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Condition Guide

New Treatments & Clinical Trials for Gastroparesis

Last updated May 2026Data from ClinicalTrials.gov80 active trials
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Gastroparesis is a condition in which the stomach empties abnormally slowly despite the absence of a physical obstruction, causing nausea, vomiting, bloating, and difficulty maintaining nutrition. It occurs most commonly in people with diabetes but also affects those following viral illness or surgical vagal injury, and many cases have no identifiable cause. It can be severely debilitating and difficult to treat.

What's actually going on in research

Current treatments — dietary modification, prokinetic agents such as metoclopramide, and gastric electrical stimulation devices — provide incomplete relief for many patients. Motilin receptor agonists and ghrelin receptor agonists, including relamorelin, have shown promise in trials for reducing vomiting frequency. Newer research is exploring the use of GLP-1 receptor agonist cessation in drug-induced gastroparesis, prucalopride as a prokinetic, and gastric peroral endoscopic myotomy (G-POEM) as a minimally invasive procedural option.

Ghrelin receptor agonists

Relamorelin and other ghrelin receptor agonists accelerate gastric emptying and significantly reduce vomiting in trials, representing a more targeted prokinetic approach than existing drugs.

G-POEM procedure

Gastric peroral endoscopic myotomy — an incisionless endoscopic procedure that cuts the pyloric muscle — is being evaluated in trials as a durable treatment for refractory gastroparesis.

Centrally acting therapies

Tricyclic antidepressants and neuromodulating agents targeting the gut-brain axis are being studied for symptom relief independent of gastric emptying rate, acknowledging the central sensitization component of gastroparesis.

What to know before you search

Eligibility often requires confirmed delayed gastric emptying on scintigraphy, documented diabetes or other etiology, and failure of dietary measures.

What types of trials are currently open

  • Prokinetic drug trialsTesting ghrelin agonists, motilin agonists, and serotonin receptor agents to accelerate gastric emptying.
  • Endoscopic procedure trialsEvaluating G-POEM and pyloric botulinum toxin injection for refractory gastroparesis.
  • Neuromodulation trialsStudying gastric electrical stimulation and transcutaneous nerve stimulation for symptom control.
  • Gut-brain axis trialsTesting centrally acting agents for nausea and vomiting independent of gastric motility.
  • Diabetic gastroparesis studiesAssessing glycemic control strategies and targeted prokinetics in diabetes-associated gastroparesis.

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