Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot study

Topical treatments have gained popularity for general use as an adjunct to systemic drugs in neuropathic pain, but their use produces variable clinical results and local adverse events. Objective To evaluate the safety and analgesic effect of a formulation of liposomal capsaicin (LC) (0.025%) in pat...

Full description

Bibliographic Details
Main Authors: Manoel Jacobsen Teixeira, Luciana Mendes Bahia Menezes, Valquiria Silva, Ricardo Galhardoni, José Sasson, Massako Okada, Kleber Paiva Duarte, Lin T. Yeng, Daniel Ciampi de Andrade
Format: Article
Language:English
Published: Academia Brasileira de Neurologia (ABNEURO) 2015-03-01
Series:Arquivos de Neuro-Psiquiatria
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2015000300237&lng=en&tlng=en
_version_ 1811256935305969664
author Manoel Jacobsen Teixeira
Luciana Mendes Bahia Menezes
Valquiria Silva
Ricardo Galhardoni
José Sasson
Massako Okada
Kleber Paiva Duarte
Lin T. Yeng
Daniel Ciampi de Andrade
author_facet Manoel Jacobsen Teixeira
Luciana Mendes Bahia Menezes
Valquiria Silva
Ricardo Galhardoni
José Sasson
Massako Okada
Kleber Paiva Duarte
Lin T. Yeng
Daniel Ciampi de Andrade
author_sort Manoel Jacobsen Teixeira
collection DOAJ
description Topical treatments have gained popularity for general use as an adjunct to systemic drugs in neuropathic pain, but their use produces variable clinical results and local adverse events. Objective To evaluate the safety and analgesic effect of a formulation of liposomal capsaicin (LC) (0.025%) in patients with post herpetic neuralgia (PHN). Method Patients who remained symptomatic after first-and second-line treatment were randomized to receive LC for six weeks in a placebo-controlled, crossover design study. Clinical assessment was performed at baseline, in the second, fourth and sixth week of treatment. Results Thirteen patients completed both treatment periods. Visual Analog Scale (VAS) was significantly decreased after the end of the study (p = 0.008), however the effect of treatment was not significant (p = 0.076). There was no difference on global impression of change and other pain characteristics. LC was safe and well tolerated. However, at the concentration used, its analgesic effects were marginal and not significant.
first_indexed 2024-04-12T17:48:47Z
format Article
id doaj.art-14cc704982554ffb9125278faa9a426f
institution Directory Open Access Journal
issn 1678-4227
language English
last_indexed 2024-04-12T17:48:47Z
publishDate 2015-03-01
publisher Academia Brasileira de Neurologia (ABNEURO)
record_format Article
series Arquivos de Neuro-Psiquiatria
spelling doaj.art-14cc704982554ffb9125278faa9a426f2022-12-22T03:22:34ZengAcademia Brasileira de Neurologia (ABNEURO)Arquivos de Neuro-Psiquiatria1678-42272015-03-0173323724010.1590/0004-282X20140232S0004-282X2015000300237Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot studyManoel Jacobsen TeixeiraLuciana Mendes Bahia MenezesValquiria SilvaRicardo GalhardoniJosé SassonMassako OkadaKleber Paiva DuarteLin T. YengDaniel Ciampi de AndradeTopical treatments have gained popularity for general use as an adjunct to systemic drugs in neuropathic pain, but their use produces variable clinical results and local adverse events. Objective To evaluate the safety and analgesic effect of a formulation of liposomal capsaicin (LC) (0.025%) in patients with post herpetic neuralgia (PHN). Method Patients who remained symptomatic after first-and second-line treatment were randomized to receive LC for six weeks in a placebo-controlled, crossover design study. Clinical assessment was performed at baseline, in the second, fourth and sixth week of treatment. Results Thirteen patients completed both treatment periods. Visual Analog Scale (VAS) was significantly decreased after the end of the study (p = 0.008), however the effect of treatment was not significant (p = 0.076). There was no difference on global impression of change and other pain characteristics. LC was safe and well tolerated. However, at the concentration used, its analgesic effects were marginal and not significant.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2015000300237&lng=en&tlng=encapsaicinadorneuralgia, analgesiaefeitos adversos
spellingShingle Manoel Jacobsen Teixeira
Luciana Mendes Bahia Menezes
Valquiria Silva
Ricardo Galhardoni
José Sasson
Massako Okada
Kleber Paiva Duarte
Lin T. Yeng
Daniel Ciampi de Andrade
Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot study
Arquivos de Neuro-Psiquiatria
capsaicina
dor
neuralgia, analgesia
efeitos adversos
title Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot study
title_full Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot study
title_fullStr Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot study
title_full_unstemmed Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot study
title_short Liposomal topical capsaicin in post-herpetic neuralgia: a safety pilot study
title_sort liposomal topical capsaicin in post herpetic neuralgia a safety pilot study
topic capsaicina
dor
neuralgia, analgesia
efeitos adversos
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2015000300237&lng=en&tlng=en
work_keys_str_mv AT manoeljacobsenteixeira liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT lucianamendesbahiamenezes liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT valquiriasilva liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT ricardogalhardoni liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT josesasson liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT massakookada liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT kleberpaivaduarte liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT lintyeng liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy
AT danielciampideandrade liposomaltopicalcapsaicininpostherpeticneuralgiaasafetypilotstudy