A Bidirectional Cohort Study on Prophylactic Resection Surgery in Populations at Moderate-to-High Risk for Hereditary Ovarian Cancer

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexFemale
Age18+
SponsorPeking University Third Hospital

About this trial

The goal of this multi-center observational study is to learn about the effectiveness and safety of different prophylactic (preventive) surgical options in women at moderate-to-high genetic risk for hereditary ovarian cancer (HOC).

The main questions it aims to answer are:

Does individualized prophylactic surgery (such as removing fallopian tubes now and delaying ovary removal) effectively reduce the risk of developing ovarian cancer compared to standard care or close monitoring?

How do these different surgical interventions affect a woman's ovarian function and quality of life?

What Participants Will Do:

Participants who are healthy carriers of specific genetic mutations (such as BRCA1/2, RAD51C/D, etc.) will be followed in a bidirectional cohort. Depending on the medical care and surgical path they choose with their doctors (Standard RRSO, Delayed Oophorectomy, or Close Monitoring), researchers will collect their clinical data, surgical pathology results, and follow-up information regarding cancer incidence and quality of life for 3 years.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Gender: Female. Age: 18 years or older at the time of enrollment.Genetic Risk: Documented carriers of pathogenic or likely pathogenic germline mutations in high-risk ovarian cancer susceptibility genes (including BRCA1, BRCA2, RAD51C, RAD51D, BRIP1, PALB2). Data Availability: Willing to provide informed consent and allow access to clinical records, genetic testing reports, and follow-up data (bidirectional cohort). Psychosocial Status: Ability to complete quality of life and psychological assessment scales (e.g., GCS, SF-36, FSFI).

Disqualifiers

Prior Malignancy: History of ovarian, fallopian tube, or primary peritoneal cancer prior to the baseline intervention. Synchronous Malignancy: Diagnosis of any other advanced-stage malignancy. Inability to Follow-up: Significant psychological, social, or geographical factors that would prevent regular long-term follow-up (3 years). Previous Extensive Pelvic Surgery: History of extensive pelvic surgery that precludes the feasibility of laparoscopic prophylactic salpingectomy or oophorectomy.

Trial population

This study targets Chinese women at moderate-to-high genetic risk for hereditary ovarian cancer (HOC). The population includes documented carriers of pathogenic or likely pathogenic (P/LP) germline mutations in high-risk susceptibility genes, primarily BRCA1 and BRCA2, as well as other HRR-related genes such as RAD51C, RAD51D, BRIP1, and PALB2. The population encompasses both premenopausal and postmenopausal women seeking individualized risk-management strategies.

Trial design

Design model

Cohort

Time perspective

Cross-sectional

Treatments tested in this trial

Not listed

Trial groups

480 Participants
are grouped into 1 trial group
Group A: Label 1: Standard RRSO Group. Label 2: Individualized RS-DO Group. Label 3: Close Monitoring Group

Trial outcomes

Primary outcomes

1

Incidence of Ovarian Cancer

The primary efficacy endpoint is the development of histologically confirmed epithelial ovarian cancer, fallopian tube cancer, or primary peritoneal cancer among high-risk mutation carriers in different intervention groups.

Time frame
From the date of enrollment/surgery up to 15 years.

Secondary outcomes

1

Incidence of Breast Cancer

Occurrence of new-onset breast cancer during the follow-up period, particularly for BRCA1/2 mutation carriers.

Time frame
From the date of enrollment up to 15 years.
2

Incidence of Serous Tubal Intraepithelial Carcinoma (STIC)

Frequency of STIC or occult invasive carcinoma detected in the surgical specimens of the fallopian tubes, examined using the standardized SEE-FIM pathological protocol.

Time frame
At the time of prophylactic surgery (approx. 1 day)
3

Comprehensive Assessment of Quality of Life and Menopausal Symptoms

A multi-dimensional evaluation of the participants' physical and endocrine-related health status using Greene Climacteric Scale (GCS), SF-36 Health Survey and other scales.

Time frame
Baseline, 1 month, 6 months and 1 year post-enrollment.
4

Evaluation of Psychological Distress

An assessment of the psychosocial impact of prophylactic surgery and cancer-related anxiety using Cancer Worry Scale (CWS), Female Sexual Distress Scale (FSDS) and other scales.

Time frame
Baseline, 1 month, 6 months and 1 year post-enrollment.

Other outcomes

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