INTERACT Stomach-II

NCT ID: NCT07133490

Last Updated: 2025-08-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

49 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-01

Study Completion Date

2028-07-01

Brief Summary

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This is a phase II study conducted in three hospitals in the Netherlands (Erasmus MC in Rotterdam, Catharina Hospital in Eindhoven, and the Netherlands Cancer Institute in Amsterdam). A total of 49 patients will take part. The aim is to test whether a new combination treatment is feasible for patients with gastric peritoneal metastases (PM). The treatment includes chemotherapy (intraperitoneal irinotecan and standard systemic therapy such as CAPOX or FOLFOX), and may also include nivolumab or trastuzumab, depending on biomarker results.

Detailed Description

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Conditions

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Peritoneal Metastases From Gastric Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Intraperitoneal chemotherapy arm

Patients in this group will receive intraperitoneal irinotecan in addition to standard systemic therapy

Group Type EXPERIMENTAL

intraperitoneal chemotherapy

Intervention Type DRUG

Through a peritoneal access port, irinotecan will be administered at the same time as systemic (chemo)therapy

Interventions

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intraperitoneal chemotherapy

Through a peritoneal access port, irinotecan will be administered at the same time as systemic (chemo)therapy

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Histologically confirmed gastric cancer or gastroesophageal junction adenocarcinoma
* Pathologically and clinically confirmed diagnosis of macroscopic peritoneal metastases (defined as PCI score ≥ 1)
* WHO-performance score of 0 to 1 with a life expectancy greater than or equal to three months
* Aged 18 years or older
* Written informed consent according to the ICH-GCP and national/local regulations

Exclusion Criteria

* Distant metastases other than peritoneal metastases or metastatic lymph nodes
* Prior palliative systemic therapy for gastric cancer
* Prior (neo)-adjuvant systemic therapy for gastric cancer within the six months before enrolment in this study
* Severe symptomatic ascites requiring monthly recurrent therapeutic paracentesis
* Homozygous dihydropyrimidine dehydrogenase (DPD) deficiency
* Any contra-indication for the (planned) systemic chemotherapy (e.g. active infection, serious concomitant disease, severe allergy, persistent neurologic toxicity after (neo-)adjuvant oxaliplatin based systemic therapy), as determined by the treating medical oncologist
* Inadequate organ functions (defined as a hemoglobin \<5.0 mmol/l, an absolute neutrophil count \<1.5 x 109/l, platelet count \<100 x 109/l, creatinine clearance \<30 ml/min, bilirubin \>2x ULN and liver transaminases \>2.5x ULN)
* Pregnant or lactating women
* Concomitant participation in any clinical study that could modify the outcomes relevant to this study
* Absence of assurance of compliance with the protocol
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Catharina Ziekenhuis Eindhoven

OTHER

Sponsor Role collaborator

Netherlands Cancer Institute - NKI

UNKNOWN

Sponsor Role collaborator

Erasmus Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Pieter Christiaan van der Sluis

Dr.

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Pieter C van der Sluis, MD PhD

Role: PRINCIPAL_INVESTIGATOR

Erasmus MC, University Medical Center Rotterdam

Central Contacts

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Micha J de Neijs, Bsc

Role: CONTACT

010 70 39640

Other Identifiers

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2025-521468-36-00

Identifier Type: CTIS

Identifier Source: secondary_id

2025-521468-36-00

Identifier Type: -

Identifier Source: org_study_id

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