ISRCTN46305518.

Trial name or title	Informed shared decision making supported by decision coaches for women with ductal carcinoma in situ
Methods	RCT
Participants	Women are eligible if they are at least 18 years old, have no known BRCA1/2‐mutation, are not pregnant and have a primary DCIS. All participants need sufficient German language skills.
Interventions	The intervention includes a four‐day training program in SDM for specialized nurses, a two hour‐lasting workshop in SDM for physicians and an evidence‐based patient decision aid and decision coaching for women. Women in the control group receive standard care.
Outcomes	Involvement in treatment decision making and decisional conflict
Starting date	October 2014
Contact information	Martin‐Luther‐King‐Platz 6 Hamburg 20146 Germany +49 40 42838 7152 Birte.Berger‐Hoeger@uni‐hamburg.de
Notes