CA3098873A1 - Microparticles and nanoparticles having negative surface charges - Google Patents

Microparticles and nanoparticles having negative surface charges Download PDF

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Publication number
CA3098873A1
CA3098873A1 CA3098873A CA3098873A CA3098873A1 CA 3098873 A1 CA3098873 A1 CA 3098873A1 CA 3098873 A CA3098873 A CA 3098873A CA 3098873 A CA3098873 A CA 3098873A CA 3098873 A1 CA3098873 A1 CA 3098873A1
Authority
CA
Canada
Prior art keywords
solvent
nanoparticles
microparticles
plga
solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA3098873A
Other languages
English (en)
French (fr)
Inventor
Bin Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cytodigm Inc
Original Assignee
Phosphorex Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=68468426&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA3098873(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Phosphorex Inc filed Critical Phosphorex Inc
Publication of CA3098873A1 publication Critical patent/CA3098873A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/51—Nanocapsules; Nanoparticles
    • A61K9/5107—Excipients; Inactive ingredients
    • A61K9/513—Organic macromolecular compounds; Dendrimers
    • A61K9/5146—Organic macromolecular compounds; Dendrimers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyamines, polyanhydrides
    • A61K9/5153—Polyesters, e.g. poly(lactide-co-glycolide)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/337—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Nanotechnology (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Preparation (AREA)
CA3098873A 2018-05-11 2019-05-10 Microparticles and nanoparticles having negative surface charges Abandoned CA3098873A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862670204P 2018-05-11 2018-05-11
US62/670,204 2018-05-11
PCT/US2019/031659 WO2019217780A1 (en) 2018-05-11 2019-05-10 Microparticles and nanoparticles having negative surface charges

Publications (1)

Publication Number Publication Date
CA3098873A1 true CA3098873A1 (en) 2019-11-14

Family

ID=68468426

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3098873A Abandoned CA3098873A1 (en) 2018-05-11 2019-05-10 Microparticles and nanoparticles having negative surface charges

Country Status (5)

Country Link
US (1) US20210169819A1 (https=)
EP (1) EP3814272A4 (https=)
JP (1) JP2021523151A (https=)
CA (1) CA3098873A1 (https=)
WO (1) WO2019217780A1 (https=)

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CA3193188A1 (en) * 2020-10-05 2022-04-14 Cytodigm, Inc. Pharmaceutical composition of siglec-binding agents
CN115382476B (zh) * 2022-07-26 2024-10-22 华东师范大学 一种超小粒径聚合物纳米颗粒的制备方法
EP4572804A2 (en) * 2022-08-17 2025-06-25 The Regents of the University of California Inhalable compositions of cdk9 inhibitors
CN115969796B (zh) * 2022-12-06 2024-07-09 苏州大学 一种jak抑制剂长效微球及其制备方法与应用
WO2025250539A1 (en) * 2024-05-29 2025-12-04 Cytodigm, Inc. Pharmaceutical composition comprising sialic acid for treating diseases related to the lung
CN119033092B (zh) * 2024-10-30 2024-12-24 恢春丹生物科技(海南)有限公司 一种蛹虫草灵芝孢子粉复合制剂及其应用

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Also Published As

Publication number Publication date
US20210169819A1 (en) 2021-06-10
EP3814272A4 (en) 2022-03-02
JP2021523151A (ja) 2021-09-02
EP3814272A1 (en) 2021-05-05
WO2019217780A1 (en) 2019-11-14

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Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20201029

FZDE Discontinued

Effective date: 20240130