Breast Cancer Clinical Trial
Official title:
Prospective Study of the Prosigna Assay on Neoadjuvant Clinical Decision-making in Women With HR+/Her2- Breast Cancer
Verified date | April 2024 |
Source | Dana-Farber Cancer Institute |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
This research study is evaluating a genomic analysis called Predictor Analysis of Microarray 50 (PAM50, by Prosigna®) as a tool to possibly guide the participant and the treating physician to choose the most personalized pre-operative treatment for breast cancer.
Status | Active, not recruiting |
Enrollment | 60 |
Est. completion date | December 31, 2024 |
Est. primary completion date | November 29, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Patients pre- or post-menopausal must have histologically confirmed early stage/locally advanced invasive breast cancer - ER or PR = 1% by immunohistochemistry (IHC) - HER2-negative status, according to guidelines by ASCO CAP guidelines: https://www.asco.org/practice-guidelines/quality-guidelines/guidelines/breast-cancer#/9751 - Tumor size = 0.5cm (clinical or radiographic measurements) - Any nodal status allowed - Age > 18 years old - Felt to be a possible candidate for neoadjuvant systemic therapy by their treating physician Exclusion Criteria: - ER-negative and PR-negative invasive breast cancer (< 1% by IHC) - Known metastatic disease |
Country | Name | City | State |
---|---|---|---|
United States | Dana-Farber Cancer Institute | Boston | Massachusetts |
Lead Sponsor | Collaborator |
---|---|
Dana-Farber Cancer Institute | NanoString Technologies, Inc. |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | The extent to which the Prosigna test results will change physician's pre-test decision regarding neoadjuvant treatment of patients with stage II-III ER/PR+, HER2-negative breast cancer | Questionnaires will be used to record neoadjuvant treatment decisions pre- and post-test. Data will be summarized in a contingency table, and the extent to which decisions changed will be estimated as the proportion of discordant responses and reported with a two-sided exact 95% confidence interval. | 2 years | |
Secondary | The association of pCR/RCB following neoadjuvant therapy with Risk of recurrence (ROR). | The association of the Prosigna test results to pathologic outcomes will be explored marginally in all patients who receive neoadjuvant treatment, and non-parametric Wilcoxon rank sum and Spearman test of correlation with two-sided alpha = 0.05 will be used to make inferences. Non-linear spline regression techniques will be used to explore the relationship between pre-treatment molecular phenotypes of response to neoadjuvant treatment. | 2 years | |
Secondary | To assess if treatment change was based on ROR score, intrinsic subtype or both | Non-linear spline regression techniques will be used to explore the relationship between pre-treatment molecular phenotypes and response to neoadjuvant treatment. On the "Post-Prosigna Physician Questionnaire" physicians will be asked which of these item (ROR score, instrinsic subtype, or both) contributed to their neoadjuvant treatment decision-making. | 2 years | |
Secondary | To evaluate physicians' confidence in their therapy before and after the test | Physicians will complete pre-test and post-test questionnaires that measure their confidence at each timepoint. The pre-test questionnaire will examine the percentage of physicians who are confident about their treatment recommendation. The same questions about confidence in diagnosis and treatment will be realized after Prosigna results and rates will be compared. | 2 years | |
Secondary | To evaluate patients' confidence in their therapy before and after the test | Patients will complete pre-test and post-test questionnaires to measure their confidence at each timepoint. The pre-test questionnaire will examine the percentage of patients who understand their diagnosis and how Prosigna works and who are confident in treatment recommendation. The same question about diagnosis and treatment will be realized after Prosigna results and rates will be compared. | 2 years |
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