This phase I/II trial tests the safety, side effects, best dose and effectiveness of paclitaxel given directly into the abdominal cavity (intraperitoneal) in treating patients with metastatic appendix cancer. Cancer of the appendix, such as appendiceal adenocarcinoma, is rare and is often diagnosed after the tumor has spread to the abdominal cavity (peritoneal). Systemic treatment has been shown to have a limited effect that may be due to the peritoneum-plasma barrier which prevents effective drug delivery into the peritoneal cavity. Paclitaxel is in a class of medications called antimicrotubule agents. It stops tumor cells from growing and dividing and may kill them. Paclitaxel when given in the peritoneal cavity may provide a higher drug exposure in the peritoneal cavity and reduce side effects due to systemic therapy. Giving paclitaxel intraperitoneally may be safe, tolerable and/or effective in treating patients with metastatic appendiceal adenocarcinoma.
Additional locations may be listed on ClinicalTrials.gov for NCT06207305.
Locations matching your search criteria
United States
Texas
Houston
M D Anderson Cancer CenterStatus: Active
Contact: Beth Helmink
Phone: 713-792-6940
PRIMARY OBJECTIVES:
I. To assess the maximum tolerated dose (MTD) of paclitaxel via intraperitoneal (IP) route given every 14 days in subjects with metastatic appendiceal adenocarcinoma. (Phase I)
II. To assess the pathologic, biochemical, and radiographic objective response rate of paclitaxel via IP route in patients with metastatic appendiceal adenocarcinoma. (Phase II)
SECONDARY OBJECTIVES:
I. To assess the progression-free and overall survival of metastatic appendiceal adenocarcinoma treated with IP paclitaxel.
II. To assess the pharmacokinetics of IP paclitaxel (PTX).
III. To assess the change in Peritoneal Cancer Index (PCI) following IP PTX in patients with metastatic appendiceal adenocarcinoma.
IV. To assess rate of initially unresectable patients with metastatic appendiceal adenocarcinoma able to undergo cytoreductive surgery (CRS) / heated intraperitoneal chemotherapy (HIPEC) after IP PTX.
V. To assess the rate of conversion from positive to negative cytology in peritoneal fluid following IP PTX in patients with metastatic appendiceal adenocarcinoma.
VI. To assess the prognostic value of circulating tumor deoxyribonucleic acid (DNA) (ctDNA) in patients with metastatic appendiceal adenocarcinoma and the correlation of quantitative ctDNA measurement with radiographic and pathologic response.
VII. To generate patient-derived xenograft (PDX) and patient-derived organoids (PDO) models of appendiceal adenocarcinoma and evaluate their ability to predict response of human tumors.
VIII. To evaluate the effect of IP PTX on the transcriptomic state of appendiceal adenocarcinoma and the tumor microenvironment (TME) through comparison of pre- and post-treatment specimens.
IX. To assess the impact of GNAS, KRAS, TP53, and APC mutation on response to IP PTX therapy.
X. To assess the impact of mucinous, signet ring cell, and goblet cell histology on response to IP PTX therapy.
OUTLINE: This is a dose-escalation study of intraperitoneal paclitaxel followed by a dose-expansion study.
Patients receive paclitaxel IP over at least 30 minutes every 2 weeks for up to 4 doses over 8 weeks. Additionally, patients undergo blood sample collection, computed tomography (CT) scan, or positron emission tomography (PET)/CT scan at baseline and throughout the trial.
At the completion of study treatment, patients are followed up every 12 weeks for up to 1 year.
Lead OrganizationM D Anderson Cancer Center
Principal InvestigatorBeth Helmink