CClinicalTrials.gg
CompletedNCT02985957CheckMate 650Updated Dec 22, 2025Results posted

A Study of Nivolumab Plus Ipilimumab, Ipilimumab Alone, or Cabazitaxel in Men With Metastatic Castration-Resistant Prostate Cancer (CheckMate 650)

A Phase 2 interventional study of Nivolumab and Ipilimumab in Prostate Cancer, sponsored by Bristol-Myers Squibb. Completed at 59 sites in 10 countries. Open to male participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-12-22.

Sponsored by Bristol-Myers Squibb · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
351
Allocation
Randomized
Ages
18 Years and older
Sex
Male
01

Study summary

The purpose of this study is to evaluate the effectiveness, safety and tolerability of nivolumab followed by ipilimumab, in subjects with metastatic castration resistant prostate cancer (mCRPC).

02

Conditions studied

  • Prostate Cancer

Browse trials for

03

In context

Prostatic Neoplasms

6,370 studies on the registry are indexed under Prostatic Neoplasms; 1,400 are open to participants now.

This study's enrollment of 351 is above the median of 58 across 4,822 interventional studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

Bristol-Myers Squibb is the lead sponsor of 1,538 studies on the registry; 116 are open to participants now.

Of its 429 completed or terminated interventional studies of FDA-regulated products, 223 (52%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
No

Inclusion criteria

  • Eastern Cooperative Oncology Group (ECOG) performance status 0-1
  • Current evidence of metastatic disease documented by either bone lesions on radionuclide bone scan and/or soft tissue lesions on computerized tomography/magnetic resonance imaging (CT/MRI).
  • Ongoing androgen deprivation therapy (ADT) with a Gonadotropin-releasing hormone (GnRH) analogue or a surgical/medical castration with testosterone level of ≤1.73nmol/L (50ng/dL)

For crossover phase for participants originally randomized to Arm D3 or Arm D4 only:

  • Previously randomized to Arm D3 or D4; had histologic confirmation of adenocarcinoma of the prostate and evidence of Stage IV disease (as defined by American Joint Committee of Cancer criteria (AJCC criteria) prior to randomization

Exclusion criteria

Exclusion Criteria:

  • Presence of visceral metastases in the liver
  • Active brain metastases or leptomeningeal metastases
  • Active, known, or suspected autoimmune disease or infection
  • Prior treatment with an anti-PD-1, anti-PD-L1, anti-PD-L2, or anti-CTLA-4 antibody, or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways

For crossover phase for participants originally randomized to Arm D3 or Arm D4 only:

  • Prior radiation therapy within 14 days prior to first dose of nivolumab combined with ipilimumab
  • Have received systemic anti-cancer therapy after the last dose of study treatment (ipilimumab or cabazitaxel)

Other protocol-defined inclusion/exclusion criteria apply

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
351 participants (actual)

Study arms

  • Experimental
    Cohort A (Arm A)

    Biological: Nivolumab · Biological: Ipilimumab

  • Experimental
    Cohort B (Arm B)

    Biological: Nivolumab · Biological: Ipilimumab

  • Experimental
    Cohort C (Arm C)

    Biological: Nivolumab · Biological: Ipilimumab

  • Experimental
    Cohort D (Arm D1)

    Biological: Nivolumab · Biological: Ipilimumab

  • Experimental
    Cohort D (Arm D2)

    Biological: Nivolumab · Biological: Ipilimumab

  • Experimental
    Cohort D (Arm D3)

    Biological: Ipilimumab

  • Experimental
    Cohort D (Arm D4)

    Drug: Cabazitaxel · Drug: Prednisone

Interventions

  • BiologicalNivolumab

    Specified dose on specified days

    Also known as: BMS-936558, Opdivo

  • BiologicalIpilimumab

    Specified dose on specified days

    Also known as: BMS-734016, Yervoy

  • DrugCabazitaxel

    Specified dose on specified days

  • DrugPrednisone

    Specified dose on specified days

06

What researchers measure

Primary outcomes

  1. Objective Response Rate (ORR) Cohorts B and C Per BICR

    Objective response rate (ORR) is defined as the percent of participants who had confirmed complete or partial best overall response (BOR) per retrospective Blinded Independent Central Review (BICR) among treated participants with measurable disease at baseline. For participants without documented progression by RECIST v1.1 or subsequent therapy, all available response assessments contributed to the BOR assessment. Partial Response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete Response is disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Tumor assessments were performed every 8 weeks (± 7 days) for 6 months since treatment initiation and thereafter every 12 weeks (± 7 days). Confidence-interval based on Clopper Pearson method.

    Time frame: From first dose to the date of objectively documented progression or the date of subsequent systemic anti-cancer therapy, whichever occurred first (assessed up to approximately 61 months)

  2. Objective Response Rate (ORR) Cohort D

    In Cohort D, ORR is defined as the percentage of participants who had confirmed complete or partial BOR by BICR among randomized subjects with measurable disease at baseline as entered in Interactive Response Technologies web-based system (IWRS). For participants without documented progression or subsequent therapy, all available response assessments will contribute to the BOR assessment. Partial Response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete Response is disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Tumor assessments were performed every 8 weeks (± 7 days) for 6 months since treatment initiation and thereafter every 12 weeks (± 7 days). Confidence-interval based on Clopper Pearson method.

