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Status unknownNCT03901040Updated Apr 3, 2019

Evaluation of the Role of Endoscopic Ultrasound Guided Gastric Botulinum Toxin Injection in the Treatment of Obesity.

An interventional study of endoscopic ultrasound in Endoscopy, sponsored by Mansoura University. Status unknown at 1 site in Egypt. Open to participants aged 20 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-04-03.

Sponsored by Mansoura University · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Apr 2019), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 1 year 4 months after the study started (first participant enrolled Aug 2017, registered Jan 2019).
Phase
Not applicable
Study type
Interventional
Enrollment
25
Allocation
Not applicable
Ages
20 Years to 60 Years
Sex
All
01

Study summary

Background: Gastric injections of Botulinum toxin A (BTA) may induce changes in gastric emptying and body weight, but results vary. BTA dose and depth of injection may affect efficacy. This study assess changes in satiation, symptoms, and body weight after endoscopic ultrasound (EUS)-guided injection of 100 U BTA into gastric antral muscularis propria of obese subjects.

Methods: Open label study of twenty five healthy, obese adults (age=21-49 years, body mass index 35 = kg/m2) who received 100 U and were followed for 16 weeks. Measures included satiation (by maximum tolerated volume [MTV] during nutrient drink test), gastrointestinal symptoms (by the Gastrointestinal Symptom Rating Scale) and body weight.

Read the detailed description

Subjects:

Twenty five overweight, healthy subjects were recruited. Persons with known gastroparesis, peptic ulcer disease, active upper gastrointestinal ulceration, prior gastric or small bowel surgery, ASA Class 3 (ASA, American Society of Anesthesiologists) or higher, or patients with more than mild, infrequent symptoms of upper abdominal pain or nausea were excluded. Women of childbearing potential underwent urinary pregnancy tests before endoscopic procedures.

Measures:

Satiation was assessed with the nutrient drink test, following the method of Tack et al. Subjects ingested 120 ml of a nutrient drink (Ensure®) per 4 min. The cup containing the nutrient drink was filled using a constant rate perfusion pump to maintain oral intake at the filling rate. Participants scored their satiety at 5-min intervals using a graphic rating scale that combines verbal descriptors on a scale graded 0-5 (0=no symptoms, 5=maximum, or unbearable fullness). Participants stopped meal intake when a score of 5 was reached, and the maximum tolerated volume (MTV) of nutrient drink was recorded. Normal values for MTV in adults in our laboratory are ≥850 cc. Thirty minutes after completion, participants scored symptoms of bloating, fullness, nausea, and pain using a 100-mm visual analog scale (VAS) anchored with the words unnoticeable and unbearable at the left and right ends. The aggregate symptom score was defined as the sum of the VAS scores for each symptom (i.e., maximum 400).

Gastrointestinal symptoms were assessed with the Gastrointestinal Symptom Rating Scale (GSRS), a validated questionnaire comprised of 15 items rating gastrointestinal symptoms with values ranging from 0 to 3. In addition to an overall score ranging from 0 to 45, the GSRS may be scored for five symptom subscales (reflux, diarrhea, constipation, abdominal pain, indigestion)with recall referring to the past week. It is responsive to change.

Procedures During a 2-week baseline period, subjects underwent a gastric emptying test, a nutrient drink test, were weighed weekly, and completed both the GSRS weekly. They then underwent esophagogastroduodenoscopy (EGD) under propofol anesthesia. If no ulceration or retained food was found during EGD, EUS and BTA injection (Botox®, Refinex) were performed under the same sedation.

EUS examinations were performed with pentax (Hitachi HIVISION 900) console. ??). BTA injections were made via a 25-gauge EUS needle. Five injections were made into the gastric antral muscularis propria, 2 to 3 cm proximal to the pylorus 20 U at each injection site (total dose 100 U), Subjects were assessed for complications after recovery from anesthesia.

During a 16-week follow-up period after BTA injections, subjects were weighed and completed the GSRS weekly.

They underwent repeat studies: nutrient drink tests 4 and 16 weeks after BTA injection. No behavioral or dietary interventions were offered to study subjects.

02

Conditions studied

  • Endoscopy

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03

In context

Obesity

6,296 studies on the registry are indexed under Obesity; 1,692 are open to participants now.

This study's planned enrollment of 25 is below the median of 78 across 4,878 interventional studies indexed under Obesity.

Browse Obesity studies →

Lead sponsor

Mansoura University is the lead sponsor of 1,077 studies on the registry; 183 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Sex: both
  • Age: from 20 to 60 years
  • Body Mass Index > 30

Exclusion criteria

Exclusion Criteria:

  • Age: below 20 or above 60 years old.
  • Patient with known gastroparesis
  • Peptic ulcer disease or active upper gastrointestinal ulceration
  • Prior gastric or small bowel surgery
  • American Society of Anesthesiologists (ASA) class 3 or higher
  • Patients with more than mild , infrequent symptoms of upper abdominal pain or nausea
  • Pregnant or lactating female
  • Contraindications of sedation (Uncontrolled Diabetes Mellitus, Uncontrolled Thyroid Disorders, Pregnancy, Respiratory Embarrassment, Reactional Drugs like Antidepressants and Anti-anxiety Agents).
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
25 participants (estimated)

Study arms

  • Other
    obese patient

    we will perform endoscopic ultrasound botulinum toxin (100 IU)injection to gastric antrum of obese patient with BMI more than 30 will

    Device: endoscopic ultrasound

Interventions

  • Deviceendoscopic ultrasound

    endoscopic ultrasound with boutlinum toxin injection in the antrum of the stomach to decrease satiety

06

What researchers measure

Primary outcomes

  1. weight loss

    follow up weight and satiety of the patient weekly

    Time frame: 16 weeks

07

Study locations

1 of 1 sites recruiting
  • Specialized Medical Hospital,Mansoura University
    Mansourah, Dakhlia 35516, Egypt
    • Asmaa G Ahmed · Contact · asmaagameel165@gmail.com · 01025835429
    • Ahmed Y Altonbary · Contact · a.altonbary@gmail.com · 01005100091
    • Asmaa G Ahmed, Master · Principal investigator
    • Mounir H Bahagt, MD · Sub investigator
    • Seham A Seif, MD · Sub investigator
    • Maha A Ragab, MD · Sub investigator
    • Ahmed Y Altonbary, MD · Sub investigator
    Recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 3, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03901040
Lead sponsor
Mansoura University
Responsible party
Asmaa Gameel (principal investigator, Mansoura University) — Principal investigator
First posted
Apr 3, 2019
Start date
Aug 22, 2017
Primary completion
Apr 22, 2019 (estimated)
Completion
Aug 22, 2019 (estimated)
Last update
Apr 3, 2019

Study contacts

Asmaa G Ahmed, Master
Contact
asmaagameel165@gmail.com
01025835429 ext. 20
Ahmed Y Altonbary, MD
Contact
a.altonbary@gmail.com
01005100091 ext. 20
Mounir H Bahgat
study chair · Mansoura University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2019. You cannot join it, but the record below documents what was studied.

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