Gammagard S/d

Gammagard S/d

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Questions & Answers

Side Effects & Adverse Reactions

WARNING

Immune Globulin Intravenous (Human) products have been reported to be associated with renal dysfunction, acute renal failure, osmotic nephrosis, and death.18 Patients predisposed to acute renal failure include patients with any degree of pre-existing renal insufficiency, diabetes mellitus, age greater than 65, volume depletion, sepsis, paraproteinemia, or patients receiving known nephrotoxic drugs. Especially in such patients, IGIV products should be administered at the minimum concentration available and the minimum rate of infusion practicable. While these reports of renal dysfunction and acute renal failure have been associated with the use of many of the licensed IGIV products, those containing sucrose as a stabilizer accounted for a disproportionate share of the total number.*

See PRECAUTIONS and DOSAGE AND ADMINISTRATION sections for important information intended to reduce the risk of acute renal failure.

 

*GAMMAGARD S/D does not contain sucrose.

GAMMAGARD S/D, Immune Globulin Intravenous (Human) is made from human plasma. Products made from human plasma may contain infectious agents, such as viruses, that can cause disease. 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 inactivating and/or removing certain viruses (see DESCRIPTION). Despite these measures, such products can still potentially transmit disease. Because this product is made from human blood, it may carry a risk of transmitting infectious agents, e.g., viruses and theoretically, the Creutzfeldt-Jakob disease (CJD) agent. ALL infections thought by a physician possibly to have been transmitted by this product should be reported by the physician or other healthcare provider to Baxter Healthcare Corporation at 1-800-423-2862 (in the U.S.). The physician should discuss the risks and benefits of this product with the patient.

GAMMAGARD S/D, Immune Globulin Intravenous (Human), should only be administered intravenously. Other routes of administration have not been evaluated.

Immediate anaphylactic and hypersensitivity reactions are a remote possibility. Epinephrine and antihistamines should be available for treatment of any acute anaphylactoid reactions.

GAMMAGARD S/D, IgA < 1 μg/mL, contains trace amounts of IgA (less than 1 μg/mL in a 5% solution). GAMMAGARD S/D is not indicated in patients with selective IgA deficiency where the IgA deficiency is the only abnormality of concern. It should be given with caution to patients with antibodies to IgA or IgA deficiencies, that are a component of an underlying primary immunodeficiency disease for which IGIV therapy is indicated.7,19 GAMMAGARD S/D, IgA < 1 μg/mL, has an IgA concentration less than 1 μg/mL. GAMMAGARD S/D has an IgA concentration less than or equal to 2.2 μg/mL. IGIV preparations depleted of IgA (0.4 to 2.9 μg/mL) were shown to be better tolerated by a limited number of patients 19,46,47 who reacted to IGIV preparations with higher IgA concentrations. However, the concentration of IgA that will not provoke a reaction is not known, and therefore all IGIV preparations carry the risk of inducing an anaphylactic reaction to IgA. In such instances, a risk of anaphylaxis may exist despite the fact that GAMMAGARD S/D, IgA < 1 μg/mL, contains trace amounts of IgA.

Legal Issues

There is currently no legal information available for this drug.

FDA Safety Alerts

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Manufacturer Warnings

There is currently no manufacturer warning information available for this drug.

FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.

Uses

GAMMAGARD S/D is not indicated in patients with selective IgA deficiency where the IgA deficiency is the only abnormality of concern (see WARNINGS).

Primary Immunodeficiency Diseases

GAMMAGARD S/D is indicated for the treatment of primary immunodeficient states, such as: congenital agammaglobulinemia, common variable immunodeficiency, Wiskott-Aldrich syndrome, and severe combined immunodeficiencies.6,7 This indication was supported by a clinical trial of 17 patients with primary immunodeficiency who received a total of 341 infusions. GAMMAGARD S/D is especially useful when high levels or rapid elevation of circulating IgG are desired or when intramuscular injections are contraindicated (e.g., small muscle mass).

