Prostate Cancer MetastaticPhase 3OMAHA-003NCT06136624
Study of Opevesostat (MK-5684) Versus Alternative NHA in mCRPC (MK-5684-003)
A Phase 3 study testing Opevesostat, Abiraterone acetate and Enzalutamide in people with Prostate Cancer Metastatic, run by Merck Sharp & Dohme LLC at 288 sites in 36 countries.
Trial summary
This is a phase 3, randomized, open-label study of opevesostat compared to alternative abiraterone acetate or enzalutamide in participants with metastatic castration-resistant prostate cancer (mCRPC) with respect to overall survival (OS) in participants with mCRPC previously treated with next-generation hormonal agent… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Prostate Cancer Metastatic
- What is being tested?
- Opevesostat, Abiraterone acetate and Enzalutamide
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,310 participants
- Where
- 288 sitesin 36 countries
- Study dates
- 31 Dec 2023to 29 Mar 2030
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Has histologically- or cytologically-confirmed adenocarcinoma of the prostate without small cell histology.
- Has prostate cancer progression while on androgen deprivation therapy (or post bilateral orchiectomy) within 6 months before Screening
- Has current evidence of distant metastatic disease (M1 disease) documented by either bone lesions on bone scan and/or soft tissue disease by computed tomography/magnetic resonance imaging (CT/MRI).
- Has disease that progressed during or after treatment with 1 novel hormonal agent (NHA)
- Has received 1 but no more than 2 taxane-based chemotherapy regimens for metastatic castration-resistant prostate cancer (mCRPC) and has had progressive disease (PD) during or after treatment
- Has ongoing androgen deprivation with serum testosterone <50 ng/dL (<1.7 nM)
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- Has provided tumor tissue from a fresh core or excisional biopsy from soft tissue not previously irradiated
- Has an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 assessed within 7 days of randomization
- Has had prior treatment with PARPi or were deemed ineligible to receive treatment by the investigator or have refused PARPi treatment
- Has received prior 177Lu-PSMA-617 or were deemed ineligible to receive 177Lu-PSMA-617 treatment by the investigator or refused 177Lu-PSMA-617 treatment
- Participants who have not received cabazitaxel can be enrolled if they are ineligible for cabazitaxel treatment as determined by the investigator or have refused treatment
- If participant received first generation anti-androgen therapy before screening, the participant has evidence of disease progression >4 weeks since the last flutamide treatment and >6 weeks since the last bicalutamide or nilutamide treatment
- Participants receiving bone resorptive therapy (including, but not limited to, bisphosphonate or denosumab) must have been on stable doses for ≥ 4 weeks before the date of randomization
- Participants with human immunodeficiency virus (HIV) infection must have well controlled HIV on antiretroviral therapy (ART)
- Participants who are hepatitis B surface antigen (HBsAg) positive are eligible if they have received hepatitis B virus (HBV) antiviral therapy for at least 4 weeks and have undetectable HBV viral load before randomization
- Participants with history of hepatitis C virus (HCV) infection are eligible if HCV viral load is undetectable at Screening.
- Participants who can produce sperm must agree to the following during the study treatment period and for at least 7 days after the last dose of opevesostat, for at least 30 days after the last dose of abiraterone acetate, and for at least 3 months after the last dose of enzalutamide: EITHER be abstinent OR must agree to use male condom
Who cannot join
- Has a gastrointestinal disorder that might affect absorption
- Has a history of pituitary dysfunction
- Has poorly controlled diabetes mellitus
- Has clinically significant abnormal serum potassium or sodium level
- Has a history of active or unstable cardio/cerebro-vascular disease, including thromboembolic events
- Has a history of seizure within 6 months of providing documented informed consent or any condition that may predispose to seizures within 12 months before the date of randomization
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- Has a history of clinically significant ventricular arrhythmias
- Has received an anticancer monoclonal antibody (mAb) within 4 weeks before the date of randomization, or has not recovered from adverse events (AEs) due to mAbs administered more than 4 weeks before the date of randomization
- Has undergone major surgery, including local prostate intervention (except prostate biopsy), within 28 days before the date of randomization, and has not recovered from the toxicities and/or complications
- Participants who have not adequately recovered from major surgery or have ongoing surgical complications
- Has used herbal or medicinal products that may have hormonal anti-prostate cancer activity and/or are known to decrease prostate-specific Antigen (PSA) (eg, saw palmetto, megesterol acetate, citrus pectin polysaccharide) within 4 weeks before the date of randomization
- Has received radium-223 or Lutetium-177 within 4 weeks before the date of randomization, or has not recovered to Grade ≤1 or baseline from AEs due to radium-223 or Lutetium-177 administered more than 4 weeks before the date of randomization
- Has received treatment with 5-αreductase inhibitors (eg, finasteride or dutasteride), estrogens, or cyproterone within 4 weeks before the date of randomization
- Has received colony-stimulating factors within 28 days before the date of randomization
- Has received a whole blood transfusion in the last 120 days before the date of randomization. Packed red blood cells and platelet transfusions are acceptable if not given within 28 days of the date of randomization
- Has received prior targeted small molecule therapy or NHA treatment within 4 weeks before the first dose of study intervention as follows: enzalutamide or apalutamide within 3 weeks or abiraterone acetate + prednisone or darolutamide within 2 weeks
- Has a "superscan" bone scan
- Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior the first dose of study medication
- Has a known additional malignancy that is progressing or has required active treatment within the past 3 years
- Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis
- Has an active autoimmune disease that has required systemic treatment in past 2 years
- Has an active infection requiring systemic therapy
- Has concurrent active HBV or known active HCV infection
- Has a history of long QTc syndrome
- Has any of the following at Screening Visit: hypotension (systolic BP <110 mm Hg) or uncontrolled hypertension (systolic BP ≥160 mm Hg or diastolic BP ≥90 mm Hg, in 2 out of 3 recordings with optimized antihypertensive therapy)
- Is unable to swallow capsules/tablets
- Is currently being treated with cytochrome 450-inducing antiepileptic drugs for seizures
- Participants on an unstable dose of thyroid hormone therapy within 6 months before the start of the study intervention
- Received prior systemic anticancer therapy including investigational agents within 4 weeks before the first dose of study intervention
- Received prior radiotherapy within 2 weeks of start of study intervention, or radiation-related toxicities, requiring corticosteroids
- Received a live or live-attenuated vaccine within 30 days before the first dose of study intervention
- Systemic use of the following medications within 2 weeks before the first dose of study intervention: strong CYP3A4 inducers (eg, avasimibe, carbamazepine, lumacaftor, phenobarbital, rifampicin, rifapentine, or St John's Wort); P-gp inhibitors (eg, erythromycin, clarithromycin, rifampicin, ketoconazole, itraconazole, posaconazole, artesunate-pyronaridine, ritonavir, indinavir, nelfinavir, atazanavir, glecaprevir-pibrentasvir, simeprevir, ledipasvir-sofosbuvir, verapamil, diltiazem, dronedarone, propafenone, quinidine, cyclosporine, valspodar, or milk thistle [Silybum marianum])
- Use of aldosterone antagonist (eg, spironolactone, eplerenone) and phenytoin within 4 weeks before the start of the study intervention
Trial locations and contacts
288 sites in 36 countries. Contact the study team or a site near you to ask about taking part.