    Time frame: From randomization to the date of objectively documented progression or the date of subsequent systemic anti-cancer therapy, whichever occurred first (assessed up to approximately 61 months)

  3. Radiographic Progression Free Survival (rPFS) for Cohorts B and C Per BICR

    Radiographic progression-free survival (rPFS) is defined as the time between the date of first treatment and the first date of documented radiographic progression or death due to any cause, whichever occurs first. The following progressive diseases were collected, documented and assessed as below: Radiographic progression per retrospective Blinded Independent Central Review (BICR) assessment 1. Bone disease progression by Prostate Cancer Working Group (PCWG2) 2. Non-bone soft tissue disease progression by RECIST v1.1 Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

    Time frame: From first dose to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 61 months)

  4. Radiographic Progression-Free Survival (rPFS) for Cohort D

    Radiographic progression-free survival (rPFS) is defined as the time between the date of randomization and the first date of documented progression per BICR or death due to any cause, whichever occurs first. The following progressive diseases were collected, documented and assessed as below: Radiographic progression per BICR assessment 1. Bone disease progression by (Prostate Cancer Working Group) PCWG2 2. Non-bone soft tissue disease progression by RECIST v1.1 Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

    Time frame: From randomization and the first date of documented progression or death due to any cause, whichever occurs first (assessed up to approximately 61 months)

Secondary outcomes

  1. Radiographic/Clinical Progression Free Survival (rcPFS) for Cohorts B and C

    Radiographic/clinical progression-free survival (rcPFS) is the time between first dose and first documented progression or death due to any cause, whichever occurred first. Radiographic progression per Investigator assessment: 1. Bone disease progression by Prostate Cancer Working Group (PCWG2) 2. Non-bone soft tissue disease progression by RECIST v1.1 Clinical progression per investigator assessment: 1. Need for palliative radiation therapy involving more than one site, OR 2. Surgery of kyphoplasty to any neoplastic lesion, OR 3. Cancer-associated clinical deterioration determined by treating physician. Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

    Time frame: From first dose to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 61 months)

  2. Radiographic/Clinical Progression Free Survival (rcPFS) for Cohort D

    Radiographic/clinical progression-free survival (rcPFS) is the time between first dose and first documented progression or death due to any cause, whichever occurred first. Radiographic progression per Investigator assessment: 1. Bone disease progression by Prostate Cancer Working Group (PCWG2) 2. Non-bone soft tissue disease progression by RECIST v1.1 Clinical progression per investigator assessment: 1. Need for palliative radiation therapy involving more than one site, OR 2. Surgery of kyphoplasty to any neoplastic lesion, OR 3. Cancer-associated clinical deterioration determined by treating physician. Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

    Time frame: From randomization and the first date of documented progression or death due to any cause, whichever occurs first (assessed up to approximately 93 months)

  3. Overall Survival (OS) Cohorts B and C

    Overall survival (OS) is defined as the time from first treatment to the date of death from any cause. For participants who were alive, their survival time was censored at the last known alive date. Overall survival was censored for participants at the date of first treatment if they had no follow-up. Based on Kaplan-Meier estimates.

    Time frame: From first dose to the date of death due to any cause (assessed up to approximately 61 months)

  4. Overall Survival (OS) Cohort D

    Overall survival (OS) is defined as the time from randomization to the date of death from any cause. For participants who were alive, their survival time was censored at the last known alive date. Overall survival was censored for participants at the date of first treatment if they had no follow-up. Based on Kaplan-Meier estimates.

    Time frame: From randomization to the date of death due to any cause (assessed up to approximately 93 months)

  5. Prostate-Specific Antigen Response Rate (PSA-RR) Cohorts B and C

    The percent of participants with a 50% or greater decrease in prostate-specific antigen (PSA) from baseline to the lowest post-baseline PSA result. BBaseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations. Confidence-interval based on Clopper Pearson method.

    Time frame: From baseline to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 61 months)

  6. Prostate-Specific Antigen Response Rate (PSA-RR) Cohort D

    The percent of participants with a 50% or greater decrease in prostate-specific antigen (PSA) from baseline to the lowest post-baseline PSA result. Baseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations. Confidence-interval based on Clopper Pearson method.

    Time frame: From baseline to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 93 months)

  7. The Number of Participants Experiencing Adverse Events (AEs) in Cohorts A, B and C

    An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation in a participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)

  8. The Number of Participants Experiencing Adverse Events (AEs) in Cohort D

    An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation in a participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)

  9. The Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohorts A, B and C

    A Serious Adverse Event (SAE) is defined as any untoward medical occurrence that at any dose results in death, is life-threatening, requires inpatient hospitalization or causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)

  10. The Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohort D

    A Serious Adverse Event (SAE) is defined as any untoward medical occurrence that at any dose results in death, is life-threatening, requires inpatient hospitalization or causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)

  11. The Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohorts A, B and C

    An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)

  12. The Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohort D

    An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)

  13. The Number of Participants Experiencing Immune Mediated Adverse Events in Cohorts A, B and C

    Immune-mediated adverse events (IMAEs) are AEs consistent with an immune-mediated mechanism or immune-mediated component for which non-inflammatory etiologies (eg, infection or tumor progression) have been ruled out. IMAEs can include events with an alternate etiology which were exacerbated by the induction of autoimmunity.

    Time frame: From first dose to 100 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 20.7 months)

  14. The Number of Participants Experiencing Immune Mediated Adverse Events in Cohort D

    Immune-mediated adverse events (IMAEs) are AEs consistent with an immune-mediated mechanism or immune-mediated component for which non-inflammatory etiologies (eg, infection or tumor progression) have been ruled out. IMAEs can include events with an alternate etiology which were exacerbated by the induction of autoimmunity.

    Time frame: From first dose to 100 days after last dose of study therapy (an average of 8.48 months assessed up to approximately 29.09 months)

  15. The Number of Participants Who Died in Cohorts A, B and C

    Death due to any cause.

    Time frame: From first dose to 100 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 20.7 months).

  16. The Number of Participants Who Died in Cohort D

    Death due to any cause.

    Time frame: From first dose to 100 days after last dose of study therapy (an average of 8.48 months assessed up to approximately 29.09 months)

  17. The Number of Participants With Changes in Laboratory Values From Baseline in Cohorts A, B and C

    The number of participants with a change in laboratory values from baseline Grade in Cohorts A, B and C.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)

  18. The Number of Participants With Changes in Laboratory Values From Baseline in Cohort D

    The number of participants with an change in laboratory values from baseline Grade in Cohort D.

