New hope for men with Hard-to-Treat prostate cancer: drug combo trial launches
NCT ID NCT07213674
First seen Jun 27, 2026 · Last updated Sep 11, 2026 · Updated 9 times
Summary
This phase 3 trial is testing whether adding the experimental drug xaluritamig to standard abiraterone helps men with metastatic castration-resistant prostate cancer live longer. About 750 participants who have not yet had chemotherapy will be randomly assigned to receive either the combination or one of several standard treatments. The main goal is to compare overall survival between the groups.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Xaluritamig (also called AMG 509) plus abiraterone
- What this could lead to
- If successful, this combination could extend survival for men with advanced prostate cancer that no longer responds to hormone therapy, offering a new treatment option before chemotherapy.
- What could go wrong
- This is a large phase 3 trial, but the experimental drug is still investigational. It may not improve survival compared to current treatments, and side effects from the combination could be significant.
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
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 750 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Aug 2032
An estimate. End dates often move.
- Lead sponsor
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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
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18 years and older
- Sex
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Male participants only
- Healthy volunteers
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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 Hide 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: * Participant has provided informed consent before initiation of any study-specific activities/procedures. * Age ≥ 18 years (or ≥ legal age within the country if it is older than 18 years) at the time of signing the informed consent. * Participant must have histological, pathological, and/or cytological confirmation of adenocarcinoma of the prostate. Mixed histologies (eg, adenocarcinoma with neuroendocrine component) are not permitted. * Metastatic castration-resistant prostate cancer (mCRPC) with ≥ 1 metastatic lesion that is present on baseline computed tomography (CT), magnetic resonance imaging (MRI), or bone scan imaging obtained within 28 days before enrollment. * Evidence of progressive disease (PD), defined as 1 or more PCWG3-modified RECIST 1.1 criteria: * Serum PSA progression is defined as 2 consecutive increases in PSA over a previous reference value measured at least 1 week prior. The minimum start value is 2.0 ng/mL. * Soft-tissue progression defined as an increase ≥ 20% in the sum of the diameter (SOD) (short axis for nodal lesions and long axis for non-nodal lesions) of all target lesions based on the smallest SOD since treatment started or the appearance of 1 or more new lesions or unequivocal progression of existing non-target lesions. * Progression of bone disease defined by the appearance of at least 2 new bone lesions(s) by bone scan (as per the 2+2 PCWG3-modified RECIST 1.1 criteria). * Participants must have had prior orchiectomy and/or ongoing androgen-deprivation therapy (ADT) and a castrate level of serum testosterone (\< 50 ng/dL or \< 1.7 nmol/L). * Prior disease progression on 1, and only 1, androgen receptor pathway inhibitor (ARPI) (either enzalutamide, apalutamide, or darolutamide) is required. * Participants intended to receive cabazitaxel must have previously received ≤ 6 cycles of docetaxel in the metastatic hormone-sensitive prostate cancer (mHSPC) setting. * Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1. * Adequate organ function. Exclusion Criteria: Disease Related: * Participants with a history of central nervous system (CNS) metastases. * Unresolved toxicities from prior antitumor therapy not having resolved to CTCAE version 5.0 grade 1 or baseline, with the exception of alopecia or toxicities that are stable and well-controlled AND there is an agreement to allow inclusion by both the investigator and the sponsor. Prior/Concomitant Therapy: * Prior six transmembrane epithelial antigen of the prostate 1 (STEAP1)-targeted therapy. * Prior disease progression on or intolerance to abiraterone. * Prior treatment with any chemotherapy regimen in the mCRPC setting and/or \> 6 cycles of docetaxel treatment in the mHSPC setting. * Any anticancer therapy, immunotherapy, or investigational agent within 4 weeks before first dose of study treatment with the following exceptions: * Androgen receptor pathway inhibitors (ARPIs; enzalutamide, darolutamide, apalutamide): minimum washout of 2 weeks prior to the first dose of study treatment. * Androgen suppression therapy (eg, luteinizing hormone-releasing hormone/gonadotrophin releasing hormone \[LHRH/GnRH\] analogue \[agonist/antagonist\]) is permitted. * Prior radioligand therapy (RLT) within 8 weeks of first dose of study treatment. * Prior radionuclide therapy (radium-223) within 2 months of first dose of study treatment. * Prior palliative radiotherapy within 2 weeks before first dose of study treatment. Participants must have recovered from all radiation-related toxicities. * Concurrent cytotoxic chemotherapy, ARPI, immunotherapy, RLT, poly adenosine diphosphate ribose polymerase (PARP) inhibitor, biological therapy, investigational therapy. * Treatment with live and live-attenuated vaccines within 4 weeks before the first dose of study treatment. * Prior CD3-directed therapy.
