Biweekly Intraperitoneal Oxaliplatin With Systemic Capecitabine and Bevacizumab for Patients With Peritoneal Carcinomatosis From Appendiceal or Colorectal Cancer

September 15, 2025 updated by: Washington University School of Medicine

A Phase I Dose-Escalation Trial of Biweekly Intraperitoneal Oxaliplatin With Systemic Capecitabine and Bevacizumab Following Cytoreduction in Patients With Peritoneal Carcinomatosis From Appendiceal or Colorectal Cancer

This study is to test escalating doses of intraperitoneal (IP) oxaliplatin in conjunction with systemic bevacizumab and capecitabine in patients with Peritoneal Carcinomatosis (PC) from either appendiceal or colorectal adenocarcinoma that have been adequately cytoreduced and have undergone a peritoneal scan demonstrating patency of at least one of the intraperitoneal ports that were placed at the time of debulking.

Study Overview

Status

Active, not recruiting

Conditions

Detailed Description

  • To determine the maximum tolerated dose of IP oxaliplatin with systemic intravenous bevacizumab and oral capecitabine after adequate surgical debulking and peritoneal scan documenting function of intraperitoneal ports in patients with peritoneal carcinomatosis of appendiceal or colorectal etiology.
  • To assess the safety and tolerability of repeated delayed intraperitoneal chemotherapy with oxaliplatin and systemic intravenous bevacizumab and oral capecitabine after adequate surgical debulking and peritoneal scan documenting function of intraperitoneal ports in patients with peritoneal carcinomatosis of appendiceal or colorectal etiology.
  • To describe the progression rate, progression-free survival and overall survival in patients treated with this regimen.

Study Type

Interventional

Enrollment (Actual)

21

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Missouri
      • St Louis, Missouri, United States, 63110
        • Washington University School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Histological Diagnosis: Patients must have a histologically documented peritoneal carcinomatosis from either colorectal or appendiceal adenocarcinoma.
  • Prior Surgical Debulking: Patients must have undergone debulking surgery with peritonectomy and have been allowed at least 4 weeks to recover prior to receiving chemotherapy.
  • Port Placement: Intraperitoneal ports may be placed during or at any time separate from surgical debulking. Provided the patient has been allowed at least 4 weeks to recover from surgical debulking, no additional recovery time is required for port placement.
  • Active port: Patients must undergo a peritoneal scan documenting at least one working intraperitoneal port prior to receiving chemotherapy.
  • Patients may have received prior chemotherapy.
  • Age: Patients must be ≥18 years of age. Because no dosing or toxicity data are currently available on the use of oxaliplatin in patients <18 years of age.
  • Performance Status: (Eastern cooperativeOncology Group) ECOG 0-2.
  • Recovery from Intercurrent Illness: Patients must have recovered from uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmias.
  • Informed Consent: All patients must be consented prior to chemotherapy. The patient should not have any serious medical of psychiatric illness that would prevent either the giving of informed consent or the receipt of treatment.
  • Hematological Status:

    • absolute neutrophil count ≥1,500/mm³
    • platelet count ≥100,000/mm³
    • hemoglobin ≥8 g/dl.
  • Hepatic function:

    • Total bilirubin must be <2X the institutional upper limit of normal (ULN)
    • Transaminases (SGOT and/or SGPT) must be ≤3X the institutional upper limit of normal (ULN)
    • Alkaline phosphatase must be ≤4X the institutional upper limit of normal (ULN)
  • Renal Function: Patients must have adequate renal function prior to chemotherapy defined as serum creatinine ≤ 2.0 mg/dl or creatinine clearance ≥60 ml.min/1.73 m² for patients with creatinine levels above 2.0 mg/dl.

