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Combination formulation of two antiviral compounds

  • US 10,039,779 B2
  • Filed: 12/29/2016
  • Issued: 08/07/2018
  • Est. Priority Date: 01/31/2013
  • Status: Active Grant
First Claim
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1. A fixed dose combination tablet comprising:

  • a) from about 10% to about 25% w/w of a solid dispersion comprising ledipasvir dispersed within a polymer matrix formed by copovidone, wherein the weight ratio of ledipasvir to copovidone in the solid dispersion is about 1;

    1 and greater than 70% of the ledipasvir is amorphous;

    b) from about 35% to about 45% w/w of sofosbuvir wherein greater than 70% of the sofosbuvir is crystalline and the crystalline sofosbuvir has XRPD 2θ

    -reflections (°

    ±

    0.2θ

    ) at about;

    6.1, 12.7, 20.1 and 20.8;

    c) from about 5.0% to about 25% w/w of lactose monohydrate;

    d) from about 5.0% to about 25% w/w of microcrystalline cellulose;

    e) from about 1.0% to about 10% w/w of croscarmellose sodium;

    f) from about 0.5% to about 3% w/w of colloidal silicon dioxide; and

    g) from about 0.1% to about 3% w/w of magnesium stearate.

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