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Gilead v. Apotex & MSN: GENVOYA® Patent Infringement (US10039718) | PatSnap
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Case ID1:23-cv-00774
FiledJul 2023
ClosedFeb 2025
Patent Litigation

Gilead v. Apotex & MSN — GENVOYA® Generic ANDA Challenge Consolidated into SYMTUZA® Action

Gilead Sciences filed suit against Apotex and MSN entities in Delaware alleging infringement of US10039718 via ANDA submissions for generic GENVOYA®. After infringement was stipulated, the case was consolidated with related SYMTUZA® litigation — folding five defendants into a single validity battle spanning 585 days.

Resolution time
585days
585-day duration before consolidation — typical for ANDA Hatch-Waxman actions in Delaware
Patents asserted
1
US10039718 — GENVOYA® & SYMTUZA® HIV antiretroviral tablet formulation
Outcome
Case Consolidated
Merged into lead SYMTUZA® action C.A. No. 21-1621-MN; infringement already stipulated
Cost ruling
Fees Reserved
Parties expressly preserved rights to seek fees and costs; no award made at consolidation
Published by PatSnap Insights Team · Verified by PatSnap Eureka Data
Case overview

Infringement Stipulated, Validity Fight Moves to Consolidated SYMTUZA® Docket

On July 14, 2023, Gilead Sciences filed this Hatch-Waxman infringement action in the District of Delaware against Apotex Inc., Apotex Corp., MSN Pharmaceuticals Inc., MSN Laboratories Private Ltd., and MSN Life Sciences Private Ltd. The suit alleged that the defendants’ submission of ANDA No. 218575 — seeking FDA approval for a generic version of GENVOYA® — infringed claims 1, 4–5, 14–15, 17, 19–20, and 22–23 of US10039718 under 35 U.S.C. § 271(e)(2)(A). GENVOYA® is Gilead’s fixed-dose HIV combination therapy containing elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide.

The case closed on February 18, 2025 via consolidation into lead action C.A. No. 21-1621-MN, which governs parallel SYMTUZA® ANDA challenges involving the same ‘718 patent and many of the same defendants. Critically, infringement was not in dispute at closure: the GENVOYA Defendants stipulated to infringement of all asserted claims under §§ 271(e)(2)(A), (a), (b), (c), and/or (g). The consolidation order provides that if any asserted claim survives a validity challenge, final judgment and injunctive relief under § 271(e)(4) will automatically enter against the GENVOYA Defendants.

The 585-day timeline from filing to consolidation is broadly consistent with coordinated Hatch-Waxman case management in Delaware, where overlapping ANDA defendants are routinely merged to avoid duplicative validity trials. The public record does not disclose the outcome of the validity challenge — that issue remains live in the consolidated SYMTUZA® docket. What drove the consolidation is transparent: both the GENVOYA and SYMTUZA actions turn on identical legal and factual questions about the validity of the ‘718 patent’s asserted claims, making separate litigation inefficient and potentially inconsistent.

Case at a glance
Case no.1:23-cv-00774
DefendantApotex, Inc.
CourtDelaware
JudgeMaryellen Noreika
FiledJuly 14, 2023
ClosedFebruary 18, 2025
Duration585 days
OutcomeCase Consolidated
Verdict causeInfringement Action
BasisCase Consolidated
Prior Art Intelligence
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Case data sourced from PACER / Delaware District Court via PatSnap Eureka Litigation Intelligence Explore similar cases ↗
Case timeline

Filing to Case Consolidated in 585 days

585-day duration before consolidation — typical for ANDA Hatch-Waxman actions in Delaware

Case timeline: Complaint filed JUL 14 2023, MAY — 585 days total Horizontal timeline showing the three key events in Gilead Sciences, Inc. v Apotex, Inc. from filing to resolution. Source: PACER, Delaware District Court. JUL 14 2023 Complaint filed Pre-trial proceedings FEB 18 2025 Case Consolidated 585 DAYS TOTAL
Consolidation terms

Case transferred to lead docket: what the consolidation order means for both parties

Legal mechanism

Consolidation narrows the battlefield to validity alone

Case consolidation under Fed. R. Civ. P. 42(a) merges actions sharing common questions of law or fact. Here, the GENVOYA Action was folded into the SYMTUZA® lead docket (C.A. No. 21-1621-MN) because both turn on the validity of the same asserted claims of US10039718. Infringement is no longer contested — only whether those claims can withstand validity challenge will determine the outcome.

Validity-only from here
Patent holder outcome

Gilead secures infringement stipulation before trial

By obtaining a court-entered infringement stipulation prior to consolidation, Gilead eliminated the need to prove infringement at trial. If any asserted claim survives invalidity, § 271(e)(4)(A) and (B) relief — blocking FDA approval and potentially awarding damages — enters automatically against all GENVOYA Defendants. This structurally strengthens Gilead’s position going into the consolidated validity hearing.

