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PORTEC-4a: Randomised trial of standard or molecular profile-based recommendation for radiotherapy after surgery for women with early stage endometrial cancer

PORTEC-4a: Randomised Phase III Trial of molecular profile-based versus standard recommendations for adjuvant radiotherapy for women with early stage endometrial cancer

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN11659025
Enrollment
550
Registered
2016-06-24
Start date
2016-06-01
Completion date
Unknown
Last updated
2025-01-06

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

Conditions

Endometrial cancer Cancer

Interventions

Participants are randomly allocated to one of two arms: 1. Standard arm: Vaginal brachytherapy (3 short outpatient internal radiation treatments over 2 weeks to the vaginal cuff), based on PORTEC-2

Sponsors

Leiden University Medical Center
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: Histologically confirmed endometrioid type endometrial carcinoma, FIGO 2009 stage I, with one of the following combinations of stage, grade, age, and LVSI: 1. Stage IA, grade 3 (any age, with or without LVSI) 2. Stage IB, grade 1 or 2 and age >60 years 3. Stage IB, grade 1-2 with documented LVSI 4. Stage IB, grade 3 without LVSI 5. Stage II (microscopic), grade 1 WHO-performance status 0-2 Written informed consent

Exclusion criteria

Exclusion criteria: 1. Any other stage and type of endometrial carcinoma 2, Histological types papillary serous carcinoma or clear cell carcinoma (at least 10% if mixed type) 3. Undifferentiated or neuroendocrine carcinoma 4. Uterine sarcoma (including carcinosarcoma) 5. Previous malignancy (except for non-melanomatous skin cancer) < 5 yrs 6. Previous pelvic radiotherapy 7. Interval between the operation and start of radiotherapy exceeding 8 weeks Updated 17/08/2021: 7. Expected interval between the operation and start of radiotherapy exceeding 8 weeks

Design outcomes

Primary

MeasureTime frame
Vaginal recurrence, measured during each follow-up visit by vaginal inspection and pelvic examinations (3 monthly first 2 years, 6 monthly until 5th year) and confirmation by histology in case of suspected recurrence

Secondary

MeasureTime frame
1. Recurrence-free survival - regular follow-up visits (3 monthly first 2 years, 6 monthly until 5th year) with history focused on symptoms and side effects and pelvic examination; further evaluation in case of suspected recurrence locally or at distant sites by (PET)-CT and/or MRi scanning and histological confirmation. In case of death, information on date and cause of death are recorded 2. 5-year vaginal control - local recurrence free at 5 years either without any evidence of recurrence or after treatment for vaginal recurrence 3. Quality of life- Patients receive a QoL questionnaire consisting of EORTC QLQ-C30 and EN24 at baseline (after surgery, before study treatment or observation), at 6 weeks after randomisation, and at 6, 12, 18, 24, 36 and 60 months after randomisation 4. Side effects- Regular follow-up visits (3 monthly first 2 years, 6 monthly until 5th year) with history focused on symptoms and side effects – recording of adverse events according to CTCAEv 4.0 5. Health care costs - EC-related healthcare costs will include the costs of the randomised care and care associated with (serious) adverse events. Healthcare use over the follow-up period will be converted to costs using standard prices, discounted over time. Costs will be evaluated at each follow-up and at recurrence by recording hospital admissions, surgeries, etc over the past follow-up period

Countries

Austria, Belgium, Czech Republic, France, Germany, Ireland, Netherlands, Switzerland

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 21, 2026