Prostate CancerPhase 2NCT02960022
A Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study
A Phase 2 study testing enzalutamide, abiraterone acetate and prednisone in people with Prostate Cancer, run by Astellas Pharma Global Development, Inc. at 233 sites in 38 countries.
Trial summary
The purpose of this study is to collect long term safety data in subjects who are continuing to derive clinical benefit from treatment with Enzalutamide from the subjects participation in an enzalutamide clinical study sponsored by Astellas or Medivation (i.e., parent study) which has completed, at a minimum, the… Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Prostate Cancer
- What is being tested?
- enzalutamide, abiraterone acetate and prednisone
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 900 participants
- Where
- 233 sitesin 38 countries
- Study dates
- 22 Dec 2016to 31 Jul 2029
- Phase
- Phase 2
- 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
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subject must currently be receiving enzalutamide or assigned to receive enzalutamide (if on treatment suspension) for prostate cancer in a study sponsored by Astellas or Medivation and, based on the investigator's assessment, benefit from continued treatment. Subjects participating in investigator-initiated trials are not eligible.
- Subject is able to continue on the treatment regimen that they were receiving or were assigned to receive in the prior study. If in the investigator's assessment, a change is needed to the subject's regimen (e.g., dose change in Androgen deprivation therapy (ADT) or dropping of a combination therapy) approval from a medical monitor is required prior to enrollment.
- Subject is able to swallow enzalutamide capsules and comply with study requirements.
- Subject and female partner who is of childbearing potential must continue to use 2 forms of birth control, of which 1 must be highly effective and 1 must be a barrier method throughout the study and for 3 months after final enzalutamide administration.
- Subject agrees to avoid sperm donation during the study and for at least 3 months after final enzalutamide administration.
- Subject agrees not to participate in another interventional study while on treatment.
Show all 27Show fewer
- Canada Specific:
- Institutional Review Board (IRB)/Independent Ethics Committee (IEC) approved written Informed Consent and privacy language as per national regulations (e.g., Health Insurance Portability and Accountability Act authorization for the United States sites) must be obtained from the subject prior to any study-related procedures.
- Subject must currently be receiving enzalutamide for breast cancer in a study sponsored by Astellas or Medivation/Pfizer and based on the investigator's assessment, benefit from continued treatment. Subjects participating in investigator-initiated trials are not eligible.
- Subject is able to continue on the treatment regimen that they were receiving in the prior study. If in the investigator's assessment, a change is needed to the subject's regimen (e.g., dropping of a combination therapy) approval from a medical monitor is required prior to enrollment.
- Subject is able to swallow enzalutamide capsules and comply with study requirements.
- Subject is either:
- Of nonchildbearing potential:
- postmenopausal (defined as no spontaneous menses for at least 12 months prior to Day 1 with follicle stimulating hormone (FSH) > 40 IU/L at Day 1 for women < 55 years of age),
- documented surgically sterile or status post hysterectomy (at least 1 month prior to Day 1),
- Or, if of childbearing potential,
- must have a negative urine pregnancy test at Day 1 before the first dose of study drug is administered,
- must use 2 acceptable methods of birth control starting at Day 1 and through 6 months after the final study drug administration,
- must not donate ova starting at first administration of study intervention and throughout 6 months after final study intervention administration.
- The 2 acceptable methods of birth control are as follows or per local guidelines where these require additional description of contraceptive methods:
- A barrier method (e.g., condom by a male partner) is required; AND
- One of the following is required:
- Placement of an intrauterine device (IUD) or intrauterine system (IUS);
- Additional barrier method including occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository;
- Vasectomy or other surgical castration at least 6 months before Day 1.
- The subject must not be breastfeeding at Day 1 or during the study period, and for 6 months after the final study drug administration.
- Subject agrees not to participate in another interventional study while on treatment.
Who cannot join
- Subject met any of the discontinuation criteria or whose cancer progressed on the current enzalutamide clinical study in which subject is enrolling from.