288 sites in 36 countries
United States48 sites, 33 recruiting
- Recruiting
Avera Cancer Institute - Aberdeen ( Site 0123)
Aberdeen, South Dakota, 57401
Study Coordinator, 605-601-1830
- Recruiting
Anschutz Cancer Pavilion ( Site 0046)
Aurora, Colorado, 80045
Study Coordinator, 302-290-3598
- Recruiting
Texas Oncology - Central/South Texas ( Site 8003)
Austin, Texas, 78731
Study Coordinator, 512-427-9400
- Recruiting
Baltimore Veterans Affairs Medical Center ( Site 0069)
Baltimore, Maryland, 21201
Study Coordinator, 410-707-4011
- Recruiting
Greenebaum Comprehensive Cancer Center ( Site 0049)
Baltimore, Maryland, 21201
Study Coordinator, 410-707-4011
- Completed
Ralph H. Johnson VA Health Care System (RHJVAHCS)-Urology ( Site 0083)
Charleston, South Carolina, 29401
- Recruiting
University of Virginia Health System ( Site 0054)
Charlottesville, Virginia, 22908
Study Coordinator, 434-327-3029
- Recruiting
University of Illinois at Chicago ( Site 0105)
Chicago, Illinois, 60612
Study Coordinator, 973-330-2391
- Recruiting
University of Chicago Medical Center ( Site 0045)
Chicago, Illinois, 60637
Study Coordinator, 773-702-7609
- Recruiting
University Hospitals Cleveland Medical Center ( Site 0043)
Cleveland, Ohio, 44106
Study Coordinator, 216-844-3951
- Completed
Texas Oncology - DFW ( Site 8001)
Dallas, Texas, 75246
- Completed
Henry Ford Hospital ( Site 0015)
Detroit, Michigan, 48202
- Completed
Florida Cancer Specialists - South ( Site 7003)
Fort Myers, Florida, 33901
- Recruiting
Hattiesburg Clinic Hematology/Oncology ( Site 0120)
Hattiesburg, Mississippi, 39401
Study Coordinator, 601-261-1700
- Recruiting
University of Colorado Health - Highlands Ranch Hospital ( Site 0111)
Highlands Ranch, Colorado, 80129
Study Coordinator, 302-290-3598
- Recruiting
Texas Oncology - Gulf Coast ( Site 8002)
Houston, Texas, 77024
Study Coordinator, 713-467-1722
- Completed
University of Iowa ( Site 0047)
Iowa City, Iowa, 52242
- Completed
Colorado Clinical Research ( Site 0067)
Lakewood, Colorado, 80228
- Recruiting
Comprehensive Cancer Centers of Nevada ( Site 0010)
Las Vegas, Nevada, 89148
Study Coordinator, 702-952-1251
- Completed
University of Kentucky Chandler Medical Center ( Site 0048)
Lexington, Kentucky, 40536
- Recruiting
University of Colorado Health - Lone Tree Medical Center ( Site 0112)
Lone Tree, Colorado, 80124
Study Coordinator, 720-848-5146
- Recruiting
Avera Cancer Institute - Marshall ( Site 0122)
Marshall, Minnesota, 56258
Study Coordinator, 605-601-1830
- Completed
Bruce W. Carter Veterans Affairs Medical Center ( Site 0082)
Miami, Florida, 33125
- Recruiting
University of Miami Hospital and Clinics, Sylvester Cancer Center ( Site 0051)
Miami, Florida, 33136
Study Coordinator, 305-243-1543
- Recruiting
Medical College of Wisconsin ( Site 0020)
Milwaukee, Wisconsin, 53226
Study Coordinator, 414-805-4600
- Recruiting
M Health Fairview Clinics and Surgery Center ( Site 0019)
Minneapolis, Minnesota, 55455
Study Coordinator, 612-626-1422
- Recruiting
Avera Cancer Institute - Mitchell ( Site 0121)
Mitchell, South Dakota, 57301
Study Coordinator, 605-601-1830
- Recruiting
Atlantic Health System Morristown Medical Center ( Site 0115)
Morristown, New Jersey, 07960
Study Coordinator, 973-971-7960
- Recruiting
SCRI Oncology Partners ( Site 7000)
Nashville, Tennessee, 37203
Study Coordinator, 615-218-4647
- Completed
Rutgers Cancer Institute of New Jersey ( Site 0033)
New Brunswick, New Jersey, 08903
- Recruiting
Yale-New Haven Hospital-Yale Cancer Center ( Site 0064)
New Haven, Connecticut, 06510
Study Coordinator, 203-737-8076
- Completed
Ochsner Clinic Foundation ( Site 0108)
New Orleans, Louisiana, 70121
- Recruiting
University Of Nebraska Medical Center-Oncology/Hematology ( Site 0095)
Omaha, Nebraska, 68105
Study Coordinator, 402-559-8500
- Completed
University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 0040)
Orange, California, 92868
- Recruiting
Stanford Cancer Center ( Site 0036)
Palo Alto, California, 94304
Study Coordinator, 650-725-2078
- Recruiting
Avera Cancer Institute - Pierre ( Site 0118)
Pierre, South Dakota, 57501
Study Coordinator, 605-224-3370
- Completed
AHN Allegheny General Hospital ( Site 0001)
Pittsburgh, Pennsylvania, 15212
- Completed
Oregon Health and Science University ( Site 0028)
Portland, Oregon, 97239
- Recruiting
VA Portland Health Care System ( Site 0058)
Portland, Oregon, 97239
Study Coordinator, 503-220-8262
- Completed
VCU Health Adult Outpatient Pavillion ( Site 0061)
Richmond, Virginia, 23219
- Recruiting
Kaiser Permanente Riverside Medical Center ( Site 0099)
Riverside, California, 92505
Study Coordinator, 951-809-8361
- Recruiting
Blue Ridge Cancer Care ( Site 0004)
Roanoke, Virginia, 24014
Study Coordinator, 540-982-0237
- Active, not recruiting
Metro-Minnesota Community Clinical Oncology ( Site 0014)
Saint Louis Park, Minnesota, 55416
- Recruiting
Fred Hutchinson Cancer Center ( Site 0013)
Seattle, Washington, 98109
Study Coordinator, 617-413-9079
- Recruiting
Avera Cancer Institute- Research ( Site 0094)
Sioux Falls, South Dakota, 57105
Study Coordinator, 605-322-6900
- Recruiting
Washington University School of Medicine-Internal Medicine/Oncology ( Site 0062)
St Louis, Missouri, 63110
Study Coordinator, 314-286-2341
- Recruiting
James J. Peters VA Medical Center ( Site 0088)
The Bronx, New York, 10468
Study Coordinator, 718-584-9000
- Recruiting
Avera Cancer Institute - Yankton ( Site 0117)
Yankton, South Dakota, 57078
Study Coordinator, 605-655-1800
China39 sites, 39 recruiting
- Recruiting
Peking University First Hospital-Urology ( Site 0390)
Beijing, Beijing Municipality, 100034
Study Coordinator, +86 (010) 64008229
- Recruiting
Beijing Friendship Hospital Affiliate of Capital University ( Site 0396)
Beijing, Beijing Municipality, 100050
Study Coordinator, +86(010)63138375
- Recruiting
Beijing Cancer hospital-Urinary Surgery ( Site 0395)
Beijing, Beijing Municipality, 100142
Study Coordinator, 86 010 8812 1122
- Recruiting
Hunan Cancer Hospital ( Site 0405)
Changsha, Hunan, 410013
Study Coordinator, 073189762270
- Recruiting
The Third People's Hospital of Chengdu (CDTPH) ( Site 0428)
Chengdu, Sichuan, 500643
Study Coordinator, 67566947
- Recruiting
West China Hospital, Sichuan University-Urology Surgery ( Site 0417)
Chengdu, Sichuan, 610041
Study Coordinator, +86028-85422114
- Recruiting
The First Affiliated Hospital of Chongqing Medical University ( Site 0427)
Chongqing, Chongqing Municipality, 400010
Study Coordinator, 023 89012012
- Recruiting
Chongqing University Cancer Hospital ( Site 0416)
Chongqing, Chongqing Municipality, 400030
Study Coordinator, 02365075629
- Recruiting
Southwest Hospital of Third Military Medical University ( Site 0420)
Chongqing, Chongqing Municipality, 400038
Study Coordinator, 023 68765878
- Recruiting
Chongqing Three Gorges Central Hospital's ( Site 0426)
Chongqing, Chongqing Municipality, 404100
Study Coordinator, 023 58103150
- Recruiting
The First Affiliated Hospital Of Fujian Medical University-Urology ( Site 0414)
Fuzhou, Fujian, 350005
Study Coordinator, +86059187983333
- Recruiting
