Hot flash placebo responses: Related to baseline hot flash frequency?
2016
9628 Background: As multiple treatments have been studied for the management of hot flashes in randomized, controlled trials, hot flash placebo responses have been quite variable across trials. Based on observations of trial reports, it was hypothesized that the magnitude of placebo effect might correlate with the number of baseline hot flashes in different studies. The current project examines the effect of the baseline hot flash frequency required for study participation and also the actual number of baseline hot flashes observed as these individually relate to the eventual reductions of hot flash frequency observed in patients receiving placebos. Methods: Data were collected from placebo-controlled, double-blinded, randomized trials, identified by a PubMed search, which reported hot flash frequency at baseline, 4–6 weeks and 12 weeks. Trials were excluded if they had less than 20 participants completing the placebo arm. Data gathered, in each study, included the number of hot flashes required to enroll...
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