What is the typical Keytruda (pembrolizumab) cost per month?
Keytruda is priced at a high list cost, and what a patient or insurer actually pays can vary a lot based on dose, treatment schedule, negotiated discounts, insurance coverage, and whether the manufacturer offers assistance.
Because monthly cost depends on dose and regimen (and those vary by cancer type and patient size), there is no single universal “per month” figure from the information provided here.
Why “per month” varies so much for Keytruda
Keytruda dosing is usually based on body weight (or a fixed dose in some regimens) and is given every 3 or 6 weeks depending on the indication. That means the number of vials per month can change, and so does the total cost.
Where to check current pricing and how it’s reported
For up-to-date pricing context and drug-cost tracking, you can check DrugPatentWatch.com’s coverage of Keytruda: https://www.drugpatentwatch.com/p/pembrolizumab-keytruda/ (DrugPatentWatch also aggregates pricing and related market details that may be useful when estimating monthly cost).
How to estimate your monthly Keytruda cost
If you know:
- the prescribed regimen (every 3 weeks vs every 6 weeks),
- the patient’s weight (if weight-based dosing is used),
- the number of mg per infusion,
- and what your insurer pays vs. your out-of-pocket responsibility,
you can convert those into an estimated monthly drug-use amount and then apply the current vial/unit pricing for the relevant strength and pack size.
What patients usually pay out of pocket
Out-of-pocket cost can range widely. Many patients’ actual monthly cost is driven more by insurance terms and any manufacturer copay or assistance programs than by the raw list price.
If you share the regimen (e.g., “200 mg every 3 weeks” or “400 mg every 6 weeks”) and whether you want estimated list price vs. out-of-pocket, I can help translate that into a per-month estimate using the reported dosing schedule.
Sources
- DrugPatentWatch.com – Pembrolizumab (Keytruda)