A Prospective, Randomized Multicenter Study to Evaluate the Safety and Efficacy of the ReShape Duo™ Intragastric Balloon System in Obese Subjects

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. Identifier: NCT01673698
Recruitment Status : Completed
First Posted : August 28, 2012
Results First Posted : December 7, 2015
Last Update Posted : December 7, 2015
Information provided by (Responsible Party):
ReShape Lifesciences

August 15, 2012
August 28, 2012
August 25, 2015
December 7, 2015
December 7, 2015
August 2012
April 2014   (Final data collection date for primary outcome measure)
  • Comparison of Treatment % Excess Weight Loss (EWL) With Control %EWL at Week 24 [ Time Frame: Week 24 ]
    An inferential test of whether the difference in the mean %EWL between the Treatment and Control groups at 24 weeks was significantly greater than a superiority margin 7.5%.
  • Treatment Group Responder Rate Dichotomized at 25% EWL [ Time Frame: 24 weeks ]
    An inferential test of whether the percentage of participants in the Treatment Group with a weight loss of >25% EWL at 24 weeks was significantly greater than 35%.
Difference in the mean percent excess weight loss (%EWL) between the Treatment and Control Groups
Complete list of historical versions of study NCT01673698 on Archive Site
Weight Loss Maintenance Six Months Following Device Removal [ Time Frame: 48 weeks ]
Assess whether significantly greater than 50% of treatment subjects maintained 40% of their excess weight loss at 48 weeks.
Proportion of weight loss maintained following device removal for each Treatment Group subject (i.e. calculated as the ratio of % EWL maintained following device removal to the % EWL achieved during device implant)
Not Provided
Proportion of Treatment group subjects who achieve ≥ 25% EWL
A Prospective, Randomized Multicenter Study to Evaluate the Safety and Efficacy of the ReShape Duo™ Intragastric Balloon System in Obese Subjects
A Prospective, Randomized Multicenter Study to Evaluate the Safety and Efficacy of the ReShape Duo™ Intragastric Balloon System in Obese Subjects
The REDUCE Pivotal Trial is a pivotal clinical study designed to develop valid scientific evidence regarding the safety and effectiveness of the ReShape Duo® as an adjunct to diet and exercise in the treatment of obese subjects with one or more obesity-related comorbid conditions.
Not Provided
Not Applicable
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
  • Device: ReShape Duo balloon
  • Other: Diet counseling
  • Other: Exercise counseling
  • Active Comparator: ReShape Duo Balloon
    ReShape Duo Balloon
    • Device: ReShape Duo balloon
    • Other: Diet counseling
    • Other: Exercise counseling
  • Sham Comparator: Sham Comparator
    Sham Comparator
    • Other: Diet counseling
    • Other: Exercise counseling
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
September 2014
April 2014   (Final data collection date for primary outcome measure)

Inclusion criteria:

  • Patients 21 to 60 years of age
  • Body Mass Index (BMI) ≥ 30 kg/m^2 and ≤ 40 kg/m^2
  • At least 5 years of obesity (with BMI ≥ 30)
  • Stable weight, defined as a subject who has not gained or lost ≥ 5% of body weight in the 3 months preceding the screening assessment
  • Failure to lose weight, within the 36 months preceding the screening date, after participation in either of the following:

    1. A medically or commercially supervised weight loss program involving regular counseling regarding both diet and exercise.
    2. Use of a United States Food and Drug Administration (FDA)-approved diet drug
  • The presence of one or more obesity-related comorbid conditions
  • Willing and able to provide Informed Consent
  • Willing and able to comply with study procedures and visit schedules as specified by the protocol
  • If female, the patient must

    1. be postmenopausal for at least 1 year OR
    2. be surgically sterile, OR
    3. if of child bearing potential, must be practicing birth control, be willing to avoid pregnancy for the year of study participation, have a negative serum pregnancy test at screening, and a negative urine pregnancy test at baseline
  • Residing within a reasonable distance from the Investigator's treating office and able and willing to travel to the Investigator's office to complete all routine follow-up visits.

