×

Paliperidone Implant Formulation

  • US 20190328654A1
  • Filed: 06/03/2019
  • Published: 10/31/2019
  • Est. Priority Date: 05/31/2010
  • Status: Active Grant
First Claim
Patent Images

1. ) A method of administering paliperidone to a subject in need thereof, the method comprising administering to said subject an injectable depot composition consisting ofa) 13% wt±

  • 10% of the drug paliperidone having a particle size distribution described as follows al less than 10% of the total volume of particles being smaller than 10 microns;

    less than 10% of the total volume of particles being larger than 225 microns, and a d0.5 value in the range of 40-130 microns;

    b) less than 10% of the total volume of particles being smaller than 10 microns;

    less than 10% of the total volume of particles being larger than 200 microns, and a d0.5 value in the range of 40-90 microns;

    c) not more than 10% of drug particles smaller than 25 microns, not more than 10% of drug particles larger than 225 microns;

    d) less than 10% of the particles being smaller than 10 microns;

    less than 10% of the particles being larger than 225 microns, and a d0.5 value in the range of 60-130 microns;

    e) a d0.5 in the range of 60-130 microns;

    or f) d(0.1)=17.41 microns, d(0.5)=51.61 microns and d(0.9)=175.32 microns;

    b) 25-27% wt of biocompatible poly(lactide-co-glycolide) copolymer (PLGA) having a monomer ratio of lactic acid to glycolic acid of about 50;

    50, wherein the copolymer is end-capped, has an inherent viscosity in the range of 0.27 to 0.31 dl/g measured by gel permeation chromatography in tetrahydrofuran at 30°

    C. using a flow rate of 1 ml/min; and

    c) DMSO,wherein the DMSO to paliperidone mass ratio is about 4;

    1 to 5;

    1; and

    wherein the weight percentages are relative to the weight of the injectable depot composition.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×