Prostate NeoplasmsPhase 3NCT01715285
A Study of Abiraterone Acetate Plus Low-Dose Prednisone Plus Androgen Deprivation Therapy (ADT) Versus ADT Alone in Newly Diagnosed Participants With High-Risk, Metastatic Hormone-Naive Prostate Cancer (mHNPC)
A Phase 3 study testing Abiraterone acetate, Prednisone and Androgen deprivation therapy (ADT) in people with Prostate Neoplasms, run by Janssen Research & Development, LLC at 208 sites in 33 countries.
Trial summary
The purpose of this study is to determine if newly diagnosed (within previous 3 months) participants with metastatic (spread of cancer cells from one part of the body to another ) hormone-naive prostate cancer (mHNPC) who have high-risk prognostic factors will benefit from the addition of abiraterone acetate plus… Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Prostate Neoplasms
- What is being tested?
- Abiraterone acetate, Prednisone and Androgen deprivation therapy (ADT)
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 1,209 participants
- Where
- 208 sitesin 33 countries
- Study dates
- 12 Feb 2013to 13 Feb 2022
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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
- Newly diagnosed metastatic prostate cancer within 3 months prior to randomization with histologically or cytologically confirmed adenocarcinoma of the prostate without neuroendocrine differentiation or small cell histology
- Distant metastatic disease documented by positive bone scan or metastatic lesions on computed tomography (CT) or magnetic resonance imaging (MRI) scan
- At least 2 of the following high-risk prognostic factors: Gleason score of greater than or equal to (>=8); presence of 3 or more lesions on bone scan; presence of measurable visceral (excluding lymph node disease) metastasis on CT or MRI Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 scan
- Eastern Cooperative Oncology Group (ECOG) performance status grade of 0, 1 or 2
- Adequate hematologic, hepatic, and renal function
- Agrees to protocol-defined use of effective contraception
Who cannot join
- Active infection or other medical condition that would make prednisone use contraindicated
- Any chronic medical condition requiring a higher systemic dose of corticosteroid than 5 mg prednisone per day
- Pathological finding consistent with small cell carcinoma of the prostate
- Known brain metastasis
- Any prior pharmacotherapy, radiation therapy, or surgery for metastatic prostate cancer (the following exception are permitted): up to 3 months of androgen deprivation therapy (ADT) with lutenizing hormone releasing hormone agonists or antagonists or orchiectomy with or without concurrent anti-androgens prior Cycle 1 Day 1; participants may have one course of palliative radiation or surgical therapy to treat symptoms resulting from metastatic disease if it was administered at least 28 days prior to Cycle 1 Day 1)
Trial locations and contacts
208 sites in 33 countries.
208 sites in 33 countries
Russia21 sites
Study site
Chelyabinsk
Study site
Ivanovo
Study site
Izhevsk
Study site
Moscow
Study site
Nizhny Novgorod
Study site
Obninsk
Study site
Omsk
Study site
Orenburg
Study site
Pyatigorsk
Study site
Rostov-on-Don
Study site
Ryazan
Study site
Saint Petersburg
Study site
Saransk
Study site
Saratov
Study site
Sochi
Study site
Stavropol
Study site
Tyumen
Study site
Ufa
Study site
Volgograd
Study site
Yekaterinburg
Study site
Yoshkar-Ola
Brazil14 sites
Study site
Barretos
Study site
Belo Horizonte
Study site
Caxias do Sul
Study site
Curitiba
Study site
Ijuí
Study site
Jaú
Study site
Natal
Study site
Novo Hamburgo
Study site
Porto Alegre
Study site
Ribeirão Preto
Study site
Rio de Janeiro
Study site
Salvador
Study site
São José do Rio Preto
Study site
São Paulo
Japan12 sites
Study site
Chiba
Study site
Gifu
Study site
Kashiwa
Study site
Matsuyama
Study site
Nankoku
Study site
Ōsaka-sayama
Study site
Sakura
Study site
Tokushima
Study site
Tokyo
Study site
Ube
Study site
Yokohama
Study site
Yufu
Belgium10 sites
Study site
Antwerp
Study site
Bonheiden
Study site
Brasschaat