- Subject requires treatment with or plans to use either of the following:
- New systemic therapy for subjects cancer (palliative radiation therapy is allowed). The treatment with agents administered during previous studies which was stopped and then restarted during this study does not represent new treatment.
- Investigational therapy other than enzalutamide.
- Subject is currently participating in an investigator-initiated interventional trial and receiving enzalutamide.
- Subject has any concurrent disease, infection, or comorbid condition that interferes with the ability of the subject to participate in the study, which places the subject at undue risk or complicates the interpretation of data.
Show all 14Show fewer
- Canada Specific:
- Subject will be excluded from participation if any of the following apply:
- Subject met any of the discontinuation criteria or whose cancer progressed on the current enzalutamide clinical study in which they are enrolling from.
- Subject requires treatment with or plans to use any of the following:
- New systemic therapy for their cancer (palliative radiation therapy is allowed). The treatment with agents administered during previous studies which was stopped and then restarted during this study does not represent new treatment.
- Investigational therapy other than enzalutamide.
- Subject is currently participating in an investigator-initiated interventional trial and receiving enzalutamide.
- Subject has any concurrent disease, infection, or comorbid condition that interferes with the ability of the subject to participate in the study, which places the subject at undue risk or complicates the interpretation of data in the opinion of the investigator.
Trial locations and contacts
233 sites in 38 countries.
233 sites in 38 countries
United States46 sites
Site US10052
Anchorage, Alaska, 99503
Site US10001
Aurora, Colorado, 80045
Site US10030
Chapel Hill, North Carolina, 27599
Site US10018
Charleston, South Carolina, 29414
Site US10062
Charlotte, North Carolina, 28207
Site US10002
Chicago, Illinois, 60637
Site US10035
Cincinnati, Ohio, 45212
Site US10010
Dallas, Texas, 75231
Site US10049
Daytona Beach, Florida, 32114
Site US10017
Denver, Colorado, 80211
Site US10024
Garden City, New York, 11530
Site US10031
Greensboro, North Carolina, 27403
Eastern Urological Associates
Greenville, North Carolina, 27834
Site US10004
Hackensack, New Jersey, 07601
Site US10034
Houston, Texas, 77024
Site US10043
Houston, Texas, 77030
Site US10007
Jeffersonville, Indiana, 47130
University of Kansas Medical Center
Kansas City, Kansas, 66160
Site US10027
Lancaster, Pennsylvania, 17604
Site US10066
Lenexa, Kansas, 66214-1656
Site US10040
Los Angeles, California, 90024
Site US10009
Los Angeles, California, 90048
Site US10021
Madison, Wisconsin, 53792
Carolina Urologic Research Center
Myrtle Beach, South Carolina, 29572
Site US10041
Nashville, Tennessee, 37232-2765
Site US10055
New York, New York, 10065
Site US10059
New York, New York, 10065
Site US10014
Norfolk, Virginia, 23502
Nebraska Medical Hospital
Omaha, Nebraska, 68114
Site US10023
Omaha, Nebraska, 68130
Site US10005
Pittsburgh, Pennsylvania, 15232
Hudson Valley Urology, PC
Poughkeepsie, New York, 12601
Site US10008
San Bernardino, California, 92404
Site US10042
San Diego, California, 92108
Virginia Mason Medical Center
Seattle, Washington, 98101
