Obesity Clinical Trial - Melatonin Metabolism Abnormality in Patients With

Status Active, not recruiting

Clinical Trial Summary

Atypical antipsychotic medications, such as olanzapine, cause metabolic side effects, including weight gain, extra fat around the middle of the body, high blood sugar, and high cholesterol. One of the mechanisms by which these medications may cause these effects is by reducing plasma melatonin. This study is a pilot project to evaluate 1) the effect of olanzapine on melatonin secretion levels and 2) the effect of melatonin on olanzapine-induced changes in melatonin secretion in patients with schizophrenia, schizoaffective, or bipolar disorder.

Clinical Trial Description

To investigate the relationship between olanzapine, melatonin, and metabolic functioning, this pilot study is evaluating 20 patients with schizophrenia, schizoaffective disorder, or bipolar disorder over 15 weeks under three experimental conditions: 1) baseline (two weeks treatment with already established antipsychotic medication other than olanzapine or clozapine), 2) six weeks treatment with olanzapine only, and 3) six weeks treatment with olanzapine and melatonin. Half of the patients will receive 0.3 mg of oral melatonin and half will receive 3.0 mg of melatonin. Nocturnal melatonin production, as estimated by assay of urinary 6-sulfatoxymelatonin(aMT6s) adjusted for creatinine, will be measured weekly. In addition, weekly measurements of weight and other metabolic indices, including waist and hip measurements, fasting glucose, serum insulin, cholesterol, triglycerides, and leptin will be taken. It is anticipated that there will be an olanzapine-induced decrease in melatonin production. Furthermore, it is expected that the decrease in melatonin production associated with olanzapine treatment will be reversed by administration of melatonin with olanzapine. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00512070
Study type	Interventional
Source	Seattle Institute for Biomedical and Clinical Research
Contact
Status	Active, not recruiting
Phase	N/A
Start date	July 2007
Completion date	December 2025

View Details

See also
Status	Clinical Trial	Phase
Recruiting	`NCT04243317` - Feasibility of a Sleep Improvement Intervention for Weight Loss and Its Maintenance in Sleep Impaired Obese Adults	N/A
Recruiting	`NCT04101669` - EndoBarrier System Pivotal Trial(Rev E v2)	N/A
Terminated	`NCT03772886` - Reducing Cesarean Delivery Rate in Obese Patients Using the Peanut Ball	N/A
Completed	`NCT03640442` - Modified Ramped Position for Intubation of Obese Females.	N/A
Completed	`NCT04506996` - Monday-Focused Tailored Rapid Interactive Mobile Messaging for Weight Management 2	N/A
Recruiting	`NCT06019832` - Analysis of Stem and Non-Stem Tibial Component	N/A
Active, not recruiting	`NCT05891834` - Study of INV-202 in Patients With Obesity and Metabolic Syndrome	Phase 2
Active, not recruiting	`NCT05275959` - Beijing (Peking)---Myopia and Obesity Comorbidity Intervention (BMOCI)	N/A
Recruiting	`NCT04575194` - Study of the Cardiometabolic Effects of Obesity Pharmacotherapy	Phase 4
Completed	`NCT04513769` - Nutritious Eating With Soul at Rare Variety Cafe	N/A
Withdrawn	`NCT03042897` - Exercise and Diet Intervention in Promoting Weight Loss in Obese Patients With Stage I Endometrial Cancer	N/A
Completed	`NCT03644524` - Heat Therapy and Cardiometabolic Health in Obese Women	N/A
Recruiting	`NCT05917873` - Metabolic Effects of Four-week Lactate-ketone Ester Supplementation	N/A
Active, not recruiting	`NCT04353258` - Research Intervention to Support Healthy Eating and Exercise	N/A
Completed	`NCT04507867` - Effect of a NSS to Reduce Complications in Patients With Covid-19 and Comorbidities in Stage III	N/A
Recruiting	`NCT03227575` - Effects of Brisk Walking and Regular Intensity Exercise Interventions on Glycemic Control	N/A
Completed	`NCT01870947` - Assisted Exercise in Obese Endometrial Cancer Patients	N/A
Recruiting	`NCT06007404` - Understanding Metabolism and Inflammation Risks for Diabetes in Adolescents
Recruiting	`NCT05972564` - The Effect of SGLT2 Inhibition on Adipose Inflammation and Endothelial Function	Phase 1/Phase 2
Recruiting	`NCT05371496` - Cardiac and Metabolic Effects of Semaglutide in Heart Failure With Preserved Ejection Fraction	Phase 2

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Melatonin Metabolism Abnormality in Patients With Schizophrenia or Schizoaffective Disorder Treated With Olanzapine

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms