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New antibody therapy targets Hard-to-Treat prostate cancer

NCT ID NCT07529717

Disease control Sponsor: AstraZeneca Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Sep 10, 2026 · Updated 6 times

Summary

This study tests an experimental drug called AZD8359 for men with metastatic prostate cancer that has spread and is no longer responding to standard treatments. The drug is designed to guide the body's immune cells to attack cancer cells. The trial will first find the safest dose and then test it in a larger group to see if it can shrink tumors or lower PSA levels.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 42 people

The number the study aims to enrol. It can still change while the study runs.

Started

May 2026

Expected to finish

Nov 2027

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 100 years

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Histologically confirmed diagnosis of adenocarcinoma of the prostate or neuroendocrine differentiated prostate cancer * Surgically or medically castrated with serum testosterone levels ≤ 50 ng/dL (≤ 1.75 nmol/L) * PSA value at screening should be ≥ 1ng/mL * Evidence of disease progression within 6 months prior to screening * Part A Participants should have received at least 2 prior approved systemic therapies for prostate cancer with at least one androgen receptor pathway inhibitor and at least one taxane regimen if amenable * Part B Participants should have received an androgen receptor pathway inhibitor for metastatic hormone sensitive prostate cancer or metastatic castration resistant prostate cancer (mCRPC). No prior taxane treatment for mCRPC is allowed for Module 1 and 2 Part B patients * Adequate organ function * Body weight ≥ 35 kg Exclusion Criteria: * Any clinically relevant cardiac abnormalities such as QT prolongation or uncontrolled cardiac arrythmias * All prior treatment-related adverse events must have resolved to Grade ≤ 2 * History of Grade ≥ 3 cytokine release syndrome or Grade ≥ 2 immune effector cell-associated neurotoxicity syndrome with prior therapy * Active or prior documented autoimmune or inflammatory disorders within the past 3 years * Prior exposure to any STEAP2 targeted agents or TCEs for prostate cancer

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Conditions

The condition(s) this trial relates to.

metastatic prostate carcinoma prostate cancer

As listed by the trial registrant

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

Metastatic prostate cancer

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    8 sites in 3 countries. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Research Site

    RECRUITING

    Orlando, Florida, 32806, United States

  • Research Site

    RECRUITING

    East Brunswick, New Jersey, 08816, United States

  • Research Site

    NOT_YET_RECRUITING

    Hackensack, New Jersey, 07601, United States

  • Research Site

    RECRUITING

    Providence, Rhode Island, 02903, United States

  • Research Site

    RECRUITING

    Darlinghurst, 2010, Australia

  • Research Site

    RECRUITING

    Melbourne, 3000, Australia

  • Research Site

    RECRUITING

    Seoul, 03722, South Korea

  • Research Site

    RECRUITING

    Seoul, 06351, South Korea

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