New drug combo aims to stall prostate cancer spread
NCT ID NCT04557059
First seen Jun 25, 2026 · Last updated Aug 28, 2026 · Updated 4 times
Summary
This phase 3 study tests whether adding the drug apalutamide to standard radiotherapy and hormone therapy can delay cancer spread or death in 692 men with high-risk prostate cancer. Participants are randomly assigned to receive either the standard treatment alone or with apalutamide. The study uses advanced PET scans to track cancer progression.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Apalutamide (a hormone therapy drug)
- What this could lead to
- If successful, this could offer a new treatment option that delays cancer spread in high-risk prostate cancer patients.
- What could go wrong
- This is an early-stage trial, and results may not confirm benefit. Side effects from adding apalutamide could outweigh advantages.
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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691 people
The number who actually took part.
- Started
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Nov 2020
- Expected to finish
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Sep 2031
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: * Histologically confirmed adenocarcinoma of the prostate * Previously treated with radical prostatectomy with or without lymph node dissection and either: a) for biochemical recurrence after radical prostatectomy (RP): any post-operative prostate-specific antigen (PSA) measurement of less than (\<) 0.1 nanogram/milliliter (ng/mL) within 12 months after RP and without any PSA greater than and equal to (\>=) 0.1 ng/mL within the 4 to 8-week period after RP or b) for persistent PSA after RP: PSA \>=0.1 ng/mL within the 4 to 8-week period after RP, confirmed by additional measurement at least 3 weeks later * Be able to swallow whole the study drug tablets or follow the instructions for admixing with apple sauce * Results of the Prostate specific membrane antigen-positron emission tomography (PSMA-PET) at screening as determined by blinded independent, central review (BICR), must be: PSMA-PET-negative for any prostate cancer lesions (that is, no loco-regional lesion and no distant lesions); or PSMA-PET-positive for at least one loco-regional (pelvic) lesion without distant extra-pelvic lesion; or PSMA PET- positive for at least one loco--regional (pelvic) lesion with extra-pelvic lesion(s). * High risk of developing metastasis defined as; a) for biochemical recurrence after RP: pathological Gleason score greater than or equal to (\>=) 8 evaluated from prostate tissue specimen at radical prostatectomy, or prostate-specific antigen doubling time (PSADT) less than or equal to (\<=) 12 months at the time of screening; b) for persistent PSA after RP: pathological Gleason score \>=8, evaluated from prostate tissue specimen at radical prostatectomy * Participants with evidence of distant metastasis on screening PSMA-PET scan must have no evidence of prostate cancer metastases on screening CT/MRI of the chest/abdomen/pelvis, Technetium 99m \[99mTc\] whole-body bone scan. Participants with a single bone lesion on 99mTc whole-body bone scan should have confirmatory imaging by CT or MRI; if the confirmatory scan confirms the bone lesion, the participant should be excluded from the study. Conventional images (99mTc-bone scan and CT/MRI) from the screening will be evaluated locally before randomization * Eastern Cooperative Oncology Group Performance Status Grade 0 or 1 Exclusion Criteria: * History of pelvic radiation for malignancy * Previous treatment with androgen deprivation therapy (ADT) for prostate cancer * Previously treated for biochemical recurrence (BCR) or persistent PSA after RP (previous surgical treatment of one or more loco-regional lesions is allowed) * Prior treatment with a CYP17 inhibitor (example, oral ketoconazole, orteronel, abiraterone acetate, galeterone) or any androgen receptor (AR) antagonist including bicalutamide, flutamide, nilutamide, apalutamide, enzalutamide or darolutamide and any other medications that may lower androgen levels (estrogens, progestins, aminoglutethimide, etc.), including bilateral orchiectomy * Known or suspected contraindications or hypersensitivity to apalutamide, Luteinizing Hormone-Releasing Hormone (LHRH) agonist or any of the components of the formulations * Prior chemotherapy for prostate cancer * Any evidence of prostate cancer metastasis on computed tomography/magnetic resonance imaging (CT/MRI) of the chest/abdomen/pelvis or 99mTc whole-body bone scan, at any time prior to screening
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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.
