Conditions: Breast Cancer
Keywords: B adrenergic pathway B Blocker
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 2
Healthy volunteers: no

Brief summary:
This trial is a Phase II study using the "window-of-opportunity" design in which the treatment-free window between breast cancer diagnosis and surgical tumor resection is used to study the biological effects of the beta blocker propranolol .

Detailed description:
* Patients will be recruited from the Garbar Breast Care Center and University Medical Center following diagnosis of invasive breast cancer by breast biopsy.
* The sympatholytic nonselective beta blocker propranolol will be administered to all participants in a non-randomized manner at an equal dose of 1.5 mg/kg/day.
* Following surgical resection of the tumor , the primary endpoint of this study is quantified by comparing the proliferative index of the tumor before propranolol administration (quantified using the initial tumor biopsy) and after 3 weeks of propranolol (quantified using the surgically resected tumor).
* Additional molecular analyses and evaluation of safety and toxicity will also be performed to better understand the effects of this treatment on breast cancers and patient adherence to the drug.

Arms:
arm 1: all subjects will receive the experimental drug

Interventions: intervention 1: propanolol
Intervention descriptions: intervention 1: Participants will take 1.5 mg/kg/day propranolol, twice daily for 3 weeks until surgical resection of the breast tumor is performed

Protocol document:
Prot_SAP_000.pdf: