A Clinical Study on Alleviating Hemorrhoids-related Symptoms of Pelvic Radiation Therapy
ACS-RT
Anal Canal-Sparing Technique During Postoperative Pelvic Radiation Therapy for Cervical Cancer Patients to Reduce Hemorrhoids-related Symptoms: A Multicenter Randomized Clinical Trial
1 other identifier
interventional
300
1 country
1
Brief Summary
The goal of this clinical trial is to reduce the acute hemorrhoids-related symptoms for cervical cancer patients with hemorrhoids who need postoperative pelvic radiation therapy, including prolapse, local burning, bleeding, perianal pain, and other perianal discomforts. The main questions it aims to answer are: Will anal canal-sparing technique improve the quality of life for cervical cancer patients with hemorrhoids during pelvic radiation therapy? Will the radiation dose exposure to anal canal be reduced through anal canal-sparing technique? Researchers will compare the aggravation of radiation-induced hemorrhoids-related symptoms occurring from the initiation of pelvic radiation therapy until 4 weeks after its completion. Conventional postoperative treatment regimens will not be changed and researchers will only reduce the irradiated dose to anal canal which should be protected during pelvic radiation therapy. Participants will be randomly assigned with equal probability (1:1 ratio) to either: control group (conventional postoperative pelvic radiation therapy) and intervention group (anal canal-sparing pelvic radiation therapy), in either combined with brachytherapy or not. Following randomization, participants will not be informed of their group assignment until completion of the follow-up period. Notice: The treatment efficacy will not be compromised by group assignment. No additional treatment-related adverse effects will occur due to study participation. The intervention group may potentially mitigate radiotherapy-induced adverse effects.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2025
Typical duration 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
September 9, 2025
CompletedFirst Posted
Study publicly available on registry
September 16, 2025
CompletedStudy Start
First participant enrolled
September 29, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 28, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2027
September 22, 2025
September 1, 2025
2 years
September 9, 2025
September 16, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The incidence of radiation-induced hemorrhoid-related symptoms
From the initiation of pelvic radiation therapy (including BT) until 4 weeks after its completion.
Study Arms (2)
Anal Canal-Sparing Arm
EXPERIMENTALParticipants will receive pelvic radiation therapy using anal canal-sparing techniques. There will be 150 participants enrolled.
Conventional Radiation therapy Arm
NO INTERVENTIONParticipants will receive pelvic radiation therapy using standard techniques. There will be 150 participants enrolled.
Interventions
To contour anal canal and rectum separately and deliver different doses as two single OARs in pelvic radiation therapy planning.
Eligibility Criteria
You may qualify if:
- Treated with hysterectomy (including total abdominal hysterectomy, vaginal hysterectomy, radical hysterectomy, or laparoscopically assisted vaginal hysterectomy) within 6 weeks prior to study initiation.
- Histologically proven diagnosis of cervical carcinoma, including squamous cell carcinoma, adenocarcinoma, or adenosquamous carcinoma.
- Requirement for postoperative adjuvant concurrent chemoradiotherapy (CCRT).
- Age \> 18 years.
- Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1.
- History of hemorrhoids prior to radiotherapy, with no hemorrhoid-related symptoms for at least 4 weeks before radiation therapy initiation.
- Abdominal/pelvic MRI, chest CT, or PET-CT performed before surgery or study enrollment to confirm staging and exclude patients with distant metastasis.
- Adequate bone marrow, renal, and hepatic function.
- Agreement to undergo anal canal MRI before radiation therapy initiation.
- Patient must provide study-specific informed consent form (ICF) prior to study entry.
You may not qualify if:
- Cervical cancer patients who do not meet the criteria for adjuvant radiation therapy.
- Without a confirmed history of hemorrhoids.
- Patients contraindicated for MRI (e.g., due to incompatible metallic implants, claustrophobic syndrome, or other contraindications).
- Patients who refuse to undergo anal canal MRI.
- Patients with radiographically visible residual disease post-surgery requiring boost during the pelvic EBRT.
- History of other malignancies.
- Prior pelvic radiotherapy resulting in overlapping radiation fields.
- History of allergic reaction to platinum-based chemotherapy agents.
- Severe and/or active comorbidities precluding tolerance of concurrent chemoradiotherapy.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Shanghai General Hospital
Shanghai, Shanghai Municipality, 200080, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
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
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor, M.D.
Study Record Dates
First Submitted
September 9, 2025
First Posted
September 16, 2025
Study Start
September 29, 2025
Primary Completion (Estimated)
September 28, 2027
Study Completion (Estimated)
December 31, 2027
Last Updated
September 22, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will not share