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Int J Pediatr Otorhinolaryngol. 2013 Mar;77(3):323-8. doi: 10.1016/j.ijporl.2012.12.027. Epub 2013 Jan 29.

Systematic review of intralesional cidofovir dosing regimens in the treatment of recurrent respiratory papillomatosis.

Author information

  • 1Department of Ear, Nose and Throat Surgery, Bristol Royal Hospital for Children, United Kingdom. philip.clamp@nhs.net

Erratum in

  • Int J Pediatr Otorhinolaryngol. 2013 Jun;77(6):1051.

Abstract

OBJECTIVE:

Surgical management of recurrent respiratory papillomatosis (RRP) usually involves resection via microlaryngoscopy. Intralesional injection of cidofovir has been shown to be an effective adjuvant treatment, but remains unlicensed. United Kingdom General Medical Council guidelines recommend the prescribing doctor should "be satisfied that there is a sufficient evidence base and/or experience of using the medicine to demonstrate its safety and efficacy". This study reviews the published dosing regimens of intralesional cidofovir in the treatment of RRP in order to provide a precedent for those that wish to prescribe it.

METHODS:

A systematic review of the literature was undertaken using Medline, EMBASE and CINAHL. Articles describing the use of intralesional cidofovir for RRP were reviewed. Information regarding cidofovir concentration, volume, total dose, number of treatments, interval between treatments, overall treatment period and follow up was extracted.

RESULTS:

Fifty-one articles were identified. Concentration of cidofovir injected ranged from 0.0001mg/ml to 37.5mg/ml, with 5 to 7.5mg/ml being the most common. The volume of cidofovir solution injection ranged from 0.1 to 20ml. The total dose per injection ranged from 0.15 to 105mg. There was wide variation in dosing regimens with different intervals between endoscopies, number of injections and total doses delivered.

CONCLUSIONS:

Based on this published literature, the precedent for prescribing intralesional cidofovir supports a concentration of 5 to 7.5mg/ml. Volumes up to 5ml per injection are routinely used. Total dose and frequency of cidofovir administration is highly variable. The need for repeat doses of cidofovir should be judged on an individual basis.

Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

[PubMed - indexed for MEDLINE]
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