Personalised Timing of Interval Debulking Surgery in Advanced Ovarian Cancer

Recruiting now · Phase 2

Conditions studied: Ovarian Cancer, Fallopian Tube Cancer, Peritoneal Cancer

In brief

About 70% of epithelial ovarian cancer patients are diagnosed at advanced stage. When primary optimal surgery is not possible, neoadjuvant chemotherapy will followed by interval debulking surgery is one treatment option. However, there is no consensus on the optimal timing of the surgery. CA125 is a well-known tumor marker in ovarian cancer. Its kinetic change has been proven to correlate with the patients' response to chemotherapy and chance of optimal resection. This study aims to utilize the kinetic change of CA125 to customize the timing of surgery for individual patients.

Key facts

Study ID

NCT07022535

Run by

The University of Hong Kong

People needed

18

Starts

2024-05-28

Expected to finish

2025-12-31

Last updated by the study team

2025-07-02

Who can join

Age: 18 and older. Sex: female. Healthy volunteers: not accepted.

You may qualify if…

• Patients must be at least 18 years old.
• Patients who have Eastern Cooperative Oncology Group (ECOG) score 0-1.
• Patients who are competent to give informed consent.
• Patients who have stage III-IV histologically or cytologically confirmed epithelial ovarian cancer, fallopian tube or primary peritoneal cancer not amenable for primary debulking surgery (PDS).
• Patients who are planned for neoadjuvant chemotherapy (NACT) using platinum-based chemotherapy +/- bevacizumab or biosimilar. Those who are receiving NACT before interval debulking surgery (IDS) are also eligible.
• Patients who have an evaluable CA125 level at baseline (i.e., baseline level is at least 2x upper limit of normal).
• Patients who have baseline computed tomography of at least abdomen and pelvis, or positron emission tomography (PET)-CT. Magnetic resonance imaging (MRI) is also acceptable but the same modality has to be used when assessing the feasibility of IDS.
• Patients who agree to undergo IDS, where the time of IDS may differ from the usual clinical practice.
• Patients who agree to receive adjuvant chemotherapy, if clinically indicated. The total number of chemotherapy should be at least four or above.

You may not qualify if…

• Patients who have borderline malignancy, or non-epithelial ovarian cancer like germ cell or sex cord tumor, or metastatic diseases from other origins like Krukenberg's tumor
• Patients who are eligible for PDS
• Patients who are not fit for PDS because of medical morbidities or refusal of operation
• Patients who have already started NACT outside the study centres, except those who have just had one cycle within 21 days and the baseline CA125 is available.
• Patients who are pregnant

Where it is running

• The University of Hong Kong — Hong Kong, Hong Kong (enrolling)

Full record on ClinicalTrials.gov

Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.