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)

  19. The Number of Participants With Liver Function Laboratory Abnormalities in Cohorts A, B and C

    The number of participants with laboratory abnormalities in specific liver tests based on SI conventional units. ALT = Alanine Aminotransferase AST = Aspartate Aminotransferase ULN = Upper Limit of Normal

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)

  20. The Number of Participants With Liver Function Laboratory Abnormalities in Cohort D

    The number of participants with laboratory abnormalities in specific liver tests based on SI conventional units. ALT = Alanine Aminotransferase AST = Aspartate Aminotransferase ULN = Upper Limit of Normal

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)

  21. The Number of Participants With Thyroid Function Laboratory Abnormalities in Cohort A, B and C

    The number of participants with laboratory abnormalities in specific thyroid tests based on SI conventional units. TSH = Thyroid Stimulating Hormone LLN = Lower Limit of Normal ULN = Upper Limit of Normal

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)

  22. The Number of Participants With Thyroid Function Laboratory Abnormalities in Cohort D

    The number of participants with laboratory abnormalities in specific thyroid tests based on SI conventional units. TSH = Thyroid Stimulating Hormone LLN = Lower Limit of Normal ULN = Upper Limit of Normal

    Time frame: From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)

  23. Changes in Pain Severity as Measured by the Brief Pain Inventory-Short Form (BPI-SF) Scores Cohorts B and C

    Change between Mean BPI-SF scores at baseline and week 4 (cycle 2). The BPI-SF measures pain severity through the use of a numerical rating scale. Participants rate the severity of their pain at its ''worst,'' ''least,'' and ''average'' in the last 24 hours using an 11-point numerical rating scale with anchors of ''0 = no pain'' and ''10 = pain as bad as you can imagine.'' A higher score = a "worse" outcome. Pain Severity Score = Mean of items 3-6 (pain at its worst, pain at its least). Baseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

    Time frame: At baseline and Week 4 (Cycle 2)

  24. Changes in Pain Severity as Measured by the Brief Pain Inventory-Short Form (BPI-SF) Scores Cohort D

    Change between Mean BPI-SF scores at baseline and week 4 (cycle 2). The BPI-SF measures pain severity through the use of a numerical rating scale. Participants rate the severity of their pain at its ''worst,'' ''least,'' and ''average'' in the last 24 hours using an 11-point numerical rating scale with anchors of ''0 = no pain'' and ''10 = pain as bad as you can imagine.'' A higher score = a "worse" outcome. Pain Severity Score = Mean of items 3-6 (pain at its worst, pain at its least). Baseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

    Time frame: At baseline and 4 weeks after first dose.

  25. Change in Cancer-Related Symptoms and Quality of Life (QoL) by Functional Assessment of Cancer Therapy - Prostate (FACT-P) Questionnaire Cohort D

    The Functional Assessment of Cancer Therapy - Prostate (FACT-P) is a multidimensional, self-report Quality of Life (QoL) instrument designed for use with prostate cancer patients. It consists of 27 core items. The Functional Assessment of Cancer Therapy - General (FACT-G) questionnaire, which assesses patient function in 4 domains: Physical, Social/Family, Emotional, and Functional well-being. This is further supplemented by the Prostate Cancer Subscale (PCS), 12 disease-specific items to assess for prostate-related symptoms. Each item is rated from 0 (Not at all) to 4 (Very much) and combined to produce subscale scores for each domain, a Trial Outcome Index which is based on the Physical and Functional well-being scales and the PCS as well as a total score which ranges from 0 to 156. Higher scores represent better QoL. Baseline evaluations or events were defined as those that occur before or on the date and time of the first dose of study treatment.

    Time frame: At baseline and 4 weeks after first dose.

  26. Change From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohorts B and C

    The European Quality of Life 5D-3L Scale (EQ-5D-3L) assesses general health-related quality of life. Health is defined in 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 3 levels: no problems, some problems, and extreme problems. Responses are: '1' = no problem, and '3' = the most serious problem. The responses are combined in a 5-digit number. These health states are converted to a single index value using the crosswalk method to the EQ-5D-3L value set from the United Kingdom (UK). The EQ-5D-3L health utility index based on the UK population weights range from -0.594 to 1.0 with higher scores indicating higher health utility. Baseline evaluations or events are defined as occurring before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

    Time frame: At baseline and at Week 4 of Cycle 2.

  27. Change From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohort D

    The European Quality of Life 5D-3L Scale (EQ-5D-3L) assesses general health-related quality of life. Health is defined in 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 3 levels: no problems, some problems, and extreme problems. Responses are: '1' = no problem, and '3' = the most serious problem. The responses are combined in a 5-digit number. These health states are converted to a single index value using the crosswalk method to the EQ-5D-3L value set from the United Kingdom (UK). The EQ-5D-3L health utility index based on the UK population weights range from -0.594 to 1.0 with higher scores indicating higher health utility. Baseline evaluations or events are defined as occurring before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

    Time frame: At baseline and 4 weeks after first dose.

07

Results

Posted Apr 24, 2023

Participant flow

Cohort A: Asymptomatic or minimally symptomatic, not previously received second generation hormone therapies or cytotoxic chemotherapy. Cohort B: Asymptomatic or minimally symptomatic, progressed after second generation hormone therapies and had not been treated with cytotoxic chemotherapy. Cohort C: Progressed after prior taxane-based cytotoxic chemotherapy. Cohort D: Progressed after prior docetaxel-containing therapy.

Pre-Treatment Period
Participant flow — Pre-Treatment Period
MilestoneCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Started2454573743874
Completed2454573733872
Not completed0000102
Withdrew: Participant no longer meets study criteria0000100
Withdrew: Participant withdrew consent0000001
Withdrew: Adverse event unrelated to study drug0000001
Treatment Period
Participant flow — Treatment Period
MilestoneCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Started2454573733872
Eligible participants who progressed and received nivolumab 3 mg/kg + ipilimumab 1 mg/kg000001327
Completed000531925
Not completed2454568701947
Withdrew: Death0000100
Withdrew: Participant withdrew consent0001301
Withdrew: Lost to follow-up0000100
Withdrew: Other reasons0013501
Withdrew: Not reported0225000
Withdrew: Maximum clinical benefit0011002
Withdrew: Adverse event unrelated to study drug1412827
Withdrew: Study drug toxicity12320122035
Withdrew: Disease progression0162040291128
Withdrew: Participant request to discontinue study treatment0004223
Withdrew: Poor/non-compliance0000110

Outcome measures

PrimaryObjective Response Rate (ORR) Cohorts B and C Per BICR

Objective response rate (ORR) is defined as the percent of participants who had confirmed complete or partial best overall response (BOR) per retrospective Blinded Independent Central Review (BICR) among treated participants with measurable disease at baseline. For participants without documented progression by RECIST v1.1 or subsequent therapy, all available response assessments contributed to the BOR assessment. Partial Response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete Response is disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Tumor assessments were performed every 8 weeks (± 7 days) for 6 months since treatment initiation and thereafter every 12 weeks (± 7 days). Confidence-interval based on Clopper Pearson method.

