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Ginny Crisp's avatar

Michael, this is exactly the post I was waiting for, and the rebate mechanism you describe is the same fiction that has been operating in commercial pharmacy contracts for years. List price stays sticky. The rebate flows post-payment to the government, the plan sponsor, or somewhere in the manufacturer-PBM economy. Member cost-sharing at the pharmacy counter is calculated on list price all the way through. The patient experience does not change.

That is the structural reason ASP is going to be impacted whatever CMS says about it. ASP is calculated on a net basis, and once the actual transaction price drops materially, the calculation has to follow eventually. The pretense that a "post-payment rebate" leaves ASP untouched only holds in a system where rebates are also private and untracked, which is the system MFN is supposedly fixing.

On TrumpRx, your read is right and the plan sponsor angle deserves naming. If a commercial plan member can buy Ozempic for $200 cash on TrumpRx while their plan's pharmacy benefit charges them list-price-based cost-sharing, the member rationally bypasses the benefit. That breaks the plan's claim data, breaks the plan's rebate capture (no claim, no rebate), and breaks any utilization management the plan layered on. The Every Dollar Counts Act would then count that DTC purchase toward the member's deductible, which gives plans more reason to tighten formulary management on the same drugs. The structure pushes risk to the plan and choice away from it.

Looking forward to part three on HHS.

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