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Clinical Efficacy and Safety of Jingfang Granules in Treating Diarrhea-Predominant Irritable Bowel Syndrome With Cold-Dampness Disturbing Spleen Syndrome

This prospective, open-label, randomized controlled clinical trial aims to evaluate the clinical efficacy and safety of Jingfang Granules in the treatment of diarrhea-predominant irritable bowel syndrome (IBS-D) with cold-dampness encumbering the spleen syndrome, and to explore its potential mechanisms of action. A total of 106 patients with IBS-D of cold-dampness encumbering the spleen syndrome are planned to be enrolled and randomly assigned to the experimental group and the control group, with 53 patients in each group. The treatment will last for 4 weeks, followed by a 12-week follow-up period. The primary outcome measure is the IBS Severity Scoring System (IBS-SSS). Secondary outcomes include the Traditional Chinese Medicine (TCM) syndrome score, the Bristol Stool Form Scale, patient-reported outcome (PRO) scales, the IBS Quality of Life (IBS-QOL) questionnaire, recurrence rate, and others. Exploratory measures, such as immune-inflammatory cytokines and biomarkers related to intestinal mucosal barrier function, will also be observed.

Studienübersicht

Studientyp

Interventionell

Einschreibung (Geschätzt)

106

Phase

  • Phase 3

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

    • Jiangsu
      • Nanjing, Jiangsu, China, 210006
        • Nanjing First Hospitai
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  1. Meet the Western medicine diagnostic criteria for diarrhea-predominant irritable bowel syndrome (IBS-D) (IBS symptoms lasting for at least 6 months, and meeting the Rome IV criteria in the past 3 months) and the traditional Chinese medicine diagnostic criteria for cold-dampness disturbing spleen syndrome;
  2. Aged between 18 and 65 years, with no gender restriction;
  3. Baseline IBS-SSS score ≥ 75;
  4. No use of any medication for irritable bowel syndrome for at least 1 week before entering treatment;
  5. Subjects are informed and voluntarily sign the informed consent form.

Exclusion Criteria:

  1. Patients with severe cardiovascular, respiratory, liver, kidney, or other major organ diseases, diabetes, tumors, hematopoietic system disorders, nervous system diseases, or psychiatric disorders;
  2. Patients with other organic digestive system diseases (e.g., peptic ulcer) or systemic diseases affecting gastrointestinal motility (e.g., hyperthyroidism, diabetes mellitus);
  3. Patients currently using or requiring continuous use of medications that may affect gastrointestinal function (e.g., antidiarrheals, antidepressants, anxiolytics, intestinal microbiota regulators, antibiotics, etc.);
  4. Patients who have taken antibiotics, steroids or other hormones, herbal preparations (including oral and intravenous), microecological preparations, or probiotics (such as yogurt) within the past 1 week;
  5. Patients who have previously undergone abdominal or anorectal surgery;
  6. Pregnant or breastfeeding women;
  7. Patients with a history of allergy to relevant drugs or severe food allergy;
  8. Patients who have participated in or are currently participating in other interventional clinical research studies within the past 3 months;
  9. Patients who refuse to enroll in the observation or have other unstable factors, such as failure to take medication as prescribed, or taking other medications that affect the evaluation of efficacy, leading to inability to determine treatment effects, or incomplete data.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: Treatment with Trimebutine Maleate Tablets
Control group: Oral administration of Trimebutine Maleate Tablets, 100 mg per tablet, one tablet each time, three times daily, for 4 weeks.
Oral administration of Trimebutine Maleate Tablets, 100 mg per tablet, one tablet each time, three times daily, for 4 weeks.
Andere Namen:
  • Trimebutine Tablets
Experimental: Treatment with Jingfang Granules
Experimental group: Oral administration of Jingfang Granules, 15 g per sachet, one sachet each time, three times daily, for 4 weeks.
Oral administration of Jingfang Granules, 15 g per sachet, one sachet each time, three times daily, for 4 weeks.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Irritable Bowel Syndrome Severity Scoring System scale
Zeitfenster: before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment
This scale is an internationally recognized assessment tool for IBS symptom severity, with a total score ranging from 0 to 500. Lower scores indicate milder symptoms.
before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Biomarker
Zeitfenster: before treatment, after 4 weeks of treatment
Measure the levels of biomarkers such as IL-1β, IFN-γ, IL-6, TNF-α, diamine oxidase, D-lactic acid, and endotoxin to explore the mechanism of action.
before treatment, after 4 weeks of treatment
Evaluation of the efficacy of Chinese medicine evidence
Zeitfenster: before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment
A quantitative scale formulated based on the Guiding Principles for Clinical Research of New Chinese Medicines and the diagnostic criteria for cold-dampness encumbering the spleen pattern, with graded scoring for primary and secondary symptoms. Lower scores indicate milder syndromes.
before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment
Patient-Reported Outcome scale
Zeitfenster: before treatment, after 4 weeks of treatment
Assesses patients' self-perceived severity of core symptoms such as abdominal discomfort and bloating.
before treatment, after 4 weeks of treatment
Irritable Bowel Syndrome Quality of Life scale
Zeitfenster: before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment
Assesses the quality of life of patients with IBS.
before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment
Number of Participants with Treatment-Emergent Adverse Events (TEAEs)
Zeitfenster: Baseline (before treatment) to Week 4
Treatment-emergent adverse events (TEAEs) will be assessed throughout the study period based on spontaneous subject reports, physical examinations, and investigator observations. Incidence, severity (graded according to CTCAE v5.0), and relationship to study treatment will be recorded. The unit of measure for this outcome is the count of participants experiencing at least one TEAE.
Baseline (before treatment) to Week 4
Number of Participants with Clinically Significant Abnormalities in Safety Assessments
Zeitfenster: Baseline (before treatment) to Week 4
Safety assessments include vital signs (temperature, respiratory rate, heart rate, and blood pressure), clinical laboratory tests (hematology, blood biochemistry, urinalysis, and stool examination), and 12-lead electrocardiography (ECG). The number of participants with at least one clinically significant abnormal finding according to protocol-defined clinical significance criteria will be reported. The unit of measure for this outcome is the count of participants; participants with multiple abnormal findings will be counted only once for this measure.
Baseline (before treatment) to Week 4
Bristol Stool Form scale
Zeitfenster: before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment
Assesses stool form, classified into types 1 to 7. The mean daily BSFS score recorded on diary cards during the treatment period, and the typical BSFS type at each visit time point will be recorded.
before treatment, after 4 weeks of treatment, and 12 weeks after the end of treatment

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

1. Juli 2026

Primärer Abschluss (Geschätzt)

1. Januar 2028

Studienabschluss (Geschätzt)

1. Februar 2028

Studienanmeldedaten

Zuerst eingereicht

17. Juni 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

30. Juni 2026

Zuerst gepostet (Tatsächlich)

7. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

7. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

30. Juni 2026

Zuletzt verifiziert

1. Juni 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

JA

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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