Qivigy Drug Information

QIVIGY (immune globulin intravenous, human-kthm) 10% solution is indicated for the treatment of adults with Primary Humoral Immunodeficiency (PI). This includes, but is not limited to, congenital agammaglobulinemia, common variable immunodeficiency (CVID), X-linked agammaglobulinemia, Wiskott-Aldrich syndrome, and severe combined immunodeficiencies.

Recommended Dosage Table 1. Recommended Dosage for QIVIGY Adjust frequency and dosage overtime to achieve target serum IgG levels and clinical response. If a patient misses a dose, administer the missed dose as soon as possible, and then resume scheduled treatments every 3 or 4 weeks, as applicable.

In patients judged to have a potential increased risk for developing acute renal failure or thrombosis, QIVIGY should be administered at the minimum rate of infusion and dose practicable. In case of renal impairment, IGIV discontinuation should be considered. Measles pre-/post exposure prophylaxis Post-exposure prophylaxis If a patient has been exposed to measles, a dose of 400 mg/kg (4 mL/kg) of QIVIGY should be administered as soon as possible after exposure.

Pre-exposure prophylaxis If a patient routinely receives a dose of less than 400 mg/kg of QIVIGY every 3 to 4 weeks (less than 4 mL/kg) and is at risk of measles exposure (i.e. traveling to a measles endemic area), administer a dose of at least 400 mg/kg (4 mL/kg) just prior to the expected measles exposure.

Preparation and Handling QIVIGY is a clear or slightly opalescent and colorless or pale-yellow solution. Inspect QIVIGY visually for particulate matter and discoloration prior to administration, whenever the solution and container permit. Do not use if the solution is cloudy, turbid, or if it contains particulate matter or deposits.

Do not shake. Do not dilute. QIVIGY should be brought to room temperature before use (up to 25 °C ).

Keep the vial in the outer carton. If the packaging shows any signs of tampering, do not use the product and notify Kedrion Biopharma Inc. immediately at 1-855-3KDRION (1-855-353-7466). The QIVIGY vial is for single use only.

Any vial that has been opened must be used immediately. QIVIGY contains no preservative. For administration of large doses, pool multiple vials using aseptic technique Infuse QIVIGY using a separate infusion line.

At the end of the infusion flush tubing with saline solution or Dextrose 5% in water (D5W) to ensure that the entire dose is administered. Do not mix QIVIGY with other IGIV products or other intravenous medications (including normal saline) Do not use after expiration date. Record the batch number every time QIVIGY is administered to a patient.

Dispose partially used or unused product or waste material in accordance with local requirements.

Administration

Intravenous administration only. Hydrate the patient adequately prior to the initiation of infusion. Infuse QIVIGY intravenously using an intravenous infusion set.

See Table 1 for recommended infusion rates. Monitor patient vital signs throughout the infusion. The rate of infusion can be related to certain severe adverse drug reactions.

Slow or stop infusion if adverse reactions occur. If symptoms subside promptly, resume infusion at a lower rate as tolerated by the patient. The observation time of patients after QIVIGY administration may vary.

If the patient (a) has not received QIVIGY or another IgG product, (b) is switched from an alternative IGIV product or (c) has had a long interval since the previous infusion, prolong the observation time for adverse reactions after QIVIGY infusion. Ensure that patients with pre-existing renal insufficiency are not volume depleted. For patients at risk of renal dysfunction or thrombosis, administer QIVIGY at the minimum dose and infusion rate practicable and discontinue QIVIGY if renal function deteriorates.

Clinical Trials Experience

Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of one drug cannot be directly compared to rates in other clinical trials of another drug and may not reflect the rates observed in clinical practice. The safety data described in this section reflects exposure to QIVIGY in one clinical study. A total of 643 infusions of QIVIGY were administered, 136 in the every 3-week schedule and 507 in the 4-week schedule.

