Niraparib Maintenance Treatment in Patients With Newly Diagnosed Advanced Platinum- Sensitive, OC. The First Poland RWE Study.

NCT06614790RecruitingOBSERVATIONAL

Summary

Key Facts

Lead Sponsor

Pomeranian Medical University Szczecin

Enrollment

300

Start Date

2024-09-02

Completion Date

2025-12-30

Study Type

OBSERVATIONAL

Official Title

Patient Outcomes and Safety of Niraparib as Maintenance Treatment in Patients With Newly Diagnosed Advanced Platinum- Sensitive, Ovarian Cancer. The First Real-World Evidence Study From Poland.

Interventions

Niraparib 200/300 MG

Conditions

Ovarian Cancer

Eligibility

Age Range

18 Years+

Sex

FEMALE

Inclusion Criteria:

1. Patients must be female, ≥18 years of age, able to understand the study procedures, and agree to participate in the study by providing written informed consent.
2. Patients with a histologically confirmed diagnosis of nonmucinous high - grade epithelial ovarian cancer (serous, endometrial) that is stage III or IV according to the FIGO criteria.
3. All patients with Stage IV disease are eligible. This includes those with inoperable disease, those who undergo PDS (R0 or macroscopic disease), or those for whom NACT is planned.
4. Patients with Stage III are eligible if they meet the following criteria:

   1. All FIGO III patients in spite of residual disease and cytoreductive surgery.
   2. All patients with inoperable Stage III disease.
   3. All Stage III patients after NACT chemotherapy.
5. FFPE tumor tissue sample must be available for molecular analysis.
6. Patients of childbearing potential must have a negative serum or urine pregnancy test (beta human chorionic gonadotropin) within 72 hours prior to receiving the first dose of study treatment.
7. Patients must be postmenopausal, free from menses for \>1 year, surgically sterilized, or willing to use highly effective contraception to prevent pregnancy (see 0) or must agree to abstain from activities that could result in pregnancy throughout the study, starting with enrollment through 180 days after the last dose of study treatment.

   1. Serum creatinine ≤1.5 × upper limit of normal (ULN) or calculated creatinine clearance ≥60 mL/min using the Cockcroft-Gault equation
   2. Total bilirubin ≤1.5 × ULN or direct bilirubin ≤1.5 × ULN
   3. AST and ALT ≤2.5 × ULN unless liver metastases are present, in which case they must be ≤5 × ULN
8. Patients must have an ECOG score of 0 or 1.
9. Patients must have normal BP or adequately treated and controlled hypertension.
10. Patients must be able to take oral medication.

Exclusion Criteria:

1. Patient has mucinous, germ cell, transitional cell, or undifferentiated tumor.
2. Patient has low-grade or Grade 1 epithelial ovarian cancer.
3. Patient has a known condition, therapy, or laboratory abnormality that might confound the study results or interfere with the patient's participation for the full duration of the study treatment in the opinion of the Investigator.
4. Patient is pregnant or is expecting to conceive children while receiving study drug or for up to 180 days after the last dose of study drug. Patient is breastfeeding or is expecting to breastfeed within 30 days of receiving the final dose of study drug (women should not breastfeed or store breastmilk for use, during niraparib treatment and for 30 days after receiving the final dose of study treatment).
5. Patient has any known history or current diagnosis of MDS or AML.
6. Hypersensitivity to the active substance or to any of the excipients including tartrazine.
7. Hypertension-Participants have systolic BP \>140 mmHg or diastolic BP \>90 mmHg that has not been adequately treated or controlled.
8. Patients with prior history of PRES.

Outcome Measures

Primary Outcomes

Safety and tolerability.

Safety and tolerability of niraparib treatment in Poland. Strict monitoring of safety profile (e.g. blood test is performed every 7 days during first month of treatment and after each changing of dose, blood pressure is performed every 7 days within the first two months then every month within the first year).

Time frame: 27 months

PFS measured from the time of the first dose of niraparib.

The primary PFS analysis will be based upon the Investigator's assessment per Response Evaluation Criteria in Solid Tumors (RECIST) v.1.1 criteria, Appendix 2. The day considered as disease progression is the day of the CT examination on which progression was found according to RECIST 1.1 criteria. PFS is defined as the time from first dose of niraparib starting until objective tumor progression or death.

Time frame: 48 months

Secondary Outcomes

Chemosensitivity based on KELIM.

Chemosensitivity based on KELIM as a surrogate marker for platinum sensitivity to assess for niraparib response as a standard procedure due to the B.50 drug program.I will be measured after the chemotherapy based on CA125 making during the first 100 days of treatment.

Time frame: 100 days

OS (Overall Survival).

Overall survival is defined as the time from the start of therapy to the day of patient's death to any cause.

Time frame: 48 months

PFS depending on starting niraparib therapy.

Evaluation of outcomes of including patients in therapy up to 4, 8, 12 weeks after completion of platinum-based chemotherapy

Time frame: 48 months

DCR (Disease Control Rate).

Disease control rate (DCR) is defined as the percentage of patients who have achieved complete response, partial response, and stable disease to the niraparib intervention.

Time frame: 48 months

TFST (Time to the First Subsequent Therapy).

TFST is defined as the time from initiation of first-line chemotherapy until the start of subsequent therapy or death.

Time frame: 48 months

Locations

Oddział Onkologii Ginekologicznej Białostockiego Centrum Onkologii, Bialystok, Poland

Klinika Położnictwa i Ginekologii, Ginekologii Onkologicznej Uniwersyteckie Centrum Kliniczne, Gdansk, Poland

III Klinika Radioterapii i Chemioterapii Narodowego Instytutu Onkologicznego w Gliwicach, Gliwice, Poland

Świętokrzyskie Centrum Onkologii, Kielce, Poland

Klinika Ginekologii Onkologicznej Narodowego Instytutu Onkologicznego w Krakowie, Krakow, Poland

I Katedra i Klinika Ginekologii Onkologicznej i Ginekologii Uniwersytetu Medycznego w Lublinie, Lublin, Poland

Opolskie Centrum Onkologii, Opole, Poland

Oddział Onkologii Klinicznej i Radioterapii, Siedleckie Centrum Onkologii, Siedlce, Poland

Klinika Ginekologii Operacyjnej i Onkologii Ginekologicznej Dorosłych i Dziewcząt PUM, Szczecin, Poland

Klinika Ginekologii Operacyjnej i Onkologii Ginekologicznej Dorosłych i Dziewcząt PUM, Szczecin, Poland

, Klinika Ginekologii Onkologicznej, Centrum Onkologii-Instytut im. Marii Skłodowskiej-Curie w Warszawie, Warsaw, Poland

Klinika Ginekologii Onkologicznej, Centrum Onkologii-Instytut im. Marii Skłodowskiej-Curie w Warszawie, Warsaw, Poland