New drug IBI129 tested in humans for first time against Hard-to-Treat cancers

NCT ID NCT05991349

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-phase trial tested an experimental drug called IBI129 in 36 adults with advanced solid tumors that could not be removed by surgery or had spread. The main goals were to find a safe dose and check for side effects. Researchers also looked for any signs that the drug might control tumor growth. Because this is a first-in-human study, the results are very preliminary and do not yet show whether IBI129 is an effective treatment.

What this could mean

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

Active substance

IBI129 (an experimental drug given by infusion every 3 weeks)

What this could lead to

If it works, this could point toward a new treatment option for people with advanced solid tumors that have not responded to other therapies.

What could go wrong

This is a very early, first-in-human study with only 36 participants. The drug may not shrink tumors or may cause side effects. Success in this small trial does not guarantee it will work for larger groups.

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

Locations

  • Chris O'Brien Lifehouse

    Camperdown, New South Wales, 2050, Australia

  • Hubei Cancer Hospital

    Wuhan, Hubei, China

  • Shandong Cancer Hospital

    Jinan, Shandong, 250117, China

  • St George private Hospital

    Kogarah, New South Wales, 2217, Australia

  • The First Hospital of Jilin University

    Changchun, Jilin, 130021, China

  • Tianjin Medical university cancer institute & Hospital

    Tianjin, Tianjin Municipality, 300000, China

  • Wollongong Hospital

    Wollongong, New South Wales, 2500, Australia