Study to Evaluate Safety and Pharmacokinetics of BIVIGAM® in Primary Immune Deficiency Subjects Aged 2 to 16

Inclusion criteria

• Written informed consent/Assent
• Male or female between 2 and 16 years, inclusive, at time of Signing Informed Consent/Assent
• Have a confirmed and documented clinical diagnosis of Primary Immune Deficiency Disorder, including hypogammaglobulinemia or agammaglobulinemia.
• Have received IGIV therapy which was maintained at a steady dose (± 25% of the mean dose) for at least 3 months prior to study entry, and have maintained a trough IgG level at least 500mg/dL prior to receiving BIVIGAM®.
• Subjects and/or parents/legal guardians must be able to understand and adhere to the study visit schedule and all other protocol requirements.

Exclusion criteria

• Known intolerance to immunoglobulins or comparable substances (e.g. vaccination reaction).
• Known intolerance to proteins of human origin or known allergic reactions to components of the study product(s).
• Any previous randomization/participation in this clinical study must be discussed with and approved by the medical director (or designee).
• Inability or lacking motivation to participate in the study.
• Medical condition, laboratory finding, or physical exam finding (specify, e.g., vital signs outside of specific range that precludes participation. Per lab results at the Screening visit through Baseline.
• Confirmed Screening visit laboratory results ˃2.5 X ULN as defined for pediatric populations for any of the following: ALT (alanine aminotransferase/SGPT), AST (aspartate aminotransferase/SGOT), LDH (lactate dehydrogenase), BUN (blood urea nitrogen), Serum creatinine
• Has selective IgA deficiency or demonstrated antibodies to IgA.
• History of thrombotic complications of IGIV therapy or history of (deep vein thrombosis)DVT.
• Current use of daily corticosteroids (>10 mg of prednisone equivalent/day),immunosuppressants or immunomodulators are not allowed unless approved in advance by the medical monitor. Intermittent use of corticosteroids during the study is allowed if medically necessary.
• Positive diagnosis of hepatitis B or hepatitis C.
• Positive human immunodeficiency virus (HIV) test.
• Subject has had a serious bacterial infection (SBI) within the last 3 months.
• Subject has an active infection and is receiving antibiotic therapy for the treatment of this infection at the time of Screening. Note: if the subject is deemed a Screen Failure due to a nonserious active infection requiring antibiotic therapy, the subject may be rescreened 3 or 4 weeks (depending on drug administration schedule) after the initial screening.
• Subject has a history of thrombotic events (including deep vein thrombosis, myocardial infarction, cerebrovascular accident and pulmonary embolism) within 6 months before 1st IGIV dose or has preexisting risk factors for thrombotic events.
• Acquired medical condition known to cause secondary immune deficiency such as chronic lymphacitic leukemia, lymphoma or multiple lymphoma.
• Subjects with protein-losing enteropathies, hypoalbuminaemia.
• Females taking oral contraceptives.
• Pregnancy or unreliable contraceptive measures or lactation period (females of childbearing potential (female capable of becoming pregnant) only. Males capable of reproduction must agree to a double barrier method of contraception during their study participation.