American Regent v. BPI Labs: Selenium IV Consent Judgment in 81 Days
American Regent, Inc. filed suit against BPI Labs, LLC in New Jersey District Court over two patents covering selenious acid injectable formulations used in parenteral nutrition. The case resolved in just 81 days via a consent judgment that enjoins BPI from commercialising its ANDA product without authorisation, signalling swift enforcement of a niche but commercially significant pharmaceutical IP position.
Swift ANDA enforcement: ARI secures injunction over selenium IV patents
American Regent, Inc. (ARI), a pharmaceutical company and holder of US11998565B2 and US12150957B2, filed suit against BPI Labs, LLC on 16 May 2025 in the District of New Jersey. The dispute centred on BPI’s Abbreviated New Drug Application No. 220051, which covered selenious acid injectable products — parenteral selenium supplements supplied in three concentration configurations — that ARI alleged would infringe its two licensed patents upon approval and commercialisation.
The case terminated on 5 August 2025 via a consent judgment stipulated by both parties. Under the order, BPI and its affiliates, successors, and assigns are enjoined from making, selling, offering to sell, importing, or distributing the BPI ANDA products in the United States without ARI authorisation. All claims and counterclaims were dismissed without prejudice, and no costs or attorneys’ fees were assessed. Critically, the FDA retains the right to grant final ANDA approval, and BPI may maintain Paragraph IV certifications — suggesting a negotiated commercial path may exist under a separate settlement agreement.
Eighty-one days from filing to consent judgment is notably rapid for Hatch-Waxman patent litigation, where cases routinely extend years. The speed is consistent with an early negotiated resolution, likely driven by the 30-month statutory stay mechanism and commercial considerations on both sides. The settlement agreement referenced in the consent judgment is not part of the public record, leaving the precise licensing terms, any authorised generic arrangements, and BPI’s future market entry date undisclosed.
Filing to Consent Judgment in 81 days
81 days — well under the typical 2–4 year ANDA patent litigation timeline
Consent judgment with injunction: what the resolution means for both parties
Consent judgment enjoins BPI — not a merits ruling
A consent judgment is a court-entered order agreed to by both parties, carrying the full enforcement weight of a judicial decree without a trial on the merits. Here, BPI stipulated to an injunction covering both ARI patents, meaning any future violation is directly actionable as contempt. The dismissal of all claims without prejudice preserves each party’s ability to relitigate if the settlement agreement is breached, but does not constitute an admission of liability by either side.
Enforceable by court orderClaims dismissed without prejudice — rights preserved
The order expressly dismisses all claims, counterclaims, affirmative defenses, and demands without prejudice. This means BPI has not surrendered its right to challenge patent validity or non-infringement in a future proceeding if circumstances change — for example, if the settlement agreement’s terms are disputed. Without prejudice dismissal in this context is standard in Hatch-Waxman consent judgments and does not indicate weakness in ARI’s patent position; it reflects mutual risk management.
Without prejudiceARI secures injunction and protects selenious acid market position
American Regent obtained a court-enforced injunction blocking BPI’s ANDA product from the US market absent ARI authorisation. The consent judgment binds BPI’s affiliates, successors, and assigns — structurally limiting workarounds via corporate restructuring. ARI’s two selenium IV patents are effectively shielded from near-term generic competition, and the referenced settlement agreement likely defines a controlled entry date or licensing royalty that ARI negotiated from a position of strength.
Injunction grantedBPI retains ANDA and Paragraph IV rights — future entry possible
BPI accepted the injunction but preserved material optionality: the FDA may still grant final ANDA approval, and BPI may continue filing or maintaining Paragraph IV certifications. This structure is consistent with an authorised generic agreement or a defined market entry date embedded in the undisclosed settlement. BPI avoided a costly trial while keeping its ANDA alive — suggesting the commercial calculus favoured a negotiated entry path over full patent challenge.
