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Breast Neoplasms clinical trials

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NCT ID: NCT00324714 Withdrawn - Breast Cancer Clinical Trials

Risedronate in Improving Bone Mineral Density and Bone Health in Postmenopausal Women With Ductal Carcinoma In Situ Enrolled in Clinical Trial CRUK-IBIS-II-DCIS

Start date: February 2003
Phase: Phase 3
Study type: Interventional

RATIONALE: Bisphosphonates, such as risedronate, may help improve bone health and prevent osteoporosis in postmenopausal women. It is not yet known whether risedronate is effective in improving bone mineral density and bone health in women with ductal carcinoma in situ. PURPOSE: This randomized phase III trial is studying risedronate to see how well it works compared to a placebo in improving bone mineral density and bone health in postmenopausal women with ductal carcinoma in situ enrolled in clinical trial CRUK-IBIS-II-DCIS (CRUK: Cancer Research UK) (DCIS: Ductal carcinoma in situ).

NCT ID: NCT00312637 Withdrawn - Breast Cancer Clinical Trials

Using Magnetic Resonance Spectroscopy With MRI to Non-invasively Determine Breast Cancer Extent of Disease

Start date: March 2005
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate whether high-resolution magnetic resonance imaging of the axilla with spectroscopy can identify nodal features suggestive of metastatic involvement in patients diagnosed with invasive breast cancer. This may enable us to define a select group of patients for whom axillary lymph node dissection could be avoided.

NCT ID: NCT00310882 Withdrawn - Breast Neoplasms Clinical Trials

Involvement of Endogenous Digitalis-like Compounds in Breast Cancer

Start date: May 2006
Phase: N/A
Study type: Observational

The endogenous digitalis-like compounds (DLC)are steroid hormones synthesized and released from the adrenal gland.They are integrated in the feed-back system of the Hypothalami-Pituitary-Adrenal gland axis.One of their remarkable function is to induce apoptosis in malignant cells. Recently, accumulating data point to the possibility of using synthetic DLC as new anti-cancer drugs. Less is known about the endogenous metabolism of these compounds in cancer patients. Proceeding from preliminary clinical data which demonstrated significantly reduced DLC plasma levels in breast cancer patients and from in vitro data which showed an impaired release of DLC towards stress stimuli in athymic nude mice,we put up the hypothesis that a latent adrenal insufficiency with low DLC levels facilitates the induction and progression of tumor diseases.

NCT ID: NCT00301886 Withdrawn - Breast Cancer Clinical Trials

S0308 Zoledronate or Ibandronate in Preventing Bone Problems in Women With Stage IV Breast Cancer That Has Spread to the Bone

Start date: May 2006
Phase: Phase 3
Study type: Interventional

RATIONALE: Zoledronate and ibandronate may prevent or help relieve bone pain and other symptoms caused by bone metastases. It is not yet known whether zoledronate is more effective than ibandronate in preventing bone problems caused by bone metastases due to breast cancer. PURPOSE: This randomized phase III trial is studying zoledronate to see how well it works compared to ibandronate in preventing bone problems in women with stage IV breast cancer that has spread to the bone.

NCT ID: NCT00252811 Withdrawn - Breast Cancer Clinical Trials

A Study of ZD1839 Effects on Cell Proliferation in Breast Cancer

Start date: February 2004
Phase: Phase 2
Study type: Interventional

This is a Phase II, randomised, double-blind, placebo-controlled study. Subjects with histologically-confirmed oestrogen receptor negative (ER-), progesterone receptor negative (PgR-) primary breast cancer breast cancer will be randomly assigned in a 2:1 ratio to receive ZD1839 250 mg once daily or matching placebo for a total period of 5 weeks. Surgical intervention will take place after 4 weeks (on Day 29) and treatment will continue for 1 week after surgery.

