The goal of this clinical study is to evaluate the feasibility and acceptability of the Galleri multi-cancer early detection blood test in people with BRCA1 or BRCA2 gene changes who are at high risk for ovarian cancer. The study will also explore how well the test detects ovarian cancer or related precancerous conditions. The main questions it aims to answer are: * Is it feasible to incorporate the Galleri blood test into the care of people at high \* risk for ovarian cancer? * Is the Galleri blood test acceptable to participants? * How well does the Galleri blood test identify ovarian cancer or related precancerous conditions? Participants will: * Receive the Galleri blood test. * Complete questionnaires about their experience with the test. * Some participants will also complete an interview about their experiences and preferences. * Continue with their planned standard medical care, including surgery or follow-up visits, as appropriate.
This is a prospective, multi-center, mixed-methods feasibility study evaluating the integration of the Galleri multi-cancer early detection (MCED) liquid biopsy into hereditary cancer risk management for individuals at increased risk of epithelial ovarian cancer due to pathogenic or likely pathogenic BRCA1 or BRCA2 variants. The study also includes individuals with a prior diagnosis of serous tubal intraepithelial carcinoma (STIC), a precursor lesion associated with an increased risk of subsequent ovarian, fallopian tube, or primary peritoneal cancer. The primary objective is to evaluate the feasibility of incorporating liquid biopsy testing into clinical care. Secondary objectives include evaluating participant acceptability, identifying barriers and facilitators to implementation, and generating preliminary data to inform a future large-scale validation study. Exploratory analyses will evaluate the relationship between liquid biopsy results and surgical pathology findings, including estimates of sensitivity, specificity, positive predictive value, negative predictive value, and concordance when feasible. The study consists of two cohorts: Cohort A (Surgical Feasibility Cohort): Approximately 50 adults with BRCA1 or BRCA2 pathogenic variants who are undergoing planned risk-reducing gynecologic surgery at Weill Cornell Medicine or MD Anderson Cancer Center will receive the Galleri blood test on the day of surgery. Liquid biopsy results will be compared with surgical pathology findings to evaluate the feasibility of integrating blood-based cancer detection into hereditary cancer prevention. Participants will remain on their planned standard-of-care clinical pathway, and no additional surgical procedures will be performed for research purposes. Cohort B (Exploratory STIC Cohort): Up to 20 adults with a previous diagnosis of STIC will undergo baseline and annual Galleri blood testing for up to 10 years. The study will evaluate the feasibility and acceptability of long-term blood-based surveillance and descriptively characterize longitudinal liquid biopsy findings and clinical outcomes. A subset of approximately 20-30 participants from Cohort A will complete semi-structured interviews or focus groups within six months of surgery. Interviews will be guided by Levesque's Healthcare Access Framework to explore participant perceptions, trust, barriers, facilitators, and implementation considerations related to liquid biopsy testing. Findings will help inform equitable implementation of future ovarian cancer early detection strategies. The Galleri test used in this study is an investigational in vitro diagnostic device performed in a CLIA-certified laboratory. It is not approved by the U.S. Food and Drug Administration for ovarian cancer screening or this specific indication and is being evaluated for research purposes only. Results from this feasibility study are intended to support the development of a future multi-site validation study evaluating the diagnostic performance of liquid biopsy for early detection of epithelial ovarian cancer in individuals with hereditary cancer susceptibility.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
70
Participants will undergo blood collection for the Galleri multi-cancer early detection (MCED) test, an investigational in vitro diagnostic device performed in a CLIA-certified laboratory. Results will be evaluated for feasibility, acceptability, and exploratory diagnostic performance for early detection of epithelial ovarian cancer in high-risk individuals.
Weill Cornell Medicine
New York, New York, United States
MD Anderson Cancer Center
Houston, Texas, United States
Feasibility of Galleri testing in BRCA1/2 surgical cohort A
Proportion of eligible BRCA1/2 PV patients in Cohort A who successfully complete liquid biopsy testing day of risk-reducing gynecologic surgery, with corresponding surgical pathology available for correlation.
Time frame: Day of surgery (up to 1 day)
Feasibility of annual Galleri testing in STIC cohort B
Proportion of Cohort B patients who continue with annual liquid biopsy following diagnosis of STIC lesion for 10 years following STIC lesion diagnosis
Time frame: Up to 10 years
Participant-Reported Perceptions Regarding Liquid Biopsy
This portion of the semi-structured participant interviews and focus groups will explore perceptions regarding liquid biopsy for early detection of epithelial ovarian cancer, guided by Levesque's Healthcare Access Framework. Participants will complete semi-structured interviews or focus groups. Qualitative thematic analysis will be conducted. The identified themes will be reported, and the outcome measure will be the number of participants who endorsed each identified theme.
Time frame: One 45-60-minute interview or focus group conducted within 6 months following the participant's surgery.
Participant-Reported Barriers Regarding Liquid Biopsy
This portion of the semi-structured participant interviews and focus groups will explore barriers regarding liquid biopsy for early detection of epithelial ovarian cancer, guided by Levesque's Healthcare Access Framework. Participants will complete semi-structured interviews or focus groups. Qualitative thematic analysis will be conducted. The identified themes will be reported, and the outcome measure will be the number of participants who endorsed each identified theme.
