Background: Cytoreductive surgery (CRS) removes tumors in the abdomen. HIPEC is heated chemotherapy that washes the abdomen. CRS and HIPEC may help people with peritoneal carcinomatosis. These are tumors that have spread to the lining of the abdomen from other cancers. Researchers think they can improve results of CRS and HIPEC by choosing the chemotherapy drugs used in HIPEC. Objective: To see if HIPEC after CRS can be improved, by testing different chemotherapy drugs, using a model called the SMART (Sample Microenvironment of Resected Metastatic Tumor) System. Eligibility: Adults ages 18 and older who have peritoneal carcinomatosis that cannot be fully removed safely with surgery. Design: Participants will be screened with: Medical history Physical exam Blood and urine tests Computed tomography (CAT) scan Other imaging scans, as needed Electrocardiogram (EKG) Tumor biopsy, if needed Laparoscopy. Small cuts will be made in the abdomen. A tube with a light and a camera will be used to see their organs. Some screening tests will be repeated in the study. Participants will enroll in NIH protocol #13C0176. This allows their tumor samples to be used in future research. Participants will have CRS. As many of their visible tumors will be removed as possible. They will also have HIPEC. Two thin tubes will be put in their abdomen. They will get chemotherapy through one tube. It will be drained out through the other tube. They will be in the hospital for 7-21 days after surgery. Participants will give tumor, blood, and fluid samples for research. They will complete surveys about their health and quality of life. Participants will have follow-up visits over 5 years.
Background: Peritoneal carcinomatosis is uniformly fatal if untreated; improved outcomes are seen with aggressive cytoreductive surgery (CRS) and heated intraperitoneal chemotherapy (HIPEC). The selection of chemotherapeutic agent for HIPEC is largely based on primary tumor histology and provider preference as opposed to knowledge of the potential efficacy of a specific agent for an individual patient. HIPEC is intended to target small or microscopic residual disease following complete cytoreduction; however, the actual efficacy and additional benefit of HIPEC is in question. The SMART System provides an ideal platform upon which to perfuse small peritoneal tumor tissue implants and simulate HIPEC treatment ex vivo. Tissue response to simulated ex vivo HIPEC treatment in the SMART System could inform chemotherapeutic agent selection for subsequent cytoreduction and intra-operative in vivo HIPEC treatments. Objective: To determine the correlation between ex vivo simulated HIPEC in the SMART System and in vivo HIPEC with respect to two measures of response to treatment: percent necrosis and Ki-67 Eligibility: Histologically confirmed peritoneal carcinomatosis from appendiceal, colorectal, ovarian, or peritoneal mesothelioma histologies Absence of extra-abdominal metastatic disease Participant deemed able to undergo complete cytoreduction Age \>= 18 years of age Design: This is a Phase I study of cytoreductive surgery (CRS) and heated intraperitoneal chemotherapy (HIPEC), with randomization to one of two accepted HIPEC treatment regimens as determined by primary histology. At the time of cytoreduction, representative peritoneal tumor biopsies will be obtained before and after intra-operative in vivo HIPEC treatment. Tumor nodules harvested before intra-operative HIPEC will be placed in the SMART System, exposed to simulated ex vivo HIPEC treatment, and then perfused, with subsequent assessment of percent necrosis and Ki-67. Tumor nodules harvested immediately after intra-operative HIPEC will be placed in the SMART System and perfused, with subsequent assessment of percent necrosis and Ki-67. The correlation of percent necrosis and Ki-67 assessment following simulated ex vivo HIPEC and intra-operative in vivo HIPEC will be determined.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
60
Arm 2, intraperitoneal (IP) Mitomycin C monotherapy: dosing divided into two 60-mL syringes, 30 mg per syringe. 30 mg will be given at time = 0, and the remaining 10 mg of the dose will be given at time = 60 minutes. Part of Arm 4: Mitomycin C co-therapy 15 mg/m2 for 60 minutes, given at time = 0 with cisplatin