The First Affiliated Hospital of Guangzhou Medical University ( Site 0412)
Guangzhou, Guangdong, 510230
Study Coordinator, +8602034294311
- Recruiting
Sun Yat-sen University Cancer Center-Internal medicine ( Site 0413)
Guangzhou, Guangdong, 511400
Study Coordinator, +8602087343533
- Recruiting
Zhejiang Provincial People's Hospital-Urology ( Site 0378)
Hangzhou, Zhejiang, 310014
Study Coordinator, +86 13858019285
- Recruiting
Zhejiang Cancer Hospital ( Site 0435)
Hangzhou, Zhejiang, 310022
Study Coordinator, 0571-88122261
- Recruiting
Second Affiliated hospital of Anhui Medical University-Urology ( Site 0408)
Hefei, Anhui, 230000
Study Coordinator, +86 02782201756
- Recruiting
First Huai'an Hospital Affiliated to Nanjing Medical University ( Site 0436)
Huaian, Jiangsu, 223300
Study Coordinator, 0517-80872519
- Recruiting
The First Hospital of Jiaxing-urology ( Site 0380)
Jiaxing, Zhejiang, 314001
Study Coordinator, +86 13957391616
- Recruiting
The Second Affiliated Hospital Of Kunming Medical University ( Site 0429)
Kunming, Yunnan, 650033
Study Coordinator, 087165351281
- Recruiting
Yunnan Province Cancer Hospital ( Site 0418)
Kunming, Yunnan, 650107
Study Coordinator, 0871-68179210
- Recruiting
Jiangxi Cancer Hospital ( Site 0386)
Nanchang, Jiangxi, 330029
Study Coordinator, 86079188317256
- Recruiting
Nanchong Central Hospital-urology ( Site 0422)
Nanchong, Sichuan, 500643
Study Coordinator, 08172606822
- Recruiting
Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School-Urology ( Site 0377)
Nanjing, Jiangsu, 210008
Study Coordinator, 025-83105910
- Recruiting
The First Affiliated Hospital of Ningbo University ( Site 0383)
Ningbo, Zhejiang, 315010
Study Coordinator, 86057487085588
- Recruiting
Fudan University Shanghai Cancer Center-Urology department ( Site 0376)
Shanghai, Shanghai Municipality, 200000
Study Coordinator, 021-38196379
- Recruiting
Zhongshan Hospital Fudan University ( Site 0430)
Shanghai, Shanghai Municipality, 200032
Study Coordinator, 021-31587858
- Recruiting
Huadong Hospital Affiliated to Fudan University-Urology ( Site 0388)
Shanghai, Shanghai Municipality, 200041
Study Coordinator, 021-62483180
- Recruiting
Suining Central Hospital ( Site 0437)
Suining, Sichuan, 629000
Study Coordinator, 08252292093
- Recruiting
Tianjin Medical University Cancer Institute & Hospital ( Site 0392)
Tianjin, Tianjin Municipality, 300060
Study Coordinator, +862223340123
- Recruiting
The Second Hospital of Tianjin Medical University ( Site 0391)
Tianjin, Tianjin Municipality, 300211
Study Coordinator, +8602288326748
- Recruiting
Xinjiang Medical University Cancer Hospital - Urumqi-Urology ( Site 0419)
Ürümqi, Xinjiang, 830000
Study Coordinator, 86 09917819156
- Recruiting
The First Affiliated Hospital of Wenzhou Medical University-Urology Surgery ( Site 0379)
Wenzhou, Zhejiang, 325000
Study Coordinator, +8618267857001
- Recruiting
Tongji Hospital Tongji Medical,Science & Technology ( Site 0407)
Wuhan, Hubei, 430000
Study Coordinator, 027-83665555
- Recruiting
Hubei Cancer Hospital-Urinary surgery ( Site 0406)
Wuhan, Hubei, 430079
Study Coordinator, 8613907110640
- Recruiting
Affiliated hospital of Jiangnan university ( Site 0434)
Wuxi, Jiangsu, 214122
Study Coordinator, 0510-88682957
- Recruiting
The Second Affiliated Hospital of Xi'an Jiaotong University ( Site 0394)
Xi'an, Shaanxi, 710004
Study Coordinator, 029-87679000
- Recruiting
The First Affiliated Hospital of Xi'an Jiaotong University-Oncology ( Site 0393)
Xi'an, Shaanxi, 710061
Study Coordinator, 029-85323112
- Recruiting
The First Affiliated hospital of Xiamen University-Urology ( Site 0415)
Xiamen, Fujian, 361003
Study Coordinator, 0592-2132222
- Recruiting
Yantai Yuhuangding Hospital ( Site 0397)
Yantai, Shandong, 264099
Study Coordinator, 86 0535 6691999
Japan30 sites, 27 recruiting
- Recruiting
Akita University Hospital ( Site 0904)
Akita, 010-8543
Study Coordinator, +81188341111
- Recruiting
Asahikawa Medical University Hospital ( Site 0901)
Asahikawa, Hokkaido, 078-8510
Study Coordinator, +81-166-65-2111
- Recruiting
Kyushu University Hospital ( Site 0919)
Fukuoka, 812-8582
Study Coordinator, +81926411151
- Recruiting
Fukushima Medical University Hospital ( Site 0933)
Fukushima, 960-1295
Study Coordinator, +81245471111
- Recruiting
Gifu University Hospital ( Site 0910)
Gifu, 501-1112
Study Coordinator, +81-58-230-6000
- Recruiting
Kansai Medical University Hospital ( Site 0912)
Hirakata, Osaka, 573-1191
Study Coordinator, +81-72-804-0101
- Recruiting
Hiroshima University Hospital ( Site 0916)
Hiroshima, 734-8551
Study Coordinator, +81-82-257-5555
- Recruiting
Kagoshima University Hospital ( Site 0929)
Kagoshima, 890-8520
Study Coordinator, +81-99-275-5111
- Completed
Nara Medical University Hospital ( Site 0915)
Kashihara, Nara, 634-8522
- Recruiting
Kagawa University Hospital ( Site 0917)
Kita, Kagawa-ken, 761-0701
Study Coordinator, +81878985111
- Completed
Hospital of the University of Occupational and Environmental Health, Japan ( Site 0921)
Kitakyushu, Fukuoka, 807-8556
- Recruiting
Kobe University Hospital ( Site 0914)
Kobe, Hyōgo, 650-0017
Study Coordinator, +81783825111
- Recruiting
National Hospital Organization Kumamoto Medical Center ( Site 0924)
Kumamoto, 860-0008
Study Coordinator, +81963536501
- Recruiting
Kurume University Hospital ( Site 0920)
Kurume, Fukuoka, 830-0011
Study Coordinator, +81-942-35-3311
- Completed
The Jikei University Hospital ( Site 0907)
Minato, Tokyo, 105-8471
- Recruiting
Miyazaki Prefectural Miyazaki Hospital ( Site 0927)
Miyazaki, 880-8510
Study Coordinator, +81985244181
- Recruiting
University of Miyazaki Hospital ( Site 0926)
Miyazaki, 889-1692
Study Coordinator, +81-98-585-1510
- Recruiting
Kanazawa Medical University Hospital ( Site 0909)
Mukai-awagasaki, Ishikawa-ken, 920-0265
Study Coordinator, +81-76-286-3511
- Recruiting
Nagano Municipal Hospital ( Site 0932)
Nagano, 381-8551
Study Coordinator, +81-26-295-1199
- Recruiting
National Hospital Organization Oita Medical Center ( Site 0925)
Ōita, 870-0263
Study Coordinator, +81-97-593-1111
- Recruiting
National Hospital Organization Nagasaki Medical Center ( Site 0923)
Ōmura, Nagasaki, 856-8562
Study Coordinator, +81-957-52-3121
- Recruiting
Saga-Ken Medical Centre Koseikan ( Site 0922)
Saga, Saga-ken, 840-8571
Study Coordinator, +81952242171
- Recruiting
Bell Land General Hospital ( Site 0913)
Sakai, Osaka, 599-8247
Study Coordinator, +81722342001
- Recruiting
Toho University Sakura Medical Center ( Site 0906)
Sakura, Chiba, 285-8741
Study Coordinator, +81434628811
- Recruiting
Sapporo Medical University Hospital ( Site 0902)
Sapporo, Hokkaido, 060-8543
Study Coordinator, +81-11-611-2111
- Recruiting
Hokkaido University Hospital ( Site 0931)
Sapporo, Hokkaido, 060-8648
Study Coordinator, +81117161161
- Recruiting
Nanbu Tokushukai Hospital ( Site 0930)
Shimajiri, Okinawa, 901-0417
Study Coordinator, +81-98-998-3221
- Recruiting
The University of Osaka Hospital ( Site 0911)
Suita, Osaka, 565-0871
Study Coordinator, +81668795111
- Recruiting
Ehime University Hospital ( Site 0918)
Tōon, Ehime, 791-0295