Study site
Brussels
Study site
Charleroi
Study site
Liège
Study site
Namur
Study site
Ottignies
Study site
Sint-Niklaas
Study site
Yvoir
Canada10 sites
Study site
Edmonton, Alberta
Study site
Hamilton, Ontario
Study site
Kingston, Ontario
Study site
Montreal, Quebec
Study site
Oshawa, Ontario
Study site
Ottawa, Ontario
Study site
Québec, Quebec
Study site
Toronto, Ontario
Study site
Vancouver, British Columbia
Study site
Winnipeg, Manitoba
China10 sites
Study site
Beijing
Study site
Chengdu
Study site
Chongqing
Study site
Guangzhou
Study site
Hangzhou
Study site
Nanjing
Study site
Shanghai
Study site
Suzhou
Study site
Tianjin
Study site
Wuhan
Ukraine10 sites
Study site
Cherkassy
Study site
Dnipro
Study site
Khakhiv
Study site
Kharkiv
Study site
Kyiv
Study site
Lviv
Study site
Makiivka
Study site
Odesa
Study site
Uzhhorod
Study site
Zaporizhzhya
Mexico8 sites
Study site
Chihuahua City
Study site
Cuernavaca
Study site
Durango
Study site
Guadalajara
Study site
Monterrey
Study site
Oaxaca City
Study site
Pachuca
Study site
Zapopan
France7 sites
Study site
La Chaussée-Saint-Victor
Study site
Lille
Study site
Montpellier
Study site
Paris
Study site
Suresnes
Study site
Toulouse
Study site
Villejuif
Israel7 sites
Study site
Beer Yaakov
Study site
Beersheba
Study site
Haifa
Study site
Jerusalem
Study site
Kfar Saba
Study site
Petah Tikva
Study site
Ramat Gan
Netherlands7 sites
Study site
Alkmaar
Study site
Amsterdam
Study site
Amsterdam-Zuidoost
Study site
Hilversum
Study site
Hoofddorp
Study site
Nieuwegein
Study site
Rotterdam
Australia6 sites
Study site
Adelaide
Study site
Footscray
Study site
Liverpool
Study site
Malvern
Study site
Randwick
Study site
Wahroonga
Slovakia6 sites
Study site
Košice-Šaca
Study site
Martin
Study site
Piešťany
Study site
Prešov
Study site
Rimavská Sobota
Study site
Trnava
South Korea6 sites
Study site
Bucheon-si
Study site
Busan
Study site
Daegu
Study site
Daejeon
Study site
Gyeonggi-do
Study site
Seoul
United Kingdom6 sites
Study site
Cambridge
Study site
Glasgow
Study site
Manchester
Study site
Nottingham
Study site
Oxford
Study site
Plymouth
Argentina5 sites
Study site
Buenos Aires
Study site
Caba
Study site
Córdoba
Study site
La Rioja
Study site
Rosario
Denmark5 sites
Study site
Aarhus N
Study site
Holsterbro
Study site
Odense
Study site
Roskilde
Study site
Vejle
Hungary5 sites
Study site
Budapest
Study site
Győr
Study site
Miskolc
Study site
Pécs
Study site
Szentes
Poland5 sites
Study site
Bydgoszcz
Study site
Gdansk
Study site
Lodz
Study site
Lublin
Study site
Warsaw
Spain5 sites
Study site
A Coruña
Study site
Barcelona
Study site
Córdoba
Study site
Madrid
Study site
Murcia
Sweden5 sites
Study site
Gothenburg
Study site
Malmö
Study site
Stockholm
Study site
Umeå
Study site
Uppsala
Turkey (Türkiye)5 sites
Study site
Adana
Study site
Ankara
Study site
Istanbul
Study site
Izmir
Study site
Zonguldak
Czechia4 sites
Study site
Hradec Králové
Study site
Olomouc
Study site
Pilsen
Study site
Prague
New Zealand4 sites
Study site
Auckland
Study site
Christchurch
Study site
Hamilton
Study site
Tauranga
Portugal4 sites
Study site
Braga
Study site
Coimbra
Study site
Lisbon
Study site
Porto
Romania4 sites
Study site
Brasov
Study site
Bucharest
Study site
Cluj-Napoca
Study site
Iași
South Africa4 sites
Study site
George
Study site
Port Elizabeth
Study site
Pretoria
Study site
Vosloorus
About this study
Official title: A Randomized, Double-blind, Comparative Study of Abiraterone Acetate Plus Low-Dose Prednisone Plus Androgen Deprivation Therapy (ADT) Versus ADT Alone in Newly Diagnosed Subjects With High-Risk, Metastatic Hormone-naive Prostate Cancer (mHNPC)
The purpose of this study is to determine if newly diagnosed (within previous 3 months) participants with metastatic (spread of cancer cells from one part of the body to another ) hormone-naive prostate cancer (mHNPC) who have high-risk prognostic factors will benefit from the addition of abiraterone acetate plus low-dose prednisone to androgen deprivation therapy (ADT; lutenizing hormone releasing hormone [LHRH] agonists or surgical castration).