Time frame:
From first dose to the date of objectively documented progression or the date of subsequent systemic anti-cancer therapy, whichever occurred first (assessed up to approximately 61 months)
Reported as:
Number · Percent of Participants
Objective Response Rate (ORR) Cohorts B and C Per BICR
Percent of ParticipantsCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Objective Response Rate (ORR) Cohorts B and C Per BICR12.5 (3.5 to 29.0)20.0 (7.7 to 38.6)
PrimaryObjective Response Rate (ORR) Cohort D

In Cohort D, ORR is defined as the percentage of participants who had confirmed complete or partial BOR by BICR among randomized subjects with measurable disease at baseline as entered in Interactive Response Technologies web-based system (IWRS). For participants without documented progression or subsequent therapy, all available response assessments will contribute to the BOR assessment. Partial Response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete Response is disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Tumor assessments were performed every 8 weeks (± 7 days) for 6 months since treatment initiation and thereafter every 12 weeks (± 7 days). Confidence-interval based on Clopper Pearson method.

Time frame:
From randomization to the date of objectively documented progression or the date of subsequent systemic anti-cancer therapy, whichever occurred first (assessed up to approximately 61 months)
Reported as:
Number · Percent of Participants
Objective Response Rate (ORR) Cohort D
Percent of ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Objective Response Rate (ORR) Cohort D8.9 (2.5 to 21.2)15.2 (6.3 to 28.9)4.3 (0.1 to 21.9)11.1 (3.7 to 24.1)
PrimaryRadiographic Progression Free Survival (rPFS) for Cohorts B and C Per BICR

Radiographic progression-free survival (rPFS) is defined as the time between the date of first treatment and the first date of documented radiographic progression or death due to any cause, whichever occurs first. The following progressive diseases were collected, documented and assessed as below: Radiographic progression per retrospective Blinded Independent Central Review (BICR) assessment 1. Bone disease progression by Prostate Cancer Working Group (PCWG2) 2. Non-bone soft tissue disease progression by RECIST v1.1 Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

Time frame:
From first dose to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 61 months)
Reported as:
Median · Months
Radiographic Progression Free Survival (rPFS) for Cohorts B and C Per BICR
MonthsCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Radiographic Progression Free Survival (rPFS) for Cohorts B and C Per BICR7.59 (3.65 to 10.22)5.36 (2.92 to 7.66)
PrimaryRadiographic Progression-Free Survival (rPFS) for Cohort D

Radiographic progression-free survival (rPFS) is defined as the time between the date of randomization and the first date of documented progression per BICR or death due to any cause, whichever occurs first. The following progressive diseases were collected, documented and assessed as below: Radiographic progression per BICR assessment 1. Bone disease progression by (Prostate Cancer Working Group) PCWG2 2. Non-bone soft tissue disease progression by RECIST v1.1 Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

Time frame:
From randomization and the first date of documented progression or death due to any cause, whichever occurs first (assessed up to approximately 61 months)
Reported as:
Median · Months
Radiographic Progression-Free Survival (rPFS) for Cohort D
MonthsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Radiographic Progression-Free Survival (rPFS) for Cohort D3.94 (2.17 to 7.62)4.17 (3.32 to 5.59)3.48 (2.14 to 5.78)7.92 (5.55 to 9.33)
SecondaryRadiographic/Clinical Progression Free Survival (rcPFS) for Cohorts B and C

Radiographic/clinical progression-free survival (rcPFS) is the time between first dose and first documented progression or death due to any cause, whichever occurred first. Radiographic progression per Investigator assessment: 1. Bone disease progression by Prostate Cancer Working Group (PCWG2) 2. Non-bone soft tissue disease progression by RECIST v1.1 Clinical progression per investigator assessment: 1. Need for palliative radiation therapy involving more than one site, OR 2. Surgery of kyphoplasty to any neoplastic lesion, OR 3. Cancer-associated clinical deterioration determined by treating physician. Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

Time frame:
From first dose to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 61 months)
Reported as:
Median · Months
Radiographic/Clinical Progression Free Survival (rcPFS) for Cohorts B and C
MonthsCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Radiographic/Clinical Progression Free Survival (rcPFS) for Cohorts B and C4.34 (2.79 to 5.49)3.71 (2.10 to 4.04)
SecondaryRadiographic/Clinical Progression Free Survival (rcPFS) for Cohort D

Radiographic/clinical progression-free survival (rcPFS) is the time between first dose and first documented progression or death due to any cause, whichever occurred first. Radiographic progression per Investigator assessment: 1. Bone disease progression by Prostate Cancer Working Group (PCWG2) 2. Non-bone soft tissue disease progression by RECIST v1.1 Clinical progression per investigator assessment: 1. Need for palliative radiation therapy involving more than one site, OR 2. Surgery of kyphoplasty to any neoplastic lesion, OR 3. Cancer-associated clinical deterioration determined by treating physician. Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

Time frame:
From randomization and the first date of documented progression or death due to any cause, whichever occurs first (assessed up to approximately 93 months)
Reported as:
Median · Months
Radiographic/Clinical Progression Free Survival (rcPFS) for Cohort D
MonthsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Radiographic/Clinical Progression Free Survival (rcPFS) for Cohort D2.53 (2.10 to 3.22)3.78 (2.23 to 4.63)2.66 (2.04 to 3.71)5.85 (3.84 to 7.52)
SecondaryOverall Survival (OS) Cohorts B and C

Overall survival (OS) is defined as the time from first treatment to the date of death from any cause. For participants who were alive, their survival time was censored at the last known alive date. Overall survival was censored for participants at the date of first treatment if they had no follow-up. Based on Kaplan-Meier estimates.

Time frame:
From first dose to the date of death due to any cause (assessed up to approximately 61 months)
Reported as:
Median · Months
Overall Survival (OS) Cohorts B and C
MonthsCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Overall Survival (OS) Cohorts B and C19.75 (13.90 to 23.56)15.21 (8.44 to 17.77)
SecondaryOverall Survival (OS) Cohort D

Overall survival (OS) is defined as the time from randomization to the date of death from any cause. For participants who were alive, their survival time was censored at the last known alive date. Overall survival was censored for participants at the date of first treatment if they had no follow-up. Based on Kaplan-Meier estimates.