Study Coordinator, +81-89-964-5111
- Recruiting
Yokohama City University Medical Center ( Site 0908)
Yokohama, Kanagawa, 232-0024
Study Coordinator, +81452615656
Netherlands11 sites, 7 recruiting
- Recruiting
Meander Medisch Centrum ( Site 1157)
Amersfoort, Utrecht, 3813 TZ
Study Coordinator, +003133 - 850 1189
- Recruiting
Nederlands Kanker Instituut - Antoni van Leeuwenhoek - NKI-AVL ( Site 1153)
Amsterdam, North Holland, 1066 CX
Study Coordinator, +31205122569
- Completed
Amsterdam UMC, locatie VUmc ( Site 1156)
Amsterdam, North Holland, 1081 HV
- Active, not recruiting
Spaarne Gasthuis - Hoofddorp-Oncology ( Site 1170)
Hoofddorp, North Holland, 2134 TM
- Active, not recruiting
Medische Centrum Leeuwarden ( Site 1172)
Leeuwarden, Provincie Friesland, 8934 AD
- Recruiting
Radboudumc-Medical Oncology ( Site 1152)
Nijmegen, Gelderland, 6525 GA
Study Coordinator, +31 (0)24 361 0353
- Recruiting
Franciscus Gasthuis & Vlietland, Locatie Vlietland ( Site 1151)
Schiedam, South Holland, 3118 JH
Study Coordinator, 003110- 4617590
- Recruiting
Zuyderland Medical Centre-Trialbureau Interne Geneeskunde ( Site 1163)
Sittard-Geleen, Limburg, 6162 BG
Study Coordinator, +31884599740
- Recruiting
Haga Ziekenhuis locatie Leyweg-Oncology ( Site 1164)
The Hague, South Holland, 2545 AA
Study Coordinator, +31702102143
- Recruiting
ETZ Elisabeth-Internal Medicine ( Site 1160)
Tilburg, North Brabant, 5022 GC
Study Coordinator, +3113221 0210
- Completed
VieCuri Medisch Centrum ( Site 1173)
Venlo, Limburg, 5912 BL
Turkey (Türkiye)9 sites, 9 recruiting
- Recruiting
Baskent University Dr. Turgut Noyan Research and Training Center-ONCOLOGY ( Site 1554)
Adana, 01250
Study Coordinator, +903223444444
- Recruiting
Gulhane Egitim Arastirma Hastanesi ( Site 1558)
Ankara, 06010
Study Coordinator, 00903123042020
- Recruiting
Hacettepe Universite Hastaneleri-oncology hospital ( Site 1551)
Ankara, 06230
Study Coordinator, +90 (312) 305 29 41
- Recruiting
Memorial Ankara Hastanesi-Medical Oncology ( Site 1557)
Ankara, 06520
Study Coordinator, 903122536666
- Recruiting
Ankara Bilkent Şehir Hastanesi-Medical Oncology ( Site 1552)
Ankara, 06800
Study Coordinator, 00903125526060
- Recruiting
Koc Universitesi Hastanesi ( Site 1561)
Istanbul, 34010
Study Coordinator, +908502508250
- Recruiting
Istanbul Universitesi Cerrahpasa-Medical Oncology ( Site 1555)
Istanbul, 34668
Study Coordinator, 0090212 414 30 00
- Recruiting
TC Saglik Bakanligi Goztepe Prof. Dr. Suleyman Yalcin Sehir Hastanesi-oncology ( Site 1553)
Istanbul, 34722
Study Coordinator, +902166065200
- Recruiting
Samsun Medical Park Hastanesi-medical oncology ( Site 1560)
Samsun, 55200
Study Coordinator, +90 (539) 780 90 07
Brazil8 sites, 7 recruiting
- Recruiting
Hospital Felicio Rocho ( Site 0317)
Belo Horizonte, Minas Gerais, 30110-934
Study Coordinator, +55 31 35147195
- Recruiting
Hospital Mario Penna ( Site 0309)
Belo Horizonte, Minas Gerais, 30380-472
Study Coordinator, +551 31 3299-9543
- Recruiting
Hospital Universitário São Francisco de Assis - Bragança Paulista ( Site 0308)
Bragança Paulista, São Paulo, 12916-542
Study Coordinator, +55 11 98337-1381
- Recruiting
Hospital Universitário Evangélico Mackenzie-Centro de Oncologia Mackenzie ( Site 0314)
Curitiba, Paraná, 80440-220
Study Coordinator, 5541991681411
- Recruiting
Clínica de Neoplasias Litoral ( Site 0305)
Itajaí, Santa Catarina, 88301-220
Study Coordinator, +5547984046243
- Recruiting
Obras Sociais Irma Dulce ( Site 0302)
Salvador, Estado de Bahia, 41680-430
Study Coordinator, +55 71 3310-1978
- Active, not recruiting
A. C. Camargo Cancer Center ( Site 0310)
São Paulo, São Paulo, 01509-010
- Recruiting
Hospital Santa Rita de Cassia-Centro de Pesquisa Clínica ( Site 0320)
Vitória, Espírito Santo, 29041-295
Study Coordinator, +55 27 3334-8346
Canada8 sites, 6 recruiting
- Recruiting
Cross Cancer Institute ( Site 0332)
Edmonton, Alberta, T6G 1Z2
Study Coordinator, 7804328762
- Recruiting
Centre Intégré de Santé et de Services Sociaux de la Montérégie-Centre ( Site 0328)
Greenfield Park, Quebec, J4V 2H1
Study Coordinator, 4504665000 ext 3226
- Active, not recruiting
Centre Hospitalier de l'Université de Montréal ( Site 0326)
Montreal, Quebec, H2X 3E4
- Recruiting
The Ottawa Hospital - General Campus-The Ottawa Hospital Cancer Centre ( Site 0336)
Ottawa, Ontario, K1H 8L6
Study Coordinator, 613-737-7700
- Recruiting
Centre intégré de cancérologie du CHU de Québec Université Laval, Hôpital de l'Enfant-Jésus ( Site 0327)
Québec, Quebec, G1J 1Z4
Study Coordinator, 418 525-4444
- Active, not recruiting
Centre intégré universitaire de santé et de services sociaux de l'Estrie - Centre Hospitalier Univer ( Site 0329)
Sherbrooke, Quebec, J1H 5H4
- Recruiting
Sunnybrook Research Institute ( Site 0331)
Toronto, Ontario, M4N 3M5
Study Coordinator, 647-533-1023
- Recruiting
Princess Margaret Cancer Centre ( Site 0330)
Toronto, Ontario, M5G 2M9
Study Coordinator, (416) 946-4501
France8 sites, 7 recruiting
- Recruiting
Centre Hospitalier de la Cote Basque ( Site 0633)
Bayonne, Pyrenees-Atlantiques, 64109
Study Coordinator, 33559443535
- Recruiting
Centre Jean Perrin - Centre Régional de Lutte contre le Cancer d'Auvergne ( Site 0629)
Clermont-Ferrand, Puy-de-Dome, 63003
Study Coordinator, +33473278005
- Recruiting
Centre Oscar Lambret ( Site 0634)
Lille, Ain, 59020
Study Coordinator, +33320295959
- Recruiting
Centre Hospitalier Universitaire de Nîmes - Institut de Cancérologie du Gard - Hôpital Universitaire ( Site 0630)
Nîmes, Gard, 30029
Study Coordinator, +33466683301
- Active, not recruiting
Hôpital Européen Georges Pompidou ( Site 0628)
Paris, 75015
- Recruiting
Centre Eugène Marquis Rennes - Centre de Lutte Contre le Cancer ( Site 0632)
Rennes, Ille-et-Vilaine, 35042
Study Coordinator, +33299253182
- Recruiting
Hopitaux Universitaires de Strasbourg ( Site 0627)
Strasbourg, Bas-Rhin, 67200
Study Coordinator, +33368767207
- Recruiting
Gustave Roussy ( Site 0626)
Villejuif, Val-de-Marne, 94800
Study Coordinator, +33 1 42 11 42 11
Germany8 sites, 7 recruiting
- Recruiting
Charité Universitaetsmedizin Berlin - Campus Mitte ( Site 0679)
Berlin, 10117
Study Coordinator, 0049 30 450615285
- Recruiting
Universitätsklinikum Bonn-Klinik und Poliklinik für Urologie und Kinderurologie ( Site 0680)
Bonn, North Rhine-Westphalia, 53127
Study Coordinator, +4922828714249
- Recruiting
Universitaetsklinikum Hamburg-Eppendorf-Onkologisches Zentrum ( Site 0705)
Hamburg, 20246
Study Coordinator, +4915222815585
- Recruiting
Universitätsklinikum Jena-Klinik und Poliklinik für Urologie ( Site 0682)
Jena, Thuringia, 07747
Study Coordinator, +49 3641 9 32 9947
- Recruiting
Universitätsklinikum Schleswig-Holstein-Klinik für Urologie ( Site 0691)
Lübeck, Schleswig-Holstein, 23538
Study Coordinator, +4945150043699
- Active, not recruiting
klinikum rechts der isar der technischen universität münchen-Urologische Klinik und Poliklinik ( Site 0696)
Munich, Bavaria, 81675
- Recruiting
Universitätsklinikum Münster - Albert Schweitzer Campus-Klinik für Urologie ( Site 0678)
Münster, North Rhine-Westphalia, 48149
Study Coordinator, 0049251-8344658
