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Systemic Antitumor Treatment with or Without Pressurized Intraperitoneal Aerosol Chemotherapy for Colon Peritoneal Metastases (PIPOX02)

Systemic Antitumor Treatment with or Without Pressurized Intraperitoneal Aerosol Chemotherapy (PIPAC) for Colon Peritoneal Metastases - a Multicentre Phase II Randomized Trial (PIPOX02)

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06681038
Acronym
PIPOX02
Enrollment
114
Registered
2024-11-08
Start date
2025-02-28
Completion date
2029-08-31
Last updated
2024-11-08

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

Conditions

Peritoneal Metastases from Colorectal Cancer

Keywords

Surgical oncology, Peritoneal metastasis, Pressurized IntraPeritoneal Aerosol Chemotherapy, Systemic chemotherapy

Brief summary

The goal of this clinical trial is to learn if Pressurized intraperitoneal aerosol chemotherapy (PIPAC) significantly improve the progression-free survival (PFS) in patients with advanced peritoneal metastasis from colorectal cancer. Researchers will compare 2 strategies, systemic treatments (chemotherapy + targeted therapy) corresponding to standard treatment with or without intraperitoneal oxaliplatin (PIPAC) to see if PIPAC improve the progression-free survival. Participants will: * receive a standard treatment every 2 weeks for 12 cycles of intravenous FOLFIRI or FOLFIRINOX + targeted systemic therapy (anti-EGFR or anti-VEGF) in the both arms. * receive up to a maximum of 4 PIPAC every 6 weeks with pressurized aerosol containing oxaliplatin in experimental arm. * receive a maintenance treatment until progression or until the onset of severe toxicity after 12 cycles. * be asked to perform a CT scan and carcinoembryonic antigen (CEA) assay every 8 weeks until progression

Interventions

DRUGStandard Medical Therapy

Intravenous doublet chemotherapy FOLFIRI or FOLFIRINOX + targeted systemic therapy (anti-EGFR or anti-VEGF). Administered every 2 weeks for 12 cycles. Dosage and administration at recommended doses.

PROCEDUREPIPAC

In addition to standard systemic treatment, patients receive also four PIPAC procedures with pressurized aerosol containing oxaliplatin. The PIPAC procedure is repeated up to a maximum of 4 times every 6 weeks.

Sponsors

Institut Cancerologie de l'Ouest
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* ECOG performance status of 0 to 2; * Histopathologically confirmed colonic adenocarcinoma with synchronous or metachronous peritoneal metastasis (PM); * Unresectable PM defined as any of the following: * PCI \>15 * Extended small bowell involvement * Poor general condition contra-indication to a major abdominal surgery (eg: a complete cytoreductive surgery), as decided by the medico-surgical team of the investigator's site specialised in peritoneal carcinomatosis in charge of the patient. * A surgical exploration performed less than 4 weeks before inclusion (if not, a laparoscopic exploration must be performed); * First line systemic chemotherapy for advanced / metastatic colonic adenocarcinoma. Systemic chemotherapy in an adjuvant setting is allowed if completed more than 6 months before recurrence and without persistent oxaliplatin-induced neuropathy; * No extended intraperitoneal adherences defined by at least 9 out of 13 abdominal regions correctly explored during surgical exploration (laparoscopy or laparotomy;

Exclusion criteria

* Other cancer treated within the last 3 years, with the exception of in situ cervical carcinoma or basocellular carcinoma; * Rectal cancer primary (tumor \<15 cm from the anal verge); * Mutational status corresponding to microsatellite instability high (MSI-H) or mismatch repair deficient (dMMR); * Complete or partial bowel obstruction unresponsive to medical treatment; * Extraperitoneal polymetastatic diseases. (Only oligometastatic1 diseases are allowed for inclusion); * History of abdominal fistula, gastrointestinal perforation, intra-abdominal abscess within 6 months prior to enrolment; * Active gastrointestinal bleeding; * Inflammatory bowel disease; * Peripheral neuropathy according to the Common Toxicity Criteria for Adverse Events (CTCAE) version 5.0, grade ≥2

Design outcomes

Primary

MeasureTime frameDescription
Progression free survival (PFS) between the two groupsFrom randomisation to 18 months after last patient randomisationProgression free survival (PFS) is defined as the time (in months) from randomisation until the date of progression or death from any cause.

Secondary

MeasureTime frameDescription
EORTC QLQ-C30 questionnaireAt enrollment, week 16 and week 32 after the start of treatmentQuality of life between the two groups evaluated by the score of EORTC QLQ-C30 questionnaire
EORTC QLQ-CR29 questionnaireAt enrollment, week 16 and week 32 after the start of treatmentQuality of life between the two groups evaluated by the scores of EORTC QLQ-CR29 questionnaire
Overall survival (OS) between the two groupsFrom randomisation to 18 months after last patient randomisationOverall survival (OS) defined as the time between randomisation and death from any cause
Obstruction-free survival (OFS) between the two groupsFrom randomisation to 18 months after last patient randomisationObstruction-free survival is defined as the time between the date of randomisation and the appearance of gastrointestinal obstruction requiring medication with high dose of corticosteroïd (\> 1mg/kg) or intervention as nasogastric decompression, intraluminal stenting, surgical bypass, or decompression stomy (gastrostomy or ileo/colostomy) or death.
Histological tumor responseAt the end of the 12th course of treatment (week 24)Peritoneal regression grading score (PRGS) on biopsies performed at surgical exploration in both groups, and systematically during 1st and 2nd PIPAC procedure.
Peritoneal progression free survival (PPFS) between the two groupsFrom randomisation to 18 months after last patient randomisationPeritoneal progression free survival defined as the time between the date of randomisation and the date of peritoneal progression or death from any cause.

Countries

France

Contacts

Primary ContactFrédéric DUMONT, MD
frederic.dumont@ico.unicancer.fr+33240679900
Backup ContactEmilie DEBEAUPUIS
emilie.debeaupuis@ico.unicancer.fr+33240679844

Outcome results

None listed

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