Contacts and locations
Locations
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A.Z. Sint Jan
Bruges, 8000, Belgium
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Aalborg University Hospital
Aalborg, 9000, Denmark
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Aarhus University Hospital
Aarhus N, 8200, Denmark
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Adana Baskent Yuregir Hospital
Adana, 01250, Turkey (Türkiye)
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American Universitty of Beirut Medical Center
Beirut, 1107 2020, Lebanon
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Ankara University Medical Faculty
Ankara, 06590, Turkey (Türkiye)
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Arizona Urology Specialists
Tucson, Arizona, 85741, United States
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Arkansas Urology
Little Rock, Arkansas, 72211, United States
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Associated Medical Professionals of Ny
Syracuse, New York, 13210, United States
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Avix Investigacion Clinica S C
Monterrey, 64623, Mexico
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Az Groeninge
Kortrijk, 8500, Belgium
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Azienda Ospedaliera Sant Andrea
Roma, 00189, Italy
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Azienda Ospedaliero Universitaria Careggi
Florence, 50134, Italy
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Bakirkoy Training and Research Hospital
Istanbul, 34147, Turkey (Türkiye)
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Budapesti Bajcsy Zsilinszky Korhaz es Rendelointezet
Budapest, 1106, Hungary
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Budapesti Uzsoki Utcai Korhaz
Budapest, 1145, Hungary
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Bundaberg Hospital
Bundaberg, 4670, Australia
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CUIMED - urologická ambulancia
Bratislava, 851 05, Slovakia
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Calvary Mater Newcastle
Waratah, 2298, Australia
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Centre Hospitalier du Nord
Zghartā, 100, Lebanon
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Centro de Investigacion Clinica de Oaxaca
Oaxaca City, 68020, Mexico
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Centrum Onkologii im Prof F Lukaszczyka w Bydgoszczy
Bydgoszcz, 85 796, Poland
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City Clinical Hospital #57
Moscow, 105077, Russia
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Clinica Univ. de Navarra
Pamplona, 31008, Spain
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Colorado Clinical Research
Lakewood, Colorado, 80228, United States
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Consultorio de Especialidad en Urologia Privado
Durango, 34000, Mexico
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Cuidados Oncologicos
Querétaro, 76000, Mexico
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Debreceni Egyetem Klinikai Kozpont
Debrecen, 4032, Hungary
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Dokuz Eylul Universitesi Arastirma ve Uygulama Hastanesi
Izmir, 35340, Turkey (Türkiye)
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Dr. Abdurrahman Yurtaslan Ankara Onkoloji Egitim ve Arastirma Hastanesi
Ankara, 06200, Turkey (Türkiye)
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Epworth Healthcare
East Melbourne, 3002, Australia
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Eszak Budai Szent Janos Centrumkorhaz
Budapest, 1125, Hungary
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Fakultni nemocnice Plzen, Urologicka klinika
Pilsen, 305 99, Czechia
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Fakultni nemocnice v Motole
Prague, 15006, Czechia
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First Urology, PSC
Jeffersonville, Indiana, 47130, United States
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Fondazione Policlinico Tor Vergata
Roma, 00133, Italy
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Fund. Champalimaud
Lisbon, 1400-038, Portugal
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Genesis Care Hurstville
Hurstville, 2220, Australia
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GenesisCare Wembley
Wembley, 6014, Australia
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Gentofte Herlev Hospital
Herlev, 2730, Denmark
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Goztepe Prof Dr Suleyman Yalcin Sehir Hastanesi
Istanbul, 34722, Turkey (Türkiye)
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Hacettepe Universitesi Hastanesi
Ankara, 06230, Turkey (Türkiye)
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Helsinki University Hospital
Helsinki, 00290, Finland
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Hertzen Oncology Research Institute
Moscow, 125284, Russia
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Hervey Bay Hospital
Bundaberg, 4670, Australia
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Hosp Virgen de La Victoria
Málaga, 29010, Spain
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Hosp. Arquitecto Marcide
Ferrol, 15405, Spain
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Hosp. Clinico Univ. Lozano Blesa