Time frame: One 45-60-minute interview or focus group conducted within 6 months following the participant's surgery.
Participant-Reported Facilitators Regarding Liquid Biopsy
This portion of the semi-structured participant interviews and focus groups will explore facilitators regarding liquid biopsy for early detection of epithelial ovarian cancer, guided by Levesque's Healthcare Access Framework. Participants will complete semi-structured interviews or focus groups. Qualitative thematic analysis will be conducted. The identified themes will be reported, and the outcome measure will be the number of participants who endorsed each identified theme.
Time frame: One 45-60-minute interview or focus group conducted within 6 months following the participant's surgery.
Participant-Reported Acceptability Regarding Liquid Biopsy
This portion of the semi-structured participant interviews and focus groups will explore acceptability regarding liquid biopsy for early detection of epithelial ovarian cancer, guided by Levesque's Healthcare Access Framework. Participants will complete semi-structured interviews or focus groups. Qualitative thematic analysis will be conducted. The identified themes will be reported, and the outcome measure will be the number of participants who endorsed each identified theme.
Time frame: One 45-60-minute interview or focus group conducted within 6 months following the participant's surgery.
Participant-Reported Trust Regarding Liquid Biopsy
This portion of the semi-structured participant interviews and focus groups will explore trust regarding liquid biopsy for early detection of epithelial ovarian cancer, guided by Levesque's Healthcare Access Framework. Participants will complete semi-structured interviews or focus groups. Qualitative thematic analysis will be conducted. The identified themes will be reported, and the outcome measure will be the number of participants who endorsed each identified theme.
Time frame: One 45-60-minute interview or focus group conducted within 6 months following the participant's surgery.
Detection of non-ovarian cancer signals via liquid biopsy in Cohort A
Rates of detection of non-ovarian cancer signals via liquid biopsy in cohort A.
Time frame: Up to 10 years
Sensitivity of liquid biopsy for the detection of epithelial ovarian cancer (EOC) based on surgical pathology results for Cohort A
Sensitivity will be reported as the proportion of Cohort A participants with a positive surgical pathology result who have a positive liquid biopsy result. Liquid biopsy results will be compared with final surgical pathology findings.
Time frame: At the time of surgical pathology review (approximately 6 months).
Specificity of liquid biopsy for the detection of epithelial ovarian cancer (EOC) based on surgical pathology results for Cohort A
Specificity will be reported as the proportion of Cohort A participants with a negative surgical pathology result who have a negative liquid biopsy result. Liquid biopsy results will be compared with final surgical pathology findings.
Time frame: At the time of surgical pathology review (approximately 6 months).
PPV of diagnostic performance in Cohort A
Positive predictive value (NPV) of liquid biopsy for the detection of epithelial ovarian cancer (EOC) based on surgical pathology results for Cohort A.
Time frame: At the time of surgical pathology review (approximately 6 months).
NPV of diagnostic performance in Cohort A
Negative predictive value (NPV) of liquid biopsy for the detection of epithelial ovarian cancer (EOC) based on surgical pathology results for Cohort A.
Time frame: At the time of surgical pathology review (approximately 6 months).
Identified source of non-ovarian cancer signal following diagnostic evaluation in Cohort A
The identified source of the non-ovarian cancer signal in Cohort A participants, when determined through subsequent standard-of-care diagnostic evaluation (e.g., findings from physical examinations, imaging, laboratory testing, and other clinically indicated evaluations).
Time frame: Approximately 6 months after enrollment.
Findings of diagnostic evaluations following detection of a non-ovarian cancer signal in Cohort A
Findings from subsequent standard-of-care diagnostic evaluations performed in Cohort A participants following detection of a non-ovarian cancer signal by liquid biopsy, including findings from physical examinations, imaging, laboratory testing, and other clinically indicated evaluations.
Time frame: Approximately 6 months after enrollment.
Liquid biopsy completion in STIC cohort B at baseline
For Cohort B, the proportion of participants completing the baseline liquid biopsy at study enrollment.
Time frame: Baseline (study enrollment)
Change from baseline in liquid biopsy completion in STIC Cohort B at 1 year
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 1 year.
Time frame: 1 year after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 2 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 2 years.
Time frame: 2 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 3 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 3 years.
Time frame: 3 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 4 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 4 years.
Time frame: 4 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 5 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 5 years.
Time frame: 5 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 6 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 6 years.
Time frame: 6 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 7 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 7 years.
Time frame: 7 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 8 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 8 years.
Time frame: 8 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 9 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 9 years.
Time frame: 9 years after enrollment
Change from baseline in liquid biopsy completion in STIC Cohort B at 10 years
For Cohort B, the proportion of participants completing the baseline liquid biopsy at 10 years.
Time frame: 10 years after enrollment
Overall participant retention over the 10-year follow-up period in STIC Cohort B
Proportion of Cohort B participants remaining in the study over the 10-year follow-up period.
Time frame: Up to 10 years after enrollment.
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