Personalized Timing of Interval Debulking Surgery in Advanced Ovarian Cancer

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexFemale
Age18+
SponsorThe University of Hong Kong

About this trial

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 and compare this with the standard clinical practice.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients aged 18 years old or older

Patients with Eastern Cooperative Oncology Group score 0-1 within 28 days prior to recruitment

Patients who can sign the informed consent

Patients with stage III-IV histologically or cytologically confirmed epithelial ovarian cancer (EOC), fallopian tube or primary peritoneal cancer not amenable for PDS

Disqualifiers

Patients who have borderline malignancy, or non-EOC like germ cell or sex cord tumor, or metastatic diseases from other origins

Patients with mucinous and neuroendocrine histology

Patients with history of other malignancies within five years

Patients who are eligible for primary debulking surgery (PDS)

Trial design

Design model

Parallel

Treatments tested in this trial

  • KELIM

    Diagnostic test

    (i) Patients with KELIM =\>1 will receive radiological assessment and undergo internal debulking surgery if the disease is operable. (ii) Patients with KELIM \<1 will have alternative management, such as addition of bevacizumab or changing to dose-dense chemotherapy, and defer the interval debulking surgery

  • Carboplatin plus Paclitaxel

    Drug

    Neoadjuvant chemotherapy

  • Interval debulking surgery

    Procedure/Surgery

    Interval debulking surgery

Treatment groups

126 Participants
are divided into 2 treatment groups
Group A: Standard clinical practiceActive comparator 2 interventions
Group B: Personalised managementExperimental treatment 3 interventions

Trial outcomes

Primary outcomes

1

Complete resection (CC0) rate

The likelihood of CC0 in patients who undergo IDS when KELIM reaches \>=1

Time frame
up to 24 weeks from randomisation
2

12-month progression-free survival (PFS) rate by RECIST criteria

PFS is defined as the time from the date of randomization until the date of progressive disease or death (whichever comes first).

Time frame
up to 24 months from randomisation

Secondary outcomes

1

Chemotherapy response score (CRS)

CRS of omentum removed during interval debulking surgery CRS 1, there is no or minimal tumor response; CRS 2, there is appreciable tumor response amidst viable tumor; CRS 3, there is complete or near complete response with no residual tumor or minimal irregularly scattered tumor foci seen as individual cells, cell groups or nodules up to 2 mm

Time frame
up to 24 weeks from randomisation
2

Progression-free survival (PFS) by RECIST criteria

PFS is defined as the time from the date of randomization until the date of progressive disease or death (whichever comes first).

Time frame
up to 5 years from randomisation
3

Overall survival (OS)

OS is defined as the time from the date of randomization until death due to any cause.

Time frame
Up to 5 years from randomisation
4

Incidence of adverse events

The complication rates of surgery based on the Clavien-Dindo classification and chemotherapy based on the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE)

Time frame
up to 1 year from randomisation

Other outcomes

1

Expression of biomarkers

Expression levels of biomarkers before and after chemotherapy

Time frame
up to 1 year from randomisation

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

The University of Hong Kong

Lead sponsor

Queen Mary Hospital, Hong Kong

Collaborator

United Christian Hospital

Collaborator

Pamela Youde Nethersole Eastern Hospital

Collaborator

The University of Hong Kong-Shenzhen Hospital

Collaborator

Sun Yat-Sen University Cancer Center

Collaborator