Safety and Efficacy Study of GC1008 to Treat Renal Cell Carcinoma or Malignant Melanoma
The purpose of this study is to determine the safety, tolerability, pharmacokinetics and pharmacodynamics of GC1008, a human anti-transforming growth factor-beta (TGFβ) monoclonal antibody in previously treated patients with locally advanced or metastatic renal cell carcinoma or malignant melanoma.
Transforming growth factor-beta (TGFβ) is a cytokine which is often over-expressed and over-produced by malignancies and has been implicated as an important factor in promoting the growth, progression, and metastatic potential of advanced cancers. In preclinical studies, TGFβ can act to promote tumor cell migration/invasiveness, influence tumor stroma (by increasing extracellular matrix production, cytokine secretion, and angiogenesis), and suppress anti-tumor immunity. The purpose of this study is to investigate the clinical use of GC1008, a human monoclonal antibody capable of binding and neutralizing all isoforms of TGFβ.
This is a Phase 1 multi-center, open-label, dose-escalation study designed to characterize the safety, tolerability, pharmacokinetic, pharmacodynamic, and potential anti-tumor activity of GC1008, in patients with histologically confirmed, locally advanced and surgically inoperable or metastatic renal cell carcinoma (RCC) or malignant melanoma. Patients with RCC must have failed at least 1 prior therapy and patients with renal cell carcinoma must have failed either sorafenib or sunitinib. Other qualifying prior therapies includes any medical, surgical, radiation or investigational approaches used for potential therapeutic benefit (but not for diagnostic purposes) in patients with advanced disease. Patients may receive up to 4 intravenous infusions of GC1008, and patients with stable disease, with an objective tumor response or with clinical benefit may be eligible to receive extended therapy. For part 2 of the study, only patients with malignant melanoma will be enrolled.
Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Carcinoma, Renal Cell
GC1008 Human Anti Transforming Growth Factor _Beta (TGFβ) Monoclonal Antibody, GC1008 Human Anti Transforming Growth Factor _Beta (TGFβ) Monoclonal Antibody, GC1008 Human Anti Transforming Growth Factor _Beta (TGFβ) Monoclonal Antibody, GC1008 Human An
National Cancer Institute (NCI)
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00356460
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Receptors, Transforming Growth Factor Beta
Cell-surface proteins that bind transforming growth factor beta and trigger changes influencing the behavior of cells. Two types of transforming growth factor receptors have been recognized. They differ in affinity for different members of the transforming growth factor beta family and in cellular mechanisms of action.
Transforming Growth Factors
Hormonally active polypeptides that can induce the transformed phenotype when added to normal, non-transformed cells. They have been found in culture fluids from retrovirally transformed cells and in tumor-derived cells as well as in non-neoplastic sources. Their transforming activities are due to the simultaneous action of two otherwise unrelated factors, TRANSFORMING GROWTH FACTOR ALPHA and TRANSFORMING GROWTH FACTOR BETA.
Transforming Growth Factor Beta1
A subtype of transforming growth factor beta that is synthesized by a wide variety of cells. It is synthesized as a precursor molecule that is cleaved to form mature TGF-beta 1 and TGF-beta1 latency-associated peptide. The association of the cleavage products results in the formation a latent protein which must be activated to bind its receptor. Defects in the gene that encodes TGF-beta1 are the cause of CAMURATI-ENGELMANN SYNDROME.
Tgf-beta Superfamily Proteins
A large family of cell regulatory proteins which are structurally related to TRANSFORMING GROWTH FACTOR BETA. The superfamily is subdivided into at least three related protein families: BONE MORPHOGENETIC PROTEINS; GROWTH DIFFERENTIATION FACTORS; and TRANSFORMING GROWTH FACTORS.
Transforming Growth Factor Beta
A factor synthesized in a wide variety of tissues. It acts synergistically with TGF-alpha in inducing phenotypic transformation and can also act as a negative autocrine growth factor. TGF-beta has a potential role in embryonal development, cellular differentiation, hormone secretion, and immune function. TGF-beta is found mostly as homodimer forms of separate gene products TGF-beta1, TGF-beta2 or TGF-beta3. Heterodimers composed of TGF-beta1 and 2 (TGF-beta1.2) or of TGF-beta2 and 3 (TGF-beta2.3) have been isolated. The TGF-beta proteins are synthesized as precursor proteins.
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