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Get notified about this study
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Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
154 sites in 18 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
Show contact details
Enter your email to view the contact information for this study.
Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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Alexandra Hospital
RECRUITINGAthens, 11528, Greece
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Asan Medical Center
RECRUITINGSeoul, 05505, South Korea
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Athens Medical Center S.A - Iatriko Amarousiou
RECRUITINGMarousi, 15125, Greece
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Attikon University Hospital
RECRUITINGAthens, 12462, Greece
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Austin Health, Austin Hospital
RECRUITINGEast Melbourne, Victoria, 3002, Australia
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Azienda Ospedaliera Universitaria San Luigi Gonzaga
RECRUITINGOrbassano, 10043, Italy
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Azienda Ospedaliera Universitaria di Modena Policlinico
RECRUITINGModena, 41124, Italy
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Azienda Ospedaliero Universitaria Ospedali Riuniti di Foggia
RECRUITINGFoggia, 71122, Italy
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Barbara Ann Karmanos Cancer Institute
RECRUITINGLansing, Michigan, 48910, United States
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Bon Secours Cancer Institute at Saint Francis
RECRUITINGMidlothian, Virginia, 23114, United States
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CIUSSS de l Estrie CHUS Hopital Fleurimont
RECRUITINGSherbrooke, Quebec, J1H 5N4, Canada
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Calvary Mater Newcastle Hospital
RECRUITINGWaratah, New South Wales, 2298, Australia
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Cancer Care Specialists of Illinois
RECRUITINGDecatur, Illinois, 62526, United States
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Centre Antoine Lacassagne
RECRUITINGNice, 06189, France
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Centre Hospitalier Universitaire Dinant Godinne - Universite Catholique de Louvain Namur
RECRUITINGYvoir, 5530, Belgium
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Centre Hospitalier Universitaire Vaudois
RECRUITINGLausanne, 1011, Switzerland
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Centre Hospitalier Universitaire de Bordeaux - Hopital Saint Andre
RECRUITINGBordeaux, 33075, France
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Centre Hospitalier Universitaire de Strasbourg - Hopital de Hautepierre
RECRUITINGStrasbourg, 67000, France
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Centre Jean Perrin
RECRUITINGClermont-Ferrand, 63011, France
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Centre Leon Berard
RECRUITINGLyon, 69373, France
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Centre Regional Francois Baclesse
RECRUITINGCaen, 14076, France
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Centre de Recherche du Centre Hospitalier de l Universite de Montreal
RECRUITINGMontreal, Quebec, H2X 0A9, Canada
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Charite - Universitaetsmedizin Berlin, Campus Mitte
RECRUITINGBerlin, 10117, Germany
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City of Hope Atlanta
RECRUITINGNewnan, Georgia, 30265, United States
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City of Hope Cancer Center Phoenix
RECRUITINGGoodyear, Arizona, 85338, United States
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City of Hope National Medical Center
RECRUITINGDuarte, California, 91010, United States
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City of Hope Orange County Lennar Foundation Cancer Center
RECRUITINGDuarte, California, 91010, United States
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Clinica Universidad de Navarra
RECRUITINGPamplona, Navarre, 31008, Spain
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Clinique Victor Hugo - Centre Jean Bernard
RECRUITINGLe Mans, 72000, France
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Complexo Hospitalario Universitario A Coruna Hospital Teresa Herrera
RECRUITINGA Coruña, Galicia, 15006, Spain
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Dayton Physicians LLC Dayton
RECRUITINGDayton, Ohio, 45415, United States
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Dokkyo Medical University Saitama Medical Center
RECRUITINGKoshigaya-shi, Saitama, 343-8555, Japan
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European Interbalkan Medical Center
RECRUITINGThessaloniki, 57001, Greece
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Fondazione IRCCS Istituto Nazionale dei Tumori
RECRUITINGMilan, 20133, Italy
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General Oncological Hospital of Kifisia Oi Agioi Anargyroi
RECRUITINGKifissia, Athens, 14564, Greece
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Groupe Hospitalier Paris Saint Joseph
RECRUITINGParis, 75014, France
