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Nanoparticle compositions

  • US 9,999,600 B2
  • Filed: 11/28/2016
  • Issued: 06/19/2018
  • Est. Priority Date: 04/03/2013
  • Status: Active Grant
First Claim
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1. A pharmaceutical composition comprising:

  • (a) a plurality of nanoparticles, each of which is comprised of a biodegradable or biocompatible polymer arranged in a nanoparticle structure whose external surface-is coated with(i) a preparation comprising a crude hydrophobic bacterial extract; and

    (ii) a hydrophilic antigen encapsulated by the nanoparticle structure so that, when the nanoparticle composition is administered to a subject, the antigen is hidden from immune system components; and

    (b) at least one pharmaceutically acceptable excipient.

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