B-cell Chronic Lymphocytic Leukemia (CLL)

GAMMAGARD S/D is indicated for prevention of bacterial infections in patients with hypogammaglobulinemia and/or recurrent bacterial infections associated with B-cell Chronic Lymphocytic Leukemia (CLL). In a study of 81 patients, 41 of whom were treated with GAMMAGARD, Immune Globulin Intravenous (Human), bacterial infections were significantly reduced in the treatment group.8,9 In this study, the placebo group had approximately twice as many bacterial infections as the IGIV group. The median time to first bacterial infection for the IGIV group was greater than 365 days. By contrast, the time to first bacterial infection in the placebo group was 192 days. The number of viral and fungal infections, which were for the most part minor, was not statistically different between the two groups.

Idiopathic Thrombocytopenic Purpura (ITP)

When a rapid rise in platelet count is needed to prevent and/or to control bleeding in a patient with Idiopathic Thrombocytopenic Purpura, the administration of GAMMAGARD S/D should be considered.

The efficacy of GAMMAGARD has been demonstrated in a clinical study involving 16 patients. Of these 16 patients, 13 had chronic ITP (11 adults, 2 children), and 3 patients had acute ITP (one adult, 2 children). All 16 patients (100%) demonstrated a clinically significant rise in platelet count to a level greater than 40,000/mm3 following the administration of GAMMAGARD. Ten of the 16 patients (62.5%) exhibited a significant rise to greater than 80,000 platelets/mm3. Of these 10 patients, 7 had chronic ITP (5 adults, 2 children), and 3 patients had acute ITP (one adult, 2 children).

The rise in platelet count to greater than 40,000/mm3 occurred after a single 1 g/kg infusion of GAMMAGARD in 8 patients with chronic ITP (6 adults, 2 children), and in 2 patients with acute ITP (one adult, one child). A similar response was observed after two 1 g/kg infusions in 3 adult patients with chronic ITP, and one child with acute ITP. The remaining 2 adult patients with chronic ITP received more than two 1 g/kg infusions before achieving a platelet count greater than 40,000/mm3. The rise in platelet count was generally rapid, occurring within 5 days. However, this rise was transient and not considered curative. Platelet count rises lasted 2 to 3 weeks, with a range of 12 days to 6 months. It should be noted that childhood ITP may resolve spontaneously without treatment.

Kawasaki Syndrome

GAMMAGARD S/D is indicated for the prevention of coronary artery aneurysms associated with Kawasaki syndrome. The percentage incidence of coronary artery aneurysm in patients with Kawasaki syndrome receiving GAMMAGARD either at a single dose of 1 g/kg (n=22) or at a dose of 400 mg/kg for four consecutive days (n=22), beginning within seven days of onset of fever, was 3/44 (6.8%). This was significantly different (p=0.008) from a comparable group of patients that received aspirin only in previous trials and of whom 42/185 (22.7%) experienced coronary artery aneurysms.10,11,12 All patients in the GAMMAGARD trial received concomitant aspirin therapy and none experienced hypersensitivity-type reactions (urticaria, bronchospasm or generalized anaphylaxis).13

Several studies have documented the efficacy of intravenous gammaglobulin in reducing the incidence of coronary artery abnormalities resulting from Kawasaki syndrome.10-12, 14-17

History

There is currently no drug history available for this drug.