Zaragoza, 50009, Spain
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Hosp. Cuf Tejo
Lisbon, 1350-352, Portugal
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Hosp. Da Luz Lisboa
Lisbon, 1500 650, Portugal
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Hosp. Univ. 12 de Octubre
Madrid, 28041, Spain
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Hosp. Univ. I Politecni La Fe
Valencia, 46026, Spain
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Hosp. Univ. de La Paz
Madrid, 28046, Spain
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Hosp. Virgen Del Rocio
Seville, 41013, Spain
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Hosp. de Jerez de La Frontera
Jerez de la Frontera, 11407, Spain
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Hosp. de Navarra
Pamplona, 31008, Spain
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Hospital Alemao Oswaldo Cruz
São Paulo, 01421-000, Brazil
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Hospital Erasto Gaertner- Liga Paranaense de Combate ao Cancer
Curitiba, 81520-060, Brazil
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Hospital MAC Leon
León, 37530, Mexico
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Hospital Moinhos de Vento
Porto Alegre, 90035-001, Brazil
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Hospital Universitario Puerto Del Mar
Cadiz, 11009, Spain
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Hospital das Clínicas - Universidade Federal de Minas Gerais
Belo Horizonte, 30130 100, Brazil
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Houston Metro Urology
Houston, Texas, 77027, United States
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I.M. Sechenov First Moscow State Medical University
Moscow, 119991, Russia
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IDOR - Regional Bahia
Salvador, 41253-190, Brazil
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Ipo Lisboa
Lisbon, 1099-023, Portugal
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Irmandade Santa Casa de Misericordia de Porto Alegre
Porto Alegre, 90050-170, Brazil
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Istanbul University Cerrahpasa Medical Faculty
Istanbul, 34096, Turkey (Türkiye)
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Istituto Nazionale Tumori Regina Elena
Roma, 00144, Italy
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Ivanovo Regional Oncology Dispensary
Ivanovo, 153040, Russia
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Jahn Ferenc Del-pesti Korhaz es Rendelointezet
Budapest, 1204, Hungary
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Kartal Dr Lutfi Kirdar Egitim ve Arastirma Hastanesi
Istanbul, 34890, Turkey (Türkiye)
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King Hussein Cancer Center
Amman, 0000, Jordan
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Klinikum rechts der Isar - der Technischen Universität München
München, 81675, Germany
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Koc University, School of Medicine, Koc University Hospital
Istanbul, 34010, Turkey (Türkiye)
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Leningrad Regional Oncology Dispensary
Saint Petersburg, 191104, Russia
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Liga Norte Riograndense Contra O Cancer
Natal, 59075-740, Brazil
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MILAB s.r.o.
Prešov, 08001, Slovakia
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Macquarie University Hospital
North Ryde, 2109, Australia
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Medizinische Universitaet Wien
Vienna, 1090, Austria
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Memorial Ankara Hastanesi
Ankara, 06520, Turkey (Türkiye)
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Michigan Institute of Urology
Troy, Michigan, 48084, United States
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MidLantic Urology
Bala-Cynwyd, Pennsylvania, 19004, United States
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Multifunctional clinical medical center 'Medical city'
Tyumen, 625041, Russia
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NU-MED Grupa S.A Centrum Radioterapii i Onkologii
Elblag, 82-300, Poland
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Narodowy Instytut Onkologii im Marii Sklodowskiej Curie Panstwowy Instytut Badawczy
Warsaw, 02 781, Poland
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Notre Dame De Secours
Byblos, 3, Lebanon
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Núcleo de Pesquisa São Camilo
São Paulo, 04014-002, Brazil
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Oncocenter
Puebla City, 72530, Mexico
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Oncoclinicas Rio de Janeiro S A
Rio de Janeiro, 22250-905, Brazil
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Oncologia Integral Satelite
Naucalpan, 53100, Mexico
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Ordensklinikum Linz GmbH Elisabethinen
Linz, 4020, Austria
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Oregon Urology Institute
Springfield, Oregon, 97477, United States
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Orszagos Onkologiai Intezet
Budapest, 1122, Hungary
