Breast Cancer Stage 0CONSYDERNCT06275126
Optimizing Surgical Decisions in Young Adults With Breast Cancer
A study testing CONSYDER decision aid in people with Breast Cancer Stage 0 and Breast Cancer Stage I, run by Weill Medical College of Cornell University at 4 sites in United States.
Trial summary
The goal of this study is to understand and improve the breast surgical decision-making process for young women newly diagnosed with breast cancer. As part of this study, the investigators will evaluate the impact and use a web-based tool called CONSYDER that is designed to provide useful information to young breast… Read more about this study
- Who is it for?
- Ages 18 to 44 years, women only
- Conditions the study is for
- Breast Cancer Stage 0, Breast Cancer Stage I, Breast Cancer Stage II
- What is being tested?
- CONSYDER decision aid
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 800 participants
- Where
- 4 sitesUnited States
- Study dates
- 13 Mar 2024to 31 Aug 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 44 years
- Women only
- No healthy volunteers
- Adult
Who may be able to join
- Female aged 18-44
- New diagnosis of Stage 0, 1, 2, or 3 unilateral breast cancer
- English or Spanish speaking
Who cannot join
- Diagnosis of de novo Stage 4 breast cancer
- Recurrent early-stage breast cancer
- Bilateral breast cancer
Trial locations and contacts
4 sites in 1 country. Contact the study team or a site near you to ask about taking part.
United States4 sites, 4 recruiting
- Recruiting
Dana-Farber Cancer Institute
Boston, Massachusetts, 02215
Ann Partridge, MD, MPH, 617-632-3800, ann_partridge@dfci.harvard.edu
Ann Partridge, MD, MPH
- Recruiting
Duke Cancer Institute
Durham, North Carolina, 27710
Jennifer Plichta, MD, MS, 9196819156, jennifer.plichta@duke.edu
Jennifer Plichta, MD, MS
- Recruiting
Yale Cancer Center
New Haven, Connecticut, 06510
Rachel Greenup, MD, MPH, 203-737-2966, rachel.greenup@yale.edu
Rachel Greenup, MD, MPH
- Recruiting
Weill Cornell Medicine
New York, New York, 10065
Shoshana Rosenberg, ScD, MPH, 646-962-8041, shr4009@med.cornell.edu
Darima Dorzhieva, 646-962-8666, dad4011@med.cornell.edu
About this study
The goal of this study is to understand and improve the breast surgical decision-making process for young women newly diagnosed with breast cancer. As part of this study, the investigators will evaluate the impact and use a web-based tool called CONSYDER that is designed to provide useful information to young breast cancer patients. It is also meant to improve communication between young women and their surgeons with the purpose of helping patients make appropriate surgical decisions.
Participants will complete surveys approximately within 1 week of the surgical consult and approximately 6 months after surgery. Patients who receive neoadjuvant chemotherapy will also be surveyed after the completion of neoadjuvant treatment but prior to surgery. Some patients will be invited for an interview after their surgery as part of the evaluation. A subset of patients/surgeons will also have their surgical consultation audio-recorded.
Read the detailed description
Primary objectives:
- To test the effectiveness of the CONSYDER decision support tool on reducing decisional conflict prior to breast cancer surgery.
- To evaluate the implementation of and mechanisms of use for CONSYDER.
Secondary Objectives:
- To determine the impact of CONSYDER on decision-making preferences, breast cancer knowledge, treatment goals and preferences, anxiety, decisional regret, and self-efficacy in communication.
Exploratory Objectives:
- To explore whether CONSYDER impacts surgical choice.
OUTLINE: This is a multi-site cluster randomized trial using a stepped wedge design. Approximately 800 women will be recruited at 4 study sites (Weill Cornell Medicine, Yale Cancer Center, Dana-Farber Cancer Institute, Duke Cancer Institute), including network affiliate sites, over an approximate 30-month period. All sites will have a 6-month "run-in" period where patients will not be sent CONSYDER. The 6-month blocks may be extended if recruitment targets are not met. Sites will be randomized to begin delivery of CONSYDER to all newly diagnosed women, age ≤44, with Stage 0-III breast cancer as part of routine clinical care; young women will have access to the website whether or not they consent to research study participation.
