Liquid pharmaceutical formulations of palonosetron
The present invention relates to shelf-stable liquid formulations of palonosetron for reducing chemotherapy and radiotherapy induced emesis with palonosetron. The formulations are particularly useful in the preparation of intravenous and oral liquid medicaments.
1. A method of manufacturing and terminally sterilizing a finished single unit dose vial of palonosetron or a pharmaceutically acceptable salt thereof comprising: a) providing one or more sterile open containers; b) filling said containers with a pharmaceutically stable solution of palonosetron or a pharmaceutically acceptable salt thereof; c) sealing said filled containers; d) terminally sterilizing said sealed, filled containers; and e) optionally adjusting the pH of said solution using HCl or NaOH prior to step (c), wherein the pharmaceutically stable solution has a pH of from about 4.0 to about 6.0 and comprises palonosetron hydrochloride in a concentration of from about 0.03 mg/mL to about 0.2 mg/mL based on the weight of the free base, an aqueous carrier, and a tonicity agent, and wherein the pharmaceutically stable solution optionally comprises one or a combination of mannitol, a chelating agent, and a citrate buffer.
2. The method of claim 1 , wherein said solution comprises 0.05 mg/ml of palonosetron hydrochloride based on the weight of the free base.
3. The method of claim 1 , wherein said solution comprises HCl or NaOH as a pH adjusting agent.
4. The method of claim 1 , wherein said solution has a pH of from 4.5 to 5.5, HCl or NaOH as a pH adjusting agent, and mannitol.
5. A single unit dose of palonosetron hydrochloride made by the method of claim 4 .
6. The method of claim 1 , wherein said solution has a pH of from 4.5 to 5.5, HCl or NaOH as a pH adjusting agent, a chelating agent and mannitol.
7. A single unit dose of palonosetron hydrochloric made by the method of claim 6 .
8. The method of claim 1 , wherein said solution comprises HCl or NaOH as a pH adjusting agent, a chelating agent and mannitol.
9. The method of claim 1 , wherein said solution comprises a chelating agent and mannitol.
10. The method of claim 1 , wherein said solution comprises a chelating agent.
11. The method of claim 1 , wherein said solution comprises mannitol.
12. A single unit dose of palonosetron hydrochloride made by the method of claim 1 .