Short Course Vaginal Cuff Brachytherapy in Treating Participants With Stage I-II Endometrial Cancer

NCT ID: NCT03422198

Last Updated: 2025-12-12

Study Results

Results available

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Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

188 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-02-02

Study Completion Date

2029-10-31

Brief Summary

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This randomized phase III trial studies short course vaginal cuff brachytherapy to see how well it works compared with standard of care vaginal cuff brachytherapy in treating participants with stage I-II endometrial cancer. Short course vaginal cuff brachytherapy, also known as internal radiation therapy, uses (over a shorter period) radioactive material placed directly into or near a tumor in the upper portion of the vagina to kill tumor cells.

After completion of cohort 1 (108 participants), the protocol was expended to add a second cohort of 80 additional participants, and re-opened study recruitment.

Detailed Description

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Endometrial cancer is the most common gynecologic cancer in the Western world and primarily affects postmenopausal women. The primary form of treatment is surgery, consisting of a total abdominal or laparoscopic hysterectomy and bilateral salpingo-oophorectomy. Adjuvant radiotherapy for endometrial cancer has been studied in prospective trials for at least four decades. All trials have demonstrated an improvement in local regional control. However, improvement in survival has not been observed in prospective randomized trials in early-stage patients.

There is great heterogeneity in prognoses in stage I patients. National Comprehensive Cancer Network (NCCN) guidelines consequently recommend no treatment in general for low-stage patients, adjuvant brachytherapy for patients with intermediate- and high-intermediate-risk disease, and for patients with deeply invasive tumors with high-grade lesions, external beam radiotherapy is an option (NCCN Guidelines 2016). Over the ensuing decades, there has been a shift toward increasing use of vaginal cuff brachytherapy.

This is a phase III, unblinded, randomized trial comparing an experimental arm and a control arm of vaginal cuff brachytherapy: The experimental arm will treat subjects with 2 fractions of vaginal brachytherapy. The control arm will treat subjects with standard-of-care vaginal cuff brachytherapy of 3-5 fractions. Patients will be randomized 1:1 to the different treatment arms.

After completion of cohort 1 (108 participants), the protocol was expanded to add a second cohort of 80 additional participants, and reopened study recruitment.

Cohort 1 evaluated the non-inferiority of patient Health Related Quality of Life (HRQOL) in the experimental arm compared to the control arm using the Global Health Status from the EORTC QLQ-C30. Cohort 2 will evaluate the frequency and severity of patient-reported financial toxicity in patients with early-stage endometrial cancer treated with vaginal cuff-brachytherapy (VCB) at one month post-VCB.

Conditions

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Endometrial Clear Cell Adenocarcinoma Endometrial Endometrioid Adenocarcinoma Endometrial Serous Adenocarcinoma Stage I Uterine Corpus Cancer Stage IA Uterine Corpus Cancer Stage IB Uterine Corpus Cancer Stage II Uterine Corpus Cancer Uterine Corpus Carcinosarcoma Uterine Corpus Sarcoma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Short course vaginal cuff brachytherapy

Participants undergo short course vaginal cuff brachytherapy for 2 fractions with 1 week apart.

Group Type EXPERIMENTAL

Short course vaginal cuff brachytherapy

Intervention Type RADIATION

Undergo short course vaginal cuff brachytherapy

Vaginal cuff brachytherapy

Participants undergo standard of care vaginal cuff brachytherapy for 3-5 fractions over no more than 3 weeks.

Group Type ACTIVE_COMPARATOR

Vaginal Cuff Brachytherapy

Intervention Type RADIATION

Undergo standard of care vaginal cuff brachytherapy

Interventions

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Vaginal Cuff Brachytherapy

Undergo standard of care vaginal cuff brachytherapy

Intervention Type RADIATION

Short course vaginal cuff brachytherapy

Undergo short course vaginal cuff brachytherapy

Intervention Type RADIATION

Other Intervention Names

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best practice standard of care standard therapy BRACHYTHERAPY internal radiation Internal Radiation Brachytherapy Internal Radiation Therapy Radiation Brachytherapy

Eligibility Criteria

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Inclusion Criteria

* Histologically confirmed endometrial carcinoma: endometrioid type, serous, and clear cell, to include tumors originating in the cervix, but are primarily located in the uterus, and for whom vaginal cuff brachytherapy is indicated. Carcinosarcoma and other sarcomas are permitted; Federation of Gynecology and Obstetrics (FIGO) stage I and stage II, with one of the following combinations of stage and grade:

* Stage IA, grade 1 with LVSI, 2, 3
* Stage IB, grades 1-3
* Stage II, grades 1-3
* Stage IIIA, grades 1-3, not receiving EBRT as part of adjuvant therapy.
* Participants post-hysterectomy and free from residual disease.
* World Health Organization (WHO)/Eastern Cooperative Oncology Group (ECOG)-performance status 0-2.
* Able to provide informed consent and willing to sign an approved consent form that conforms to federal and institutional guidelines.
* Life expectancy of \>2 years.

Exclusion Criteria

* Stages of endometrial carcinoma other than described.
* Previous pelvic radiotherapy.
* Concurrent malignancy requiring non-protocol anti-cancer treatment other than surgery.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Huntsman Cancer Institute

OTHER

Sponsor Role collaborator

University of Utah

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Cristina DeCesaris, MD

Role: PRINCIPAL_INVESTIGATOR

Huntsman Cancer Institute/ University of Utah

Locations

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Stanford Cancer Center

Palo Alto, California, United States

Site Status COMPLETED

Loyola University Medical Center

Maywood, Illinois, United States

Site Status RECRUITING

MD Anderson

Houston, Texas, United States

Site Status RECRUITING

Huntsman Cancer Institute/University of Utah

Salt Lake City, Utah, United States

Site Status RECRUITING

Intermountain Medical Center / LDS Hospital

Salt Lake City, Utah, United States

Site Status COMPLETED

Countries

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United States

Central Contacts

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Rachel Kingsford

Role: CONTACT

801-585-0115

Facility Contacts

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Carly Quick, RN

Role: primary

708-327-3255

Lorena Leon

Role: backup

464-220-9395

Mathew G Geena

Role: primary

713-792-4594

Rachel Kingsford

Role: primary

801-585-0115

References

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Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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NCI-2018-00011

Identifier Type: REGISTRY

Identifier Source: secondary_id

HCI103841

Identifier Type: -

Identifier Source: org_study_id

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