Olaparib in Patients With Recurrent Ovarian Cancer Wild Type for Germline and Somatic BRCA 1 and 2 Genes: The MITO 31 Translational Study

  • End date
    Sep 1, 2022
  • participants needed
  • sponsor
    National Cancer Institute, Naples
Updated on 13 March 2021


The aim of the study is to explore a prognostic clinical and molecular biomarker profile in a population of BRCA wild-type recurrent high-grade ovarian cancer patients treated with olaparib as maintenance after response to a platinum based therapy as platinum sensitive recurrence treatment.


This is a single arm, open-label Phase 2 study designed to evaluate the effect of maintenance olaparib treatment after response to platinum-based chemotherapy in patients with BRCA wild type platinum sensitive recurrent ovarian cancer. The goal is to identify a clinical and molecular profile able to select a group of patients, treated with olaparib as maintenance, with a favorable prognosis.

Condition BRCA Wild Type Platinum Sensitive Recurrent Ovarian Cancer
Treatment Olaparib tablets
Clinical Study IdentifierNCT04091204
SponsorNational Cancer Institute, Naples
Last Modified on13 March 2021


Yes No Not Sure

Inclusion Criteria

Patients must be 18 years of age
Female patients with histologically diagnosed relapsed high grade ovarian cancer (including primary peritoneal and /or fallopian tube cancer)
Documented absence of somatic and germline mutations of BRCA1 or BRCA2 genes, that is predicted to be deleterious or suspected deleterious
ECOG Performance Status of 0-2
Patients must have a life expectancy of at least 16 weeks
Signed informed consent obtained prior to initiation of any study-specific procedures and treatment as confirmation of the patient's awareness and willingness to comply with the study requirements
Availability of tumor and blood samples for molecular analyses
Patients who have received at least 2 previous line of platinum containing therapy prior to randomization
For the penultimate chemotherapy course prior to enrolment on the study
Patient defined as platinum sensitive after this treatment, defined as having disease progression greater than 6 months after completion of their last dose of platinum chemotherapy
For the last chemotherapy course immediately prior to randomization on the
Patients must be, in the opinion of the investigator, in radiologic response (partial or complete response) according to RECIST 1.1 criteria, or may have no evidence of disease (if optimal cytoreductive surgery was conducted prior to chemotherapy), and no evidence of a rising CA-125 compared to nadir value, following completion of this chemotherapy course i. Patient must have received, at least 4 cycles of a platinum based chemotherapy regimen (e.g. carboplatin or cisplatin per standard clinical practice) j. Patients must be enrolled within 8 weeks of their last dose of chemotherapy k. Maintenance treatment, including bevacizumab, is allowed at the end of the penultimate platinum regimen l. Postmenopausal or evidence of non childbearing 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 m. Patients must have normal organ and bone marrow function measured within 28 days prior to administration of study treatment as defined below
Hemoglobin 10.0 g/dL with no blood transfusion in the past 28 days
Absolute neutrophil count (ANC) 1.5 x 109/L
Platelet count 100 x 109/L
Total bilirubin 1.5 x institutional upper limit of normal (ULN)
Aspartate aminotransferase (AST) (Serum Glutamic Oxaloacetic Transaminase (SGOT)/ Alanine aminotransferase (ALT) (Serum Glutamic Pyruvate Transaminase (SGPT) 2.5 x institutional upper limit of normal unless liver metastases are present in which case they must be 5x ULN
Patients must have creatinine clearance estimated using the Cockcroft-Gault equation of 51 mL/min
Estimated creatinine clearance= (140-age [years]) x weight (kg) (x F)a serum
creatinine (mg/dL) x 72 a where F=0.85 for females and F=1 for males

Exclusion Criteria

History or evidence of synchronous primary endometrial carcinoma, unless all of the following criteria related to the endometrial carcinoma are met
stage IA
no more than superficial myometrial invasion
no lymph vascular invasion
not poorly differentiated (grade 3 or papillary serous or clear cell carcinoma)
Other malignancy within the last 5 years, except for adequately treated non melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinomna in situ (DCIS), stage 1, grade 1 endometrial carcinoma, or other solid tumours including lymphomas (without bone marrow involvement) curatively treated with no evidence of disease for > 5years
Resting ECG with QTc > 470 msec on 2 or more time points within a 24 hour period or family history of long QT syndrome
Participation in another clinical study with an investigational product during the chemotherapy course immediately prior to randomization
Patients receiving any systemic radiotherapy (except for palliative reasons) within 3 weeks prior to study treatment
Concomitant use of known strong CYP3A inhibitors (e.g. itraconazole, telithromycin, clarithromycin, protease inhibitors boosted with ritonavir or cobicistat, indinavir, saquinavir, nelfinavir, boceprevir, telaprevir) or moderate CYP3A inhibitors (e.g. ciprofloxacin, erythromycin, diltiazem, fluconazole, verapamil). The required washout period prior to starting olaparib is 2 weeks
Concomitant use of known strong (e.g. phenobarbital, enzalutamide, phenytoin, rifampicin, rifabutin, rifapentine, carbamazepine, nevirapine and St John's Wort ) or moderate CYP3A inducers (eg. bosentan, efavirenz, modafinil). The required washout period prior to starting olaparib is 5 weeks for enzalutamide or phenobarbital and 3 weeks for other agents
Persistent toxicities [>Common Terminology Criteria for Adverse Event (CTCAE) grade 2)] caused by previous cancer therapy, excluding alopecia
Patients with myelodysplastic syndrome/acute myeloid leukaemia or with features suggestive of MDS/AML
Patients with symptomatic uncontrolled brain metastases. A scan to confirm the absence of brain metastases is not required. The patient can receive a stable dose of corticosteroids before and during the study as long as these were started at least 4 weeks prior to treatment
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
Patients considered at poor medical risk due to a serious, uncontrolled medical disorder, non-malignant systemic disease or active, uncontrolled infection. Examples include, but are not limited to, uncontrolled ventricular arrhythmia, recent (within 3 months) myocardial infarction, uncontrolled major seizure disorder, unstable spinal cord compression, superior vena cava syndrome, extensive interstitial bilateral lung disease on High Resolution Computed Tomography (HRCT) scan or any psychiatric disorder that prohibits obtaining informed consent
Patients unable to swallow orally administered medication and patients with gastrointestinal disorders likely to interfere with absorption of the study medication
Breast-feeding women
Immunocompromised patients, e.g., patients who are known to be serologically positive for human immunodeficiency virus (HIV)
Patients with a known hypersensitivity to olaparib or any of the excipients of the product
Patients with known active hepatitis (i.e. Hepatitis B or C) due to risk of transmitting the infection through blood or other body fluids
Previous allogenic bone marrow transplant or double umbilical cord blood transplantation (dUCBT)
Whole blood transfusions in the last 120 days prior to entry to the study (packed red blood cells and platelet transfusions are acceptable)
Any previous treatment with PARP inhibitor, including olaparib
Involvement in the planning and/ or conduct of the study
Previous enrolment in the present study
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