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Abstract

Medicine

Direct Drug Delivery to Kidney via the Renal Artery

Published: April 17th, 2021

DOI:

10.3791/61932

1Bioscience Renal, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, 2Cell/mol Pharmacology, Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, 3CVRM Safety, Safety, Clinical Pharmacology & Safety Sciences, R&D, 4Department of Cardiovascular and Renal Research, University of Southern Denmark, 5Clinical Renal, Late-stage Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D

Abstract

There is a need for directed injections to enable increased and specific renal exposure for efficient evaluation of drug targets in the renal research field. Accumulation of drugs in certain organs may give rise to adverse and unwanted effects, depending on the nature of injectate. To minimize spillover and/or accumulation in other tissues, the herein described method directs the formulation into the renal artery bloodstream by inserting a catheter in the infra renal aorta, just below where it branches into the renal artery, resulting in the kidney as first reached organ and distributing of formulation throughout the kidney.

This manuscript provides a detailed description of the method, as well as its challenges and difficulties. It guides the experimenter to become skillful with this type of microsurgery that requires accuracy under sterile conditions. Speed is crucial for minimizing the ischemia and practicing the procedure will increase the chance of successful injections without adverse effects. By modulating the time between injection and reperfusion as well as the injected volume, the risk of spillover to other organs is mitigated.

Note that this technique is suitable for single dosing strategies.

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Keywords Direct Drug Delivery

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