- Recruiting
HELIOS Kliniken Schwerin ( Site 0694)
Schwerin, Mecklenburg-Vorpommern, 19055
Study Coordinator, +493855202120
Argentina7 sites, 4 recruiting
- Recruiting
Asociación de Beneficencia Hospital Sirio Libanés ( Site 0205)
Buenos Aires, Buenos Aires F.D., C1419AHN
Study Coordinator, +5491145744343
- Recruiting
Instituto Alexander Fleming-Alexander Fleming ( Site 0206)
Buenos Aires, Buenos Aires F.D., C1426ANZ
Study Coordinator, +5491132218900
- Active, not recruiting
Hospital Aleman-Oncology ( Site 0207)
Buenos Aires, C1118AAT
- Active, not recruiting
Hospital Británico de Buenos Aires-Oncology ( Site 0202)
Ciudad Autónoma de Buenos Aires, Buenos Aires, C1280AEB
- Active, not recruiting
Instituto de Investigaciones Clínicas Mar del Plata ( Site 0201)
Mar del Plata, Buenos Aires, B7600FZO
- Recruiting
Fundacion Centro Oncologico de Integración Regional-Medical Oncology ( Site 0204)
Mendoza, M5500AYB
Study Coordinator, +5492615449901
- Recruiting
Sanatorio Parque ( Site 0208)
Rosario, Santa Fe Province, S2000DSV
Study Coordinator, +5493414200222
Chile7 sites, 4 recruiting
- Recruiting
Bradford Hill Norte ( Site 0357)
Antofagasta, 1240000
Study Coordinator, 56442023631
- Completed
IC La Serena Research ( Site 0356)
La Serena, Coquimbo Region, 1720430
- Active, not recruiting
Fundación Arturo López Pérez ( Site 0353)
Santiago, Region M. de Santiago, 7500921
- Recruiting
Pontificia Universidad Catolica de Chile-Hemato-Oncology ( Site 0354)
Santiago, Region M. de Santiago, 8330024
Study Coordinator, +56934331806
- Recruiting
Bradfordhill-Clinical Area ( Site 0351)
Santiago, Region M. de Santiago, 8420383
Study Coordinator, +56229490970
- Recruiting
Clinica Universidad Catolica del Maule-Oncology ( Site 0355)
Talca, Maule Region, 3465584
Study Coordinator, +56947532700
- Active, not recruiting
Clinical Research Chile SpA ( Site 0358)
Valdivia, Los Ríos Region, 5110683
Poland7 sites, 4 recruiting
- Active, not recruiting
Centrum Onkologii im. Prof. Franciszka Lukaszczyka ( Site 1302)
Bydgoszcz, Kuyavian-Pomeranian Voivodeship, 85-796
- Completed
Regionalny Szpital Specjalistyczny im. dr. Władyslawa Biegańskiego ( Site 1316)
Grudziądz, Kuyavian-Pomeranian Voivodeship, 86-300
- Recruiting
Swietokrzyskie Centrum Onkologii, Samodzielny Publiczny Zakl-Klinika Onkologii Klinicznej, Dzial Ch ( Site 1318)
Kielce, Świętokrzyskie Voivodeship, 25-734
Study Coordinator, +48413674811
- Recruiting
Szpital Wojewódzki im. Mikoaja Kopernika w Koszalinie-Oddzial Dzienny Chemioterapii ( Site 1303)
Koszalin, West Pomeranian Voivodeship, 75-581
Study Coordinator, +48943488930
- Recruiting
Mazowiecki Szpital Wojewódzki w Siedlcach-Siedleckie Centrum Onkologii ( Site 1310)
Siedlce, Masovian Voivodeship, 08-110
Study Coordinator, +48256403301
- Recruiting
Zachodniopomorskie Centrum Onkologii ( Site 1311)
Szczecin, West Pomeranian Voivodeship, 71-730
Study Coordinator, +48914251502
- Completed
Wojewodzki Szpital Zespolony im Ludwika Rydygiera w Toruniu ( Site 1304)
Torun, Kuyavian-Pomeranian Voivodeship, 87-100
Spain7 sites, 7 recruiting
- Recruiting
Hospital Jerez de la Frontera ( Site 1427)
Jerez de la Frontera, Cadiz, 11407
Study Coordinator, +34661753582
- Recruiting
Hospital Lucus Augusti-Oncology ( Site 1432)
Lugo, 27003
Study Coordinator, +34982296459
- Recruiting
Hospital Universitario Ramón y Cajal-Medical Oncology ( Site 1431)
Madrid, Madrid, Comunidad de, 28034
Study Coordinator, 34913368263
- Recruiting
Hospital Universitario 12 de Octubre-Medical Oncology ( Site 1433)
Madrid, Madrid, Comunidad de, 28041
Study Coordinator, 608464547
- Recruiting
Complexo Hospitalario Universitario de Ourense ( Site 1426)
Ourense, Orense, 32005
Study Coordinator, +34988385471
- Recruiting
HOSPITAL UNIVERSITARIO VIRGEN DEL ROCIO-Medical Oncology ( Site 1428)
Seville, 41013
Study Coordinator, 34955013068
- Recruiting
Fundación Instituto Valenciano de Oncología-Oncologico ( Site 1430)
Valencia, Valenciana, Comunitat, 46009
Study Coordinator, +34 961114229
Colombia6 sites, 5 recruiting
- Recruiting
Clinica Colsanitas S.A, Sede Clínica Universitaria Colombia-Center Investigator ( Site 0501)
Bogotá, Bogota D.C., 111321
Study Coordinator, 6017058333
- Recruiting
Fundación Valle del Lili ( Site 0505)
Cali, Valle del Cauca Department, 760032
Study Coordinator, +573133288646
- Completed
Clínica Imbanaco S.A.S ( Site 0509)
Cali, Valle del Cauca Department, 760042
- Recruiting
IMAT S.A.S ( Site 0504)
Montería, Departamento de Córdoba, 230002
Study Coordinator, +573135342052
- Recruiting
Fundación Cardiovascular de Colombia ( Site 0503)
Piedecuesta, Santander Department, 681017
Study Coordinator, +573203400438
- Recruiting
Sociedad De Oncología y Hematología Del Cesar SAS-Oncology ( Site 0502)
Valledupar, Cesar Department, 200001
Study Coordinator, +57 3158505190
Israel6 sites, 6 recruiting
- Recruiting
Emek Medical Center ( Site 0830)
Afula, 1834111
Study Coordinator, 0546708579
- Recruiting
Rambam Health Care Campus-Oncology Division ( Site 0826)
Haifa, 3109601
Study Coordinator, 04-7776234
- Recruiting
Hadassah Medical Center ( Site 0833)
Jerusalem, 9112001
Study Coordinator, 02-6777111
- Recruiting
Meir Medical Center. ( Site 0832)
Kfar Saba, 4428164
Study Coordinator, 0503745684
- Recruiting
Rabin Medical Center ( Site 0828)
Petah Tikva, 4941492
Study Coordinator, 972-50-3745684
- Recruiting
Sheba Medical Center ( Site 0827)
Ramat Gan, 5265601
Study Coordinator, : +972-35302191
Mexico6 sites, 5 recruiting
- Recruiting
CIO - Centro de Inmuno-Oncología de Occidente ( Site 1103)
Guadalajara, Jalisco, 44630
Study Coordinator, +52 3313587270
- Completed
Medical Care and Research SA de CV ( Site 1108)
Mérida, Yucatán, 97070
- Recruiting
Quemex Medical and Research ( Site 1112)
Mexico City, Mexico City, 14308
Study Coordinator, +52555673461
- Recruiting
Centro de Investigacion Clinica de Oaxaca ( Site 1109)
Mexico City, Mexico City, 68020
Study Coordinator, +529515473137
- Recruiting
Filios Alta Medicina ( Site 1106)
Monterrey, Nuevo León, 64460
Study Coordinator, +528110623583
- Recruiting
Hospital Universitario "Dr. Jose Eleuterio Gonzalez"-Servicio de Oncología ( Site 1107)
Monterrey, Nuevo León, 64460
Study Coordinator, +528183338111 Ext.9
Peru6 sites, 3 recruiting
- Recruiting
Instituto Regional de Enfermedades Neoplasicas del Centro (IREN CENTRO) ( Site 1258)
Concepción, Departamento de Junín, 12125
Study Coordinator, +51 958864658
- Active, not recruiting
Aliada-Oncologìa ( Site 1257)
Lima, 15036
- Active, not recruiting
IPOR Instituto Peruano de Oncología & Radioterapia-Centro de Investigación ( Site 1254)
Lima, 15036
- Active, not recruiting
Oncosalud-Clinical Research ( Site 1260)
Lima, 15036
- Recruiting
INSTITUTO NACIONAL DE ENFERMEDADES NEOPLASICAS-Medical Oncology ( Site 1256)
Lima, 15038
Study Coordinator, +511 2016500
- Recruiting
Clínica Sánchez Ferrer ( Site 1261)
Trujillo, La Libertad, 13009
Study Coordinator, 948319999
United Kingdom6 sites, 6 recruiting
- Recruiting
Addenbrooke's Hospital ( Site 1605)
Cambridge, Cambridgeshire, CB2 2QQ
Study Coordinator, 01223216083
- Recruiting