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Gustave Roussy
RECRUITINGVillejuif, 94805, France
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Guys Hospital
RECRUITINGLondon, SE1 9RY, United Kingdom
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Hartford HealthCare Cancer Institute at Hartford Hospital
RECRUITINGHartford, Connecticut, 06102, United States
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Hematology Oncology Association of Central New York
RECRUITINGEast Syracuse, New York, 13057, United States
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Henry Dunant Hospital Center
RECRUITINGAthens, 11526, Greece
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Hightower Clinical
RECRUITINGOklahoma City, Oklahoma, 73102, United States
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Hirslanden Zurich
RECRUITINGZurich, 8032, Switzerland
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Hopital Europeen Georges Pompidou
RECRUITINGParis, 75015, France
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Hopital Foch
RECRUITINGSuresnes, 92151, France
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Hospital Clinic i Provincial de Barcelona
RECRUITINGBarcelona, Catalonia, 08036, Spain
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Hospital Clinico San Carlos
RECRUITINGMadrid, 28040, Spain
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Hospital Clinico Universitario Virgen de la Victoria
RECRUITINGMálaga, Andalusia, 29010, Spain
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Hospital Regional Universitario de Malaga
RECRUITINGMálaga, Andalusia, 29011, Spain
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Hospital Universitari Vall d Hebron
RECRUITINGBarcelona, 08035, Spain
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Hospital Universitario 12 de Octubre
RECRUITINGMadrid, 28041, Spain
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Hospital Universitario Lucus Augusti
RECRUITINGLugo, Galicia, 27003, Spain
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Hospital Universitario Puerta de Hierro Majadahonda
RECRUITINGMajadahonda, Madrid, 28222, Spain
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Hospital Universitario Ramon y Cajal
RECRUITINGMadrid, 28034, Spain
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Hospital da Luz, SA
RECRUITINGLisbon, 1500-650, Portugal
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Hospital de la Santa Creu i Sant Pau
RECRUITINGBarcelona, Catalonia, 08041, Spain
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IRCCS Istituto Clinico Humanitas
RECRUITINGRozzano, 20089, Italy
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IRCCS Ospedale San Raffaele
RECRUITINGMilan, 20132, Italy
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Icon Cancer Care Wesley
RECRUITINGAuchenflower, Queensland, 4066, Australia
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Inselspital Bern
RECRUITINGBern, 3010, Switzerland
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Institut Bergonie
RECRUITINGBordeaux, 33076, France
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Institut Catala d Oncologia Hospitalet Hospital Duran i Reynals
RECRUITINGL'Hospitalet de Llobregat, Catalonia, 08908, Spain
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Institut Universitaire du Cancer Toulouse Oncopole
RECRUITINGToulouse, 31059, France
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Institut de Cancerologie de Lorraine
RECRUITINGVandœuvre-lès-Nancy, 54519, France
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Instituto Portugues de Oncologia do Porto Francisco Gentil, EPE
RECRUITINGPorto, 4200-072, Portugal
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Johns Hopkins Hospital Sidney Kimmell Comprehensive Cancer Center
RECRUITINGBaltimore, Maryland, 21287, United States
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Kagawa University Hospital
RECRUITINGKita-gun, Kagawa-ken, 761-0793, Japan
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Kanazawa University Hospital
RECRUITINGKanazawa, Ishikawa-ken, 920-8641, Japan
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Kantonsspital Sankt Gallen
RECRUITINGSankt Gallen, 9007, Switzerland
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Kaohsiung Medical University Chung-Ho Memorial Hospital
RECRUITINGKaohsiung City, 80756, Taiwan
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Kitasato University Hospital
RECRUITINGSagamihara-shi, Kanagawa, 252-0375, Japan
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Kobe University Hospital
RECRUITINGKobe, Hyōgo, 650-0017, Japan
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Krankenhaus der Barmherzigen Brueder Wien
RECRUITINGVienna, 1020, Austria
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Kyushu University Hospital
RECRUITINGFukuoka, Fukuoka, 812-8582, Japan
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Medical Oncology Hematology Consultants Helen F Graham Cancer Center
RECRUITINGNewark, Delaware, 19713, United States
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Medizinische Universitaet Innsbruck
RECRUITINGInnsbruck, 6020, Austria
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Memorial Sloan Kettering Cancer Center
RECRUITINGNew York, New York, 10065, United States