Exclusion criteria:

  • History of and/or ongoing clinically significant conditions or disorders of the gastrointestinal (GI) tract
  • Clinically significant and uncontrolled/unstable hepatic, reproductive, gastrointestinal, renal, hematologic, pulmonary, neurologic, psychiatric, respiratory, endocrine, or cardiovascular system diseases
  • Significant acute and/or chronic infections of any kind.
  • Severe coagulopathy, hepatic insufficiency or cirrhosis
  • Uncontrolled or severe asthma, or any asthma requiring or likely to require inhaled steroid therapy during the anticipated duration of trial participation
  • Severe obstructive sleep apnea
  • Incompletely controlled hypothyroidism or hyperthyroidism
  • Severe systemic disease [consistent with an ASA (American Society of Anesthesia) Physical Status Classification Score of 3 or greater]
  • Eating disorders, especially binge eating
  • Inability to walk 200 yards without assistance
  • Known allergies to any of the device materials or accessories, i.e. silicone, methylene blue, corn starch
  • Active drug or alcohol addiction within 12 months of enrollment
  • Insulin-dependent diabetes (either Type 1 or Type 2) or a significant likelihood of requiring insulin treatment in the following 12 months
  • Depressive disorder with total Beck Depression Inventory (BDI) score > 16 points, and/or BDI affective subscale score > 7 points at screening
  • Ongoing treatment, or anticipated need for such treatment, with anticoagulants, known gastric irritants such as aspirin (ASA) or non-steroidal anti-inflammatory drugs (NSAIDs) or agents that can promote gastrointestinal bleeding, within 1 month prior to enrollment, or unwillingness to forego these medications during the study period
  • Participation within 60 days of screening date in previous or ongoing clinical trial or current usage of an investigational drug or device
  • Any use of an intragastric device prior to this study.
  • Genetically caused obesity, such as Prader-Willi syndrome
  • Any prior bariatric surgery or likely to undergo bariatric surgery during study follow-up period
  • Concomitant use of, or unwillingness to avoid any use of, weight loss medications, weight loss supplements, weight loss herbal preparations and/or participation in any non-study-related organized weight loss program (commercial or medical) at any time during the study, including online or smart phone applications to track or modify food intake, exercise regimens or weight
  • Chronic opiate use (> 3 months continuous use) or likely need for opiate use during study participation
  • Contraindication or allergy to, or unwillingness to use, proton pump inhibitor medication throughout study follow-up duration-Pregnancy, breast feeding, or intention of becoming pregnant during the study
  • Any screening laboratory values outside of the normal range deemed clinically significant by the Investigator
  • Anemia defined as either:

    1. Hemoglobin (Hgb) value for females of < 11.0 g/dl, for males < 12.0 g/dl
    2. Abnormal red cell indices and iron deficiency
  • Smoking cessation within 3 months of study entry or plans to quit smoking during the study
  • Major surgery, open biopsy or significant traumatic injury within 3 months prior to enrollment.
  • History of significant adverse experience with sedation or anesthesia
  • Serious or uncontrolled psychiatric illness or disorder that could compromise patient understanding of or compliance with study procedures
  • Any condition that, in the opinion of the Investigator, would compromise the well-being of the patient or the study or prevent the patient from meeting or performing study requirements, including:

    1. Inability or unwillingness to sign the patient informed consent document.
    2. Inability to participate in all necessary study activities due to physical or mental limitations.
    3. Inability or unwillingness to return for all required follow-up visits.
  • Employees/family members of ReShape Medical® or any of its affiliates or contractors
  • Employees/family members of the Investigator, sub-Investigators, or their medical office or practice, or surgical, bariatric or hospital organizations at which study procedures may be performed
  • An immediate family member (by marriage or blood relationship) of another subject already enrolled in the REDUCE Pivotal Trial

Endoscopic exclusion criteria:

  • Peptic ulcerations
  • Clinically significant hiatal hernia (> 3 cm)
  • Patulous pyloric channel
  • Erosive esophagitis
  • Varices
  • Angiectasias
  • Barrett's esophagus
  • Esophageal stricture
  • Gastric mass
  • Any other subject characteristic that would prevent the successful insertion of a ReShape Duo™ or that in the opinion of the Investigator preclude safe use of the ReShape Duo™
Sexes Eligible for Study: All
21 Years to 60 Years   (Adult)
Contact information is only displayed when the study is recruiting subjects
United States
The REDUCE Pivotal Trial
Not Provided
Not Provided
ReShape Lifesciences
ReShape Lifesciences
Not Provided
Study Director: John Lehmann, MD, MPH Lehmann Consulting
Principal Investigator: Jaime Ponce, MD Hamilton Medical Center
ReShape Lifesciences
November 2015

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP