Phase 3 Ovarian Cancer Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- People diagnosed with uterine carcinosarcoma (also called Malignant Mixed Mullerian Tumor) that has come back or continued to grow.
- The diagnosis must have been confirmed by a specialist pathologist looking at tissue from the original tumor or a later biopsy.
- A stored tissue sample from the original diagnosis (or from when the cancer returned) must be available.
- The cancer must be measurable and shown to be growing according to standard imaging guidelines (RECIST 1.1).
- People whose cancer did not respond to, or came back after, at least one chemotherapy treatment that included platinum-based drugs.
- People who have had exactly one chemotherapy treatment plan for this cancer (which may have included radiation alongside chemotherapy, or follow-up maintenance therapy).
- People who are not currently being treated for an active infection with antibiotics.
- Any hormone therapy aimed at the cancer must have been stopped at least one week before starting the trial (hormone replacement therapy for other reasons may continue).
- People who are generally well enough to carry out light activity and care for themselves (ECOG Performance Status of 0 or 1 — confirm with trial site what this means for a specific situation).
- People with a life expectancy of more than 2 months.
- People whose blood counts meet minimum levels: platelets at or above 100,000/mm³, neutrophils (a type of white blood cell) at or above 1,500/mm³, and haemoglobin above 9 g/dL.
- People whose liver and kidney function tests fall within acceptable ranges as determined by blood tests (confirm specific values with trial site).
- People whose blood clotting results are within acceptable ranges, or who are on blood thinners with their levels kept within the intended treatment range.
- People with normal blood pressure, or whose blood pressure is well controlled (systolic at or below 140 mmHg and/or diastolic at or below 90 mmHg).
- People taking corticosteroid medication, provided the dose has been stable and at or below 10 mg/day (prednisone equivalent) for at least 4 weeks before starting the trial.
- People who agree not to donate blood during the trial or for 90 days after the last dose of the study treatment.
- People who are not able to become pregnant, or people of childbearing potential who have a negative pregnancy test within 72 hours before starting the treatment and who agree to use highly effective contraception from screening through to 4 months after the last dose.
- People who agree not to breastfeed during the trial and for 4 months after the last dose.
- People who are able to swallow and take oral (by mouth) medications.
- Women aged 18 or older at the time of signing the consent form.
- People who have read and signed the approved consent form agreeing to take part.
- For participants in France only: people who are affiliated with, or covered by, a French social security scheme.
Who may not be able to join:
- People who are already enrolled in another interventional clinical trial (trials involving only biological samples may be considered with sponsor approval — confirm with trial site).
- People who have previously been treated with niraparib, any other PARP inhibitor drug, or any PD-1/PD-L1 immunotherapy drug.
- People who have received investigational therapy, immunotherapy, chemotherapy, or biological therapy within the past 4 weeks (or within a period covering at least 5 half-lives of the drug, whichever is longer), or radiotherapy within the past 4 weeks before starting the trial.
- People who have had major surgery within 3 weeks before starting the trial, or who have not yet recovered from surgery.
- People who have already received more than 3 separate cytotoxic (cell-killing) chemotherapy treatments for this cancer.
- People who still have ongoing significant side effects (greater than Grade 1) from previous treatment.
- People with serious heart or blood vessel conditions, including uncontrolled high blood pressure, a heart attack or unstable chest pain within the past 6 months, significant heart rhythm problems, moderate or severe heart failure, significant circulation problems in the limbs, or a stroke within the past 6 months.
- People with other serious ongoing illnesses that, in the doctor's judgement, would make participation unsafe — including serious neurological, psychiatric, infectious, liver, kidney, or digestive conditions, or significant abnormal blood test results.
- People experiencing bowel obstruction that requires intravenous nutrition or fluids, or any digestive condition (including difficulty swallowing) that would prevent proper absorption of the study drugs.
- People who had a severe (Grade 3 or higher) immune-related reaction to a previous immunotherapy treatment.
- People who have received radiation therapy covering more than 20% of the bone marrow within 2 weeks before starting the trial, or any radiation within 1 week before starting.
- People who have a condition that weakens the immune system, or who have been taking steroid medication at more than 10 mg/day (prednisone equivalent) or other immune-suppressing drugs within the 7 days before starting the trial.
- People living with HIV may be excluded unless they meet specific requirements around viral load, CD4 cell count, and stable HIV treatment — these requirements are detailed and would need to be assessed by the trial site directly.
- People with active hepatitis B or hepatitis C infection.
- People with an active autoimmune disease that has required systemic medical treatment (such as immune-suppressing drugs) within the past 2 years. Replacement hormone therapies (such as thyroid medication or insulin) are not considered systemic treatment for this purpose.
- People with a history of interstitial lung disease (scarring or inflammation of the lungs).
- People who have received a live vaccine within 30 days before starting the trial.
- People who have received a blood transfusion (platelets or red blood cells) within 4 weeks before starting the trial.
- People who have received growth factor injections (such as G-CSF or erythropoietin) within 4 weeks before starting the trial.
- People with a known history of myelodysplastic syndrome (MDS) or acute myeloid leukaemia (AML).
- People with cancer that has spread to the brain and is causing symptoms, or cancer affecting the membranes around the brain and spinal cord.
- People who have had another invasive cancer within the past 3 years, or who currently have another invasive cancer, with the exception of certain non-melanoma skin cancers. People whose prior cancer treatment would conflict with this trial are also ineligible.
- People with a known serious allergic reaction to the study drugs or their ingredients.
- People for whom psychological, family, social, or geographical factors could make it difficult to follow the trial schedule and requirements.
- People currently under psychiatric care or admitted to a health or social care institution.
- People whose freedom is restricted by a legal or administrative decision.
- People under a legal protection measure or who are unable to give their own consent.
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Phone: +33184852020
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Response Rate (RR) at 4 months; Overall survival (OS)
Can't join this trial?
Data last synced from ClinicalTrials.gov: 16 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.