The Beatson West of Scotland Cancer Centre ( Site 1603)
Glasgow, Glasgow City, G12 0YN
Study Coordinator, +441413017000
- Recruiting
Charing Cross Hospital-Oncology Research ( Site 1606)
London, Hammersmith and Fulham, W6 8RF
Study Coordinator, 0208 331 10277
- Recruiting
University College London Hospital ( Site 1612)
London, London, City of, NW1 2PG
Study Coordinator, 0203 447 3042
- Recruiting
The Christie NHS Foundation Trust ( Site 1608)
Manchester, m20 4bx
Study Coordinator, +441614463000
- Recruiting
The Royal Cornwall Hospital ( Site 1610)
Truro, England, TR1 3LJ
Study Coordinator, 01872258345
Australia5 sites, 5 recruiting
- Recruiting
Princess Alexandra Hospital-Cancer Care Serices ( Site 0237)
Brisbane, Queensland, 4102
Study Coordinator, +6173176 9289
- Recruiting
Dubbo Hospital ( Site 0235)
Dubbo, New South Wales, 2830
Study Coordinator, 0268096200
- Recruiting
Macquarie University-MQ Health Clinical Trials Unit ( Site 0234)
Macquarie University, New South Wales, 2109
Study Coordinator, 0298122979
- Recruiting
Peter MacCallum Cancer Centre-Parkville Cancer Clinical Trials Unit (PCCTU) ( Site 0230)
Melbourne, Victoria, 3000
Study Coordinator, 03 8559 5000
- Recruiting
Westmead Hospital ( Site 0232)
Westmead, New South Wales, 2145
Study Coordinator, +61288905555
Malaysia5 sites, 4 recruiting
- Recruiting
Hospital Sultan Ismail ( Site 1081)
Johor Bahru, Johor, 81100
Study Coordinator, +6073565155
- Recruiting
Hospital Kuala Lumpur-Radiotherapy and Oncology ( Site 1078)
Kuala Lumpur, 50586
Study Coordinator, +60326155810
- Recruiting
Sarawak General Hospital-Radiotherapy Unit ( Site 1076)
Kuching, Sarawak, 93586
Study Coordinator, +6082276820
- Completed
University Malaya Medical Centre ( Site 1077)
Lembah Pantai, Kuala Lumpur, 59100
- Recruiting
National Cancer Institute ( Site 1079)
Putrajaya, Putrajaya, 62250
Study Coordinator, +60388925418
Taiwan5 sites, 5 recruiting
- Recruiting
China Medical University Hospital-Department of Urology ( Site 1503)
Taichung, 40447
Study Coordinator, +886-4-2205-2121
- Recruiting
National Cheng Kung University Hospital-Urology ( Site 1502)
Tainan, 704
Study Coordinator, +886-6-2353535
- Recruiting
National Taiwan University Hospital-Urology ( Site 1506)
Taipei, 10002
Study Coordinator, +886-2-2312-3456
- Recruiting
Taipei Veterans General Hospital ( Site 1505)
Taipei, 112
Study Coordinator, +886-2-28712121
- Recruiting
Chang Gung Medical Foundation-Linkou Branch-Medical Oncology ( Site 1504)
Taoyuan, 333
Study Coordinator, +886-3-3281200
Czechia4 sites, 3 recruiting
- Recruiting
Masarykuv onkologicky ustav-Klinika komplexni onkologicke pece ( Site 0553)
Brno, Brno-mesto, 656 53
Study Coordinator, +420 543 136 216
- Recruiting
Fakultni nemocnice Olomouc-Onkologicka klinika ( Site 0555)
Olomouc, Olomouc Region, 779 00
Study Coordinator, +420 588 444 699
- Recruiting
Fakultni nemocnice Ostrava-Klinika onkologicka ( Site 0554)
Ostrava, Moravian-Silesian Region, 708 52
Study Coordinator, +420597372264
- Active, not recruiting
Fakultní nemocnice Motol a Homolka ( Site 0551)
Prague, 150 06
Hungary4 sites, 4 recruiting
- Recruiting
Országos Onkológiai Intézet-Urogenitális Tumorok és Klinikai Farmakológiai Osztály ( Site 0756)
Budapest, Pest County, 1122
Study Coordinator, +36122486001171
- Recruiting
Debreceni Egyetem Klinikai Kozpont-Onkológiai Klinika ( Site 0758)
Debrecen, 4032
Study Coordinator, +3652411717
- Recruiting
Bacs-Kiskun Varmegyei Oktatokorhaz-Onkoradiologiai Kozpont ( Site 0752)
Kecskemét, Bács-Kiskun county, 6000
Study Coordinator, +3676516719
- Recruiting
Nograd Varmegyei Szent Lazar Korhaz-Onkologia es Sugarterapias Osztaly ( Site 0761)
Salgótarján, Nógrád megye, 3100
Study Coordinator, +3632522000
South Korea4 sites, 4 recruiting
- Recruiting
Seoul National University Hospital-Oncology ( Site 1401)
Seoul, 03080
Study Coordinator, +82220721672
- Recruiting
Severance Hospital, Yonsei University Health System-Medical oncology ( Site 1404)
Seoul, 03722
Study Coordinator, +82222288138
- Recruiting
Samsung Medical Center ( Site 1405)
Seoul, 06351
Study Coordinator, +82234101767
- Recruiting
Asan Medical Center-Oncology ( Site 1402)
Songpagu, Seoul, 05505
Study Coordinator, +82230106095
Thailand4 sites, 4 recruiting
- Recruiting
Chulalongkorn University ( Site 1530)
Bangkok, Bangkok, 10330
Study Coordinator, +6622564533
- Recruiting
Faculty of Medicine Siriraj Hospital ( Site 1531)
Bangkoknoi, Bangkok, 10700
Study Coordinator, +6624194489
- Recruiting
Songklanagarind hospital ( Site 1527)
Hat Yai, Changwat Songkhla, 90110
Study Coordinator, +6674451469
- Recruiting
Faculty of Medicine - Khon Kaen University ( Site 1526)
Muang, Changwat Khon Kaen, 40002
Study Coordinator, +66 43 366568-9
Austria3 sites, 3 recruiting
- Recruiting
Medizinische Universität Graz-Innere Medizin Klin. Abt. Onkologie ( Site 0280)
Graz, Styria, 8036
Study Coordinator, +4331638581307
- Recruiting
Ordensklinikum Linz GmbH Elisabethinen-Urologie ( Site 0276)
Linz, Upper Austria, 4020
Study Coordinator, +4373276774724
- Recruiting
Klinikum Wels-Grieskirchen GmbH ( Site 0279)
Wels, Upper Austria, 4600
Study Coordinator, +4372424152328
Denmark3 sites, 2 recruiting
- Recruiting
Rigshospitalet ( Site 0576)
Copenhagen, Capital Region, 2100
Study Coordinator, +45 35453545
- Active, not recruiting
Odense Universitetshospital-Department of oncology ( Site 0579)
Odense, Region Syddanmark, 5000
- Recruiting
Vejle Sygehus ( Site 0578)
Vejle, Region Syddanmark, 7100
Study Coordinator, +45 79405000
Finland3 sites, 2 recruiting
- Active, not recruiting
Kuopion Yliopistollinen Sairaala ( Site 0603)
Kuopio, Northern Savonia, 70200
- Recruiting
Tampereen yliopistollinen sairaala ( Site 0604)
Tampere, Pirkanmaa, 33520
Study Coordinator, 358331166811
- Recruiting
Turku University Hospital-Department of Oncology ( Site 0601)
Turku, Southwest Finland, 20520
Study Coordinator, 35823130729
Italy3 sites, 3 recruiting
- Recruiting
IRCCS - Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori"-Oncologia Medica ( Site 0879)
Meldola, Emilia-Romagna, 47014
Study Coordinator, +390543739100
- Recruiting
Fondazione IRCCS Istituto Nazionale dei Tumori-Struttura Complessa Oncologia Medica 1 ( Site 0877)
Milan, Lombardy, 20133
Study Coordinator, 00390223903033
- Recruiting
Ospedale San Raffaele-Oncologia Medica ( Site 0876)
Milan, 20132
Study Coordinator, +390226435668
Norway3 sites, 1 recruiting
- Recruiting
Akershus Universitetssykehus-Onkologisk avdeling ( Site 1227)
Lørenskog, Akershus, 1474
Study Coordinator, +4767963800
- Completed
Sykehuset Østfold Kalnes ( Site 1228)
Sarpsborg, Østfold fylke, 1714
- Active, not recruiting
St. Olavs Hospital-Kreftklinikken ( Site 1231)
Trondheim, Sor-Trondelag, 7030
Puerto Rico3 sites
- Completed
Puerto Rico Medical Research Center LLC ( Site 1354)
Hato Rey, 00917
- Active, not recruiting
Ad-Vance Medical Research-Research ( Site 1353)
Ponce, 00717
- Completed
Pan American Center for Oncology Trials - Ciudadela ( Site 1351)
San Juan, 00909
Singapore3 sites, 3 recruiting
- Recruiting
National University Hospital ( Site 1376)
Singapore, Central Singapore, 119074
