View clinical trials related to Metastatic Breast Cancer.
Filter by:Before anti-estrogens such as tamoxifen were developed to treat estrogen receptor (ER)-positive breast cancer, high-dose estrogen therapies were used. This seems counterintuitive since anti-estrogens block ER function, while estrogens increase ER function, but these therapies are effective to similar extents for the treatment of metastatic ER+ breast cancer. Estrogen therapies are most effective against cancers that develop resistance to anti-estrogens, likely because such cancers have adapted to grow without ER function, and restoring ER function (with estrogen) is damaging to the cancer cells. In some patients with ER+ breast cancer that becomes resistant to anti-estrogens, treatment with the estrogen 17B-estradiol induces tumor response. Furthermore, when 17B-estradiol-sensitive tumors eventually become resistant to 17B-estradiol, switching back to anti-estrogen therapy is often effective. These observations suggest that cancers can alternate between anti-estrogen-sensitive and 17B-estradiol-sensitive states. The investigators hypothesize that treatment with alternating 17B-estradiol / anti-estrogen therapies on a defined 8-week / 16-week schedule will more effectively prevent cancer growth than continuous treatment with either type of therapy in patients with metastatic anti-estrogen-resistant ER+ breast cancer.
The purpose of this study is to determine whether biomarkers could be found to gain more insight in tumor characteristics in order to predict which patients will have a high chance of a long progression-free survival. Postmenopausal patients with advanced metastatic breast cancer who have progressed on anastrozole or letrozole will be eligible for this study.
The aim of the trial is to test the hypothesis that the benefit of denosumab is maintained if administered only every 12 weeks as compared to every 4 weeks.
Current patient work-up, including conventional imaging and pathological assessment of just one single biopsy, might be insufficient to identify metastatic breast cancer patients, who possibly benefit from first-line anti-hormonal or anti-HER2 therapy. As receptor conversion of the tumor is found quite frequently and molecular heterogeneity can occur within one patient, up-to-date whole body information is necessary to determine estrogen receptor (ER) and/or human epidermal growth factor receptor 2 (HER2) receptor status and subsequently guide therapy decision. With molecular imaging via PET this information can be obtained in a non-invasive, patient friendly way. Furthermore, to improve and individualize treatment and be able to identify (new) drug targets and biomarkers, sampling of venous blood, circulating tumor cells (CTC), as well as circulating tumor DNA, microRNA (miRNA) and molecular characterization of one metastasis at the beginning and, if feasible, of an additional biopsy during therapy, is necessary.
It is a phase II trial to explore the efficacy and safety of cisplatin plus capecitabine in anthracycline and taxane-pretreated metastatic triple negative breast cancer patients.
The purpose of this study is to determine how well a new MRI technique called "High resolution 3D diffusion-weighted breast MRI" detects breast cancer.
By doing this study, researchers hope to learn the effectiveness of the combination of Lapatinib and RAD-001 for treating patients who have progressed on previous therapies.
Fulvestrant is an ER antagonist with no agonist effects, which binds, blocks and degrades the ER. Fulvestrant is comparable to third-generation aromatase inhibitors in terms of efficacy and tolerability for patients who have progressed on prior tamoxifen therapy and past studies have found all three-third-generation AIs to be at least as good as tamoxifen in first-line metastatic therapy in postmenopausal women. Fulvestrant has been studied little in premenopausal women despite of its attractive mechanism of actions. The clinical effectiveness of fulvestrant as a treatment for advanced breast cancer has previously been demonstrated at the standard dose (AD; 250 mg/mo) in several phase III clinical trials in postmenopausal women. However, there is evidence to suggest that doses of fulvestrant higher than 250 mg may have greater pharmacodynamic activity against the ER pathway. Moreover, dose-dependent clinical activity has been observed for fulvestrant. The activity of a fulvestrant high-dose (HD; 500 mg/mo) regimen has been investigated in two recent studies. A pilot Japanese study showed fulvestrant HD to have clinical activity in the treatment of advanced or recurrent breast cancer, to be well tolerated, and to result in plasma levels approximately double those seen with fulvestrant low-dose. Subsequently, a neoadjuvant study comparing fulvestrant low-dose and high-dose reported that significantly greater Ki67 and ER downregulation was achieved with the high-dose compared with the low-dose regimen and that both doses were well tolerated. A recent randomized trial also showed superior outcome of high-dose fulvestrant than AI. Based on this rationale, we introduced high-dose fulvestrant with LHRH agonist as a randomized trial comparing with AI plus LHRH agonist and LHRH alone in premenopausal metastatic breast cancer patients who failed to tamoxifen treatment.
This study is a Phase I/II trial of a novel Indibulin dosing schedule for the treatment of metastatic breast cancer. Eligible patients will have measurable or non-measurable, metastatic or unresectable, locally advanced breast cancer and may have received any number of prior therapies for their disease. It is expected that the Phase I portion will enroll up to 20 patients and the Phase II portion will enroll up to 45 patients.
The purpose of the study is to to demonstrate equivalence