Overcoming immune suppression and rebalancing the immune response in ovarian cancer
Official title: OveRcoming immunosupprEssion aNd rebAlancing the Immune reSponSe in ovAriaN CancEr Study
Run by Gynaecologisch Oncologisch Centrum Zuid · NCT06611072 · Data updated 2026-11-12
We will try to find and reverse immune suppression by analyzing bone marrow, blood, spleen, peritoneal fluid, and tumor samples from women having surgery for ovarian cancer.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | Women only |
| Enrollment | 90 (estimated) |
| Sponsor | Gynaecologisch Oncologisch Centrum Zuid Academic / other |
| Drugs / interventions | chemotherapy, Immunotherapy |
| Locations | 1 site (Eindhoven, North Brabant) |
| Status | Recruiting |
| Started | January 1, 2025 |
| Main results expected | October 2027 |
| Study ends | December 2027 |
| Registry record updated | December 12, 2025 |
| Trial ID | NCT06611072 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Women aged 18 or older with newly diagnosed ovarian cancer who are scheduled for primary or interval debulking surgery and able to provide informed consent.
✕Probably not a fit
Pregnant or breastfeeding women, people with active infections or known immunosuppressive conditions, those taking immunomodulatory medications, or those with severe comorbidities are excluded and unlikely to benefit from participation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This translational project collects bone marrow, blood, peritoneal fluid, spleen, and tumor biopsies from women with newly diagnosed ovarian cancer undergoing primary or interval debulking, alongside control samples from women having benign gynecologic surgery. Researchers will profile myeloid progenitor cells and other immune cell populations to map tumor-induced changes in the bone marrow and tumor microenvironment. Ex vivo experiments will test whether nanoparticles or other agents can modify these cells to reduce immune suppression. The goal is to identify immune mechanisms and potential targets that could inform new immunotherapy strategies for ovarian cancer.
Why it matters
Potential benefit: If successful, the work could reveal new ways to reverse tumor-driven immune suppression and point to therapies that improve responses and survival in ovarian cancer patients.
How similar studies have gone: Related approaches have shown promising preclinical and laboratory results, but clinical benefit from reprogramming myeloid cells in ovarian cancer has not yet been established.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Subjects should be at least 18 years old and mentally competent; * Newly diagnosed patients with OC who go for primary debulking surgery or patients with OC who are scheduled for interval debulking; * Controls: women who undergo surgery for benign gynaecological conditions under general anaesthesia. Exclusion Criteria: * Mentally incompetent; * Pregnant or breastfeeding; * Known inflammatory of infectious diseases or an immunosuppressive status; * Using medication interfering with the immune system; * Severe comorbidities: other active malignancy (except for basal cell carcinoma and other in situ carcinomas); * Serious psychiatric pathology; * A self reported alcohol consumption of \>21 units per week.
Where it's running
-
Catharina Hospital
Eindhoven, North Brabant, Netherlands Recruiting
Study contacts
- Study coordinator: Jurgen Piek, MD, PhD
- Email: jurgen.piek@catharinaziekenhuis.nl
- Phone: 00310402399300
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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.