(HealthDay News) -- Here are the latest clinical trials, courtesy of Thomson CenterWatch:
Thyroid Cancer
If you are 18 years or older and have thyroid cancer, you may be eligible to participate in a research study on a new treatment.
You will not be eligible if you have had surgery or chemotherapy in the past four weeks, or have been treated previously with ZD6474.
The research site is in Charleston, S.C.
More information
Please see http://www.centerwatch.com/patient/studies/cat641.html 
.
-----
Seizure Disorders
If you are between 16 and 70 years old and have focal epilepsy, you may be eligible to take part in a research study on seizure disorders.
You may not participate if you have progressive CNS disorder or another serious uncontrolled disease.
The research site is in Newport Beach, Calif.
More information
Please see http://www.centerwatch.com/patient/studies/cat138.html .
-----
Insomnia
If you have difficulty falling asleep or are impaired in important areas of daily functioning as a result of sleeplessness, you may be eligible to participate in an insomnia research study.
Participants will receive study-related medical care, including health assessments and study medication.
The research site is in Clearwater, Fla.
More information
Please see http://www.centerwatch.com/patient/studies/cat189.1.html .
-----
Copyright 2007 Thomson CenterWatch . All rights reserved.
Copyright © 2007 ScoutNews, LLC. All rights reserved. 
HealthDayNews articles are derived from various sources and do not reflect federal policy. healthfinder.gov does not endorse opinions, products, or services that may appear in news stories. For more information on health topics in the news, visit the healthfinder.gov health library.