- Conditions
- Breast Cancer Stage 0, Breast Cancer Stage I, Breast Cancer Stage II, Breast Cancer Stage III
- Being tested
- CONSYDER decision aid
- Medical subject headings
- Breast Carcinoma In Situ, Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CONSYDER decision aidOther
Web-based breast cancer surgery decision aid
| Study group | Role | What they receive |
|---|---|---|
| Usual care | No intervention | Prior to institutional crossover, participants receive care as per usual for 6 months ("run-in" period) and are not sent CONSYDER. |
| CONSYDER decision aid | Other | Web-based breast cancer surgery decision aid Receives: Other: CONSYDER decision aid |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pre-surgical decisional conflict as measured by the Decisional Conflict Scale (DCS)
The Decisional Conflict Scale (DCS) includes 5 subscales (uncertainty, informed, values clarity, support, effective decision). Each item is rated on a scale of 0 (strongly agree)-4 (strongly disagree). Scores range from 0-100 with higher scores indicating more decisional conflict.
Measured: pre-surgery
Use of CONSYDER pre-consult
Proportion of patients eligible to use CONSYDER who logged in prior to surgical consult
Measured: pre-surgery
Secondary outcomes (10)
Knowledge as measured by adapted Breast Cancer Surgery Decision Quality Instrument (BCS -DQI)
Breast cancer knowledge will be assessed using selected questions from the adapted Breast Cancer Surgery Decision Quality Instrument (BCS -DQI), an instrument designed to evaluate the quality of breast cancer treatment decisions. The number of correct responses across (out of a total of 5 items) will be summed.
Measured: pre-surgery
Treatment goals and preferences as measured by adapted Breast Cancer Surgery Decision Quality Instrument (BCS-DQI)
Treatment goals and preferences have been adapted from the BCS-DQI to include preferences salient to young women. We will ask participants to mark on a scale (not important, 0-extremely important, 10) the importance of several reasons in relation to their surgical decision. Ratings for each item will be summarized (e.g., mean, median, range).
Measured: pre-surgery
Anxiety, as measured with the 8-item Patient Reported Outcomes Measurement Information System (PROMIS) - Anxiety - Short Form
Anxiety, as measured with the 8-item PROMIS - Anxiety - Short Form. Response options for each item range from never (1) to always (5). Raw scores range from 5-40 and T-scores range from 37.1-83.1. Higher scores indicate higher levels of anxiety.
Measured: pre-surgery and 6 months post-surgery
Self-efficacy in communication as measured by the Perceived Efficacy in Patient-Physician Interactions scale (PEPPI).
Perceived Efficacy in Patient-Physician Interactions scale (PEPPI) has 5 items. Each item is rated on a (0, not confident at all - 10, extremely confident) scale. Scores range from 0-50, with higher scores indicating greater self-efficacy.
Measured: pre-surgery
Decisional regret as measured by the Decision Regret Scale (DRS)
The Decision Regret Scale (DRS) includes 5 items. Each item is rated on a scale of 1 (strongly agree)-5 (strongly disagree). Scores range from 0-100 (item scores are converted by subtracting "1" from individual items and multiplying by 25). Higher scores indicate more decisional regret.
Measured: 6 months post-surgery
Receipt of contralateral prophylactic mastectomy
Proportion of patients who undergo contralateral prophylactic mastectomy
Measured: 6 months post-surgery
Fidelity of implementation of CONSYDER via patient portal email
Proportion of patients eligible to use CONSYDER who were sent an email from patient portal
Measured: pre-surgical consult
Use of CONSYDER post-consult
Proportion of patients who logged in to CONSYDER post-surgical consult
Measured: up to 6 months post-surgical consult
Frequency of CONSYDER use pre-consult
Count of the number log-ins to CONSYDER pre-consult
Measured: pre consult
Frequency of CONSYDER use post-consult
Count of the number log-ins to CONSYDER post-consult
Measured: up to 6 months post-surgical consult
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Feb 2024
- Study start13 Mar 2024
- Primary completion1 May 2027 (estimated)
- Study completion31 Aug 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Breast Cancer Stage 0Studies of the same condition, open and under way.
