A novel remote controlled capsule for site-specific drug delivery in human GI tract

Int J Pharm. 2009 Dec 1;382(1-2):160-4. doi: 10.1016/j.ijpharm.2009.08.026. Epub 2009 Aug 28.

Abstract

Remote controlled capsule (RCC) has been extensively used in the field of site-specific drug delivery. It is a potent tool to study the regional drug absorption of the gastrointestinal (GI) tract that provides pharmaceutical scientists with significant pharmacokinetics data for oral drug formulation development. In present investigations, a patented novel RCC has been devised based on micro-electronic mechanical system (MEMS) technology. Micro-thrusters were for the first time exploited as drug release actuators of RCCs. As the micro-thruster is ignited by a radio frequency (RF) signal, the thrust force generated by the propellants pushes the piston forward and leads to a rapid and complete expulsion of therapeutic agents from the capsule. The micro-thruster merely consumes 120 mW for ignition and the duration time of drug release is decreased to less than 1 s. The feasibility of the novel RCC was evaluated through animal experiments in beagles using aminophylline as the model drug. The novel RCC developed is a promising alternative for site-specific drug delivery in human GI tract.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Oral
  • Aminophylline / administration & dosage*
  • Aminophylline / pharmacokinetics
  • Animals
  • Capsules
  • Dogs
  • Drug Delivery Systems* / instrumentation
  • Equipment Design
  • Feasibility Studies
  • Gastrointestinal Tract / metabolism*
  • Humans
  • Intestinal Absorption
  • Micro-Electrical-Mechanical Systems* / instrumentation
  • Pilot Projects
  • Robotics* / instrumentation
  • Solubility
  • Technology, Pharmaceutical / instrumentation
  • Technology, Pharmaceutical / methods*

Substances

  • Capsules
  • Aminophylline