Read the detailed description
This is a randomized (the treatment group is assigned by chance), double-blind (neither physician nor participant knows the treatment that the participant receives), placebo (an inactive substance that is compared with a drug to test whether the drug has a real effect in a clinical trial)-controlled study designed to determine the efficacy of abiraterone acetate plus low-dose prednisone in participants with mHNPC. The study consists of 4 parts: Screening Phase (that is, 28 days before study commences on Day 1); Double-blind treatment Phase (consists of 4-week dosing cycles wherein abiraterone acetate will be administered as 1,000 milligram [mg] plus 5 mg prednisone or only placebo orally); Follow-up Phase (every 4 months up to 60 months or until death, lost to follow up, withdrawal of consent or study termination) Open-label Extension (OLE) Phase. Participants in the Double-blind Treatment Phase will have the opportunity to enroll into the OLE Phase. The OLE Phase will allow participants to receive active drug (abiraterone acetate plus prednisone) until Long-term Extension (LTE) Phase for an additional period of up to 3 years. Participants will discontinue study treatment at disease progression or unacceptable toxicity unless, in the Investigator's opinion, it is deemed that the participants will continue to derive benefit from study treatment. Participants will be randomized in a 1:1 ratio to the active treatment group (abiraterone acetate 1000 mg daily plus prednisone 5 mg daily plus ADT) or the control group (ADT plus placebos).Efficacy will be evaluated primarily by overall survival and radiographic progression-free survival. Participants' safety will be monitored throughout the study.
- Conditions
- Prostate Neoplasms
- Being tested
- Abiraterone acetate, Prednisone, Androgen deprivation therapy (ADT), Abiraterone acetate Placebo, Prednisone Placebo
- Keywords
- Prostate neoplasms, Prostate cancer, Metastatic prostate cancer, Abiraterone acetate, ZYTIGA, Prednisone, Androgen deprivation therapy
- Medical subject headings
- Prostatic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Abiraterone acetateDrug
Also called Zytiga
Abiraterone acetate tablets will be administered orally at a total dose of 1000 mg per day until disease progression, withdrawal of consent or unacceptable toxicity.
PrednisoneDrug
Prednisone 5 mg capsule will be administered orally once daily until disease progression, withdrawal of consent or unacceptable toxicity.
Androgen deprivation therapy (ADT)Other
All participants will receive stable regimen of ADT, that is, lutenizing hormone releasing hormone (LHRH) agonists or surgical castration according to local guidelines until disease progression, withdrawal of consent or unacceptable toxicity.
Abiraterone acetate PlaceboDrug
Placebo matched to abiraterone acetate will be administered orally once daily until disease progression, withdrawal of consent or unacceptable toxicity.
Prednisone PlaceboDrug
Placebo matched to prednisone will be administered orally once daily until disease progression, withdrawal of consent or unacceptable toxicity.
| Study group | Role | What they receive |
|---|---|---|
| Abiraterone acetate + Prednisone + ADT | Experimental | Participants will receive abiraterone acetate tablet at a total dose of 1000 milligram (mg) plus 5 mg capsule of prednisone orally once daily until disease progression, withdrawal of consent or unacceptable toxicity. Stable regimen of androgen deprivation therapy (ADT) will be administered. Receives: Drug: Abiraterone acetate; Drug: Prednisone; Other: Androgen deprivation therapy (ADT) |
| Placebo + Androgen Deprivation Therapy (ADT) | Placebo comparator | Participants will receive placebo matched to abiraterone acetate plus prednisone orally once daily until disease progression, withdrawal of consent or unacceptable toxicity. Stable regimen of ADT will be administered. Receives: Other: Androgen deprivation therapy (ADT); Drug: Abiraterone acetate Placebo; Drug: Prednisone Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Radiographic Progression-Free Survival (PFS)
Radiographic PFS was defined as the time (in months) interval from randomization to the first date of radiographic progression or death. Radiographic progression included progression by bone scan (according to modified Prostate Cancer Working Group 2 [PCWG2] criteria), defined as at least 2 new lesions on bone scan and progression of soft tissue lesions by computed tomography (CT) or magnetic resonance imaging (MRI) (according to Response Evaluation Criteria in Solid Tumors [RECIST] 1.1 criteria). As per the RECIST 1.1 guideline, progression requires a 20 percent (%) increase in the sum of diameters of all target lesions and a minimum absolute increase of 5 millimeter (mm) in the sum as compared to nadir sum of diameter.