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Ospedale San Raffaele
Milan, 20132, Italy
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Oulu University Hospital
Oulu, 90220, Finland
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Privátna urologická ambulancia
Trenčín, 911 01, Slovakia
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Prostatacancercentrum
Stockholm, 112 19, Sweden
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Péterfy Sándor utcai Kórház
Budapest, 1076, Hungary
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Radioterapia Oncologica, A.O.U. San'T Orsola
Bologna, 40138, Italy
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Radomskie Centrum Onkologii
Radom, 26-600, Poland
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Rigshospitalet
Copenhagen N, 2200, Denmark
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SHI Sverdlovsk Regional Clinical Hospital #1
Yekaterinburg, 620102, Russia
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SPb SBIH 'City Clinical Oncological Dispensary'
Saint Petersburg, 197022, Russia
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Sakarya Üniversitesi Tıp Fakültesi Hastanesi
Sakarya, 54187, Turkey (Türkiye)
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Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein
São Paulo, 05652 900, Brazil
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Sociedade Beneficente de Senhoras Hospital Sirio Libanes
São Paulo, 01308 901, Brazil
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Sodersjukhuset
Stockholm, 11883, Sweden
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Spokane Urology
Spokane, Washington, 99202, United States
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St Georges Hospital university medical centre
Beirut, 11 00 2807, Lebanon
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St Vincent's Hospital - Melbourne
Fitzroy, 3065, Australia
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Städtisches Klinikum Braunschweig gGmbH - Standort Salzdahlumer
Braunschweig, 38126, Germany
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Swietokrzyskie Centrum Onkologii SPZOZ w Kielcach
Kielce, 25 734, Poland
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Szpital Wojewodzki im Mikolaja Kopernika w Koszalinie
Koszalin, 75 581, Poland
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Szpitale Pomorskie Sp z o o
Gdynia, 81 519, Poland
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Tampere University Hospital
Tampere, 33521, Finland
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The Urology Group
Cincinnati, Ohio, 45212, United States
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Turku University Hospital
Turku, 20520, Finland
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UZ Gent
Ghent, 9000, Belgium
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Uls Lisboa Ocidental - Hosp. Sao Francisco Xavier
Lisbon, 1449-005, Portugal
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Uls Santa Maria - Hosp. Santa Maria
Lisbon, 1649 035, Portugal
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Uls Santo Antonio - Hosp. Santo Antonio
Porto, 4099-001, Portugal
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Uls de Entre Douro E Vouga - Hosp. Sao Sebastiao
Santa Maria da Feira, 4520-211, Portugal
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Universitaetsklinikum Muenster
Münster, 48149, Germany
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Universitaetsklinikum Salzburg Landeskrankenhaus
Salzburg, 5020, Austria
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Universitatsklinikum Carl Gustav Carcus Dresden
Dresden, 01307, Germany
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Universitatsklinikum Essen
Essen, D-45147, Germany
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Univerzitná nemocnica Martin
Martin, 036 59, Slovakia
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Uniwersyteckie Centrum Kliniczne
Gdansk, 80 952, Poland
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Urocentrum Praha
Prague, 120 00, Czechia
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Uroexam s.r.o.
Nitra, 94901, Slovakia
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Urological Research Network
Hialeah, Florida, 33016, United States
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Urologicka ambulancia e.cho Poprad, s.r.o
Poprad, 05801, Slovakia
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Urologicka klinika 1 LF UK a VFN
Prague, 120 00, Czechia
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Urologiska Mottagningen
Malmö, 205 02, Sweden
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Urology Austin
Austin, Texas, 78745, United States
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Vaasa Central Hospital
Vaasa, 65130, Finland
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Vivantes Klinikum Am Urban
Berlin, 10967, Germany
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Východoslovenský Onkologický Ústav
Košice, 04191, Slovakia
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Wojewodzkie Wielospecjalistyczne Centrum Onkologii i Traumatologii im M Kopernika w Lodzi
Lodz, 93 513, Poland
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ZAS Augustinus
Antwerp, 2610, Belgium
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