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RecruitingInterventionalPhase 2

A Phase II Study of Tailored Adjuvant Therapy in POLE-Mutated and p53-Wildtype/NSMP Early Stage Endormetrial Cancer (RAINBO BLUE & TAPER)

NCT ID: NCT05640999Sponsor: Canadian Cancer Trials GroupLast updated: 2026-06-09

Summary

This protocol tests de-escalated adjuvant treatment in patients with POLE-mutated or p53wt/NSMP (p53 wildtype/no specific molecular profile) early-stage endometrial cancer (EC). Patients may be enrolled in one of two sub-studies * EN10.A/RAINBO BLUE: POLE-mutated EC * EN10.B/TAPER: p53 wildtype / NSMP EC

Detailed description

This study is being done in order to find out if this new approach is better or worse than the usual approach for early-stage endometrial cancer. The usual approach is defined as the care most people get for early-stage endometrial cancer. The usual approach for patients who are not in a study is treatment with surgery. Tissue that is removed as part of this procedure is analyzed in the pathology laboratory to guide the doctor to decide whether or not additional treatment such as radiation and or chemotherapy should be recommended.

Arms & interventions

  • RadiationVaginal brachytherapy

    Vaginal brachytherapy should be delivered using a vaginal cylinder, or alternatively ovoids

  • RadiationAdjuvant radiotherapy (EBRT +/- brachytherapy)

    Treatment is to be delivered using 4-18 MV photons. MV, kV or CBCT imaging capabilities are required. Planning systems with capability for DICOM data transfer must be used.

  • OtherObservation

    Observation

Outcome measures

Primary

  • Estimate the rate of pelvic recurrence at 3 years in patients who are treated with de-escalated adjuvant treatment directed by tumour molecular status

    Time frame: 3 years

Secondary

  • Estimate the rate of isolated vaginal recurrence at 3 years

    Time frame: 3 years

  • Estimate the rate of para-aortic recurrence at 3 years

    Time frame: 3 years

  • Estimate the rate of distant metastasis at 3 years

    Time frame: 3 years

  • Estimate recurrence-free survival

    Time frame: 9 years

  • Estimate endometrial cancer-specific survival

    Time frame: 9 years

  • Estimate overall survival

    Time frame: 9 years

  • Describe the impact of molecular classification on fear of recurrence by Fear of Recurrence Inventory

    Time frame: 9 years

Eligibility criteria

Sex: FemaleAge: 18 Years and olderHealthy volunteers: No
Inclusion Criteria: * Patients must have had surgery consisting of hysterectomy and bilateral salpingo-oophorectomy. Lymph node dissection can be performed as per institutional standards. There must be no macroscopic residual disease after surgery. * Patients must have histologically confirmed Stage I to III endometrial carcinoma which can be endometrioid, serous, clear cell, un/dedifferentiated, carcinosarcoma or mixed. * Patients' Eastern Cooperative Group (ECOG) performance status must be 0, 1, or 2. * HIV-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial. * Patients' age must be ≥ 18 years. * Patient consent must be appropriately obtained in accordance with applicable local and regulatory requirements. * Patient is able (i.e. sufficiently fluent) and willing to complete the patient-reported outcomes (PRO) questionnaires in either English, French or a validated language * Patients must be accessible for treatment and follow-up. Patients enrolled on this trial must be treated and followed at the participating centre * Protocol treatment is to begin within 10 weeks of hysterectomy/bilateral salpingo-oophorectomy Exclusion Criteria: * Prior Neoadjuvant chemotherapy for current endometrial cancer diagnosis. * Prior pelvic radiation. * Patients with a history of other malignancies, except: carcinoma in-situ without evidence of invasive disease when resected, adequately treated non-melanoma skin cancer, or other tumours curatively treated with no evidence of disease for ≥ 5 years. * Clinical evidence of distant metastasis as determined by pre-surgical or post-surgical imaging (CT scan of chest, abdomen and pelvis or whole-body PET-CT scan) * Patients with a documented positive surgical margin. * Patients with a documented positive peritoneal washings, if performed.

