- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07669662
Nimsai Herbal for Grade 2-3 Hemorrhoids: A Quadruple-Blind Placebo-Controlled Mechanistic Trial (NAJ2)
Quadruple-Blind, Placebo-Controlled, Parallel-Group Randomized Controlled Trial to Evaluate the Efficacy and Safety of Nimsai Herbal in Patients With Grade 2-3 Hemorrhoids
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
This is a prospective, single-center, quadruple-blind, placebo-controlled, parallel-group randomized controlled trial designed as a mechanistic signal-detection study. The trial evaluates the War-Drill Model of hemorrhoid pathogenesis, which proposes that venous congestion, rather than primary vascular deformation, constitutes the indispensable initiating event in hemorrhoid formation. The model distinguishes two hemodynamic phenotypes: War Mode, associated with systemic inflammation and sustained venous congestion, and Drill Mode, characterized by hormonally mediated transient venous engorgement.
A total of 50 participants with endoscopically confirmed Grade 2-3 internal hemorrhoids and symptom duration exceeding 6 weeks will be randomized 1:1 to Nimsai Herbal (600 mg once daily) or matching placebo for 10 consecutive days. The study employs quadruple blinding, with participants, care providers, investigators, and outcomes assessors all masked to treatment assignment. An independent Data Safety Monitoring Board will provide ongoing safety oversight.
The primary outcome is hemorrhoid regression rate at Day 10, defined as either reduction in Goligher grade or ≥75% reduction in composite severity score. Secondary outcomes include mean change in self-reported symptom severity (VAS) and complete symptom resolution rate. Safety outcomes include incidence of mild gastrointestinal discomfort, serious adverse events, and withdrawals due to adverse events. Diabetic participants will be specifically monitored for transient diarrhea during Days 1-3.
The Parola Phenomenon, a patient-reported clinical indicator, will be assessed at baseline to stratify participants into War Mode and Drill Mode phenotypes for exploratory subgroup analyses.
The trial is prospectively registered on ClinicalTrials.gov and approved by the Nimsai Academia Ethics Committee. Written informed consent will be obtained from all participants. The complete study protocol, statistical analysis plan, and de-identified individual participant data will be made publicly available through the Dryad Digital Repository.
Studientyp
Einschreibung (Geschätzt)
Phase
- Phase 3
Kontakte und Standorte
Studienkontakt
- Name: Cem Atabiner
- Telefonnummer: 05324593292
- E-Mail: info@nimsai.com
Studienorte
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-
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Bursa, Türkei (türkiye)
- Nimsai Academia Clinical Research Center
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Kontakt:
- Cem Atabiner
- Telefonnummer: 05324593292
- E-Mail: info@nimsai.com
-
-
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Endoscopically confirmed Grade 2 or 3 internal hemorrhoids
History of hemorrhoidal symptoms persisting for more than 6 weeks prior to screening
Age 18 to 70 years inclusive at time of informed consent
Willingness and ability to provide written informed consent
Willingness and ability to comply with all study procedures, schedules, and follow-up requirements
Exclusion Criteria:
- Diagnosis of Grade 1 or Grade 4 hemorrhoids
Any known anorectal malignancy or suspicion of malignancy
Active bleeding from sources other than hemorrhoids
Currently pregnant or lactating women, or women of childbearing potential not using effective contraception
Known hypersensitivity or allergy to any component of Nimsai Herbal or placebo
Significant systemic diseases including severe cardiovascular disease, severe renal impairment, severe hepatic dysfunction, or uncontrolled diabetes mellitus (HbA1c > 9%)
Any medical or psychiatric condition that might compromise participant safety or data integrity
Participation in another interventional clinical trial within 30 days prior to screening
Use of concurrent treatments for hemorrhoids within 7 days prior to screening
History of hemorrhoidectomy or other invasive hemorrhoid procedures within the last 6 months
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
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Experimental: Nimsai Herbal Group
Participants in this arm will receive Nimsai Herbal capsules (600 mg) orally once daily for 10 consecutive days.
Nimsai Herbal is a proprietary oral phytotherapeutic formulation.
The product is approved as a food supplement by the Turkish Ministry of Agriculture and Forestry (TEG Approval No: 015473-13.12.2022).
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600 mg oral capsule taken once daily.
Contains a proprietary blend of Centella asiatica extract, Curcuma longa extract, and Piper nigrum extract.
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Placebo-Komparator: Placebo Group
Participants in this arm will receive placebo capsules identical in appearance, taste, and packaging to Nimsai Herbal, administered orally once daily for 10 consecutive days.
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Identical-appearing oral capsule containing inert ingredients, matched for taste and packaging.
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Hemorrhoid Regression Rate
Zeitfenster: Day 10
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Percentage of participants achieving a clinical response at Day 10, defined as either a reduction in Goligher grade or a ≥75% reduction in composite hemorrhoid severity score from baseline.
The composite score is the sum of clinician-assessed scores for pain, bleeding, itching, and swelling, each rated on a 0-10 Visual Analog Scale (total range 0-40).
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Day 10
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Visual Analog Scale Symptom Score Change
Zeitfenster: Baseline to Day 10
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Mean change from baseline in self-reported overall hemorrhoid symptom severity at Day 10, measured on a 0-10 Visual Analog Scale (0 = no symptoms, 10 = most severe symptoms).
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Baseline to Day 10
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Symptom Resolution Rate
Zeitfenster: Day 10
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Percentage of participants achieving complete resolution of all baseline hemorrhoid symptoms (composite severity score = 0) at Day 10.
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Day 10
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Andere Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Incidence of Mild Gastrointestinal Discomfort
Zeitfenster: Baseline to Day 10
|
Percentage of participants reporting mild gastrointestinal adverse events (nausea, bloating, dyspepsia) during the 10-day intervention period.
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Baseline to Day 10
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Incidence of Serious Adverse Events
Zeitfenster: Baseline to Day 10
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Percentage of participants experiencing serious adverse events as defined by ICH GCP guidelines during the 10-day intervention period.
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Baseline to Day 10
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Incidence of Transient Diarrhea in Diabetic Participants
Zeitfenster: Days 1-3
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Number of diabetic participants experiencing transient diarrhea resolving spontaneously within 24-48 hours during the first three days of the intervention.
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Days 1-3
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Mitarbeiter und Ermittler
Sponsor
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
- Atabiner C. The War-Drill Model of Hemorrhoid Pathogenesis. Research Square. 2025. doi:10.21203/rs.3.rs-6607959/v1
Nützliche Links
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Geschätzt)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- NA-2026-01
Plan für individuelle Teilnehmerdaten (IPD)
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Beschreibung des IPD-Plans
IPD-Sharing-Zeitrahmen
IPD-Sharing-Zugriffskriterien
Art der unterstützenden IPD-Freigabeinformationen
- STUDIENPROTOKOLL
- SAFT
- ICF
- CSR
Studiendaten/Dokumente
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Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
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