Time frame:
From randomization to the date of death due to any cause (assessed up to approximately 93 months)
Reported as:
Median · Months
Overall Survival (OS) Cohort D
MonthsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Overall Survival (OS) Cohort D15.9 (13.14 to 19.29)14.46 (10.64 to 17.51)18.46 (10.28 to 25.69)15.15 (11.56 to 18.56)
SecondaryProstate-Specific Antigen Response Rate (PSA-RR) Cohorts B and C

The percent of participants with a 50% or greater decrease in prostate-specific antigen (PSA) from baseline to the lowest post-baseline PSA result. BBaseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations. Confidence-interval based on Clopper Pearson method.

Time frame:
From baseline to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 61 months)
Reported as:
Number · Percent of Participants
Prostate-Specific Antigen Response Rate (PSA-RR) Cohorts B and C
Percent of ParticipantsCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Prostate-Specific Antigen Response Rate (PSA-RR) Cohorts B and C17.6 (6.8 to 34.5)10.0 (2.8 to 23.7)
SecondaryProstate-Specific Antigen Response Rate (PSA-RR) Cohort D

The percent of participants with a 50% or greater decrease in prostate-specific antigen (PSA) from baseline to the lowest post-baseline PSA result. Baseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations. Confidence-interval based on Clopper Pearson method.

Time frame:
From baseline to the date of objectively documented progression or death due to any cause, whichever occurred first (assessed up to approximately 93 months)
Reported as:
Number · Percent of Participants
Prostate-Specific Antigen Response Rate (PSA-RR) Cohort D
Percent of ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
Prostate-Specific Antigen Response Rate (PSA-RR) Cohort D13.6 (6.4 to 24.3)18.2 (9.8 to 29.6)5.4 (0.7 to 18.2)23.9 (14.6 to 35.5)30.8 (9.1 to 61.4)17.4 (5.0 to 38.8)
SecondaryThe Number of Participants Experiencing Adverse Events (AEs) in Cohorts A, B and C

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation in a participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Adverse Events (AEs) in Cohorts A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
The Number of Participants Experiencing Adverse Events (AEs) in Cohorts A, B and C24545
SecondaryThe Number of Participants Experiencing Adverse Events (AEs) in Cohort D

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation in a participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Adverse Events (AEs) in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
The Number of Participants Experiencing Adverse Events (AEs) in Cohort D697137691127
SecondaryThe Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohorts A, B and C

A Serious Adverse Event (SAE) is defined as any untoward medical occurrence that at any dose results in death, is life-threatening, requires inpatient hospitalization or causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohorts A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
The Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohorts A, B and C11733
SecondaryThe Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohort D

A Serious Adverse Event (SAE) is defined as any untoward medical occurrence that at any dose results in death, is life-threatening, requires inpatient hospitalization or causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
The Number of Participants Experiencing Serious Adverse Events (SAEs) in Cohort D38441532718
SecondaryThe Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohorts A, B and C

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohorts A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
The Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohorts A, B and C11718
SecondaryThe Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohort D

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a preexisting medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
The Number of Participants Experiencing Adverse Events (AEs) Leading to Discontinuation in Cohort D162771336
SecondaryThe Number of Participants Experiencing Immune Mediated Adverse Events in Cohorts A, B and C

Immune-mediated adverse events (IMAEs) are AEs consistent with an immune-mediated mechanism or immune-mediated component for which non-inflammatory etiologies (eg, infection or tumor progression) have been ruled out. IMAEs can include events with an alternate etiology which were exacerbated by the induction of autoimmunity.

Time frame:
From first dose to 100 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 20.7 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Immune Mediated Adverse Events in Cohorts A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Pneumonitis132
Diarrhea/Colitis01517
Hepatitis041
Adrenal Insufficiency012
Hypothyroidism/Thyroiditis021
Diabetes Mellitus000
Nephritis and Renal Dysfunction010
Rash0166
Hypersensitivity000
Hyperthyroidism011
Hypophysitis031
SecondaryThe Number of Participants Experiencing Immune Mediated Adverse Events in Cohort D

Immune-mediated adverse events (IMAEs) are AEs consistent with an immune-mediated mechanism or immune-mediated component for which non-inflammatory etiologies (eg, infection or tumor progression) have been ruled out. IMAEs can include events with an alternate etiology which were exacerbated by the induction of autoimmunity.

Time frame:
From first dose to 100 days after last dose of study therapy (an average of 8.48 months assessed up to approximately 29.09 months)
Reported as:
Count of participants · Participants
The Number of Participants Experiencing Immune Mediated Adverse Events in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
Pneumonitis140012
Diarrhea/Colitis9215002
Hepatitis580002
Adrenal Insufficiency231021
Hypothyroidism/Thyroiditis691033
Diabetes Mellitus110001
Nephritis and Renal Dysfunction000000
Rash12102014
Hypersensitivity000000
Hyperthyroidism450012
Hypophysitis253011
SecondaryThe Number of Participants Who Died in Cohorts A, B and C

Death due to any cause.

Time frame:
From first dose to 100 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 20.7 months).
Reported as:
Count of participants · Participants
The Number of Participants Who Died in Cohorts A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
The Number of Participants Who Died in Cohorts A, B and C23939
SecondaryThe Number of Participants Who Died in Cohort D

Death due to any cause.

Time frame:
From first dose to 100 days after last dose of study therapy (an average of 8.48 months assessed up to approximately 29.09 months)
Reported as:
Count of participants · Participants
The Number of Participants Who Died in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
The Number of Participants Who Died in Cohort D141541329
SecondaryThe Number of Participants With Changes in Laboratory Values From Baseline in Cohorts A, B and C

The number of participants with a change in laboratory values from baseline Grade in Cohorts A, B and C.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)
Reported as:
Number · Participants
The Number of Participants With Changes in Laboratory Values From Baseline in Cohorts A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Hemoglobin0623
Platelet Count038
Leukocytes017
Lymphocytes (Absolute)0917
Absolute Neutrophil Count006
Alkaline Phosphatase0715
Aspartate Aminotransferase0917
Alanine Aminotransferase1514
Bilirubin, Total030
Creatinine058
Amylase, Total086
Lipase, Total063
Hypernatremia010
Hyponatremia0815
Hyperkalemia015
Hypokalemia037
Hypercalcemia000
Hypocalcemia0412
Hyperglycemia—02
Hypoglycemia—00
SecondaryThe Number of Participants With Changes in Laboratory Values From Baseline in Cohort D

The number of participants with an change in laboratory values from baseline Grade in Cohort D.

