Lowering Costs for Patients: The Health of the Biosimilar Market

Health Care Costs and Drug PricingHouse Ways and Means Subcommittee on Health · 2025-04-08 · 119th Congress
The House Ways and Means Subcommittee on Health held this hearing to examine why biosimilar competition for biologic drugs remains limited despite the potential for large cost savings, and what policy changes could remove barriers to their development and use. Begins at 0:14:23
Transcript
Highlights

Title

Biosimilar market barriers: PBM rebates, 340B, and FDA/NIH funding cuts

Purpose

The House Ways and Means Subcommittee on Health held this hearing to examine why biosimilar competition for biologic drugs remains limited despite the potential for large cost savings, and what policy changes could remove barriers to their development and use. Witnesses from oncology, rheumatology, the biosimilars industry, and academic medicine testified on pharmacy benefit manager (PBM) rebate practices, the 340B drug pricing program, Medicare Part B reimbursement, and the effects of the Inflation Reduction Act (IRA) on biosimilar investment; Democratic members also used the hearing to raise concerns about Trump administration cuts to NIH and FDA staffing and funding. Begins at0:14:23

Who spoke

Chairman Vern Buchanan (R-FL)0:14:23: Opened by noting 90% of the $4.5 trillion in annual US health spending ties to chronic disease0:14:38, that biosimilars have saved $23.6 billion since 20150:15:52, and that further adoption could save $181 billion over five years0:16:50; later led a "food is medicine" discussion citing rising childhood obesity and diabetes rates1:21:37.

Rep. Lloyd Doggett (D-TX), Ranking Member0:17:34: Criticized Trump administration cuts to NIH and FDA staffing as "settling old scores"0:18:23, noted every new drug 2010–2019 had some taxpayer funding0:20:17, and pressed Dr. Kesselheim on the value of publicly funded basic research and objections to further carve-outs from Medicare drug negotiation0:49:340:52:39.

Dr. Debra Patt, Community Oncology Alliance0:24:01: Said PBMs use rebates to steer physicians toward the most profitable rather than most effective drugs0:25:48 and that 340B hospitals are incentivized to use costlier originator biologics0:26:40; recommended raising biosimilar reimbursement to ASP+10% and removing sequester cuts0:28:06.

Dr. Colin Edgerton, Articularis Healthcare Group0:28:59: Explained that manufacturer rebates can push biosimilar reimbursement below acquisition cost, an "underwater" problem that blocks patient access0:31:03; proposed an 8% add-on to acquisition cost and removing rebates from the ASP formula0:32:42.

Craig Burton, Biosimilars Council0:33:40: Cited an IQVIA finding that only 12 of 118 biologics losing patent protection over the next decade have biosimilars in development0:34:35, and that Humira biosimilars, despite prices up to 87% lower, hold only ~20% market share0:36:15; later detailed how the IRA's negotiated-price guarantee can still require Medicare plans to cover brand biologics over cheaper biosimilars2:11:13.

Dr. Aaron Kesselheim, Harvard Medical School0:38:44: Warned that NIH funding pace has fallen by more than half since inauguration and indirect research funding cuts of nearly $4 billion/year threaten drug innovation0:39:10; recommended FDA authority to designate biosimilars interchangeable without switching studies and USPTO reforms to curb patent thickets0:41:400:42:36.

Rep. Smith (R)0:43:57: Asked about patient and provider awareness of the 73 FDA-approved biosimilars, noting many rural patients lack access0:45:34.

Rep. Kelly (R)0:54:06: Cited that 860,000 Medicare diabetes patients rely on biologics and asked about disincentives to biosimilar insulin development, noting only 30–40% of biosimilar insulin prescriptions were actually filled due to PBM claim-blocking0:55:32.

Dr. Murphy (R)0:56:31: Blamed NIH funding delays on the prior acting director0:56:49, noted Harvard's $52 billion endowment0:57:16, and cited industry figures that the IRA has led to 49 discontinued research programs and 24 canceled drugs, with 70% of small-molecule funding lost0:57:380:58:00.

Rep. Thompson (D)0:59:45: Entered into the record reporting on proposed pharmaceutical tariffs and NIH cuts1:00:221:00:50, and asked Dr. Kesselheim how Medicaid cuts would affect access to biosimilars1:03:04.

A committee member (Democratic)1:10:42: Described a constituent researcher's NIH grant review being abruptly canceled1:12:02 and the firing of roughly 3,500 FDA employees1:13:56, asking Dr. Kesselheim about impacts on biosimilar approval and access.

Rep. Hearn (R)1:16:00: Said biosimilars have driven a 25% average decrease in biologic prices since 20151:16:54 and asked Craig Burton how Medicare price-setting under the IRA affects biosimilar investment predictability1:17:56.

A committee member (Philadelphia-area)1:27:47: Asked witnesses about specific Trump administration actions weakening drug research in Philadelphia, including reduced NIH funding and shuttered Alzheimer's research centers1:28:09.

