent |
fatigue | frequency unknown |
reactions at the injection site | frequency unknown |
malaise | frequency unknown |
laboratory and instrumental data | activity decrease coagulation factor viiib | infrequent |
increase in the number of monocytes | infrequent |
hematocrit | infrequent |
abnormalities in laboratory test results | infrequent |
trauma, intoxication and complications of manipulation | postprocedural complication | infrequent |
postprocedural complication | infrequent |
reaction at the place of procedure | infrequent |
a) the frequency was calculated in relation to the total number of patients receiving the drug advait (n = 418).
b) an unexpected decrease in the activity of factor viii occurred in one patient during continuous infusion of the drug adwait for 10-14 days after surgery. During this period hemostasis was maintained. the activity of the viii factor in the plasma and the clearance were returned to normal values by the 15th day after the operation.Analyzes of the inhibitors to the factor viii, conducted after the end of the continuous infusion and at the end of the study, gave negative results.
c) information on this undesirable reaction is given below.
description of individual undesirable reactions
occurrence of factor viii inhibitors
the immunogenicity of the drug adwait was studied in clinical trials involving 233 patients (children and adults) with severe hemophilia a (factor level viii ≤ 1%) previously treated with viii concentrates (no less than 150 days of drug administration in adults and children aged ≥ 6 years and not less than 50 days of administration in children younger than 6 years). In one patient, after 26 days of adwait preparation, inhibitors appeared in low titer (2.4 units of bee [b] according to the results of the modified betest test). After discontinuation of the patient's participation in the study, the inhibitors were no longer detected.
the median duration of administration of the drug adwait in previously treated patients in all clinical trials was 97 days (range from 1 to 709 days of administration). the overall incidence of inhibitors (with both high and low titers) was 0.4% (in 1 of 233 patients).
in a completed uncontrolled clinical trial 060103, in 16 of 45 (35.6%) of previously untreated patients with severe hemophilia a (factor level viii ≤ 1%) who received the drug adwait for at least 25 days of use, factor viii inhibitors developed. 7 (15.6%) patients showed a high titer of inhibitors and 9 (20%) patients had a low titer of inhibitors (including one patient whose occurrence of inhibitors was classified as transient).
risk factors for development inhibitors in this study were: non-neuropean ethnicity, family history of the appearance of inhibitors to the factor viii and intensive therapy with high doses of the drug adwait in the first 20 days of administration. In 20 patients who did not have these risk factors, the appearance of inhibitors was not observed.
data were obtained on the induction of immune tolerance (iit), in previously untreated patients, in patients who, with the use of the drug adwait, showed inhibitors to the factor viii. in the course of the study in the study 060103 with the participation of patients who had not previously received treatment, iit treatment was documented in 11 patients who had not previously received treatment.In 30 patients with irit (study 060703), a retrospective analysis of medical records was carried out. The collection of data for the patient registry with ith is currently ongoing.
in study 060201, a comparative analysis of two long-term prophylactic treatment regimens was conducted in 53 patients previously treated (rlp): a dosing regimen selected on the basis of individual pharmacokinetic parameters (within the range of 20 to 80 me factor viii per 1 kg of body weight at intervals of 72 ± 6 hours; n= 23), and a standard prophylactic dosage regimen (20 to 40 IU / kg every 48 ± 6 hours; n= 30). The goal of the dosing scheme, selected on the basis of individual pharmacokinetic parameters (and calculated according to a special formula), was to maintain a minimum level of factor viii ≥ 1% at 72-hour intervals between administrations. the data of this study prove that both preventive dosing regimens are comparable in terms of reducing the frequency of bleeding.
undesirable reactions associated with substances used in the production process
of the 229 patients who received adwait treatment and were tested for the presence of antibodies to the proteins of Chinese hamster ovary cells (sleep),a statistically significant increase in antibody titer was noted in 3 patients, stable peaks or transient elevations of antibody titer were detected in 4 patients, and both were noted in one patient. all these changes in antibody titers were not accompanied by clinical manifestations.
of these 229 treated patients who received adwait treatment and were tested for antibodies to murine immunoglobulin g (igg), a statistically significant increase in antibody titer was noted in 10 patients, stable peaks or transient tiger elevations of antibodies were detected in 2 patients, and in both patients, both. In four of these patients, there were isolated cases of urticaria, pruritus, rash, a slight increase in the number of eosinophils (all of these patients received adwit drug repeatedly).
hypersensitivity
Allergic-type reactions included anaphylaxis and were manifested by dizziness, paresthesia, rashes, flushing, face swelling, hives and itching.
use of the drug in children
except for the formation of inhibitors in previously untreated patients and catheter-associated complications,no differences in the incidence of adverse reactions in patients of different ages in clinical trials have been identified.
reports of suspected adverse reactions
information about suspected adverse reactions allows you to constantly monitor the benefit / risk ratio of the drug adwait. doctors using the drug advaita to treat patients with hemophilia a should report suspected adverse reactions that develop after the issuance of the drug registration certificate to the national pharmacovigilance authorities in accordance with the standard procedure.