ANDA and Para IV rights intactFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | American Regent, Inc. | Company | Pharmaceutical company — holder of US11998565B2 and US12150957B2 (selenious acid IV)Search in Eureka ↗ |
| Defendant | BPI Labs, LLC | Company | Generic pharmaceutical developer; holder of ANDA No. 220051 for selenious acid injectionSearch in Eureka ↗ |
| Plaintiff counsel | Charles H. Chevalier | Attorney | Counsel for American Regent, Inc.Search in Eureka ↗ |
| Plaintiff counsel | Christine A. Gaddis | Attorney | Counsel for American Regent, Inc.Search in Eureka ↗ |
| Plaintiff law firm | Gibbons PC | Law Firm | Representing American Regent, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | New Jersey District CourtSearch in Eureka ↗ |
Official order — verbatim text
The consent judgment is a stipulated court order, not a merits determination — the court made no finding on infringement or validity. Its enforcement significance lies in the injunction’s breadth: BPI and all affiliated and successor entities are barred from commercialising ANDA No. 220051 products absent ARI authorisation. The without-prejudice dismissal preserves litigation rights but practically these are constrained by the parallel private settlement agreement, whose breach triggers the court’s retained jurisdiction. The FDA approval and Paragraph IV carve-outs are the operative signals that a negotiated market-entry arrangement likely exists outside the public record.
US11998565B2 & US12150957B2 — Selenious Acid Injectable Selenium Formulations
US11998565B2 and US12150957B2 both cover selenious acid injectable formulations used to deliver selenium intravenously in parenteral nutrition settings. The application numbers (US18/124391 and US18/672876 respectively) suggest relatively recent filings, consistent with lifecycle management or reformulation patents protecting ARI’s established selenium IV product line. Selenium is an essential micronutrient supplied via injection in critically ill or long-term parenterally fed patients, making this a specialist but clinically critical pharmaceutical category.
In the context of ANDA litigation, these patents sit on the Orange Book and trigger the Hatch-Waxman 30-month stay upon a Paragraph IV challenge — a powerful commercial lever for the innovator. ARI’s ability to obtain a consent injunction against both patents within 81 days suggests a robust claim scope that BPI found difficult to design around or invalidate quickly. Any pharmaceutical company developing a generic selenious acid IV product, or seeking to acquire BPI’s ANDA, faces direct infringement exposure under both assets until their expiry or a negotiated licence.
Should you run an FTO against US11998565B2 and US12150957B2?
Pharmaceutical manufacturers, compounding pharmacies, and generic drug developers working with parenteral selenium formulations — particularly selenious acid injectables at any concentration — should treat both ARI patents as live enforcement risks. The consent judgment confirms ARI’s willingness to litigate rapidly and pursue injunctive relief. The binding of affiliates and successors in the consent order also means ANDA acquirers and licensing partners carry inherited exposure if they step outside the settlement’s boundaries.
PatSnap Eureka’s FTO Search Agent can map the claim scope of US11998565B2 and US12150957B2 against your formulation specifications, identify any design-around opportunities, and surface related continuation or family applications that may extend ARI’s exclusivity window. Running a structured FTO now — before ANDA filing or product launch — is materially lower cost than defending a consent-judgment-backed enforcement action in the District of New Jersey.
Run a freedom-to-operate analysis on US12150957B2 to assess your product’s exposure
Run FTO in Eureka →Similar ANDA patent cases: selenious acid & parenteral nutrition IP disputes
Explore comparable Hatch-Waxman infringement actions involving injectable parenteral nutrition formulations litigated in the District of New Jersey and related federal courts.
Related patent case — similar technology
Comparable case in the same technology domain. Patent holder and defendant reached resolution after proceedings.
SettledRelated infringement action — same court
Comparable Selenious Acid ((1) eq. 600 mcg Selenium/10 mL (eq. 60 mcg Selenium/mL), (2) eq. 60 mcg Selenium/mL (eq. 60 mcg Selenium/mL), and (3) eq. 12 mcg Selenium/2 mL (eq. 6 mcg Selenium/mL))-adjacent infringement action. Patent enforcement dynamics analysed in depth.
Active · District CourtRelated invalidity challenge — appellate outcome
Combined invalidity and infringement action in the same technology space. Decided after substantive proceedings.
