Ensayos clínicos

Inclusion Criteria:

This study will aim to recruit adolescents age 14-17 years with the BMI criteria and the comorbidities summarized in Table 1.

• Table 1: Primary inclusion criteria for bariatric intervention in adolescents:
• BMI>35 kg/m2 with one of the following severe comorbidities, both for at least 2 years:
  • Type 2 diabetes mellitus;
  • Moderate-to-severe sleep apnea;
  • Pseudotumor cerebri;
  • NASH based on fatty infiltration of the liver with transaminitis that cannot be explained by other liver disease.
• Or
• BMI>40 kg/m2 with two or more of the following mild comorbidities, all for at least 2 years:
  • Hypertension;
  • Dyslipidemia;
  • Mild obstructive sleep apnea;
  • Chronic venous insufficiency;
  • Panniculitis;
  • Urinary incontinence;
  • NASH;
  • Gastroesophageal reflux disease;
  • Arthropathies related to weight.

In addition, all of the following inclusion criteria must be met.  The subject must have:

• attained approximately 95% of adult stature, as demonstrated by Tanner Stage IV or more and growth charts demonstrating the taper/plateau of height as a marker for achieving 95% of the subject’s adult stature.Height will be measured by trained staff to the nearest 0.1 cm using a stadiometer attached to a wall and documented in the subject’s EMR.In the absence of previous growth charts, skeletal maturity will be documented by a bone age of at least 13 years in girls and 15 years in boys; and
• failed to attain a healthy weight with at least one experience with medically supervised lifestyle changes, including physical activity and dietary interventions, which will be clearly documented in the subject’s medical record; and
• demonstrated commitment to psychological evaluation perioperatively, in which the pediatric psychologist with expertise in childhood obesity must confirm that the subject has the maturity and stable psychosocial environment necessary for this research study and has validated the CES-D and SCAS surveys completed by the subject; and
• agreed to avoid pregnancy for 1 year after IGB placement through abstinence or approved contraception as noted in Appendix A (female subjects only); and
• agreed to adhere to nutritional guidelines after IGB placement, as provided by weight management clinic dietitian; and
• decisional capacity and desire to provide informed assent in conjunction with parent/guardian consent, and willingness to comply with all study requirements; and
• hypertension stage I: systolic blood pressure and/or diastolic blood pressure ≥ 95th percentile, OR high normal blood pressure between the 90th and 95th percentile.
• Note: Patients with hypothyroidism that is treated and are persist to have morbid obesity despite adequate thyroid replacement therapy can be recruited.

Exclusion Criteria

Subjects will be excluded if:

• they are pregnant or breastfeeding; or
• there is any other disease, physical examination finding, or clinical laboratory result that provides a reasonable suspicion of a disease or condition that contraindicates the use of the investigational device or that may affect the interpretation of the results or render the subject at high risk for treatment complications; or
• there is alcohol, tobacco, or substance use by the subject; or
• in the opinion of the PI and/or co-investigators, subject or parent/guardian may be non-compliant with study schedules or procedures; or
• there are any endoscopic contraindications, including large hiatal hernia (≥ 2 cm), esophagitis of any degree, erosive gastritis, or ulceration of the stomach or duodenum; or
• H. pylori is detected via a fecal antigen study prior to initial endoscopic assessment (sensitivity > 96.8%); once treated, a repeat fecal antigen must be performed to document eradication prior to the first endoscopic approach for balloon placement; or
• they have hypertension stage II > 99th percentile, unless they had a complete workup to exclude secondary etiologies other than being overweight; or
• Gastroesophageal reflux disease (GERD) subjects are on more than one medication or have a history of erosive esophagitis due to GERD, or
• they have dyslipidemia, if part of hereditary metabolic syndrome or genetic disorder; or
• they have any gastrointestinal disease that can result in stomach ulcerations, such as Crohn’s disease, celiac disease, eosinophilic esophagitis, acute or chronic pancreatitis or gastrinoma; or
• they have any endocrine disorders that affect metabolic status of the subjects, such as untreated hypo/hyperthyroidism, type 1 diabetes, Cushing’s disease, or adrenal insufficiency, as documented in the EMR through an evaluation by the pediatric endocrinologist who will order additional testing if needed; or
• they have prior gastrointestinal surgery with sequelae; i.e., obstruction, and/or adhesive peritonitis or known abdominal adhesions and/or history of abdominal and/or pelvic surgery which may cause adhesions (except one of the following: caesarean section, diagnostic laparoscopy, laparoscopic appendectomy, laparoscopic cholecystectomy performed 12 or more months prior to balloon implantation); or
• they have prior open or laparoscopic bariatric surgery; or
• they have prior surgery of any kind on the esophagus, stomach or any type of hiatal hernia surgery; or
• they have any inflammatory disease of the gastrointestinal tract including esophagitis, Barrett’s esophagus, cancer or specific inflammation such as Crohn’s disease; or
• they have potential upper gastrointestinal bleeding conditions such as esophageal or gastric varices, congenital or acquired intestinal telangiectasis, or other congenital anomalies of the gastrointestinal tract such as atresias or stenoses, or,
• they have a gastric mass; or
• they have acid reflux symptoms to any degree that require more than one medication for symptom control; or
• they have a structural abnormality in the esophagus or pharynx such as a stricture or diverticulum that could impede passage of the balloon alongside the endoscope; or
• they have achalasia or any other severe esophageal motility disorder that may pose a safety risk during the removal of the device; or
• they have severe coagulopathy; or
• they have poorly controlled diabetes, defined as having a HgA1c > 10; or
• they have serious health conditions unrelated to their weight that would increase the risk of endoscopy; or
• they have chronic abdominal pain; or
• they have motility disorders of the GI tract such as gross esophageal motility disorders, gastroparesis, or intractable constipation; or
• they have hepatic insufficiency or cirrhosis; or
• they have serious or uncontrolled psychiatric illness or disorder that could compromise their understanding of, or compliance with, follow-up visits and removal of the device; or
• they are receiving daily prescribed treatment with aspirin, anti-inflammatory agents, anticoagulants or other gastric irritants; or
• they are taking medications on specified hourly intervals that may be affected by changes to gastric emptying, such as anti-seizure or anti-arrhythmic medications; or
• they are taking corticosteroids, immunosuppressants, or narcotics; or
• they are unable or unwilling to take prescribed proton pump inhibitor medication; or
• they are known to have, or suspected to have, an allergic reaction to materials contained in the system; or
• they have ever developed a serotonin syndrome and are currently taking any drug known to affect the levels of serotonin in the body (e.g. selective serotonin reuptake inhibitors, serotonin-norepinephrine reuptake inhibitors, monoamine oxidase inhibitors); or
• they have a medically identifiable cause of obesity (specific diagnosed genetic or hormonal case for obesity such as hypothyroidism or Prader Willi syndrome); or
• they have known history of endocrine disorders affecting weight; or
• they use any medications, except for Metformin, known to affect body weight and carbohydrate or lipid metabolism; or
• they used an intragastric device prior to this study; or
• they participated in any clinical study which could affect weight loss within the past 6 months; or
• they have symptomatic congestive heart failure or cardiac arrhythmia; or
• they have a diagnosis of an autoimmune connective tissue disorder (e.g., lupus, erythematous, scleroderma), or immunocompromised; or
• they are on insulin for type 2 diabetes and not proficient in self-monitoring capillary blood glucose testing.