A double-blind, randomized clinical study to determine the efficacy of benzocaine 10% on histamine-induced pruritus and UVB-light induced slight sunburn pain

Introduction: This study aims to explore the efficacy of the topical application of 10% benzocaine for treating pruritus and pain as compared to vehicle ointment. Methods: Twenty male subjects were treated in a randomized double-blind fashion with the investigational medicinal product (IMPD) and vehicle. Immediately after the injection of 100 µg histamine on both arms, subjects received topical treatment and pruritus was subsequently assessed with visual analogue scale (VASpruritus) and Eppendorfer questionnaire. Ultraviolet B radiation (UVB) was administered on the back to induce slight sunburn. Twelve hours after UVB application again the IMPD was applied on the right or left upper back and vehicle on the other side and pain related to sunburn was measured with VASpain and pressure algometry. Results: A trend towards better reduction of pruritus was shown for benzocaine in VASpruritus. For the VASpain significant differences in group comparison (p = 0.02) were observed. Algometer measurements showed onset of pain reduction in the verum group after 20 min whereas in the vehicle-treated area pain relief occurred only after 60 min after application. Conclusions: The topically administered ointment containing 10% benzocaine was found superior over vehicle for treating pain, but not pruritus.

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PID https://www.doi.org/10.6084/m9.figshare.1569638.v3
PID https://www.doi.org/10.6084/m9.figshare.1569638.v2
PID https://www.doi.org/10.6084/m9.figshare.1569638.v1
PID https://www.doi.org/10.6084/m9.figshare.1569638.v4
PID https://www.doi.org/10.6084/m9.figshare.1569638
URL http://dx.doi.org/10.6084/m9.figshare.1569638
URL http://dx.doi.org/10.6084/m9.figshare.1569638.v1
URL http://dx.doi.org/10.6084/m9.figshare.1569638.v4
URL http://dx.doi.org/10.6084/m9.figshare.1569638.v2
URL http://dx.doi.org/10.6084/m9.figshare.1569638.v3
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Author Bauer, Martin
Author Schwameis, Richard
Author Scherzer, Thomas
Author Lang-Zwosta, Isabelle
Author Nishino, Kanako
Author Zeitlinger, Markus
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Collected From Datacite; figshare
Hosted By figshare
Publication Date 2016-01-20
Publisher Taylor & Francis
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Language UNKNOWN
Resource Type Other literature type
keyword FOS: Biological sciences
keyword FOS: Clinical medicine
system:type publication
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Source https://science-innovation-policy.openaire.eu/search/publication?articleId=dedup_wf_001::459053dadb8d033a352bbf87eae06e8a
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Last Updated 23 December 2020, 16:29 (CET)
Created 23 December 2020, 16:29 (CET)