During the study, 4 out of 47 (9%) patients received premedication. The most common product-related adverse events observed in ≥ 5% of clinical study patients with PI were headache, infusion-related reaction, Coombs direct test positive, fatigue, and nausea. Table 2 lists the most common adverse reactions reported in ≥5% of patients.

Table 2: Adverse Reactions Adverse reactions were defined as adverse events occurring during or within 72 hours of infusion or any causally related event occurring within the study period. Occurring in ≥ 5% of Patients

Postmarketing Experience

Because adverse reactions 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. The following adverse reactions have been identified and reported during the post-approval use of IGIV products: Respiratory: Apnea, Acute Respiratory Distress Syndrome (ARDS), Transfusion-Related Acute Lung Injury (TRALI), respiratory failure, hypoxemia, pulmonary edema, dyspnea, wheezing, cough, bronchospasm, pulmonary embolism. Cardiovascular: Cardiac arrest, thromboembolism, vascular collapse, hypotension, phlebitis, pallor, angina, tachycardia, bradycardia, palpitations, myocardial infarction, cyanosis.

Neurological: Coma, loss of consciousness, seizures, (acute) encephalopathy, tremor, aseptic meningitis syndrome, migraine, speech disorder, paresthesia, hypoesthesia, photophobia. Integumentary: Stevens-Johnson syndrome, epidermolysis, erythema multiforme, bullous dermatitis, eczema, erythematous rash, dermatitis, pruritus, alopecia, urticaria. Gastrointestinal: Hepatic dysfunction, abdominal pain, diarrhea.

Renal: Acute renal failure, osmotic nephropathy, renal pain. Hematologic: Pancytopenia, leukopenia, hemolysis. Musculoskeletal: Musculoskeletal pain, muscle spasm, arthralgia, myalgia, muscle stiffness.

General disorders and administration site conditions: Pyrexia, rigors, injection-site reactions, chills, flushing, lethargy, malaise, burning sensation. Psychiatric disorders: Confusion, anxiety, agitation, nervousness. Metabolic and nutritional: Fluid overload, (pseudo) hyponatremia.

Immune system disorders: Hypersensitivity (e.g. anaphylaxis, allergic reaction), angioedema. Investigations: Falsely elevated erythrocyte sedimentation rate, positive direct antiglobulin (Coombs') test, increased hepatic enzymes.

Effect of QIVIGY on Live attenuated virus vaccines Immune globulin administration may transiently impair the efficacy of live attenuated virus vaccines such as measles, mumps, rubella, s and varicella because the continued presence of high levels of passively acquired antibody may interfere with an active antibody response. Inform the immunizing physician of recent therapy with QIVIGY so that appropriate measures may be taken.

Effect of QIVIGY on Serological Testing

Passive transmission of antibodies through immune globulin administration may interfere with some serological testing.

Effect of Loop diuretics on QIVIGY The use of loop diuretics should be avoided. Concomitant use of loop diuretics with IGIV may contribute to an increased blood viscosity and subsequently increase the risk of thromboembolic events.

Pregnancy Risk Summary No human data are available to indicate the presence or absence of drug-associated risk. Animal reproduction studies have not been conducted with QIVIGY. It is not known whether QIVIGY can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity.

Immune globulins cross the placenta from maternal circulation. QIVIGY should be given to pregnant women only if clearly needed. In the U.S. general population, the estimated background risk of major birth defect and miscarriage in clinically recognized pregnancies is respectively.

Pediatric Use The safety and effectiveness of QIVIGY have not been established in pediatric patients.

QIVIGY is contraindicated in patients who have had an anaphylactic or severe systemic reaction to the administration of human immune globulin. QIVIGY is contraindicated in IgA deficient patients with antibodies against IgA and history of hypersensitivity. Patients with history of anaphylactic or severe systemic reactions to human immune globulins.

Overdosage of QIVIGY may lead to fluid overload and hyperviscosity, particularly in the elderly and in patients with renal impairment.