- More trials run by Weill Medical College of Cornell UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Crossover
- Model description
- The study is a pragmatic, Type II hybrid effectiveness-implementation, stepped-wedge design that will incorporate a mixed-methods approach to test the efficacy and evaluate the implementation of the CONSYDER intervention
- Masking
- None (open label)
- Enrolment
- 800 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Weill Medical College of Cornell University
- Sponsor type
- University, hospital or other
- Collaborators
- National Institutes of Health (NIH), National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Shoshana Rosenberg, ScD, MPH, Principal investigator, Weill Medical College of Cornell UniversityRachel Greenup, MD, MPH, Principal investigator, Yale University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06275126
- Sponsor's protocol ID
- 23-08026433
- Other IDs
- R01CA256877-01A1
- Acronym
- CONSYDER
- Status last verified
- Aug 2026
- First submitted
- 6 Feb 2024
- Last updated
- 19 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified data sets will made available, by request, to outside researchers. A data use agreement may be required with participating institutions to facilitate sharing of any data sets. Data from qualitative interviews, focus groups, audio-recordings, and any data collected from clinicians/providers will not be made available due to concerns about potentially identifying information being shared.
Study at a glance
From the registry record, last updated by the sponsor on 19 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Optimizing Surgical Decisions in Young Adults With Breast Cancer
- ClinicalTrials.gov ID
- NCT06275126
- Acronym / sponsor ID
- CONSYDER / 23-08026433
- Conditions
- Breast Cancer Stage 0, Breast Cancer Stage I, Breast Cancer Stage II, Breast Cancer Stage III
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 800 participants (estimated)
- Lead sponsor
- Weill Medical College of Cornell UniversityUniversity, hospital or other
- Collaborators
- National Institutes of Health (NIH), National Cancer Institute (NCI)
- Study start
- 13 Mar 2024 (actual)
- Primary completion
- 1 May 2027 (estimated)
- Study completion
- 31 Aug 2027 (estimated)
- First posted
- 23 Feb 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this study is to understand and improve the breast surgical decision-making process for young women newly diagnosed with breast cancer. As part of this study, the investigators will evaluate the impact and use a web-based tool called CONSYDER that is designed to provide useful information to young breast cancer patients. It is also meant to improve communication between young women and their surgeons with the purpose of helping patients make appropriate surgical decisions.
Participants will complete surveys approximately within 1 week of the surgical consult and approximately 6 months after surgery. Patients who receive neoadjuvant chemotherapy will also be surveyed after the completion of neoadjuvant treatment but prior to surgery. Some patients will be invited for an interview after their surgery as part of the evaluation. A subset of patients/surgeons will also have their surgical consultation audio-recorded.
Detailed description
Primary objectives:
- To test the effectiveness of the CONSYDER decision support tool on reducing decisional conflict prior to breast cancer surgery.
- To evaluate the implementation of and mechanisms of use for CONSYDER.
Secondary Objectives:
- To determine the impact of CONSYDER on decision-making preferences, breast cancer knowledge, treatment goals and preferences, anxiety, decisional regret, and self-efficacy in communication.
Exploratory Objectives:
- To explore whether CONSYDER impacts surgical choice.
OUTLINE: This is a multi-site cluster randomized trial using a stepped wedge design. Approximately 800 women will be recruited at 4 study sites (Weill Cornell Medicine, Yale Cancer Center, Dana-Farber Cancer Institute, Duke Cancer Institute), including network affiliate sites, over an approximate 30-month period. All sites will have a 6-month "run-in" period where patients will not be sent CONSYDER. The 6-month blocks may be extended if recruitment targets are not met. Sites will be randomized to begin delivery of CONSYDER to all newly diagnosed women, age ≤44, with Stage 0-III breast cancer as part of routine clinical care; young women will have access to the website whether or not they consent to research study participation.
