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Actelion v. Apotex — Selexipag Patent Consent Judgment | PatSnap
Patent Litigation

Actelion v. Apotex: Consent Judgment Blocks Generic Selexipag in 127 Days

Actelion Pharmaceuticals brought an ANDA infringement action against Apotex over generic selexipag tablets (Uptravi®), asserting two patents covering the compound and formulation. The case resolved in 127 days via a consent judgment and permanent injunction, barring Apotex from launching its generic product until patent expiry.

Resolution time
127days
127 days — resolved well within the typical ANDA 30-month stay window
Patents asserted
2
US9284280B2 and US8791122B2 — selexipag compound and formulation patents
Outcome
Consent Judgment
Agreed by the parties, entered by the court, binding and final with permanent injunction
Cost ruling
No Costs
Order expressly provides no costs, disbursements, or attorney fees to any party
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

Uptravi® Generic Blocked: How Actelion Secured a Permanent Injunction

Actelion Pharmaceuticals US, Inc. — together with Actelion Pharmaceuticals Ltd and Nippon Shinyaku Co., Ltd. as co-plaintiffs — filed suit in the Delaware District Court on December 10, 2025 against Apotex Inc. and Apotex Corp., asserting infringement of US Patent Nos. 9,284,280 and 8,791,122. The patents-in-suit relate to selexipag, the active ingredient in Uptravi®, a branded treatment for pulmonary arterial hypertension. The trigger was Apotex's ANDA No. 220457 seeking approval for generic selexipag tablets across eight dosage strengths from 200 mcg to 1600 mcg.

The recorded basis of termination is Consent Judgment. The docket order — a stipulated consent judgment and order of permanent injunction — reflects that Apotex agreed both patents are valid and enforceable, and accepted a permanent injunction prohibiting it from making, using, selling, offering to sell, or importing its ANDA products in the United States until after the expiration of both patents, including any patent term extensions, adjustments, and associated exclusivity periods. The complaint and all remaining claims, counterclaims, and affirmative defenses were dismissed without prejudice and without costs. The court retained jurisdiction to enforce the judgment.

Resolution in 127 days is notably swift for Hatch-Waxman ANDA litigation, which is routinely litigated through the full 30-month stay period. The speed and structure of the resolution — with Apotex explicitly conceding validity and enforceability — suggests the parties reached agreement before significant substantive litigation occurred. The specific commercial terms underlying the parties' agreement, beyond what is expressly stated in the court's order, are not disclosed in the available record.

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Case at a glance
DefendantApotex, Inc.
CourtDelaware District Court
JudgeGregory B. Williams
FiledDecember 10, 2025
ClosedApril 16, 2026
Duration127 days
OutcomeConsent Judgment
Verdict causeInfringement Action
BasisConsent Judgment
Prior Art Intelligence
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Case timeline

Filing to Consent Judgment in 127 days

127 days — resolved well within the typical ANDA 30-month stay window

Case timeline: Complaint filed DEC 10 2025 — 127 days total Horizontal timeline showing the three key events in Actelion Pharmaceuticals US, Inc. v Apotex, Inc. from filing to resolution. Source: PACER, Delaware District Court. DEC 10 2025 Complaint filed Pre-trial proceedings APR 16 2026 Consent Judgment 127 DAYS TOTAL
Patent at issue

US9284280B2 & US8791122B2 — Selexipag Compound and Formulation Patents

Publication No.US9284280B2
Application No.US14/160641
Patent details
Productselexipag compound and pharmaceutical compositions for pulmonary arterial hypertension
Cited in actionDecember 10, 2025