Site US10038
Seattle, Washington, 98109
Springfield Clinic, LLP
Springfield, Illinois, 62701
Site US10022
Springfield, Oregon, 97477
Site US10032
St Louis, Missouri, 63110
Site US10028
Stanford, California, 94305
Site US10053
Syracuse, New York, 13210
Site US10029
Towson, Maryland, 21204
Site US10011
Tucson, Arizona, 85741
Site US10015
Virginia Beach, Virginia, 23462
Site US10050
Washington D.C., District of Columbia, 20037
Site US10046
Winston-Salem, North Carolina, 27157
Japan14 sites
Nippon Medical School Hospital
Bunkyo-ku, Tokyo
Chiba cancer center
Chiba, 260-8717
Harasanshin hospital
Fukuoka, 812-0033
Kyushu University Hospital
Higashiku, Fukuoka
Kagawa University Hospital
Kida-gun, Kagawa-ken
The Cancer Institute Hospital of Japanese Foundation for Cancer Research
Koutou-ku, Tokyo
Kyoto University hospital
Kyoto, 606-8507
Gunma University Hospital
Maebashi, Gunma
Niigata University Medical and Dental Hospital
Niigata, 951-8520
Osaka Metropolitan University Hospital
Osaka
Toho University Sakura Medical Center
Sakura-shi, Chiba
Kindai University Hospital
Sayama, Osaka, 589-8511
Yamaguchi University Hospital
Ube, Yamaguchi
Yokohama City University Medical Center
Yokohama, Kanagawa, 232-0024
Australia12 sites
Site AU61014
Albury, New South Wales, 2640
Site AU61006
Ashford
Site AU61019
Ballarat, 3350
Site AU61007
East Bentleigh, 3165
Site AU61009
Malvern
Site AU61021
Parkville
Site AU61008
South Brisbane
Site AU61016
St Albans, 3021
Site AU61001
Tweed Heads, New South Wales, 2485
Site AU61012
Wahroonga, New South Wales, 2076
Site AU61017
Wahroonga, New South Wales, 2076
Site AU61004
Westmead, 2145
France12 sites
Site FR33021
Bordeaux, 33076
Site FR33008
La Roche-sur-Yon, 85925
Site FR33010
Lille, 59037
Site FR33002
Lyon, 69003
Site FR33020
Montpellier, 34298
Site FR33006
Nîmes, 30029
Site FR33003
Paris
Site FR33017
Paris
Site FR33001
Saint-Herblain
Site FR33019
Strasbourg, 67000
Site FR33022
Strasbourg, 67098
Site FR33004
Villejuif
United Kingdom11 sites
Site GB44009
Bebington
Site GB44003
Belfast
Site GB44004
Bristol, BS28HW
Site GB44014
Cambridge
Site GB44005
Cardiff, CF4 4XN
Site GB44002
Glasgow
Site GB44006
London
Site GB44007
Manchester, M20 4BX
Site GB44008
Northwood
Site GB44016
Nottingham, NG5 1PB
Site GB44001
Sutton
South Korea10 sites
Site KR82008
Busan, 49241
Site KR82012
Seongnam-si, 013620
Site KR82005
Seongnam-si
Site KR82009
Seoul, 03080
Site KR82007
Seoul, 06351
Site KR82011
Seoul, 138-736
Site KR82001
Seoul
Site KR82002
Seoul
Site KR82003
Seoul
Site KR82004
Seoul
Spain9 sites
Site ES34007
Barcelona, 08036
Site ES34003
Barcelona
Site ES34011
Girona, 17007
Site ES34012
Madrid, 28006
Site ES34001
Madrid, 28034
Site ES34008
Madrid
Site ES34005
Pamplona
Site ES34014
Salamanca
Site ES34010
Santiago de Compostela, 15706
Belgium8 sites
Site BE32009
Anderlecht, 1070
Site BE32004
Brussels, B-1090
Site BE32011
Ghent, 9000
Site BE32007
Hasselt
Site BE32002
Kortrijk, West-Vlaanderen, 8500
Site BE32008
Leuven, 3000
Site BE32001
Liège, 4000
Site BE32003
Turnhout, 2300
Canada8 sites
Site CA15019
Abbotsford British Columbia, V2S 3N5
Site CA15001
Granby, Quebec, J2G 8Z9
Site CA15020
Greenville, L6R 3J7 27834
Site CA15003
Kingston, Ontario, K7L 3J7
Site CA15011
Montreal
Site CA15017
Oakville, L6H 3P1
Site CA15022
Québec, QC / G1S 4L8
Site CA15021
Toronto, Ontario, M4N 3M5
Italy8 sites
Site IT39001
Arezzo
