Track topics on Twitter Track topics that are important to you
- Pazopanib, a drug that inhibits the growth of new blood vessels in tumors, was recently approved by the Food and Drug Administration to treat advanced kidney cancer in adults. Pazopanib has been used in only a small number of adults, and more research is needed on whether it is safe and effective to use in children. Researchers are interested in determining safe and effective treatment doses of pazopanib in children, and in other studies will examine which form of pazopanib treatment (tablet or liquid) is most effective and well tolerated.
- To determine a safe and effective dose of pazopanib to treat solid tumors in children.
- To study the effects of pazopanib on blood cells, blood flow, and human development.
- Children, adolescents, and young adults between 1 and 21 years of age who have been diagnosed with solid tumors that have not responded to treatment.
- Eligible participants will be screened with a physical examination, blood and tumor samples, and imaging studies.
- Participants will receive pazopanib tablets for 28-day cycles of treatment. Pazopanib should be taken on an empty stomach, at least 1hour before or 2 hours after a meal. Participants may receive pazopanib for up to 24 cycles unless the tumor does not respond or participants develop serious side effects.
- Blood samples will be taken on days 1, 15, 22, and 27 of the first cycle of pazopanib, with additional samples taken every 8 weeks during subsequent cycles.
- An optional part of the study will collect additional blood samples at regular intervals for 24 hours after the first dose of pazopanib and at regular intervals after another dose during the second or third week of the first treatment cycle.
- Pazopanib is a potent and selective multi-target receptor tyrosine kinase inhibitor of vascular endothelial growth factor (VEGF) receptors (VEGFR)-1, -2, and -3, c-kit and platelet derived growth factor (PDGF) receptors-alpha and -beta.
- Preclinical experiments demonstrate that pazopanib causes significant and dose-dependent inhibitory effects on cell proliferation and inhibition of VEGF-induced VEGFR-2 phosphorylation, growth inhibition of a variety of human tumor xenografts in mice, and inhibition of basic fibroblast growth factor-(bFGF) and VEGF-induced angiogenesis in murine models.
- Pazopanib has been evaluated in adult subjects with solid tumors in Phase I and II studies, and objective anti-tumor activity has been observed in a variety of tumor types.
- To estimate maximum tolerated dose (MTD) and/or recommended Phase II dose of oral pazopanib administered on a once daily schedule to children with refractory solid tumors.
- To define the toxicities of oral pazopanib administered as either a tablet or suspension.
- To characterize the pharmacokinetics of oral pazopanib in children with refractory solid tumors.
- To preliminarily define the antitumor and biologic activity of oral pazopanib, and to explore the changes in tumor vascular permeability following initiation of pazopanib.
- To preliminarily assess VEGF haplotype/phenotype relationships in children with cancer.
- To explore pazopanib concentration-effect relationships with biomarkers and with clinical outcomes.
- Patients > 12 months and less than or equal to 21 years of age with:
- Part 1 and 2a: Measureable or evaluable relapsed or refractory solid tumors including CNS tumors with histologic verification except in patients with intrinsic brain stem tumors, optic pathway gliomas, or patients with pineal tumors and elevation of tumor markers.
- Part 2b: Histologically verified relapsed or refractory soft tissue sarcoma with measurable disease (greater than or equal to 2 cm) in the head, neck, extremity or fixed within the abdomen or pelvis.
- Performance score: Karnofsky greater than or equal to 50% for patients 16 years of age; Lansky greater than or equal to 50 for patients less than or equal to 16 years of age.
- Must have fully recovered from acute toxic effects from all prior therapy which have been completed within the specified prior time frame. Have adequate organ function as determined by laboratory evaluation.
- This is a rolling six phase I trial design of pazopanib administered orally once daily continuously on a 28 day cycle.
- Therapy may continue for up to 24 cycles in the absence of progressive disease or unacceptable toxicity.
- Part 1 is the phase I dose escalation portion. Once the MTD or phase II recommended dose is defined, up to 12 additional patients will enroll in Part 2a to obtain safety and pharmacokinetic data for the suspension formulation. In addition, up to 10 patients with recurrent/refractory soft tissue sarcoma and a measurable lesion will be enrolled in Part 2b at the MTD or recommended Phase II dose to further explore changes in tumor vascular permeability using dynamic contrast enhanced MRI.
- Participation in correlative biology studies or pharmacokinetic studies will be optional in Part 1; pharmacokinetic studies will be required in Part 2a; and imaging and limited pharmacokinetic sampling will be required in Part 2b.
Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
National Institutes of Health Clinical Center, 9000 Rockville Pike
National Institutes of Health Clinical Center (CC)
Published on BioPortfolio: 2014-08-27T03:13:26-0400
The double blind part of the study is being conducted to compare the efficacy and safety of pazopanib in combination with lapatinib with that of lapatinib alone in subjects with inflammato...
RATIONALE: GW786034 may stop the growth of tumor cells by blocking the enzymes necessary for tumor cell growth and by stopping blood flow to the tumor. PURPOSE: This phase I trial is stud...
The purpose of this study is to find out what effects, good or bad, pazopanib (GW786034), National Service Center (NSC) # 737754, has on children, adolescents and young adults between 12 m...
Based on the results from the Phase 1 study of pazopanib combined with paclitaxel and the activity of paclitaxel in urothelial cancer, testing this regimen in a disease where there is an u...
This is a two-period study to evaluate the effect of repeat oral dosing of ketoconazole on the pharmacokinetics of single dose pazopanib administered as an eye drop
As pazopanib plasma trough concentrations are correlated with treatment outcome, we explored whether single nucleotide polymorphisms in the elimination pathway of pazopanib affect systemic pazopanib c...
The tyrosine kinase inhibitor pazopanib is used for treatment of sarcoma. Recent studies have suggested that the use of pazopanib may lead to the development of pneumothorax, an unexpected adverse eff...
1. To elucidate the metabolism of pazopanib, a metabolomics approach was performed based on ultra-performance liquid chromatography coupled with electrospray ionization quadrupole mass spectrometry. 2...
Purpose Sunitinib and pazopanib are multitargeted tyrosine kinase inhibitors (TKIs) that act against vascular endothelial growth factor receptors and are standard first-line treatment options for meta...
The development of new targeted therapies in kidney cancer has shaped disease management in the metastatic phase. Our study aims to conduct a cost-utility analysis of sunitinib versus pazopanib in fir...
An experimental sarcoma of mice.
An experimental sarcoma of mice.
An experimental sarcoma of rats.
Experimentally induced neoplasms of CONNECTIVE TISSUE in animals to provide a model for studying human SARCOMA.
A family of transforming proteins isolated from retroviruses such as MOUSE SARCOMA VIRUSES. They are viral-derived members of the raf-kinase family of serine-theonine kinases.
Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...
Nephrology - kidney function
Nephrology is a specialty of medicine and pediatrics that concerns itself with the study of normal kidney function, kidney problems, the treatment of kidney problems and renal replacement therapy (dialysis and kidney transplantation). Systemic conditions...