Methods and devices for providing prolonged drug therapy

US9029416B2 · kind B2 · utility

Assignee

• ALZA CORPORATION · US

Inventors

• Andrew Lam · South San Francisco, US
• Padmaja Shivanand · Mountain View, US
• Atul D. Ayer · Palo Alto, US
• Zahedeh Hatamkhany · San Jose, US
• Suneel Gupta · Sunnyvale, US
• Diane R. Guinta · Palo Alto, US
• Carol A. Christopher · Belmont, US
• Samuel R. Saks · Palo Alto, US
• Lawrence G. Hamel · Palo Alto, US
• Jeri D. Wright · Dublin, US
• Richard G. Weyers · Los Altos, US

Key dates

• Filing date: Aug 12, 2003
• Grant date: May 12, 2015
• Expiry date: Sep 27, 2024

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K31/4458
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Methods and devices for maintaining a desired therapeutic drug effect over a prolonged therapy period are provided. In particular, oral dosage forms that release drug within the gastrointestinal tract at an ascending release rate over an extended time period are provided. The dosage forms may additionally comprise an immediate-release dose of drug.