SDM POSSIBLE: A Breast Cancer Treatment Decision Aid for Women 70+ With Low-Risk Stage I Breast Cancers

Investigators aim to conduct a type 1 hybrid effectiveness-implementation surgeon-level cluster randomized clinical trial (RCT) of a multi-level intervention, a shared decision making training for surgeons plus patient decision aid vs. usual care (UC), at 7 large health systems across the U.S. to learn the intervention's effectiveness. Decision aids will be mailed and sent via patient portal and/or via email (when portal/email addresses are available) to patients before their first surgical encounter. The central hypothesis is that the novel intervention will be a key resource to support shared decision making leading to higher quality treatment decisions and as result improved care and outcomes.

NCT Number	NCT06896474
Lead Sponsor	Beth Israel Deaconess Medical Center
Conditions	Breast Cancer
Enrollment	402 participants
Start Date	2026-02-04
Primary Completion	2032-10-01 (estimated)
Study Completion	2033-09-30 (estimated)
Updated on ClinicalTrials.gov	2026-04-07