Pharmacy Specialty Pharmacy and Biologics

Question 1

A biologic medication differs from a small-molecule drug primarily because it is:

Accepted Answer

A large, complex molecule derived from living cells that is difficult to replicate exactly

Answer

Biologics (e.g., monoclonal antibodies, insulin analogs) are large, complex molecules produced from living organisms. Their complexity means even minor manufacturing changes can affect efficacy and immunogenicity.

Question 2

A biosimilar is approved under the FDA's Biologics Price Competition and Innovation Act (BPCIA) by demonstrating:

Accepted Answer

No clinically meaningful differences in safety, purity, and potency from the reference product

Answer

Biosimilars must demonstrate no clinically meaningful differences from the reference biologic in safety, purity, and potency. They cannot be 'identical' due to biological variability — hence 'biosimilar,' not 'biogeneric.'

Question 3

TNF-alpha inhibitors (e.g., adalimumab/Humira) are used in specialty pharmacy for conditions such as:

Accepted Answer

Rheumatoid arthritis, Crohn's disease, and psoriasis

Answer

TNF-alpha inhibitors block tumor necrosis factor-alpha, a key inflammatory cytokine. They are used for autoimmune conditions including RA, psoriatic arthritis, ankylosing spondylitis, Crohn's disease, and ulcerative colitis.

Question 4

Before initiating a TNF-alpha inhibitor, patients should be screened for:

Accepted Answer

Latent tuberculosis (TB)

Answer

TNF-alpha inhibitors suppress the immune system and can reactivate latent tuberculosis. A tuberculin skin test (TST) or IGRA and chest X-ray are required before starting therapy.

Question 5

Which storage requirement is typical for most biologic medications?

Accepted Answer

Refrigeration at 2–8°C; many cannot be frozen

Answer

Most biologic drugs require refrigeration at 2–8°C. Freezing can disrupt the complex protein structure, leading to aggregation, loss of potency, or increased immunogenicity.

Pharmacy Practice Test

Pharmacy Practice Test

Pharmacy Specialty Pharmacy and Biologics