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Clinical trials

Pressurized Intraperitoneal Aerosolized Chemotherapy With Mitomycin for the Treatment of Unresectable Appendix or Colorectal Cancer With Peritoneal Metastases, The IMPACT Trial

Recruiting nowPhase 3Randomised

What this trial is trying to do

The researchers expect that delivering mitomycin as a pressurised mist directly into the abdominal cavity during laparoscopy may spread the drug more evenly into peritoneal tumours, while damaging their DNA. The trial is testing this PIPAC approach alongside chemotherapy against standard intravenous FOLFIRI (fluorouracil, irinotecan and leucovorin) plus bevacizumab, with or without bevacizumab in the PIPAC group.

Direct delivery could expose peritoneal metastases to mitomycin without relying only on drug reaching them through the bloodstream, and the procedure can be repeated without open surgery. The main question is whether this improves overall survival compared with standard treatment.

Worth knowing: PIPAC still involves repeated minimally invasive operations, and the trial has not yet shown that it improves survival or other outcomes.

Written from the trial's own registry entry to explain what the researchers are testing and why. Nothing here is a result — this trial has not reported one — and it is not a view on whether the treatment works or on whether it would suit you.

The trial at a glance
Registry number NCT07271355
Recruitment Recruiting now
Phase Phase 3
Design randomised, open label
Taking part 129 people (planned)
Who can join aged 18 Years and over
Run by City of Hope Medical Center
Started
Main results expected
Record last updated

What is being tested

  • Biological Bevacizumab
  • Procedure Biopsy Procedure
  • Procedure Biospecimen Collection
  • Procedure Computed Tomography
  • Drug Fluorouracil
  • Drug Irinotecan Hydrochloride
  • Drug Leucovorin Calcium
  • Procedure Magnetic Resonance Imaging
  • Drug Mitomycin
  • Other Questionnaire Administration

What it is measuring

Overall survival (OS)

This is the trial's main question — the one it is designed and sized to answer. Anything else it reports is a secondary finding, and secondary findings are far more likely to be chance.

Phase 3. Compares the treatment against current standard care in a large group. This is the design that changes practice.

How the researchers describe it

This phase III trial studies how well pressurized intraperitoneal aerosolized chemotherapy (PIPAC) with mitomycin works versus (vs) standard chemotherapy (leucovorin calcium, fluorouracil, and irinotecan hydrochloride [FOLFIRI regimen] plus bevacizumab) in treating patients with appendix or colorectal cancer that cannot be removed by surgery (unresectable) and has spread from where it first started (primary site) to the abdominal cavity (peritoneal metastases). PIPAC is a new therapeutic approach that is minimally invasive, does not require surgery (laparotomy), and can be frequently repeated. Chemotherapy is delivered as a pressurized mist directly inside the abdominal cavity (peritoneum) during a minimally invasive surgery called a laparoscopy. The pressure helps the chemotherapy absorb into the cancer tissue and spread more evenly. Mitomycin is an antibiotic used as a chemotherapy drug. It stops or slows the growth of cancer cells and other rapidly growing cells by damaging their deoxyribonucleic acid (DNA). Standard chemotherapy drugs, such as those in the FOLFIRI regimen, are given via infusion into a vein (intravenously), and work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading.

Written by the trial’s sponsor, quoted from its ClinicalTrials.gov record.

What this trial is looking for

Genotype

  • dMMR / MSI-H
Disease

  • Metastatic
Treatment

  • Not yet treated

Read automatically from the criteria below, to make the list searchable. It is a summary of what the text mentions, not a decision about whether you qualify — and where the two disagree, the criteria are right and this is wrong.

Who the trial is looking for

Inclusion Criteria

  • Documented informed consent of the participant and/or legally authorized representative
  • Assent, when appropriate, will be obtained per institutional guidelines
  • Agreement to allow the use of archival tissue from diagnostic tumor biopsies
  • If unavailable, exceptions may be granted with study principal investigator (PI) approval
  • Age: ≥ 18 years
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
  • Histologically or cytologically confirmed appendiceal or colorectal cancer peritoneal metastases
  • No extraperitoneal metastases except lung ≤ 5 lesions with largest ≤ 1cm as identified on CT imaging or MRI. CT scan or MRI to assess measurable disease must have been completed within 28 days prior to registration
  • Visible peritoneal metastatic disease on cross-sectional imaging or diagnostic laparoscopy (does not have to be measurable by RECIST (v1.1)
  • Completed at least 4 months (8 cycles) of first-line standard-of-care oxaliplatin-based systemic therapy without progression of disease. Or completed less than 4 months of oxaliplatin based therapy due to intolerance and without progressive disease. Or progressed on first-line standard-of-care oxaliplatin-based systemic therapy.

This is an extract. Whether you qualify is decided by the trial team against the full criteria, not by reading this page. Read the full eligibility criteria

Where it is running

Running at 5 sites. Listed in: United States.

Individual hospitals, and whether each is currently open, are listed on the registry record. Sites open and close throughout a trial.

Worth asking your oncology team

Being listed here is not a recommendation, and no one page can tell you whether a trial is right for you. These are the questions it raises.

  • Is this trial open at a hospital I could realistically travel to?
  • Given my stage, my previous treatment and my tumour's molecular profile, would I be eligible?
  • What would I be giving up by joining — is the comparison arm the treatment I would otherwise be having?
  • What is already known about the safety of what is being tested?

The source

Registry record NCT07271355, registered by City of Hope Medical Center on ClinicalTrials.gov, a public database run by the US National Library of Medicine. The details on this page come from that record and are only ever as current as the sponsor has kept it.

This is a listing of a registered clinical trial, reproduced for information. It is not a recommendation, this site has no connection to the trial or its sponsor, and being listed here says nothing about whether the treatment works. Talk to your own oncology team before pursuing any trial.

This article summarises published research for general information. It is not medical advice, and it is not a substitute for a conversation with your own oncology team, who know your case. Do not start, stop, or change any treatment or supplement on the basis of what you read here.


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