Measured: Up to 44 months
Overall Survival (OS)
Overall survival was defined as the time from randomization to date of death from any cause.
Measured: Up to 66 months
Secondary outcomes (5)
Time to Initiation of Chemotherapy
Time to initiation of chemotherapy was defined as the time (in months) interval from the date of randomization to the date of initiation of cytotoxic chemotherapy for prostate cancer.
Measured: Up to 66 months
Time to Subsequent Therapy for Prostate Cancer
Time to subsequent therapy was defined as the time (in months) interval from the date of randomization to the date of initiation of subsequent therapy for prostate cancer.
Measured: Up to 66 months
Time to Pain Progression
Time to pain progression was defined as the time (in months) interval from randomization to the first date a participant experienced a greater than or equal to (>=) 30 percent (%) increase in Brief Pain Inventory-Short Form (BPI-SF) from baseline in the BPI-SF worst pain intensity (Item 3) observed at 2 consecutive evaluations (>=4) weeks apart. BPI-SF was an 11-item questionnaire, designed to assess severity and impact of pain on daily functions. Total score ranged from 0 to 10 with 0 representing "no pain" and 10 representing" pain as bad as you can imagine.
Measured: Up to 66 months
Time to Skeletal-Related Event
Time to skeletal-related event was defined as the earliest of the following: clinical or pathological fracture, spinal cord compression, palliative radiation to bone, or surgery to bone.
Measured: Up to 66 months
Time to Prostate-Specific Antigen (PSA) Progression
Time to PSA progression was defined as the time (in months) interval from the date of randomization to the date of PSA progression, according to PCWG2 criteria. PCWG2 defines PSA progression as the date that a 25 percent (%) or greater increase and an absolute increase of 2 nanogram per milliliter (ng/mL) or more from the nadir is documented, which is confirmed by a second value obtained 3 or more weeks later.
Measured: Up to 66 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Oct 2012 (estimated)
- Study start12 Feb 2013
- Primary completion31 Oct 2016
- Study completion13 Feb 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for Prostate NeoplasmsStudies of the same condition, open and under way.
- More trials run by Janssen Research & Development, 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
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 1,209 participants (actual)
Sponsor and investigators
- Lead sponsor
- Janssen Research & Development, LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Janssen Research & Development, LLC Clinical Trial, Study director, Janssen Research & Development, LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01715285
- Sponsor's protocol ID
- CR100900
- Other IDs
- 212082PCR3011, 2012-002940-26, U1111-1135-7146
- Status last verified
- Jan 2025
- First submitted
- 24 Oct 2012
- Last updated
- 4 Feb 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated device
- No
Publications
Koroki Y, Taguri M. Clinical Outcomes of First Subsequent Therapies After Abiraterone Acetate Plus Prednisone for High-Risk Metastatic Castration-Sensitive Prostate Cancer in the LATITUDE Study. Target Oncol. 2023 Jan;18(1):119-128. doi: 10.1007/s11523-022-00929-3. Epub 2022 Nov 28.
PubMed 36443540Koroki Y, Taguri M, Matsubara N, Fizazi K. Estimation of Overall Survival with Subsequent Treatment Effect by Applying Inverse Probability of Censoring Weighting in the LATITUDE Study. Eur Urol Open Sci. 2022 Jan 6;36:51-58. doi: 10.1016/j.euros.2021.11.012. eCollection 2022 Feb.
