ClinicalTrials.gg
RecruitingNCT04329364COHLAHUpdated Apr 22, 2024

RCT Comparing Conventional Haemorrhoidectomy With Laser Haemorrhoidoplasty

A Phase 2/3 interventional study of Laser Haemorrhoidoplasty (LAH) and Open milligan-morgan conventional haemorrhoidectomy in Hemorrhoids, sponsored by Sengkang General Hospital. Recruiting at 1 site in Singapore. Open to participants aged 21 Years to 90 Years. Per ClinicalTrials.gov, last updated 2024-04-22.

Sponsored by Sengkang General Hospital · Phase 2/3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 10 months ago, but the record still lists the study as recruiting.
  • Started Oct 2020; still recruiting 6 years 1 month later.
Phase
Phase 2/3
Study type
Interventional
Enrollment
128
Allocation
Randomized
Ages
21 Years to 90 Years
Sex
All
01

Study summary

Haemorrhoids or piles are the most common colorectal condition in the local population. Patients often present with bleeding with bowel movement or anal discomfort, both of which causes significant anxiety and stress. For symptomatic sizeable piles, the treatment of choice still remains the conventional open excision (COH). However, this technique carries with it a significant risk of bleeding and pain immediately after the operation, leading to some period of discomfort for the patients. The laser haemorrhoidoplasty procedure (LAH) has been shown in preliminary studies to have less pain, and less complications compared to COH. This study aims to directly compare these two techniques in a local Asian population.

The investigators would be conducting a single-centre RCT simultaneously comparing the conventional open Milligan-Morgan haemorrhoidectomy (COH) and the laser haemorrhoidoplasty procedure (LAH) for the treatment of symptomatic grade ll-lV haemorrhoids. Primary outcomes will be post-operative pain while secondary outcomes include post-operative bleeding, readmission and/or reoperations, haemorrhoid-related quality of life (QoL) results and recurrence of symptoms up to a year post procedure

02

Conditions studied

  • Hemorrhoids

Browse trials for

Keywords

  • haemorrhoid
  • laser
  • haemorrhoidectomy
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 128 is above the median of 100 across 183 interventional studies indexed under Hemorrhoids.

Browse Hemorrhoids studies →

Lead sponsor

Sengkang General Hospital is the lead sponsor of 16 studies on the registry; 10 are open to participants now.

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

04

Who can participate

Ages eligible
21 Years to 90 Years
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

  1. between 21-90 years old
  2. presents with symptomatic haemorrhoids as evident from clinical assessment
  3. never had any haemorrhoid-related operations performed on them before
  4. fit for general anaesthesia
  5. able to give
  6. willing to be randomized
  7. willing to fill in post-operative questionnaires and be compliant to follow up

Exclusion criteria

Exclusion Criteria:

  1. Are pregnant
  2. Are prisoners
  3. Intellectually, mentally or emotionally deemed not able to provide an and/or are unable to fill up the post-procedure questionnaires/VAS score
  4. Have had previous haemorrhoid procedural treatment before (except Rubber Band Ligation)
  5. Declined endoscopic evaluation
  6. Are on anti-coagulation
  7. Have history of thrombophilia
  8. Are on
  9. Have haemorrhoids which are incidentally found on endoscopy/clinical examination but are asymptomatic from it
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
128 participants (estimated)

Study arms

  • Experimental
    Laser Haemorrhoidoplasty (LAH)

    treatment that we would like to study

    Combination Product: Laser Haemorrhoidoplasty (LAH)

  • Active comparator
    Conventional Open Haemorrhoidectomy (COH)

    gold standard treatment as comparator

    Procedure: Open milligan-morgan conventional haemorrhoidectomy

Interventions

  • Combination productLaser Haemorrhoidoplasty (LAH)

    Using a laser diode to cause coagulative necrosis to the haemorrhoidal cushion

  • ProcedureOpen milligan-morgan conventional haemorrhoidectomy

    conventional excisional haemorrhoidectomy

06

What researchers measure

Primary outcomes

  1. Pain scores

    Daily visual analogue pain scale in the first 10 days after surgery. A score of 10 being the worst pain experienced and 1 being no pain experienced.

    Time frame: 10 days from op

Secondary outcomes

  1. Operative duration

    duration of operation

    Time frame: during operation

  2. Post-op bleeding

    incidence of bleeding post op

    Time frame: 10 days from operation

  3. readmission

    readmission due to complications

    Time frame: 3 months

  4. recurrence

    recurrence of haemorrhoids or symptoms

    Time frame: 1 year post operation

  5. Quality of Life measures

    2 validated questionnaires will be used (\[patient self reported symptoms of haemorrhoids\] Nystrom, et al. and \[standardised haemorrhoidectomy QOL survey\] Chew, et al)

    Time frame: 10 days, 1 month, 3 months and 1 year post operation

07

Study locations

1 of 1 sites recruiting
  • Sengkang General Hospital
    Singapore, 544886, Singapore
    Recruiting
    • Fung Joon Foo · Contactfoo.fung.joon@singhealth.com.sg · +65 6930 5354
    • Frederick H Koh, FRCSEd · Sub investigator
    • Min-Hoe Chew, FRCSEd · Sub investigator
    • Winson Tan, FRCSEd · Sub investigator
    • Sharmini Sivarajah, FRCSEd · Sub investigator
    • Leonard Ho, FRCSEd · Sub investigator
    • Fung Joon Foo, FRCSEd · Principal investigator
08

References and documents

Publications

  • Koh FH, Foo FJ, Ho L, Sivarajah SS, Tan WJ, Chew MH. Study Protocol for the Use of Conventional Open Haemorrhoidectomy versus Laser Haemorrhoidoplasty in the Treatment of Symptomatic Haemorrhoids: A Randomized Controlled Trial. Eur Surg Res. 2020;61(6):201-208. doi: 10.1159/000513844. Epub 2021 Feb 25. PubMed 33631763 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No — country's personal data protection Act restrictions clearance

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 22, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04329364
Lead sponsor
Sengkang General Hospital
Collaborators
Biolitec
Responsible party
Koh Hong Xiang Frederick (Associate Consultant, Principal Investigator, Sengkang General Hospital) — Principal investigator
First posted
Apr 1, 2020
Start date
Oct 1, 2020
Primary completion
Dec 31, 2024 (estimated)
Completion
Jun 30, 2025 (estimated)
Last update
Apr 22, 2024

Study contacts

Fung Joon Foo
Contact
foo.fung.joon@singhealth.com.sg
+65 6930 5354
Fung Joon Foo
Contact
foo.fung.joon@singhealth.com.sg
+65 6930 6000

Oversight

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

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

Contact study team

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion