Chemotherapy Biotherapy Certification ONS Practice Testq

Which of the following therapies is classified as passive immunotherapy?

1. G-CSF therapy

2. Peptibody protein therapy

3. Monoclonal antibody therapy

4. Erythropoietin therapy

The correct answer is: Monoclonal antibody therapy

Passive immunotherapy involves the administration of pre-formed antibodies that can provide immediate immune protection against cancer cells without the need for the patient's immune system to mount a response. Monoclonal antibody therapy fits this definition, as it utilizes antibodies engineered to target specific antigens on cancer cells, facilitating their destruction by the immune system or by direct inhibition of cell growth. The other therapies mentioned do not fall under the category of passive immunotherapy. G-CSF (Granulocyte Colony-Stimulating Factor) therapy stimulates the production of neutrophils in the bone marrow, enhancing the body’s own immune response. Peptibody protein therapy involves the use of engineered proteins that can elicit an immune response but do not directly provide pre-formed antibodies. Erythropoietin therapy is focused on stimulating the production of red blood cells and does not involve immunotherapy for cancer treatment. Thus, monoclonal antibody therapy is the only option that accurately represents passive immunotherapy.