Intensity-Modulated Radiation Therapy and Paclitaxel With or Without Pazopanib Hydrochloride in Treating Patients With Anaplastic Thyroid Cancer

Thyroid Gland Anaplastic Carcinoma Clinical Trial

Official title: A Randomized Phase II Study of Concurrent Intensity Modulated Radiation Therapy (IMRT), Paclitaxel and Pazopanib (NSC 737754)/Placebo, for the Treatment of Anaplastic Thyroid Cancer

Status Completed

Clinical Trial Summary

This randomized phase II trial studies the side effects and how well intensity-modulated radiation therapy (IMRT) and paclitaxel with or without pazopanib hydrochloride works in treating patients with anaplastic thyroid cancer. Specialized radiation therapy that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue. Drugs used in chemotherapy, such as paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Pazopanib hydrochloride may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. It is not yet known whether radiation therapy and paclitaxel are more effective when given with pazopanib hydrochloride in treating thyroid cancer.

Clinical Trial Description

PRIMARY OBJECTIVES: I. To evaluate the safety of IMRT, paclitaxel, and pazopanib (pazopanib hydrochloride) suspension. (Run-in component) II. To evaluate and compare overall survival at 1 year from study registration. (Phase II component) SECONDARY OBJECTIVES: I. To evaluate local-regional control at 6 and 12 months. (Phase II component) II. To evaluate the rate of grade 4 (Common Terminology Criteria for Adverse Events version 4.0 [CTCAE, v. 4.0]) hemorrhage, grade 4 febrile neutropenia, or any grade 5 adverse event assessed to be definitely, probably, or possibly related to the induction or concurrent treatment components of the protocol regimen. (Phase II component) III. To evaluate the rates of other adverse events (CTCAE, v. 4.0) assessed to be definitely, probably, or possibly related to the induction or concurrent treatment components of the protocol regimen. (Phase II component) IV. To evaluate the rate of treatment discontinuation due to toxicity during the induction or concurrent treatment components of the protocol regimen. (Phase II component) V. To evaluate response (as per Response Evaluation Criteria in Solid Tumors [RECIST]) of the primary site following the treatment component in subjects with measurable disease prior to chemoradiation. (Phase II component) OUTLINE: RUN-IN COMPONENT: Patients receive paclitaxel intravenously (IV) over 1 hour once weekly and pazopanib hydrochloride orally (PO) once daily (QD) for 2-3 weeks. Patients then receive concurrent paclitaxel IV over 1 hour once weekly and pazopanib hydrochloride PO QD for 6-7 weeks (or until radiation treatment is completed) and intensity-modulated radiotherapy (IMRT) 5 days per week for 6.5 weeks (total of 66 Gy in 33 fractions). Beginning 25-31 days after the completion of IMRT, patients receive paclitaxel IV over 1 hour once weekly and pazopanib hydrochloride PO QD. Treatment repeats every 3 weeks for 4 cycles (for patients with no measurable disease) or continues in the absence of disease progression or unacceptable toxicity (for patients with measurable disease). RANDOMIZED PHASE II COMPONENT: Patients are randomized to 1 of 2 treatment arms. ARM I: Patients receive paclitaxel IV over 1 hour once weekly and pazopanib hydrochloride PO QD for 2-3 weeks. Patients then receive concurrent paclitaxel IV over 1 hour once weekly and pazopanib hydrochloride PO QD for 6-7 weeks (or until radiation treatment is completed) and IMRT 5 days per week for 6.5 weeks (total of 66 Gy in 33 fractions). Beginning 25-31 days after the completion of IMRT, patients receive paclitaxel IV over 1 hour once weekly and pazopanib hydrochloride PO QD. Treatment repeats every 3 weeks for 4 cycles (for patients with no measurable disease) or continues in the absence of disease progression or unacceptable toxicity (for patients with measurable disease). ARM II: Patients receive paclitaxel IV over 1 hour once weekly and placebo PO QD for 2-3 weeks. Patients then receive concurrent paclitaxel IV over 1 hour once weekly and placebo PO QD for 6-7 weeks (or until radiation treatment is completed) and IMRT 5 days per week for 6.5 weeks (total of 66 Gy in 33 fractions). Beginning 25-31 days after the completion of IMRT, patients receive paclitaxel IV over 1 hour once weekly and placebo PO QD. Treatment repeats every 3 weeks for 4 cycles (for patients with no measurable disease) or continues in the absence of disease progression or unacceptable toxicity (for patients with measurable disease). After completion of study treatment, patients are followed up every 3 months for 2 years, every 6 months for 1 year, and then annually thereafter. ;

Related Conditions & MeSH terms

• Carcinoma
• Thyroid Carcinoma, Anaplastic
• Thyroid Diseases
• Thyroid Gland Anaplastic Carcinoma
• Thyroid Neoplasms

• NCT number: NCT01236547
• Study type: Interventional
• Source: National Cancer Institute (NCI)
• Status: Completed
• Phase: Phase 2
• Start date: October 28, 2010
• Completion date: May 20, 2022