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Magnetic Anastomosis Device Relief of Malignant Gastric Outlet Obstruction

Endoscopic Gastroenteric Anastomosis Formed by Magnetic Compression and Stent Placement for Palliation of Malignant Gastric Outlet Obstruction

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00487552
Acronym
MAD
Enrollment
18
Registered
2007-06-18
Start date
2008-01-31
Completion date
2011-04-30
Last updated
2017-08-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastric Outlet Obstruction

Keywords

endoscopy, esophagogastroduodenoscopy, gastric outlet obstruction, gastro-jejunostomy, gastric malignancy, duodenal stent, Malignant Gastric Outlet Obstruction

Brief summary

The purpose of this study is to determine if the Cook Magnetic Anastomosis Device can be used to safely and successfully create a patent gastrojejunal anastomosis in subjects requiring treatment of gastric outlet obstruction caused by malignancy.

Detailed description

Surgical treatments for malignant gastric outlet obstructions carry substantial risks and are associated with postoperative morbidity. External compression from advancing tumor or tissue growth through the stent can cause stenosis or re-obstruction. In these patients, the creation of a patent fistula that allows gastric emptying may significantly improve palliation. Minimally invasive techniques that carry no greater risks than enteral stenting may provide a viable palliative treatment. The primary objectives are safety, and successful creation of a gastro-jejunal anastomosis. Secondary objectives are successful resumption or improvement in the ability to tolerate PO feeding, rate of stent migration, and duration of stent and anastomosis patency.

Interventions

DEVICECook Magnetic Anastomosis Device (MAD) with Stent

Gastro-jejunal anastomosis

Sponsors

MED Institute, Incorporated
CollaboratorINDUSTRY
Cook Endoscopy
CollaboratorINDUSTRY
Cook Group Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with unresectable malignancy with, or at risk of developing gastric outlet obstruction with GOOSS ≤ 2 * Karnofsky Performance Score ≥ 60

Exclusion criteria

* Patient is unable to understand and execute informed consent * Age below 18 years * Patients with any prior gastrointestinal surgery that significantly alters gastrojejunal anatomy * Implanted cardiac pacemaker, defibrillator or ventricular assist device * Requirement for chronic anticoagulation, or with uncorrectable coagulopathy * Patients receiving chronic steroids or other drugs that may impair wound healing or formation of an intact anastomosis * Simultaneously participating in another investigational drug or device * Patients with suspicion of, or documented multiple small bowel strictures

Design outcomes

Primary

MeasureTime frameDescription
Success Rate Associated With the Creation of a Gastro-jejunal Anastomosis Using the Cook Magnetic Anastomosis Device With Trans-anastomotic Deployment of a Gastro-jejunal or Duodenal StentApproximately 8-10 daysSuccess is defined as placement of the gastric and jejunal magnets, creation of the anastomosis, and deployment of the gastro-jejunal stent.

Countries

Belgium, Italy, Netherlands

Participant flow

Participants by arm

ArmCount
Magnetic Anastomosis Device (MAD) With Stent
Magnetic Anastomosis Device used with gastro-jejunal or duodenal stent for palliative treatment of gastric outlet obstruction.
18
Total18

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath due to progressive malignancy2
Overall StudyStent not placed1
Overall StudyUnsuccessful magnet placements3

Baseline characteristics

CharacteristicMagnetic Anastomosis Device (MAD) With Stent
Age, Continuous68.3 years
STANDARD_DEVIATION 11
Current Treatments
Brachytherapy
0 participants
Current Treatments
Chemotherapy
4 participants
Current Treatments
No treatment - Palliative care only
10 participants
Current Treatments
Other
1 participants
Current Treatments
Patients with no current treatments
3 participants
Current Treatments
Radiotherapy
0 participants
Karnofsky Score72.2 Units on a scale
STANDARD_DEVIATION 9.4
Presenting Condition
Cholangio cancer
3 participants
Presenting Condition
Gastric cancer
1 participants
Presenting Condition
Other
2 participants
Presenting Condition
Pancreatic cancer
12 participants
Sex: Female, Male
Female
5 Participants
Sex: Female, Male
Male
13 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
4 / 12
serious
Total, serious adverse events
10 / 12

Outcome results

Primary

Success Rate Associated With the Creation of a Gastro-jejunal Anastomosis Using the Cook Magnetic Anastomosis Device With Trans-anastomotic Deployment of a Gastro-jejunal or Duodenal Stent

Success is defined as placement of the gastric and jejunal magnets, creation of the anastomosis, and deployment of the gastro-jejunal stent.

Time frame: Approximately 8-10 days

ArmMeasureValue (NUMBER)
Magnetic Anastomosis Device (MAD) With StentSuccess Rate Associated With the Creation of a Gastro-jejunal Anastomosis Using the Cook Magnetic Anastomosis Device With Trans-anastomotic Deployment of a Gastro-jejunal or Duodenal Stent12 participants
Post Hoc

Success Rate of Mature Anastomosis Creation Using Magnetic Anastomosis Device (MAD)

Endoscopy was performed to determine whether an anastomosis (hole) was successfully created.

Time frame: Approximately 8-10 days

Population: Patients who underwent a second endoscopy after successful magnet placement

ArmMeasureValue (NUMBER)
Magnetic Anastomosis Device (MAD) With StentSuccess Rate of Mature Anastomosis Creation Using Magnetic Anastomosis Device (MAD)13 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026