New cancer drug ZN-c3 shows early promise in solid tumor trial

NCT ID NCT04158336

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

Summary

This early-phase study tested a new drug called ZN-c3 (Azenosertib) in 274 adults with various solid tumors. The main goals were to find a safe dose and check for side effects. Researchers also looked for signs that the drug could shrink tumors. This is a first step to see if the drug is worth testing in larger studies.

What this could mean

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

Active substance

Azenosertib (also called ZN-c3)

What this could lead to

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

What could go wrong

This is a very early Phase 1 trial, so the main goal is safety, not proof of effectiveness. Many cancer drugs that look promising in early testing fail in later, larger studies.

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.

endometrial serous adenocarcinoma neoplasm

As listed by the trial registrant

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

Contacts and locations

Locations

  • Site 0100

    San Antonio, Texas, 78229, United States

  • Site 0101

    Detroit, Michigan, 48201, United States

  • Site 0102

    Tucson, Arizona, 85719, United States

  • Site 0103

    Houston, Texas, 77030, United States

  • Site 0167

    Newport Beach, California, 92663, United States

  • Site 0171

    Chicago, Illinois, 60637, United States

  • Site 0173

    New York, New York, 10029, United States

  • Site 0179

    Pittsburgh, Pennsylvania, 15213, United States