Site IT39011
Candiolo
Site IT39004
Cremona
Site IT39008
Faenza (RA), Emilia-Romagna, 48018
Site IT39002
Forlì
Site IT39005
Roma
Site IT39009
Toscana
Site IT39006
Trento, 38122
Germany7 sites
Site DE49010
Bonn, 53111
Site DE49001
Duisburg, North Rhine-Westphalia, 47179
Site DE49003
Hamburg, 22081
Site DE49013
Hamburg
Site DE49006
Mannheim, DE, 68167
Site DE49004
Nürtingen, Baden-Wurttemberg, 72622
Site DE49007
Waldshut-Tiengen, Baden-Wurttemberg, 79761
Slovakia7 sites
Site SK10223
Bratislava
Site SK42109
Košice, 04001
Site SK42106
Košice, 04191
Site SK42105
Nitra, 949 01
Site SK42103
Prešov, 080 01
Site SK42108
Trenčín, 91101
Site SK42107
Žilina
Argentina6 sites
Site AR54005
Buenos Aires, Buenos Aires F.D., C1120AAT
Site AR54008
Buenos Aires
Site AR54003
Cordorba
Site AR54007
Rosario, Santa Fe Province, S2000DSV
Site AR54006
San Miguel de Tucumán, T4000IAK
Site AR54002
San Miguel de Tucumán
Brazil6 sites
Site BR55009
Bahia, 41253-190
Site BR55008
Campinas
Site BR55011
Jaú
Site BR55007
Porto Alegre, Rio Grande do Sul, 90430-090
Site BR55002
Rio Grande, 90610-000
Site BR55010
Santo André, 09060-650
Chile6 sites
Site CL56004
IX Region
Site CL56007
Santiago, RM, 7500787
Site CL56005
Santiago, RM, 75009
Site CL56002
Santiago
Site CL56006
Viña del Mar, Valparaiso, 2520598
Site CL56001
Viña del Mar
Poland6 sites
Site PL48002
Gdansk
Site PL48001
Mysłowice
Site PL48004
Pozman
Site PL48005
Słupsk, 76-200
Site PL48011
Warsaw, 04-073
Site PL48003
Wroclaw, 54-144
Russia6 sites
Site RU70008
Ivanovo, 153040
Site RU70001
Moscow, 125284
Site RU70005
Omsk
Site RU70009
Saint Petersburg, 191104
Site RU70003
Saint Petersburg
Site RU70006
Saint Petersburg
Denmark5 sites
Site DK45002
Aalborg, North Denmark, 9000
Site DK45003
Aarhus, 8200
Site DK45001
Copenhagen, 2100
Site DK45004
Herlev, 2730
Site DK45006
Vejle, 7100
Taiwan5 sites
Site TW88607
Guishan, 33305
Site TW88603
Kaohsiung City, 81362
Site TW88601
Kaohsiung City
Site TW88602
Taichung, 40447
Site TW88606
Taipei, 10002
Czechia4 sites
Site CZ42004
Olomouc, 775 20
Site CZ42002
Olomouc, 779 00
Site CZ42001
Prague, 16000
Site CZ42003
Prague
Israel4 sites
Site IL97205
Jerusalem
Site IL97202
Peth Tikva
Site IL97204
Ramat Gan
Site IL97203
Tzrifin Beer Yakov
Netherlands4 sites
Site NL31010
Amsterdam, 1066 CX
Site NL31009
Den Helder
Site NL31004
Maastricht, 6229
Site NL31011
Rotterdam, 3045 PM
Ukraine4 sites
Site UA38004
Dnipro, 49005
Site UA38005
Kharkiv, 61037
Site UA38001
Kyiv, 02125
Site UA38003
Uzhhorod, 88000
China3 sites
Site CN86003
Hubei, 430030
Site CN86010
Hunan, 410013
Site CN86005
Nanjing
New Zealand3 sites
Site NZ64002
Auckland, V2S 3N5
Site NZ64005
Dunedin, 9016
Site NZ64001
Hamilton
Romania3 sites
Site RO40003
Bucharest, 50659
Site RO40001
Cluj-Napoca, 400015
Site RO40004
Cluj-Napoca, 400015
Thailand2 sites
Site TH66002
Bangkok, 10330
Site TH66001
Hat Yai, Changwat Songkhla, 90110
About this study
Official title: A Phase 2 Open-label Extension Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study
The purpose of this study is to collect long term safety data in subjects who are continuing to derive clinical benefit from treatment with Enzalutamide from the subjects participation in an enzalutamide clinical study sponsored by Astellas or Medivation (i.e., parent study) which has completed, at a minimum, the primary analysis or the study specified evaluation period.