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Midwestern Regional Medical Center dba City of Hope Chicago
RECRUITINGZion, Illinois, 60099, United States
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Minnesota Oncology Hematology PA
RECRUITINGMinneapolis, Minnesota, 55404, United States
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Moffitt Cancer Center
RECRUITINGTampa, Florida, 33612, United States
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Monash Medical Centre
RECRUITINGClayton, Victoria, 3168, Australia
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Nagoya University Hospital
RECRUITINGNagoya, Aichi-ken, 466-8560, Japan
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National Cancer Centre Singapore
RECRUITINGSingapore, 168583, Singapore
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National Cheng Kung University Hospital
RECRUITINGTainan, 70403, Taiwan
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National Hospital Organization Shikoku Cancer Center
RECRUITINGMatsuyama, Ehime, 791-0280, Japan
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National Taiwan University Hospital
RECRUITINGTaipei, 10002, Taiwan
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National University Hospital
RECRUITINGSingapore, 119074, Singapore
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Nippon Medical School Hospital
RECRUITINGBunkyo-ku, Tokyo, 113-8603, Japan
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Northwest Medical Specialties, PLLC
RECRUITINGTacoma, Washington, 98405, United States
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Norton Cancer Institute
RECRUITINGLouisville, Kentucky, 40207, United States
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Oncology Hematology Care Incorporated
RECRUITINGCincinnati, Ohio, 45242, United States
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Ordensklinikum Linz Elisabethinen
RECRUITINGLinz, 4020, Austria
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Oregon Oncology Specialists
RECRUITINGSalem, Oregon, 97301, United States
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Osaka International Cancer Institute
RECRUITINGOsaka, Osaka, 541-8567, Japan
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Ospedale Pederzoli Casa di Cura Privata
RECRUITINGPeschiera del Garda, 37019, Italy
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Ospedale Santa Chiara Azienda Sanitaria Universitaria Integrata del Trentino
RECRUITINGTrento, 38122, Italy
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Providence Saint Johns Health Center
RECRUITINGSanta Monica, California, 90404, United States
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Providence Saint Jude Medical Center
RECRUITINGFullerton, California, 92835, United States
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Renovatio Clinical
RECRUITINGHouston, Texas, 77030, United States
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Rocky Mountain Cancer Centers
RECRUITINGDenver, Colorado, 80218, United States
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Royal Marsden Hospital
RECRUITINGSutton, SM2 5PT, United Kingdom
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Saitama Medical University International Medical Center
TERMINATEDHidaka-shi, Saitama, 350-1298, Japan
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Sarah Cannon Research Institute Oncology Partners
RECRUITINGNashville, Tennessee, 37203, United States
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Sarah Cannon Research Institute UK
RECRUITINGLondon, W1G 6AD, United Kingdom
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Seoul National University Hospital
RECRUITINGSeoul, 03080, South Korea
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Severance Hospital Yonsei University Health System
RECRUITINGSeoul, 03722, South Korea
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Sir Mortimer B Davis - Jewish General Hospital
RECRUITINGMontreal, Quebec, H3T 1E2, Canada
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South Texas Accelerated Research Therapeutics - Carolinas
RECRUITINGMyrtle Beach, South Carolina, 29572, United States
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Sunnybrook Research Institute Sunnybrook Health Sciences Centre
RECRUITINGToronto, Ontario, M4N 3M5, Canada
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Taichung Veterans General Hospital
RECRUITINGTaichung, 40705, Taiwan
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Tan Tock Seng Hospital
RECRUITINGSingapore, 308433, Singapore
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Tasman Oncology Research
RECRUITINGSouthport, Queensland, 4215, Australia
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Texas Oncology - Northeast Texas
RECRUITINGTyler, Texas, 75702, United States
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The Cancer institute Hospital of Japanese Foundation for Cancer Research
RECRUITINGKoto-ku, Tokyo, 135-8550, Japan
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The Center for Cancer and Blood Disorders
RECRUITINGArlington, Texas, 76012, United States
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The Jikei University Hospital
RECRUITINGMinato-ku, Tokyo, 105-8471, Japan
