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Efficacy of duloxetine on chronic temporomandibular disorder: a randomized clinical trial

Grant number: 18/06014-7
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): July 01, 2018
Effective date (End): March 31, 2021
Field of knowledge:Health Sciences - Dentistry - Dental Clinics
Principal Investigator:Paulo César Rodrigues Conti
Grantee:Dyna Mara Araújo Oliveira Ferreira
Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil

Abstract

The primary aims of this randomized controlled trial are to evaluate the short-term efficacy of duloxetine on pain intensity reduction in patients with chronic temporomandibular disorders (TMD) and to investigate the predictive value of the inhibitory pain modulation phenotype on this response. Eighty patients with chronic TMD will be randomized and concealed allocated into two treatment groups (duloxetine and placebo). The following phenotypic domains (outcomes) will be investigated: pain clinical characteristics, psychosocial factors, sleep quality, mechanical somatosensory profile and endogenous pain inhibition. The treatment duration will totalize 3 months and the outcome variables will be measured before (T0) and after treatment (T1). In addition, the primary outcome will be the pain reduction magnitude, which will be assessed by the difference between the mean pain intensity during the last week measured at T0 and T1. Furthermore, the conditioned pain modulation (CPM) test at T0 will be regarded as the primary predictor for the treatment response variability. Analysis of covariance (ANCOVA) will be computed with the between-subject factor treatment (2 levels) and the quantitative covariate CPM at T0 in order to establish the main effects of treatment group on pain reduction while controlling the possible interaction with the inhibitory pain modulation capacity (CPM in T0) as a possible predictor of this reduction. The significance level will be set at 5% (p <0.050).

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ARAUJO OLIVEIRA FERREIRA, DYNA MARA; COSTA, YURI MARTINS; BONJARDIM, LEONARDO RIGOLDI; RODRIGUES CONTI, PAULO CESAR. Effects of acute mental stress on conditioned pain modulation in temporomandibular disorders patients and healthy individuals. Journal of Applied Oral Science, v. 29, . (18/06014-7)

Please report errors in scientific publications list by writing to: cdi@fapesp.br.