Rapid Gastric and Pancreas Cancer Staging Utilizing Peritoneal Lavage
Phase: PHASE2
Conditions: Gastric Cancer, Pancreatic Cancer
Sponsor: Memorial Sloan Kettering Cancer Center

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Rapid Gastric and Pancreas Cancer Staging Utilizing Peritoneal Lavage 
 
 
MSKCC NON THERAPEUTIC PROTOCOL 
 
 
Principal Investigator/Department: 
T. Peter Kingham, MD 
Surgery 
Co-Principal Investigator(s)/Department: 
Daniel Coit, MD 
Vivian Strong, MD 
Surgery 
Surgery 
Investigator(s)/Department: 
Peter Allen, MD 
Murray Brennan, MD 
Ronald DeMatteo, MD 
William Jarnagin, MD 
Yuman Fong, MD 
Michael D’Angelica, MD 
Mithat Gonen, PhD 
Oscar Lin, MD 
Linda Ma, MD 
Surgery 
Surgery 
Surgery 
Surgery 
Surgery 
Surgery 
Epidemiology / Biostats 
Pathology 
Surgery 
Consenting Professional(s)/Department: 
Daniel Coit, MD 
Vivian Strong, MD 
T. Peter Kingham, MD 
Peter Allen, MD Murray 
Brennan, MD Ronald 
DeMatteo, MD William 
Jarnagin, MD Yuman 
Fong, MD Michael 
D’Angelica, MD 
Surgery 
Surgery 
Surgery 
Surgery 
Surgery 
Surgery 
Surgery 
Surgery 
Surgery 
 
 
Please Note: A Consenting Professional must have completed the mandatory Human 
Subjects Education and Certification Program. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Amended: 19-Nov-2015 
Memorial Sloan-Kettering Cancer Center 
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New York, New York 10065 

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Table of Contents 
 
1.0 
PROTOCOL SUMMARY AND/OR SCHEMA..................................................................... 3 
 
2.0 
OBJECTIVES AND SCIENTIFIC AIMS.............................................................................. 4 
 
3.0 
BACKGROUND AND RATIONALE ................................................................................... 4 
 
4.0 
OVERVIEW OF STUDY DESIGN/INTERVENTION ......................................................... 10 
 
4.1 
Design .......................................................................................................................... 10 
 
4.2 
Intervention ................................................................................................................... 12 
 
5.0 
CRITERIA FOR SUBJECT ELIGIBILITY ......................................................................... 13 
 
5.1 
Subject Inclusion Criteria .............................................................................................. 13 
 
5.2 
Subject Exclusion Criteria ............................................................................................. 13 
 
6.0 
RECRUITMENT PLAN..................................................................................................... 14 
 
7.0 
ASSESSMENT/EVALUATION PLAN .............................................................................. 14 
 
8.0 
TOXICITIES/SIDE EFFECTS ........................................................................................... 14 
 
9.0 
PRIMARY OUTCOMES ................................................................................................... 14 
 
10.0 CRITERIA FOR REMOVAL FROM STUDY ..................................................................... 14 
 
11.0 BIOSTATISTICS .............................................................................................................. 15 
 
12.0 
RESEARCH PARTICIPANT REGISTRATION AND RANDOMIZATION PROCEDURES 
17 
 
12.1 Research Participant Registration.................................... Error! Bookmark not defined. 
 
15.2 Randomization .............................................................................................................. 17 
 
13.0 DATA MANAGEMENT ISSUES....................................................................................... 17 
 
13.1 Quality Assurance......................................................................................................... 17 
 
13.2 Data and Safety Monitoring........................................................................................... 18 
 
14.0 PROTECTION OF HUMAN SUBJECTS .......................................................................... 19 
 
14.1 Privacy.......................................................................................................................... 20 
 
14.2 Serious Adverse Event (SAE) Reporting ....................................................................... 20 
 
14.2.1................................................................................................................................... 21 
 
15.0 INFORMED CONSENT PROCEDURES .......................................................................... 21 
 
15.1 Research Authorization.................................................... Error! Bookmark not defined. 
 
19.0 REFERENCES ................................................................................................................. 22 
 
20.0 APPENDICES .................................................................................................................. 23 

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1.0 
PROTOCOL SUMMARY AND/OR SCHEMA 
 
This is a prospective study examining the utility of minimally invasive percutaneous 
peritoneal lavage for rapid gastric and pancreas cancer staging. The first aim of this study 
will be to evaluate whether results of percutaneous lavage are concordant with those of 
laparoscopically guided lavage. The secondary endpoint of this study will be to examine 
the safety of this technique. 
 
Patient population: All patients with gastric or pancreatic cancer who currently undergo 
laparoscopic guided peritoneal lavage and cytology. 
 
Design: Percutaneous lavage will be performed via a catheter placed over a wire prior to 
the standard laparoscopic lavage. The two techniques will be compared by evaluating 
peritoneal fluid cytology. 
 
Time to completion: We will continue to enroll patients to meet two requirements: a total of 
at least 95 patients, and at least 10 gastric cancer patients with positive lavage 
(percutantous or laparoscopic) and 10 pancreas cancer patients with positive lavage 
(percutantous or laparoscopic) . This will likely take 18 months. 

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2.0 
OBJECTIVES AND SCIENTIFIC AIMS 
 
Hypothesis: Percutaneous peritoneal lavage will yield results that are concordant with 
laparoscopically guided lavage. 
Primary Objective: To determine if the cytology results from percutaneous peritoneal lavage are in 
concordance with the cytology from laparoscopically guided peritoneal lavage. 
Secondary Objective: Percutaneous peritoneal lavage is a safe technique to utilize in place of 
laparoscopic lavage. 
 
