Clinical drug investigation
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Review Meta Analysis
Umeclidinium Plus Vilanterol Versus Placebo, Umeclidinium, or Vilanterol Monotherapies for Chronic Obstructive Pulmonary Disease: A Meta-Analysis of Randomized Controlled Trials.
The role of umeclidinium plus vilanterol as a combination therapy for chronic obstructive pulmonary disease (COPD) has not yet been clearly defined. ⋯ Compared with the other three groups, i.e. placebo, umeclidinium and vilanterol, umeclidinium plus vilanterol improves lung function and quality of life in patients with COPD, reduces the use of albuterol, and does not increase the incidence of adverse events and serious adverse events.
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Sore throat, cough, and hoarseness are the common and severe complications after general anesthesia with tracheal intubation. The efficacy of prophylactic administration of corticosteroids in reducing the incidence of postoperative complications is controversial. Thus, we conducted a meta-analysis to assess the effects of corticosteroids in the prevention of postoperative complications. ⋯ Evidence from this meta-analysis of 18 RCTs indicated that prophylactic administration of corticosteroids is not only effective in reducing the incidence and severity of postoperative sore throat and hoarseness, but also the incidence of laryngeal edema and reintubation.
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Review Meta Analysis
5-HT3 Receptor Antagonists for Propofol Injection Pain: A Meta-Analysis of Randomized Controlled Trials.
5-hydroxytryptamine3 (5-HT3) receptor antagonists have been commonly used to reduce propofol injection pain. The aim of this meta-analysis was to evaluate the efficacy and safety of 5-HT3 receptor antagonists in decreasing the incidence and intensity of propofol injection pain. ⋯ Our meta-analysis indicates that 5-HT3 receptor antagonists can effectively reduce the incidence and severity of propofol injection pain. Additionally, 5-HT3 receptor antagonists may become the alternatives to lidocaine in attenuating propofol injection pain. However, evidence is still limited for the safety of 5-HT3 receptor antagonists on propofol injection pain.
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Review Meta Analysis
An investigation of factors contributing to higher levels of placebo response in clinical trials in neuropathic pain: a systematic review and meta-analysis.
In new drug development in neuropathic pain (NeP), randomized, double-blind, placebo-controlled trials (PCTs) with long treatment durations in a parallel-group design are recommended for confirmatory trials. ⋯ The results of this study suggest that NeP condition, trial design, and demographic and baseline characteristics may contribute to elevated placebo response in clinical trials in patients with NeP. In addition, the magnitude of placebo response and the effect of treatment duration are greater in pDPN than in PHN. These facts should be considered when planning and conducting confirmatory trials in NeP.
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Placebo response in clinical trials for anti-epileptic drugs (AEDs) has been examined and a recent meta-analysis revealed that East Asian trials showed unexpectedly higher placebo response. As multi-national trials have become common, it is important to understand placebo response in different settings, including regions/countries for future clinical trials. ⋯ Patient characteristics such as longer disease duration and CPS at baseline contribute to a reduction in placebo response in clinical trials of AEDs for partial epilepsy. While the reasons for the geographical difference in placebo response are not clear, these and other patient characteristics contributing to placebo response should be carefully considered in the design of future clinical trials of AEDs for partial epilepsy.