Study locations (68)

Alaska Womens Cancer Care

Anchorage, Alaska, 99508

Recruiting
Melissa Hardesty · Contact

University of Arizona Cancer Center

Tucson, Arizona, 85719

Recruiting
Marina Miller · Contact

Cedars-Sinai Medical Center

Los Angeles, California, 90048

Recruiting
Andrew Li · Contact

Huntington Memorial Hospital

Pasadena, California, 91105

Recruiting
Andrew Li · Contact

Sutter Medical Center Sacramento

Sacramento, California, 95816

Recruiting
Anna Likhacheva · Contact

UCHealth University of Colorado Hospital

Aurora, Colorado, 80045

Recruiting
Bradley Corr · Contact

AdventHealth Porter

Denver, Colorado, 80210

Recruiting
Neil Phippen · Contact

University of Miami School of Medicine

Miami, Florida, 33136

Recruiting
Joseph Pearson · Contact

Sarasota Memorial Hospital - Venice

N. Venice, Florida, 34275

Recruiting
Beverly Long · Contact

Florida Cancer Specialists - Sarasota Downtown

Sarasota, Florida, 34236

Recruiting
Beverly Long · Contact

First Physicians Group-Sarasota

Sarasota, Florida, 34239

Recruiting
Beverly Long · Contact

Sarasota Memorial Hospital

Sarasota, Florida, 34239

Recruiting
Beverly Long · Contact

Sarasota Memorial Health Care Centre

Sarasota, Florida, 34243

Recruiting
Beverly Long · Contact

Florida Cancer Specialists - Venice Pinebrook

Venice, Florida, 34275

Recruiting
Beverly Long · Contact

Grady Health System

Atlanta, Georgia, 30303

Recruiting
Jill Remick · Contact

Emory University Hospital Midtown

Atlanta, Georgia, 30308

Recruiting
Jill Remick · Contact

Piedmont Hospital

Atlanta, Georgia, 30309

Recruiting
Leda Gattoc · Contact

Emory University Hospital Winship Cancer Institute

Atlanta, Georgia, 30322

Recruiting
Jill Remick · Contact

Emory Saint Josephs Hospital

Atlanta, Georgia, 30342

Recruiting
Jill Remick · Contact

Emory Decatur Hospital

Decatur, Georgia, 30033

Recruiting
Jill Remick · Contact

Northwestern University

Chicago, Illinois, 60611

Recruiting
Dario Roque · Contact

Northwestern Medicine Orland Park

Orland Park, Illinois, 60462

Recruiting
Dario Roque · Contact

Northwestern Medicine Cancer Center Warrenville

Warrenville, Illinois, 60555

Recruiting
Dario Roque · Contact

Ascension Saint Vincent Indianapolis Hospital

Indianapolis, Indiana, 46260

Recruiting
Megan Buechel · Contact

Norton Hospital Pavilion and Medical Campus

Louisville, Kentucky, 40202

Recruiting
Monica Vetter · Contact

Norton Suburban Hospital and Medical Campus

Louisville, Kentucky, 40207

Recruiting
Monica Vetter · Contact

University Medical Center New Orleans

New Orleans, Louisiana, 70112

Recruiting
Tara Castellano · Contact

Massachusetts General Hospital Cancer Center

Boston, Massachusetts, 02114

Recruiting
Andrea Russo · Contact

Baystate Medical Center

Springfield, Massachusetts, 01199

Recruiting
Tashanna Myers · Contact

UMass Memorial Medical Centre

Worcester, Massachusetts, 01605

Recruiting
Susan Zweizig · Contact

Washington University School of Medicine

St Louis, Missouri, 63110

Recruiting
Premal Thaker · Contact

Nebraska Methodist Hospital

Omaha, Nebraska, 68114

Recruiting
Brent Tierney · Contact

Womens Cancer Center of Nevada

Las Vegas, Nevada, 89106

Recruiting
Nicola Spirtos · Contact

Sidney Kimmel Cancer Center Washington Township

Sewell, New Jersey, 08080

Recruiting
Mitchell Edelson · Contact

Mount Sinai Chelsea

