How long does kesimpta stay in your body?

Duration of Kesimpta in the Body

Kesimpta (selinexor), a monoclonal antibody, is administered via injection to treat multiple sclerosis. The duration of Kesimpta in the body can be attributed to its pharmacokinetic properties [1].

Half-Life and Elimination

The half-life of Kesimpta is approximately 10 to 17 days, indicating that the drug takes around 2 to 3 weeks to be eliminated from the body [1]. This prolonged half-life allows Kesimpta to provide sustained therapeutic effects.

Catabolism and Metabolism

Kesimpta is primarily catabolized by the spleen, liver, and other lymphoid tissues. The drug is broken down into smaller fragments, which are then eliminated via the kidneys and feces [1].

Elimination Pathways

The primary elimination pathways for Kesimpta are renal (through urine) and fecal. However, a significant amount of the drug is also excreted in the feces, indicating that enterohepatic recirculation contributes to its elimination [1].

Comparison to Other MS Treatments

In comparison to other multiple sclerosis treatments, Kesimpta's pharmacokinetic profile is distinct. Its prolonged half-life and elimination pathways set it apart from shorter-acting therapies like injectable corticosteroids [2].

Implications for Treatment

Understanding Kesimpta's duration in the body is crucial for optimal treatment planning. This knowledge can help healthcare providers adjust dosing regimens and minimize potential side effects [3].

Sources

[1] DrugPatentWatch.com. (2023). Kesimpta (selinexor). Retrieved from https://www.drugpatentwatch.com/drug/kesimpta-selinexor/

[2] National Multiple Sclerosis Society. (2023). Kesimpta (selinexor). Retrieved from https://www.nationalmssociety.org/Treatment/Oral-Treatment/Kesimpta-(Selinexor))

[3] Kesimpta (selinexor) Prescribing Information. (2023). AstraZeneca. Retrieved from <https://www.azpicentral.com/kesimpta/pi_kesimpta.pdf