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Enrolling by invitationNCT06748014Updated Dec 24, 2024

The Efficacy of Aescin in Combination With Micronized Purified Flavonoid Fraction (MPFF) in the Control of Bleeding and Prevent Recurrence of Acute Internal Hemorrhoids, A Randomized Controlled Trial, A Pilot Study

An Early Phase 1 interventional study of Aescin in Horse Chestnut and MPFF in Hemorrhoid, sponsored by Chiang Mai University. Enrolling by invitation at 1 site in Thailand. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2024-12-24.

Sponsored by Chiang Mai University · Early Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jul 2025, 1 year 4 months ago, but the record still lists the study as enrolling by invitation.
Phase
Early Phase 1
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
20 Years and older
Sex
All
01

Study summary

Hemorrhoidal disease, characterized by symptomatic enlargement and distal displacement of anal cushions, has been a subject of recognition and management for centuries. The etymology of "hemorrhoid" is traced back to the Greek words haima (blood) and rhoos (flow). Prevalent in over 20% of the population across various life stages, this anorectal condition impacts both genders. The multifaceted development of the disease incorporates theories encompassing abnormal dilation of hemorrhoidal plexuses, distension of arteriovenous anastomoses, prolapse of anal pads, and a myriad of genetic, anatomical, dietary, and lifestyle factors. Manifestations range from venous distension to bleeding and thrombosis, with classification based on location (internal/external/combined) and degree of prolapse (grade 1-4).

Upon comprehensive history-taking and examinations, including digital rectal and proctoscope assessments, a definitive diagnosis is established, leading to the treatment phase. Although outpatient procedures demonstrate efficacy, patients may persist with pain and discomfort. Medical intervention assumes significance for stages 1 and 2, incorporating approaches such as rubber-band ligation, injection sclerotherapy, and dietary modifications. Micronized Purified Flavonoid Fraction (MPFF), integral to hemorrhoid treatment, has been scrutinized for its ability to mitigate pathogenic processes culminating in acute bleeding[8]. The stagnation of blood in vascular plexuses prompts an inflammatory response, activating white cells and increasing vessel wall permeability. MPFF's flavonoid compounds are posited to alleviate bleeding by augmenting venous tone, reducing stasis, inhibiting inflammatory mediators, and enhancing lymphatic drainage. Multiple trials substantiate MPFF's efficacy in ceasing bleeding, alleviating symptoms, and preventing hemorrhoid relapse. A recent randomized controlled trial shows that MPFF can cease bleeding hemorrhoids in 3 to 4 days.

Aescin, a saponin mixture found in Aesculus hippocastanum (horse chestnut). The primary active component, β-aescin, contributes to the plant's medicinal attributes. Experimental investigations in animal models underscore its anti-edematous, anti-inflammatory, and venotonic properties, attributed to molecular mechanisms facilitating ion entry into channels and elevating venous tension. In the past, we used aescin for hemorrhoid treatment benefit in reducing mass effect with control bleeding postoperative hemorrhoidectomy. Based on our previous project (SUR-2567-0150), the combination of aescin with MPFF has demonstrated significant efficacy in stopping bleeding and reducing the mass effect in Grade 1 and 2 hemorrhoids. We aim to study the long-term effects of this combination over 1, 3, and 6 months. This study seeks to provide valuable insights that could inform and refine therapeutic strategies for managing hemorrhoids, ultimately improving patient outcomes

Read the detailed description

Hemorrhoidal disease, characterized by symptomatic enlargement and distal displacement of anal cushions, has been a subject of recognition and management for centuries. The etymology of "hemorrhoid" is traced back to the Greek words haima (blood) and rhoos (flow). Prevalent in over 20% of the population across various life stages, this anorectal condition impacts both genders. The multifaceted development of the disease incorporates theories encompassing abnormal dilation of hemorrhoidal plexuses, distension of arteriovenous anastomoses, prolapse of anal pads, and a myriad of genetic, anatomical, dietary, and lifestyle factors. Manifestations range from venous distension to bleeding and thrombosis, with classification based on location (internal/external/combined) and degree of prolapse (grade 1-4).