Read the detailed description
Subjects must continue on the treatment regimen that the subject was receiving in the prior study. Dose changes of any of the prior therapies subjects were receiving on the previous protocol are allowed after medical monitor approval. The day 1 visit for this study should coincide with the last treatment visit for the study the subject will be enrolling from (≤ 7 days post last visit of parent study) unless the subject is on treatment suspension. The subjects will be followed according to the local institution's standard of care and will be required to return to the institution every 24 weeks (± 7 days) to review adverse events (AEs), collect concomitant medications and confirm that no discontinuation criteria are met. At each visit and at every 12 weeks (IP only visit) subjects are to return all dispensed study drug and to receive more study drug if applicable. All AEs (new and ongoing from the study the subject is enrolling from) and Serious Adverse Events (SAEs) (including death), will be collected from the time the subject signs the consent form until the end of study visit.
After the marketing approval in South Korea, this study continued as "post marketing clinical study" in South Korea. In the rest of the countries which participated in this study, this study continued as clinical study.
- Conditions
- Prostate Cancer
- Being tested
- enzalutamide, abiraterone acetate, prednisone, Leuprolide acetate
- Keywords
- prostate cancer, prednisone, MDV3100, enzalutamide, Xtandi, abiraterone acetate
- Medical subject headings
- Prostatic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
enzalutamideDrug
Also called MDV3100, Xtandi
Subjects will receive enzalutamide orally once daily at the same time each day.
abiraterone acetateDrug
Subjects enrolling from study 9785-CL-0011 or MDV3100-10 (PLATO) study may receive abiraterone acetate once daily and prednisone twice daily, in addition to enzalutamide
prednisoneDrug
Subjects enrolling from study 9785-CL-0011 or MDV3100-10 (PLATO) study may receive abiraterone acetate once daily and prednisone twice daily, in addition to enzalutamide
Leuprolide acetateDrug
Subjects enrolling from study MDV3100-13 (EMBARK) study may receive leuprolide acetate once every 12 weeks in addition to enzalutamide once daily
| Study group | Role | What they receive |
|---|---|---|
| enzalutamide | Experimental | Subjects will receive enzalutamide orally once daily at the same time each day Receives: Drug: enzalutamide |
| enzalutamide plus abiraterone acetate and prednisone | Experimental | Subjects enrolling from study 9785-CL-0011 or MDV3100-10 (PLATO) study may receive abiraterone acetate once daily and prednisone twice daily, in addition to enzalutamide once daily Receives: Drug: enzalutamide; Drug: abiraterone acetate; Drug: prednisone |
| Enzalutamide plus leuprolide acetate | Experimental | Subjects enrolling from study MDV3100-13 (EMBARK) study may receive leuprolide acetate once every 12 weeks in addition to enzalutamide once daily Receives: Drug: enzalutamide; Drug: Leuprolide acetate |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of participants with adverse events
Measured: Until End of Study (Up to 96 Months)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Nov 2016 (estimated)
- Study start22 Dec 2016
- Primary completion31 Jul 2029 (estimated)
- Study completion31 Jul 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Prostate CancerStudies of the same condition, open and under way.