Publication No.US8791122B2
Application No.US13/379531
Patent details
Productselexipag compound, synthesis, and therapeutic use for pulmonary arterial hypertension
Cited in actionDecember 10, 2025
Technical brief · sourced from PatSnap patent database
Patent figurePatent figure
Representative claim (1 of 1 independent)
1. A method for treating diabetic neuropathy, diabetic gangrene, peripheral circulatory disturbance, chronic arterial occlusion, intermittent claudication, scleroderma, thrombosis, pulmonary hypertension, myocardial infarction, angina, glomerulonephritis, diabetic nephropathy, chronic renal failure, bronchial asthma, interstitial pneumonia (pulmonary fibrosis), chronic obstructive pulmonary disease, inflammatory bowel disease, or symptoms associated with spinal canal stenosis, comprising the step of administering, as an active ingredient to a subject, a crystal of 2-{4-[N-(5,6-diphenylpyrazin-2-yl)-N-isopropylami…
Technical background
CROSS-REFERENCE TO RELATED APPLICATIONS This patent application is a continuation of U.S. application Ser. No. 13/379,531 filed on Dec. 20, 2011, now U.S. Pat. No. 8,791,122 B2, which is a U.S. national stage entry under 35 U.S.C. §371 of International Patent Application No. PCT/JP2010/060798 filed on Jun. 25, 2010, which claims the benefit of foreign priority to Japanese Patent Application Nos. JP 2009-151727, JP 2009-151728, and JP 2009-151729 each filed on Jun. 26, 2009. The U.S. application Ser. No. 13/379,531…
Patent family
128 family members across 44 jurisdictions (AU, CN, CA, RU, HK, BR, EP, TW, KR, PL, HU, MY)
PatSnap Eureka · FTO Search Agent
Should you run an FTO against US9284280B2 and US8791122B2?

Any company developing, manufacturing, or seeking regulatory approval for generic or biosimilar selexipag products — whether through ANDA or otherwise — should treat both US9284280B2 and US8791122B2 as live enforcement risks. Apotex's concession of validity and enforceability in a court-entered judgment, combined with Actelion's demonstrated readiness to secure a permanent injunction within 127 days, signals a well-resourced and assertive enforcement posture. The multi-party plaintiff structure (Actelion entities plus Nippon Shinyaku) means an FTO analysis must address rights held across multiple parties.

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Official verdict

Official order — verbatim text

Plaintiffs Actelion Pharmaceuticals US, Inc. and Actelion Pharmaceuticals Ltd (together, "Actelion") and Nippon Shinyaku Co., Ltd. ("Nippon Shinyaku") (collectively, "Plaintiffs") and Defendants Apotex Inc. and Apotex Corp. (collectively, "Defendants" or "Apotex") (collectively, the "Parties"), by their respective undersigned attorneys, hereby stipulate and consent to entry of judgment and injunction in this action as follows: Aocl HEREBY ORDERED, ADJUDGED AND DECREED that: For purposes of this action only, this Court has jurisdiction over the subject matter of the above action and has personal jurisdiction over the Parties. As used in this Consent Judgment and Order of Permanent Injunction, (i) the term "Patents-in-Suit" means U.S. Patent Nos. 8,791,122 and 9,284,280 respectively, which Apotex agrees are both valid and enforceable, (ii) the term "Apotex's ANDA Products" means the products described in Abbreviated New Drug Application ("ANDA") No. 220457 ("Apotex's ANDA"), namely selexipag tablets (200 mcg, 400 mcg, 600 mcg, 800 mcg, 1000 mcg, 1200 mcg, 1400 mcg, and 1600 mcg) as generic versions of Uptravi® as existing on the date of entry of this Consent Judgment, and as amended or supplemented, (iii) the term "Affiliate" shall 3. 4. 5. 6. mean any entity controlling, controlled by, or under common control with a Party, but only as long as such control continues, where "control" means: (1) the ownership of at least fifty percent (50%) of the equity or beneficial interest of such entity, or the right to vote for or appoint a majority of the board of directors or other governing body of such entity; or (2) the power to directly, or indirectly direct or cause the direction of the management and policies of such entity by any means whatsoever. Unless otherwise authorized by Plaintiffs, Apotex, including any of its successors and assigns, is enjoined from making, using, selling or offering to sell in, or importing into, the United States Apotex's ANDA Products, on its own part or through any Affiliate, officer, agent, servant, employee or attorney, or through any person in concert or coordination with Apotex or its Affiliates, until and after the expiration of the Patents-in-Suit, including any patent term extensions and/or patent term adjustments and during the period of any associated exclusivity. The Parties agree that jurisdiction and venue for an action to enforce performance under this Consent Judgment and Order of Permanent Injunction, including for a preliminary injunction against the breaching conduct, exists in this District Court, and the Parties hereby waive any and all defenses based on personal jurisdiction and venue. The Parties waive all right to appeal or otherwise move for relief from this Judgment and Order. The Complaint and all remaining claims, counterclaims, or affirmative defenses in the above action are dismissed without prejudice and without costs, disbursements, or attorney fees to any party. This Court retains jurisdiction to enforce or supervise performance under this Consent Judgment and Order of Permanent Injunction.
Source: PACER Docket, Case 1:25-cv-01488, Delaware District Court

The consent judgment and order of permanent injunction is structured as a comprehensive agreed resolution: Apotex expressly conceded validity and enforceability of both patents-in-suit and accepted a permanent injunction running through full patent expiry. The complaint and remaining claims were dismissed without prejudice and without costs. The court retained enforcement jurisdiction. Apotex waived all appeal rights, rendering the order immediately final.

