Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 2, 2026, 10:29 PM EDT

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Showing 1–4 of 4 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Spinal Cord Injuries
Interventions
5HTP, L-DOPA, Placebo oral tablet, Carbidopa
Drug
Lead sponsor
Jessica M D'Amico
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Louisville, Kentucky
Conditions
Mild or Moderate Asthma With Allergic Sensitization
Interventions
5-Hydroxytryptophan, Placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
8 Years to 18 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Completed Phase 4 Interventional Accepts healthy volunteers

Serotonin and the Upper Airway in Obstructive Sleep Apnea

NCT00100464
Conditions
Obstructive Sleep Apnea
Interventions
Paroxetine, 5HTP
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
16 Years to 60 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2003
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Spinal Cord Injuries
Interventions
5-Hydroxytryptophan 100 MG, 5-Hydroxytryptophan, Carbidopa, Placebo
Drug
Lead sponsor
University of Alberta
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Louisville, Kentucky