Hyperthermic Intraperitoneal Chemotherapy With Cisplatin and Paclitaxel for the Treatment of Patients With Gastric and Gastroesophageal Junction Adenocarcinoma at High Risk of Peritoneal Recurrence

Not Applicable

Not yet recruiting

• Conditions: Clinical Stage I Gastric Cancer AJCC v8; Clinical Stage I Gastroesophageal Junction Adenocarcinoma AJCC v8; Clinical Stage II Gastric Cancer AJCC v8; Clinical Stage II Gastroesophageal Junction Adenocarcinoma AJCC v8; Clinical Stage III Gastric Cancer AJCC v8; Clinical Stage III Gastroesophageal Junction Adenocarcinoma AJCC v8; Gastric Adenocarcinoma; Gastroesophageal Junction Adenocarcinoma
• Interventions: Procedure: Biopsy Procedure; Procedure: Biospecimen Collection; Drug: Cisplatin; Procedure: Computed Tomography; Drug: Hyperthermic Intraperitoneal Chemotherapy; Procedure: Laparoscopy; Procedure: Lymphadenectomy; Procedure: Magnetic Resonance Imaging; Drug: Paclitaxel; Procedure: Positron Emission Tomography; Procedure: Surgical Procedure

• Registration Number: NCT07139951
• Lead Sponsor: Mayo Clinic

Brief Summary

This phase II trial tests how well concentrating heated (hyperthermic) chemotherapy in the area that contains the abdominal organs (intraperitoneal \[IP\]) at the time of surgery works in treating patients with gastric or gastroesophageal junction adenocarcinoma at high risk of the cancer coming back to the abdominal cavity (peritoneal) after a period of improvement (recurrence). Recurrence in the peritoneum often occurs within the first 18 months after surgery. This is thought to be due to tumor cells that may scatter and spread during surgery. Cisplatin is in a class of medications known as platinum-containing compounds. It works by killing, stopping or slowing the growth of tumor cells. Paclitaxel is in a class of medications called antimicrotubule agents. It stops tumor cells from growing and dividing and may kill them. Paclitaxel alone and in combination with other chemotherapy agents have been shown to be effective treatments for gastric tumors. However, systemic delivery of these drugs has not been shown to be effective in treating peritoneal metastasis. Hyperthermic intraperitoneal chemotherapy (HIPEC) is a procedure that involves the infusion of a heated chemotherapy solution, such as cisplatin and paclitaxel, that circulates into the abdominal cavity. Giving HIPEC with cisplatin and paclitaxel at the time of surgery may reduce peritoneal recurrence in patients with gastric or gastroesophageal junction adenocarcinoma at high risk.

Detailed Description

Not available

Study Timeline

• Status Verified: 2025-08
• Study First Submitted: 2025-08-18
• Study First Submitted QC: 2025-08-18
• Last Update Submitted: 2025-08-18
• Study First Posted: 2025-08-24
• Last Update Posted: 2025-08-24
• Study Start: 2025-09-11
• Primary Completion: 2027-02-11
• Study Completion: 2031-08-11

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 16

Inclusion Criteria

• Age ≥ 18 and ≤ 80 years
• Histological confirmation of adenocarcinoma of the stomach or gastroesophageal junction (GEJ) (Siewert type II or III)
• Tumor index (TI) ≥ 90 (T stage multiplied by the largest tumor diameter in mm on endoscopic ultrasound [EUS]). Patients with linitus plastica automatically have TI ≥ 90
• Hemoglobin ≥ 8.0 g/dL
• Absolute neutrophil count (ANC) ≥ 1000/mm^3
• Platelet count ≥ 75,000/mm^3
• Calculated creatinine clearance ≥ 60 ml/min using the Cockcroft-Gault formula
• No radiographic or histological evidence of distant metastasis
• Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1 or 2
• Willingness to provide mandatory blood specimens for correlative research
• Willingness to provide mandatory tissue specimens for correlative research
• Willing to return to enrolling institution for follow-up (during the active monitoring phase of the study)

Exclusion Criteria

• Any of the following because this study involves an agent that has known genotoxic, mutagenic, and teratogenic effects:

  • Pregnant persons
  • Nursing persons
  • Persons of childbearing potential and persons able to father a child who are unwilling to employ adequate contraception

• Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens

• Uncontrolled intercurrent illness including, but not limited to:

  • Ongoing or active infection
  • Symptomatic congestive heart failure
  • Unstable angina pectoris
  • Renal insufficiency (estimated glomerular filtration rate [eGFR] < 60)
  • Or psychiatric illness/social situations that would limit compliance with study requirements

• Receiving any other investigational agent which would be considered as a treatment for the primary neoplasm

• Active second malignancy currently receiving systemic treatment ≤ 6 months prior to pre-registration

• History of myocardial infarction ≤ 6 months prior to pre-registration, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Treatment (p-HIPEC, cisplatin, paclitaxel)	Biopsy Procedure	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Biospecimen Collection	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Cisplatin	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Computed Tomography	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Hyperthermic Intraperitoneal Chemotherapy	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Laparoscopy	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Lymphadenectomy	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Magnetic Resonance Imaging	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Paclitaxel	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Positron Emission Tomography	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.
Treatment (p-HIPEC, cisplatin, paclitaxel)	Surgical Procedure	Patients undergo gastrectomy with reconstruction per surgeon discretion and D2 lymphadenectomy and receive p-HIPEC with cisplatin and paclitaxel intraperitoneal (IP) over 90 minutes on study. Patients also undergo blood sample collection and PET/CT or PET/MRI throughout the study, as well as laparoscopy with biopsy during screening.

Primary Outcome Measures

Name	Time	Method
Peritoneal Recurrence-free Survival	Up to 18 months	Patients will be followed in active surveillance with biomarkers (CEA and CA 19-9) and cross-sectional imaging of the chest, abdomen and pelvis. Only non-lymphatic, non-peranastomotic, and non-visceral intra-abdominal metastasis will be considered peritoneal metastasis. Ovarian metastasis will be considered peritoneal metastasis for this trial.

Secondary Outcome Measures

Name	Time	Method
Safety and Tolerability (Adverse Events)	Up to 45 days after study treatment	Safety and tolerability will be determined by incidence of adverse events (AEs), specifically the incidence of grade 3 neutropenia and thrombocytopenia. AEs will be assessed using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. The incidence of acute kidney injury will be defined by the glomerular filtration rate (GFR) criteria of the Risk, Injury, Failure, Loss of kidney function and End-stage kidney disease (RIFLE) classification.
Recurrence-free Survival	Up to 5 years	Recurrence-free survival (RFS) is defined as the time from study entry to the first of either disease progression or death due to any cause. Any radiographic, endoscopic or biopsy proven recurrence of cancer will count as disease recurrence.
Overall Survival	3 years and 5 years	Overall survival (OS) is defined as the time from date of study entry to date of death or last follow up.

Trial Locations

Locations (1)

Mayo Clinic in Rochester; 🇺🇸 Rochester, Minnesota, United States