This study investigated a new understanding of hemorrhoid formation and evaluated a novel systemic treatment. For 200 years, hemorrhoids were conventionally understood as isolated swollen veins. However, our new "War-Drill Model" proposes that hemorrhoids are primarily caused by blood pooling (venous congestion) in the anal region, which then secondarily leads to vascular deformation. This congestion is hypothesized to arise from either underlying health issues ("War Mode") or natural physiological and hormonal changes ("Drill Mode"). We conducted a double-blind, placebo-controlled randomized controlled trial on 300 patients with Grade 2-3 hemorrhoids to evaluate the efficacy and safety of Nimsai Herbal. This study explores the potential for "War Mode" hemorrhoids to serve as an early warning sign for other serious underlying conditions and aims to validate a novel systemic therapeutic approach.
Who can participate
Age range
18 Years – 70 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
Endoscopically confirmed Grade 2 or 3 internal hemorrhoids.
History of hemorrhoidal symptoms \>6 weeks.
Age 18-70 years at the time of enrollment.
Provided written informed consent prior to any study-related procedures.
Willingness and ability to comply with all study procedures and follow-up visits.
Exclusion Criteria:
Grade 1 or 4 hemorrhoids.
Any known anorectal malignancy or suspicion of malignancy.
Pregnancy or lactation.
Known hypersensitivity or allergy to Nimsai Herbal components or placebo ingredients.
Significant systemic diseases (e.g., severe cardiovascular, renal, hepatic, or hematological disorders) that could affect study participation or safety.
Participation in another clinical trial within 30 days prior to screening.
Any condition that, in the opinion of the investigator, might compromise the safety of the participant or the integrity of the study data.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.