Infringement established
Challenger outcome

Defendants preserve validity challenge but lose infringement fight

The GENVOYA Defendants retain the right to contest validity of the asserted claims — their only remaining avenue to market. Having stipulated to infringement, they cannot revisit that issue. The consolidation means they will litigate alongside the Lupin Defendants and other ANDA filers, potentially sharing litigation costs and invalidity arguments, but also risking that an adverse validity ruling in the lead case binds them all.

Validity is only defence
Commercial implications

Generic HIV therapy market entry hinges on one validity decision

GENVOYA® and SYMTUZA® are multi-billion-dollar HIV combination therapies. A finding that the ‘718 patent’s asserted claims are valid would block both generic products across all ANDA filers simultaneously. Conversely, an invalidity ruling would open the market to multiple generic entrants at once, creating acute pricing pressure on Gilead’s HIV franchise. The consolidated structure concentrates that commercial risk into a single judicial outcome.

High-stakes validity decision pending
Legal analysis based on PACER docket records for case 1:23-cv-00774 and PatSnap Eureka litigation intelligence Search PatSnap Eureka ↗
Parties and representation

Full party and counsel information

RoleNameTypeDetail
PlaintiffGilead Sciences, Inc.CompanyBiopharmaceutical innovator — holder of US10039718 covering GENVOYA® HIV therapySearch in Eureka ↗
DefendantApotex, Inc.CompanyGeneric pharmaceutical manufacturers (Apotex and MSN groups) seeking FDA ANDA approvalSearch in Eureka ↗
Co-DefendantApotex Corp.CompanySearch in Eureka ↗
Co-DefendantMSN Pharmaceuticals, Inc.CompanySearch in Eureka ↗
Co-DefendantMSN Laboratories Private, Ltd.CompanySearch in Eureka ↗
Co-DefendantMSN Life Sciences Private, Ltd.CompanySearch in Eureka ↗
Plaintiff counselJack B. BlumenfeldAttorneyCounsel for Gilead Sciences, Inc.Search in Eureka ↗
Plaintiff counselJeremy A. TiganAttorneyCounsel for Gilead Sciences, Inc.Search in Eureka ↗
Plaintiff law firmMorris, Nichols, Arsht & Tunnell LLPLaw FirmRepresenting Gilead Sciences, Inc.Search in Eureka ↗
Defendant counselCortlan S. HitchAttorneyCounsel for Apotex, Inc.Search in Eureka ↗
Defendant law firmMorris James LLPLaw FirmRepresenting Apotex, Inc.Search in Eureka ↗
Presiding judgeJudge Maryellen NoreikaJudgeDelaware District CourtSearch in Eureka ↗
Official verdict