 
 
3.0 
BACKGROUND AND RATIONALE 
 
 
Peritoneal cytology has been shown to predict outcome in patients with gastric cancer in 
multiple studies. 2,3,5 Although studies of outcomes in patients with pancreas cancer are 
not as convincing as in patients with gastric cancer, one review showed that 5% of 
pancreas cancer patients who were resected and had positive cytology had a significantly 

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worse overall survival when compared to patients who were resected with negative 

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Page 5 o
cytology (8 months vs. 16 months p<.001).9 Currently, patients are diagnosed with gastric 
 
cancer by endoscopy and undergo endoscopic ultrasound at a subsequent visit. After 
ultrasound staging, patients undergo diagnostic laparoscopy with peritoneal lavage. If 
there is no gross disease and the lavage is negative, then patients undergo a gastrectomy 
(either before or after chemotherapy). Patients with pancreas cancer are diagnosed via CT 
scan and proceed to the operating room if the disease appears to be resectable or are 
offered participation in clinical trials of neoadjuvant therapy. Staging laparoscopy is 
frequently performed to rule out sub-radiologic metastatic disease. Given the need for 
improved operating room utilization, for decreased healthcare expenditure, and possibility 
of decreasing time to treatment, we hypothesize that rapid staging can be performed with 
percutaneous peritoneal lavage. This protocol will evaluate the equivalence of 
percutaneous and laparoscopically guided lavage. It will also determine the safety of using 
a percutaneous technique. The results from this study will serve as preliminary data to 
utilize percutaneous lavage at the time of EUS or in a monitored setting outside of the 
operating room. This could change standard practice patterns. In the future, patients with 
gastric or pancreas cancer could undergo percutaneous washings at the time of EUS. If 
the lavage is positive, those patients would avoid laparoscopy and could proceed directly 
to palliative treatment. If the lavage is negative, patients would go to the OR for 
laparoscopy and resection at the same setting if no gross disease is identified. 
 
 
 
 
Background and Significance: 
 
 
Gastric cancer 
 
 
Locoregional recurrences are common following curative resection of gastric cancer.  D’Angelica 
et al reported on patterns of recurrence among 1172 patients who underwent gastric resections 8. 
Of the 42% patients who recurred, 26% recurred locoregionally; 16% were distant and 
locoregional, 14% were peritoneal only, and 9% were locoregional only. Since intraabdominal 
recurrence is a common site for metastatic spread of gastric cancer, peritoneal lavage has been 
utilized at the time of diagnostic laparoscopy to assist in identifying patients with microscopic 
peritoneal disease. 
 
 
Several studies have shown that laparoscopy can be used 
to identify patients with gastric cancer who have 
 
Amended: 19-Nov-2015 

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radiographically occult metastatic disease. Brennan reported on 111 patients who were 
 
candidates for resection where 32/103 were found to have M1 disease at the time of laparoscopy; 
 
72% of M1 disease involved the abdominal peritoneum 3. Burke showed that 33/127 patients 
(26%) who were candidates for resection had positive cytology 2. Overall, 3 of the 33 resected 
patients who were stage III had positive cytology. In Burke’s study, survival was significantly 
worse than those with cytology negative stage III disease. Of the 51 patients with M1 disease on 
laparoscopy 30 had positive cytology (59%). With macroscopic M1 disease, 73% of patients had 
positive cytology in all quadrants (Figure 1). 
 
 
Badgwell looked at 381 patients with gastric or GE junction tumors that were thought to be 
resectable, who underwent diagnostic laparoscopy and lavage prior to neoadjuvant chemo. 
Survival was dramatically inferior in the patients with positive cytology. (Figure 2).1 Twenty two 
percent of patients were found to have peritoneal mets on laparoscopy, 13% had positive lavage 
with no peritoneal disease, and 75% had negative lavage. There was no significant difference 
between median overall survival in patients with positive peritoneal cytology and no visible 
metastatic disease and patients with gross metastatic disease (11.6 months vs. 10. months, 
p=.06) (Figure 3). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 2 
Figure 3 
 
 
 
A third study examining the impact of peritoneal cytology on survival was by Bentrem. In this 
study of curatively resected patients, 19/181 with preoperative T3 or T4 disease had positive 
cytology without macroscopic M1 disease.3   Cytology status was the strongest independent 
preoperative predictor of survival with a 15 month median survival for patients with positive 
cytology compared to a 99 month median survival in patients with negative cytology. 

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The importance of identifying patients with M1 disease is that these patients are treated with 
chemotherapy instead of resection. There are randomized trials that have shown response rates 
between 49 and 56% with the ECF regimen for patients with locally advanced gastric cancer.10 
Cunningham reported the results of the MAGIC trial in the NEJM in 2006.7 They found that for 
 
patients with resectable gastric or GE junction adenocarcinoma neoadjuvant epirubicin, cisplatin, 
and fluorouracil improved survival. In both the MAGIC trial and INT 0116 trial, overall 5-year 
survival for all resected patients was less than 30%, despite improvements with neoadjuvant 
chemotherapy and radiation therapy.18 One way to improve surgical outcome is to operate on a 
more select population, which is where staging with peritoneal lavage is useful. Yonemura treated 
61 patients with neoadjuvant intraperitoneal and systemic chemo in patients with peritoneal 
disease.24 Of the 39 patients with positive cytology at the beginning of treatment, only 17 patients 
had positive lavage at the completion of treatment. Another regimen described by Brenner in a 
phase II trial is neoadjuvant cisplatin-5FU with postoperative IP floxuridine/leucovorin for T2N1 or 
T3-4 disease.4 
 
