PHARMACOKINETIC TESTING FOR SYSTEMIC EXPOSURE OF ORALLY INHALED AND NASAL DRUGS

4/24/00


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Table of Contents

PHARMACOKINETIC TESTING FOR SYSTEMIC EXPOSURE OF ORALLY INHALED AND NASAL DRUGS

Outline

Why nasal and oral inhalation delivery

Approaches to establish bioavailability/bioequivalence

PPT Slide

Why not BA/BE based on PK alone

Fate of inhaled drug products

Inhalation PK with charcoal block

Lung deposition - Gamma scintigraphy

Nasal Guidance

Decision tree for in vivo product quality BA/BE studies for nasal products

Albuterol metered dose inhaler

Nasal Guidance - PK recommendations

Examples of locally acting nasal products

Examples of systemically acting nasal products

Study designs used in these examples

PK studies: Issues

PK studies: Feasibility

Examples of oral inhalation products

Study designs used in these examples

PK studies: Issues

PK studies: Feasibility

PPT Slide

Summary

Author: RAMANA UPPOOR