New peptide drug PQ203 enters human trials for Hard-to-Treat cancers

NCT ID NCT07190469

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This early-stage trial is testing a new drug called PQ203 in about 80 adults with advanced solid tumors, including triple-negative breast cancer, that have not responded to standard treatments. The drug is given as a weekly intravenous infusion. The main goals are to check safety and find the right dose for future studies.

What this could mean

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

Active substance

PQ203 (a peptide drug-conjugate given by intravenous infusion once weekly)

What this could lead to

If successful, this could point toward a new treatment option for advanced solid tumors, especially triple-negative breast cancer.

What could go wrong

This is an early Phase 1 trial with only 80 participants, focused on safety and dosing. It is too soon to know if PQ203 will be effective, and side effects are unknown.

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.

cancer neoplasm triple-negative breast carcinoma

As listed by the trial registrant

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

Contacts and locations

Locations

  • MD Anderson Cancer Center

    RECRUITING

    Houston, Texas, 77030, United States

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

    Contact

  • NEXT Oncology

    RECRUITING

    San Antonio, Texas, 78229, United States

    Contact

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

  • Princess Margaret Cancer Centre

    RECRUITING

    Toronto, Ontario, M5G 0C6, Canada

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

    Contact

  • START Mountain Region

    RECRUITING

    West Valley City, Utah, 84119, United States

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