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TerminatedPhase 2

Functional Analysis of BRCAness

Key facts

Who runs it
Leiden University Medical Center
Where
Netherlands3 sites in 1 countryChoose a country to see its sites
Trial code
Status
Terminated
Phase
Phase 2
People taking part
27 people enrolled
Started
21 Jan 2019
Ended
31 Dec 2024
Type of study
Interventional
Treatments tested
  • Functional RAD51 assay
  • Olaparib Oral Product
Record updated
17 February 2026
Why it stopped
recruitment was lower than expected (28/55) due to registration of the IMP in the first and second line treatment

Who can take part

Age
18 years and older
Sex
Women only
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 30 criteriaShow less

Who can take part

  • Patients with recurrent high grade serous or endometrioid EOC (more than 3 months after platinum containing chemotherapy and unwilling or ineligible for platinum based therapy) with a tumor lesion that is amendable for biopsy or who can undergo ascites drainage prior to treatment
  • Diagnosis of high grade serous or endometrioid EOC confirmed by histology
  • Provision of informed consent prior to any study specific procedures
  • Female aged equal or above 18 years
  • Patients must have normal organ and bone marrow function measured within 28 days prior to administration olaparib
  • Eastern Cooperative Oncology Group performance status 0 to 2
  • Patients must have a life expectancy equal or above 16 weeks
  • Postmenopausal or evidence of nonchildbearing status for women of childbearing potential, negative urine or serum pregnancy test within 28 days of study treatment and confirmed prior to treatment on day 1
  • Patients willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations
  • Evaluable disease, measurable and, or nonmeasurable, that can be accurately assessed at baseline using RECIST by CT or MRI and is suitable for repeated assessment
  • For inclusion in the optional exploratory genetic research and the optional biomarker research, patients must fulfil informed consent for genetic research and informed consent for biomarker research

Who cannot take part

  • Participation in another clinical study with an investigational product during the last month
  • Any previous treatment with PARP inhibitor, including olaparib
  • Other malignancy within the last 5 years, except, adequately treated nonmelanoma skin cancer, curatively treated in situ cancer, stage 1 and grade 1 endometrial carcinoma, or other solid tumours including breast cancer and lymphomas curatively treated with no evidence of disease for equal or above 3 years
  • Patients receiving radiotherapy within 3 weeks prior to study treatment
  • Concomitant use of known strong CYP3A inhibitors or moderate CYP3A inhibitors
  • Concomitant use of known strong or moderate CYP3A inducers
  • Patients with symptomatic uncontrolled brain metastases. Patients with spinal cord compression unless considered to have received definitive treatment for this and evidence of clinically stable disease for 28 days
  • Major surgery within 2 weeks of starting study treatment and patients must have recovered from any effects of any major surgery
  • Previous allogenic bone marrow transplant or double umbilical cord blood transplantation
  • Whole blood transfusions in the last 120 days prior to entry to the study
  • Persistent toxicities , Common Terminology Criteria for Adverse Event equal or above grade 2, caused by previous cancer therapy, excluding alopecia
  • Patients considered a poor medical risk due to a serious, uncontrolled medical disorder, nonmalignant systemic disease or active, uncontrolled infection
  • Patients unable to swallow orally administered medication and patients with gastrointestinal disorders likely to interfere with absorption of the study medication
  • Patients with a known hypersensitivity to olaparib or any of the excipients of the product
  • Patients with known active hepatitis due to risk of transmitting the infection through blood or other body fluids
  • Patients with myelodysplastic syndrome, acute myeloid leukaemia or with features suggestive of MDS, AML
  • Resting ECG with QTc equal or above 470 msec on 2 or more time points within a 24 hour period or family history of long QT syndrome
  • Breast feeding women
  • Immunocompromised patients, for example, patients who are known to be serologically positive for human immunodeficiency virus

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

PARP inhibitors are most effective in homologous recombinant (HR) deficient tumors. There are clear indications that besides BRCA1 or BRCA2 mutated EOC, there is an additional group of EOC having deficiencies in HR (i.e. BRCAness) that might benefit from treatment with PARP inhibitors. Assessment of HR in high grade EOC might therefore serve as a better predictive biomarker and allow the identification of a larger group of patients that could benefit most from platinum based chemotherapy and maintenance treatment with a PARP inhibitor. We recently developed a robust ex vivo functional assay (RAD51 assay;) to test HR in viable tumor tissue. In the proposed study, we will evaluate whether the RAD51 assay predicts sensitivity to therapy with olaparib, in patients with recurrent EOC. With the RAD51 assay we aim to identify a larger number of patients who will benefit from treatment with the PARP inhibitor olaparib than patients with a germline or somatic BRCA mutation only. Furthermore, we aim to identify molecular markers (including genomic markers) that are associated with the outcome of the RAD51 assay. Finally, we will explore whether these molecular markers can be measured in liquid biopsies by analysing ctDNA.

The group in the trial

  • Olaparib monotherapyTreatment being tested

    Patients, irrespective of BRCA status, will be treated with olaparib tablet 300 mg bid

    Treatment: Functional RAD51 assay and Olaparib Oral Product

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Correlation Between Homologous Recombination Deficiency and Response to Olaparib in Patients With Recurrent Epithelial Ovarian Cancer (EOC)
Record updated
17 February 2026