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Temporary Gastric Electrical Stimulation for Gastroparesis

U

University of Calgary

Status

Completed

Conditions

Gastroparesis

Treatments

Device: Gastric mucosal stimulation

Study type

Interventional

Funder types

Other

Identifiers

Details and patient eligibility

About

This is a prospective study of temporary gastric mucosal electrical stimulation (tGES) in 30 patients with gastroparesis (GP). After a 7 day baseline assessment of symptoms, subjects will have an endoscopically-placed tGES lead implanted into the mucosa of the antrum. This lead is connected to a thin wire that runs up the esophagus and out the nostril, similar to a nasojejunal feeding tube, although much thinner. It is then attached to a programmable battery pack which provides the desired level of stimulation.

Patients will then be randomized to 7 days OFF or 7 days ON stimulation in a double-blind fashion. After 7 days, subjects will crossover to the other study arm (ie ON patients will be switched off; OFF patients will be switched on). Symptoms and QoL measures will be assessed at baseline, ON, and OFF periods. Serum ghrelin and other hormones, as well as EGG will be assayed after 6 days in each arm.

Enrollment

30 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age of 18 or older
  • Existing clinical diagnosis of gastroparesis for at least one year as judged by the study gastroenterologist based on past medical history, clinical symptoms
  • Sufficiently symptomatic at time of proposed study (Minimum total baseline GCSI score of 1.5 or higher)
  • Delayed gastric emptying (>10% retention at 4 hours) on standard scintigraphic emptying study with patients off narcotics for at least 48 hours. Normal upper endoscopy (with the exception of small bezoars) since the onset of symptoms
  • Medically fit to undergo endoscopy
  • Able and willing to remain in Calgary for the duration of the study (baseline period excepted)
  • Able to provide written informed consent

Exclusion criteria

  • Clinical evidence (including physical exam and/or EKG) of significant cardiovascular, respiratory, renal, hepatic, gastrointestinal, hematological, neurological, psychiatric or other disease that may interfere with the objectives of the study and/or pose safety concerns
  • Current use of anticoagulants, ASA, NSAIDS, clopidogrel, etc. which cannot safely be stopped for up to 5 days prior to the procedure in the opinion of the investigators
  • Bleeding diathesis
  • Severe immunocompromise
  • Physical, mental, or compliance issues which in the opinion of the investigators may prevent the patient from completing the study
  • Pregnant or breastfeeding females

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Double Blind

30 participants in 2 patient groups

Stimulation ON
Active Comparator group
Treatment:
Device: Gastric mucosal stimulation
Stimulation OFF
Sham Comparator group
Treatment:
Device: Gastric mucosal stimulation

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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