PARP Inhibitor Oral Maintenance in Low-Risk Ovarian Cancer
POLO
A Phase IV Open-label, Multicenter Study of Niraparib as Maintenance Therapy in BRCA Wild-type, Newly Diagnosed Advanced Ovarian Cancer Patients in Korea
1 other identifier
interventional
102
0 countries
N/A
Brief Summary
This study is the phase IV, open-label, clinical trial to determine the efficacy of niraparib maintenance therapy in BRCA1/2 wild-type, advanced-stage, low-risk, primary ovarian cancer patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_4
Started Jan 2022
Longer than P75 for phase_4
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 19, 2021
CompletedStudy Start
First participant enrolled
January 1, 2022
CompletedFirst Posted
Study publicly available on registry
January 11, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2025
CompletedJanuary 26, 2022
January 1, 2022
3.9 years
December 19, 2021
January 10, 2022
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Progression-free survival (12 month PFS rate)
To determine the clinical effectiveness of the study treatment assessed using progression free survival (12 months) according to RECIST v1.1 criteria (Investigator determined)
12 months
Secondary Outcomes (4)
Progression-free survival
36 months
Overall survival (OS)
36 months
Time to second objective disease progression (PFS2)
36 months
Time to second subsequent treatment (TSST)
36 months
Other Outcomes (1)
12 month PFS rate by homologous recombination deficiency (HRD) status
12 months
Study Arms (1)
Experimental
EXPERIMENTALBRCA1/2 wild-type, advanced-stage, low-risk, primary ovarian cancer patients (high-grade serous or high-grade endoemtrioid)
Interventions
Niraparib 200mg or 300mg (once daily \[QD\])\* \*The recommended starting dosage of niraparib is 200mg QD. For patients who weigh ≥77 kg and have baseline platelet count ≥150,000/μL, the recommended starting dosage is 300 mg QD.
Eligibility Criteria
You may qualify if:
- Participant has histologically confirmed diagnosis of FGIO stage III-IV high-grade serous or high-grade endometrioid ovarian cancer, primary peritoneal cancer, or fallopian tube cancer will be enrolled in this study.
- Participant has confirmed as both germline and somatic BRCA1/2 wild-type by institution's test.
- Participant has no visible residual tumor after primary cytoreductive surgery (or optimally debulked) and has responded to the postoperative platinum-based combination chemotherapy (complete or partial response), remains in response, and is enrolled on study within 12 weeks of completion of the last platinum regimen
- Participant who is able to provide tumor slides obtained during cytoreductive surgery for a prospective examination of the homologous recombination deficiency (HRD).
- Female participants who are at least 20 years of age on the day of signing informed consent with
- Participant has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1, as assessed within 10 days prior to enrollment.
- Participant is eligible to participate if she is not pregnant (see Appendix 2), not breastfeeding, and at least one of the following conditions applies:
- Not a woman of childbearing potential (WOCBP) as defined in Appendix 2 OR
- A WOCBP who agrees to follow the contraceptive guidance in Appendix 2 during the treatment period and for at least 180 days following the last dose of niraparib.
- The participant (or legally acceptable representative if applicable) provides written informed consent for the trial. The participant may also provide consent for future biomedical research; however, the participant may participate in the main study without participating in future biomedical research.
- Participant has adequate organ function as defined in the following table (Table 1).; all screening laboratory tests should be performed within 10 days prior to the start of study treatment.
You may not qualify if:
- Participant has mucinous, germ cell, or borderline tumor of the ovary.
- Participant receives neoadjuvant chemotherapy before cytoreductive surgery.
- Participant has a visible residual tumor after primary cytoreductive surgery.
- Participant receives bevacizumab with front-line platinum-based combination chemotherapy.
- Participant has a history of non-infectious pneumonitis that required treatment with steroids or currently has pneumonitis.
- Participant either has myelodysplastic syndrome (MDS)/ acute myeloid leukemia (AML) or has features suggestive of MDS/AML.
- Participant has a known additional malignancy that is progressing or has required active treatment within the past 2 years.
- Note: Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ (e.g. breast carcinoma, cervical cancer in situ, endometrial carcinoma) that have undergone potentially curative therapy are not excluded.
- Note: Participants with synchronous primary endometrial cancer or a past history of primary endometrial cancer that met the following conditions are not excluded: Stage not greater than IA: no more than superficial myometrial invasion.
- Drainage of ascites during the last 2 cycles of last chemotherapy.
- Palliative radiotherapy within 1 week encompassing \>20% of the bone marrow.
- Persistent \>grade 2 toxicity from prior cancer therapy.
- Symptomatic uncontrolled brain or leptomeningeal metastases. A scan to confirm the absence of brain metastases is not required. Patients with spinal cord compression may be considered if they have received definitive treatment for this and evidence of clinically stable disease for 28 days.
- Major surgery within 3 weeks of starting the study or patient has not recovered from any effects of any major surgery.
- Patients considered a 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, or any psychiatric disorder that prohibits obtaining informed consent.
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Seoul National University Hospitallead
- Yonsei Universitycollaborator
- Asan Medical Centercollaborator
- Samsung Medical Centercollaborator
- Takedacollaborator
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jae-Weon Jae-Weon, MD, PhD
Seoul National University Hpospital
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Seoul National University Hospital
Study Record Dates
First Submitted
December 19, 2021
First Posted
January 11, 2022
Study Start
January 1, 2022
Primary Completion
December 1, 2025
Study Completion
December 1, 2025
Last Updated
January 26, 2022
Record last verified: 2022-01