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CompletedNCT03405922Updated Jul 10, 2019

Perianal Nerval Block in Proctological Interventions

A Phase 4 interventional study of Placebo 40 mL Saline 0.9% and 40 mL Ropivacain 0.5% in Perianal Fistula, Fissure in Ano and Hemorrhoids, sponsored by University Hospital, Basel, Switzerland. Completed at 1 site in Switzerland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-07-10.

Sponsored by University Hospital, Basel, Switzerland · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
166
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study is to evaluate whether a local perianal block performed during a proctological intervention can reduce the postoperative pain.

Read the detailed description

The aim of this study is to evaluate whether a local perianal block performed during a proctological intervention can reduce the postoperative pain.

All patients will undergo surgery under general or spinal anesthesia. At the end of the surgery, the surgeon will perform a perianal block using the local anesthetic or the placebo upon randomisation. The experimental group will receive a local anesthetics and the control group a normal saline injection. All injections will be perianal, peripheral to the external anal sphincter.

02

Conditions studied

  • Perianal Fistula
  • Fissure in Ano
  • Hemorrhoids
03

In context

Fissure in Ano

84 studies on the registry are indexed under Fissure in Ano; 16 are open to participants now.

This study's enrollment of 166 is above the median of 99 across 65 interventional studies indexed under Fissure in Ano.

Browse Fissure in Ano studies →

Lead sponsor

University Hospital, Basel, Switzerland is the lead sponsor of 990 studies on the registry; 189 are open to participants now.

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

04

Who can participate

Ages eligible
18 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

  • Patients with surgical indication for hemorrhoids, fistula-in-ano or anal fissures.
  • Age of 18 or above

Exclusion criteria

Exclusion Criteria:

  • age under 18.
  • Patients unable to understand an .
  • Emergency operations
  • Pregnant women.
  • Patients with acute perianal infection.
  • Patients allergic to any component of the local anesthetic
Terms in these criteria, in plain language(1)

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.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
166 participants (actual)

Study arms

  • Placebo comparator
    Placebo

    Placebo 40 mL Saline 0.9%

    Drug: Placebo 40 mL Saline 0.9%

  • Active comparator
    Ropivacain

    40 mL Ropivacain 0.5%

    Drug: 40 mL Ropivacain 0.5%

Interventions

  • DrugPlacebo 40 mL Saline 0.9%

    Injection of 40 mL 0.9% saline

  • Drug40 mL Ropivacain 0.5%

    Ropivacaine Hcl 0.5% Injection 40 mL

06

What researchers measure

Primary outcomes

  1. Postoperative Pain

    Postoperative Pain assessed by visual analogue scale (max. 10, min.0 points, range: 0-10; 0 = no pain at all, 10 = worst pain ever experienced)

    Time frame: 24 hours post-surgery

Secondary outcomes

  1. Quality of Life assessed by questionnaire

    Quality of Life assessed by questionnaire

    Time frame: 2 weeks post-surgery

07

Study locations

1 site
  • St Claraspital
    Basel, 4016, Switzerland
08

References and documents

Publications

  • Rotigliano N, Fuglistaler I, Guenin MO, Dursunoglu GB, Freiermuth D, von Flue M, Steinemann DC. Perianal block with ropivacaine as a supplement to anaesthesia in proctological surgery: double-blind randomized placebo-controlled trial (PERCEPT). Br J Surg. 2020 Jul;107(8):960-969. doi: 10.1002/bjs.11520. Epub 2020 Mar 18. PubMed 32187663 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 10, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03405922
Responsible party
Sponsor
First posted
Jan 23, 2018
Start date
Feb 1, 2018
Primary completion
Jul 5, 2019
Completion
Jul 5, 2019
Last update
Jul 10, 2019

Study contacts

Daniel Steinemann
principal investigator · St:Claraspital

Oversight

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

Not currently enrolling

This study is completed, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

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