New cancer pill shows promise in early trial

NCT ID NCT04991480

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

Summary

This early-phase trial tested a new oral drug called ART4215 in 93 people with advanced or metastatic solid tumors, including breast cancer. The main goals were to find a safe dose and check for side effects when given alone or with other cancer drugs (talazoparib or niraparib). Researchers also looked at whether the drug could slow tumor growth.

What this could mean

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

Active substance

ART4215 (a DNA repair blocker, taken as a pill)

What this could lead to

If successful, this could lead to a new treatment option for people with advanced solid tumors, especially those with breast cancer.

What could go wrong

This is an early Phase 1/2a trial with only 93 participants, so safety and effectiveness are not yet proven. The drug may cause side effects or not work as hoped.

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.

breast cancer breast neoplasm cancer Her2-receptor negative breast cancer metastatic malignant neoplasm Neoplasm Metastasis

As listed by the trial registrant

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

Contacts and locations

Locations

  • Florida Cancer Specialists

    Orlando, Florida, 32827, United States

  • MD Anderson Cancer Center

    Houston, Texas, 77030, United States

  • Memorial Sloan Kettering Cancer Center

    New York, New York, 10065, United States

  • Oklahoma University

    Oklahoma City, Oklahoma, 73104, United States

  • Sarah Cannon Research Institute

    London, England, UK/W1G 6AD, United Kingdom

  • Tennessee Oncology

    Nashville, Tennessee, 37203, United States

  • University of Pennsylvania/Abramson Cancer Center

    Philadelphia, Pennsylvania, 19104, United States

  • Yale School of Medicine

    New Haven, Connecticut, 06520, United States