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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Serotonin Transporter Clear all
Completed No phase listed Observational Accepts healthy volunteers

Serotonin Transporter Concentrations in Women With a History of Anorexia Nervosa

NCT00320684
View directory record Official record
Conditions
Eating Disorders, Anorexia Nervosa
Interventions
Not listed
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2012 · Synced Sep 7, 2026, 4:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Do Serotonin Reuptake Inhibitors (SSRIs) Affect Bone Mass in Adolescents

NCT02147184
View directory record Official record
Conditions
The Skeletal Effects of SSRIs
Interventions
Not listed
Lead sponsor
Chadi A. Calarge
Other
Eligibility
15 Years to 20 Years
Enrollment
287 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Sep 7, 2026, 4:15 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Serotonin Transporter Genetic Variation and Amygdalar Activation Correlates of Antidepressant Response

NCT00456430
View directory record Official record
Conditions
Depression
Interventions
Escitalopram
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 60 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2007
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Nov 14, 2011 · Synced Sep 7, 2026, 4:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Imaging of Serotonin Transporters in the Brain

NCT00059046
View directory record Official record
Conditions
Healthy, Serotonin Transporter
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 7, 2026, 4:15 PM EDT
Terminated Not applicable Interventional

Study of PET Scans and Serotonin in Hot Flashes Treatment

NCT00249847
View directory record Official record
Conditions
Hot Flashes
Interventions
Paroxetine controlled-release, Conjugated equine estrogen
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 1, 2014 · Synced Sep 7, 2026, 4:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

I-123 Brain Studies of Serotonin Metabolism in Psychiatric Patients and Normal Volunteers

NCT00001771
View directory record Official record
Conditions
Healthy, Mental Disorder, Obsessive Compulsive Disorder, Schizophrenia, Tourette Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 7, 2026, 4:15 PM EDT
Terminated Phase 2 Interventional

A Study to Evaluate Safinamide's Effect on Dopamine and Serotonin's Availability by Using Brain Imaging

NCT01264861
View directory record Official record
Conditions
Parkinson Disease
Interventions
Safinamide
Drug
Lead sponsor
Newron Pharmaceuticals SPA
Industry
Eligibility
40 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 17, 2017 · Synced Sep 7, 2026, 4:15 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Assessment of the Biodistribution and Safety of 123-I MZINT in Healthy Subjects and Parkinson Disease Patients

NCT00427674
View directory record Official record
Conditions
Parkinson Disease
Interventions
[123I] mZINT injection and serial dynamic SPECT imaging
Drug
Lead sponsor
Institute for Neurodegenerative Disorders
Other
Eligibility
18 Years to 70 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 5, 2010 · Synced Sep 7, 2026, 4:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Neuroimaging of St. John's Wort-Induced Changes of Serotonin Metabolism in Normal Subjects

NCT00001919
View directory record Official record
Conditions
Healthy, Mood Disorder
Interventions
Hypericum (LI-160)
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 7, 2026, 4:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Serotonin Transporters in Alcoholism

NCT00085865
View directory record Official record
Conditions
Alcoholism
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 75 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 7, 2026, 4:15 PM EDT
Not listed Not applicable Interventional

Antidepressant Discontinuation in Treatment Resistant Depression

NCT03786614
View directory record Official record
Conditions
Treatment Resistant Depression
Interventions
Discontinuation of serotonergic antidepressants, Continuation of serotonergic medications
Other
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 70 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 17, 2023 · Synced Sep 7, 2026, 4:15 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Serotonin Transporters in Obsessive-Compulsive-Related Disorders

NCT00082550
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 7, 2026, 4:15 PM EDT
Completed Phase 2 Interventional Results available

Pilot Study of Duloxetine in Psychological Resilience

NCT00331799
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Duloxetine
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 1, 2013 · Synced Sep 7, 2026, 4:15 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

PET and MRI Brain Imaging of Bipolar Disorder

NCT01880957
View directory record Official record
Conditions
Bipolar Disorder, Bipolar Depression, Unipolar Depression
Interventions
Lithium, Lamotrigine
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years to 65 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2022 · Synced Sep 7, 2026, 4:15 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Effects of Cognitive Behavioral Therapy on Brain Serotonin Activity in People With Depression

NCT00641108
View directory record Official record
Conditions
Depression
Interventions
ADAM SPECT plus Cognitive Therapy, ADAM SPECT plus No Therapy
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 15, 2020 · Synced Sep 7, 2026, 4:15 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase 1, Open-Label, Single-photon Emission Computed Tomography (SPECT) Study to Evaluate Serotonin and Dopamine Transporter Occupancy After Multiple Dose Administration of SEP-228432 to Achieve Steady State in Healthy Subjects

NCT01531972
View directory record Official record
Conditions
Healthy
Interventions
SEP-228432
Drug
Lead sponsor
Sumitomo Pharma America, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 8, 2013 · Synced Sep 7, 2026, 4:15 PM EDT
Completed Phase 2 Interventional Results available

Pharmacogenetic Study of Ondansetron in Alcohol Use Disorder

NCT02354703
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Ondansetron, Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 70 Years
Enrollment
293 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
3
States / cities
Baltimore, Maryland • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 13, 2022 · Synced Sep 7, 2026, 4:15 PM EDT
Completed No phase listed Observational

Examination of Brain Serotonin Receptors in Patients With Mood Disorders

NCT00026832
View directory record Official record
Conditions
Mood Disorder, Bipolar Disorder, Depression
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 60 Years
Enrollment
214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 7, 2026, 4:15 PM EDT
Not listed No phase listed Observational

Chronic Obstructive Pulmonary Disease (COPD) Activity: Serotonin Transporter (SERT), Cytokines and Depression (CASCADE Study)

NCT01074515
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Not listed
Lead sponsor
University of Washington
Other
Eligibility
40 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
4
States / cities
San Antonio, Texas • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Sep 7, 2026, 4:15 PM EDT