PACER case 1:25-cv-01488 · Public docket record Explore in Eureka ↗
Judgment terms

Consent judgment: what the agreed resolution means for both parties

Legal mechanism

What a consent judgment means in ANDA litigation

A consent judgment is a binding, court-entered judgment on terms stipulated by the parties — it carries the full force of a judicial ruling. Here, Judge Williams entered the agreed order as both a judgment and a permanent injunction. The court expressly retained jurisdiction to enforce compliance. Apotex waived all rights to appeal or seek relief from the judgment, making it final and immediately operative.

Court-entered, binding and final
Patent holder outcome

Actelion secures Uptravi® exclusivity through patent expiry

Actelion obtained a permanent injunction blocking Apotex's generic selexipag product across all eight dosage strengths covered by ANDA No. 220457. Crucially, Apotex conceded that both asserted patents are valid and enforceable, eliminating any invalidity cloud from this defendant. The injunction runs through patent expiry, including term extensions and adjustments — providing Actelion with maximum protection for the Uptravi® franchise.

Permanent injunction secured
Defendant outcome

Apotex's generic launch barred until patents expire

Apotex is enjoined from any commercial activity relating to its ANDA selexipag products in the United States until after both patents expire — including patent term extensions, adjustments, and associated exclusivity periods. Apotex conceded validity and enforceability of both patents and waived appeal rights. The complaint was dismissed without prejudice, meaning Actelion retains the ability to bring further claims if circumstances change.

Launch barred through patent expiry
Commercial implications

Selexipag patent barrier raised for remaining generic challengers

Apotex's concession of validity and enforceability of both US9284280B2 and US8791122B2 in a court-entered judgment — while not technically binding on third parties — signals the strength of Actelion's patent position to other potential generic entrants. Any remaining ANDA filers for selexipag will need to mount their own independent challenges to these patents. The swift resolution also demonstrates Actelion's readiness to enforce aggressively and early.

Strong precedent for Uptravi® defence
Legal analysis based on PACER docket records for case 1:25-cv-01488 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffActelion Pharmaceuticals US, Inc.Company/Search in Eureka ↗
DefendantApotex, Inc.Company/Search in Eureka ↗
Plaintiff counselAndrew Colin MayoAttorneyCounsel for Actelion Pharmaceuticals US, Inc.Search in Eureka ↗
Plaintiff counselBrian A. BiggsAttorneyCounsel for Actelion Pharmaceuticals US, Inc.Search in Eureka ↗
Plaintiff law firmAshby & Geddes PCLaw FirmRepresenting Actelion Pharmaceuticals US, Inc.Search in Eureka ↗
Plaintiff law firmBiggs Law Firm, LLCLaw FirmRepresenting Actelion Pharmaceuticals US, Inc.Search in Eureka ↗
Defendant counselKaan EkinerAttorneyCounsel for Apotex, Inc.Search in Eureka ↗
Defendant law firmCozen O'connor PCLaw FirmRepresenting Apotex, Inc.Search in Eureka ↗
Presiding judgeJudge Gregory B. WilliamsJudgeDelaware District CourtSearch in Eureka ↗
R&D signals

R&D signals in the selexipag and PAH patent space

Forward-looking patent intelligence derived from the Actelion v. Apotex selexipag litigation — covering portfolio activity, filing trends, and white-space opportunities in the PAH therapeutic area.

Patent portfolio

Actelion and Nippon Shinyaku's selexipag patent estate

The co-plaintiff structure — Actelion entities alongside Nippon Shinyaku — suggests a layered patent portfolio around selexipag. R&D teams should map both organisations' filing activity across compound, formulation, method-of-treatment, and combination therapy claims to understand the full exclusivity perimeter before investing in PAH prostacyclin receptor agonist programmes.