Official order — verbatim text

“WHEREAS Defendants Apotex Inc. and Apotex Corp. (collectively, the “Apotex Defendants”), MSN Laboratories Private Ltd., MSN Life Sciences Private Ltd., and MSN Pharmaceuticals Inc. (collectively, the “MSN Defendants”) (the Apotex Defendants and the MSN Defendants collectively, the “GENVOYA Defendants”) submitted Abbreviated New Drug Application (“ANDA”) No. 218575 (“the APOTEX GENVOYA ANDA”) seeking approval to manufacture, use, offer for sale, sell, and/or import a generic version of Plaintiff’s GENVOYA® product (the “APOTEX GENVOYA ANDA product”), including a certification under 21 U.S.C. § 355(j)(2)(A)(vii)(IV); WHEREAS Plaintiff Gilead Sciences, Inc. (“Gilead”) filed a Complaint (C.A. No. 23-774- MN, D.I. 1) alleging that the GENVOYA Defendants’ submission of the APOTEX GENVOYA ANDA infringed U.S. Patent No. 10,039,718 (“the ’718 patent”) under 35 U.S.C. § 271(e)(2)(A), and that the making, using, selling, offering for sale, and/or importing in or into the United States of the APOTEX GENVOYA ANDA product would infringe the ’718 patent under §§ 271(a), (b), (c) and/or (g) (the “GENVOYA Action”); WHEREAS Gilead and the GENVOYA Defendants have determined that good cause exists and wish to narrow the issues in dispute in the GENVOYA Action; WHEREAS the Apotex Defendants, as well as Defendants Lupin Limited and Lupin Pharmaceuticals, Inc. (collectively, the “Lupin Defendants”) and the MSN Defendants, have filed ANDAs seeking FDA approval to market a generic version of Janssen Products, L.P.’s SYMTUZA® product; WHEREAS, Gilead, together with Gilead Sciences Ireland UC, Janssen Products, L.P., Janssen Sciences Ireland Unlimited Company (collectively, the “SYMTUZA Plaintiffs”), filed a patent infringement suit on the ’718 patent based on the filing of those ANDAs seeking FDA approval to market a generic version of SYMTUZA®, against: (a) the Apotex Defendants on October 25, 2022 (C.A. No. 22-1399-MN); (b) the Lupin Defendants and the MSN Defendants on November 16, 2021 (C.A. No. 21-1621-MN); and (c) the Lupin Defendants and the MSN Defendants on May 9, 2023 (C.A. No. 23-508-MN), which the Court consolidated on June 26, 2023 (C.A. No. 21-1621-MN, D.I. 128) (the “SYMTUZA Actions”);WHEREAS, in the SYMTUZA Actions, the Lupin Defendants, MSN Defendants, and Apotex Defendants have all stipulated to infringement of, and the Court has entered an order that the Lupin Defendants, MSN Defendants, and Apotex Defendants infringe, claims 1, 4–5, 14–15, 17, 19–20, and 22–23 (the “Asserted Claimed”) of the ’718 patent (C.A. No. 21-1621-MN, D.I. 67 & 128, C.A. No. 22-1338-MN, D.I. 20); WHEREAS, the GENVOYA Action and the SYMTUZA Actions involve the same factual and legal issues relating to the validity of the Asserted Claims of the ’718 patent; WHEREAS, all counsel hereby certify that they have received approval to submit this stipulation and proposed order from their respective clients; NOW, THEREFORE, it is hereby stipulated and agreed as follows, subject to the approval of the Court, that: 1. By submitting the APOTEX GENVOYA ANDA, the GENVOYA Defendants have infringed the Asserted Claims of the ’718 patent under 35 U.S.C. § 271(e)(2)(A). 2. The GENVOYA Defendants’ making, using, selling, offering for sale, and/or importing in or into the United States of the APOTEX GENVOYA ANDA product prior to the expiration date of the ’718 patent (including any extensions and/or additional periods of exclusivity to which Gilead is or will be entitled) would infringe the Asserted Claims of the ’718 patent under 35 U.S.C. §§ 271(a), (b), (c), and/or (g). 3. Gilead asserts only the Asserted Claims of the ’718 patent against the GENVOYA Defendants in the GENVOYA Action, and the GENVOYA Defendants will assert their counterclaims and defenses only against the Asserted Claims of the ’718 patent.Gilead and the GENVOYA Defendants further agree that there will be no further fact or expert discovery in the GENVOYA Action related solely to the issue of infringement by the GENVOYA Defendants of the Asserted Claims of the ’718 patent. 5. If the Court renders a decision that any of the Asserted Claims of the ’718 patent is not invalid, then a final judgment in Gilead’s favor and orders pursuant to 35 U.S.C. § 271(e)(4)(A) and 35 U.S.C. § 271(e)(4)(B) will be entered against the GENVOYA Defendants for any such claim. 6. Gilead and the GENVOYA Defendants agree that this Order is not a final judgment in Gilead’s favor for the ’718 patent, as the GENVOYA Defendants reserve the right to challenge the validity of the Asserted Claims of the ’718 patent. 7. The GENVOYA Action and the SYMTUZA Actions are consolidated for all purposes. All papers shall be filed in the lead action, C.A. No. 21-1621-MN. 9. The GENVOYA Action and the SYMTUZA Actions shall proceed according to the schedule entered in the SYMTUZA Actions (C.A. No. 21-1621-MN, D.I. 128), subject to the following additions: a. Gilead and the GENVOYA Defendants shall serve their initial disclosures pursuant to Federal Rule of Civil Procedure 26(a)(1) by August 18, 2023; b. The GENVOYA Defendants shall adopt the Supplemental Final Invalidity Contentions served on July 7, 2023 in the SYMTUZA Actions; Gilead shall be permitted to respond to such Supplemental Final Invalidity Contentions in its Opening or Rebuttal Expert Reports, as applicable; and The GENVOYA Defendants shall produce to Gilead their GENVOYA ANDA and any and all supplements, amendments or replacements to the same, and any and all correspondence to or from FDA regarding the same; otherwise, there shall be no further fact discovery served by or on the GENVOYA Defendants, absent good cause. 10. Subject to paragraph 11 below, the terms of the Stipulated Protective Order in C.A. No. 21-1621-MN (D.I. 35) shall apply in the consolidated GENVOYA Action and the SYMTUZA Actions. 11. Notwithstanding any statement to the contrary in the Stipulated Protective Order, Gilead and the SYMTUZA Plaintiffs may disclose, summarize, describe, reveal, or otherwise make available, in whole or in part, any confidential information provided by one defendant to the outside counsel of record or experts of another defendant concerning the ’718 patent. 12. Nothing herein is intended to be or shall be construed as a waiver of the parties’ right to seek fees or costs.”
Source: PACER Docket, Case 1:23-cv-00774, Delaware District Court

The stipulation and consolidation order reflects a carefully negotiated procedural narrowing rather than a merits adjudication. Infringement of the asserted claims is now court-established fact; the only live issue is validity. The verdict language’s conditional construction — ‘if the Court renders a decision that any Asserted Claim is not invalid’ — underscores that the validity question remains entirely open in the consolidated SYMTUZA® docket. No finding of invalidity or validity has been made. The automatic judgment clause is a contingent remedy, not a current award.