New York, New York, 10011

Recruiting
Caitlin Carr · Contact

Mount Sinai Hospital

New York, New York, 10029

Recruiting
Caitlin Carr · Contact

Upstate Cancer Center Radiation Oncology at Oswego

Oswego, New York, 13126

Recruiting
Mary Cunningham · Contact

State University of New York

Syracuse, New York, 13210

Recruiting
Mary Cunningham · Contact

Upstate Cancer Center at Hill Radiation Oncology

Syracuse, New York, 13210

Recruiting
Mary Cunningham · Contact

Upstate Cancer Center at Verona

Verona, New York, 13478

Recruiting
Mary Cunningham · Contact

UNC Lineberger Comprehensive Cancer Center

Chapel Hill, North Carolina, 27599

Recruiting
Olivia Lara · Contact

Duke University Medical Center

Durham, North Carolina, 27710

Recruiting
Angeles Secord · Contact

Duke Womens Cancer Care Raleigh

Raleigh, North Carolina, 27607

Recruiting
Angeles Secord · Contact

UHHS-Chagrin Highlands Medical Center

Beachwood, Ohio, 44122

Recruiting
Sarah Lynam · Contact

Case Western Reserve University

Cleveland, Ohio, 44106

Recruiting
Sarah Lynam · Contact

Ohio State University Comprehensive

Columbus, Ohio, 43210

Recruiting
Casey Cosgrove · Contact

UH Seidman Cancer Center

Mentor, Ohio, 44060

Recruiting
Sarah Lynam · Contact

University Hospitals Parma Medical Center

Parma, Ohio, 44129

Recruiting
Sarah Lynam · Contact

University of Oklahoma Health Sciences Center

Oklahoma City, Oklahoma, 73104

Recruiting
Christina Washington · Contact

Providence Portland Medical Centre

Portland, Oregon, 97213

Recruiting
Alison Conlin · Contact

Providence Saint Vincent Medical Center

Portland, Oregon, 97225

Recruiting
Alison Conlin · Contact

Penn State Milton S Hershey Medical Center

Hershey, Pennsylvania, 17033

Recruiting
Shaina Bruce · Contact

Paoli Memorial Hospital

Paoli, Pennsylvania, 19301

Recruiting
Paul Gilman · Contact

Thomas Jefferson University

Philadelphia, Pennsylvania, 19107

Recruiting
Mitchell Edelson · Contact

Asplundh Cancer Pavilion

Willow Grove, Pennsylvania, 19090

Recruiting
Mitchell Edelson · Contact

Lankenau Medical Center

Wynnewood, Pennsylvania, 19096

Recruiting
Paul Gilman · Contact

Women and Infants Hospital

Providence, Rhode Island, 02905

Recruiting
Matthew Oliver · Contact

M.D. Anderson Cancer Center

Houston, Texas, 77030

Recruiting
Ann Klopp · Contact

Farmington Health Centre

Farmington, Utah, 84025

Recruiting
Cristina DeCesaris · Contact

University of Utah Sugarhouse Health Centre

Salt Lake City, Utah, 84106

Recruiting
Cristina DeCesaris · Contact

Huntsman Cancer Institute University of Utah

Salt Lake City, Utah, 84112

Recruiting
Cristina DeCesaris · Contact

University of Vermont Medical Center

Burlington, Vermont, 05401

Recruiting
Puyao Li · Contact

University of Vermont and State Agricultural College

Burlington, Vermont, 05405

Recruiting
Puyao Li · Contact

University of Virginia Cancer Center

Charlottesville, Virginia, 22908

Recruiting
Kara Romano · Contact

Virginia Commonwealth University

Richmond, Virginia, 23298

Recruiting
Emma Fields · Contact

Swedish Medical Center First Hill

Seattle, Washington, 98122

Recruiting
Charles Drescher · Contact

Saint Vincent Hospital Cancer Center Green Bay

Green Bay, Wisconsin, 54301

Recruiting
Matthew Ryan · Contact

Medical College of Wisconsin

Milwaukee, Wisconsin, 53226

Recruiting
William Bradley · Contact