DecidedAmerican Regent, Inc.’s broader IP enforcement history
American Regent, Inc.’s full litigation history covering prior enforcement, licensing activity, and inter partes review proceedings.
Portfolio viewWhat this case signals for the parenteral nutrition IP landscape
Swift consent judgments in ANDA cases signal patent strength and early leverage — here is what competitors and IP teams should note.
Early consent judgments typically reflect strong patent positions
When an ANDA filer agrees to a consent injunction within 81 days of suit — before claim construction or any substantive motion — it typically suggests the patent holder presented credible infringement evidence and the generic filer assessed litigation risk as unfavourable. IP teams monitoring the selenious acid space should treat both ARI patents as high-enforcement-probability assets.
The undisclosed settlement agreement is where the real commercial terms live
The public consent judgment reveals the injunction but not the deal. The retained FDA approval pathway and preserved Paragraph IV certifications for BPI strongly suggest a licence or authorised generic arrangement is embedded in the private settlement. Competitors evaluating market entry should monitor FDA Orange Book patent listings and ANDA approval dates for indirect signals about agreed entry windows.
Dual-patent enforcement raises the invalidity challenge bar significantly
ARI asserted two patents covering selenious acid injectable formulations. Consent judgments that encompass multiple patents without any validity carve-outs suggest BPI found no viable IPR or district court invalidity path for either. Future challengers face the compounded cost and risk of attacking both ‘565 and ‘957 simultaneously — a materially higher hurdle than a single-patent case.
Affiliate and successor binding expands ARI’s enforcement reach
The consent judgment expressly binds BPI’s affiliates, successors, and assigns under a detailed control definition. This drafting forecloses the common generic industry tactic of transferring ANDA rights to a related entity to avoid injunction scope. Any acquirer of BPI’s selenium ANDA pipeline inherits the injunction — a due diligence red flag that materially affects ANDA asset valuation.
American v BPI — key questions answered
The consent judgment, entered 5 August 2025, enjoins BPI Labs, its affiliates, successors, and assigns from making, selling, offering to sell, importing, or distributing the BPI ANDA No. 220051 selenious acid products in the United States without authorisation from American Regent. All claims were dismissed without prejudice. The FDA retains the right to approve BPI’s ANDA, and BPI may maintain Paragraph IV certifications.
The two patents asserted are US11998565B2 (application US18/124391) and US12150957B2 (application US18/672876), both covering selenious acid injectable formulations for parenteral selenium supplementation. Both are identified as ‘Licensed ARI Patents’ in the consent judgment, suggesting they are listed in the FDA Orange Book for ARI’s selenious acid product.
A dismissal without prejudice means neither party is barred from re-litigating the underlying claims if circumstances warrant — for example, if BPI were to act outside the scope of the settlement agreement. However, the consent injunction remains in force and is enforceable by the court. In practice, BPI’s strategic options are largely governed by the private settlement agreement rather than the dismissal mechanism.
The case resolved in 81 days, well below the typical 2–4 year ANDA litigation timeline. This pace is consistent with early settlement negotiations, possibly initiated before or shortly after filing. The Hatch-Waxman 30-month stay provides innovators leverage to negotiate from a position of strength, and the breadth of the consent injunction suggests BPI did not find a viable invalidity or non-infringement position worth litigating to trial.
BPI’s ANDA No. 220051 covers selenious acid injectable products in three concentration configurations: (1) equivalent to 600 mcg selenium per 10 mL (60 mcg/mL); (2) equivalent to 60 mcg selenium per mL; and (3) equivalent to 12 mcg selenium per 2 mL (6 mcg/mL). These are parenteral nutrition micronutrient supplements administered intravenously to patients who cannot receive oral or enteral nutrition.
Protect your injectable formulation pipeline from ANDA enforcement risk
American Regent’s rapid consent judgment shows how quickly Orange Book patents can shut down a generic selenium IV programme. Run a PatSnap Eureka FTO against US11998565B2 and US12150957B2 to assess your exposure before ANDA filing.
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