Study Stopped
change of care at the center and low recruitment rate
Comparison of the Effectiveness of the Simple Puncture Compared to the Incision of an Abscess on the piLOnidal Sinus
PILO
PILO - Comparison of the Effectiveness of the Simple Puncture Compared to the Incision of an Abscess on the piLOnidal Sinus
1 other identifier
interventional
5
1 country
1
Brief Summary
Pilonidal disease is a common disease characterized by the presence of abscess in the intergluteal groove. During periods of abscess, current recommendations are to make a simple incision with daily wicking of the abscess. Direct excision at this time is not recommended because there is a risk of incomplete excision. The principle of directed healing after incision of the abscess results in an average dressing period of 21 days. A definitive resection is recommended after 4 to 6 weeks, when healing has been achieved, in order to limit the risk of infectious recurrence. An alternative has recently been proposed, consisting of a puncture of the abscess, aimed at emptying it under antibiotic coverage. The major advantage of this treatment is that patients no longer need general anesthesia to flatten the abscess. Although this technique is promising, it is currently not the subject of any published or ongoing randomized controlled study registered on Clinicaltrials.gov. The research hypothesis is that the two techniques have the same results in terms of recurrence before definitive surgical treatment but that drainage puncture would imply a faster healing time, a lower cost of treatment, a quality of superior support, reduced support time and reduced work stoppage.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Mar 2025
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 16, 2024
CompletedFirst Posted
Study publicly available on registry
April 23, 2024
CompletedStudy Start
First participant enrolled
March 20, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 9, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
January 16, 2026
CompletedJune 24, 2026
June 1, 2026
9 months
April 16, 2024
June 18, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
healing time
Compare the duration of wound healing between the puncture-aspiration and Incision groups =\> The healing time is defined by the time between the abscess flattens and the moment the skin is epidermised. In this case, it involves stopping the use of nursing care and stopping dressings. Healing is checked by the investigator using a photo taken by the patient. The date of healing is then recorded by the patient in the logbook. In the event of a recurrence of the abscess, with the need for an incision following the acute episode, the healing time is added to the duration of the previous episode.
6 weeks
Secondary Outcomes (5)
Effectiveness of the 2 procedures
4 weeks
Cost analysis
6 weeks
Duration of nursing care
6 weeks
Duration of work stoppage
6 weeks
Returning to work
6 weeks
Study Arms (2)
puncture/aspiration
EXPERIMENTALThe puncture is then carried out using a 16 gauge needle. Antibiotic coverage will be offered.
abscess incision
ACTIVE COMPARATORThe incision is made in the operating room under general or local anesthesia. The intervention is carried out on an outpatient basis but if necessary, short-term hospitalization is carried out. Daily drying is then carried out with nursing care at home until healing.
Interventions
Local anesthesia is previously carried out with 2-5 cc of 1% lidocaine. The puncture is then carried out using a 16 gauge needle. Antibiotic coverage will be offered. A work stoppage is recommended until the day after the puncture/aspiration but the duration is left to the discretion of the surgeon. A visit is systematically realised 15 days after the puncture/aspiration with a recommendation for earlier consultation in the event of persistence of redness, discharge, pain or onset of fever. If these symptoms recur or persist, it is recommended to make an incision with packing. In the event of fistulization following the puncture, associated with discharge and skin necrosis, local nursing care is recommended.
This is carried out according to the habits of the department: in the operating room under general or local anesthesia or in consultation (or emergencies) under local anesthesia. The procedure is carried out on an outpatient basis but, if necessary, short-term hospitalization is carried out. Daily drying is then carried out with nursing care at home until healing. A work stoppage is recommended for a period of approximately 10 days. A visit is systematically realised 15 days after the incision with a recommendation for earlier consultation in the event of persistence of redness, discharge, pain or onset of fever. If these symptoms recur or persist, it is recommended to make an incision with packing. The definitive resection procedure is then planned 4 to 6 weeks after the initial operation if the evolution is favorable.
Eligibility Criteria
You may qualify if:
- Adult patients with a pilonidal sinus abscess
- Surgical indication for flattening the abscess
- Recurrent or de novo abscess
- Signature of consent to participate in the study
You may not qualify if:
- Skin necrosis
- Immunosuppression (drug-related or pathological) or diabetes
- Spontaneous fistulization
- Patients who do not speak French
- Pregnant and/or breastfeeding women
- Patients without social security coverage
- Person deprived of liberty by judicial or administrative decision
- Person subject to psychiatric care under duress
- Person subject to a legal protection measure
- Person unable to express consent
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHU Angers
Angers, 49000, France
Related Publications (7)
de Parades V, Bouchard D, Janier M, Berger A. Pilonidal sinus disease. J Visc Surg. 2013 Sep;150(4):237-47. doi: 10.1016/j.jviscsurg.2013.05.006. Epub 2013 Aug 1.
PMID: 23911903BACKGROUNDSegre D, Pozzo M, Perinotti R, Roche B; Italian Society of Colorectal Surgery. The treatment of pilonidal disease: guidelines of the Italian Society of Colorectal Surgery (SICCR). Tech Coloproctol. 2015 Oct;19(10):607-13. doi: 10.1007/s10151-015-1369-3. Epub 2015 Sep 16.
PMID: 26377583BACKGROUNDDoll D, Friederichs J, Boulesteix AL, Dusel W, Fend F, Petersen S. Surgery for asymptomatic pilonidal sinus disease. Int J Colorectal Dis. 2008 Sep;23(9):839-44. doi: 10.1007/s00384-008-0476-2. Epub 2008 May 20.
PMID: 18491116BACKGROUNDDoll D, Friederichs J, Dettmann H, Boulesteix AL, Duesel W, Petersen S. Time and rate of sinus formation in pilonidal sinus disease. Int J Colorectal Dis. 2008 Apr;23(4):359-64. doi: 10.1007/s00384-007-0389-5.
PMID: 18043929BACKGROUNDFahrni GT, Vuille-Dit-Bille RN, Leu S, Meuli M, Staerkle RF, Fink L, Dincler S, Muff BS. Five-year Follow-up and Recurrence Rates Following Surgery for Acute and Chronic Pilonidal Disease: A Survey of 421 Cases. Wounds. 2016 Jan;28(1):20-6.
PMID: 26824973BACKGROUNDHussain ZI, Aghahoseini A, Alexander D. Converting emergency pilonidal abscess into an elective procedure. Dis Colon Rectum. 2012 Jun;55(6):640-5. doi: 10.1097/DCR.0b013e31824b9527.
PMID: 22595842BACKGROUNDLasithiotakis K, Aghahoseini A, Volanaki D, Peter M, Alexander D. Aspiration for acute pilonidal abscess-a cohort study. J Surg Res. 2018 Mar;223:123-127. doi: 10.1016/j.jss.2017.09.051. Epub 2017 Nov 17.
PMID: 29433863BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Aurélien VENARA, PHD
University Hospital of Angers
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 16, 2024
First Posted
April 23, 2024
Study Start
March 20, 2025
Primary Completion
December 9, 2025
Study Completion
January 16, 2026
Last Updated
June 24, 2026
Record last verified: 2026-06
Data Sharing
- IPD Sharing
- Will not share
Insufficient and partial data collected