Safety and Preliminary Effectiveness of the BaroSense Articulating Circular Endoscopic (ACE) Stapler for Plication of Dilated Post-surgical Gastric Anatomy

Not Applicable

Withdrawn

• Conditions: Obese
• Interventions: Procedure: BaroSense ACE Stapler for plication of dilated post-surgical gastric anatomy

• Registration Number: NCT01388673
• Lead Sponsor: BaroSense Inc.

Brief Summary

The BaroSense Articulating Circular Endoscopic (ACE) Stapler is an investigational instrument indicated for endoluminal trans-oral tissue approximation and ligation in the gastrointestinal tract. This study explores the specific application of tissue apposition in dilated post-surgical gastric anatomy such as observed in a dilated Roux-en-Y Gastric Bypass (RYGB) pouch.

The primary objective of this study is to perform an evaluation of the safety of the ACE Stapler for the treatment of dilated post-surgical gastric anatomy.

The secondary objective of this study is to evaluate the preliminary efficacy of the ACE Stapler for the treatment of dilated post-surgical gastric anatomy over a 12 month follow-up period.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2011-07-01
• Study First Submitted QC: 2011-07-06
• Study First Posted: 2011-07-07
• Study Start: 2011-10
• Status Verified: 2012-02
• Last Update Submitted: 2012-02-07
• Last Update Posted: 2012-02-08
• Primary Completion: 2013-02
• Study Completion: 2013-02

Recruitment & Eligibility

• Status: WITHDRAWN
• Sex: All
• Target Recruitment: Not specified

Inclusion Criteria

1. Subject, male or female, is age 18 to 60 years of age.
2. Subject must be able to understand and be willing to sign an informed consent document.
3. Subject must be willing and able to participate in all aspects of the study and agree to comply with all study requirements for the duration of the study. This includes availability of reliable transportation and sufficient time to attend all follow-up visits.
4. Subject must be > 2 years post RYGB surgery.
5. Subject must have documented records indicating an initial achievement of > 60% EWL (based on an ideal weight of 25 BMI) at some point after RYGB surgery.
6. Subject has a BMI at baseline of > 30 and < 50.
7. At time of enrollment, subject must have regained at least 35% of the maximum weight lost following RYGB, and the weight regain must have occurred over a period of not less than 3 months from the point of maximum weight loss.
8. Subject must have a stoma diameter of at least 18 mm.
9. Subject must be fully ambulatory, without chronic reliance on walking aids such as crutches, walkers or a wheelchair.

Exclusion Criteria

1. Subject has a severe eating disorder.
2. Investigator determines that there is another causal factor for the subject's weight regain other than dilated gastric anatomy.
3. Subject has previously undergone an endoscopic or surgical repair of dilated pouch or stoma (including sclerotherapy treatments).
4. Subject had irreversible or life threatening complications following initial RYGB procedure (cardio or respiratory).
5. Subject has an ongoing severe complication from their initial RYGB procedure (recurrent ventral hernia, pain syndrome, etc.).
6. Subject has an intragastric fistula, anastomotic leak, or staple/suture line disruption.
7. Subject has history of/or signs and/or symptoms of gastro-duodenal ulcer disease.
8. Subject has symptomatic congestive heart failure, cardiac arrhythmia or unstable coronary artery disease.
9. Subject has pre-existing respiratory disease such as chronic obstructive pulmonary disease (COPD), pneumonia or cancer.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
ACE Stapler procedure	BaroSense ACE Stapler for plication of dilated post-surgical gastric anatomy	ACE Stapler procedure for the treatment of dilated post-surgical gastric anatomy

Primary Outcome Measures

Name	Time	Method
Proportion of participants with adverse events	Post-procedure through 12 months	The primary safety analysis will assess the occurrence of adverse events through 12 months following procedures. Included in this assessment will be the proportion of subjects with any of the following outcomes between enrollment and completion of the 12 month follow-up evaluation: Adverse Events (AE), Adverse Device Effects (ADE), Serious Adverse Events (SAE) and Unanticipated Adverse Device Effects (UADE).

Secondary Outcome Measures

Name	Time	Method
Percent excess weight loss in participants relative to preop weight	Through 12 months post-procedure	Efficacy measurements will be analyzed relative to the surgery visit. The collected measures will include: * Percent Excess Weight Loss (%EWL) defined as: (preop weight-current weight)/ (preop weight - ideal weight) \*100, where ideal weight is calculated from a BMI of 25 based on the subject's height.; * Total weight lost (kg); * Change in body mass index (BMI); * Change in waist circumference; * Improvement in co-morbid disease(s) including, but not limited to, improvement in vital signs and/or laboratory values