Publicaciones científicas

Monoclonal antibodies: pharmacokinetics as a basis for new dosage regimens?

Azanza JR (1), Sádaba B (2), Gómez-Guiu A (2).
(1) Department of Clinical Pharmacology, Clínica Universidad de Navarra, Pamplona, Spain 
(2) Department of Clinical Pharmacology, Clínica Universidad de Navarra, Pamplona, Spain. 

Revista: Journal of Oncology Pharmacy Practice

Fecha: 01-oct-2015

Farmacología Clínica

RESUMEN

Complete monoclonal IgG antibodies which are in use in clinical practice share some pharmacological properties resulting in high concentrations in plasma. This fact is reflected in their low volumes of distribution, which can also be correlated with a high molecular weight and water solubility.

This feature allows a novel approach to be applied to the dosing schedule for this group of drugs with fixed doses being used instead of the initially developed weight- or body surface-adjusted dosing schedules. In addition, the development of a new formulation containing hyaluronidase allows a subcutaneous route of administration to be used, because hyaluronidase creates a space in the subcutaneous tissue that helps antibody absorption.

This method requires higher doses, but has allowed testing the feasibility of administering a fixed dose, with no individual dose adjustments based on weight or body surface. Moreover, loading doses are not needed, because the first dose results, within 3 weeks, in minimum concentrations that are higher than effective concentrations.

CITA DEL ARTÍCULO  J Oncol Pharm Pract. 2015 Oct;21(5):370-6. doi: 10.1177/1078155214538085. Epub 2014 Jun 5.

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