Breath Metabolomics of Placebo Effects, a Pilot Study

Overview

This study is to analyze the breath metabolome before and after the administration of a placebo in an established experimental pain procedure in healthy subjects in order to investigate placebo effects, and whether they induce any measurable changes at the metabolic level.

Interrogation of the exhaled breath metabolome will be performed by using an objective method of measurement for placebo effects in pain analgesia, known as Cold Pressure Test (CPT). CPT reactions can be measured objectively by blood pressure spikes as well as changes in continuous heart rate monitoring.To this end, probands will be continuously connected to a Heartrate \& Blood Pressure Monitor. First, baseline exhalation will be assessed. Then, the CPT is performed according to the 'CPT Guide' with subsequent post-pain exhalations analysis with or without self-administration of the placebo (NaCl nasal spray). After 15 minutes rest, probands will be submitted to a second post-pain exhalations set (+/- placebo). The process is completely non-invasive as the participant just exhales through a commercially available disposable bacterial/viral filter coupled to the ion source.

Conditions

Interventions

Eligibility

Locations (1)

Outcomes