PubMed 35098170Baciarello G, Ozguroglu M, Mundle S, Leitz G, Richarz U, Hu P, Feyerabend S, Matsubara N, Chi KN, Fizazi K. Impact of abiraterone acetate plus prednisone in patients with castration-sensitive prostate cancer and visceral metastases over four years of follow-up: A post-hoc exploratory analysis of the LATITUDE study. Eur J Cancer. 2022 Feb;162:56-64. doi: 10.1016/j.ejca.2021.11.026. Epub 2021 Dec 23.
PubMed 34953443Azad AA, Armstrong AJ, Alcaraz A, Szmulewitz RZ, Petrylak DP, Holzbeierlein J, Villers A, Alekseev B, Iguchi T, Shore ND, Gomez-Veiga F, Rosbrook B, Lee HJ, Haas GP, Stenzl A. Efficacy of enzalutamide in subgroups of men with metastatic hormone-sensitive prostate cancer based on prior therapy, disease volume, and risk. Prostate Cancer Prostatic Dis. 2022 Feb;25(2):274-282. doi: 10.1038/s41391-021-00436-y. Epub 2021 Aug 21.
PubMed 34420037Feyerabend S, Saad F, Perualila NJ, Van Sanden S, Diels J, Ito T, De Porre P, Fizazi K. Adjusting Overall Survival Estimates for Treatment Switching in Metastatic, Castration-Sensitive Prostate Cancer: Results from the LATITUDE Study. Target Oncol. 2019 Dec;14(6):681-688. doi: 10.1007/s11523-019-00685-x.
PubMed 31754962Fizazi K, Tran N, Fein L, Matsubara N, Rodriguez-Antolin A, Alekseev BY, Ozguroglu M, Ye D, Feyerabend S, Protheroe A, Sulur G, Luna Y, Li S, Mundle S, Chi KN. Abiraterone acetate plus prednisone in patients with newly diagnosed high-risk metastatic castration-sensitive prostate cancer (LATITUDE): final overall survival analysis of a randomised, double-blind, phase 3 trial. Lancet Oncol. 2019 May;20(5):686-700. doi: 10.1016/S1470-2045(19)30082-8. Epub 2019 Apr 12.
PubMed 30987939Li T, Franco-Villalobos C, Proskorovsky I, Sorensen SV, Tran N, Sulur G, Chi KN. Medical resource utilization of abiraterone acetate plus prednisone added to androgen deprivation therapy in metastatic castration-naive prostate cancer: Results from LATITUDE. Cancer. 2019 Feb 15;125(4):626-632. doi: 10.1002/cncr.31847. Epub 2018 Dec 6.
PubMed 30521063Chi KN, Protheroe A, Rodriguez-Antolin A, Facchini G, Suttman H, Matsubara N, Ye Z, Keam B, Damiao R, Li T, McQuarrie K, Jia B, De Porre P, Martin J, Todd MB, Fizazi K. Patient-reported outcomes following abiraterone acetate plus prednisone added to androgen deprivation therapy in patients with newly diagnosed metastatic castration-naive prostate cancer (LATITUDE): an international, randomised phase 3 trial. Lancet Oncol. 2018 Feb;19(2):194-206. doi: 10.1016/S1470-2045(17)30911-7. Epub 2018 Jan 8.
PubMed 29326030Fizazi K, Tran N, Fein L, Matsubara N, Rodriguez-Antolin A, Alekseev BY, Ozguroglu M, Ye D, Feyerabend S, Protheroe A, De Porre P, Kheoh T, Park YC, Todd MB, Chi KN; LATITUDE Investigators. Abiraterone plus Prednisone in Metastatic, Castration-Sensitive Prostate Cancer. N Engl J Med. 2017 Jul 27;377(4):352-360. doi: 10.1056/NEJMoa1704174. Epub 2017 Jun 4.
