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Why Plegridy Costs $6,161.00 Per Claim
Plegridy (Peginterferon Beta-1a) is used to treat multiple sclerosis. According to CMS Medicare Part D spending data, the program spent $345.0M on this drug, covering 5,400 beneficiaries across 56,000 claims.
A generic version of this drug is available, which means lower-cost alternatives exist. Patients should ask their pharmacist about generic Peginterferon Beta-1a or talk to their doctor about therapeutic alternatives that may cost less.
Price Breakdown
Drug Details
Frequently Asked Questions
Plegridy (Peginterferon Beta-1a) costs an average of $6,161.00 per claim based on Medicare Part D data. The estimated annual cost per patient is $63,889.00. Actual out-of-pocket costs depend on your insurance plan and pharmacy.
Plegridy averages $6,161.00 per Medicare Part D claim — roughly equivalent to a 30-day supply for most patients on standard dosing. Without insurance, expect higher cash-pay prices unless you use a discount program (GoodRx, SingleCare, manufacturer copay assistance). With Medicare or commercial insurance, your out-of-pocket cost depends on your plan's formulary tier and deductible status.
A typical 30-day supply of Plegridy reflects in our Medicare Part D average of $6,161.00 per claim. Switching to generic Peginterferon Beta-1a typically reduces cost by 80-95%. Cash-pay prices vary by pharmacy — comparison shopping (or using GoodRx coupons) often saves 20-50% off the listed price.
Most commercial insurance plans and Medicare Part D plans cover Plegridy, but coverage varies by formulary tier. Insurers typically prefer generic Peginterferon Beta-1a (Tier 1, lowest copay) over brand-name Plegridy (Tier 2-3, higher copay). Some plans require prior authorization or step therapy. Check your plan's formulary or call the number on your insurance card to confirm.
Several options for cash-pay patients: (1) Manufacturer patient assistance programs — the manufacturer may offer copay cards or free-drug programs for income-qualified patients; (2) Discount programs like GoodRx, SingleCare, or RxSaver typically save 20-80% off the cash price; (3) Mark Cuban's Cost Plus Drugs offers transparent generic pricing if a generic is available; (4) 340B-eligible community health centers offer drugs at federally negotiated discounts. Switching to generic Peginterferon Beta-1a is the single biggest cost reducer if your prescriber is open to it.
Brand-name Plegridy costs more than generic Peginterferon Beta-1a primarily for marketing reasons — patients can request the brand from their doctor even when a chemically identical generic exists. The active ingredient and clinical effect are the same.
Yes, a generic version of Plegridy (Peginterferon Beta-1a) is available. Generic medications typically cost 80-95% less than brand-name drugs. Ask your pharmacist about generic Peginterferon Beta-1a.
Medicare Part D spent $345.0M on Plegridy, covering 5,400 beneficiaries across 56,000 claims. This makes it one of the tracked drugs in the Medicare spending dashboard.
Ask your pharmacist about generic Peginterferon Beta-1a, which is typically much cheaper. You can also compare prices at different pharmacies, use prescription discount programs (GoodRx, SingleCare, Cost Plus Drugs), or ask your doctor about therapeutic alternatives in the same drug class.
Reading Plegridy's Medicare Pricing
At $6,161.00 per Medicare Part D claim, Plegridy sits in specialty-drug territory — the price band occupied by biologics, injectables, and narrow-population treatments rather than everyday maintenance pills. Costs at this level usually trace to complex manufacturing, a patient population too small to spread fixed R&D across millions of scripts, or a class with no generic or biosimilar competition yet. For a drug treating multiple sclerosis, that price is the single biggest lever on out-of-pocket exposure, which is why coverage tier and assistance eligibility matter far more here than for a commodity generic.
Plegridy accounts for $345.0M in Medicare Part D spending — a large line item built from 56,000 claims across 5,400 beneficiaries. Whether that total is driven more by price or by volume is the useful question: a high $6,161.00 average claim cost means price is the lever, a modest one means utilization is. Either way, a drug at this spending level is firmly on plan formulary committees' radar.
Because a generic version of Peginterferon Beta-1a is on the market, the realistic savings path for Plegridy is straightforward: the generic is therapeutically equivalent and typically costs a fraction of the brand. The friction is usually prescribing habit rather than availability — patients can ask the prescriber to write for the generic, and most plans already steer to it with a lower copay tier. That single switch usually beats coupons, assistance programs, and pharmacy shopping combined.
Every figure here comes from the CMS Medicare Part D Drug Spending dashboard, which reports what the program paid — not the cash price at a retail pharmacy and not a patient's out-of-pocket cost. List prices also overstate the real economics: manufacturers pay confidential rebates to pharmacy benefit managers, so the net price plans actually pay is often well below the sticker. Treat $6,161.00 as a consistent Medicare-program benchmark for Plegridy, useful for comparing drugs on the same basis, rather than the price any one patient will see at the counter.
Related
Cost data reflects Medicare Part D spending and may not represent retail pharmacy prices. Average cost per claim represents the total drug cost (not patient out-of-pocket) divided by total claims.