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Found 20 studies with search of: "Tryptophan"
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Rank Status Study
1 Recruiting Tryptophan Depletion in Acute Mania
Condition: Bipolar Disorder
Intervention: Other: rapid tryptophan depletion
2 Recruiting The Effect of Serotonergic Modulation on Intestinal Permeability and Visceral Hypersensitivity in Healthy Individuals and Irritable Bowel Syndrome (IBS) Patients
Condition: Irritable Bowel Syndrome
Interventions: Drug: Oxitriptan;   Other: Acute tryptophan depletion;   Other: Amino acid drink with tryptophan;   Drug: Placebo capsule
3 Recruiting A Placebo Controlled Trial Of L-Tryptophan In Post-Operative Delirium
Condition: Post-Operative Delirium
Interventions: Drug: L-tryptophan supplementation;   Drug: placebo
4 Completed Tryptophan and Behavior Therapy for Cocaine Abuse - 1
Condition: Cocaine-Related Disorders
Intervention: Drug: Tryptophan
5 Recruiting A Phase 1 Study of 1-Methyl-D-Tryptophan in Patients With Advanced Malignancies
Condition: Advanced Malignancies
Intervention: Drug: 1-Methyl-D-tryptophan
6 Recruiting 1-Methyl-D-Tryptophan in Treating Patients With Metastatic or Refractory Solid Tumors That Cannot Be Removed By Surgery
Condition: Unspecified Adult Solid Tumor, Protocol Specific
Interventions: Drug: 1-methyl-d-tryptophan;   Other: flow cytometry;   Other: high performance liquid chromatography;   Other: immunohistochemistry staining method;   Other: laboratory biomarker analysis;   Other: pharmacological study
7 Recruiting 1-Methyl-d-Tryptophan in Treating Patients With Relapsed or Refractory Solid Tumors
Condition: Cancer
Interventions: Drug: 1-methyl-d-tryptophan;   Other: flow cytometry;   Other: fluorescence activated cell sorting;   Other: high performance liquid chromatography;   Other: immunohistochemistry staining method;   Other: laboratory biomarker analysis;   Other: pharmacological study
8 Completed
Has Results 		The Role of Serotonin in Hot Flashes After Breast Cancer
Condition: Breast Cancer
Interventions: Dietary Supplement: Acute tryptophan depletion;   Dietary Supplement: Half-strength tryptophan depletion (Control)
9 Recruiting IDO Inhibitor Study for Relapsed or Refractory Solid Tumors
Conditions: Breast Cancer;   Lung Cancer;   Melanoma;   Pancreatic Cancer;   Solid Tumors
Intervention: Drug: 1-methyl-D-tryptophan
10 Completed Tryptophan, Serotonin and Kynurenine in Septic Shock
Condition: Shock, Septic
Intervention:
11 Recruiting Tryptophan Metabolism in Kidney Disease
Condition: Chronic Kidney Disease
Intervention:
12 Completed Double Blind Study of Trp01 in Patients With Alzheimer's Disease
Condition: Alzheimer's Disease
Intervention: Drug: Tryptophan
13 Recruiting Investigating the Role of Serotonin in Emotional Processing Through the Use of Tryptophan Depletion
Condition: Healthy
Intervention:
14 Recruiting Effects of Tryptophan Depletion on Brain Processing of Emotions in Patients With Mood Disorders
Condition: Depressive Disorder, Major
Intervention:
15 Completed Serotonin Function During Depression
Conditions: Depression, Involutional;   Healthy
Intervention:
16 Completed Serotonin in Alcoholism
Conditions: Alcoholism;   Healthy
Intervention: Drug: FCWAY
17 Completed L-5-HTP-Related EMS
Condition: Eosinophilia-Myalgia Syndrome
Intervention:
18 Recruiting Genetic and Biochemical Markers of Interferon-Induced Depression.
Condition: Depression
Intervention: Drug: interferon-alpha
19 Completed Treatment of Obsessive-Compulsive Disorder
Condition: Obsessive-Compulsive Disorder
Interventions: Drug: Fluoxetine;   Drug: Olanzapine
20 Recruiting Disturbances of Kynurenine Pathway of Trytophan Metabolism in Schizophrenia: A Quantitative Reverse Transcription Polymerase Chain Reaction (RT-PCR) Study
Condition: Schizophrenia
Intervention: Procedure: Phlebotomy

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