Treatment and prevention of liver disease associated with parenteral nutrition (PN)

US10350186B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10350186-B2
Application numberUS-201815912851-A
CountryUS
Kind codeB2
Filing dateMar 6, 2018
Priority dateNov 12, 2003
Publication dateJul 16, 2019
Grant dateJul 16, 2019

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present invention is based on the discovery that parenteral nutrition (PN) induced liver disease, e.g. fatty liver disease, can be prevented and even reversed by administration of primarily omega-3-fatty acid with PN rather than the administration of the standard intravenous lipid emulsions that contain primarily plant derived omega-6 fatty acid. Thus, the present invention provides a method for treating or preventing liver disease in a human patient obtaining nutritional support through PN. The method comprises intravenous administration of an effective amount of an omega-3-fatty acid emulsion to the patient, wherein the patient is not administered phytosterols or plant derived fatty acids, e.g. omega-6 fatty acids derived from a plant source, and wherein the administration of the omega-3-fatty acid emulsion to the patient is for a period greater than three weeks. Preferably, the administration is for a period of greater than six weeks. More preferably, the administration is for a period greater than three months.

First claim

Opening claim text (preview).

We claim: 1. A method for preventing parenteral nutrition-associated cholestasis (PNAC) in a human patient obtaining nutritional support through total parenteral nutrition (PN) comprising intravenous administration of an effective amount of a lipid emulsion comprising fish oil derived omega-3-fatty acid as the active ingredient to a human patient obtaining long-term nutritional support through parenteral nutrition, wherein the emulsion does not contain phytosterols or plant derived fatty acids, and wherein the patient is not administered phytosterols or plant derived fatty acids. 2. The method of claim 1 , wherein the fish oil is derived from a source selected from the group consisting of menhaden, herring, mackerel, cod, caplin, tilapia, tuna, sardine, pacific saury, salmon, arctic char and krill. 3. The method of claim 1 , wherein the emulsion is prepared using an emulsifying agent selected from the group consisting of egg phosphatidylcholine, egg lecithin, L-adipalmitoyl phosphatidylcholine (DPPC), DL-a-dipalmitoyl phosphatidylethanolamine (DPPE), and dioleoyl phosphatidylcholine (DOPC). 4. The method of claim 1 , wherein the patient is a newborn. 5. The method of claim 1 , wherein the patient is a premature newborn. 6. The method of claim 1 , wherein the patient is an infant. 7. The method of claim 6 , wherein the infant is less than 2 years old. 8. The method of claim 1 , wherein the patient is a child under the age of 18. 9. The method of claim 1 , wherein the patient is a child under the age of 12. 10. The method of claim 1 , wherein the patient is an adult receiving long term nutritional support through parenteral nutrition. 11. The method of claim 1 , wherein the emulsion is administered until said patient is capable of receiving adequate nutrition from enteral food intake. 12. The method of claim 1 , wherein the omega-3-fatty acid is administered at a dose of 0.2 g/kg/day to 3.0 g/kg/day. 13. The method of claim 1 , wherein the omega-3-fatty acid is administered at a dose of 0.5 g/kg/day to 1.0 g/kg/day. 14. The method of claim 1 , wherein the patient has short-bowel syndrome. 15. The method of claim 1 , wherein the administration of the lipid emulsion is for a period greater than 3 weeks. 16. The method of claim 1 , wherein the administration of the lipid emulsion is for a period greater than 6 weeks. 17. The method of claim 1 , wherein the administration of the lipid emulsion is for a period greater than 3 months. 18. A method for preventing parenteral nutrition-associated cholestasis (PNAC) in a human patient less than two years old obtaining nutritional support solely through parenteral nutrition (PN), the method comprising intravenous administration of an effective amount of a lipid emulsion comprising fish oil derived omega-3-fatty acid as the active ingredient to a human patient less than two years old obtaining long-term nutritional support through parenteral nutrition, wherein the emulsion does not contain phytosterols or plant derived fatty acids, wherein the patient is not administered phytosterols or plant derived fatty acids, and wherein the human patient less than two years old has short-bowel syndrome. 19. A method for treating parenteral nutrition-associated cholestasis (PNAC) in a human patient in need thereof comprising intravenous administration of a lipid emulsion to the human patient, wherein the patient is obtaining nutritional requirements solely through total parenteral nutrition, and the lipid emulsion consists essentially of an effective amount of fish oil rich in omega-3-fatty acids and does not contain plant derived omega-6-fatty acids, wherein the patient is administered the lipid emulsion for a period greater than three weeks, wherein the patient is not administered any other form of lipid parenteral emulsion during the period of treatment, and wherein said human patient is a child under the age of 12.

Assignees

Inventors

Classifications

  • Nutrients, e.g. vitamins, minerals · CPC title

  • for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics · CPC title

  • A61K31/202Primary

    having three or more double bonds, e.g. linolenic (eicosanoids, e.g. leukotrienes A61K31/557) · CPC title

  • Parenteral nutrition; Parenteral nutrition compositions as drug carriers · CPC title

  • Emulsions {; Emulsion preconcentrates; Micelles (composition of emulsions A61K47/00)} · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10350186B2 cover?
The present invention is based on the discovery that parenteral nutrition (PN) induced liver disease, e.g. fatty liver disease, can be prevented and even reversed by administration of primarily omega-3-fatty acid with PN rather than the administration of the standard intravenous lipid emulsions that contain primarily plant derived omega-6 fatty acid. Thus, the present invention provides a metho…
Who is the assignee on this patent?
Childrens Medical Center
What technology area does this patent fall under?
Primary CPC classification A61K31/202. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jul 16 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).