Clinical Research Directory

Immunotherapy in High-risk Ductal Carcinoma in Situ (DCIS)

This is a study to investigate the change in the immune microenvironment of high risk ductal carcinoma in situ (DCIS) after short term exposure to immunotherapy.

Multimodal Imaging With FAPI-PET/MRI in Breast Carcinoma-In-Situ for Detection of Occult Invasive Cancer

DCIS (ductal carcinoma in situ) is a common pre-stage for breast cancer. The goal of this clinical trial is to learn if FAPI-PET/MRI (an imaging technique with a weakly radioactive drug) helps to diagnose hidden invasive breast cancer in participants with DCIS. The main question it aims to answer is: How good can FAPI-PET/MRI diagnose hidden invasive breast cancer in DCIS? Researchers will compare FAPI-PET/MRI results to tissue samples obtained from surgery treatment to see if the FAPI-PET/MRI images show invasive breast cancer certainly. Participants will * receive the radioactive drug and lie in an imaging device for 45 minutes including a break * visit the clinic once again for a checkup and test

Trial of Low Dose Tamoxifen in Women With Breast Intraepithelial Neoplasia - Long Term Follow-up

The aim of the study is to evaluate whether tamoxifen at a low dose of 5mg/d reduces in the long term the incidence of invasive breast cancer and ductal carcinoma in situ, DCIS (DIN 1c, 2, 3) of the breast, in woman operated for lobular intraepithelial neoplasia (LIN1, 2 and 3) or ER-positive ductal intraepithelial neoplasia (DIN 1b, DIN2, DIN3, 1a excluded) of the breast. To improve the risk-benefit ratio, the use of lower doses of the drug has been proposed. Biomarker trials revealed that 5 mg/d was noninferior to 20 mg/d in inhibiting proliferation of breast cancer and normal endometrial tissue. By contrast, the risk of endometrial cancer si dose-dependent, and the dose reduction can lead a substantial decrease. Morover a dose of 5 mg/day is associated with an overall decrease of the estrogenic activity of tamoxifen on insulin like growth factor (IGF-I), sex hormone-binding globulin (SHBG) and antithrombin-III, with a decrease of venous thromboembolic events. Moreover, tamoxifen exhibits a high tissue distribution, so that a dose of 5 mg/day attains at the breast tissue level a concentration 10 times higher than that needed to inhibit cell growth in vitro. A prospective cohort study also showed that 10 mg on alternate days halves recurrence of DCIS in postmenopausal women. It has been shown that the treatment of dysplasia or pre-cancer drives the reduction of the invasive neoplasms onset. This is a chemoprevention trial designed to validatate the low-dose Tamoxifen in women with diseases at high evolutionary risk. The demonstration of efficacy and safety of such a treatment for the prevention of the invasive breast cancer would lead improvements in term of survival and quality of life for the patients at increased risk.