KnowraPlacebo-controlled trialLinked fromLinked fromThe 15 pages that link to Placebo-controlled trial, each with the reason it gives.All 15Broader topic 2Related 10Narrower topic 1Compared with 2Psychedelic therapyRelated: Blinding is difficult when psychedelic effects are noticeable, complicating efficacy comparisons.Psychedelic experienceRelated: Expectations and unmistakable drug effects complicate placebo control in psychedelic studies.LevetiracetamRelated: Trials against placebo established levetiracetam's ability to reduce seizure frequency as add-on therapy.ModafinilRelated: Clinical trials use this design to test whether modafinil reduces sleepiness beyond placebo effects.Mood stabilizerRelated: Controlled trials help distinguish a drug's effects from symptom changes that would occur without it.Positive thinkingRelated: It helps distinguish effects of a positive-thinking practice from expectancy and other influences.VareniclineRelated: Varenicline’s efficacy and safety have been assessed in placebo-controlled cessation trials.Hypericum perforatumRelated: Clinical trials of St John’s wort use this design to distinguish treatment effects from expectation.ResveratrolRelated: Such trials help separate resveratrol's effects from expectation, background changes, and study bias.ThetaHealingRelated: This design can test whether reported benefits exceed expectation and treatment-context effects.