Clinical Trial: Vandetanib to Treat Children and Adolescents With Medullary Thyroid Cancer
Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Interventional
Official Title: Phase I/II Trial of Vandetanib (ZD6474, ZACTIMA) in Children and Adolescents With Hereditary Medullary Thyroid Carcinoma
Brief Summary:
Background:
- Medullary thyroid carcinoma (MTC) is common in people with a genetic disorder called multiple endocrine neoplasia (MEN).
- Vandetanib is an experimental drug that blocks a defective protein receptor (RET receptor) found on the surface of cancer cells in people with MEN. It is thought that this protein is a primary cause of MTC in people with MEN.
Objectives:
- To study the activity of Vandetanib in children and adolescents with MEN-related MTC by measuring the change in tumor size, in blood levels of proteins produced the tumor (calcitonin and CEA) and in tumor-related diarrhea.
- To determine the safety and tolerability of Vandetanib in children and adolescents.
- To study how the body handles Vandetanib in children and adolescents.
- To determine the effect of Vandetanib on the survival of children and adolescents with MTC.
Eligibility:
-Children and adolescents 5 to 18 years of age with MTC whose tumor cannot be surgically removed or has grown back after treatment or has metastasized (spread beyond the thyroid gland).
Design:
- Patients take Vandetanib once a day in 28-day cycles. The first patients enrolled in the study are started on a low dose of Vandetanib to determine tolerability.
- Patients have periodic blood tests, electrocardiograms, and blood pressure measurements to look for side effec