Exclusion Criteria:

  • Pregnant or breast feeding: For all sexually active patients, the use of adequate contraception (hormonal or barrier method of birth control) will be required during therapy, prior to study entry, and for the duration of study participation. Non-pregnant status will be determined in all women of childbearing potential.
  • Prior history of hypersensitivity reactions to oxaliplatin, bevacizumab, 5-FU or capecitabine.
  • Gastrointestinal ailments that may alter the absorption of oral medications (i.e. bowel obstruction, short-gut syndrome).
  • Patients receiving antiretroviral therapy Highly Active Anti Retroviral Treatment (HAART) for HIV infection are excluded from the study because of possible pharmacokinetic interactions. Appropriate studies will be undertaken in patients receiving HAART therapy, when indicated.
  • Patients with Grade 2 or higher peripheral neuropathy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Dose Level 1

Intraperitoneal oxaliplatin 25 mg/m2 IP on day 1 of each cycle

Bevacizumab 5 mg/kg CIVI on day 1 of each cycle

Capecitabine PO BID on days 1-7 of each cycle.

Each cycle is 14 days long.

Other Names:
  • Xeloda
Other Names:
  • Avastin
Other Names:
  • Eloxatin
Experimental: Dose Level 2

Intraperitoneal oxaliplatin 50 mg/m2 IP on day 1 of each cycle

Bevacizumab 5 mg/kg CIVI on day 1 of each cycle

Capecitabine PO BID on days 1-7 of each cycle.

Each cycle is 14 days long.

Other Names:
  • Xeloda
Other Names:
  • Avastin
Other Names:
  • Eloxatin
Experimental: Dose Level 3

Intraperitoneal oxaliplatin 65 mg/m2 IP on day 1 of each cycle

Bevacizumab 5 mg/kg CIVI on day 1 of each cycle

Capecitabine PO BID on days 1-7 of each cycle.

Each cycle is 14 days long.

Other Names:
  • Xeloda
Other Names:
  • Avastin
Other Names:
  • Eloxatin
Experimental: Dose Level 4

Intraperitoneal oxaliplatin 85 mg/m2 IP on day 1 of each cycle

Bevacizumab 5 mg/kg CIVI on day 1 of each cycle

Capecitabine PO BID on days 1-7 of each cycle.

Each cycle is 14 days long.

Other Names:
  • Avastin
Experimental: Dose Level 5

Intraperitoneal oxaliplatin 100 mg/m2 IP on day 1 of each cycle

Bevacizumab 5 mg/kg CIVI on day 1 of each cycle

Capecitabine PO BID on days 1-7 of each cycle.

Each cycle is 14 days long.

Other Names:
  • Xeloda
Other Names:
  • Avastin
Other Names:
  • Eloxatin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To determine the maximum tolerated dose of IP oxaliplatin with systemic intravenous bevacizumab and oral capecitabine after surgical debulking and peritoneal scan documenting functional of intraperitoneal ports in patients with peritoneal carcinomatosis
Time Frame: Completion of enrollment (approximately 8 years)
Completion of enrollment (approximately 8 years)
Assess the safety and tolerability of IP oxaliplatin and intravenous (i.v.) bevacizumab and oral capecitabine after surgical debulking and functional intraperitoneal ports in patients with peritoneal carcinomatosis of appendiceal or colorectal etiology
Time Frame: 30 days after completion of treatment (estimated to be 22 weeks)
30 days after completion of treatment (estimated to be 22 weeks)
Progression rate
Time Frame: Through 4-12 weeks post-treatment (estimated to be 30 weeks)
-Progressive Disease (PD): At least a 20% increase in the sum of the longest diameter (LD) of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-target lesions
Through 4-12 weeks post-treatment (estimated to be 30 weeks)
Progression-free survival (PFS)
Time Frame: Through completion of follow-up (estimated to be 5 years)
-Progressive Disease (PD): At least a 20% increase in the sum of the longest diameter (LD) of target lesions, taking as reference the smallest sum LD recorded since the treatment started or the appearance of one or more new lesions or unequivocal progression of existing non-target lesions
Through completion of follow-up (estimated to be 5 years)
Overall survival
Time Frame: Through completion of follow-up (estimated to be 5 years)
Through completion of follow-up (estimated to be 5 years)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Benjamin Tan, M.D., Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 10, 2011

Primary Completion (Estimated)

September 27, 2026

Study Completion (Estimated)

September 27, 2026

Study Registration Dates

First Submitted

February 1, 2010

First Submitted That Met QC Criteria

February 2, 2010

First Posted (Estimated)

February 3, 2010

Study Record Updates

Last Update Posted (Estimated)

September 17, 2025

Last Update Submitted That Met QC Criteria

September 15, 2025

Last Verified

September 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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