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Primary Care dySpEpsia rikkuNshiTo

NCT06482671 · Status: RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2025-07-23

No results posted yet for this study

Summary

Dyspepsia refers to chronic or recurrent upper gastrointestinal (GI) symptoms originating from the gastroduodenal region with a significant impact on patients' lives. Functional dyspepsia comprises the diagnostic categories of epigastric pain syndrome (EPS) with epigastric pain or burning and postprandial distress syndrome (PDS) with meal-related fullness or early satiation, which are unexplained after routine investigation including upper GI endoscopy 2. Despite the common occurrence of FD in up to 15% of the general population, the underlying pathophysiology remains unclear and no treatments of proven efficacy are available in Europe for this condition.

Our group has demonstrated increased duodenal mucosal permeability and low-grade inflammation in FD patients, correlating with meal-related symptoms. The causes of the barrier defect and immune activation are unknown but candidates include psychological stress, luminal food components, (bile) acid and microbiota. The symptoms most closely associated with increased eosinophil counts in the duodenum are early satiation and postprandial fullness, which are typical PDS symptoms, and which are also associated with impaired gastric accommodation to meal ingestion and delayed gastric emptying.

Previously the efficacy of the Kampo medicine Rikkunshito (TJ-43) has been shown in FD. The exact mode of action remains to be determined. Previous studies have provided mechanistic evidence that rikkunshito is able to improve gastric accommodation, improve food intake and enhance circulating levels of the orexigenic gut peptide ghrelin.

The aim of this study is to evaluate the efficacy of Rikkunshito in comparison to placebo in PDS patients recruited from primary care in Belgium, and to evaluate whether this is associated with changes in duodenal mucosal low-grade inflammation.

Conditions

  • Dyspepsia and Other Specified Disorders of Function of Stomach
  • Postprandial Distress Syndrome

Interventions

DRUG

Rikkunshi-to

Kampo medicine (Herbal). ikkunshito is composed of the following eight herbal medicines: extracts of Atractylodes lancea Rhizome, Ginseng, Pinellia tuber, Poria sclerotium, Jujube, Citrus unshiu Peel, Glycyrrhiza, and Ginger. Among these, the extracts of the Atractylodes lancea Rhizome, Ginseng, Poria sclerotium, Pinellia tuber, Citrus unshiu Peel, and Glycyrrhiza

OTHER

Placebo

inactive drug, The matching placebo contains Corn Starch (vehicle), Lactose Hydrate (vehicle), Dextrin (vehicle), Magnesium Stearate (lubricant), FD\&C Blue No.1 Aluminum Lake (coloring agent), FD\&C Yellow No.5 Aluminum Lake (coloring agent), and Red Ferric Oxide (coloring agent).

Sponsors & Collaborators

  • Universitaire Ziekenhuizen KU Leuven

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-10-01
Primary Completion
2026-10-01
Completion
2026-10-01

Countries

  • Belgium

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06482671 on ClinicalTrials.gov