Drug Guide
Certolizumab Pegol
Classification
Therapeutic: Immunosuppressant, Tumor Necrosis Factor (TNF) Inhibitor
Pharmacological: Monoclonal antibody (TNF inhibitor)
FDA Approved Indications
- Crohn's Disease
- Rheumatoid Arthritis
- Psoriatic Arthritis
- Ankylosing Spondylitis
- Uveitis
Mechanism of Action
Certolizumab Pegol binds to tumor necrosis factor-alpha (TNF-α), neutralizing its activity and thereby reducing inflammation.
Dosage and Administration
Adult: Typically 200 mg subcutaneously every 2 or 4 weeks, based on condition and response.
Pediatric: Use in pediatric patients is limited; dosing and safety should be determined by a specialist.
Geriatric: Adjust dose based on individual tolerance and response, no specific contraindication but monitor for infections.
Renal Impairment: No specific dosage adjustment needed; caution advised due to immunosuppression.
Hepatic Impairment: No specific adjustment needed.
Pharmacokinetics
Absorption: Subcutaneous absorption with a bioavailability of approximately 80%.
Distribution: Widespread distribution; primarily remains within vascular and interstitial spaces.
Metabolism: Metabolized via proteolytic pathways typical of IgG antibodies.
Excretion: Primarily via catabolism; not eliminated unchanged in urine or feces.
Half Life: Approximately 14 days.
Contraindications
- Hypersensitivity to certolizumab pegol or excipients.
- Active infections, including tuberculosis.
Precautions
- Monitor for signs of infection.
- Screen for latent TB prior to therapy.
- Use with caution in patients with demyelinating diseases, heart failure, or history of cancer.
Adverse Reactions - Common
- Infections (upper respiratory, urinary tract infections) (Common)
- Headache (Common)
- Nausea (Common)
Adverse Reactions - Serious
- Serious infections (including opportunistic infections) (Less common, but serious)
- Lymphoma and other malignancies (Rare)
- Demyelinating disease episodes (Rare)
- Liver enzyme elevations (Uncommon)
Drug-Drug Interactions
- Other immunosuppressants, live vaccines, agents that increase risk of infection.
Drug-Food Interactions
N/ADrug-Herb Interactions
N/ANursing Implications
Assessment: Monitor for signs of infection, tuberculosis reactivation, and hypersensitivity reactions.
Diagnoses:
- Risk for infection
- Impaired skin integrity
Implementation: Administer via subcutaneous injection, monitor injection site, educate patient about infection risks.
Evaluation: Assess for effectiveness, adverse effects, and any signs of infection or adverse reactions.
Patient/Family Teaching
- Instruct on importance of regular health monitoring.
- Advise to report signs of infection or allergic reactions immediately.
- Discuss the importance of adherence to dosing schedule.
- Educate about potential side effects and when to seek medical attention.
Special Considerations
Black Box Warnings:
- Increased risk of serious infections, including tuberculosis, bacterial, invasive fungal, and viral infections.
- Risk of lymphoma and other malignancies.
Genetic Factors: No specific genetic factors reported affecting drug efficacy or safety.
Lab Test Interference: May cause falsely decreased tuberculin skin test responses.
Overdose Management
Signs/Symptoms: Symptoms not well established; monitor for signs of infection or immunosuppression.
Treatment: Supportive care; consider hospitalization for management of infections or adverse effects.
Storage and Handling
Storage: Store in the original container at 2°C to 8°C (36°F to 46°F). Do not freeze.
Stability: Stable until expiry date when stored properly. May be kept at room temperature up to 25°C (77°F) for a maximum of 14 days if necessary.