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What Is Kyprolis?

Kyprolis is a prescription proteasome inhibitor containing carfilzomib. It is used in adults with relapsed or refractory multiple myeloma after prior treatment, either alone or with selected combination regimens.

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What Is Kyprolis?

Kyprolis is a prescription proteasome inhibitor containing carfilzomib. It is used in adults with relapsed or refractory multiple myeloma after prior treatment, either alone or with selected combination regimens.

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How Does Kyprolis Work?

Carfilzomib binds irreversibly to the proteolytic core of the 20S proteasome and inhibits proteasome activity. This disrupts protein breakdown inside susceptible cancer cells and can lead to cell death.

Who Is Treated With Kyprolis?

Kyprolis is used in adults with relapsed or refractory multiple myeloma who have received one to three prior treatment lines when used with selected combination regimens. It is also used alone after one or more prior treatment lines.

How Is Kyprolis Dosed?

Kyprolis is given by intravenous infusion in 28-day cycles. A common once-weekly regimen starts at 20 mg per square meter on cycle 1 day 1 and increases to 70 mg per square meter on days 8 and 15 if tolerated. Other labeled regimens use 20 mg per square meter followed by 56 mg or 27 mg per square meter twice weekly, depending on the treatment combination.

What Serious Risks Are Linked to Kyprolis?

Serious concerns include cardiac failure and ischemia, acute kidney failure, tumor lysis syndrome, pulmonary toxicity, pulmonary hypertension, severe high blood pressure, venous thrombosis, infusion reactions, hemorrhage, thrombocytopenia, liver toxicity, thrombotic microangiopathy, posterior reversible encephalopathy syndrome, and progressive multifocal leukoencephalopathy.

Frequently Asked Questions About Kyprolis

What cancer does Kyprolis treat?

Kyprolis treats relapsed or refractory multiple myeloma in adults under prior-treatment criteria.

How is Kyprolis administered?

Kyprolis is given by intravenous infusion.

Does Kyprolis use more than one dosing schedule?

Yes. Current labeling includes once-weekly and twice-weekly regimens that vary by accompanying medicines.

Why is hydration used with Kyprolis?

Hydration is used around early treatment to reduce risks associated with tumor lysis syndrome and kidney toxicity, with adjustments for patients at risk of fluid overload.

References

Carfilzomib. National Cancer Institute. https://www.cancer.gov/about-cancer/treatment/drugs/carfilzomib. Date Accessed October 8, 2026.

Carfilzomib. PubChem. https://pubchem.ncbi.nlm.nih.gov/compound/Carfilzomib. Date Accessed October 8, 2026.

Carfilzomib Injection. MedlinePlus. https://www.medlineplus.gov/druginfo/meds/a612031.html. Date Accessed October 8, 2026.

DailyMed - KYPROLIS (carfilzomib) injection, powder, lyophilized, for solution. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=ea66eb30-e665-4693-99a1-a9d3b4bbe2d6. Date Accessed October 8, 2026.

KYPROLIS (carfilzomib) Prescribing Information. Amgen. https://www.pi.amgen.com/united_states/kyprolis/kyprolis_pi.pdf. Date Accessed October 8, 2026.