The PREDICT Registry for DCIS Patients With DCISionRT Testing (PREDICT)
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|ClinicalTrials.gov Identifier: NCT03448926|
Recruitment Status : Recruiting
First Posted : February 28, 2018
Last Update Posted : April 6, 2021
|Condition or disease||Intervention/treatment|
|DCIS||Diagnostic Test: DCISionRT Test|
This is a prospective cohort study conducted within the medical network of the participating investigators and institutions. Patients meeting the eligibility criteria outlined above will be eligible for participation and the investigators will obtain written informed consent. A central Institutional Review Board (IRB) will approve the protocol and each participating institution.
After diagnosis of DCIS, the most representative tissue block (or 10 sections mounted on charged slides cut at 3 microns) will be sent to PreludeDx for DCISionRT. The most representative specimen should be selected from tissue collected via direct tumor biopsy (either FNA, core needle or excisional biopsy) as part of routine patient care. Patients must be enrolled in the study and the enrollment and pre-testing data forms must be completed and submitted before the DCISionRT results are reported. Then, after review of the DCISionRT results, the investigators complete and submit the post-testing data form. The patient may then be followed for up to 10 years (or until death) with completion of a yearly follow-up form.
All study data will be stored in an encrypted, HIPAA-compliant database maintained by the coordinating center. Each consented patient will be assigned a unique Study ID number. Study personnel at each institution will maintain an electronic key to link the Study IDs of its own patients to the patients' local medical record number. All personal health information (PHI) will remain at the local institution and only de-identified data will be uploaded to the national registry. No genetic test results that may be used to identify the patient will be included in the database.
This study anticipates the participation of 25 to 100 sites within the United States with each site enrolling between 10 and 100 patients. The study is designed to collect information for up to 2,500 patients.
The purpose of this study is to create a de-identified database of patients, test results, treatment decisions and outcomes that can be queried to determine the clinical utility of the DCISionRT™ Test in the management of DCIS, as it is broadly incorporated into clinical practice. The primary objective is to identify a statistically significant difference in physician treatment recommendations for patients diagnosed with DCIS and treated with breast conserving surgery based on availability of the DCISionRT test results. The primary endpoints are treatment recommendations according to standard procedure at each clinical site both pre- and post-DCISionRT results.
Secondary endpoints include the percent of patients for which the recommended treatment before DCISionRT results and after DCISionRT results differ as a function of clinical factors, such as age groups (<40, 40-50 and >50), grade (I, II, III), and tumor size (>1cm, >2.5cm, >4cm). Other analyses involve the identification of key driver(s) of treatment recommendation, such as age, ethnicity, race, family history, presentation (screening/clinical), grade, architecture, necrosis, tumor size, palpability, number of excisions, surgical margin, hormone receptor status, HER2 status; distribution of DCISionRT scores across the cohort; and identification of key driver(s) of treatment recommendation based on geographic region of the investigator.
The study population will be selected from the clinical practices of the participating investigators and institutions. Patients who have been recently diagnosed with DCIS and are being evaluated for the need for further therapy will be screened for eligibility per the following eligibility criteria.
|Study Type :||Observational [Patient Registry]|
|Estimated Enrollment :||2500 participants|
|Target Follow-Up Duration:||10 Years|
|Official Title:||A Prospective Registry Study to Evaluate the Effect of the DCISionRT Test on Treatment Decisions in Patients With DCIS Following Breast Conserving Therapy|
|Actual Study Start Date :||February 27, 2018|
|Estimated Primary Completion Date :||February 2023|
|Estimated Study Completion Date :||February 2033|
Patients must have histologically confirmed ductal carcinoma in situ (DCIS) in a single breast without evidence of invasive cancer (presence of lobular carcinoma in situ (LCIS) or other benign breast disease in addition to DCIS is acceptable)
Diagnostic Test: DCISionRT Test
The Prelude DCISionRT Test was developed by Prelude Corporation and is performed at its CLIA laboratory facility. The biomarkers used to evaluate the biologic signature of DCIS tissue are based on over a decade of research including the University of California, San Francisco, Yale University as well as Prelude Corporation. The test is prognostic for 10-year recurrence risk and predicts RT treatment benefit for invasive breast cancer. The laboratory is regulated under the Clinical Laboratory Improvement Amendments of 1988 (CLIA) as qualified to perform high-complexity clinical testing and is accredited by the College of American Pathologists (CAP).
- Percent of Cases with Changes in Treatment Recommendation [ Time Frame: 5 years ]The study will collect details on physician treatment recommendations before and after availability of the genomic test (DCISionRT) results. The data elements include type of surgery (lumpectomy, therapeutic mastectomy, contralateral prophylactic mastectomy), type of radiation therapy (none, IORT, APBI, whole breast RT) and endocrine therapy (yes, no). The main measure will be percent of cases in which treatment recommendations are changed after the test results become available.
- Function of Demographic Factors [ Time Frame: 5 years ]Percent of patients for which the recommended treatments change after DCISionRT results are known as a function of demographic factors (age groups <40, 40-50 and >50; ethnicity; family history)
- Function of Tumor Factors [ Time Frame: 5 years ]Percent of patients for which the recommended treatments change after DCISionRT results are known as a function of tumor factors (tumor size, grade, architecture, necrosis, palpability, surgical margins, hormone receptor status).
- Distribution of DCISionRT scores across the cohort [ Time Frame: 5 years ]Each patient will receive the following results from the DCISionRT test: Risk Score (0 - 10.0), Risk Category Low (<=3.0) or Elevated (>3.0), Risk Prognosis with Breast Conserving Therapy Alone (0 - 40%) and Risk Prognosis with Breast Conserving Therapy and Radiation (0 - 40%).
- Function of Geographic Region [ Time Frame: 5 years ]Percent of patients for which the recommended treatments change after DCISionRT results are known as a function of the geographic region of the investigator.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03448926
|Contact: Steven C Shivers, PhDfirstname.lastname@example.org|
|Contact: Mary Kay Hardwickemail@example.com|
|Principal Investigator:||Charles E Cox, MD||University of South Florida|
|Principal Investigator:||Rakesh R Patel, MD||Good Samaritan Hospital|
|Principal Investigator:||Pat Whitworth, MD||Nashville Breast Center|