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Could cutting one amino acid help fight stomach cancer?

NCT ID NCT07537348

Disease control Sponsor: Qilu Hospital of Shandong University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a 3-day low-leucine diet can make chemotherapy and immunotherapy work better for people with advanced stomach cancer. Researchers believe the diet may activate immune cells in the tumor. The trial involves 73 participants and will measure tumor shrinkage and survival rates.

What this could mean

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

Active substance
leucine-restricted diet
What this could lead to
If it works, this diet could boost the effectiveness of standard cancer treatments, potentially improving survival rates for people with advanced gastric cancer.
What could go wrong
This is a small, early-phase trial with only 73 participants. The diet is short-term and may not be feasible for all patients. It is not a cure, and the benefits are uncertain.

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 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 73 people

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

Started

Jan 2026

Expected to finish

Dec 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.

Ages

18 to 70 years

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: * Diagnosis and Treatment Plan: Patients with advanced gastric cancer with distant metastasis, confirmed by imaging modalities (such as CT or PET-CT) and clinical pathological data, who are indicated for combined chemotherapy and immunotherapy. * Demographics: Aged 18 to 70 years, regardless of gender. * Dietary Capability: Capable of oral intake or receiving liquid diet via nasogastric tube. * Consent: Willing to participate in this study and have signed the Informed Consent Form (ICF). * Exclusion of Other Malignancies: No concurrent primary malignant tumors other than gastric cancer. Exclusion Criteria: * Cognitive or Psychiatric Impairment: Cognitive dysfunction or psychiatric disorders that prevent the patient from understanding the study content or providing informed consent. * Diabetes Mellitus: Diagnosis of Type 1 or Type 2 diabetes mellitus. * Gastrointestinal Conditions: Presence of severe diarrhea, intractable vomiting, severe malabsorption syndrome, paralytic or mechanical intestinal obstruction, or active gastrointestinal bleeding. * Allergy：Known hypersensitivity or allergy to any of the main components of the leucine-deficient nutritional powder. * Concomitant Supplements: Current use of other nutritional supplements that may potentially confound the study results or affect efficacy evaluation. * Treatment Tolerance: Inability to tolerate combined chemotherapy and immunotherapy, or occurrence of severe gastrointestinal adverse events following such treatment.

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Conditions

The condition(s) this trial relates to.

gastric cancer

As listed by the trial registrant

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

Advanced gastric cancer

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

  • Qilu Hospital of Shandong University

    RECRUITING

    Jinan, Shandong, 250012, China

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