Metastatic Breast Cancer Clinical Trial
Official title:
A Phase 1b Study to Assess the Safety, Feasibility, Pharmacokinetics, and Activity of PTC299 Monotherapy or Combination Therapy With Hormonal Agents in Patients With Metastatic Breast Cancer
Verified date | April 2012 |
Source | PTC Therapeutics |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
Formation of new blood vessels (angiogenesis) is important for tumor growth in metastatic breast cancer. It is known that tumors make a protein called vascular endothelial growth factor (VEGF) and there are higher levels of VEGF in the tumors and blood of many women with metastatic breast cancer. VEGF stimulates the formation of blood vessels that supply the tumor with nutrients and oxygen. PTC299 is an oral drug that has been shown to decrease production of VEGF in animal models of human cancer. In these animal models, oral PTC299 administration decreases VEGF levels in the tumor and in the bloodstream, decreases blood vessel numbers in the tumor, and significantly slows or halts tumor growth. Safety studies in research animals indicate good tolerability at doses and drug levels that are higher than those planned for the clinical studies. Results from Phase 1a studies in healthy volunteers indicate that PTC299 achieves levels of PTC299 in the bloodstream that are known to be active in animal models of human cancer. This Phase 1b study is designed to test the hypothesis that PTC299 will be tolerable and will show evidence of VEGF reduction and antitumor activity when administered orally in combination with anastrozole (Arimidex®), letrozole (Femara®), or exemestane (Aromasin®) to women with metastatic breast cancer.
Status | Completed |
Enrollment | 33 |
Est. completion date | March 2012 |
Est. primary completion date | March 2012 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years and older |
Eligibility |
Major Eligibility Criteria: 1. Female sex. 2. Age =18 years. 3. Body weight 40-100 kg. 4. ECOG performance status of 0 or 1. 5. Histologically or cytologically confirmed adenocarcinoma of the breast. 6. Presence of metastatic disease not amenable to surgery, radiation therapy, or chemoradiotherapy with curative intent. 7. No active second metastatic malignancy other than breast cancer. 8. No unstable brain or leptomeningeal disease. 9. Discontinuation of other therapies (except for anastrozole, letrozole, or exemestane) for the treatment of breast cancer and resolution of any acute toxic effects of prior therapies. 10. Adequate bone marrow, liver, and kidney function. 11. No uncontrolled hypertension, major bleeding, HIV infection or recent acute cardiovascular event. 12. If sexually active and not postmenopausal or surgically sterile, willingness to abstain from sexual intercourse or employ an effective barrier method of contraception during the study drug administration and follow-up periods. 13. No pregnancy or breast-feeding. 14. Willingness and ability to comply with scheduled visits, drug administration plan, laboratory tests, other study procedures, and study restrictions. 15. Willingness to provide informed consent. In addition to the criteria noted above, Stage 2 subjects must also have natural or induced suppression of ovarian function to post-menopausal levels and be receiving or be a candidate for hormonal therapy. |
Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Indiana University Simon Cancer Center | Indianapolis | Indiana |
United States | Memorial Sloan-Kettering Cancer Center | New York | New York |
United States | New York University Clinical Cancer Center | New York | New York |
Lead Sponsor | Collaborator |
---|---|
PTC Therapeutics | United States Department of Defense |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Maximum Tolerated Dose (MTD) within the tested dose range. | 6 Weeks | Yes | |
Secondary | Overall safety profile | 6 Weeks | Yes | |
Secondary | Study drug compliance | 6 Weeks | No | |
Secondary | Pharmacokinetics | 6 Weeks | No | |
Secondary | Circulating angiogenic markers | 6 Weeks | No | |
Secondary | Tumor perfusion as assessed by dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) | 6 Weeks | No | |
Secondary | Tumor metabolism as assessed by fluorodeoxyglucose positron emission tomography (FDG-PET) | 6 Weeks | No | |
Secondary | Antitumor activity as assessed by computed tomography (CT) scans and tumor markers | 6 Weeks | No |
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