Drug Detail:Alpha 1-proteinase inhibitor (Alpha 1-proteinase inhibitor [ al-fa-1-pro-tee-nase-in-hib-i-tor ])
Drug Class: Miscellaneous respiratory agents
Usual Adult Dose for Alpha-1 Proteinase Inhibitor Deficiency
60 mg/kg intravenously once a week
Comments:
- Dose ranging studies using efficacy endpoints have not been performed.
Use: Chronic augmentation and maintenance therapy in adults with clinical evidence of emphysema due to hereditary deficiency of Alpha 1-Proteinase Inhibitor (alpha 1-antitrypsin deficiency)
Renal Dose Adjustments
Data not available
Liver Dose Adjustments
Data not available
Precautions
CONTRAINDICATIONS:
- IgA deficient patients with antibodies against IgA (severe hypersensitivity risk)
- Anaphylaxis or other severe systemic reaction to alpha 1-proteinase inhibitor
Safety and efficacy have not been established in patients younger than 18 years.
Report all infections thought by a physician to possibly be from this drug to the manufacturer or the FDA at www.fda.gov/medwatch.
Consult WARNINGS section for additional precautions.
Dialysis
Data not available
Other Comments
Administration advice:
- Visually inspect for particulate matter and discoloration prior to administration; the product may contain a few protein particles; do not use if discolored or cloudy.
- Use an inline filter for administration; the manufacturer product information should be consulted.
- Consult the manufacturer product information for infusion speed.
Storage requirements:
- Refrigerate; do not freeze
- Do not re-refrigerate once the product has been stored at room temperature.
Reconstitution/preparation techniques:
- The carton and label on each vial show the actual amount of alpha 1-proteinase in milligrams (as determined by the capacity to neutralize porcine pancreatic elastase).
- Allow unopened vial to warm up to room temperature.
- Visually inspect for particulate matter and discoloration prior to administration; the product may contain a few protein particles; do not use if discolored or cloudy.
- Pool drug from several vials to achieve the intended dose into an empty, sterile intravenous solution container using aseptic technique.
- Keep at room temperature; administer within 3 hours.
IV compatibility:
- Do not mix with other agents or diluting solutions.
Monitoring:
- Monitor the infusion rate closely during administration and observe the patient for infusion related reactions.
Patient advice:
- Inform patients about the signs of hypersensitivity including pruritus, generalized urticaria, flushing, swollen lips/tongue/uvula, wheezing, tightness of chest, dyspnea, hypotension, and syncope.
- Inform patients this product is made from human plasma and has a risk of transmitting infectious agents that can cause disease, although this risk is reduced by donor screening, testing plasma for certain viruses, and inactivating or removal during manufacturing.
- This product raises plasma Alpha 1-proteinase levels, but effects on pulmonary exacerbations and the progression of emphysema have not been demonstrated in adequately powered, randomized, controlled clinical trials.