Investigating weight loss after mini gastric bypass with a special ring

The Banded Mini Gastric Bypass Trial: A Prospective Randomized Controlled Trial

Not applicable Interventional Ziekenhuisgroep Twente · NCT05472922

This study is testing if a special ring used during mini gastric bypass surgery can help people lose a lot of weight and improve health issues related to obesity over five years.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment210 (estimated)
Ages18 Years and up
SexAll
SponsorZiekenhuisgroep Twente Academic / other
Locations1 site (Almelo)
Trial IDNCT05472922 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effectiveness of a MiniMizer Ring implanted during a mini gastric bypass (MGB-OAGB) surgery in promoting significant weight loss over a five-year period. It is a prospective, non-blinded, single-center randomized controlled trial involving patients who meet specific criteria for bariatric surgery. The primary endpoint is the percentage of total body weight loss (%TBWL) five years post-surgery, with secondary objectives including the percentage of excess weight loss (%EWL) and the reduction of obesity-related comorbidities such as diabetes and hypertension.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 and older with a Body Mass Index (BMI) of 35 or higher and related comorbidities, or a BMI exceeding 40.

Not a fit: Patients who have previously undergone bariatric surgery or have certain medical conditions, such as severe kidney or liver disease, may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to improved long-term weight loss and better management of obesity-related health conditions for patients.

How similar studies have performed: Other studies have shown promising results with similar bariatric surgical approaches, but the specific combination of MGB-OAGB with the MiniMizer Ring is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients meet IFSO criteria for Bariatric Surgery
* Age 18 and above

Exclusion Criteria:

* Previous Bariatric surgery
* Inability to read and understand written information
* Any genetic condition that can hamper the acceptance of medical advice
* chronic bowel disease
* Severe kidney of liver disease
* Pregnancy at the start or during the research period
* Patients with pre-existing therapy refractory GERD
* Patients with an allergy to silicone

Where this trial is running

Almelo

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Bariatric SurgeryWeight LossComorbidities and Coexisting ConditionsMGB-OAGBMiniMizer Ringbanded bypass
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.