Pancreatic cancer 
 
 
Approximately 20-30% of patients with radiologically resectable disease pancreas cancer have M1 
disease identified on laparoscopy. 6 Ferrone looked at 462 patients who had radiographically 
resectable pancreas cancer and underwent diagnostic laparoscopy and cytology.9 Overall positive 
cytology rate was 17% and it was reported most frequently in the setting of macroscopic 
peritoneal disease. In pancreas cancer, the data correlating cytology results to survival are not as 
convincing as it is in gastric cancer, although current AJCC Staging characterizes patients with 
positive peritoneal cytology as Stage IV. Yamada examined 157 patients who had curative 
resections and found that in resected patients the median survival was equal between patients 
with positive and negative cytology (13.6 and 13.5 months).23 
 
 
Ferrone found that positive cytology did not 
significantly predict median survival in patients 
with locally advanced or distant metastatic 
disease.  However, among patients undergoing 
pancreatic resection, the 5% of patients with 
positive cytology had a significantly worse 
overall survival when compared to patients who 
were resected with negative cytology (8 vs. 16 
Figure 4 

studied intensively in evaluating trauma patients, and has been shown to be both safe and 
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months, p<.001). It is this group of patients that would benefit from earlier less invasive diagnosis 
 
of positive peritoneal cytology. 
 
 
 
 
 
Percutaneous peritoneal lavage is well established in trauma 
 
 
This protocol aims to assess the utility of percutaneous peritoneal lavage to obtain the specimens. 
Percutaneous peritoneal lavage has been performed for many years in the trauma setting. While 
originally done with a surgical cutdown to the fascia with direct insertion of the lavage catheter, 
percutaneous techniques have been validated. Saunders prospectively randomized 176 blunt 
trauma patients requiring diagnostic peritoneal lavage (DPL) to open vs. percutaneous DPL with 
Veress needles and a 9Fr catheter.19 He reported a shorter (2.73 minutes) procedure with the 
percutaneous procedure, no false-negatives, 1 false positive in each group, and 11% of 
percutaneous DPLs had <200mL return of the 1000mL instilled. Cue randomized 327 blunt 
trauma patient to open vs. percutaneous DPL and reported equal results between the two 
groups.20 Hodgson performed a meta-analysis and found percutaneous and open had similar 
accuracy and complications.12 Nagy reported a .8% complication rate, which was similar between 
the open and percutaneous group in a series with over 2500 DPLs. 22 
 
 
 
 
Summary 
 
 
Laparoscopy has proven to be a useful method of staging patients with gastric and pancreas 
cancer by identifying subradiologic M1 disease not apparent on preoperative imaging tests. 
Peritoneal lavage further increases the yield of clinically occult stage IV disease by identifying 
patients with clinically significant positive cytology2,3,5.  The majority of patients with gross 
peritoneal disease visualized by laparoscopy have positive cytology. In addition, there is a subset 
of patients with no visible disease who have positive lavage. Both populations behave in a similar 
fashion, consistent with M1 disease. 
 
Our long-term goal is to make gastric and pancreas cancer staging more efficient. Currently, 
lavage is performed at the time of diagnostic laparoscopy or resection. If lavage is positive, 
patients are treated with chemotherapy and may be reevaluated for resection after completion of 
their treatment regimen. We hypothesize that peritoneal lavage using the diagnostic peritoneal 
lavage technique will be concordant to laparoscopically guided lavage. This technique has been 

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accurate. In the future, utilizing ambulatory lavage at the time of endoscopic ultrasound will assist 
 
in rapidly staging patients and avoiding unnecessary laparoscopy. If percutaneous lavage at the 
time of EUS is negative, patients will go to the operating room with the definitive plan of 
laparoscopy to rule out gross M1 disease and resection. Ten to 30% of these patients should 
have positive lavage. This is based on results from 3 papers: 
 
• 
Burke5: 26% of all potentially resectable patients + cytology 
 
• 
Bentrem3: 10% of T3/T4 patients without visible disease +cytology 
 
• 
Badgwell2: 15% of potentially resectable patients with no visible M1 disease had + 
 
cytology; of the 22% with visible M1 disease, 50% of them had positive cytology 
 
 
 
 
This project is innovative because it will adapt a procedure that has effectively been used in 
trauma surgery to detect gastric and pancreas cancer cells present in peritoneal lavages. This 
study fits into the overall research goals of the department of surgery at MSKCC because it will 
develop a diagnostic tool that is minimally invasive and can be used in the CIGI suite when it is 
established. 
 
 
 
 
Future Directions 
 
 
This protocol is important because if it proves that percutaneous lavage is a viable staging test, it 
may change how patients with gastric and pancreatic cancer are staged. It could enable patients 
to undergo more efficient complete staging in one-step with EGD/EUS and peritoneal evaluation. 
Although not part of the present proposal, it should allow the technique to be used in a monitored 
setting, with anesthesia personnel present and pre-procedure labs evaluated. The percutaneous 
lavage will be performed after the EUS, in order to avoid distorting the EUS imaging. 
 
In gastric cancer, among patients felt to be resectable by noninvasive imaging, laparoscopy will 
identify 20-30% of patients with M1 disease. Of this 20-30% of patients, 75% will have positive 
cytology. If positive cytology is identified by lavage, then it would avoid laparoscopy in 15-22% of 
patients felt to be operable based on imaging. Similar to patients with gastric cancer, 
approximately 20-30% of patients with radiologically resectable pancreas cancer have M1 
disease identified on laparoscopy. Of this 20-30%, 50% of these patients will have positive 
cytology, so 10-15% of patients felt to be operable based on imaging will have positive cytology 

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and avoid laparoscopy. An algorithm as to how this procedure can change clinical practice in the 
 
future is: 
 
 
EGD = adenocarcinoma of stomach 
 
 
or CT scan suspicious for adenoca pancreas 
 
 
 
 
 
Noninvasive imaging = no metastatic disease 
 
 
 
 
 
 
 
 
 
 
 
 
 
Percutaneous Lavage + 
Percutaneous Lavage - 
 
 
 
 
 
 
 
Chemo 
OR for diagnostic laparoscopy 
 
 
+ 
- 
 
 
Chemo 
Chemo/Resection 
 
 
 
 
 
 
 
 
 
 
4.0 
OVERVIEW OF STUDY DESIGN/INTERVENTION 
 
4.1 
Design 
 
Patients with gastric cancer or pancreatic cancer who require diagnostic laparoscopy will be 
identified and offered enrollment in this trial. If they consent, they would undergo a percutaneous 
lavage for cytology in the OR, followed by immediate laparoscopy for cytology. The concordance 

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rate between percutaneous lavage and laparoscopic lavage will be determined. The trial will 
 
continue until at least 95 patients and 20 patients with positive lavage are accrued. At least 10 
patients with positive cytology from either gastric or pancreas cancer will be required so that there 
are enough data on each disease to show equivalence. It is highly unlikely that concordance will 
be disease specific, as theoretically there is no difference between sampling fluid with a 
laparoscopic suction device or a catheter inserted directly into the abdomen. The significance of 
positive cells may differ between the two diseases, but the technical diagnosis of cancer cells in 
peritoneal fluid is the same between the two diseases. Pancreas and gastric cancer patients are 
included together in this study, because it is testing a technique that is not cancer specific, and 
patients with both diseases potentially benefit from this technique in the future. It is estimated that 
approximately 50% of patients accrued for the study will have gastric cancer and 50% pancreas 
cancer. Ten to 30% of these patients should have positive lavage. Excess lavage fluid may be 
retained for potential future use under IRB #00-032. 
 
The percutaneous lavage cytology results will be compared to those of traditional laparoscopically 
directed lavage. If the results of the percutaneous lavage are positive more often than 
laparoscopically guided, it is theoretically possible that the percutaneous lavage diluted the 
laparoscopic lavage or removed the only positive cells in the peritoneum. This event is extremely 
unlikely, as when one laparoscopic lavage is positive, generally all specimens are positive. For 
clinical decision making, it does not matter where the positive cells come from or by what method 
they are detected: any positive cells, from any quadrant or obtained with any method, represents 
a positive lavage. With this protocol, a finding of positive percutaneous lavage and negative 
laparoscopic lavage will be treated as a positive lavage for clinical decision making, and the 
patient will be referred for appropriate therapy. This provides patients with the appropriate clinical 
treatment, because positive cells obtained via percutaneous or laparoscopic lavage fluid all 
represent the same tumor biology, and it does not matter what method of introducing and 
extracting this fluid from the abdomen is used. For the purposes of experimental design in this 
study comparing percutaneous to laparoscopic lavage in this study, if the percutaneous method is 
positive and the laparoscopic lavage is negative, this will be treated as a “false positive.” Thus, in 
the hypothetical situation, which we believe is a theoretical but unlikely possibility, where a patient 
who has a positive percutaneous lavage with a negative laparoscopic lavage: 
 
1.  Clinically, patients will be treated with whatever regimen is considered appropriate for 
a patient with a positive lavage 

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2.  Experimentally, for this study comparing percutaneous and laparoscopic lavage, this 
 
patient will be labelled as having a “false positive” test, as in this study attempting to 
prove equivalence between two techniques, laparoscopic lavage will be considered the 
true positive. 
 
The presence of any positive cells will define a patient as positive, regardless of the number of 
positive cells. 
 
 
 
 
Secondary objective: 
 
The safety of using percutaneous lavage will be evaluated as a secondary objective. This will 
entail an examination and reporting of all potential complications related to using the 
percutaneous catheter. 
 
 
The protocol will be suspended and reviewed if: 
 
• 
Four serious adverse events occur (as described in 8.0). 
 
• 
After the first 16 positive laparoscopic lavages, 13 or less of the percutaneous lavages are 
positive. 
 
 
 
4.2 
Intervention 
 
Diagnostic peritoneal lavage will be performed at the time of laparoscopy utilizing a Veress 
needle/Seldinger technique to insert a peritoneal dialysis catheter. This is not a new 
technique. The Veress needle will be inserted in the abdominal wall, at a site to be left up to the 
individual surgeon. Caudal traction will be applied to the abdominal wall to 
provide a firm abdominal wall to insert the needle through, minimizing the peritoneum from 
tenting down closer to visceral structures. Intraperitoneal placement of the catheter will be 
confirmed by injection of saline into the needle with no resistance and with the saline in 
the hub of the needle falling into the peritoneal cavity spontaneously. Three passes with 
the needle will be allowed, after which an unconfirmed needle placement will cause 
cessation of the procedure. Patients who have a failed lavage will not be included in the 
95 patients required for the study, but will be documented as a failed lavage, and this 
number will be reported with the final study results. A guide wire will be placed through the 
Veress and utilizing the Seldinger technique, a 9Fr peritoneal catheter will be placed. 