Study Coordinator, 6569082222
- Recruiting
National Cancer Centre Singapore ( Site 1377)
Singapore, Central Singapore, 168583
Study Coordinator, +65-64368000
- Recruiting
Tan Tock Seng Hospital-Medical Oncology ( Site 1378)
Singapore, Central Singapore, 308433
Study Coordinator, +65-62566011
Sweden3 sites, 2 recruiting
- Recruiting
Sahlgrenska Universitetssjukhuset ( Site 1479)
Gothenburg, Västra Götaland County, 413 45
Study Coordinator, 0046313421000
- Active, not recruiting
Karolinska Universitetssjukhuset Solna ( Site 1478)
Stockholm, Stockholm County, 171 64
- Recruiting
Akademiska sjukhuset-Blod- och tumörsjukdomar ( Site 1477)
Uppsala, Uppsala County, 751 85
Study Coordinator, 0046186110000
Hong Kong2 sites
- Active, not recruiting
Queen Mary Hospital ( Site 0727)
Hong Kong
- Active, not recruiting
Prince of Wales Hospital ( Site 0730)
Shatin
Ireland2 sites, 2 recruiting
- Recruiting
St. Vincent's University Hospital ( Site 0802)
Dublin, Dublin, D04 T6F4
Study Coordinator, +35312214000
- Recruiting
Tallaght University Hospital ( Site 0801)
Dublin, D24 NR0A
Study Coordinator, +35314144299
New Zealand2 sites, 2 recruiting
- Recruiting
Dunedin Hospital-Southern Blood and Cancers Service ( Site 1203)
Dunedin, Otago, 9016
Study Coordinator, +64 3 470 9692
- Recruiting
Tauranga Hospital-Bay of Plenty Clinical Trials Unit ( Site 1201)
Tauranga, Bay of Plenty, 3112
Study Coordinator, +64277033845
About this study
Official title: A Phase 3 Randomized, Open-label Study of MK-5684 Versus Alternative Abiraterone Acetate or Enzalutamide in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) Previously Treated With Next-generation Hormonal Agent (NHA) and Taxane-based Chemotherapy (OMAHA-003)
This is a phase 3, randomized, open-label study of opevesostat compared to alternative abiraterone acetate or enzalutamide in participants with metastatic castration-resistant prostate cancer (mCRPC) with respect to overall survival (OS) in participants with mCRPC previously treated with next-generation hormonal agent (NHA) and taxane-based chemotherapy. It is hypothesized that opevesostat is superior with respect to OS in androgen receptor ligand binding domain (AR LBD) mutation-negative and -positive participants.
- Conditions
- Prostate Cancer Metastatic
- Being tested
- Opevesostat, Abiraterone acetate, Enzalutamide, Hydrocortisone, Fludrocortisone acetate
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
OpevesostatDrug
Also called MK-5684
Administered orally
Abiraterone acetateDrug
Also called ZYTIGA, YONSA
Administered orally
EnzalutamideDrug
Also called XTANDI
Administered orally
HydrocortisoneDrug
Administered orally or IM as a rescue medication
Fludrocortisone acetateDrug
Administered orally
PrednisoneDrug
Administered orally as a rescue medication
DexamethasoneDrug
Administered orally as rescue medication
| Study group | Role | What they receive |
|---|---|---|
| Opevesostat | Experimental | Participants receive opevesostat 5 mg by oral tablets twice daily (bid) plus dexamethasone 1.5 mg by oral tablets once daily (qd) and 0.1 mg fludrocortisone acetate by oral tablet qd until progression. Hydrocortisone 100 mg (oral or intramuscular [IM]) dose will also be provided to participants for use as rescue medication. Prior to study protocol amendment 9, prednisone was provided as a rescue medication during adrenal recovery, titrated at 5mg daily maintenance dose and then titrated to discontinuation. Receives: Drug: Opevesostat; Drug: Hydrocortisone; Drug: Fludrocortisone acetate; Drug: Prednisone; Drug: Dexamethasone |
| Abiraterone Acetate or Enzalutamide | Active comparator | Participants receive abiraterone 1000 mg qd by oral tablets plus prednisone 5 mg bid by oral tablets or enzalutamide 160 mg qd by oral tablets. Receives: Drug: Abiraterone acetate; Drug: Enzalutamide; Drug: Prednisone |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall Survival (OS) in Androgen Receptor Ligand Binding Domain (AR LBD) Mutation-Positive Participants
OS is defined as time from randomization to death due to any cause. OS in AR LBD mutation-positive participants will be reported for each study arm.
Measured: Up to ~54 months
OS in AR LBD Mutation-Negative Participants
OS is defined as time from randomization to death due to any cause. OS in AR LBD mutation-negative participants will be reported for each study arm.
Measured: Up to ~54 months
Secondary outcomes (10)
Radiographic Progression-free Survival (rPFS) Per Prostate Cancer Working Group-modified Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review in AR LBD Mutation-Positive Participants
rPFS is defined as the time from randomization to the first documented disease progression per Prostate Cancer Working Group (PCWG)-modified Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as assessed by Blinded Independent Central Review (BICR) or death due to any cause, whichever occurs first. rPFS in AR LBD mutation-positive participants will be reported for each study arm.
Measured: Up to ~36 months
rPFS Per Prostate Cancer Working Group-modifiedRECIST 1.1 as Assessed by Blinded Independent Central Review in AR LBD Mutation-Negative Participants
rPFS is defined as the time from randomization to the first documented disease progression per Prostate Cancer Working Group (PCWG)-modified Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as assessed by Blinded Independent Central Review (BICR) or death due to any cause, whichever occurs first. rPFS in AR LBD mutation-positive participants will be reported for each study arm.
Measured: Up to ~36 months
Time to Initiation of the First Subsequent Anti-Cancer Therapy or Death (TFST)
TFST is defined as the time from randomization to initiation of the first subsequent anticancer therapy or death, whichever occurs first.
Measured: Up to ~54 months
Objective Response (OR)
OR is determined by PCWG-modified RECIST 1.1 as assessed by BICR.
Measured: Up to ~54 months
Duration of Response (DOR)
DOR is determined by PCWG-modified RECIST 1.1 as assessed by BICR.
Measured: Up to ~54 months
Time to Pain Progression (TTPP)
TTPP is assessed by Brief Pain Inventory-Short Form (BPI-SF) Item 3 ("Worst Pain in 24 Hours") and opiate analgesic use (Analgesic Quantification Algorithm [AQA] Score).
Measured: Up to ~54 months
Time to Prostate-specific Antigen (PSA) Progression
The time from randomization to PSA progression. The PSA progression date is defined as the date of either: 1) ≥25% increase and ≥2 ng/mL above the nadir, confirmed by a second value ≥3 weeks later if there is PSA decline from baseline 2) ≥25% increase and ≥2 ng/mL increase from baseline beyond 12 weeks if there is no PSA decline from baseline.
Measured: Up to ~54 months
Time to First Symptomatic Skeletal-related Event (SSRE)
The time from randomization to the first occurrence of any of the following symptomatic skeletal-related events: 1) Use of EBRT to prevent or relieve skeletal symptoms; 2) new symptomatic pathologic bone fracture (vertebral or non-vertebral); 3) spinal cord compression; or 4) tumor-related orthopedic surgical intervention.