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The Ohio State University
RECRUITINGColumbus, Ohio, 43210, United States
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The University of Osaka Hospital
RECRUITINGSuita-shi, Osaka, 565-0871, Japan
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Toyama University Hospital
RECRUITINGToyama, Toyama, 930-0194, Japan
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US Oncology Research Investigational Products Center
RECRUITINGTyler, Texas, 75702, United States
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Unidade Local de Saude de Gaia-Espinho, EPE
RECRUITINGVila Nova de Gaia, 4430-502, Portugal
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Unidade Local de Saude de Santa Maria, EPE - Hospital de Santa Maria
RECRUITINGLisbon, 1649-035, Portugal
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Unidade Local de Saude de Sao Joao, EPE - Hospital de Sao Joao
RECRUITINGPorto, 4200-319, Portugal
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Uniklinikum Erlangen
RECRUITINGErlangen, 91054, Germany
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United States Oncology Regulatory Affairs Corporate Office
RECRUITINGNashville, Tennessee, 37203, United States
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Universitaetsklinikum Allgemeines Krankenhaus Wien
RECRUITINGVienna, 1090, Austria
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Universitaetsklinikum Bonn
RECRUITINGBonn, 53127, Germany
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Universitaetsklinikum Dresden
RECRUITINGDresden, 01307, Germany
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Universitaetsklinikum Essen
RECRUITINGEssen, 45147, Germany
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Universitaetsklinikum Hamburg Eppendorf
RECRUITINGHamburg, 20246, Germany
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Universitaetsklinikum Heidelberg
RECRUITINGHeidelberg, 69120, Germany
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Universitaetsklinikum Jena
RECRUITINGJena, 07747, Germany
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Universitaetsklinikum Sankt Poelten
RECRUITINGSankt Pölten, 3100, Austria
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Universitaetsklinikum Schleswig-Holstein - Kiel
RECRUITINGKiel, 24105, Germany
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Universitaetsklinikum Ulm
RECRUITINGUlm, 89081, Germany
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Universitaetsklinikum Wuerzburg
RECRUITINGWürzburg, 97080, Germany
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Universitair Medisch Centrum Groningen
RECRUITINGGroningen, 9713 GZ, Netherlands
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Universitair Ziekenhuis Gent
RECRUITINGGhent, 9000, Belgium
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Universitair Ziekenhuis Leuven - Campus Gasthuisberg
RECRUITINGLeuven, 3000, Belgium
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Universite Catholique de Louvain Cliniques Universitaires Saint Luc
RECRUITINGBrussels, 1200, Belgium
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University General Hospital of Alexandroupoli
RECRUITINGAlexandroupoli, 68100, Greece
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University Hospital of Heraklion
RECRUITINGHeraklion - Crete, 71500, Greece
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University of Arizona Cancer Center
RECRUITINGTucson, Arizona, 85724, United States
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University of California Irvine
RECRUITINGOrange, California, 92868, United States
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University of California San Francisco
RECRUITINGSan Francisco, California, 94158, United States
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University of Illinois Chicago
RECRUITINGChicago, Illinois, 60612, United States
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University of Kansas Medical Center
RECRUITINGWestwood, Kansas, 66205, United States
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University of Louisville Health - James Graham Brown Cancer Center
RECRUITINGLouisville, Kentucky, 40202, United States
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University of Maryland Greenebaum Cancer Center
RECRUITINGBaltimore, Maryland, 21201, United States
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University of Minnesota Medical Center Fairview
RECRUITINGMinneapolis, Minnesota, 55455, United States
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University of Pittsburgh Medical Center
RECRUITINGPittsburgh, Pennsylvania, 15232, United States
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University of Texas Southwestern Medical Center
RECRUITINGDallas, Texas, 75390, United States
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University of Virginia Cancer Center
RECRUITINGCharlottesville, Virginia, 22903, United States
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Virginia Cancer Specialists PC
RECRUITINGLeesburg, Virginia, 20176, United States
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Virginia Oncology Associates
RECRUITINGNorfolk, Virginia, 23502, United States
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