Related Experiment Videos
Biowaiver monographs for immediate release solid oral dosage forms: ibuprofen
H Potthast1, J B Dressman, H E Junginger
1Federal Institute for Drugs and Medical Devices (BfArM), Kurt-Georg-Kiesinger-Allee 3, Bonn, Germany.
Journal of Pharmaceutical Sciences
|September 2, 2005
Summary
Ibuprofen is a BCS class II drug, meaning its absorption rate can vary with formulation. A biowaiver for immediate-release ibuprofen products is justified if they meet specific rapid dissolution and similar profile criteria.
Area of Science:
- Pharmacology and Pharmaceutical Sciences
- Biopharmaceutics and Drug Delivery
Background:
- Ibuprofen is classified as a Biopharmaceutics Classification System (BCS) class II drug.
- BCS class II drugs exhibit high permeability and low solubility, impacting absorption rates.
- Variations in drug product composition and manufacturing can affect ibuprofen absorption kinetics.
Purpose of the Study:
- To review literature data on ibuprofen's biopharmaceutical properties.
- To assess the scientific justification for granting biowaivers for immediate-release (IR) ibuprofen solid oral dosage forms.
- To define criteria for biowaiver eligibility based on dissolution profiles and excipient composition.
Main Methods:
- Literature review of ibuprofen's properties concerning the Biopharmaceutics Classification System (BCS).
- Analysis of factors influencing ibuprofen absorption rate and extent.
- Evaluation of in vitro dissolution testing as a surrogate for in vivo bioequivalence.
Main Results:
- Ibuprofen is confirmed as a BCS class II drug.
- Manufacturing and composition differences impact absorption rate, not extent, detectable by dissolution tests.
- Biowaivers for IR ibuprofen products are scientifically supported under specific conditions.
Conclusions:
- Biowaivers for immediate-release ibuprofen products are scientifically justified.
- Conditions for biowaiver include specific excipient use, rapid dissolution (≥85% in ≤30 min at pH 6.8), and similar dissolution profiles across pH 1.2, 4.5, and 6.8 compared to a reference product.
- Comparative in vitro dissolution testing can effectively detect formulation-induced differences in drug absorption.