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Updated: Jul 13, 2026

Trans-Tympanic Drug Delivery for the Treatment of Ototoxicity
09:52

Trans-Tympanic Drug Delivery for the Treatment of Ototoxicity

Published on: March 16, 2018

Ototoxicity

L P Rybak1, V Ramkumar

  • 1Department of Surgery, Southern Illinois University, School of Medicine, Springfield, Illinois 62794-9653, USA. lrybak@siumed.edu

Kidney International
|July 27, 2007
PubMed

Insights

Drug-induced hearing loss from aminoglycosides and cisplatin may be preventable. Antioxidants show promise in protecting the inner ear, with one clinical trial demonstrating reduced hearing loss when aspirin was combined with gentamicin.

Area of Science:

  • Ototoxicity research
  • Pharmacology
  • Otolaryngology

Background:

  • Aminoglycoside antibiotics and cisplatin are common therapeutic agents with known nephrotoxic and ototoxic side effects.
  • These drugs damage outer hair cells in the cochlea, leading to high-frequency sensorineural hearing loss.
  • The ototoxic mechanisms involve the generation of reactive oxygen species within the cochlea, triggering cell death pathways.

Purpose of the Study:

  • To review recent findings on the mechanisms of drug-induced hearing loss.
  • To explore potential protective strategies against ototoxicity.
  • To discuss the clinical implications and challenges of implementing protective agents.

Main Methods:

  • Review of existing literature on aminoglycoside and cisplatin ototoxicity.
  • Examination of experimental studies on protective agents, including antioxidants.
  • Analysis of a specific double-blind, placebo-controlled clinical trial in China.

Main Results:

  • Reactive oxygen species are implicated in the ototoxicity of both drug classes.
  • Antioxidants have shown protective effects in animal models.
  • A clinical trial demonstrated that aspirin administration reduced gentamicin-induced hearing loss.

Conclusions:

  • Drug-induced hearing loss is a significant concern with certain therapeutic agents.
  • Protective agents, particularly antioxidants, offer potential for preventing ototoxicity.
  • Careful administration strategies, such as middle ear injection, may be necessary to avoid compromising therapeutic efficacy.

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