- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Inscription (Estimé)
Phase
- Phase 3
Contacts et emplacements
Coordonnées de l'étude
- Nom: Cem Atabiner
- Numéro de téléphone: 05324593292
- E-mail: info@nimsai.com
Lieux d'étude
-
-
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Bursa, Turquie (Türkiye)
- Nimsai Academia Clinical Research Center
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Contact:
- Cem Atabiner
- Numéro de téléphone: 05324593292
- E-mail: info@nimsai.com
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Quadruple
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: 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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Comparateur placebo: 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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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Hemorrhoid Regression Rate
Délai: Day 10
|
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).
|
Day 10
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Visual Analog Scale Symptom Score Change
Délai: Baseline to Day 10
|
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
Délai: 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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Autres mesures de résultats
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Incidence of Mild Gastrointestinal Discomfort
Délai: 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
Délai: 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
Délai: 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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Collaborateurs et enquêteurs
Parrainer
Publications et liens utiles
Publications générales
- Atabiner C. The War-Drill Model of Hemorrhoid Pathogenesis. Research Square. 2025. doi:10.21203/rs.3.rs-6607959/v1
Liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- NA-2026-01
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Délai de partage IPD
Critères d'accès au partage IPD
Type d'informations de prise en charge du partage d'IPD
- PROTOCOLE D'ÉTUDE
- SÈVE
- CIF
- RSE
Données/documents d'étude
Informations sur les médicaments et les dispositifs, documents d'étude
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