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)
Reported as:
Number · Participants
The Number of Participants With Changes in Laboratory Values From Baseline in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Hemoglobin26351442
Platelet Count108215
Leukocytes89325
Lymphocytes (Absolute)2831937
Absolute Neutrophil Count77218
Alkaline Phosphatase23181214
Aspartate Aminotransferase1721511
Alanine Aminotransferase212436
Bilirubin, Total3103
Creatinine2015214
Amylase, Total131613
Lipase, Total171678
Hypernatremia4413
Hyponatremia2112712
Hyperkalemia71217
Hypokalemia5858
Hypercalcemia2721
Hypocalcemia12231418
Hyperglycemia1935
Hypoglycemia0001
SecondaryThe Number of Participants With Liver Function Laboratory Abnormalities in Cohorts A, B and C

The number of participants with laboratory abnormalities in specific liver tests based on SI conventional units. ALT = Alanine Aminotransferase AST = Aspartate Aminotransferase ULN = Upper Limit of Normal

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)
Reported as:
Count of participants · Participants
The Number of Participants With Liver Function Laboratory Abnormalities in Cohorts A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
ALT OR AST > 3XULN025
ALT OR AST> 5XULN022
ALT OR AST> 10XULN021
ALT OR AST > 20XULN021
TOTAL BILIRUBIN > 2XULN020
SecondaryThe Number of Participants With Liver Function Laboratory Abnormalities in Cohort D

The number of participants with laboratory abnormalities in specific liver tests based on SI conventional units. ALT = Alanine Aminotransferase AST = Aspartate Aminotransferase ULN = Upper Limit of Normal

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)
Reported as:
Count of participants · Participants
The Number of Participants With Liver Function Laboratory Abnormalities in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
ALT OR AST > 3XULN6801
ALT OR AST> 5XULN3500
ALT OR AST> 10XULN1300
ALT OR AST > 20XULN0100
TOTAL BILIRUBIN > 2XULN2000
ALP>1.5XULN23241517
CONCURR ALT/ AST ELEV>3XULN WITH TOT BILI>1.5XULN WITHIN 1 DAY1000
CONCURR ALT/ AST ELEV>3XULN WITH TOT BILI>1.5XULN WITHIN 30 DAYS1000
CONCURR ALT/ AST ELEV>3XULN WITH TOT BILI>2XULN WITHIN 1 DAY1000
CONCURR ALT/ AST ELEV>3XULN WITH TOT BILI>2XULN WITHIN 30 DAYS1000
SecondaryThe Number of Participants With Thyroid Function Laboratory Abnormalities in Cohort A, B and C

The number of participants with laboratory abnormalities in specific thyroid tests based on SI conventional units. TSH = Thyroid Stimulating Hormone LLN = Lower Limit of Normal ULN = Upper Limit of Normal

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 2.8 months assessed up to approximately 18.2 months)
Reported as:
Count of participants · Participants
The Number of Participants With Thyroid Function Laboratory Abnormalities in Cohort A, B and C
ParticipantsCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
TSH > ULN0513
TSH > ULN WITH TSH <= ULN AT BASELINE037
TSH >ULN WITH ATLEAST ONE FT3/FT4 TEST VALUE <LLN046
TSH >ULN WITH ALL OTHER FT3/FT4 TEST VALUES >= LLN014
TSH > ULN WITH FT3/FT4 TEST MISSING003
TSH < LLN0710
TSH <LLN WITH TSH >= LLN AT BASELINE0610
TSH <LLN WITH ATLEAST ONE FT3/FT4 TEST VALUE > ULN048
TSH <LLN WITH ALL OTHER FT3/FT4 TEST VALUES <= ULN021
TSH < LLN WITH FT3/FT4 TEST MISSING011
SecondaryThe Number of Participants With Thyroid Function Laboratory Abnormalities in Cohort D

The number of participants with laboratory abnormalities in specific thyroid tests based on SI conventional units. TSH = Thyroid Stimulating Hormone LLN = Lower Limit of Normal ULN = Upper Limit of Normal

Time frame:
From first dose to 30 days after last dose of study therapy (an average of 6.19 months assessed up to approximately 26.8 months)
Reported as:
Count of participants · Participants
The Number of Participants With Thyroid Function Laboratory Abnormalities in Cohort D
ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
TSH > ULN1320111
TSH > ULN WITH TSH <= ULN AT BASELINE101616
TSH >ULN WITH ATLEAST ONE FT3/FT4 TEST VALUE <LLN61203
TSH >ULN WITH ALL OTHER FT3/FT4 TEST VALUES >= LLN6715
TSH > ULN WITH FT3/FT4 TEST MISSING1103
TSH < LLN222276
TSH <LLN WITH TSH >= LLN AT BASELINE222065
TSH <LLN WITH ATLEAST ONE FT3/FT4 TEST VALUE > ULN9913
TSH <LLN WITH ALL OTHER FT3/FT4 TEST VALUES <= ULN131153
TSH < LLN WITH FT3/FT4 TEST MISSING0210
SecondaryChanges in Pain Severity as Measured by the Brief Pain Inventory-Short Form (BPI-SF) Scores Cohorts B and C

Change between Mean BPI-SF scores at baseline and week 4 (cycle 2). The BPI-SF measures pain severity through the use of a numerical rating scale. Participants rate the severity of their pain at its ''worst,'' ''least,'' and ''average'' in the last 24 hours using an 11-point numerical rating scale with anchors of ''0 = no pain'' and ''10 = pain as bad as you can imagine.'' A higher score = a "worse" outcome. Pain Severity Score = Mean of items 3-6 (pain at its worst, pain at its least). Baseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