- More trials run by Astellas Pharma Global Development, Inc.The 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 2
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 900 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Astellas Pharma Global Development, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Pfizer
- Responsible party
- Sponsor
- Investigators
- Associate Medical Director, Study director, Astellas Pharma Global Development, Inc.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02960022
- Sponsor's protocol ID
- 9785-CL-0123
- Other IDs
- 2016-001694-32, 2023-510298-33-00, jRCT2031220674, 2023, 2016
- Status last verified
- Oct 2026
- First submitted
- 7 Nov 2016
- Last updated
- 13 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as products terminated during development. Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.
Study at a glance
From the registry record, last updated by the sponsor on 13 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2 Open-label Extension Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study
- ClinicalTrials.gov ID
- NCT02960022
- Acronym / sponsor ID
- 9785-CL-0123
- Conditions
- Prostate Cancer
- Keywords
- prostate cancer, prednisone, MDV3100, enzalutamide, Xtandi, abiraterone acetate
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 900 participants (estimated)
- Lead sponsor
- Astellas Pharma Global Development, Inc.Industry (pharma, biotech, devices)
- Collaborators
- Pfizer
- Study start
- 22 Dec 2016 (actual)
- Primary completion
- 31 Jul 2029 (estimated)
- Study completion
- 31 Jul 2029 (estimated)
- First posted
- 9 Nov 2016 (estimated)
- 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.
The purpose of this study is to collect long term safety data in subjects who are continuing to derive clinical benefit from treatment with Enzalutamide from the subjects participation in an enzalutamide clinical study sponsored by Astellas or Medivation (i.e., parent study) which has completed, at a minimum, the primary analysis or the study specified evaluation period.
Detailed description
Subjects must continue on the treatment regimen that the subject was receiving in the prior study. Dose changes of any of the prior therapies subjects were receiving on the previous protocol are allowed after medical monitor approval. The day 1 visit for this study should coincide with the last treatment visit for the study the subject will be enrolling from (≤ 7 days post last visit of parent study) unless the subject is on treatment suspension. The subjects will be followed according to the local institution's standard of care and will be required to return to the institution every 24 weeks (± 7 days) to review adverse events (AEs), collect concomitant medications and confirm that no discontinuation criteria are met. At each visit and at every 12 weeks (IP only visit) subjects are to return all dispensed study drug and to receive more study drug if applicable. All AEs (new and ongoing from the study the subject is enrolling from) and Serious Adverse Events (SAEs) (including death), will be collected from the time the subject signs the consent form until the end of study visit.
After the marketing approval in South Korea, this study continued as "post marketing clinical study" in South Korea. In the rest of the countries which participated in this study, this study continued as clinical study.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| enzalutamide | Experimental | Drug: enzalutamideSubjects will receive enzalutamide orally once daily at the same time each day |
| enzalutamide plus abiraterone acetate and prednisone | Experimental | Drug: enzalutamide, Drug: abiraterone acetate, Drug: prednisoneSubjects enrolling from study 9785-CL-0011 or MDV3100-10 (PLATO) study may receive abiraterone acetate once daily and prednisone twice daily, in addition to enzalutamide once daily |
| Enzalutamide plus leuprolide acetate | Experimental | Drug: enzalutamide, Drug: Leuprolide acetateSubjects enrolling from study MDV3100-13 (EMBARK) study may receive leuprolide acetate once every 12 weeks in addition to enzalutamide once daily |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (27 listed)
- Subject must currently be receiving enzalutamide or assigned to receive enzalutamide (if on treatment suspension) for prostate cancer in a study sponsored by Astellas or Medivation and, based on the investigator's assessment, benefit from continued treatment. Subjects participating in investigator-initiated trials are not eligible.
- Subject is able to continue on the treatment regimen that they were receiving or were assigned to receive in the prior study. If in the investigator's assessment, a change is needed to the subject's regimen (e.g., dose change in Androgen deprivation therapy (ADT) or dropping of a combination therapy) approval from a medical monitor is required prior to enrollment.