Measured: Up to ~54 months
Number of Participants Who Experience an Adverse Event
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.
Measured: Up to ~54 months
Number of Participants Who Discontinue Study Treatment Due to an Adverse Event
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.
Measured: Up to ~54 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Nov 2023
- Study start31 Dec 2023
- Primary completion30 Nov 2028 (estimated)
- Study completion29 Mar 2030 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Prostate Cancer MetastaticStudies of the same condition, open and under way.
- More trials run by Merck Sharp & Dohme LLCThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 1,310 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Merck Sharp & Dohme LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director, Study director, Merck Sharp & Dohme LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06136624
- Sponsor's protocol ID
- 5684-003
- Other IDs
- 2023-504899-25-00, MK-5684-003, jRCT2031240029, U1111-1287-5304, 2023
- Acronym
- OMAHA-003
- Status last verified
- Nov 2026
- First submitted
- 13 Nov 2023
- Last updated
- 5 Nov 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf
Publications
Yu EY, Gratzke C, Burotto M, Zhang AY, Levesque E, Ortega F, Peer A, Vile D, Chen ZH, Song Y, Schloss C, Todoric J, Garratt C, Poehlein C, Antonarakis ES, Fizazi K. Steroidogenesis inhibitor opevesostat (MK-5684) for metastatic castration-resistant prostate cancer: OMAHA-003 and OMAHA-004 trial designs. Future Oncol. 2026 Mar;22(7):765-772. doi: 10.1080/14796694.2025.2595914. Epub 2026 Feb 23.
PubMed 41732008
Study at a glance
From the registry record, last updated by the sponsor on 5 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 3 Randomized, Open-label Study of MK-5684 Versus Alternative Abiraterone Acetate or Enzalutamide in Participants With Metastatic Castration-resistant Prostate Cancer (mCRPC) Previously Treated With Next-generation Hormonal Agent (NHA) and Taxane-based Chemotherapy (OMAHA-003)
- ClinicalTrials.gov ID
- NCT06136624
- Acronym / sponsor ID
- OMAHA-003 / 5684-003
- Conditions
- Prostate Cancer Metastatic
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 1,310 participants (estimated)
- Lead sponsor
- Merck Sharp & Dohme LLCIndustry (pharma, biotech, devices)
- Study start
- 31 Dec 2023 (actual)
- Primary completion
- 30 Nov 2028 (estimated)
- Study completion
- 29 Mar 2030 (estimated)
- First posted
- 18 Nov 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a phase 3, randomized, open-label study of opevesostat compared to alternative abiraterone acetate or enzalutamide in participants with metastatic castration-resistant prostate cancer (mCRPC) with respect to overall survival (OS) in participants with mCRPC previously treated with next-generation hormonal agent (NHA) and taxane-based chemotherapy. It is hypothesized that opevesostat is superior with respect to OS in androgen receptor ligand binding domain (AR LBD) mutation-negative and -positive participants.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Opevesostat | Experimental | Drug: Opevesostat, Drug: Hydrocortisone, Drug: Fludrocortisone acetate, Drug: Prednisone, Drug: DexamethasoneParticipants receive opevesostat 5 mg by oral tablets twice daily (bid) plus dexamethasone 1.5 mg by oral tablets once daily (qd) and 0.1 mg fludrocortisone acetate by oral tablet qd until progression. Hydrocortisone 100 mg (oral or intramuscular [IM]) dose will also be provided to participants for use as rescue medication. Prior to study protocol amendment 9, prednisone was provided as a rescue medication during adrenal recovery, titrated at 5mg daily maintenance dose and then titrated to discontinuation. |
| Abiraterone Acetate or Enzalutamide | Active comparator | Drug: Abiraterone acetate, Drug: Enzalutamide, Drug: PrednisoneParticipants receive abiraterone 1000 mg qd by oral tablets plus prednisone 5 mg bid by oral tablets or enzalutamide 160 mg qd by oral tablets. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (17 listed)
- Has histologically- or cytologically-confirmed adenocarcinoma of the prostate without small cell histology.
- Has prostate cancer progression while on androgen deprivation therapy (or post bilateral orchiectomy) within 6 months before Screening
- Has current evidence of distant metastatic disease (M1 disease) documented by either bone lesions on bone scan and/or soft tissue disease by computed tomography/magnetic resonance imaging (CT/MRI).
- Has disease that progressed during or after treatment with 1 novel hormonal agent (NHA)
- Has received 1 but no more than 2 taxane-based chemotherapy regimens for metastatic castration-resistant prostate cancer (mCRPC) and has had progressive disease (PD) during or after treatment
Key exclusion criteria (33 listed)
- Has a gastrointestinal disorder that might affect absorption
- Has a history of pituitary dysfunction
- Has poorly controlled diabetes mellitus
- Has clinically significant abnormal serum potassium or sodium level
- Has a history of active or unstable cardio/cerebro-vascular disease, including thromboembolic events
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| OpevesostatAlso: MK-5684Administered orally | Drug | Opevesostat |
| Abiraterone acetateAlso: ZYTIGA, YONSAAdministered orally | Drug | Abiraterone Acetate or Enzalutamide |
| EnzalutamideAlso: XTANDIAdministered orally | Drug | Abiraterone Acetate or Enzalutamide |
| HydrocortisoneAdministered orally or IM as a rescue medication | Drug | Opevesostat |
| Fludrocortisone acetateAdministered orally | Drug | Opevesostat |
| PrednisoneAdministered orally as a rescue medication | Drug | Abiraterone Acetate or Enzalutamide, Opevesostat |
| DexamethasoneAdministered orally as rescue medication | Drug | Opevesostat |
Primary outcome
Overall Survival (OS) in Androgen Receptor Ligand Binding Domain (AR LBD) Mutation-Positive Participants
Time frame: Up to ~54 months
OS is defined as time from randomization to death due to any cause. OS in AR LBD mutation-positive participants will be reported for each study arm.
OS in AR LBD Mutation-Negative Participants
Time frame: Up to ~54 months
OS is defined as time from randomization to death due to any cause. OS in AR LBD mutation-negative participants will be reported for each study arm.
10 secondary outcomes
Radiographic Progression-free Survival (rPFS) Per Prostate Cancer Working Group-modified Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review in AR LBD Mutation-Positive Participants
Time frame: Up to ~36 months
rPFS Per Prostate Cancer Working Group-modifiedRECIST 1.1 as Assessed by Blinded Independent Central Review in AR LBD Mutation-Negative Participants
Time frame: Up to ~36 months
Time to Initiation of the First Subsequent Anti-Cancer Therapy or Death (TFST)
Time frame: Up to ~54 months
Objective Response (OR)
Time frame: Up to ~54 months
Duration of Response (DOR)
Time frame: Up to ~54 months
Time to Pain Progression (TTPP)
Time frame: Up to ~54 months
Time to Prostate-specific Antigen (PSA) Progression
Time frame: Up to ~54 months
Time to First Symptomatic Skeletal-related Event (SSRE)
Time frame: Up to ~54 months
Number of Participants Who Experience an Adverse Event
Time frame: Up to ~54 months
Number of Participants Who Discontinue Study Treatment Due to an Adverse Event
Time frame: Up to ~54 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Nov 2026.
- Derived from this study: PubMed 41732008Yu EY, Gratzke C, Burotto M, Zhang AY, Levesque E, Ortega F, Peer A, Vile D, Chen ZH, Song Y, Schloss C, Todoric J, Garratt C, Poehlein C, Antonarakis ES, Fizazi K. Steroidogenesis inhibitor opevesostat (MK-5684) for metastatic castration-resistant prostate cancer: OMAHA-003 and OMAHA-004 trial designs. Future Oncol. 2026 Mar;22(7):765-772. doi: 10.1080/14796694.2025.2595914. Epub 2026 Feb 23.
- Merck Clinical Trials InformationLink provided by the sponsor.
- Plain Language SummaryLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Medical Director study director
Merck Sharp & Dohme LLC
288 sites in 36 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Opevesostat, Abiraterone acetate and Enzalutamide in people with Prostate Cancer Metastatic, run by Merck Sharp & Dohme LLC at 288 sites in 36 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 17 inclusion and 33 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 5 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 288 sites in United States, China, Japan, Netherlands, Turkey (Türkiye) and 31 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Toll Free Number (1-888-577-8839, Trialsites@msd.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Overall Survival (OS) in Androgen Receptor Ligand Binding Domain (AR LBD) Mutation-Positive Participants (time frame: Up to ~54 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06136624, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2026.