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Expert Opin Drug Saf ; 20(1): 51-68, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33103931

RESUMO

INTRODUCTION: Peripheral neuropathic pain is a disabling condition for patients and a challenge for physicians. Although many drugs have been assessed in scientific studies, few have demonstrated clear clinical efficacy against neuropathic pain. Moreover, the paucity of data regarding their safety raises the question of the benefit-risk ratio when used in patients experiencing peripheral neuropathies. AREAS COVERED: We conducted a review of double-blind, placebo-controlled, randomized clinical trials to assess the safety of medications used to treat peripheral neuropathic pain. This second review was focused on opioids, cannabinoids, and other medications. The aim was to provide an overview of the treatment-emergent adverse events (TEAEs) (≥10%) and the serious adverse effects described in clinical trials. EXPERT OPINION: Opioids and cannabinoids had significantly more TEAEs than placebos. Locally administered analgesics, such as capsaicin, lidocaine, botulinum toxin A seemed to have the most acceptable safety with only local adverse effects. The results for NMDA antagonists were inconclusive since no safety report was available. Less than half of the studies included presented a good description of TEAEs that included a statistical comparison versus a placebo group. Major methodological improvements must be made to ameliorate the assessment of medication safety in future clinical trials.


Assuntos
Analgésicos Opioides/efeitos adversos , Canabinoides/efeitos adversos , Doenças do Sistema Nervoso Periférico/tratamento farmacológico , Analgésicos/administração & dosagem , Analgésicos/efeitos adversos , Analgésicos Opioides/administração & dosagem , Canabinoides/administração & dosagem , Método Duplo-Cego , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa
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