New pill could offer hope for advanced breast cancer patients

NCT ID NCT06954961

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

Summary

This phase 3 trial compares a new oral drug, D-0502, against the standard injection fulvestrant for people with ER-positive, HER2-negative advanced or metastatic breast cancer. The study aims to see if D-0502 can delay cancer growth better than fulvestrant. About 640 participants who have already tried hormone therapy will be enrolled.

What this could mean

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

Active substance

D-0502 (oral tablet) and fulvestrant (injection)

What this could lead to

If D-0502 works better than fulvestrant, it could offer a more convenient oral treatment option for people with advanced ER+/HER2- breast cancer, potentially delaying disease progression.

What could go wrong

This is a phase 3 trial, but D-0502 is still experimental. It may not prove superior to fulvestrant, and side effects are not yet fully known. Results may not apply to all breast cancer subtypes.

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 hormone receptor-positive breast cancer

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

  • Cancer Hospital Chinese Academy of Medical Science

    RECRUITING

    Beijing, Beijing Municipality, 100021, China

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

  • Harbin Medical University Cancer Hospital

    RECRUITING

    Harbin, Heilongjiang, 150081, China

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