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PROfiling Based Endometrial Cancer Adjuvant Therapy

Randomized Phase III Trial of Molecular Profile-based Versus Standard Recommendations for Adjuvant Therapy for Women With Early Stage Endometrioid Adenocarcinoma

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05179447
Acronym
PROBEAT
Enrollment
590
Registered
2022-01-05
Start date
2022-01-24
Completion date
2027-01-01
Last updated
2025-04-01

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

Conditions

Endometrial Cancer Stage I, Endometrial Cancer Stage II

Brief summary

This is a prospective, multicenter, randomized phase III trial among women with endometrioid adenocarcinoma with high-intermediate and intermediate risk features to investigate the role of integrated genomic-pathologic classification to determine if participants should receive no adjuvant therapy, vaginal brachytherapy, external beam radiotherapy or chemo-radiation therapy based on molecular features as compared to standard radiation therapy.

Detailed description

Adjuvant therapy for women with endometrial cancer has increasingly been tailored to prognostic factors to prevent overtreatment and select those women for adjuvant treatment who will have a clinically relevant reduction of the risk of relapse by the adjuvant treatment. Risk profiles have traditionally been based on clinicopathological factors such as age, stage, grade, Lymph-Vascular Space Invasion (LVSI) and depth of invasion. Newer, both molecular-genetic (the cancer genome atlas subgroups) have become available which are strongly related to outcomes and risk of cancer spread. Based on 2022 National Comprehensive Cancer Network (NCCN) guideline and the ongoing Portec-4a trial, this randomized trial using integrated genomic-pathologic classification to assign adjuvant treatment for women with stage I-II high-intermediate and intermediate risk endometrioid adenocarcinoma.

Interventions

Internal radiation of the vaginal vault using a vaginal cylinder. For brachytherapy administered alone it is recommended: suggested dose is either 3 fractions of 7 Gy or 5 fractions of 6 Gy. For brachytherapy administered after completion of External beam radiotherapy (EBRT): Total dose should aim to be 65 Gy, and suggested dose is 2-3 fractions of 5-6 Gy

RADIATIONExternal beam radiotherapy

External beam pelvic radiotherapy on a linear accelerator, 45-50 Gy in 25-28 out-patients sessions

OTHERObservation

No adjuvant therapy, but active follow-up and quality of life questionnaires as in the groups who have adjuvant treatment

COMBINATION_PRODUCTChemoradiation therapy

4 adjuvant cycles carboplatin and paclitaxel followed by External beam pelvic radiotherapy (45-50 Gy )

Sponsors

Tongji Hospital
CollaboratorOTHER
Qilu Hospital of Shandong University
CollaboratorOTHER
Obstetrics & Gynecology Hospital of Fudan University
CollaboratorOTHER
Sun Yat-sen University
CollaboratorOTHER
Peking University People's Hospital
CollaboratorOTHER
Shanghai First Maternity and Infant Hospital
CollaboratorOTHER
Xiangya Hospital of Central South University
CollaboratorOTHER
Anhui Provincial Cancer Hospital
CollaboratorOTHER
Ningbo Women & Children's Hospital
CollaboratorOTHER
Ningbo No. 1 Hospital
CollaboratorOTHER
Women's Hospital School Of Medicine Zhejiang University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Surgery consisting of a total abdominal or laparoscopic hysterectomy, bilateral salpingectomy, pelvic lymphadenectomy or sentinel lymph node mapping and dissection, with or without para-aortic lymphadenectomy, oophorectomy 2. Histologically confirmed endometrioid type endometrial carcinoma, International Federation of Gynecology and Obstetrics (FIGO) 2009 stage I, with one of the following combinations of stage and grade: Stage I A, grade 3 Stage I B, grade 1 or 2 Stage I B, grade 3 Stage II 3. World Health Organization (WHO)-performance status 0-2 4. Written informed consent

Exclusion criteria

1. With residual disease 2. Any other stage and type of endometrial carcinoma 3. Histological types serous carcinoma or clear cell carcinoma (at least 10% if mixed type), or undifferentiated or neuroendocrine carcinoma 4. Uterine sarcoma (including carcinosarcoma) 5. Previous malignancy (except for non-melanomatous skin cancer) 6. Previous pelvic radiotherapy 7. Expected interval between the operation and start of radiotherapy exceeding 8 weeks

Design outcomes

Primary

MeasureTime frameDescription
Total recurrence3 yearsVaginal, pelvic or distant recurrence as first failure

Secondary

MeasureTime frameDescription
Relapse-free survival3 years, 5 yearsRelapse-free survival (survival without relapse)
Survival3 years, 5 yearsOverall survival (all-cause death)
Health-related cancer-specific quality of life3 years, 5 yearsQuality of Life Core Questionnaire (QLQC-30) - clinically relevant changes on Quality of Life Core Questionnaire-30 functioning scales, general quality of life and general cancer symptoms, quite a bit/very much vs no or mild symptoms
Endometrial cancer related health care costs3 years, 5 yearsAll hospital based health care costs used with primary treatment or during followup for treatment of adverse events and/or treatment for relapse
Adverse events3 years, 5 yearsTreatment-related symptoms according to CTCAE v 5.0

Other

MeasureTime frameDescription
Recurrence (vaginal and total) per risk profile3 years, 5 yearsVaginal, pelvic and distant relapse split by risk profile and compared between the 2 arms

Countries

China

Contacts

Primary ContactXinyu Wang, MD
wangxinyu@zju.edu.cn+86-571-87061501
Backup ContactYang Li, PhD
li_yang@zju.edu.cn+86-571-87061501

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026