Nextcea Inc. v. Lipotype, Inc.; Lipotype GmbH

CourtDistrict Court, D. Massachusetts
DecidedFebruary 6, 2026
Docket1:24-cv-12624
StatusUnknown

This text of Nextcea Inc. v. Lipotype, Inc.; Lipotype GmbH (Nextcea Inc. v. Lipotype, Inc.; Lipotype GmbH) is published on Counsel Stack Legal Research, covering District Court, D. Massachusetts primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Nextcea Inc. v. Lipotype, Inc.; Lipotype GmbH, (D. Mass. 2026).

Opinion

UNITED STATES DISTRICT COURT DISTRICT OF MASSACHUSETTS

) NEXTCEA INC., ) ) Plaintiff, ) ) v. ) No. 1:24-cv-12624-JEK ) LIPOTYPE, INC.; LIPOTYPE GMBH, ) ) Defendants. ) )

MEMORANDUM AND ORDER ON DEFENDANTS’ MOTION TO DISMISS

KOBICK, J. Plaintiff Nextcea Inc. claims that defendants Lipotype, Inc. and Lipotype GmbH (collectively, “Lipotype”) have induced and contributed to the infringement of its patented method of testing samples for isomers of a biomarker that is correlated with phospholipidosis and other lysosomal storage disorders. Lipotype has moved to dismiss the complaint, arguing that Nextcea’s patent is directed to unpatentable laws of nature and that Nextcea’s claims of induced and contributory infringement therefore fail as a matter of law. Agreeing that Nextcea’s patent claims recite only patent-ineligible natural laws without supplying the necessary inventive concepts to transform Nextcea’s claims into patentable applications of these natural phenomena, the Court will grant the motion to dismiss. BACKGROUND The following facts are recounted based on the allegations in the amended complaint and documents attached to that pleading. Thornton v. Ipsen Biopharmaceuticals, Inc., 126 F.4th 76, 81 (1st Cir. 2025). Nextcea is a Massachusetts-based business founded in 2006 by Dr. Frank Hsieh. ECF 20, ¶¶ 5, 14. It specializes in offering drug development and diagnostic services, including biomarker quantitation and safety assessments for medical conditions like lysosomal storage disorders. Id. ¶¶ 14-16. In a patient with a lysosomal storage disorder, the body’s cells and tissues accumulate

excess lipid materials, like phospholipids, that would normally be broken down. ECF 20-1, at 12 col. 1 lines 13-27. Over time, excessive storage of lipid materials can cause permanent damage to cells and organs. Id. at col. 1 lines 27-30. Lysosomal storage disorders can be inherited or induced by drugs. ECF 20, ¶ 16. Phospholipidosis, the lysosomal storage disorder characterized by excessive accumulation of phospholipids, can be induced by many different classes of drugs. ECF 20-1, at 13 col. 4 lines 27-60; 16 col. 10, lines 5-10. Thus, it can be useful to test for drug-induced phospholipidosis when managing the use of drugs in a patient or when determining whether a drug under evaluation for approval may cause phospholipidosis. Id. at 13 col. 4 lines 55-60; 16 col. 10, lines 5-10. One of the services Nextcea offers involves determining the level of the biomarker di-

docosahexaenoyl (22:6)-bis(monoacylglycerol)phosphate (“di-22:6-BMP”) in samples provided by its customers. ECF 20, ¶ 15. Di-22:6-BMP is a lysosomal phospholipid that can exist in four isoforms and may be measured in non-invasively collected samples, such as urine or plasma. Id.; ECF 20-1, at 14, col. 6 lines 15-17. Hsieh discovered that this biomarker is correlated with certain lysosomal storage disorders, including drug-induced phospholipidosis. ECF 20, ¶ 16. Nextcea applied this correlation to create and perform tests that measure levels of di-22:6-BMP in collected samples. Id. These tests assess whether an individual has induced or inherited phospholipidosis or other lysosomal storage disorders. Id. The patent at issue here, U.S. Patent No. 8,313,949 (the “’949 patent”), is directed towards this discovery. Historically, phospholipidosis has been identified by visually confirming the presence of myeloid bodies in tissues using electron microscopy, a process that is “invasive, relatively non-quantitative, expensive, and time consuming.” ECF 20-1, at 14, col. 5 line 60 – col.

