Response Prediction of Hyperthermic Intraperitoneal Chemotherapy in Gastro- Intestinal Cancer

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorTechnische Universität Dresden

About this trial

Patients with gastric or colon cancer with peritoneal carcinomatosis will receive a biopsy of the tumor during their primary curative surgery. The operation is performed according to standard and includes resection of the primary tumor and any metastases and followed by HIPEC (Intraperitoneal hyperthermic chemoperfusion) according to the respective hospital standard. Organoid cultures from the biopsies are established in the research laboratory.

Various chemotherapeutic agents are tested on these tumor organoids in the laboratory and the tumor organoids are analyzed in detail with regard to genetic alterations in order to find alterations that can be addressed, if necessary, by means of targeted drugs against peritoneal carcinomatosis.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

(Suspected) synchronous or metachronous peritoneal metastasis of adenocarcinoma of the stomach / gastroesophageal junction (GEJ) or of the colon or rectum

intraoperative histological confirmation of synchronous or metachronous peritoneal carcinomatosis in gastric carcinoma (incl. GEJ) or colon carcinoma (incl. rectal carcinoma)

Intraoperative peritoneal cancer index (PCI) ≤ 15 for gastric carcinoma and ≤ 20 for colon carcinoma.

Possibility of surgical resection of peritoneal carcinomatosis (cytoreductive surgery) in curative intention with achievement of a Completeness of Cytoreduction Score (CCS) of 0-1

Disqualifiers

Presence of non-resectable distant metastases

Patients with extensive metastasis (e.g., multiple bilobular liver metastases, hepatic and pulmonary metastases, multiple retroperitoneal lymph node metastases; oligometastasis is allowed)

Patients with recurrence of peritoneal carcinomatosis (e.g., previous peritonectomy in the course of primary tumor resection)

Patients after previous palliative chemotherapy or radiation of the tumor (exception: neoadjuvant and/or adjuvant therapies)

Trial population

Eligible patients are recruited consecutively during of the initial surgical treatment planning

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • Establishment of organoid cultures and in vitro sensitivity testing

    Other intervention

    Generating patient-derived tumor organoid models as well as orthotopic mouse models from peritoneal carcinomatosis lesions and to investigate their response to different therapies.

Treatment groups

No treatment groups listed

Trial outcomes

Primary outcomes

1

Evaluation of the sensitivity of the in vitro response of the organoid model to chemotherapeutic agents

Organoid treatment by means of ascending doses of chemotherapy and under HIPEC conditions, i.e. with elevated temperature

Time frame
1 year
2

Next generation sequencing of organoid cultures

Sequencing of DNA and RNA (Ribonucleic acid)

Time frame
1 year

Secondary outcomes

Other outcomes

Sponsors and contacts

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Technische Universität Dresden

Lead sponsor

German Cancer Research Center

Collaborator