Bacteria engineered to starve tumors enters human trials

NCT ID NCT05038150

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial is testing a modified salmonella bacteria, called SGN1, in 70 people with advanced solid tumors that have not responded to standard treatments. The bacteria are designed to grow inside tumors and release an enzyme that breaks down methionine, an amino acid tumors need to survive. The main goals are to check safety and see if the treatment can shrink tumors or slow their growth.

What this could mean

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

Active substance

Modified Salmonella Typhimurium SGN1 (a bacteria engineered to deliver an enzyme that breaks down methionine, an amino acid tumors need to grow)

What this could lead to

If it works, this could point toward a new treatment option for people with advanced solid tumors that have stopped responding to other therapies.

What could go wrong

This is an early phase 1/2 trial with only 70 participants, so it is too soon to know if it is safe or effective. The bacteria may cause serious side effects, and the approach may not shrink tumors.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

neoplasm

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Banner MD Anderson Cancer Center

    SUSPENDED

    Gilbert, Arizona, 85234, United States

  • Barbara Ann Karmanos Cancer Hospital dba Karmanos Cancer Center

    WITHDRAWN

    Detroit, Michigan, 48201, United States

  • Guangdong Clifford Hospital

    RECRUITING

    Guangzhou, Guangdong, 511495, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Harbin Medical University Cancer Hospital

    RECRUITING

    Harbin, Heilongjiang, 150081, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Health Chao Family Comprehensive Cancer Center

    SUSPENDED

    Orange, California, 92868, United States

  • Shanghai Jiao Tong University Affiliated Sixth People's Hospital

    RECRUITING

    Shanghai, Shanghai Municipality, 200233, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • University of Cincinnati Cancer Center

    SUSPENDED

    Cincinnati, Ohio, 45267, United States

  • West China Hospital of Sichuan University

    RECRUITING

    Chengdu, Sichuan, 610041, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••