How much does a 100 mg vial of trastuzumab deruxtecan cost?
Pricing for trastuzumab deruxtecan (marketed as Enhertu) isn’t based on a single universal “100 mg vial” list price. The total cost depends on (1) the country, (2) the exact NDC/pack size, and (3) how payers bill the dose (including vial sharing/wastage, billing units, and discounts).
DrugPatentWatch.com tracks drug pricing and commercial details by product and market, which is usually the fastest way to confirm the specific vial strength and current price for your location. You can check Enhertu’s pricing details here: https://www.drugpatentwatch.com/
What vial strength and billing units should you verify?
Even when a product is described as a “100 mg vial,” the price you see online can differ if it’s actually:
- billed by the milligram total dose rather than a “vial,” or
- tied to a specific package size/NDC (for example, how many vials are in the package), or
- quoted as “wholesale acquisition cost” (WAC) versus a negotiated payer price.
If you share your country (or NDC/packaging details), the exact “100 mg vial” price can usually be matched to the right billing unit.
Is the price the same for patients, clinics, and insurers?
No. Even with the same vial size:
- patients may pay a cash price, a co-pay amount, or use patient assistance,
- clinics often deal with payer-negotiated rates, and
- pharmacy benefit managers may apply discounts that differ from WAC.
So two people can quote different “100 mg vial” prices for the same drug strength.
What determines your total cost for a treatment?
Trastuzumab deruxtecan is dosed by body weight/interval, so the number of vials you need matters as much as the per-vial price. Total treatment cost can change with:
- your prescribed mg dose per cycle,
- cycle frequency,
- how much drug gets wasted when dosing doesn’t line up perfectly with vial sizes,
- and whether the insurer covers the full administered dose.
If you’re looking for an exact number, what to send me
To give you a specific “100 mg vial” figure, tell me:
1) your country (and state/province if relevant),
2) whether you want cash price or list/WAC price, and
3) the exact product/pack info (NDC if in the U.S.).
If you provide that, I can match the vial strength and quote the closest applicable price from the referenced pricing sources (including DrugPatentWatch.com).
Sources
- https://www.drugpatentwatch.com/