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Online Adaptive Radiotherapy for Postoperative Treatment of Endometrial and Cervical Cancer

A Prospective Study to Evaluate Online Adaptive Radiotherapy in Postoperative Treatment of Endometrial and Cervical With Reduced Margin

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05869123
Enrollment
17
Registered
2023-05-22
Start date
2022-10-20
Completion date
2026-09-03
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

Endometrial Neoplasms, Uterine Cervical Neoplasm

Keywords

Uterine Cervical Neoplasm, Endometrial Neoplasms, Online Adaptive Radiotherapy, Adjuvant Radiotherapy

Brief summary

Online adaptive radiotherapy (oART) has demonstrated to be feasible to reduce planning target volume (PTV) margins for postoperative treatment of endometrial and cervical cancer. To explore the value of reduced margins in oART for postoperative treatment of endometrial and 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 postoperative treatment of endometrial and cervical cancer could decrease toxicity and achieve more accurate dosimetric coverage. A dose of 45 or 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. The first 10 patients were included in the study that have demonstrated the feasibility of reducing the margin (ClinicalTrials.gov ID: NCT05682950).

Interventions

PTV with 5 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 70 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. Postoperative endometrial and cervical cancer patients with pathologically confirmed no residual tumor at the resection margin and no evidence of distant metastasis (FIGO stage IVB). 3. Pathological findings indicate risk factors and adjuvant radiotherapy are prescribe. 4. Karnofsky score ≥ 70. 5. Subjects aged ≥ 18 years and ≤ 70 years. 6. No evidence of para-aortic metastatic lymph nodes. 7. No contraindications to CT scanning. 8. Subjects must be able to cooperate in completing the entire study. 9. Adequate marrow: neutrophile granulocyte count ≥1.5\*10\^9/L, hemoglobin ≥ 80 g/L, platelet count ≥100\*10\^9/L. 10. 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. Subjects who have received prior pelvic radiotherapy. 2. Subjects with other primary malignancies. 3. Subjects with contraindications to radiotherapy, as determined by the investigators. 4. 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. 5. Active infection with fever. 6. Active inflammatory bowel disease.

Design outcomes

Primary

MeasureTime frameDescription
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 dose coverage of target volume as assessed by planing tumor volume V100%Through study completion, an average of five 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 automatically contouring accuracyThrough study completion, an average of five 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.
Organs at risk contouring accuracyThrough study completion, an average of five monthFor every organs at risk in each fraction, the evaluation of accuracy for organs at risk contouring are categorized as follows: no edits, minor edits, moderate edits, major edits and not applicable.

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