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Details for Patent: 9,345,724

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Details for Patent: 9,345,724

Title:Sodium thiosulfate-containing pharmaceutical compositions
Abstract: Provided herein are pharmaceutically acceptable sodium thiosulfate and pharmaceutical compositions thereof. Also provided herein are methods for determining the total non-purgeable organic carbon in a sodium thiosulfate-containing sample. Further provided herein are methods for producing pharmaceutically acceptable sodium thiosulfate. Still further provided herein are methods of treatment comprising the administration of pharmaceutically acceptable sodium thiosulfate.
Inventor(s): Sherman; Craig (Scottsdale, AZ), Smith; Catherine Marie (Grafton, WI), Wirtz; Kevin Robert (Belgium, WI), Schulze; Erich (Mission Viejo, CA)
Assignee: Hope Medical Enterprises, Inc. (Scottsdale, AZ)
Filing Date:Jun 20, 2014
Application Number:14/310,133
Claims:1. Pharmaceutical grade sodium thiosulfate pentahydrate which contains no greater than about 8 ppm of non-purgeable organic carbon, contains no greater than about 0.05 ppm of mercury, contains no greater than about 2 ppm of aluminum, contains no greater than about 0.003% by weight of selenium, contains no less than about 98% by weight and no greater than about 102% by weight of sodium thiosulfate on an anhydrous basis measured by ion chromatography, has a water content between 32% and 37% by weight, has a heavy metal content of no greater than about 10 ppm, contains no greater than about 200 ppm of chloride, contains no greater than about 0.001% by weight of sulfide, contains no greater than about 0.002% by weight of iron, contains no greater than about 0.01% by weight of calcium, contains no greater than about 0.005% by weight of potassium, contains no greater than about 0.1% of sulfite, contains no greater than about 0.5% of sulfate, contains no greater than about 3 ppm of arsenic, contains no greater than about 0.001% by weight of lead, has total aerobic count of microbial load of no greater than about 100 CFU/g, has total yeast and mold count of no greater than about 20 CFU/g, contains no greater than about 0.02 EU/mg of bacterial endotoxins, contains no greater than about 0.002% by weight of nitrogen compounds, contains no greater than about 0.005% by weight of insoluble matter, contains no greater than 0.01% by weight of residual anti-caking agent, and contains no greater than ICH Q3C (R3) limits of organic volatile impurities, wherein a 10% aqueous solution of the solid sodium thiosulfate pentahydrate at 25 .degree. C. is colorless and has a pH between about 6.0 and about 8.0, and wherein the solid sodium thiosulfate pentahydrate is odorless crystals.

2. The pharmaceutical grade sodium thiosulfate pentahydrate of claim 1, which has a positive identification test for sodium.

3. The pharmaceutical grade sodium thiosulfate pentahydrate of claim 1, which has a positive identification test for thiosulfate.

4. A pharmaceutical composition comprising sodium thiosulfate pentahydrate and one or more pharmaceutically acceptable carriers or excipients, wherein the sodium thiosulfate pentahydrate contains no greater than about 8 ppm of non-purgeable organic carbon, contains no greater than about 0.05 ppm of mercury, contains no greater than about 2 ppm of aluminum, contains no greater than about 0.003% by weight of selenium, contains no less than about 98% by weight and no greater than about 102% by weight of sodium thiosulfate on an anhydrous basis measured by ion chromatography, has a water content between 32% and 37% by weight, has a heavy metal content of no greater than about 10 ppm, contains no greater than about 200 ppm of chloride, contains no greater than about 0.001% by weight of sulfide, contains no greater than about 0.002% by weight of iron, contains no greater than about 0.01% by weight of calcium, contains no greater than about 0.005% by weight of potassium, contains no greater than about 0.1% of sulfite, contains no greater than about 0.5% of sulfate, contains no greater than about 3 ppm of arsenic, contains no greater than about 0.001% by weight of lead, has total aerobic count of microbial load of no greater than about 100 CFU/g, has total yeast and mold count of no greater than about 20 CFU/g, contains no greater than about 0.02 EU/mg of bacterial endotoxins, contains no greater than about 0.002% by weight of nitrogen compounds, contains no greater than about 0.005% by weight of insoluble matter, contains no greater than 0.01% by weight of residual anti-caking agent, and contains no greater than ICH Q3C (R3) limits of organic volatile impurities.

5. The pharmaceutical composition of claim 4, wherein the composition is formulated for oral, parenteral, inhalation, nasal, intravesical, vaginal, rectal, sublingual, ophthalmic, or topical administration.

6. The pharmaceutical composition of claim 5, wherein the composition is formulated as a single dosage form.

7. The pharmaceutical composition of any of claim 4, wherein the pharmaceutically acceptable excipient is water.

8. The pharmaceutical composition of claim 4, further comprising an isotonic agent and one or more pH adjusting agents.

9. The pharmaceutical composition of claim 8 which is sterile and suitable for intravenous administration, wherein the isotonic agent is potassium chloride, present at about 4.40 mg/mL and the pH adjusting agents are boric acid, present at about 2.80 mg/mL and sodium hydroxide, wherein the sodium thiosulfate pentahydrate is present at about 250.0 mg/mL.

10. A sterile, aqueous solution suitable for intravenous injection, comprising 250.0 mg/mL sodium thiosulfate pentahydrate of claim 1, 4.40 mg/mL potassium chloride, and 2.80 mg/mL boric acid.

11. The sterile, aqueous solution of claim 10, further comprising an additional quantity of boric acid and sodium hydroxide sufficient to achieve a pH suitable for injection.

12. The sterile, aqueous solution of claim 10, comprising 12.5grams of said sodium thiosulfate pentahydrate, 140 mg boric acid and 220 mg potassium chloride.

13. A sterile, aqueous solution intended for intravenous injection prepared by combining the sodium thiosulfate pentahydrate of claim 1, boric acid, potassium chloride, sodium hydroxide and water.

14. A method for treating platinum-induced ototoxicity, platinum-induced nephrotoxicity, cyanide poisoning, calciphylaxis, vascular calcification associated with atherosclerosis or a fungal infection of the skin, nailbeds, or nails, comprising administering to a subject in need thereof a therapeutically effective amount of pharmaceutical grade sodium thiosulfate pentahydrate of claim 1.

15. The method of claim 14, wherein said subject is treated for cyanide poisoning.
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