6 line 2. By contrast, the patented invention offers a “less invasive approach for detecting phospholipidosis,” exploiting the “unexpected discovery” that different levels of the four isoforms of di-22:6-BMP (as well as several other biomarkers) “correlate differentially with the phospholipidosis induced by different drugs and inherited lysosomal storage disorders.” Id. at 12, col. 1 lines 40-47; 14, col. 6 lines 5-6. As compared to electron microscopy, the methods described in the patent “provid[e] a better means of defining the temporal relationship between the onset and time course of phospholipidosis with the changes that lead to drug toxicity.” Id. at 14, col. 6 lines 9-12. The patent, which was filed on October 14, 2009 and granted on November 20, 2012, claims priority to U.S. Provisional Application No. 61/169,789, which was filed on April 16, 2009. Id. at 12, col. 1 lines 7-9; ECF 20, ¶¶ 19-20.

The ’949 patent contains twenty method claims, three of which—claims 1, 14, and 16— are independent. Claim 1 is addressed to “[a] method for evaluating the activity of a test compound to induce phospholipidosis in a target subject”; claim 14 to “[a] method for managing patient treatment comprising identifying a patient under a treatment suspected to induce phospholipidosis in the patient”; and claim 16 to “[a] method of diagnosing a lipid storage disorder in a human subject.” ECF 20-1, at 18, col. 13 lines 64-65; 19 col. 15 lines 4-6, 26-27. Each of the three claims involves three steps: (1) obtaining a test sample; (2) determining the level of each of the four isomers of di-22:6-BMP (and, optionally, another three biomarkers) in the sample; and (3) comparing the level of each biomarker in the test sample with a corresponding pre-determined level for the same biomarker, obtained from a control sample. Id. at 18, col. 13 line 66 – col. 14 line 17; 19 col. 15 lines 7-18, 28-30, col. 16 lines 1-9. For claim 1, “the test compound is determined to have the activity to induce phospholipidosis in the target subject if the level of any of the group of biomarkers is at or above the corresponding pre-determined level.” Id. at 18, col.

14 lines 18-21. For claim 14, “the patient is determined to be not suitable for the treatment if the level of any of the group of biomarkers is at or above the corresponding predetermined level.” Id. at 19, col. 15 lines 19-21. And for claim 16, “having a level of any of the group of biomarkers that is at or above the corresponding predetermined level indicates that the subject has or is at risk of developing the lipid storage disorder.” Id. at 19, col. 16 lines 10-13. Nextcea alleges that Lipotype has induced and contributed to infringement of the ‘949 patent. Lipotype sells, offers for sale, provides, and promotes services that use mass spectrometry to test and quantify the amounts of selected lipids in test samples sent in by its customers. ECF 20, ¶¶ 23-24. One of these services is titled “MS-based lipid analysis of BMP phospholipids” (“BMP Analysis Services”). Id. ¶ 25. On its website offering this service for purchase, Lipotype notes that

BMPs “play a role in lysosomal storage diseases” and “are also researched as a non-invasive biomarker to monitor phospholipidosis with drug-induced toxicities.” ECF 20-2, at 2; ECF 20, ¶¶ 25-26. Lipotype’s “Tech Sheet,” which it distributes to promote and solicit its BMP Analysis Services, also states that the test may be applied to lysosomal storage diseases and phospholipidosis, and that Lipotype’s “fully quantitative results” separately report species for each “sn-isomer.” ECF 20-3, at 2; ECF 20, ¶¶ 27-30. According to Nextcea, Lipotype encourages customers to use its services, provides sample preparation, and offers instructions and guidance to its customers on how to apply its analysis—which is provided to customers via data reports and an optional data visualization software—to their “diagnostic and/or drug testing applications, services, and research.” ECF 20, ¶¶ 32-35; ECF 20-2, at 10. As a result, Nextcea contends, customers purchase Lipotype’s services and directly infringe Nextcea’s patent. ECF 20, ¶¶ 32-35.

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Nextcea Inc. v. Lipotype, Inc.; Lipotype GmbH, Counsel Stack Legal Research, https://law.counselstack.com/opinion/nextcea-inc-v-lipotype-inc-lipotype-gmbh-mad-2026.