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SURVEY _
May 26, 2021

Patent Thickets

How it Could Work

The Affordable Prescriptions for Patients Act of 2019 (S. 1416) aims to lower prescription drug costs by limiting anticompetitive behavior from large brand name drug manufacturers. The bill includes proposals to prevent manufacturers from using two well-known gaming tactics: (1) product hopping, through both hard and soft switches; and (2) biologic product patent thickets. The expert opinions below focus only on Sec. 3 of S.1416, which aims to prevent patent thickets for biologic products.

Patent thickets occur when large manufacturers apply for additional patents for the sole reason of extending their period of exclusivity rather than to protect new innovation. Section 3 of the Affordable Prescriptions for Patients Act of 2019 aims to prevent patent thickets by imposing a 20-patent maximum to original reference biologic products. Manufacturers often apply for dozens of patents to extend their monopoly, but this proposed 20-patent limit would restricts patents filed on the actual product, the delivery method, and the manufacturing method, all of which cause biosimilars to be kept off market unnecessarily. Biologic manufacturers may fight the maximum limit in court on a case-by-case basis if they can prove that the additional patents cover a characteristic of the product that has been changed since the initial filing and was not filed solely to prevent the entry of biosimilar competition.

What Experts Think

The expert panel agreed that this policy would reduce drug spending but were split on if it would be a minimal or moderate reduction. Nearly all experts believe this policy would not affect drug list prices, but they unanimously agreed that it would moderately decrease net prices. The experts agreed that this policy would moderately increase drug access for all patient groups, except Medicaid beneficiaries who would see no change.

The majority of the panel agreed that this policy would moderately advance drug spending policy. Experts unanimously agreed the likelihood of this policy being effectively implemented would be a weakness; however, the size of the affected population and the precedent-setting value would be strengths. It is still unknown if the magnitude of the impact the policy would have and the evidence in support of the policy are strengths or weaknesses.

How likely would this policy be to reduce drug spending?
Would Increase Drug Spending
Would Not Affect Drug Spending
Would Minimally Reduce Drug Spending
Would Moderately Reduce Drug Spending
Would Significantly Reduce Drug Spending
Would Substantially Reduce Drug Spending
How likely would this policy be to reduce drug prices?
Would Significantly Increase Drug Prices
Would Moderately Increase Drug Prices
Would Not Affect Drug Prices
Would Moderately Decrease Drug Prices
Would Significantly Decrease Drug Prices
List Prices
Net Prices
How likely would this policy be to reduce drug prices?
Would Significantly Reduce Drug Access
Would Moderately Reduce Drug Access
Would Not Affect Drug Access
Would Moderately Increase Drug Access
Would Significantly Increase Drug Access
Medicare
Medicaid
Privately-Insured
Uninsured
Rare Disease
Large Patient Groups
How significant is this policy in the evolution of US drug spending policy?
Does Not Advance Drug Spending Policy
Minimally Advances Drug Spending Policy
Moderately Advances Drug Spending Policy
Significantly Advances Drug Spending Policy
Ground-Breaking Shift in Drug Spending Policy
What are the strengths and weaknesses of this policy?
Weakness
Unknown
Strength
Implementability
Size of Affected Population
Evidence Base in Support of Policy
Precedent-Setting Value
Magnitude of Drug Spending Impact
What are the information gaps that affect your analysis of the policy’s impact?
Not Important
A Little Important
Somewhat Important
Very Important
Possible unintended impact could undermine competition in the biosimilar market
Possible impact on future innovation
The policy does not help biosimilar manufacturers to identify the relevant patents in advance
Company responses regarding things like secrecy
20 patents (proposed maximum allowed) would still delay biosimilar competition
Does not address the strength and breadth of each individual patent of a patent thicket
The policy only addresses patents, but manufacturers may still seek other market protections in order to hinder competition
Unclear that this is consistent with international intellectual property treaties to which the US is a party

Considerations for Policymakers

Experts highlight many considerations for policymakers. Key considerations that the experts highlighted were that the policy does not address the strength and breadth of each individual patent that create the patent thickets and that 20 patents, the proposed maximum number of patents allowed, would still delay competition. Additional concerns that experts had were that this policy only addresses patents, but manufacturers would still be able to delay competition through other nefarious tactics and it is unclear if this policy is consistent with international intellectual property treaties. Policymakers should also consider how the large brand manufacturers will respond to this policy, particularly regarding secrecy. Finally, experts highlighted that this policy could actually undermine competition in the biosimilar market and negatively impact future innovation.