NCT06663527

Brief Summary

Sitz-bath therapy with Chinese medicine has significant advantages in the management of postoperative wounds of anal fistula. This method not only ensures safety, efficacy, and cost-effectiveness, but also simplifies application. With a firm foundation in a historical heritage, this method is notable for their minimal adverse reactions. The fumigating-washing or sitz-bath therapy with Compound Phellodendron Decoction (CPD) for postoperative wounds of anal fistula has demonstrated efficacy in mitigating pain, reducing edema, curbing secretions, alleviating skin itching, and promoting wound healing processes. Despite the body of clinical research in this domain is substantial, the majority of studies have been limited to observing therapeutic outcomes. The intrinsic mechanisms by which these effects are achieved remain elusive. This study aims to unravel the potential mechanisms underpinning CPD's promotion of wound healing, focusing on the aspects of inflammation and immunity.

Trial Health

87
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
Completed

Started Oct 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

October 25, 2024

Completed
1 day until next milestone

Study Start

First participant enrolled

October 26, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 29, 2024

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2025

Completed
Last Updated

August 12, 2025

Status Verified

October 1, 2024

Enrollment Period

3 months

First QC Date

October 25, 2024

Last Update Submit

August 8, 2025

Conditions

Keywords

Anal fistula

Outcome Measures

Primary Outcomes (1)

  • The healing duration of wounds

    The healing duration of wounds, edema, exudation, and pain scores, served as the principal observation index.

    The healing duration of wounds, edema, exudation, and pain scores, served as the principal observation index.

Study Arms (2)

Study Group

EXPERIMENTAL

Study group (n=30) treated fumigating-washing therapy with the CPD

Combination Product: Fumigating-washing Therapy With CPD

Control Group

PLACEBO COMPARATOR

Control group (n=30) underwent fumigating-washing therapy with a placebo

Combination Product: fumigating-washing therapy with a placebo

Interventions

All patients underwent anal fistulectomy based on the Parks classification. For postoperative infection prophylaxis, cefuroxime was used at a dosage of 2g per dose, twice daily. Commencing the day following surgery, a fumigating-washing therapy was conducted once daily either after defecation or two hours prior to intravenous infusion. In the study group, a medical solution used for fumigating-washing therapy was prepared by blending 200 ml of CPD with 2 liters of water at 40 °C. This medicinal solution was then transferred into the reservoir of an ultrasonic atomizing fumigating-washing device (Model:TM50-C, Xuzhou Tianma Medical Equipment Factory, China) that was classified by the FDA as Class II (special controls).

Study Group

fumigating-washing therapy with a placebo

Control Group

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Anhui university of Chinese Medicine

Hefei, Anhui, 230000, China

Location

MeSH Terms

Conditions

Rectal Fistula

Condition Hierarchy (Ancestors)

Intestinal FistulaDigestive System FistulaDigestive System DiseasesIntestinal DiseasesGastrointestinal DiseasesRectal DiseasesFistulaPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
The Second Affiliated Hospital of Anhui University of Chinese Medicine

Study Record Dates

First Submitted

October 25, 2024

First Posted

October 29, 2024

Study Start

October 26, 2024

Primary Completion

February 1, 2025

Study Completion

February 1, 2025

Last Updated

August 12, 2025

Record last verified: 2024-10

Locations