Could a shorter radiation course be just as good for endometrial cancer?
NCT ID NCT03422198
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares a shorter course of vaginal cuff brachytherapy (internal radiation) to the standard longer course for people with stage I-II endometrial cancer. The main goal is to see if the shorter treatment improves quality of life and reduces financial burden, while still controlling the cancer. About 188 participants will be enrolled.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Vaginal cuff brachytherapy (internal radiation)
- What this could lead to
- If successful, this could offer a shorter, more convenient radiation treatment for early endometrial cancer, reducing side effects and improving quality of life.
- What could go wrong
- This is a Phase 3 trial, but it's relatively small (188 participants). The shorter course may not control cancer as well as the standard, and results may not apply to all types of endometrial cancer.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 188 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2018
- Expected to finish
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Oct 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
3 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Huntsman Cancer Institute/University of Utah
RECRUITINGSalt Lake City, Utah, 84112, United States
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Intermountain Medical Center / LDS Hospital
COMPLETEDSalt Lake City, Utah, 84143, United States
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Loyola University Medical Center
RECRUITINGMaywood, Illinois, 60153, United States
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MD Anderson
RECRUITINGHouston, Texas, 77030, United States
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Stanford Cancer Center
COMPLETEDPalo Alto, California, 94304, United States
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