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Use of Botulinum Toxin during hemorrhoidectomy surgery in an attempt to reduce postoperative pain and accelerate healing

Analysis of pain and wound healing in the treatment of hemorrhoidal disease with intraoperative botulinum toxin in the postoperative period of open hemorrhoidectomy: a randomized clinical trial

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
REBEC
Registry ID
RBR-9wyb7ht
Enrollment
66
Registered
2026-05-06
Start date
2026-07-01
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Proctoscopy Surgery

Interventions

This is a randomized, double-blind clinical trial in which a total of 66 (sixty six) adult patients electively hospitalized with a diagnosis of hemorrhoidal disease will participate in the research fo
group I will undergo conventional open hemorrhoidectomy with intraoperative botulinum toxin insertion and group C will undergo conventional open hemorrhoidectomy without botulinum toxin insertion, wit
this evaluation will be based on clinical variables and results of complementary examinations considering the risks of cardiac and non-cardiac complications, based on the classification of the America
the participants will not know which group they are in, but the participant will know that there are two groups in the research and their respective interventions
to ensure the best implementation of blinding, the outcome assessor will be a physician who is not part of the research team
this measure can effectively prevent communication between patients and assessors receiving different treatments, thus improving the reliability of the clinical trial, the primary outcome will be the
secondary outcomes will be the amount of analgesia used by the participant postoperatively (use of ibuprofen 400 milligrams and dipyrone or parace

Sponsors

Fundacao do ABC
Lead Sponsor
Fundacao do ABC
Collaborator

Eligibility

Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Both sexes; hospitalized for elective hemorrhoidectomy; grade III or IV hemorrhoidal disease with or without anal skin tags; 18 years of age or older; in agreement and sign the informed consent form

Exclusion criteria

Exclusion criteria: History of egg allergy; presence of uremia or impaired renal function; use of antibiotics; use of steroidal anti-inflammatory drugs; use of magnesium sulfate-based calcium channel blockers; use of anticoagulants; preoperative fecal incontinence; presence of other diseases such as anorectal fissure or fistula associated with hemorrhoidal disease; clinical suspicion of neoplastic lesion of the anal canal or associated with hemorrhoidal disease; pregnant or breastfeeding women; performance of another surgical technique for the treatment of hemorrhoidal disease.

Design outcomes

Primary

MeasureTime frame
It is expected that patients receiving botulinum toxin may benefit from improved pain relief and, in turn, greater postoperative comfort. The primary outcome will be the subjective intensity of pain, measured daily by patients using a visual analog scale (VAS) from 0 to 10. This scale will be recorded from the immediate postoperative period (d0) until 7 consecutive days after hospital discharge (d1, d2, d3, d4, d5, d6, and d7)

Secondary

MeasureTime frame
It is expected to observe that patients receiving botulinum toxin require less analgesics compared to the control group. Secondary outcome will be the amount of analgesia used by the participant post-operatively (use of ibuprofen (400 mg) and dipyrone or paracetamol;It is expected to observe that patients receiving botulinum toxin require experience improved bowel movement patterns with a reduced need for laxatives compared to the control group;It is expected to observe that patients receiving botulinum toxin have a shorter healing time compared to the control group. Healing time will be defined as the interval between the day of the hemorrhoidectomy and the last outpatient visit for postoperative care;It is expected to observe that patients receiving botulinum toxin to experience less urinary retention compared to the control group;It is expected to observe that patients receiving botulinum toxin to experience to return to work activities more quickly compared to the control group;It is expected to observe that patients receiving botulinum toxin require a shorter hospital stay compared to the control group;Patients receiving botulinum toxin are expected to require less analgesics; less laxatives; have a shorter healing time; less urinary retention; a faster return to work; and a shorter hospital stay compared to the control group. Secondary outcomes will be the amount of analgesia used by the participant post-operatively (use of ibuprofen (400 mg) and dipyrone or paracetamol); the frequency of daily bowel movements; healing time; the need for laxatives; the presence of urinary retention; the time to return to work; and the length of post-operative hospital stay. Healing time will be defined as the interval between the last visit to the outpatient clinic for post-operative care and the day of the hemorrhoidectomy;Patients receiving botulinum toxin are expected to require less analgesics; less laxatives; have a shorter healing time; less urinary retention; a faster r

Countries

BR

Contacts

Public ContactSandra Boratto

Fundacao do ABC

sandraboratto@gmail.com+55 (11) 973380504

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Jun 11, 2026