FRα expression in high-grade serous ovarian cancer (FRα positive)
Official title: Folate Receptor Alpha (FRα) Expression and Heterogeneity in Epithelial Ovarian Cancer
Run by Hellenic Cooperative Oncology Group · NCT07889843 · Data updated 2026-11-12
A retrospective study in Greece will test how often Folate Receptor Alpha is present in tumor samples from adults diagnosed with high-grade serous ovarian cancer.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | Women only |
| Enrollment | 200 (estimated) |
| Sponsor | Hellenic Cooperative Oncology Group Academic / other |
| Locations | 1 site (Athens) |
| Status | Recruiting |
| Started | July 10, 2026 |
| Main results expected | December 30, 2026 |
| Study ends | April 30, 2027 |
| Registry record updated | October 22, 2026 |
| Trial ID | NCT07889843 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Women aged 18 or older with newly diagnosed high-grade serous epithelial ovarian cancer (including fallopian tube or primary peritoneal cancers) and adequate tissue samples.
✕Probably not a fit
Patients whose tumors are FRα-negative or whose tissue quality does not meet analysis criteria may not benefit from this biomarker assessment.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a single-country, retrospective biomarker study using FFPE tissue samples from about 200 women diagnosed between 2001 and 2025. Samples collected at initial diagnosis will be analyzed centrally with the Ventana FOLR1 RxDx assay to determine FRα expression. The primary goal is to determine the prevalence of FRα positivity, defined as at least 75% viable tumor cells showing moderate to strong membrane staining. Secondary analyses are not specified in the available description. Patients included are adults with high-grade serous epithelial ovarian cancer and adequate tissue; samples from relapsed disease are excluded.
Why it matters
Potential benefit: If FRα expression is common, it could guide future biomarker-driven testing and targeted therapies for ovarian cancer.
How similar studies have gone: Similar biomarker studies have shown the feasibility of centralized FRα testing in ovarian cancer with meaningful prevalence data, though the specific assay and population here are unique.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Female patients. * 18 years of age or older. * Patients diagnosed with high-grade serous epithelial ovarian cancer according to pathologists' report. Exclusion Criteria: * Diagnosis of non-epithelial ovarian tumors * Diagnosis of endometrioid, mucinous, or clear cell carcinomas. * Inadequate (poor quality or inadequate posology for analysis) tissue samples.
Where it's running
-
Hellenic Cooperative Oncology Group
Athens, Greece Recruiting
Study contacts
- Study coordinator: Elena Fountzila
- Email: fountzila@oncogenome.gr
- Phone: +306945779709
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.