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New combo therapy aims to save rectums from surgery

NCT ID NCT04703101

Disease control Sponsor: Jonsson Comprehensive Cancer Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial tests whether a short course of radiation followed by chemotherapy can shrink advanced rectal tumors enough to avoid surgery. About 25 people with stage II or III rectal cancer will receive the treatment. The goal is to preserve the rectum and improve quality of life.

What this could mean

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

Active substance
short-course radiation therapy followed by chemotherapy (FOLFOX or CapeOX)
What this could lead to
If successful, this approach could allow many patients with locally advanced rectal cancer to avoid major surgery and keep their rectum, improving quality of life.
What could go wrong
This is a very early phase 1 trial with only 25 participants, so results are preliminary. The treatment may not work for everyone, and there are risks from radiation and chemotherapy side effects.

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

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 25 people

The number the study aims to enrol. It can still change while the study runs.

Started

Feb 2021

Expected to finish

Oct 2027

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

Anyone

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: * Histologically confirmed rectal adenocarcinoma * Patients must have stage II (cT3, cN0) or stage III (cT1-3, cN1-3) tumor as staged by MRI * No evidence of metastatic disease * Resectable primary lesion * Karnofsky performance status (KPS) \>= 70 or Eastern Cooperative Oncology Group (ECOG) 0-2 * Absolute neutrophil count (ANC) \> 1.5 cell/mm\^3 * Hemoglobin (Hgb) \> 8.0 gm/dL * Platelets (PLT) \> 150,000/mm\^3 * Total bilirubin \< or equal to 1.5 x upper limit of normal * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \< or equal to three times upper limit of normal * If a woman is of childbearing potential, a negative serum pregnancy test must be documented prior to initiation of radiation therapy Exclusion Criteria: * Active treatment of a separate malignancy * Distant metastatic disease as assessed by staging positron emission tomography (PET)/computed tomography (CT) or CT of the chest and abdomen within 6 weeks of starting radiation therapy * Prior radiotherapy to the region of the study cancer that would result in overlap of radiation therapy fields * Pregnant and/or breastfeeding * Medical/psychological contraindication to MRI

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Conditions

The condition(s) this trial relates to.

rectal cancer rectal carcinoma rectal neoplasm rectum adenocarcinoma

As listed by the trial registrant

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

Locally advanced rectal carcinoma Rectal adenocarcinoma Stage II rectal cancer ajcc V8 Stage IIA rectal cancer ajcc V8 Stage IIB rectal cancer ajcc V8 Stage IIC rectal cancer ajcc V8 Stage III rectal cancer ajcc V8 Stage IIIA rectal cancer ajcc V8 Stage IIIB rectal cancer ajcc V8 Stage IIIC rectal cancer ajcc V8

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • UCLA / Jonsson Comprehensive Cancer Center

    RECRUITING

    Los Angeles, California, 90095, United States

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