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800cc of saline will be infused and 60ml will be extracted and sent to the cytopathology lab. When 
 
the laparoscope is inserted for laparoscopic guided lavage, no additional fluid will be instilled, 
unless there is no available fluid in the RUQ, LUQ, and pelvic locations that are currently 
sampled. Instead, the fluid already present from the percutaneous lavage will be utilized. 
In this protocol, several steps will be taken to avoid and identify potential complications. The 
percutaneous catheter will be left in place so that during laparoscopy the location of the catheter 
can be noted. A laparoscope will be inserted immediately after performance of the DPL, so any 
intraabdominal complication will be identified immediately at the time of the procedure. 
 
 
5.0 
CRITERIA FOR SUBJECT ELIGIBILITY 
 
 
 
 
5.1 
Subject Inclusion Criteria 
 
• 
Men and women 18 years of age and older 
 
• 
Informed consent in keeping with the policies of Memorial Sloan-Kettering Cancer Center 
 
• 
Presentation of gastric or pancreatic cancer based on objective findings by either: 
 
o CT scan 
 
o Endoscopy 
 
o Pathologic examination 
 
• 
Candidate for surgical treatment and are scheduled for laparoscopy with peritoneal 
lavage. 
 
 
 
 
 
5.2 
Subject Exclusion Criteria 
 
• 
Under 18 years of age 
 
• 
Inability to speak or read English, and an appropriate translator is not identifiable 
 
• 
Unable or unwilling to give informed consent 
 
• 
Patients with synchronous cancers of other abdominal organs 
 
• 
Multiple prior surgical procedures on the abdomen where the surgeon feels that 
percutaneous lavage may be dangerous. 

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6.0 
RECRUITMENT PLAN 
 
Subjects will be recruited by surgeons in the Gastric and Mixed Tumor or 
Hepatopancreatobiliary Services performing diagnostic laparoscopic lavage for gastric or 
pancreatic cancer. This will include women and minorities who are undergoing these 
procedures. 
 
 
7.0 
ASSESSMENT/EVALUATION PLAN 
 
The pathology lab at MSKCC will perform cytology on both of the specimens. 
 
 
 
 
8.0 
TOXICITIES/SIDE EFFECTS 
 
Serious adverse events with using a Veress needle include bowel injury, major omental injury, 
and major abdominal vessel or anterior abdominal wall vessel injury. In a Cochrane 
review of laparoscopic entry techniques, incidence of bowel perforation with all types of 
laparoscopic entry techniques was 1.8/1,000 cases, and abdominal bleeding episodes 
were reported at .9/1,000 cases.1 These rates reflect injuries that are caused generally by 
periumbilical entry. There were no significant differences in rate of injury between Veress 
needle entry or the direct cut-down technique. In this protocol, several steps will be taken 
to avoid and identify potential complications. Caudal traction on the abdominal wall helps 
prevent the peritoneum from collapsing near visceral organs. In addition, a laparoscope 
will be inserted immediately after performance of the DPL, so any intraabdominal 
complication will be identified immediately at the time of the procedure. Failed entry will also be 
documented as part of the second aim of the protocol, but is not considered an adverse event 
unless there is morbidity associated with it (e.g. bowel injury). 
 
 
9.0 
PRIMARY OUTCOMES 
 
The pathology lab at MSKCC will perform cytology to compare percutaneous and laparoscopic 
lavage results. 
 
 
 
 
10.0 CRITERIA FOR REMOVAL FROM STUDY 

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• 
Patients will be removed from the study upon the patient’s request, or if the patient is 
 
found to be ineligible for the protocol as designated in the section on criteria for subject 
eligibility. 
• 
In addition, patients can be removed from the study if there are unexpected complications 
from the percutaneous lavage. 
 
 
11.0 BIOSTATISTICS 
 
The primary objective is to determine if percutaneous lavage and laparoscopically guided lavage 
are concordant in terms of diagnosing intraperitoneal metastases. The outcome of the lavage 
tests examined for each patient will be binary: positive or negative (suspicious cytology will be 
treated as positive, consistent with current practice). We will  test the null hypothesis that the 
concordance is at least 80% using a two-stage design distinguishing between 80% and 90% with 
Type I and Type II errors of 10%. 80% was chosen as a reasonable percentage, because in the 
future, the percutaneous lavage will be used at the time of endoscopy, and if it is falsely negative, 
patients will proceed to laparoscopy as is the current practice, and will be afforded all appropriate 
treatment options. We will enroll 37 patients at the first stage and stop the trial if in 30 or less 
patients the percutaneous and laparascopically guided lavage are concordant. Given the small 
sample size, there will be no requisite number of positive patients in this interim analysis group. If 
at least 31 concordances are observed out of the 37 patients in the first stage, we will enroll 58 
more patients (for a total of 95). We will continue to enroll patients to meet two requirements: a 
total of at least 95 patients, and at least 10 patients with positive lavage and gastric cancer and 10 
patients with positive lavage and pancreas cancer. If the two tests agree in 80 or more patients 
out of 95, we will recommend percutaneous lavage for further study. 
 
 
 
Laparoscopic Positive 
Laparoscopic Negative 
Percutaneous Positive 
A 
C 
Percutaneous Negative 
D 
B 
 
 
A+B (concordant tests) must be greater than 80% of total number of patients. 
A+B+C concordance must be >90% 
D must be<10% 
 
 
 
The protocol will be suspended if: 

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• 
After the first 16 positive laparoscopic lavages, 13 or less of the percutaneous lavages are 
 
positive. 
 
 
 
Cytology is the key test, as that is the test that is utilized for clinical decisions, and equivalence 
will be defined as similar cytological results between the percutaneous and laparoscopic lavage 
groups. 
 
