Pharma Patent Cliffby readouts.io
Loss of exclusivity · Immunology

Stelara patent expiration

When does Stelara go off patent?

It already has. Stelara is sold by Johnson & Johnson. US biosimilars from Jan 2025. Sales were $10.4B in 2024, before entry.

What the date means

Stelara's US exclusivity date is based on biosimilars launched. US biosimilars have already launched, so the loss of exclusivity is under way. It is a biologic, so copies are biosimilars. Biosimilars are harder to make and usually erode sales more gradually than generics.

Patents and sales historyPatent and exclusivity dates, sales by year

Stelara patents and exclusivity

Patent or protectionCoversExpiry
FDA 12-year biologic exclusivity (ended)Counted from approval on 25 September 200925 September 2021
Last US composition-of-matter patent (expired)Ustekinumab, per J&J2023
Settlements with biosimilar makersNo US biosimilar launch before this date1 January 2025
Europe (expired)Composition patent with its SPC, per J&J2024

J&J's last US composition-of-matter patent on ustekinumab expired in 2023, but settlements with biosimilar makers kept them off the US market until 1 January 2025. Amgen's Wezlana launched first that month, and the FDA has approved eight Stelara biosimilars. In Europe the last composition patent, extended by an SPC, expired in 2024. Stelara's worldwide sales fell 41% in 2025.

Sources: J&J 10-K 2023 · FDA Purple Book · Center for Biosimilars: first launch

Stelara sales by year

YearWorldwideUSGrowth
2023$10.86B$6.97B–
2024$10.36B$6.72B-5%
2025$6.08B$3.85B-41%

Worldwide net sales as reported, with the US share. Source: J&J 10-K 2025

Who's lined up to copy Stelara

Copies on the US market The FDA has approved 8 biosimilars. Amgen's Wezlana launched first, in January 2025, and Stelara sales fell 41% that year.

First-interchangeable exclusivity: Amgen's Wezlana was the first interchangeable biosimilar; its exclusivity as the only interchangeable ended 30 Apr 2025. FDA Purple Book (Sep 2026)

Company (product)Stage
Amgen (Wezlana)FDA-approved 31 Oct 2023; launched Jan 2025; interchangeable; first interchangeable biosimilar; its exclusivity as the only interchangeable ended 30 Apr 2025. First Stelara biosimilar on the US market
Alvotech / Teva (Selarsdi)FDA-approved 16 Apr 2024; launched 21 Feb 2025; interchangeable
Samsung Bioepis / Sandoz (Pyzchiva)FDA-approved 28 Jun 2024; launched Feb 2025; interchangeable
Fresenius Kabi (Otulfi)FDA-approved 27 Sep 2024; launched 3 Mar 2025; interchangeable
Accord BioPharma (Imuldosa)FDA-approved 10 Oct 2024; launched 18 Aug 2025; interchangeable
Biocon Biologics (Yesintek)FDA-approved 29 Nov 2024; launched 24 Feb 2025; interchangeable
Celltrion (Steqeyma)FDA-approved 17 Dec 2024; launched Mar 2025; interchangeable
Bio-Thera / Hikma (Starjemza)FDA-approved 22 May 2025; launched 6 Nov 2025; interchangeable

Approval dates are from the FDA's own lists. A maker shows as launched only when its own release or filing confirms it; FDA-approved means a launch is not confirmed, not that the copy is off the market. Checked October 2026. Sources: FDA Purple Book · Center for Biosimilars: first launch · FDA Purple Book (Sep 2026) · Teva and Alvotech: Selarsdi launch · Samsung Bioepis: Pyzchiva US launch · Fresenius Kabi: Otulfi US availability · Accord BioPharma: Imuldosa launch · Biocon Biologics: Yesintek US launch · Celltrion: Steqeyma US launch · Hikma: Starjemza launch

How the launch is going

In Q2 2026, US sales were $336M, 20% of the $1,699M in Q4 2024, the last full quarter before copies.

Before copiesCopies on the US market
Stelara Q4 2024: $1,699M US (last full quarter before copies)$1,699Q4 '24Stelara Q1 2025: $981M USQ1 '25Stelara Q2 2025: $1,078M USQ2 '25Stelara Q3 2025: $1,022M USQ3 '25Stelara Q4 2025: $766M USQ4 '25Stelara Q1 2026: $220M USQ1 '26Stelara Q2 2026: $336M US$336Q2 '26

Amgen's Wezlana launched first; most of the other approved biosimilars followed during 2025.

Quarterly US sales
QuarterUS salesvs Q4 2024
Q4 2024$1,699M100%
Q1 2025 · copies launch$981M58%
Q2 2025$1,078M63%
Q3 2025$1,022M60%
Q4 2025$766M45%
Q1 2026$220M13%
Q2 2026$336M20%

Compare with the other launches →

What past cliffs suggest

Among past biologics facing biosimilars, US sales in the first full year after copies arrived were a median 65% of the last full year before (range 34% to 93%, 7 drugs), and 27% by the third year (9 drugs). Biosimilars usually take share more gradually than generics. Every drug is different: settlements, how many copies launch, and pricing all change the curve. See the erosion benchmarks →

Medicare price negotiation

Stelara was selected for the Medicare Drug Price Negotiation Program. Its negotiated Medicare price takes effect in 2026, 66% below its list price. CMS removed Stelara from the program from 1 January 2027 after US biosimilars reached the market, so the negotiated price applies in 2026 only. US biosimilars had already launched by then. The discount is measured against list price, before the rebates drugmakers already pay, and applies to Medicare only, so the revenue impact is smaller than the headline number. See every negotiated Medicare price →

What's at stake for Johnson & Johnson

Stelara is 6.5% of Johnson & Johnson's 2025 revenue ($6.1B of $94.2B). With Xarelto, Simponi, Opsumit, Darzalex, Tremfya, Invega Sustenna, Imbruvica and Erleada, the drugs tracked here add up to 46% of Johnson & Johnson's revenue losing US exclusivity by 2033. Total includes MedTech.

Bars show each company's tracked drugs as a share of its total 2025 revenue. Stelara is highlighted.

Coming up for Stelara

1 January 2027

Medicare negotiated prices for Stelara, Entresto and Xarelto stop applying

CMS removes them from the program after generics or biosimilars reached the market; their prices applied in 2026 only.

See every upcoming date on the patent cliff calendar →

What changed for Stelara

  1. Medicare price
    Stelara, Entresto and Xarelto leave Medicare negotiation in 2027

    CMS found generics or biosimilars on sale, so their negotiated prices apply through 31 December 2026 only. CMS

  2. US copies launched
    First US biosimilars of Stelara launched

    Amgen's Wezlana launched in January 2025, and several more biosimilars followed during the year. Stelara sales fell 41% in 2025. Center for Biosimilars

  3. Medicare price
    First Medicare prices set, including Eliquis, Farxiga, Entresto, Enbrel and Stelara

    From 2026: Farxiga 68%, Enbrel 67%, Stelara 66%, Eliquis 56% and Entresto 53% below list price. CMS