Study of XL184 (Cabozantinib) in Adults With Advanced Malignancies

Summary

The purpose of this study is to determine the best and safest dose of XL184 administered orally. XL184 is a new chemical entity that inhibits VEGFR2, MET and RET, kinases implicated in tumor formation, growth and migration. To determine the highest safe dose, subjects will receive different amounts of the drug. The first group of subjects will receive the lowest dose of XL184. As long as no medically unacceptable side effects are noted, the dose will be increased for the next group. When the maximum tolerated dose (MTD) is reached, at least 20 subjects with Medullary Thyroid Cancer (MTC) will be enrolled to evaluate the effect of XL184 in this population.

Timeline

Start

2005-09

Primary completion

2011-04

Completion

2012-07

Publications

• Kurzrock R, Atkins J, Wheler J, Fu S, Naing A, Busaidy N, Hong D, Sherman S. Tumor marker and measurement fluctuations may not reflect treatment efficacy in patients with medullary thyroid carcinoma on long-term RET inhibitor therapy. Ann Oncol. 2013 Sep;24(9):2256-61. doi: 10.1093/annonc/mdt177. Epub 2013 May 14.
• Kim KB, Cabanillas ME, Lazar AJ, Williams MD, Sanders DL, Ilagan JL, Nolop K, Lee RJ, Sherman SI. Clinical responses to vemurafenib in patients with metastatic papillary thyroid cancer harboring BRAF(V600E) mutation. Thyroid. 2013 Oct;23(10):1277-83. doi: 10.1089/thy.2013.0057. Epub 2013 Jul 17.
• Kurzrock R, Sherman SI, Ball DW, Forastiere AA, Cohen RB, Mehra R, Pfister DG, Cohen EE, Janisch L, Nauling F, Hong DS, Ng CS, Ye L, Gagel RF, Frye J, Muller T, Ratain MJ, Salgia R. Activity of XL184 (Cabozantinib), an oral tyrosine kinase inhibitor, in patients with medullary thyroid cancer. J Clin Oncol. 2011 Jul 1;29(19):2660-6. doi: 10.1200/JCO.2010.32.4145. Epub 2011 May 23.

Drugs

Indications