A research study about factors that might increase the chance of getting breast and ovarian cancers. Eligible: female 18-80 yr old; diagnosed with breast cancer under age 50; diagnosed with ovarian cancer at any age; strong family history of breast and/or ovarian cancer.

Adjuvant endocrine hormonal therapy (EHT) is highly effective and appropriate for nearly all breast cancer patients with hormone receptor-positive tumors, which represent 75% of all breast cancer diagnoses. Long-term use of EHT reduces cancer recurrence rates and cuts the risk of death nearly in half during the second decade after diagnosis, research shows. Despite the proven benefits, about 33% of women who are prescribed EHT do not take their medication as prescribed (less than 80% take their daily dosage) and are thus at higher risk of recurrence and death. This educational randomized controlled study will develop and pilot-test a bilingual, culturally tailored, personalized, interactive mobile application (app) in combination with patient navigation to promote and improve adherence to endocrine hormonal therapy (EHT) among breast cancer patients.

Comparing changes in biomarkers from a diagnostic core needle biopsy to surgical pathology specimen or repeat core needle biopsy.

This phase III trial compares the effect of active symptom monitoring and patient education to patient education alone in helping young women with stage I-III breast cancer stay on their hormone therapy medicines. The patient education tool contains interactive weblinks which provide patients with education material about breast cancer and side effects of therapy. Symptom monitoring is a weblink via email or text message with questions asking about symptoms. Hormone therapy for breast cancer can cause side effects, and may cause some women to stop treatment early. Asking about symptoms more often may help women keep taking hormone therapy medicines

The purpose of this study is to compare the effects on low risk breast cancer receiving usual care that includes regional radiation therapy, with receiving no regional radiation therapy. Researchers want to see if not giving this type of radiation treatment works as well at preventing breast cancer from coming back.

This randomized phase III trial studies whether weight loss in overweight and obese women may prevent breast cancer from coming back (recurrence). Previous studies have found that women who are overweight or obese when their breast cancer is found (diagnosed) have a greater risk of their breast cancer recurring, as compared to women who were thinner when their cancer was diagnosed. This study aims to test whether overweight or obese women who take part in a weight loss program after being diagnosed with breast cancer have a lower rate of cancer recurrence as compared to women who do not take part in the weight loss program. This study will help to show whether weight loss programs should be a part of breast cancer treatment.

The first goal of this project is to validate the superiority of semi-permanent marks used in conjunction with specialized light-based surface imaging (SIGRT) in an effort to phase out the use of permanent tattoos for the investigator's patients. The secondary goal of this project is to validate the superiority of specialized light-based surface imaging for daily radiation set-up compared to standard-of-care imaging methods using ionizing radiation, such as weekly port films or cone-beam CT (CBCT) scans during a radiation therapy course for breast cancer.

To examine whether rapamycin can reduce malignant markers and aberrant mammary stem/progenitor cells (MaSCs) number in surgical specimens

We will assess physical functioning, daily physical activity with wearable activity monitors, biological markers (serum and salivary cortisol), diet, program adherence, as well as psycho-social measures of physical, mental, and spiritual wellbeing. In addition, BCS will be asked to describe their best day possible and their typical day. We will conduct a qualitative analysis from their responses to identify endorsement of themes.

This is an international, multicenter, open-label, randomized, Phase 3 study in patients with locally advanced, inoperable, or metastatic triple-negative breast cancer (mTNBC) who have not received previous therapy for advanced disease and whose tumors are PD-L1 positive (defined using the PD-L1 IHC 22C3 assay as tumors with a combined positive score [CPS] ≥ 10) at screening.