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Evaluation of the Safety and Effectiveness of Stomaphyx for Transoral Incisionless Reduction of the Enlarged Gastric Pouch and Stoma

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01025076
First Posted: December 3, 2009
Last Update Posted: March 10, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Collaborator:
Alberta Health Services
Information provided by (Responsible Party):
Shahzeer Karmali, University of Alberta
  Purpose

Executive Summary

Aims and Hypotheses of the Study:

The aim of the study will be to evaluate the safety, effectiveness and early outcome of the StomaphyX procedure for reducing the enlarged gastric pouch and stoma in post-bariatric patients. The study will test a hypothesis that the StomaphyX procedure will be effective in promoting the loss of regained weight, reducing the risk for comorbidities and improving patients' quality of life.

Type of Study: Prospective non-randomized Study Duration: 12 months Number of Patients: 20

Inclusion Criteria:

18-70 years of age, BMI ≥ 35, ≥ 2 years after primary Roux-en-Y gastric bypass with evidence of enlarged gastric pouch volume or enlarged stoma diameter of ≥ 20 mm via endoscopy or fluoroscopy. Pts also demonstrate a weight regain of 15% of excess body weight loss.

Exclusion Criteria:

Esophageal stricture, or any anatomic conditions that preclude passage of transoral endoluminal instruments, has another causal factor for weight regain other than stoma or pouch dilatation, portal hypertension, coagulation disorders or chronic use of anticoagulants, any active medical condition that would preclude the patient from completing the study or would result in an unreasonable risk to the patient.

Intervention Treatment: Creation of multiple full-thickness plications within the gastric pouch using the StomaphyX device (EndoGastric Solutions, Inc., Redmond, WA, USA)

Evaluation Criteria Primary Outcome: Change in body weight at 6 and 12 months Secondary Outcome: Gastric pouch volume assessment, stoma diameter determination, quality of life scores, waist circumference, co-morbidity resolution Effectiveness and Safety Assessment Clinical: Weight, height, waist circumference quality of life questionnaires (Impact of Weight QOL-Lite, Eating and Weight Patterns, Three-factor Eating, Emotional Eating Scale, GI QoL, GSRS and/or PGWB) Anatomical: Upper GI endoscopy, computed tomography or barium radiography Biochemical: Blood and urine tests (glucose, cholesterol, triglyceride, HDL, LDL, uric acid) Safety: Adverse events, complications, co-morbidities, hospital stay


Condition Intervention Phase
Morbid Obesity Device: StomaphyX Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase II Study of Evaluation of the Safety and Effectiveness of Stomaphyx for Transoral Incisionless Reduction of the Enlarged Gastric Pouch and Stoma

Further study details as provided by Shahzeer Karmali, University of Alberta:

Primary Outcome Measures:
  • Primary Outcome: Change in Body Weight [ Time Frame: At 6 months comparing to baseline weight ]
    Body weight changes at 6 months after StomaphyX procedure comparing to baseline weight.


Enrollment: 14
Study Start Date: February 2009
Study Completion Date: May 2012
Primary Completion Date: April 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: StomaphyX Group
  • Primary Roux-en-Y gastric bypass with evidence of enlarged gastric pouch volume or enlarged stoma diameter of ≥ 20 mm via endoscopy or fluoroscopy.
  • Patients also demonstrate a weight regain of 15% of excess body weight loss.
Device: StomaphyX
StomaphyX with SerosaFuse fasteners (EndoGastric Solutions, Inc., Redmond, WA, USA) is a transoral incisionless fastening device that allows for GI tissue approximation and creation of full-thickness (serosa-to-serosa) plications.

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Age 18-70 years
  • BMI 35 or greater with one or more comorbidities
  • At least 2 years post-Roux-en-Y gastric bypass surgery
  • At enrollment, has regained at least 15% of excess body weight loss
  • Enlarged Stoma Diameter
  • Enlarged gastric pouch
  • Completed successful nutritional screening and compliant with nutritional programs
  • Completed successful cardiopulmonary evaluation
  • Patient willing to cooperate with follow-up assessment tests
  • Signed informed consent

Exclusion Criteria:

  • Esophageal stricture or any anatomic conditions that preclude passage of transoral endoluminal instruments
  • Has another causal factor for weight regain other than stoma or pouch dilatation such as non compliant with nutritional and exercise programs
  • Portal hypertension
  • Coagulation disorders or chronic use of anticoagulants
  • Any active medical condition that would preclude the patient from completing the study or would result in an unreasonable risk to the patient
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01025076


Locations
Canada, Alberta
CAMIS, Royal Alexandra Hospital
Edmonton, Alberta, Canada, T5H 3V9
Sponsors and Collaborators
University of Alberta
Alberta Health Services
  More Information

Publications:

Responsible Party: Shahzeer Karmali, BSc, MD, FRCSC, University of Alberta
ClinicalTrials.gov Identifier: NCT01025076     History of Changes
Other Study ID Numbers: Pro00008913
First Submitted: December 2, 2009
First Posted: December 3, 2009
Results First Submitted: December 6, 2016
Results First Posted: January 31, 2017
Last Update Posted: March 10, 2017
Last Verified: January 2017

Keywords provided by Shahzeer Karmali, University of Alberta:
Enlarged gastric pouch and stoma
Post bariatric surgery

Additional relevant MeSH terms:
Obesity, Morbid
Obesity
Overnutrition
Nutrition Disorders
Overweight
Body Weight
Signs and Symptoms