PubMed 28578607
Study at a glance
From the registry record, last updated by the sponsor on 4 Feb 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Double-blind, Comparative Study of Abiraterone Acetate Plus Low-Dose Prednisone Plus Androgen Deprivation Therapy (ADT) Versus ADT Alone in Newly Diagnosed Subjects With High-Risk, Metastatic Hormone-naive Prostate Cancer (mHNPC)
- ClinicalTrials.gov ID
- NCT01715285
- Acronym / sponsor ID
- CR100900
- Conditions
- Prostate Neoplasms
- Keywords
- Prostate neoplasms, Prostate cancer, Metastatic prostate cancer, Abiraterone acetate, ZYTIGA, Prednisone, Androgen deprivation therapy
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,209 participants (actual)
- Lead sponsor
- Janssen Research & Development, LLCIndustry (pharma, biotech, devices)
- Study start
- 12 Feb 2013 (actual)
- Primary completion
- 31 Oct 2016 (actual)
- Study completion
- 13 Feb 2022 (actual)
- First posted
- 26 Oct 2012 (estimated)
- Results
- Posted 15 Oct 2018
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 determine if newly diagnosed (within previous 3 months) participants with metastatic (spread of cancer cells from one part of the body to another ) hormone-naive prostate cancer (mHNPC) who have high-risk prognostic factors will benefit from the addition of abiraterone acetate plus low-dose prednisone to androgen deprivation therapy (ADT; lutenizing hormone releasing hormone [LHRH] agonists or surgical castration).
Detailed description
This is a randomized (the treatment group is assigned by chance), double-blind (neither physician nor participant knows the treatment that the participant receives), placebo (an inactive substance that is compared with a drug to test whether the drug has a real effect in a clinical trial)-controlled study designed to determine the efficacy of abiraterone acetate plus low-dose prednisone in participants with mHNPC. The study consists of 4 parts: Screening Phase (that is, 28 days before study commences on Day 1); Double-blind treatment Phase (consists of 4-week dosing cycles wherein abiraterone acetate will be administered as 1,000 milligram [mg] plus 5 mg prednisone or only placebo orally); Follow-up Phase (every 4 months up to 60 months or until death, lost to follow up, withdrawal of consent or study termination) Open-label Extension (OLE) Phase. Participants in the Double-blind Treatment Phase will have the opportunity to enroll into the OLE Phase. The OLE Phase will allow participants to receive active drug (abiraterone acetate plus prednisone) until Long-term Extension (LTE) Phase for an additional period of up to 3 years. Participants will discontinue study treatment at disease progression or unacceptable toxicity unless, in the Investigator's opinion, it is deemed that the participants will continue to derive benefit from study treatment. Participants will be randomized in a 1:1 ratio to the active treatment group (abiraterone acetate 1000 mg daily plus prednisone 5 mg daily plus ADT) or the control group (ADT plus placebos).Efficacy will be evaluated primarily by overall survival and radiographic progression-free survival. Participants' safety will be monitored throughout the study.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Abiraterone acetate + Prednisone + ADT | Experimental | Drug: Abiraterone acetate, Drug: Prednisone, Other: Androgen deprivation therapy (ADT)Participants will receive abiraterone acetate tablet at a total dose of 1000 milligram (mg) plus 5 mg capsule of prednisone orally once daily until disease progression, withdrawal of consent or unacceptable toxicity. Stable regimen of androgen deprivation therapy (ADT) will be administered. |
| Placebo + Androgen Deprivation Therapy (ADT) | Placebo comparator | Other: Androgen deprivation therapy (ADT), Drug: Abiraterone acetate Placebo, Drug: Prednisone PlaceboParticipants will receive placebo matched to abiraterone acetate plus prednisone orally once daily until disease progression, withdrawal of consent or unacceptable toxicity. Stable regimen of ADT will be administered. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (6 listed)
- Newly diagnosed metastatic prostate cancer within 3 months prior to randomization with histologically or cytologically confirmed adenocarcinoma of the prostate without neuroendocrine differentiation or small cell histology
- Distant metastatic disease documented by positive bone scan or metastatic lesions on computed tomography (CT) or magnetic resonance imaging (MRI) scan
- At least 2 of the following high-risk prognostic factors: Gleason score of greater than or equal to (>=8); presence of 3 or more lesions on bone scan; presence of measurable visceral (excluding lymph node disease) metastasis on CT or MRI Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 scan