Rep. Miller (R-WV)1:32:12: Noted 1.2 million West Virginians live with a chronic disease in a state of 1.7 million1:32:42 and asked Dr. Patt and Dr. Edgerton how physician and patient awareness affects biosimilar uptake1:33:02.

Rep. Fitzpatrick (R)1:37:56: Asked Dr. Patt about patient concerns switching to biosimilars in oncology1:38:27 and asked Craig Burton how Medicare Part B could better incentivize biosimilar use1:39:53.

Rep. Davis (D)1:42:02: Criticized Republicans for downplaying FDA and NIH cuts, citing $240.7 million in threatened NIH funding losses in Illinois1:45:06, and asked Dr. Kesselheim whether private industry could replace that funding1:46:05.

Rep. Tenney (R-NY)1:47:16: Noted 235,000 Medicare seniors (30% of her district) could benefit from biosimilars1:47:45 and asked Craig Burton why PBMs haven't adopted lower-cost biosimilars faster1:49:04.

Rep. Moore (R)1:53:17: Asked Dr. Edgerton about patient concerns beyond price, such as switching between multiple biosimilars1:54:32, and asked Craig Burton about roadblocks to biosimilar development in Utah1:55:37.

Rep. Sanchez (D)1:57:26: Cited a 35% ($2.6 billion) proposed NIH cut and a 256% economic return on NIH investment1:57:52, and linked FDA vaccine-office leadership departures to stock drops in biotech firms1:59:15.

Rep. Kustoff (R)2:03:17: Asked Craig Burton what FDA reforms — such as reducing phase 3 clinical efficacy study requirements — would most help biosimilar development2:04:08, and about patent thickets exemplified by Humira's 100+ patents2:05:55.

Rep. Steube (R)2:08:03: Cited $3.1 trillion in savings from generics and biosimilars over 10 years2:08:32 and asked Dr. Patt and Dr. Edgerton how Medicare Part B reimbursement discourages biosimilar use even when PBMs prefer them2:10:06.

Rep. Horsford (D)2:13:07: Detailed IRA provisions capping insulin at $35/month and out-of-pocket drug costs at $2,000/year2:13:552:14:22, and asked Dr. Kesselheim how Medicaid/ACA cuts could affect the biosimilar market2:17:36.

Rep. Beyer (D)2:19:24: Cited a 34% drop in cancer mortality and two-thirds drop in HIV infections attributable to NIH-funded research2:20:22, and pressed Dr. Kesselheim on the rationale for cutting NIH grants and FDA staff2:21:22.

Key moments

Craig Burton testified that only 12 of 118 biologics losing patent protection in the next decade — a $234 billion market — have biosimilars currently in development0:34:35.

Dr. Edgerton and Dr. Patt both described an "underwater" reimbursement problem, where PBM-extracted rebates push biosimilar acquisition costs above what providers are reimbursed, discouraging their use even when preferred on formularies0:31:031:36:06.

Burton said Humira biosimilars, priced up to 87% below the brand, still hold only about 20% market share after PBMs largely declined to cover them for rebate reasons0:36:151:07:07.

Dr. Kesselheim testified NIH funding pace has fallen by more than half since inauguration and that indirect research funding is being cut by nearly $4 billion a year0:39:100:39:33.

Dr. Murphy and Dr. Kesselheim sparred over the IRA's effects: Murphy cited industry data of 49 canceled research programs and 24 discontinued drugs since the law passed0:57:38, while Kesselheim argued excluding more drugs from negotiation "doesn't make any sense" and only shields already-profitable drugs0:52:14.

Burton explained that under the IRA, once a brand biologic undergoes price negotiation (e.g., Stellara at -66%), Medicare plans are statutorily required to cover the brand even as biosimilars enter at steeper discounts (-80% or more), potentially protecting the very monopolies the law targeted2:11:132:12:07.

Rep. Kelly noted only 30–40% of prescriptions written for biosimilar insulin were actually filled as biosimilars because PBMs redirected claims to the branded product0:55:32.

Rep. Sanchez cited a Bio trade association statement that the departure of FDA vaccine official Dr. Peter Marks caused immediate stock drops at Novavax (-6%), Sarepta (-10%), and Moderna1:59:15.

Dr. Patt said 340B hospitals reimbursed at up to 600% of ASP have financial incentive to use costlier originator biologics over cheaper biosimilars, calling the program a mechanism that "picks winners and losers"1:06:22.

Burton stated biosimilar development costs up to $300 million and that without market predictability regarding negotiated pricing under the IRA, companies "simply are not going to be able to risk the investment"0:35:211:18:53.

Metadata

CommitteeHouse Ways and Means Subcommittee on Health
Chamber / CongressHouse · 119th Congress
Date2025-04-08
TypeHearing
Witnesses
Dr. Debra Patt — President, Community Oncology Alliance
Dr. Colin Edgerton — Director, Articularis Healthcare Group
Craig Burton — Executive Director, Biosimilars Council
Dr. Aaron Kesselheim — Professor of Medicine, Harvard University
Videoyoutube
Transcript304 caption blocks · 21,189 words · 2:25:18 runtime
EventCongress.gov 118120