New drug combo shows promise in slowing advanced breast cancer

NCT ID NCT01992952

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

Summary

This study tests whether adding a targeted drug called AZD5363 to the standard hormone therapy fulvestrant can slow the growth of advanced estrogen-receptor-positive (ER+) breast cancer. It involves 149 postmenopausal women whose cancer has worsened despite prior treatment with an aromatase inhibitor. The trial has two phases: first finding the safest dose, then comparing the combination against fulvestrant alone.

What this could mean

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

Active substance

AZD5363 (a targeted drug) combined with fulvestrant (a hormone therapy)

What this could lead to

If it works, this could offer a new treatment option that delays cancer progression for postmenopausal women with advanced ER+ breast cancer.

What could go wrong

This is an early-phase trial (1b/2) with a small number of participants, so results may not confirm benefit. The drug combination may cause side effects or fail to improve outcomes.

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 carcinoma estrogen-receptor positive breast cancer

As listed by the trial registrant

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

Contacts and locations

Locations

  • Blackpool Victoria Hospital

    Blackpool, United Kingdom

  • Calderdale and Huddersfield NHS Foundation Trust

    Huddersfield, United Kingdom

  • Christie Hospital

    Manchester, Greater Manchester, United Kingdom

  • Clatterbridge Cancer Centre

    Bebington, United Kingdom

  • Derriford Hospital

    Plymouth, United Kingdom

  • Glan Clwyd Hospital

    Rhyl, United Kingdom

  • Great Western General Hospital

    Edinburgh, United Kingdom

  • Mount Vernon Cancer Centre

    London, United Kingdom

  • Queen's Hospital

    Romford, United Kingdom

  • Royal Albert and Edward Infirmary -Wrightington

    Wigan, United Kingdom

  • Royal Blackburn Hospital

    Blackburn, United Kingdom

  • Royal Free Hospital

    London, United Kingdom

  • Royal Preston Hospital

    Preston, United Kingdom

  • Royal Stoke University Hospital

    Stoke-on-Trent, United Kingdom

  • Southampton General Hospital

    Southampton, United Kingdom

  • St James's University Hospital

    Leeds, United Kingdom

  • The Ipswich Hospital NHS Trust

    Ipswich, United Kingdom

  • University Hospital of North Durham

    Durham, United Kingdom

  • University Hospitals Morecambe Bay

    Lancaster, United Kingdom

  • Velindre NHS Trust

    Cardiff, Cardiff, United Kingdom

  • Ysbyty Gwynedd

    Bangor, United Kingdom