- Eastern Cooperative Oncology Group (ECOG) performance status grade of 0, 1 or 2
- Adequate hematologic, hepatic, and renal function
Key exclusion criteria (5 listed)
- Active infection or other medical condition that would make prednisone use contraindicated
- Any chronic medical condition requiring a higher systemic dose of corticosteroid than 5 mg prednisone per day
- Pathological finding consistent with small cell carcinoma of the prostate
- Known brain metastasis
- Any prior pharmacotherapy, radiation therapy, or surgery for metastatic prostate cancer (the following exception are permitted): up to 3 months of androgen deprivation therapy (ADT) with lutenizing hormone releasing hormone agonists or antagonists or orchiectomy with or without concurrent anti-androgens prior Cycle 1 Day 1; participants may have one course of palliative radiation or surgical therapy to treat symptoms resulting from metastatic disease if it was administered at least 28 days prior to Cycle 1 Day 1)
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 |
|---|---|---|
| Abiraterone acetateAlso: ZytigaAbiraterone acetate tablets will be administered orally at a total dose of 1000 mg per day until disease progression, withdrawal of consent or unacceptable toxicity. | Drug | Abiraterone acetate + Prednisone + ADT |
| PrednisonePrednisone 5 mg capsule will be administered orally once daily until disease progression, withdrawal of consent or unacceptable toxicity. | Drug | Abiraterone acetate + Prednisone + ADT |
| Androgen deprivation therapy (ADT)All participants will receive stable regimen of ADT, that is, lutenizing hormone releasing hormone (LHRH) agonists or surgical castration according to local guidelines until disease progression, withdrawal of consent or unacceptable toxicity. | Other | Abiraterone acetate + Prednisone + ADT, Placebo + Androgen Deprivation Therapy (ADT) |
| Abiraterone acetate PlaceboPlacebo matched to abiraterone acetate will be administered orally once daily until disease progression, withdrawal of consent or unacceptable toxicity. | Drug | Placebo + Androgen Deprivation Therapy (ADT) |
| Prednisone PlaceboPlacebo matched to prednisone will be administered orally once daily until disease progression, withdrawal of consent or unacceptable toxicity. | Drug | Placebo + Androgen Deprivation Therapy (ADT) |
Primary outcome
Radiographic Progression-Free Survival (PFS)
Time frame: Up to 44 months
Radiographic PFS was defined as the time (in months) interval from randomization to the first date of radiographic progression or death. Radiographic progression included progression by bone scan (according to modified Prostate Cancer Working Group 2 [PCWG2] criteria), defined as at least 2 new lesions on bone scan and progression of soft tissue lesions by computed tomography (CT) or magnetic resonance imaging (MRI) (according to Response Evaluation Criteria in Solid Tumors [RECIST] 1.1 criteria). As per the RECIST 1.1 guideline, progression requires a 20 percent (%) increase in the sum of diameters of all target lesions and a minimum absolute increase of 5 millimeter (mm) in the sum as compared to nadir sum of diameter.
Overall Survival (OS)
Time frame: Up to 66 months
Overall survival was defined as the time from randomization to date of death from any cause.
5 secondary outcomes
Time to Initiation of Chemotherapy
Time frame: Up to 66 months
Time to Subsequent Therapy for Prostate Cancer
Time frame: Up to 66 months
Time to Pain Progression
Time frame: Up to 66 months
Time to Skeletal-Related Event
Time frame: Up to 66 months
Time to Prostate-Specific Antigen (PSA) Progression
Time frame: Up to 66 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Feb 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 36443540Koroki Y, Taguri M. Clinical Outcomes of First Subsequent Therapies After Abiraterone Acetate Plus Prednisone for High-Risk Metastatic Castration-Sensitive Prostate Cancer in the LATITUDE Study. Target Oncol. 2023 Jan;18(1):119-128. doi: 10.1007/s11523-022-00929-3. Epub 2022 Nov 28.
- Derived from this study: PubMed 35098170Koroki Y, Taguri M, Matsubara N, Fizazi K. Estimation of Overall Survival with Subsequent Treatment Effect by Applying Inverse Probability of Censoring Weighting in the LATITUDE Study. Eur Urol Open Sci. 2022 Jan 6;36:51-58. doi: 10.1016/j.euros.2021.11.012. eCollection 2022 Feb.
- Derived from this study: PubMed 34953443Baciarello G, Ozguroglu M, Mundle S, Leitz G, Richarz U, Hu P, Feyerabend S, Matsubara N, Chi KN, Fizazi K. Impact of abiraterone acetate plus prednisone in patients with castration-sensitive prostate cancer and visceral metastases over four years of follow-up: A post-hoc exploratory analysis of the LATITUDE study. Eur J Cancer. 2022 Feb;162:56-64. doi: 10.1016/j.ejca.2021.11.026. Epub 2021 Dec 23.
