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SISTER study: peer support may boost cancer treatment completion

NCT ID NCT04930159

Symptom relief Sponsor: University of Washington Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether group or one-on-one peer support helps Black patients with endometrial cancer complete their treatment and feel less isolated. About 252 participants will be randomly assigned to group support, one-on-one peer calls, or usual care. The main goal is to see if social support improves how much of the planned treatment they actually receive.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
social support (group or one-on-one peer support)
What this could lead to
If it works, this could show that structured social support helps Black patients complete their cancer treatment and feel less isolated.
What could go wrong
This is a relatively small, early-stage behavioral study. The support may not significantly improve treatment completion or social isolation, and results may not apply to other groups.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

252 people

The number who actually took part.

Started

Sep 2021

Expected to finish

Oct 2026

An estimate. End dates often move.

Lead sponsor

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

18 years and older

Sex

Female participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Adult 18 years of age or older; and 2. Self-identify as Black/African American 3. Presenting with high-risk EC established by anatomic pathology as tumor stage and grade classification by the following: 1. Pathology documentation from any hospital/clinic/medical center, and 2. FIGO Stage 1A with Grade 2, Grade 3, or Grade 4 of any histology type or 3. FIGO Stage 1A with non-endometrioid (carcinosarcoma, serous, clear cell, undifferentiated or mixed) histology 4. FIGO Stage 1B, 2, 3, or 4 of any grade or histology 5. Recurrent endometrial cancer of any stage or grade 4. Documented provider recommendation and patient plan to initiate adjuvant therapy with chemotherapy, radiation, and/or immunotherapy. Exclusion Criteria: Participants must not have any of the following exclusion criteria: 1. Newly diagnosis of FIGO Stage IA Grade 1 endometrioid adenocarcinoma 2. Previous history of other cancer diagnosis requiring chemotherapy, radiation therapy, or immunotherapy within the past 12 months; 3. Incarcerated in a detention facility or in police custody (patients wearing a monitoring device can be enrolled) at baseline/screening; 4. Contraindication to all non-surgical therapy available for endometrial cancer (i.e., chemotherapy, radiation, and immunotherapy contraindicated); 5. Enrollment into hospice prior to randomization 6. Unable to provide written informed consent in English; 7. Unable to be contacted for research surveys; 8. Recent hospitalization for psychiatric illness in the past 6 months

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Conditions

The condition(s) this trial relates to.

endometrial cancer endometrium neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Endometrial cancer

Contacts and locations

Locations

  • Fred Hutch/University of Washington Cancer Consortium

    Seattle, Washington, 98105, United States

  • Johns Hopkins University

    Baltimore, Maryland, 21218, United States

  • Louisiana State University - New Orleans

    New Orleans, Louisiana, 70112, United States

  • MedStar Health Research Institute

    Columbia, Maryland, 21044, United States

  • The University of Chicago

    Chicago, Illinois, 60637, United States

  • University Hospitals Cleveland Medical Center

    Cleveland, Ohio, 44106, United States

  • University of Alabama

    Birmingham, Alabama, 35294, United States

  • University of Arkansas for Medical Sciences

    Little Rock, Arkansas, 72205, United States

  • University of Miami

    Miami, Florida, 33136, United States

  • University of North Carolina

    Chapel Hill, North Carolina, 27599, United States

  • Weill Cornell Medicine

    New York, New York, 10021, United States

More trials for these conditions

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