NCT06602349

Brief Summary

The goal of this clinical trial is to evaluate the efficacy of a posterior perineal block performed under neurostimulation at 1 month after local anesthetic infiltration in the treatment of chronic idiopathic ano-perineal pain. The main questions aims to answer are :

  • be managed with a posterior perineal block of lidocaine or saline solution under neurostimulation.
  • complete a questionnaire on pain, anxiety and depression at inclusion and one month after injection of the research product (lidocaine or saline solution). Researchers will compare between the two treatment arms (lidocaine versus saline solution) to see the rate of patients with a reduction of at least 3 points on a visual analog pain scale between inclusion and 1 month after the first injection.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
35mo left

Started Dec 2023

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress46%
Dec 2023Mar 2029

Study Start

First participant enrolled

December 8, 2023

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

September 16, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 19, 2024

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 8, 2028

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 8, 2029

Last Updated

October 1, 2024

Status Verified

September 1, 2024

Enrollment Period

5 years

First QC Date

September 16, 2024

Last Update Submit

September 30, 2024

Conditions

Keywords

LIDOCAINEposterior perineal blockrandomized, double-blindSalin solutionchronic idiopathic ano-perineal pain

Outcome Measures

Primary Outcomes (1)

  • Comparison between the two treatment arms (lidocaine versus saline) of the rate of patients with a reduction of at least 3 points on a visual analog pain scale (VAS) between inclusion and 1 month after the first injection.

    Comparison between the two treatment arms (lidocaine versus saline) of the rate of patients with a reduction of at least 3 points on a visual analog pain scale (VAS)(lower value is 0 and means no pain, higher is 10 means the maximum of pain) between inclusion and 1 month after the first injection. The rate of successful patients at M1 between the two randomization arms will be analyzed using logistic regression, with treatment success or failure as the explanatory variable and randomization arm and duration of pain (stratification factor) as the explanatory variables.

    3 month

Study Arms (2)

experimental ARMS

EXPERIMENTAL

treated with lidocaine 10 mg/ml

Drug: Lidocaine 10 MG/ML

placebo arm

PLACEBO COMPARATOR

treated with placebo;salin solution

Drug: Saline

Interventions

administration of lidocaine in posterior perineal block infiltration

experimental ARMS
SalineDRUG

administration of salin solution in posterior perineal block infiltration

placebo arm

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient 18 years of age or older,
  • Express consent to participate in the study
  • Affiliated or beneficiary of a social security plan
  • Presenting chronic idiopathic ano-perineal pain
  • MRI normal or without pathology explaining pain (Multidisciplinary consultation meeting reread if in doubt)
  • Resistance to \"standard\" 1st-line medical treatment (level 1 or 2 analgesics and/or non-steroidal anti-inflammatory and/or local topicals)

You may not qualify if:

  • Patient benefiting from a legal protection measure
  • Pregnant or breast-feeding woman
  • General and/or local infection (fistulous or cutaneous suppuration of anal margin) in progress
  • Known neurological pathology that may explain pain
  • Psychiatric pathology requiring medication
  • Anticoagulants or haemostasis disorders
  • Hypersensitivity to lidocaine hydrochloride or local anesthetics
  • Recurrent porphyrias

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Groupe hospitalier Diaconesses Croix Saint Simon

Paris, Île-de-France Region, 75020, France

RECRUITING

MeSH Terms

Interventions

LidocaineSodium Chloride

Intervention Hierarchy (Ancestors)

AcetanilidesAnilidesAmidesOrganic ChemicalsAniline CompoundsAminesChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Central Study Contacts

Valérie Millul, RC manager

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 16, 2024

First Posted

September 19, 2024

Study Start

December 8, 2023

Primary Completion (Estimated)

December 8, 2028

Study Completion (Estimated)

March 8, 2029

Last Updated

October 1, 2024

Record last verified: 2024-09

Locations