Part of Arms 3 and 4, intraperitoneal (IP)cisplatin co-therapy: 75 mg/m2 for 60 minutes, mixed in 1 L of 0.9% sodium chloride. For cisplatin-based HIPEC, intravenous sodium thiosulfate given as a loading dose of 7.5 g/m2 in 150 mL 0.9% sodium chloride at the time of introducing cisplatin into the perfusion circuit, followed by a 12-hour pump-based infusion of 25.56 g/m2 in 1 L 0.9% sodium chloride
Heated Intraperitonial Chemotherapy (HIPEC) with with standardized doses of chemotherapeutic agents as indicated by the subject's Arm assignment
Part of Arm 3: intraperitoneal (IP) Doxorubicin co-therapy 15 mg/m2 for 60 minutes, given at time = 0 with cisplatin
Arm 1, intraperitoneal (IP) Oxaliplatin: 200 mg/m2 for 90 minutes, mixed in 250 mL of 5% dextrose solution. For oxaliplatin-based HIPEC, intravenous 5-fluorouracil given at a dose of 400 mg/m2 in 250 mL 0.9% sodium chloride over 10 minutes, co-administered with intravenous leucovorin at 20 mg/m2 in a separate bag of 250 mL 0.9% sodium chloride
Part of Arm 1, for oxaliplatin-based HIPEC: intravenous 5-fluorouracil given at a dose of 400 mg/m2 in 250 mL 0.9% sodium chloride over 10 minutes, co-administered with intravenous leucovorin at 20 mg/m2 in a separate bag of 250 mL 0.9% sodium chloride
Part of Arms 3 and 4, for cisplatin-based HIPEC: intravenous sodium thiosulfate given as a loading dose of 7.5 g/m2 in 150 mL 0.9% sodium chloride at the time of introducing cisplatin into the perfusion circuit, followed by a 12-hour pump-based infusion of 25.56 g/m2 in 1 L 0.9% sodium chloride
National Institutes of Health Clinical Center
Bethesda, Maryland, United States
RECRUITINGTo determine the correlation between ex vivo simulated HIPEC in the SMART system and in vivo HIPEC with respect to two measures of response to treatment: percent necrosis and Ki-67
percent necrosis and Ki-67 scores will be obtained and used to determine the correlation between each measure by ex vivo simulated HIPEC in the SMART System and by in vivo intra-operative HIPEC
Time frame: approx. 4 days post-HIPEC
To determine the correlation between ex vivo simulated HIPEC in the SMART System and in vivo HIPEC with respect to two measures of response to treatment: percent necrosis and Ki-67, separately within each cohort and arm subset, as well as within...
Tumor tissue responses to ex vivo simulated HIPEC and in vivo HIPEC regimens will be assessed by an intramural pathologist using percent tissue necrosis and Ki-67 scoring, both to the nearest 10 percent. These assessments will be incorporated into pathology reports following cytoreductive surgery with HIPEC
Time frame: approx. 4 days post-HIPEC
To estimate the peritoneal progression-free survival probability, separately by arms and by cohorts, in a preliminary fashion
median amount of time participant survives from time of cytoreduction until peritoneal progression, assessed for the individual cohorts and treatment arms and also compared between arms within cohorts
Time frame: baseline, every 3 months post-treatment for 2 years, than every 6 months for a total of 5 years
To estimate the peritoneal progression-free survival probability as a function of tissue response to ex vivo simulated HIPEC in the SMART System and in vivo HIPEC, as assessed by percent necrosis and Ki-67, in a preliminary fashion
median amount of time participant survives from time of cytoreduction until peritoneal progression, as assessed in tissue response by percent necrosis and Ki-67
Time frame: baseline, every 3 months post-treatment for 2 years, than every 6 months for a total of 5 years
To evaluate overall survival for up to 5 years after CRS and HIPEC
median amount of time participant survives from CRS and HIPEC until death or for up to 5 years post-treatment
Time frame: death or 5 years post-treatment
To measure Quality of Life by FACT-C and EQ-5D-5L
outcomes from QOL will be reported using descriptive statistics, as well as comparing the results from before to after treatment: physical and mental health-related quality of life, social and emotional wellbeing, and disease-related symptoms
Time frame: baseline, every 3 months post-treatment for 2 years, than every 6 months for a total of 5 years
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