ASTRA Study: Circulating Tumor Cells in Blood of Patients With High-Grade Serous Ovarian Cancer
NCT07439328 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30
Last updated 2026-02-27
Summary
High-grade serous ovarian cancer is typically diagnosed at an advanced stage and remains associated with poor long-term survival. Reliable biomarkers for predicting disease course and treatment response are still limited.
Circulating tumor cells (CTCs) are malignant cells that detach from the primary tumor and enter the bloodstream. Their presence has been associated with disease progression and prognosis in several malignancies, including ovarian cancer. However, data on the morphological characteristics, immunophenotype, and clinical relevance of CTCs in high-grade serous ovarian cancer remain limited.
The ASTRA study evaluates the number and characteristics of circulating tumor cells in peripheral blood samples obtained from patients with high-grade serous ovarian cancer. The study examines CTC count, presence of CTC clusters and megakaryocytes, and immunophenotypic marker expression, and explores associations between CTC findings and clinical parameters and outcomes.
Results from this study may contribute to improved understanding of circulating tumor cells in ovarian cancer and support the development of liquid biopsy approaches for prognostic assessment and disease monitoring.
Conditions
Interventions
- OTHER
-
Peripheral Blood Collection for CTC Isolation and Analysis
Collection of an additional 10 mL peripheral blood sample for isolation and characterization of circulating tumor cells using the Parsortix size-based microfluidic system, followed by cytological and immunophenotypic analysis.
Sponsors & Collaborators
-
Institute of Oncology Ljubljana
lead OTHER
Study Design
- Allocation
- NA
- Purpose
- DIAGNOSTIC
- Masking
- NONE
- Model
- SINGLE_GROUP
Eligibility
- Min Age
- 18 Years
- Sex
- FEMALE
- Healthy Volunteers
- No
Timeline & Regulatory
- Start
- 2024-01-01
- Primary Completion
- 2025-12-31
- Completion
- 2025-12-31
Countries
- Slovenia
Study Locations
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