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Study identifier: NCT05895747 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

5-HTP and Creatine for Depression R33 Phase

Condition: Major Depressive Disorder  ·  Sponsor: University of Utah

PhasePhase 2
Planned participants106
Who can joinAll sexes, 18 Years to 65 Years
Healthy volunteersNo

About this study

This is a three-armed clinical trial examining the effect of 5-hydroxytryptophan and creatine monohydrate as augmenting agents for the treatment of depression. Subjects will be randomized between 5-HTP 100mg BID + creatine 5g daily, 5-HTP 200mg BID + creatine 10g daily, vs double placebo, for 8 weeks. The ability of the interventions to affect biomarkers associated with depression will be assessed using brain phosphorus magnetic resonance spectroscopy, functional connectivity imaging, and plasma serotonin levels.

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

Talk to the study team

Brent Kious, MD  ·  8015851418  ·  brent.kious@hsc.utah.edu

Hailey Nielson, MS  ·  801-581-3475  ·  hailey.nielson@utah.edu

Always discuss trial participation with your own doctor first.

Locations (1)

University of Utah Department of PsychiatrySalt Lake City, Utah, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT05895747