Other Information

GAMMAGARD S/D, Immune Globulin Intravenous (Human) [IGIV], IgA less than 1 µg/mL in a 5% Solution (IgA < 1 µg/mL), is GAMMAGARD S/D, selected to have an IgA concentration of less than 1 µg/mL of IgA in a 5% solution. GAMMAGARD S/D, Immune Globulin Intravenous (Human) [IGIV] is a solvent/detergent treated, sterile, freeze-dried preparation of highly purified immunoglobulin G (IgG) derived from large pools of human plasma. The product is manufactured by the Cohn-Oncley cold ethanol fractionation process followed by ultrafiltration and ion exchange chromatography. Source material for fractionation may be obtained from another U.S. licensed manufacturer. The manufacturing process includes treatment with an organic solvent/detergent mixture,1,2 composed of tri-n-butyl phosphate, octoxynol 9 and polysorbate 80.3 The GAMMAGARD S/D manufacturing process provides a significant viral reduction in in vitro studies.3 These studies, summarized in Table 1, demonstrate virus clearance during GAMMAGARD S/D manufacturing using human immunodeficiency virus; Type 1 (HIV-1); as a relevant virus and model for HIV-2; bovine viral diarrhea virus (BVD), a model virus for enveloped RNA viruses such as hepatitis C virus (HCV); pseudorabies virus (PRV), a generic model virus for enveloped DNA viruses such as hepatitis B virus (HBV); hepatitis A virus (HAV); and mice minute virus (MMV), a model for small non-enveloped DNA viruses such as human parvovirus B19 (B19V).  These reductions are achieved through a partitioning and inactivation during cold ethanol fractionation and the solvent/detergent treatment.3

Table 1: In Vitro Virus Clearance During GAMMAGARD S/D Manufacturing
*
These values are not included in the computation of the cumulative reduction of virus since the virus clearance is within the variability limit of the assay (≤1.0).
NT Not Tested.
NA Not Applicable. Solvent/detergent treatment does not affect non-enveloped viruses.
Process Step Evaluated Virus Clearance (log10)
Enveloped Viruses Non-Enveloped Viruses
BVD HIV-1 PRV HAV MMV
Step 1 Processing of Cryo-Poor Plasma to Fraction I+II+III Precipitate 0.6* 5.6 1.0* 0.5* NT†
Step 2-3 Processing of Resuspended Suspension A Precipitate to Suspension B Cuno 70 Filtrate 2.6 >5.7 >5.2 >5.2 >5.3
Step 4 Solvent/Detergent Treatment >4.9 >3.7 >4.1 NA‡ NA
Cumulative Reduction of Virus (log10) >7.5 >15.0 >9.3 >5.2 >5.3

When reconstituted with the total volume of diluent (Sterile Water for Injection, USP) supplied, this preparation contains approximately 50 mg of protein per mL (5%), of which at least 90% is gamma globulin. The product, reconstituted to 5%, contains a physiological concentration of sodium chloride (approximately 8.5 mg/mL) and has a pH of 6.8 ± 0.4. Stabilizing agents and additional components are present in the following maximum amounts for a 5% solution: 3 mg/mL Albumin (Human), 22.5 mg/mL glycine, 20 mg/mL glucose, 2 mg/mL polyethylene glycol (PEG), 1 µg/mL tri-n-butyl phosphate, 1 µg/mL octoxynol 9, and 100 µg/mL polysorbate 80. The manufacturing process for GAMMAGARD S/D, isolates IgG without additional chemical or enzymatic modification, and the Fc portion is maintained intact. GAMMAGARD S/D contains all of the IgG antibody activities which are present in the donor population. On the average, the distribution of IgG subclasses present in this product is similar to that in normal plasma.3 GAMMAGARD S/D, IgA < 1 µg/mL, contains trace amounts of IgA (less than 1 µg/mL in a 5% solution) . IgM is also present in trace amounts. If it is necessary to prepare a 10% (100 mg/mL) solution for infusion, half the volume of diluent should be added, as described in DOSAGE AND ADMINISTRATION. In this case, the stabilizing agents and other components, including IgA, will be present at double the concentrations given for the 5% solution.

GAMMAGARD S/D, Immune Globulin Intravenous (Human) contains no preservative.

Gammagard S/d Manufacturers


  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]
  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]
  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]
  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]
  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]
  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]
  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]
  • Baxter Healthcare Corporation
    Gammagard S/d (Human Immunoglobulin G) Kit [Baxter Healthcare Corporation]

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