Multi-party patent estate
Technology landscape

Filing trends in oral PAH prostacyclin agonist treatments

Selexipag is one of a class of oral prostacyclin receptor (IP receptor) agonists for PAH. Monitoring patent filing trends in this class — including new molecular entities, prodrug strategies, and combination approaches with ERA or PDE5 inhibitors — can reveal where competitors are investing and where formulation white space may exist beyond the current Uptravi® patent barrier.

Oral prostacyclin IP landscape
Competitor IP posture

Apotex's PAH and specialty generic patent activity

Apotex's concession of validity and waiver of appeal rights in this consent judgment may reflect the outcome of its own FTO and litigation risk assessment. Tracking Apotex's patent filings and ANDA pipeline in the PAH and specialty respiratory space can provide intelligence on which therapeutic areas it is prioritising for generic entry — and where it may seek design-around opportunities.

Generic entrant pipeline signals
White space opportunity

Formulation and delivery white space beyond selexipag tablets

The asserted patents focus on selexipag compound and compositions as oral tablets. Adjacent white space may exist in novel delivery mechanisms (e.g. extended-release, inhaled, or combination formulations), paediatric dosing approaches, or next-generation IP receptor agonist compounds that fall outside the current claim perimeter. R&D teams should interrogate claim boundaries before committing to adjacent development programmes.

PAH formulation white space
Related litigation

Similar ANDA selexipag and PAH drug patent cases in Delaware

Explore comparable Hatch-Waxman infringement actions involving pulmonary arterial hypertension therapeutics litigated in Delaware District Court, including consent judgments and permanent injunctions.

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Actelion Pharmaceuticals US, Inc. patent enforcement history, Delaware District Court case history, Actelion Pharmaceuticals US, Inc.'s full IP portfolio, and comparable case analysis
Other selexipag ANDA casesPAH drug patent disputesActelion enforcement historyApotex patent litigation record
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Strategic implications

What this case signals for the selexipag and PAH drug IP landscape

Actelion's rapid consent judgment outcome reinforces the enforceability of its selexipag patent estate and raises the cost of generic entry.

Apotex's validity concession strengthens Actelion's hand against other ANDA filers

While a consent judgment binds only the parties, Apotex's formal concession that US9284280B2 and US8791122B2 are valid and enforceable adds reputational weight to Actelion's patent position. Other generic manufacturers with pending selexipag ANDAs must now assess whether to litigate or negotiate, knowing Actelion has demonstrated willingness and ability to secure injunctions swiftly.

127-day resolution suggests early-stage agreement before costly discovery

ANDA cases in Delaware routinely run 2–3 years through trial. Resolution in 127 days — before the 30-month stay elapsed — is consistent with the parties reaching terms before significant litigation costs accumulated. Competitors monitoring the selexipag space should not interpret the speed as a sign of a weak case on either side; the permanent injunction outcome suggests Actelion's position was strong enough to compel early settlement.

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Full strategic analysis in PatSnap Eureka
Unlock deeper IP strategy analysis for this Hatch-Waxman selexipag case at district court level — including patent expiry, co-ownership, and ANDA filer risk mapping.
Patent expiry timelinePTE/PTA analysisNippon Shinyaku IP rights
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Frequently asked questions

Actelion v Apotex — key questions answered

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Track selexipag patent enforcement and PAH generic entry risk

Monitor the full Uptravi® patent estate, including term extensions and related ANDA proceedings, with PatSnap Eureka. Run FTO analysis on US9284280B2 and US8791122B2 and receive alerts on new enforcement actions in the PAH therapeutic space.

Disclaimer

This page is compiled from public court dockets and third-party patent and litigation data via PatSnap Eureka, and is provided for general informational purposes only. The information shown — including party names, patent and application numbers, dates, case status, outcomes, and any analysis — may be incomplete, may not reflect the most recent filings or legal status, and may contain errors or omissions. Verify all details against official court records (for example, PACER) and the relevant patent office before relying on them.

Nothing on this page constitutes legal advice or a legal opinion on the validity, infringement, enforceability, or scope of any patent or case, and no attorney‑client relationship is created by its use. Any description of an outcome (such as a dismissal, settlement, or consent judgment) is a general summary, not a legal determination. All patents, trademarks, and company or law‑firm names are the property of their respective owners. PatSnap makes no warranty as to the accuracy or completeness of this content and disclaims, to the fullest extent permitted by law, all liability for reliance on it. For advice on a specific matter, consult qualified legal counsel.

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