The secondary objective is to determine the safety of the patients undergoing percutaneous 
lavage. This will be reported with a 95% confidence interval. Safety will be measured as number 
of bowel injury, major omental injury, or major abdominal vessel or anterior abdominal wall 
vessel injury. 
 
 
 
 
Limitations: 
 
There is a very small risk that instilling fluid percutaneously prior to conventional laparoscopically 
guided lavage will dilute the laparoscopic lavage and artificially improve the results of 
percutaneous lavage. Given that 800cc will be instilled and less than 60cc will be withdrawn for 
the percutaneous portion, any residual fluid in the LUQ will be utilized for the LUQ laparoscopic 
lavage. It is likely that no additional fluid will have to be instilled into the abdomen, but if there is 
not enough fluid left over from the percutaneous lavage, then additional fluid will be instilled 
laparoscopically. If the laparoscopic lavage is negative and the percutaneous lavage is positive, it 
is possible this discrepancy is due to a dilutional effect, and this will be treated as a “false 
positive” result. Clinically, this indicates that percutaneous lavage can identify disease when 
present, and the positive result will be used to initiate appropriate systemic treatment. This is the 
same as having lavage positive in one quadrant and all other quadrants negative. It does not 
matter where the positive cells come from or by what method they are detected. Any positive 
cells, from any quadrant or obtained with any method, represent positive lavage clinically. 
Another limitation is that visual disease will not be identified. Currently, patients undergo staging 
laparoscopy and lavage, so both visual and microscopic disease is identified. In this protocol, 
since percutaneous and laparoscopic lavage are both performed at the same setting, this remains 
unchanged. If this protocol proves that percutaneous and laparoscopic lavage are equivalent with 
regard to cytology status, and the next study examines utilizing percutaneous lavage at the time 
of EUS, visible disease would be missed in cases with positive peritoneal cytology. As discussed 
in the background data, this is the point of peritoneal cytology – positive cytology is equivalent to 

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M1 disease; those patients with positive cytology by percutaneous lavage proceed to palliative 
 
chemotherapy without the need for laparoscopy. Those patients with negative cytology will 
undergo routine staging laparoscopy to rule out visible sub-radiologic disease, and either proceed 
to immediate resection, or go on to appropriate neoadjuvant therapy. In the presence of negative 
cytology but visible sub-radiologic disease, appropriate palliative treatment will be offered. Finally, 
patients who have a failed lavage will not be included in the 95 patients required for  the study, 
but will be documented as a failed lavage, and this number will be reported with the final study 
results. 
 
 
 
12.0 
RESEARCH PARTICIPANT REGISTRATION AND RANDOMIZATION 
PROCEDURES 
 
12.1 
Research Participant Registration 
Confirm eligibility as defined in the section entitled Criteria for Patient/Subject Eligibility. 
Obtain informed consent, by following procedures defined in section entitled Informed 
Consent Procedures. 
 
During the registration process registering individuals will be required to complete a 
protocol specific Eligibility Checklist. 
 
All participants must be registered through the Protocol Participant Registration (PPR) Office at 
 
Memorial Sloan-Kettering Cancer Center. PPR is available Monday through Friday from 8:30am 
 
– 5:30pm at 646-735-8000. The PPR fax numbers are (646) 735-0008 and (646) 735-0003. 
Registrations can be phoned in or faxed. The completed signature page of the written 
consent/verbal script and a completed Eligibility Checklist must be faxed to PPR. 
 
 
 
12.2 
Randomization 
 
This study does not involve randomization. 
 
 
 
13.0 DATA MANAGEMENT ISSUES 
 
All data will be collected by an RSA.  A CRDB database will be created on a password locked 
server at MSKCC for access to the data limited to the study coordinators.  It is estimated that this 
study will accrue approximately 95 to 115 patients over an 18 month period. 
 
 
13.1 
Quality Assurance 

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Weekly registration reports will be generated to monitor patient accruals and 
 
completeness of registration data.  Routine data quality reports will be generated to 
assess missing data and inconsistencies.  Accrual rates and extent and accuracy of 
evaluations and follow-up will be monitored periodically throughout the study period and 
potential problems will be brought to the attention of the study team for discussion and 
action 
Random-sample data quality and protocol compliance audits will be conducted by the 
study team, at a minimum of  two times per year, more frequently if indicated. 
 
 
 
 
 
13.2 
Data and Safety Monitoring 
 
The Data and Safety Monitoring (DSM) Plans at Memorial Sloan-Kettering Cancer Center 
were approved by the National Cancer Institute in September 2001. The plans address 
the new policies set forth by the NCI in the document entitled “Policy of the National 
Cancer Institute for Data and Safety Monitoring of Clinical Trials” which can be found at: 
http://cancertrials.nci.nih.gov/researchers/dsm/index.html.  The DSM Plans at MSKCC 
were established and are monitored by the Office of Clinical Research. The MSKCC Data 
and Safety Monitoring Plans can be found on the MSKCC Intranet at: 
http://mskweb5.mskcc.org/intranet/_assets/_tables/content/359709/DSMPlans07.pdf 
 
 
There are several different mechanisms by which clinical trials are monitored for data, 
safety and quality.  There are institutional processes in place for quality assurance (e.g., 
protocol monitoring, compliance and data verification audits, therapeutic response, and 
staff education on clinical research QA) and departmental procedures for quality control, 
plus there are two institutional committees that are responsible for monitoring the activities 
of our clinical trials programs. The committees: Data and Safety Monitoring Committee 
(DSMC) for Phase I and II clinical trials, and the Data and Safety Monitoring Board 
(DSMB) for Phase III clinical trials, report to the Center’s Research Council and 
 
Institutional Review Board. 
 