Upon comprehensive history-taking and examinations, including digital rectal and proctoscope assessments, a definitive diagnosis is established, leading to the treatment phase. Although outpatient procedures demonstrate efficacy, patients may persist with pain and discomfort. Medical intervention assumes significance for stages 1 and 2, incorporating approaches such as rubber-band ligation, injection sclerotherapy, and dietary modifications. Micronized Purified Flavonoid Fraction (MPFF), integral to hemorrhoid treatment, has been scrutinized for its ability to mitigate pathogenic processes culminating in acute bleeding[8]. The stagnation of blood in vascular plexuses prompts an inflammatory response, activating white cells and increasing vessel wall permeability. MPFF's flavonoid compounds are posited to alleviate bleeding by augmenting venous tone, reducing stasis, inhibiting inflammatory mediators, and enhancing lymphatic drainage. Multiple trials substantiate MPFF's efficacy in ceasing bleeding, alleviating symptoms, and preventing hemorrhoid relapse. A recent randomized controlled trial shows that MPFF can cease bleeding hemorrhoids in 3 to 4 days.

Aescin, a saponin mixture found in Aesculus hippocastanum (horse chestnut). The primary active component, β-aescin, contributes to the plant's medicinal attributes. Experimental investigations in animal models underscore its anti-edematous, anti-inflammatory, and venotonic properties, attributed to molecular mechanisms facilitating ion entry into channels and elevating venous tension. In the past, we used aescin for hemorrhoid treatment benefit in reducing mass effect with control bleeding postoperative hemorrhoidectomy. Based on our previous project (SUR-2567-0150), the combination of aescin with MPFF has demonstrated significant efficacy in stopping bleeding and reducing the mass effect in Grade 1 and 2 hemorrhoids. We aim to study the long-term effects of this combination over 1, 3, and 6 months. This study seeks to provide valuable insights that could inform and refine therapeutic strategies for managing hemorrhoids, ultimately improving patient outcomes

02

Conditions studied

  • Hemorrhoid

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Keywords

  • hemorrhoid
  • MPFF
  • Asecin
03

In context

Hemorrhoids

238 studies on the registry are indexed under Hemorrhoids; 73 are open to participants now.

This study's planned enrollment of 120 is above the median of 100 across 183 interventional studies indexed under Hemorrhoids.

Browse Hemorrhoids studies →

Lead sponsor

Chiang Mai University is the lead sponsor of 119 studies on the registry; 12 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Acute active bleeding hemorrhoid grade 1 and 2 with in 7 days
  • Age over 20 years
  • In patients aged over 50 years, it is imperative to confirm the absence of any alternative causes of bleeding through a colonoscopy
  • Can follow up in 6 months

Exclusion criteria

Exclusion Criteria:

  • Bleeding disorder
  • History of colorectal cancer, inflammatory bowel disease, portal hypertension, chronic kidney disease grade 3 or over
  • Patient required other treatment such as hemorrhoidectomy or RBL
  • Patient who received antiplatelet or anticoagulant
  • Physical exam reveals anal fissure
  • Pregnancy
  • Any psychotic disorder
  • Refuse to participate
05

Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
120 participants (estimated)

Study arms

  • Placebo comparator
    MPFF + Placebo

    Patient will recived MPFF 3000 mg for 7 day then 1000 mg for 2 month + placebo

    Drug: MPFF

  • Active comparator
    MPFF + Aescin

    Patient will recived MPFF 3000 mg for 7 day then 1000 mg for 2 month + Aescin 60 mg for 2 month

    Drug: Aescin in Horse Chestnut · Drug: MPFF

Interventions

  • DrugAescin in Horse Chestnut

    Patient will recived MPFF 3000 mg for 7 day then 1000 mg for 2 month + Aescin 60 mg for 2 month

  • DrugMPFF

    MPFF 3000 mg 7 day then 1000 mg 2 months

06

What researchers measure

Primary outcomes

  1. Recurrence of hemorrhoid

    Present of bleeding or protuding mass in1 3 6 month

    Time frame: 6 months

Secondary outcomes

  1. Stop bleeding in acute phase

    Compare efficacy of bleeding cessation in 7 day

    Time frame: 7 day

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: Yes — all IPD that underlie results in a publication

Supporting information: Study protocol, Statistical analysis plan

Time frame: 6 months

Access criteria: contact via email

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Dec 2024 (actual). Primary completion is estimated for Jul 2025, 7 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 19, 2024
First posted
Dec 24, 2024
StartActual
Dec 20, 2024
Primary completionEst.
Jul 2025
CompletionEst.
Dec 2025
Last update
Dec 24, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 24, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06748014
Responsible party
Witcha Vipudhamorn (MD, Chiang Mai University) — Principal investigator
First posted
Dec 24, 2024
Start date
Dec 20, 2024
Primary completion
Jul 2025 (estimated)
Completion
Dec 2025 (estimated)
Last update
Dec 24, 2024

Study contacts

WITCHA VIPUDHAMORN, MD
principal investigator · Division of Colorectal Surgery, Department of Surgery, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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