Outcomes of First-line Olaparib Mono-maintenance therapy-a Multicenter, Retrospective Study Using Data From Real-world Clinical Setting

NCT ID: NCT05153603

Last Updated: 2021-12-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-04-30

Study Completion Date

2022-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Four phase III trials in ovarian cancer consistently showed that front-line poly(ADP-ribose) polymerase (PARP) inhibition can significantly improve progression-free survival. Based on these findings, current clinical guidelines recommend the olaparib + bevacizumab combination as a maintenance therapy for ovarian cancer patients with BRCA1/2 wild-type or unknown mutation status who have a complete response (CR)/ partial response (PR) after completing bevacizumab-containing first-line therapy. However, bevacizumab is not a NATIONAL MEDICAL PRODUCTS ADMINSTRATION(NMPA)-approved agent for ovarian cancer patients. In this setting, olaparib mono-maintenance therapy has been implemented among patients with BRCA-wild type tumors in clinical practice in China.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The main objective is to evaluate the outcome of olaparib-based maintenance therapy by proportion of patients alive and progression free at 1 year (1-yr PFS rate) We hypothesize that olaparib monotherapy could be beneficial for tBRCAwt high-grade serous ovarian cancer (HGSOC) patients who are treated with platinum-based first-line chemotherapy.

The secondary objectives are to evaluate the outcomes of olaparib-based maintenance therapy by: 1) 2-yr PFS rate; 2) median PFS; 3) median Time to First Subsequent Therapy or death (mTFST) ; 4) post-progression treatment after first progression; 5) reason for olaparib dose adjustment, dose interruptions, and dose discontinuations; 6) Reason for use of concomitant therapy.

The exploratory objective is to evaluate the status quo of genetic testing, R0 resection and related outcomes.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Ovarian Neoplasms

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

tBRCA, olaparib

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Olaparib mono-maintenance therapy group

Olaparib monotherapy in clinical practice and will be conducted in patients with tBRCAwt newly diagnosed high grade epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in response (complete response or partial response) to platinum-based chemotherapy following the standard of care from Aug 2018 up to Dec 2020 (the time range could be extended in order to recruit enough eligible subjects as required) at tertiary-referral university hospitals and main cancer centers in China.

Olaparib mono-maintenance therapy

Intervention Type DRUG

Olaparib mono-maintenance therapy in patients with newly diagnosed, histologically confirmed, advanced (FIGO stage III-IV) ovarian cancer, primary peritoneal cancer and / or fallopian-tube cancer is defined as drug exposure. At least one dose of olaparib tablets monotherapy as maintenance therapy will be required.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Olaparib mono-maintenance therapy

Olaparib mono-maintenance therapy in patients with newly diagnosed, histologically confirmed, advanced (FIGO stage III-IV) ovarian cancer, primary peritoneal cancer and / or fallopian-tube cancer is defined as drug exposure. At least one dose of olaparib tablets monotherapy as maintenance therapy will be required.

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

Patients are eligible to be included in the study only if they met all the following criteria:

* Female Patients must be ≥18 years old at diagnosis.
* Patients with newly diagnosed, histologically confirmed, advanced (FIGO stage III-IV) ovarian cancer, primary peritoneal cancer and / or fallopian-tube cancer and received olaparib from Aug 2018 up to Dec 2020 (the time range could be extended in order to recruit enough eligible subjects as required).
* Patients must have a tumor BRCA testing result which is tBRCAwt, defined as tumor BRCA wild type (patients without evidence of BRCA 1 and/or BRCA 2 deleterious or suspected deleterious mutations).
* Patients who have completed first-line platinum-based chemotherapy and were in clinical complete response (CR) or in partial response (PR).
* Patients who were still in CR or PR before receiving maintenance therapy.
* Patients who received at least one dose of olaparib tablets monotherapy as maintenance therapy within three months after platinum-based chemotherapy and without disease progression.

Exclusion Criteria

Patients are excluded if any of the following factors were present:

* Patient with multiple primary cancers as reported in EMR.
* Concomitant any anti- cancer therapy (chemotherapy, immunotherapy, hormonal therapy (Hormone replacement therapy (HRT) is acceptable), radiotherapy, biological therapy or other novel agent) during Olaparib maintenance.
* Any previous treatment with PARP inhibitor.
* Patients with myelodysplastic syndrome/acute myeloid leukaemia or with features suggestive of MDS/AML.
* Patients with symptomatic uncontrolled brain metastases.
* Any other concerns related to decreased efficacy and safety of maintenance therapy.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Zhong-qiu Lin, MD, PhD,Professor

Role: STUDY_CHAIR

Department of Gynecologic Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University

Jing Li, MD, PhD,Professor

Role: PRINCIPAL_INVESTIGATOR

Department of Gynecologic Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Zhong-qiu Lin, MD, PhD, Professor

Role: CONTACT

Phone: (86) 020-34078521

Email: [email protected]

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

ESR-20-20889-02

Identifier Type: -

Identifier Source: org_study_id