 
During the protocol development and review process, each protocol will be assessed for 
it’s level of risk and degree of monitoring required.  Every type of protocol (e.g., NIH 
sponsored, in-house sponsored, industrial sponsored, NCI cooperative group, etc.) will be 

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addressed and the monitoring procedures will be established at the time of protocol 
 
activation. 
 
 
 
 
14.0 PROTECTION OF HUMAN SUBJECTS 
 
The study is voluntary, and there are no benefits to the individual patient, other than possibly 
advancing the level of knowledge about future rapid staging tests. Privacy and confidentiality will 
be ensured by utilizing a password protected database on a secure server at MSKCC. All patient 
data will be protected by HIPAA regulations. There is no cost to the patient for participation in this 
study.  It will take place at the same time that the patient is already undergoing the diagnostic 
exam with the scope. The patient will not be paid for taking part in this study. 
 
 
The possible complications include: 
 
 
Likely 
 
 
• 
Mild discomfort at the needle insertion site. The tube used is similar in size to a 
large intravenous line like the one that gets placed in veins in the arm. 
 
 Less Likely 
 
• 
There is a chance that putting fluid in with this study will dilute the traditional 
laparoscopic lavage and falsely make the laparoscopic lavage negative. If this 
happens, a positive result from the percutaneous test will be considered overall 
positive. 
Rare but serious 
 
• 
Bowel injury. We know from large research studies that the risk of injuring the 
bowels is about 0.18%. 
• 
Major abdominal vessel or abdominal wall vessel injury. We know from large 
research studies that the risk of these injuries is about 0.09% 
• 
If there is a serious bowel injury or major abdominal vessel injury that is not 
recognized, or that can not be repaired, there also is a very small risk of death. 
 
 
Protection of human subjects from the above complications will include preoperative evaluation 
by anesthesia, preoperative laboratories, placement of the percutaneous catheter into a site to 
be selected by the operating surgeon to minimize visceral injury, caudal traction on the skin to 
increase abdominal wall tension to minimize underlying visceral injury, and laparoscopy 

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immediately after percutaneous lavage to check the location of the catheter and for the 
 
presence of any underlying visceral injury.  All patients will be monitored after the procedure in 
the PACU for possible complications. 
 
 
 
14.1 
Privacy 
 
MSKCC’s Privacy Office may allow the use and disclosure of protected health information 
pursuant to a completed and signed Research Authorization form. The use and disclosure 
of protected health information will be limited to the individuals described in the Research 
Authorization form. A Research Authorization form must be completed by the Principal 
Investigator and approved by the IRB and Privacy Board (IRB/PB). 
 
 
 
14.2 
Serious Adverse Event (SAE) Reporting 
 
Any SAE must be reported to the IRB/PB as soon as possible but no later than 5 calendar 
days. The IRB/PB requires a Clinical Research Database (CRDB) SAE report be 
submitted electronically to the SAE Office at sae@mskcc.org containing the following 
information: 
: 
 
Fields populated from CRDB: 
 
• 
Subject’s name (generate the report with only initials if it will be sent outside of 
 
MSKCC) 
 
• 
Medical record number 
 
• 
Disease/histology (if applicable) 
 
• 
Protocol number and title 
 
Data needing to be entered: 
 
• 
The date the adverse event occurred 
 
• 
The adverse event 
 
• 
Relationship of the adverse event to the treatment (drug, device, or intervention) 
 
• 
If the AE was expected 
 
• 
The severity of the AE 
 
• 
The intervention 
 
• 
Detailed text that includes the following 
 
o A explanation of how the AE was handled 

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o A description of the subject’s condition 
 
o Indication if the subject remains on the study 
 
o If an amendment will need to be made to the protocol and/or consent form. 
The PI’s signature and the date it was signed are required on the completed report. 
 
 
14.2.1 
 
None applicable. 
 
 
 
 
15.0 INFORMED CONSENT PROCEDURES 
 
Before protocol-specified procedures are carried out, consenting professionals will explain 
full details of the protocol and study procedures as well as the risks involved to 
participants prior to their inclusion in the study. Participants will also be informed that they 
are free to withdraw from the study at any time. All participants must sign an IRB/PB- 
approved consent form indicating their consent to participate. This consent form meets the 
requirements of the Code of Federal Regulations and the Institutional Review 
Board/Privacy Board of this Center. The consent form will include the following: 
 
1.  The nature and objectives, potential risks and benefits of the intended study. 
2.  The length of study and the likely follow-up required. 
3.  Alternatives to the proposed study. (This will include available standard and 
investigational therapies. In addition, patients will be offered an option of 
supportive care for therapeutic studies.) 
4.  The name of the investigator(s) responsible for the protocol. 
5.  The right of the participant to accept or refuse study interventions/interactions and 
to withdraw from participation at any time. 
 
Before any protocol-specific procedures can be carried out, the consenting professional 
will fully explain the aspects of patient privacy concerning research specific information.  In 
addition to signing the IRB Informed Consent, all patients must agree to the Research 
Authorization component of the informed consent form. 
 
Each participant and consenting professional will sign the consent form. The participant 
must receive a copy of the signed informed consent form. 

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16.0 REFERENCES 
 
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Badgwell B, Cormier JN, Krishnan S, et al. Does neoadjuvant treatment for gastric cancer 
patients with positive peritoneal cytology at staging laparoscopy improve survival? Ann Surg 
Oncol 2008;15:2684-91. 
 
2. 
Burke EC, Karpeh MS, Jr., Conlon KC, Brennan MF. Peritoneal lavage cytology in gastric 
cancer: an independent predictor of outcome. Ann Surg Oncol 1998;5:411-5. 
 
