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Your journey
1What's a trial
4Get in touch
More info
You can access this
clinical trial
if you have
Condition Measuring Alkaline Tide and Filling Symptoms' Questionnaire After Abrupt or Gradual Step Down Cessation of PPI
and you are
between 18 and 80
years old
This is an early phase trial to determine
the dosage and safety of the new treatment.
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The purpose

Gastro esophageal reflux disease and ulcer related or non-ulcer dyspepsia, attacks 20% of the Western population. These millions of patients are treated continuously with PPI for different periods, many for many years. Recently, rebound acid hypersecretion was recognized as a major clinical event after cessation of PPI therapy. Sustained hypergastrinemia due to daily PPI therapy causes increased acid-secretory capacity that appears when the drug is stopped. The transient increase in blood and urinary pH following gastric secretion has been termed the alkaline tide phenomenon. Carbonic acid, formed in the presence of the enzyme carbonic anhydrase, neutralizes intracellular hydroxyl ions produced as a result of luminal acid secretion. The bicarbonate generated is removed from the cell via the baso-lateral chloride bicarbonate exchanger. The investigators have shown in several studies that this phenomenon parallels acid secretion. Thus, stimulation of acid secretion with test meal increased base excess maximally after 45 minutes and these changes parallel peak acid output measured in gastric aspirate. The investigators hypothesize that gradual step down cessation of PPI will prevent this clinical relevant event. By measuring alkaline tide after PPI cessation the investigators may prove this hypothesis.

Provided treatments

  • Drug: Stop PPI gradually
  • Drug: Stop PPI gradually

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT01315444. The sponsor of the trial is Rabin Medical Center and it is looking for 0 volunteers for the current phase.
Official trial title:
Gradual Cessation of Proton Pump Inhibitor (PPI) Treatment May Prevent Rebound Acid Secretion in Dyspeptic and Reflux Patients, Measured by the Alkaline Tide Method.