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Online Adaptive Radiotherapy Cervical Cancer With Reduced Margin for Cervical Cancer

A Prospective Study to Evaluate Online Adaptive Radiotherapy in Cervical Cancer With Reduced Margin

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05880485
Enrollment
30
Registered
2023-05-30
Start date
2023-02-02
Completion date
2026-11-06
Last updated
2026-06-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Uterine Cervical Neoplasm

Keywords

Uterine Cervical Neoplasm, Online Adaptive Radiotherapy

Brief summary

Online adaptive radiotherapy (oART) has demonstrated to be feasible to reduce planning target volume (PTV) margins for cervical cancer. To explore the value of reduced margins in oART for cervical cancer, we conducted a prospective clinical trial to determine the clinical efficacy and toxicity of reduced margins.

Detailed description

This is an investigator-initiated efficacious, single-center, open-label clinical trial study. This study hypothesizes that the use of reduced PTV margins in oART for cervical cancer could decrease toxicity and achieve more accurate dosimetric coverage. A dose of 50.4 Gy is delivered to clinical target volume (CTV) with reduced margin oART. Patients receive cisplatin based concurrent chemotherapy. The primary endpoint is acute toxicity.

Interventions

PTV with 5-10 margins covers CTV

Sponsors

Peking Union Medical College Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Patients must be informed of the investigational nature of this study and give written informed consent before treatment. 2. Age ≥18 years and ≤ 75 years. 3. Patients with newly histologically confirmed cervical cancer, including squamous cell carcinoma, adenocarcinoma and adenosquamous carcinoma, et al. 4. No evidence of para-aortic metastatic lymph nodes (MLNs) and inguinal lymph nodes on CT, MRI or positron emission tomograph (PET)/CT. 5. No contraindications to CT scanning. 6. No evidence of distant metastasis (FIGO stage IVB). 7. Adequate marrow: neutrophile granulocyte count ≥1.5\*10\^9/L, hemoglobin ≥ 80 g/L, platelet count ≥100\*10\^9/L. 8. Normal liver and kidney function: Creatinine (Cr) \< 1.5 mg/dl, Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST) \< 2\*upper limit of normal (ULN).

Exclusion criteria

1. With common iliac MLNs. 2. Tumor extended to the lower third of the vagina. 3. Tumor spread to mucosa of the bladder or rectum. 4. Prior surgery (including pelvic or para-aortic lymph nodes resection, except for tumor biopsy), radiotherapy or chemotherapy to primary tumor or nodes. 5. Prior malignancy. 6. History of previous radiotherapy to the abdomen or pelvis. 7. Pregnancy or lactation. 8. Active inflammatory bowel disease, or history of severe stomach or duodenal ulcer. 9. Active infection with fever. 10. Patients with unacceptable risk that intracavitary brachytherapy can not be conducted. 11. Any severe disease which may bring unacceptable risk or affect the compliance of the trial, for example, unstable cardiac disease requiring treatment, renal disease, chronic hepatitis, diabetes with poor control, and emotional disturbance.

Design outcomes

Primary

MeasureTime frameDescription
Patient-reported acute toxicityFrom the start of treatment to 3 months after treatmentPatient-reported acute toxicity evaluated with European Organization for Research and Treatment of Cancer Quality of Life C30 (EORTC QLQ-C30) 3.0 questionnaire
Physician-reported acute toxicityFrom the start of treatment to 3 months after treatmentPhysician-reported acute toxicity evaluated with Common Terminology Criteria for Adverse Events (CTCAE) 5.0

Secondary

MeasureTime frameDescription
Late toxicity evaluated with Radiation Therapy Oncology Group (RTOG)/EORTC late radiation morbidity scoring scheme3-yearEvaluated with Radiation Therapy Oncology Group (RTOG)/EORTC late radiation morbidity scoring scheme
The irradiated doses of organs at riskThrough study completion, an average of eight monthThe organs at risk includes bladder, rectum, bone marrow, femur head left, femur head right and bowel that may be irradiated near the target volume
The dose coverage of target volume as assessed by planing tumor volume V100%Through study completion, an average of eight monthPlaning tumor volume V100%, defined as the planing tumor volume receiving at least 100% of the prescribed dose (V100%), is used to evaluate the dose coverage of target volume.
Target volume contouring accuracyThrough study completion, an average of eight monthFor every target in each fraction, the evaluation of accuracy for target contouring are categorized as follow: no edits, minor edits, moderate edits, major edits and not applicable.
Response evaluation evaluated with RECIST 1.1One month after treatmentEvaluated with RECIST 1.1
Movement of the uterus during per radiotherapy fractionsThrough study completion, an average of eight monthThe pre- and post-treatment CBCT scans will be obtained during per treatment. The uterus intra-fractional motion were evaluated by comparison of uterus centroid from pre-treatment CBCT and uterus centroid from post-treatment images.
Movement of the cervix during per radiotherapy fractionsThrough study completion, an average of eight monthThe pre- and post-treatment CBCT scans will be obtained during per treatment. The cervix intra-fractional motion were evaluated by comparison of cervix centroid from pre-treatment CBCT and cervix centroid from post-treatment images.
Progression-free survival2-yearProgression-free survival is defined as the time from randomization to disease progression or death from any cause, whichever is first.
Personalized margin for cervical cancerSix month after treatmentPre- and post-treatment images are uploaded to the online adaptive radiotherapy simulator to re-delineate the target volume and determine the personalized margin range.

Countries

China

Contacts

STUDY_CHAIRFuquan Zhang, M.D.

Peking Union Medical College Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 9, 2026