This is an open-label, multicenter, single-arm, feasibility phase 2 trial on safety and efficacy of short-course regimen of intra-operative Hyperthermic Intraperitoneal Chemotherapy (HIPEC) at the time of fast-track interval debulking surgery (IDS) following neoadjuvant chemotherapy (NACT) for high tumor burden epithelial ovarian cancer (EOC).
This study was initially designed to explore the safety and efficacy of short-course HIPEC in terms of median progression-free survival (PFS) as the primary outcome. However, due to slow accrual, the design was subsequently amended to explore the primary outcome measure of PD9 (i.e.: proportion of patients with disease progression or death occurring within 9 months of IDS plus HIPEC). The hypothesis was the short-course HIPEC could decrease PD9 with low rates of morbidity and mortality. In these settings, we explore a comprehensive treatment approach involving fast-track advanced cytoreductive surgery (CRS) plus short-course HIPEC at the time of IDS following NACT for high tumor burden patients with stage III-IV ovarian cancer. Advanced CRS was performed with standard peritonectomy procedures and visceral resections directed towards complete elimination of tumors from the abdominopelvic cavity, and fast-track recovery strategies were also applied to improve patient outcomes. HIPEC was performed according to the closed-abdomen technique using CDDP (25 mg/L of perfusate/m2, total limit of 240mg) or CDDP plus Doxorubicin (15mg/L) for 30 minutes, with an intra-abdominal target temperature of 41-43°C. Perfusate (2L/m2, ranging from 4L to 6L) was circulated using an extracorporeal circulation device (Performer HT; RAND, Medolla, Italy) at a flow rate of 700 ml/min. Systemic chemotherapy included the standard combination of carboplatin and paclitaxel as neo-adjuvant plus adjuvant regimens.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
15
CRS was performed with standard peritonectomy procedures and visceral resections directed towards complete elimination of tumors from the abdominopelvic cavity.
HIPEC was performed according to the closed-abdomen technique using CDDP (25 mg/L of perfusate/m2, total limit of 240mg) for the first 10 patients and thus, using CDDP plus Doxorubicin (15mg/L) thereafter, both for 30 minutes, with an intra-abdominal target temperature of 41-43°C. Perfusate (2L/m2, ranging from 4L to 6L) was circulated using an extracorporeal circulation device (Performer HT; RAND, Medolla, Italy) at a flow rate of 700 ml/min.
PD9
Proportion of patients with disease progression or death occurring within 9 months of IDS plus HIPEC
Time frame: 9 months
Postoperative 30-day mortality rate
Mortality rates up to 30-day after surgery
Time frame: 30 days
Postoperative complication rates
Complications rates up to 30-day after surgery
Time frame: 30 days
Assessment of quality of life (QLQ-C30/EORTC)
Assessment of quality of life according to the QLQ-C30/EORTC scales.
Time frame: Baseline (i.e., at the time of hospital admission for IDS plus HIPEC); after CRS/HIPEC (i.e., at the time of restarting the systemic chemotherapy); after protocol (i.e., at 3-6 weeks after the last syst
Overall survival (OS)
We defined OS as the time from starting the NACT to death.
Time frame: 24 months
Progression-free Survival (PFS)
We defined PFS as the time from starting the NACT to disease progression.
Time frame: 24 months
Disease-free Survival (DFS)
We defined DFS for patients without no gross residual disease as the time from IDS plus HIPEC to disease progression.
Time frame: 24 months
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Systemic chemotherapy included the standard combination of carboplatin (AUC 6) and paclitaxel (175 mg/m2) administered every 21 days as neoadjuvant (2-4 cycles) plus adjuvant regimens (2-4 cycles), in the total of 6 cycles of systemic chemotherapy.
Systemic chemotherapy included the standard combination of carboplatin (AUC 6) and paclitaxel (175 mg/m2) administered every 21 days as neoadjuvant (2-4 cycles) plus adjuvant regimens (2-4 cycles), in the total of 6 cycles of systemic chemotherapy.
A comprehensive fast-track program was applied to accelerate recovery, reduce morbidity, and shorten convalescence for patients enrolled in our trial.