- Subject is able to swallow enzalutamide capsules and comply with study requirements.
- Subject and female partner who is of childbearing potential must continue to use 2 forms of birth control, of which 1 must be highly effective and 1 must be a barrier method throughout the study and for 3 months after final enzalutamide administration.
- Subject agrees to avoid sperm donation during the study and for at least 3 months after final enzalutamide administration.
Key exclusion criteria (14 listed)
- Subject met any of the discontinuation criteria or whose cancer progressed on the current enzalutamide clinical study in which subject is enrolling from.
- Subject requires treatment with or plans to use either of the following:
- Subject is currently participating in an investigator-initiated interventional trial and receiving enzalutamide.
- Subject has any concurrent disease, infection, or comorbid condition that interferes with the ability of the subject to participate in the study, which places the subject at undue risk or complicates the interpretation of data.
- Subject met any of the discontinuation criteria or whose cancer progressed on the current enzalutamide clinical study in which they are enrolling from.
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 |
|---|---|---|
| enzalutamideAlso: MDV3100, XtandiSubjects will receive enzalutamide orally once daily at the same time each day. | Drug | Enzalutamide plus leuprolide acetate, enzalutamide, enzalutamide plus abiraterone acetate and prednisone |
| abiraterone acetateSubjects enrolling from study 9785-CL-0011 or MDV3100-10 (PLATO) study may receive abiraterone acetate once daily and prednisone twice daily, in addition to enzalutamide | Drug | enzalutamide plus abiraterone acetate and prednisone |
| prednisoneSubjects enrolling from study 9785-CL-0011 or MDV3100-10 (PLATO) study may receive abiraterone acetate once daily and prednisone twice daily, in addition to enzalutamide | Drug | enzalutamide plus abiraterone acetate and prednisone |
| Leuprolide acetateSubjects enrolling from study MDV3100-13 (EMBARK) study may receive leuprolide acetate once every 12 weeks in addition to enzalutamide once daily | Drug | Enzalutamide plus leuprolide acetate |
Primary outcome
Number of participants with adverse events
Time frame: Until End of Study (Up to 96 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 13 Oct 2026.
- Individual participant dataSharing planned: Yes. Access to anonymized individual participant level data collected during the study, in addition to study-related supporting documentation, is planned for studies conducted with approved product indications and formulations, as well as products terminated during development. Studies conducted with product indications or formulations that remain active in development are assessed after study completion to determine if Individual Participant Data can be shared. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.
Related trials for Prostate Cancer
Active, not recruiting
Streamlined Geriatric and Oncological Evaluation Based On IC Technology
Breast Cancer, Comorbidities and Coexisting Conditions
Active, not recruitingObservational study
MRI Fusion Biopsy vs. Micro-Ultrasound Guided Biopsy
Prostate Cancer
Enrolling by invitationObservational study
Natural History Study of Early Life Exposures in Agriculture (ELEA)
Prostate Cancer, Leukemia
Not yet recruitingPhase 1/2
STAR0602 With Nivolumab in Non Small Cell Lung Cancer and in Metastatic Castrate-Resistant Prostate Cancer, and STAR0602 Alone in Thymic Carcinoma
NSCLC, Non-Small Cell Lung Cancer
Recruiting
Rehabilitation and Sex Therapy to Optimize Recovery After Prostate Cancer Treatment
Prostate Cancer, Urinary Incontinence
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. This study is not recruiting at the moment.
Associate Medical Director study director
Astellas Pharma Global Development, Inc.
233 sites in 38 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing enzalutamide, abiraterone acetate and prednisone in people with Prostate Cancer, run by Astellas Pharma Global Development, Inc. at 233 sites in 38 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 27 inclusion and 14 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: under way, not looking for participants, as of the sponsor's last update on 13 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 233 sites in United States, Japan, Australia, France, United Kingdom and 33 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of participants with adverse events (time frame: Until End of Study (Up to 96 Months)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 13 Oct 2026.