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Metabolic MRI may reveal hidden cancer responses and spare patients from surgery

NCT ID NCT07730541

Knowledge-focused Sponsor: Chang Gung Memorial Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 28, 2026 · Last updated Jul 29, 2026 · Updated 1 time

Summary

This trial tests whether a new type of MRI, called hyperpolarized carbon-13 MRI, can better predict how rectal cancer responds to chemoradiotherapy. By tracking how cancer cells use energy, along with blood and tissue analysis, researchers hope to identify complete tumor responses that standard scans might miss. The study involves 30 adults with rectal cancer who will undergo imaging before and after treatment. If the approach works, it could help doctors decide who can safely avoid surgery.

What this could mean

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

Active substance
hyperpolarized [1-13C]pyruvate injection for metabolic MRI
What this could lead to
If successful, this imaging approach could help doctors predict which rectal cancer patients respond completely to chemoradiotherapy, potentially sparing them from unnecessary surgery.
What could go wrong
This is a small, early-phase study with only 30 participants, so results may not apply to all patients. The technique is complex and not yet widely available.

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.

Participants

About 30 people

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

Started

Jun 2026

Expected to finish

Jul 2028

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.

Who is studied

The study population consists of patients with rectal cancer who received neoadjuvant chemoradiotherapy (nCRT) at a single center. Eligible participants are adults diagnosed with rectal cancer and treated with nCRT prior to surgery.

Ages

20 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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. Patients with biopsy proved rectal adenocarcinoma. 2. Patents will undergo neoadjuvant chemoradiation therapy (nCRT). 3. Patients more than 20-year-old. Exclusion Criteria: 2\. Contraindication to MRI study (e.g., claustrophobia or non-removable devices or implants that are incompatible with MRI). 3. Intercurrent illness that will affect the compliance of the patient during the MRI study (e.g., active infection, symptomatic congestive heart failure, uncontrollable angina, arrhythmia, psychiatric disorders, dyspnea, or diarrhea). 4. Severe hepatic dysfunction (alkaline phosphatase/aspartate aminotransferase/alanine aminotransferase \>20 × upper limit of normal \[ULN\] or bilirubin \> 10 × ULN). 5. Severe renal impairment (eGFR \<30 ml/min/1.73m2).

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Conditions

The condition(s) this trial relates to.

rectal neoplasm rectum adenocarcinoma

As listed by the trial registrant

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

Neoadjuvant chemoradiotherapy

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

  • Chang Gung Memorial hospital

    RECRUITING

    Taoyuan, 333, Taiwan

More trials for these conditions

Other studies related to the condition(s) this trial covers.