Metadata of "Efficacy of open-label placebos for premenstrual syndrome: a randomised controlled trial"

Metadata of a randomized controlled trial with 150 women with PMS, examining the effect of an open-label placebo (OLP) intervention on PMS. The study entailed a treatment as usual (TAU; N=50), an OLP intervention without a treatment rationale (OLP-; N=50), and an OLP intervention with a treatment rationale group (OLP+; N=50). Primary outcomes were symptom intensity and interference assessed across three menstrual cycles. Secondary outcomes were psychological and somatic symptom intensity and safety (i.e., the occurrence of adverse events), among further variables of interest.