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- The study is a pragmatic, Type II hybrid effectiveness-implementation, stepped-wedge design that will incorporate a mixed-methods approach to test the efficacy and evaluate the implementation of the CONSYDER intervention
| Arm | Type | Receives |
|---|---|---|
| Usual care | No intervention | –Prior to institutional crossover, participants receive care as per usual for 6 months ("run-in" period) and are not sent CONSYDER. |
| CONSYDER decision aid | Other | Other: CONSYDER decision aidWeb-based breast cancer surgery decision aid |
Who may qualify
- Ages
- 18 to 44 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Female aged 18-44
- New diagnosis of Stage 0, 1, 2, or 3 unilateral breast cancer
- English or Spanish speaking
Key exclusion criteria (3 listed)
- Diagnosis of de novo Stage 4 breast cancer
- Recurrent early-stage breast cancer
- Bilateral breast cancer
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CONSYDER decision aidWeb-based breast cancer surgery decision aid | Other | CONSYDER decision aid |
Primary outcome
Pre-surgical decisional conflict as measured by the Decisional Conflict Scale (DCS)
Time frame: pre-surgery
The Decisional Conflict Scale (DCS) includes 5 subscales (uncertainty, informed, values clarity, support, effective decision). Each item is rated on a scale of 0 (strongly agree)-4 (strongly disagree). Scores range from 0-100 with higher scores indicating more decisional conflict.
Use of CONSYDER pre-consult
Time frame: pre-surgery
Proportion of patients eligible to use CONSYDER who logged in prior to surgical consult
10 secondary outcomes
Knowledge as measured by adapted Breast Cancer Surgery Decision Quality Instrument (BCS -DQI)
Time frame: pre-surgery
Treatment goals and preferences as measured by adapted Breast Cancer Surgery Decision Quality Instrument (BCS-DQI)
Time frame: pre-surgery
Anxiety, as measured with the 8-item Patient Reported Outcomes Measurement Information System (PROMIS) - Anxiety - Short Form
Time frame: pre-surgery and 6 months post-surgery
Self-efficacy in communication as measured by the Perceived Efficacy in Patient-Physician Interactions scale (PEPPI).
Time frame: pre-surgery
Decisional regret as measured by the Decision Regret Scale (DRS)
Time frame: 6 months post-surgery
Receipt of contralateral prophylactic mastectomy
Time frame: 6 months post-surgery
Fidelity of implementation of CONSYDER via patient portal email
Time frame: pre-surgical consult
Use of CONSYDER post-consult
Time frame: up to 6 months post-surgical consult
Frequency of CONSYDER use pre-consult
Time frame: pre consult
Frequency of CONSYDER use post-consult
Time frame: up to 6 months post-surgical consult
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Aug 2026.
- Individual participant dataSharing planned: Yes. De-identified data sets will made available, by request, to outside researchers. A data use agreement may be required with participating institutions to facilitate sharing of any data sets. Data from qualitative interviews, focus groups, audio-recordings, and any data collected from clinicians/providers will not be made available due to concerns about potentially identifying information being shared.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Shoshana Rosenberg, ScD, MPH principal investigator
Weill Medical College of Cornell University
Rachel Greenup, MD, MPH principal investigator
Yale University
4 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing CONSYDER decision aid in people with Breast Cancer Stage 0 and Breast Cancer Stage I, run by Weill Medical College of Cornell University at 4 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 19 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 4 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Shoshana Rosenberg, ScD, MPH (646-962-8041, shr4009@med.cornell.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Pre-surgical decisional conflict as measured by the Decisional Conflict Scale (DCS) (time frame: pre-surgery). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Aug 2026.