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Study identifier: NCT07267559 Synced from ClinicalTrials.gov · July 29, 2026
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Dual Orexin Antagonism and Emotion and Affective Processing Study

Condition: Learning · Cognitive Functioning · Emotional Processing  ·  Sponsor: University of Oxford

PhasePhase 4
Planned participants62
Who can joinAll sexes, 18 Years to 40 Years
Healthy volunteersYes

About this study

In this study, the investigators will examine the effects of blocking the orexin system on human behaviour and brain function using daridorexant, a medication that inhibits orexin activity. Orexin is a brain chemical involved in regulating sleep, emotion, motivation, and stress responses, which are often disrupted in mental health disorders. Healthy volunteers will be randomly assigned to receive a single dose of daridorexant or placebo in a double-blind design. Participants will then complete behavioural and cognitive tasks assessing emotional processing, aversive learning, and executive function. The study aims to clarify the role of orexin in emotional and cognitive processes relevant to conditions such as depression and anxiety.

This description comes directly from the study's public registry record.

Talk to the study team

Michael J Colwell, DPhil  ·  01865 618200  ·  michael.colwell@psych.ox.ac.uk

Daniela A Borges, MD  ·  01865 618200  ·  daniela.almeidaborges@psych.ox.ac.uk

Always discuss trial participation with your own doctor first.

Locations (1)

Department of Psychiatry, University of OxfordOxford, United KingdomRecruiting

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Source record: clinicaltrials.gov/study/NCT07267559