Time frame:
At baseline and Week 4 (Cycle 2)
Reported as:
Mean · Score on a scale
Changes in Pain Severity as Measured by the Brief Pain Inventory-Short Form (BPI-SF) Scores Cohorts B and C
Score on a scaleCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Worst pain in the last 24 hours Week 4 (Cycle 2)0.0 (-4 to 5)-0.1 (-5 to 6)
Least pain in the last 24 hours Week 4 (Cycle 2)-0.5 (-3 to 1)-0.1 (-3 to 3)
Average pain in the last 24 hours Week 4 (Cycle 2)-0.2 (-3 to 2)-0.1 (-4 to 2)
Current pain Week 4 (Cycle 2)-0.1 (-3 to 2)0 (-5 to 4)
SecondaryChanges in Pain Severity as Measured by the Brief Pain Inventory-Short Form (BPI-SF) Scores Cohort D

Change between Mean BPI-SF scores at baseline and week 4 (cycle 2). The BPI-SF measures pain severity through the use of a numerical rating scale. Participants rate the severity of their pain at its ''worst,'' ''least,'' and ''average'' in the last 24 hours using an 11-point numerical rating scale with anchors of ''0 = no pain'' and ''10 = pain as bad as you can imagine.'' A higher score = a "worse" outcome. Pain Severity Score = Mean of items 3-6 (pain at its worst, pain at its least). Baseline evaluations or events are defined as evaluations or events that occur before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

Time frame:
At baseline and 4 weeks after first dose.
Reported as:
Mean · Score on a scale
Changes in Pain Severity as Measured by the Brief Pain Inventory-Short Form (BPI-SF) Scores Cohort D
Score on a scaleCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Worst pain in the last 24 hours Week 4-0.3 (-7 to 8)0.5 (-5 to 7)-0.1 (-8 to 6)-0.5 (-7 to 5)
Least pain in the last 24 hours Week 4-0.3 (-7 to 8)0.2 (-4 to 4)0.2 (-4 to 5)-0.3 (-5 to 3)
Average pain in the last 24 hours Week 4-0.5 (-6 to 6)0.2 (-5 to 6)-0.3 (-5 to 5)-0.4 (-5 to 3)
Current pain Week 4-0.2 (-6 to 6)0.3 (-4 to 4)-0.4 (-6 to 6)-0.3 (-6 to 5)
SecondaryChange in Cancer-Related Symptoms and Quality of Life (QoL) by Functional Assessment of Cancer Therapy - Prostate (FACT-P) Questionnaire Cohort D

The Functional Assessment of Cancer Therapy - Prostate (FACT-P) is a multidimensional, self-report Quality of Life (QoL) instrument designed for use with prostate cancer patients. It consists of 27 core items. The Functional Assessment of Cancer Therapy - General (FACT-G) questionnaire, which assesses patient function in 4 domains: Physical, Social/Family, Emotional, and Functional well-being. This is further supplemented by the Prostate Cancer Subscale (PCS), 12 disease-specific items to assess for prostate-related symptoms. Each item is rated from 0 (Not at all) to 4 (Very much) and combined to produce subscale scores for each domain, a Trial Outcome Index which is based on the Physical and Functional well-being scales and the PCS as well as a total score which ranges from 0 to 156. Higher scores represent better QoL. Baseline evaluations or events were defined as those that occur before or on the date and time of the first dose of study treatment.

Time frame:
At baseline and 4 weeks after first dose.
Reported as:
Mean · Score on a scale
Change in Cancer-Related Symptoms and Quality of Life (QoL) by Functional Assessment of Cancer Therapy - Prostate (FACT-P) Questionnaire Cohort D
Score on a scaleCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Change in Cancer-Related Symptoms and Quality of Life (QoL) by Functional Assessment of Cancer Therapy - Prostate (FACT-P) Questionnaire Cohort D6.73 (-60.2 to 116.4)-4.74 (-81.0 to 72.7)-3.64 (-91.5 to 65)-0.28 (-71.7 to 53.0)
SecondaryChange From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohorts B and C

The European Quality of Life 5D-3L Scale (EQ-5D-3L) assesses general health-related quality of life. Health is defined in 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 3 levels: no problems, some problems, and extreme problems. Responses are: '1' = no problem, and '3' = the most serious problem. The responses are combined in a 5-digit number. These health states are converted to a single index value using the crosswalk method to the EQ-5D-3L value set from the United Kingdom (UK). The EQ-5D-3L health utility index based on the UK population weights range from -0.594 to 1.0 with higher scores indicating higher health utility. Baseline evaluations or events are defined as occurring before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

Time frame:
At baseline and at Week 4 of Cycle 2.
Reported as:
Mean · Score on a scale
Change From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohorts B and C
Score on a scaleCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg
Change From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohorts B and C0.0083 (-0.311 to 0.275)-0.0074 (-0.327 to 0.628)
SecondaryChange From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohort D

The European Quality of Life 5D-3L Scale (EQ-5D-3L) assesses general health-related quality of life. Health is defined in 5 dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 3 levels: no problems, some problems, and extreme problems. Responses are: '1' = no problem, and '3' = the most serious problem. The responses are combined in a 5-digit number. These health states are converted to a single index value using the crosswalk method to the EQ-5D-3L value set from the United Kingdom (UK). The EQ-5D-3L health utility index based on the UK population weights range from -0.594 to 1.0 with higher scores indicating higher health utility. Baseline evaluations or events are defined as occurring before the date and time of the first dose of study treatment. Evaluations on the same date and time of the first dose of study treatment were considered as baseline evaluations.

Time frame:
At baseline and 4 weeks after first dose.
Reported as:
Mean · Score on a scale
Change From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohort D
Score on a scaleCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Change From Baseline in Health Status and Health Utility by 3-level EuroQol Five Dimensions (EQ-5D-3L) Questionnaire Cohort D0.0032 (-0.736 to 0.791)-0.0328 (-0.574 to 0.532)0.0113 (-0.532 to 0.463)0.0219 (-0.514 to 0.697)
Post-hocObjective Response Rate (ORR) Cohort D

In Cohort D, ORR is defined as the percentage of participants who had confirmed complete or partial BOR by BICR among randomized subjects with measurable disease at baseline as entered in Interactive Response Technologies web-based system (IWRS). For participants without documented progression or subsequent therapy, all available response assessments will contribute to the BOR assessment. Partial Response is at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. Complete Response is disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \<10 mm. Tumor assessments were performed every 8 weeks (± 7 days) for 6 months since treatment initiation and thereafter every 12 weeks (± 7 days). Confidence-interval based on Clopper Pearson method.