NCT ID: NCT00227474 Withdrawn - Breast Cancer Clinical Trials

S0348 Vaccine Therapy in Treating Patients With Stage IIIB or Stage IV Breast Cancer in Remission

Start date: n/a
Phase: Phase 2
Study type: Interventional

RATIONALE: Vaccines made from a gene-modified virus may help the body build an effective immune response to kill tumor cells. Giving booster vaccinations may make a stronger immune response and prevent or delay the recurrence of cancer. PURPOSE: This phase II trial is studying how well vaccine therapy works in treating patients with stage IIIB or stage IV breast cancer in remission.

NCT ID: NCT00217659 Withdrawn - Breast Cancer Clinical Trials

S0511, Goserelin and Anastrozole in Treating Men With Recurrent or Metastatic Breast Cancer

Start date: September 2005
Phase: Phase 2
Study type: Interventional

RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using goserelin and anastrozole may fight breast cancer by blocking the use of estrogen by the tumor cells. Giving goserelin together with anastrozole may be an effective treatment for male breast cancer. PURPOSE: This phase II trial is studying how well giving goserelin together with anastrozole works in treating men with recurrent or metastatic breast cancer.

NCT ID: NCT00201487 Withdrawn - Breast Neoplasms Clinical Trials

Choline Quantification in Breast Cancer by MRS

Start date: November 2007
Phase: N/A
Study type: Observational

Choline has been found in increased concentration in breast cancer patients. Hypothesis: The choline signal as observed by MRS is sensitive to treatment, and a positive response to treatment will give a reduction in choline concentration. The purpose of this study is to establish methods for quantification of choline in breast cancer by MRS

NCT ID: NCT00184288 Withdrawn - Melanoma Clinical Trials

Proton MR Spectroscopy of Brain Metastases in Evaluation of Treatment Response.

Start date: November 2004
Phase: N/A
Study type: Observational

The aim of the study is to investigate the feasibility of in vivo single volume MR spectroscopy in evaluation of treatment response in patients with brain metastases, using 3T MR instrument. In order to optimize and avoid ineffective treatment of patients with brain metastases, in vivo MR spectroscopy can be an useful tool.

NCT ID: NCT00123812 Withdrawn - Breast Cancer Clinical Trials

Frequency of Portal Images Required to Enhance Quality Assurance for Breast Cancer Patients Treated With Radiotherapy

Start date: March 2004
Phase: N/A
Study type: Observational

Currently in Canada, and at the Cross Cancer Institute, the treatment of many women with breast cancer involves radiotherapy (RT). There is a complex process which takes place in order to plan the radiation therapy before patients commence their treatment. In many circumstances the investigators use computerized technology to assist in planning their treatment. This allows more precision in delivering the treatment to the desired areas and avoiding areas of normal tissue. Once the planning process is completed, the investigators then place marks with a marker pen on the skin of the patient to outline the area where the radiation will be delivered. The investigators confirm that the correct area is being treated with an x-ray taken on the treatment unit while the patient is in the treatment position. This is called a port film or verification film. The investigators then compare this to what they set up with the computerized data. If all the information matches, the patient is then treated for the full course of radiation, with the assumption that all treatments are given in the correct position. No further routine checking is done. The standard at some radiotherapy centers is that the patient treatment position is verified weekly by a portal film. At the Cross Cancer Institute the investigators normally only do it once at the beginning of treatment. No information is available to confirm the necessity of doing more frequent verification films, but in view of the very complex nature of the investigators' treatment delivery, it may be necessary to confirm the accuracy of their treatment more often. Over the course of a 4-5 week treatment the investigators know that some patients may lose weight, some become more relaxed after a few days, and some have trouble with the movement in their shoulders; all of these factors influence the positioning of the patient. Measurements taken on the treatment unit often change during the course of a patient's treatment, but no further verification is performed to ensure that the treated area is still what was initially intended. It is important from a quality assurance standpoint to see if more frequent checking of the radiation treatment set-up is indicated.