- Derived from this study: PubMed 34420037Azad AA, Armstrong AJ, Alcaraz A, Szmulewitz RZ, Petrylak DP, Holzbeierlein J, Villers A, Alekseev B, Iguchi T, Shore ND, Gomez-Veiga F, Rosbrook B, Lee HJ, Haas GP, Stenzl A. Efficacy of enzalutamide in subgroups of men with metastatic hormone-sensitive prostate cancer based on prior therapy, disease volume, and risk. Prostate Cancer Prostatic Dis. 2022 Feb;25(2):274-282. doi: 10.1038/s41391-021-00436-y. Epub 2021 Aug 21.
- Derived from this study: PubMed 31754962Feyerabend S, Saad F, Perualila NJ, Van Sanden S, Diels J, Ito T, De Porre P, Fizazi K. Adjusting Overall Survival Estimates for Treatment Switching in Metastatic, Castration-Sensitive Prostate Cancer: Results from the LATITUDE Study. Target Oncol. 2019 Dec;14(6):681-688. doi: 10.1007/s11523-019-00685-x.
- Derived from this study: PubMed 30987939Fizazi K, Tran N, Fein L, Matsubara N, Rodriguez-Antolin A, Alekseev BY, Ozguroglu M, Ye D, Feyerabend S, Protheroe A, Sulur G, Luna Y, Li S, Mundle S, Chi KN. Abiraterone acetate plus prednisone in patients with newly diagnosed high-risk metastatic castration-sensitive prostate cancer (LATITUDE): final overall survival analysis of a randomised, double-blind, phase 3 trial. Lancet Oncol. 2019 May;20(5):686-700. doi: 10.1016/S1470-2045(19)30082-8. Epub 2019 Apr 12.
- Derived from this study: PubMed 30521063Li T, Franco-Villalobos C, Proskorovsky I, Sorensen SV, Tran N, Sulur G, Chi KN. Medical resource utilization of abiraterone acetate plus prednisone added to androgen deprivation therapy in metastatic castration-naive prostate cancer: Results from LATITUDE. Cancer. 2019 Feb 15;125(4):626-632. doi: 10.1002/cncr.31847. Epub 2018 Dec 6.
- Derived from this study: PubMed 29326030Chi KN, Protheroe A, Rodriguez-Antolin A, Facchini G, Suttman H, Matsubara N, Ye Z, Keam B, Damiao R, Li T, McQuarrie K, Jia B, De Porre P, Martin J, Todd MB, Fizazi K. Patient-reported outcomes following abiraterone acetate plus prednisone added to androgen deprivation therapy in patients with newly diagnosed metastatic castration-naive prostate cancer (LATITUDE): an international, randomised phase 3 trial. Lancet Oncol. 2018 Feb;19(2):194-206. doi: 10.1016/S1470-2045(17)30911-7. Epub 2018 Jan 8.
- Derived from this study: PubMed 28578607Fizazi K, Tran N, Fein L, Matsubara N, Rodriguez-Antolin A, Alekseev BY, Ozguroglu M, Ye D, Feyerabend S, Protheroe A, De Porre P, Kheoh T, Park YC, Todd MB, Chi KN; LATITUDE Investigators. Abiraterone plus Prednisone in Metastatic, Castration-Sensitive Prostate Cancer. N Engl J Med. 2017 Jul 27;377(4):352-360. doi: 10.1056/NEJMoa1704174. Epub 2017 Jun 4.
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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. This study is not recruiting at the moment.
Janssen Research & Development, LLC Clinical Trial study director
Janssen Research & Development, LLC
208 sites in 33 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Abiraterone acetate, Prednisone and Androgen deprivation therapy (ADT) in people with Prostate Neoplasms, run by Janssen Research & Development, LLC at 208 sites in 33 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 6 inclusion and 5 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: finished, as of the sponsor's last update on 4 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 208 sites in Russia, Brazil, Japan, Belgium, Canada and 28 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. Some participants in this study may receive a placebo. 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?
Yes. Results are posted in the registry (first posted 15 Oct 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Radiographic Progression-Free Survival (PFS) (time frame: Up to 44 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 NCT01715285, which also lists 9 linked publications.
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 4 Feb 2025.