3. 
Bentrem D, Wilton A, Mazumdar M, Brennan M, Coit D. The value of peritoneal cytology 
as a preoperative predictor in patients with gastric carcinoma undergoing a curative resection. 
Ann Surg Oncol 2005;12:347-53. 
 
4. 
D'Angelica M, Gonen M, Brennan MF, Turnbull AD, Bains M, Karpeh MS. Patterns of 
initial recurrence in completely resected gastric adenocarcinoma. Ann Surg 2004;240:808-16. 
 
5. 
Yamada S, Takeda S, Fujii T, et al. Clinical implications of peritoneal cytology in 
potentially resectable pancreatic cancer: positive peritoneal cytology may not confer an adverse 
prognosis. Ann Surg 2007;246:254-8. 
 
6. 
Ferrone CR, Haas B, Tang L, et al. The influence of positive peritoneal cytology on 
survival in patients with pancreatic adenocarcinoma. J Gastrointest Surg 2006;10:1347-53. 
 
7. 
Findlay M, Cunningham D, Norman A, et al. A phase II study in advanced gastro- 
esophageal cancer using epirubicin and cisplatin in combination with continuous infusion 5- 
fluorouracil (ECF). Ann Oncol 1994;5:609-16. 
 
8. 
Cunningham D, Allum WH, Stenning SP, et al. Perioperative chemotherapy versus 
surgery alone for resectable gastroesophageal cancer. N Engl J Med 2006;355:11-20. 
 
9. 
Sano T. Adjuvant and neoadjuvant therapy of gastric cancer: a comparison of three pivotal 
studies. Curr Oncol Rep 2008;10:191-8. 
 
10. 
Yonemura Y, Bandou E, Sawa T, et al. Neoadjuvant treatment of gastric cancer with 
peritoneal dissemination. Eur J Surg Oncol 2006;32:661-5. 
 
11. 
Brenner B, Shah MA, Karpeh MS, et al. A phase II trial of neoadjuvant cisplatin- 
fluorouracil followed by postoperative intraperitoneal floxuridine-leucovorin in patients with locally 
advanced gastric cancer. Ann Oncol 2006;17:1404-11. 
 
12. 
Fujiwara Y, Doki Y, Taniguchi H, et al. Genetic detection of free cancer cells in the 
peritoneal cavity of the patient with gastric cancer: present status and future perspectives. Gastric 
Cancer 2007;10:197-204. 
 
13. 
Sugita Y, Fujiwara Y, Taniguchi H, et al. Quantitative molecular diagnosis of peritoneal 
lavage fluid for prediction of peritoneal recurrence in gastric cancer. Int J Oncol 2003;23:1419-23. 

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14. 
Kodera Y, Nakanishi H, Ito S, et al. Prognostic significance of intraperitoneal cancer cells 
in gastric carcinoma: analysis of real time reverse transcriptase-polymerase chain reaction after 5 
years of followup. J Am Coll Surg 2006;202:231-6. 
 
15. 
Wang JY, Lin SR, Lu CY, et al. Gastric cancer cell detection in peritoneal lavage: RT-PCR 
for carcinoembryonic antigen transcripts versus the combined cytology with peritoneal 
carcinoembryonic antigen levels. Cancer Lett 2005;223:129-35. 
 
16. 
Tamura N, Iinuma H, Takada T. Prospective study of the quantitative carcinoembryonic 
antigen and cytokeratin 20 mRNA detection in peritoneal washes to predict peritoneal recurrence 
in gastric carcinoma patients. Oncol Rep 2007;17:667-72. 
 
17. 
Kodera Y, Nakanishi H, Ito S, et al. Quantitative detection of disseminated cancer cells in 
the greater omentum of gastric carcinoma patients with real-time RT-PCR: a comparison with 
peritoneal lavage cytology. Gastric Cancer 2002;5:69-76. 
 
18. 
Katsuragi K, Yashiro M, Sawada T, Osaka H, Ohira M, Hirakawa K. Prognostic impact of 
PCR-based identification of isolated tumour cells in the peritoneal lavage fluid of gastric cancer 
patients who underwent a curative R0 resection. Br J Cancer 2007;97:550-6. 
 
19. 
Saunders CJ, Battistella FD, Whetzel TP, Stokes RB. Percutaneous diagnostic peritoneal 
lavage using a Veress needle versus an open technique: a prospective randomized trial. J 
Trauma 1998;44:883-8. 
 
20. 
Cue JI, Miller FB, Cryer HM, 3rd, Malangoni MA, Richardson JD. A prospective, 
randomized comparison between open and closed peritoneal lavage techniques. J Trauma 
1990;30:880-3. 
 
21. 
Hodgson NF, Stewart TC, Girotti MJ. Open or closed diagnostic peritoneal lavage for 
abdominal trauma? A meta-analysis. J Trauma 2000;48:1091-5. 
 
22. 
Nagy KK, Roberts RR, Joseph KT, et al. Experience with over 2500 diagnostic peritoneal 
lavages. Injury 2000;31:479-82. 
 
23. 
Redman CW, Chapman SE, Chan SY, Buxton EJ, Blackledge G, Luesley DM. Out-patient 
peritoneal lavage cytology in the detection of residual epithelial ovarian cancer. Cytopathology 
1991;2:291-8. 
 
24. 
Ahmad G, Duffy JM, Phillips K, Watson A. Laparoscopic entry techniques. Cochrane 
Database Syst Rev 2008:CD006583. 
 
 
 
 
17.0 
APPENDICES 
 
None