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J Clin Anesth ; 76: 110576, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34794108

RESUMO

STUDY OBJECTIVE: VVZ-149 is a small molecule that inhibits the glycine transporter type 2 and the serotonin receptor 5-hydroxytryptamine 2A. In the present study, we investigated the efficacy and safety of VVZ-149 as a single-use injectable analgesic for treating moderate to severe postoperative pain after colorectal surgery. DESIGN: Randomized, parallel group, double-blind Phase 2 clinical trial (NCT02489526). SETTING: 3 academic institutions in the United States. PATIENTS: 60 patients undergoing laparoscopic colorectal surgery. INTERVENTIONS: A continuous 8-h intravenous infusion of VVZ-149 Injections (n = 40) or placebo (n = 20) administered after emergence from anesthesia. MEASUREMENTS: The outcome measures included pain intensity (PI), opioid consumption via patient-controlled analgesia (PCA), and rescue dosing provided "as needed". Early rescue dosing with opioids postoperatively was associated with preoperative negative affect (anxiety, depression, and pain catastrophizing), enabling it to be used as an indirect measure of the affective component of pain. Efficacy outcomes were compared between treatment groups based on preoperative negative affect and early rescue dosing of opioids. MAIN RESULTS: Postoperative PI was non-significantly lower in patients receiving VVZ-149 compared to those receiving placebo. The VVZ-149 group had a 34.2% reduction in opioid consumption for 24 h post-dose, along with fewer PCA demands. Somnolence and headache was higher in the intervention group. For patients characterized by high levels of preoperative negative affect, the VVZ-149 group experienced a significant pain reduction and 40% less opioid use compared to the placebo group. CONCLUSIONS: VVZ-149 resulted in a non-significant reduction of postoperative pain during the first 8 h after surgery. Post hoc analysis indicates that VVZ-149 may benefit patients with negative affect who otherwise have higher postoperative opioid use. REGISTRATION NUMBER: www.clinicaltrials.gov, ID: NCT02489526.


Assuntos
Cirurgia Colorretal , Laparoscopia , Analgesia Controlada pelo Paciente , Analgésicos/uso terapêutico , Analgésicos Opioides , Método Duplo-Cego , Humanos , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/prevenção & controle
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