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This is a dosage escalation study to estimate the maximum tolerated dose of 9-cis-retinoic acid given in combination with tamoxifen. Groups of 3 to 6 patients receive oral 9-cis-retinoic acid daily for 4 weeks, after which daily oral tamoxifen is added to the regimen. Patients continue treatment for up to 28 weeks, with tamoxifen continued after the study if medically appropriate.
This is a Phase I study of the combination tamoxifen and 9-cis-Retinoic acid in patients with breast cancer. The primary objective of the study is; 1) to determine the maximum tolerated dose of 9-cis-Retinoic acid in combination with Tamoxifen and to determine the overall and dose limiting toxicities. Other objectives are: 2) to determine the effect of Tamoxifen on the pharmacokinetics of 9-cis-Retinoic acid; 3) to evaluate the anti-tumor activity of this combination therapy within the context of a phase I study; 4) and to determine the expression of surrogate biomarkers of breast carcinogenesis before and after treatment.
Endpoint Classification: Safety Study, Primary Purpose: Treatment
National Cancer Institute (NCI)
National Institutes of Health Clinical Center (CC)
Published on BioPortfolio: 2014-08-27T03:59:34-0400
This is an Italian, single center, randomized, phase II study. ATRA (all-trans retinoic acid) and derivatives (retinoids) are promising anticancer agents and exert their anti-proliferative...
Men with infertility and normal hormone levels have few options for fertility treatment. Previous research suggests that men with infertility may have low levels of the active form of Vita...
To conduct feasibility studies on the use of retinoids in the treatment of emphysema. Specific objectives are to identify optimal patient populations, retinoids, doses, dosing schedules, r...
The purpose of this study is to find out what effects, good and/or bad, the combination of 3F8 and GM-CSF has on the patient and the cancer.
The goal of this clinical research study is to find the highest safe dose of the drug ZactimaTM (ZD6474) in patients with neuroblastoma or medulloblastoma that has gotten worse, has come b...
All-trans-retinoic-acid (ATRA) is a promising agent in the prevention/treatment of breast-cancer. There is growing evidence that reprogramming of cellular lipid metabolism contributes to malignant tra...
The reported maximum tolerated dose (MTD) of single-agent belinostat is 1000 mg/m given days 1-5, every 21 days. Pre-clinical evidence suggests histone deacetylase inhibitors enhance retinoic acid s...
Increase in breast cancer survivorship, advancements in diagnostic imaging and standardization of contralateral breast screening before breast cancer surgery have resulted in increased detection of co...
The incidence of breast cancer is increasing year by year, and the pathogenesis is still unclear. Studies have shown that the high metabolism of solid tumours leads to an increase in hypoxia, glycolys...
Although survival rates for patients with localized breast cancer have increased, patients with metastatic breast cancer still have poor prognosis. Understanding key factors involved in promoting brea...
Proteins in the nucleus or cytoplasm that specifically bind RETINOIC ACID or RETINOL and trigger changes in the behavior of cells. Retinoic acid receptors, like steroid receptors, are ligand-activated transcription regulators. Several types have been recognized.
Abnormal accumulation of lymph in the arm, shoulder and breast area associated with surgical or radiation breast cancer treatments (e.g., MASTECTOMY).
A cytochrome P450 enzyme that resides in the ENDOPLASMIC RETICULUM. It catalyzes the conversion of trans-RETINOIC ACID to 4-hydroxyretinoic acid.
Metastatic breast cancer characterized by EDEMA and ERYTHEMA of the affected breast due to LYMPHATIC METASTASIS and eventual obstruction of LYMPHATIC VESSELS by the cancer cells.
A subtype of RETINOIC ACID RECEPTORS that are specific for 9-cis-retinoic acid which function as nuclear TRANSCRIPTION FACTORS that regulate multiple signalling pathways.
In a clinical trial or interventional study, participants receive specific interventions according to the research plan or protocol created by the investigators. These interventions may be medical products, such as drugs or devices; procedures; or change...
Track and monitor developments in breast cancer research and commercial development. Follow the tabs above to read the latest global news, research, clinical trials on breast cancer and follow companies active in the development of breast cancer tr...