PACER case 1:23-cv-00774 · Public docket record Explore in Eureka ↗
Patent at issue

US10039718 — HIV antiretroviral combination tablet (GENVOYA® / SYMTUZA®)

Publication No.US10039718B2
Application No.US12/434513
Patent details
ProductFixed-dose HIV combination antiretroviral tablet formulation
Cited in actionJuly 14, 2023

US10039718 (application no. 12/434,513) protects formulations relevant to fixed-dose combination HIV antiretroviral tablets. The asserted claims — 1, 4–5, 14–15, 17, 19–20, and 22–23 — are composition or method claims covering the product architecture common to both GENVOYA® (elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide) and SYMTUZA® (darunavir/cobicistat/emtricitabine/tenofovir alafenamide). The patent’s breadth across two distinct branded HIV therapies is commercially significant, as it creates a single validity chokepoint for multiple generic challenges.

US10039718’s ability to anchor infringement allegations against ANDA filers for both GENVOYA® and SYMTUZA® simultaneously demonstrates the strategic value of broad HIV formulation patents. For competitors, the consolidation of all ANDA validity challenges into one proceeding means the patent either falls for everyone or holds against everyone. Any company with pipeline HIV combination products in the tenofovir alafenamide or cobicistat class should monitor the consolidated validity outcome closely, as it will define the freedom-to-operate boundary for the entire generic HIV tablet segment.

Patent data sourced from USPTO via PatSnap Eureka patent database Search patent records in Eureka ↗
Freedom to operate

Should you run an FTO analysis against US10039718?

Any pharmaceutical company developing or filing an ANDA for a fixed-dose HIV combination antiretroviral product — particularly those containing cobicistat, tenofovir alafenamide, emtricitabine, elvitegravir, or darunavir — should conduct a thorough FTO analysis against US10039718. The patent’s asserted claims have already been found infringed by stipulation in two separate product contexts (GENVOYA® and SYMTUZA®), suggesting broad claim coverage. Waiting for the consolidated validity ruling before conducting FTO analysis carries commercial risk if validity is ultimately upheld.

PatSnap Eureka’s FTO Search Agent can map the asserted claims of US10039718 against your compound’s structural and formulation parameters, identify prior art relevant to the pending validity challenge, and flag related Gilead portfolio patents that may present additional clearance issues. Eureka’s claim-chart automation and litigation monitoring tools also allow R&D and IP teams to track the consolidated SYMTUZA® docket in real time, so you receive immediate alerts when a validity decision is handed down.

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Related litigation

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Strategic implications

What this case signals for the HIV antiretroviral IP landscape

The GENVOYA consolidation illustrates how Gilead’s multi-front ANDA defence strategy concentrates risk and reward into a single patent validity ruling.

Stipulated infringement is a powerful Hatch-Waxman litigation tool

When infringement is technically straightforward — as with ANDA product-by-composition claims — brand holders increasingly seek early stipulations. This eliminates costly infringement discovery, sharpens the trial to validity, and locks in automatic § 271(e)(4) relief if the patent survives. IP teams defending similar ANDA portfolios should assess whether this tactic fits their claim structure early.

Consolidation of overlapping ANDA actions is standard Delaware practice

Delaware courts routinely consolidate ANDA cases involving the same patent and overlapping defendants to avoid inconsistent validity rulings. For ANDA filers and brand defenders alike, this means the first-filed action and its schedule typically governs all later cases. Generic entrants filing subsequent ANDAs on the same patent should expect to be absorbed into an existing docket with limited ability to reset the schedule.

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Full strategic analysis in PatSnap Eureka
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Validity claim-by-claim risk§ 271(e)(4) remedy exposureGeneric entry timing scenarios
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Frequently asked questions

Gilead v Apotex — key questions answered

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Stay ahead of the GENVOYA® patent validity ruling

The consolidated Delaware validity decision on US10039718 will simultaneously determine generic market entry for GENVOYA® and SYMTUZA®. Use PatSnap Eureka to monitor the docket, map your FTO exposure, and track Gilead’s HIV patent portfolio in real time.

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