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ClinicalTrials.gov public records Last synced Sep 25, 2026, 12:20 AM EDT

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Showing 1–3 of 3 matching trials from the live ClinicalTrials.gov search.
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Conditions
Major Depressive Disorder
Interventions
Low Dose 5-hydroxytryptophan, High Dose 5-hydroxytryptophan, Low Dose Creatine Monohydrate, High Dose Creatine Monohydrate, Placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 65 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Completed Phase 2 Interventional Results available

ERG/5-HTP in Fragile X Syndrome (FXS)

NCT05030129
Conditions
Fragile X Syndrome
Interventions
5-Hydroxytryptophan, Ergoloid Mesylates, Matching placebo for Ergoloid mesylates, Matching placebo for 5-Hydroxytryptophan
Drug
Lead sponsor
Elizabeth Berry-Kravis
Other
Eligibility
18 Years to 45 Years · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Completed Phase 2 Interventional Results available

5-HTP and Creatine for Depression

NCT04395183
Conditions
Major Depressive Disorder
Interventions
5-Hydroxytryptophan 100 MG, Creatine monohydrate, placebo matched to 5-HTP, Placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
25 Years to 40 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah