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Timing of Surgery After Neoadjuvant Chemotherapy for Advanced Ovarian Cancer

Timing of Surgery After Neoadjuvant Chemotherapy for Advanced Ovarian Cancer: A Randomized Clinical Trial for Early Versus Delayed Interval Cytoreductive Surgery

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06404671
Enrollment
250
Registered
2024-05-08
Start date
2023-09-15
Completion date
2029-03-20
Last updated
2024-05-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ovarian Epithelial Cancer

Keywords

high grade serous, advanced primary ovarian cancer, interval cytoreduction

Brief summary

Ovarian cancer is among the top five primary causes of cancer-related mortality in women. Most ovarian malignant tumours originate from epithelial cells The majority of patients typically have advanced-stage tumours at diagnosis. When complete surgery with no macroscopic visible disease is not feasible due to both the spread of the disease and the patient's general condition, neoadjuvant chemotherapy (NACT) of 3 cycles followed by interval cytoreductive surgery (ICS) or final cytoreductive surgery (FCS) after 6 cycles of NACT followed or not by adjuvant chemotherapy can be offered, with similar overall survival. In our centre, due to logistics, disease, or patient factors, many patients may receive more than 3 cycles of NACT before ICS. Therefore, this randomized controlled trial aims to evaluate the survival benefit of different timings of ICS after 3 or 6 cycles of NACT in patients not eligible for upfront cytoreductive surgery (UCS).

Interventions

PROCEDUREDelayed interval cytoreductive surgery (DICS)

patients will receive six courses of intravenous carboplatin and paclitaxel every 3 weeks, followed by delayed interval cytoreductive surgery (DICS) within 6 weeks of the last cycle of chemotherapy. After DICS, patients will be assessed for the need or not for further adjuvant chemotherapy. chemotherapy regimen: * Paclitaxel at 175 mg/m² + carboplatin area under the curve (AUC) 5-6 every 3 weeks. * Paclitaxel at 60 mg/m² (days 1, 8, and 15), and carboplatin AUC 2 (days 1, 8, and 15) every 3 weeks. * Paclitaxel at dense dose 80 mg/m² (days 1, 8, and 15) and carboplatin AUC 5-6 (day 1) every 3 weeks.

PROCEDUREEarly interval cytoreductive surgery (EICS)

patients will receive three courses of intravenous carboplatin and paclitaxel every 3 weeks, followed by early interval cytoreductive surgery (EICS) within 6 weeks of the last cycle of chemotherapy. After EICS, patients will receive adjuvant three courses of intravenous carboplatin and paclitaxel every 3 weeks, then will be assessed for the need or not for further adjuvant chemotherapy. chemotherapy regimen: * Paclitaxel at 175 mg/m² + carboplatin area under the curve (AUC) 5-6 every 3 weeks. * Paclitaxel at 60 mg/m² (days 1, 8, and 15), and carboplatin AUC 2 (days 1, 8, and 15) every 3 weeks. * Paclitaxel at dense dose 80 mg/m² (days 1, 8, and 15) and carboplatin AUC 5-6 (day 1) every 3 weeks.

Sponsors

Alexandria University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Female Patients aged 18 to 75 years. 2. International Federation of Gynecology and Obstetrics (FIGO) stage IIIB-IV unsuitable for UCS. 3. Histologically confirmed high-grade serous (HGS) ovarian, fallopian tube, or primary peritoneal carcinoma. 4. ECOG performance status: 0 or 1. 5. Resectable disease by laparoscopic assessment after 3 cycles of NACT. 6. Adequate haematology, bone marrow, respiratory, hepatic, cardiac and renal functions. 7. Estimated life expectancy of \> 3 months according to Age-adjusted Charlston Co-morbidity Index (ACCI), included patients should have a low or intermediate comorbidity score; ACCI 0-3.

Exclusion criteria

1. Metastatic ovarian carcinoma. 2. Patients with primary ovarian carcinoma other than high-grade serous (low-grade serous, endometrioid, mucinous, clear cell, and non-epithelial ovarian carcinoma). 3. Presence of pregnancy or breast-feeding. 4. History of other invasive malignancies in the previous 5 years. 5. History of a recent \< 6 month cerebrovascular accident. 6. Uncontrolled systemic disease or contraindication to chemotherapy. 7. Progressive disease on NACT. 8. Worsening Eastern Cooperative Oncology Group (ECOG) Performance Status (ECOG 2-4). 9. Severe comorbidities (ACCI \>= 4)

Design outcomes

Primary

MeasureTime frameDescription
Progression-free survival (PFS)up to 5yearsPFS will be defined as the time to recurrence/progression, or the date of death. Disease recurrence/ progression is defined as an increase in cancer antigen 125 (CA 125) levels or evidence of recurrence by imaging and/or histology.
Overall survival (OS)up to 5 yearsOS will be defined as the time until the patient's death from any cause. The time to event occurrence will be calculated from the time of randomization until the event of interest.

Secondary

MeasureTime frameDescription
Surgical complexity scoring (low, intermediate, or high)3-6 monthsassessment of complexity score of during surgery
Post-operative morbiditywithin 30 days of surgeryPost-operative morbidity according to the Clavien-Dindo classification (CDC), i.e., proportion of severe complications (CDC grade 3-5) within 30 days of surgery.
Operative peritoneal cancer index (PCI) assessment3-6 monthspre- and post-operative PCI
The total number of chemotherapy cycles administered8 monthsThe total number of chemotherapy cycles administered (NACT + adjuvant cycles).
Tumour recurrence and deathUp to 5 yearsProportion of patients who had recurrence or died in each group.
Pathological complete chemotherapy response score (CRS 3)3-6 monthsPathological complete chemotherapy response score (CRS 3) in the pathology specimen
Complete resection rate3-6 monthsproportion of patients without macroscopically visible disease according to residual (R), patients will have R0 if no macroscopic residual, R1 if the residual is ≤10 mm, and R2 if the residual is \> 10 mm.

Countries

Egypt

Contacts

Primary ContactHayat Sharaf, MsC
h_mohammed14@alexmed.edu.eg00201025774942
Backup ContactAlaa Elzarkaa, PhD
A_elzarka09@alexmed.edu.eg00201008296264

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026