Completed PHASE4 INTERVENTIONAL 2-arm NCT04681443

Crystallized Phenol Treatment in Pilonidal Sinus

Factors Affecting Outcomes of Crystallized Phenol Application in the Treatment of Pilonidal Sinus Disease

Sponsor: Gulhane Training and Research Hospital

Conditions Pilonidal Sinus Without Abscess Pilonidal Sinus of Natal Cleft

Interventions Crystallized phenol application

Updated 6 times since 2021 Last updated: Mar 16, 2022 Started: Jan 1, 2018 Primary completion: Dec 31, 2021 Completion: Dec 31, 2021

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE4 trial investigates Pilonidal Sinus Without Abscess and Pilonidal Sinus of Natal Cleft and is currently completed. Gulhane Training and Research Hospital leads this study, which shows 6 recorded versions since 2018 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

6 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE4
Sep 2024 — Sep 2025 [monthly]

Completed PHASE4
Jul 2024 — Sep 2024 [monthly]

Completed PHASE4
Apr 2022 — Jul 2024 [monthly]

Completed PHASE4

Status: Recruiting → Completed
Mar 2021 — Apr 2022 [monthly]

Recruiting PHASE4

▶ Show 1 earlier version

Jan 2021 — Mar 2021 [monthly]

Recruiting PHASE4

First recorded

Jan 2018

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Gulhane Training and Research Hospital

Data source: Gulhane Training and Research Hospital

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Ankara, Turkey (Türkiye)