New drug combo trial targets Hard-to-Treat breast and ovarian cancers

NCT ID NCT06188520

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This early-phase trial is testing a new drug called AZD8421, alone or with other cancer drugs, in people with advanced ER+ breast cancer or high-grade ovarian cancer. The study aims to find safe doses and see if the drug can shrink tumors. About 564 women aged 18 and older will take part.

What this could mean

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

Active substance

AZD8421 (a CDK2 inhibitor) alone or in combination with camizestrant, ribociclib, palbociclib, or abemaciclib

What this could lead to

If successful, this could lead to a new treatment option for people with advanced ER+ breast cancer or high-grade ovarian cancer that has stopped responding to standard therapies.

What could go wrong

This is a very early (Phase 1/2a) trial, so the drug may not work or may cause unexpected side effects. It is also only for specific cancer types and may not benefit everyone.

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.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for ER+ HER2- ADVANCED BREAST CANCER are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

estrogen-receptor positive breast cancer hormone receptor-positive breast cancer ovarian serous adenocarcinoma

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: •••••@•••••

Locations

  • Research Site

    RECRUITING

    St Louis, Missouri, 63141, United States

  • Research Site

    RECRUITING

    Providence, Rhode Island, 02903, United States

  • Research Site

    RECRUITING

    Nashville, Tennessee, 37201, United States

  • Research Site

    RECRUITING

    Houston, Texas, 77030, United States

  • Research Site

    RECRUITING

    East Melbourne, 3002, Australia

  • Research Site

    RECRUITING

    Seoul, 03722, South Korea

  • Research Site

    RECRUITING

    Seoul, 06351, South Korea

  • Research Site

    RECRUITING

    Barcelona, 8035, Spain

  • Research Site

    RECRUITING

    Pamplona, 31005, Spain

  • Research Site

    RECRUITING

    Valencia, 46010, Spain

  • Research Site

    RECRUITING

    Cambridge, CB2 0XY, United Kingdom

  • Research Site

    RECRUITING

    Leeds, LS9 7TF, United Kingdom

  • Research Site

    RECRUITING

    London, EC1A 7BE, United Kingdom

  • Research Site

    RECRUITING

    Manchester, M20 4BX, United Kingdom