Time frame:
From randomization to the date of objectively documented progression or the date of subsequent systemic anti-cancer therapy, whichever occurred first (assessed up to approximately 93 months)
Reported as:
Number · Percent of Participants
Objective Response Rate (ORR) Cohort D
Percent of ParticipantsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Objective Response Rate (ORR) Cohort D13.3 (5.1 to 26.8)17.4 (7.8 to 31.4)8.7 (1.1 to 28.0)8.9 (2.5 to 21.2)
Post-hocRadiographic Progression-Free Survival (rPFS) for Cohort D

Radiographic progression-free survival (rPFS) is defined as the time between the date of randomization and the first date of documented progression per BICR or death due to any cause, whichever occurs first. The following progressive diseases were collected, documented and assessed as below: Radiographic progression per BICR assessment 1. Bone disease progression by (Prostate Cancer Working Group) PCWG2 2. Non-bone soft tissue disease progression by RECIST v1.1 Progressive disease is at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm (the appearance of one or more new lesions is also considered progression). Based on Kaplan-Meier estimates.

Time frame:
From randomization and the first date of documented progression or death due to any cause, whichever occurs first (assessed up to approximately 93 months)
Reported as:
Median · Months
Radiographic Progression-Free Survival (rPFS) for Cohort D
MonthsCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg
Radiographic Progression-Free Survival (rPFS) for Cohort D3.70 (2.37 to 5.36)3.81 (2.23 to 4.63)3.09 (2.04 to 4.37)6.34 (5.22 to 8.31)

Adverse events

Collected over Participants will be assessed for All-Cause Mortality (ACM) from the date of their first dose of study therapy until study completion for Cohorts A, B and C and from randomization until study completion for Cohort D (assessed up to approximately 93 months). SAEs and Other AEs were assessed from first dose to 100 days after last dose of study therapy for all Cohorts (assessed up to approximately 29.09 months).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg2/2 (100%)2/2 (100%)2/2 (100%)
Cohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg40/45 (88.9%)37/45 (82.2%)44/45 (97.8%)
Cohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg41/45 (91.1%)39/45 (86.7%)45/45 (100%)
Cohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3W67/73 (91.8%)44/73 (60.3%)66/73 (90.4%)
Cohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6W65/74 (87.8%)50/73 (68.5%)64/73 (87.7%)
Cohort D Arm 3: Ipilimumab 3 mg/kg28/38 (73.7%)25/38 (65.8%)37/38 (97.4%)
Cohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mg49/74 (66.2%)50/72 (69.4%)71/72 (98.6%)
Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D39/13 (69.2%)9/13 (69.2%)10/13 (76.9%)
Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D421/27 (77.8%)20/27 (74.1%)25/27 (92.6%)
Most frequent serious events
Showing 10 of 193
Most frequent serious events
EventCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
Disseminated intravascular coagulationBlood and lymphatic system disorders1/20/450/450/730/730/380/720/130/27
ThyroiditisEndocrine disorders1/21/450/450/730/730/380/720/130/27
Neoplasm malignantNeoplasms benign, malignant and unspecified (incl cysts and polyps)1/20/450/450/730/730/380/720/130/27
Cerebral haemorrhageNervous system disorders1/20/450/450/731/730/380/720/130/27
PneumonitisRespiratory, thoracic and mediastinal disorders1/22/451/451/730/731/382/721/132/27
Malignant neoplasm progressionNeoplasms benign, malignant and unspecified (incl cysts and polyps)0/20/453/4511/738/733/3818/722/136/27
ColitisGastrointestinal disorders0/25/459/453/737/731/382/720/132/27
DiarrhoeaGastrointestinal disorders0/22/457/455/736/732/384/720/132/27
Adrenal insufficiencyEndocrine disorders0/22/451/450/730/732/380/722/130/27
Atrial fibrillationCardiac disorders0/24/451/451/730/730/381/720/130/27
Most frequent other events
Showing 10 of 127
Most frequent other events
EventCohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgNivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D3Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q4W After Crossover From Arm D4
AgitationPsychiatric disorders2/21/451/450/730/730/381/720/131/27
FatigueGeneral disorders1/228/4531/4521/7320/7315/3831/721/135/27
Decreased appetiteMetabolism and nutrition disorders0/215/4529/4517/7314/7315/3820/723/137/27
DiarrhoeaGastrointestinal disorders0/223/4528/4524/7326/7315/3824/724/135/27
AnaemiaBlood and lymphatic system disorders1/213/4514/4510/7315/739/3826/724/136/27
TachycardiaCardiac disorders1/20/453/451/732/732/382/721/131/27
HypothyroidismEndocrine disorders1/26/459/455/739/733/384/722/133/27
Vision blurredEye disorders1/22/455/451/732/731/383/721/130/27
ConstipationGastrointestinal disorders1/217/4515/4513/737/7311/3820/721/134/27
PyrexiaGeneral disorders1/29/4514/457/736/736/388/721/134/27

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Cohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgTotal
<=18 years00000000
Between 18 and 65 years1152125231623124
>=65 years1302448512251227
Sex: Female, Male
Sex: Female, Male(Participants)Cohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgTotal
Female00000000
Male2454573743874351
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Cohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgTotal
Hispanic or Latino00010113
Not Hispanic or Latino2404053562851270
Unknown or Not Reported055191892278
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Cohort A: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort B: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort C: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kgCohort D Arm 1: Nivolumab 3 mg/kg + Ipilimumab 1 mg/kg Q3WCohort D Arm 2: Nivolumab 1 mg/kg + Ipilimumab 3 mg/kg Q6WCohort D Arm 3: Ipilimumab 3 mg/kgCohort D Arm 4: Cabazitaxel 20 mg/m2 or 25 mg/m2 + Prednisone 10 mgTotal
White2333770723267313
Black or African American063225624
Other055101113
Asian01000001
08

Study locations

59 sites
  • Local Institution - 0074
    Tucson, Arizona 85711, United States
  • Local Institution - 0046
    Marietta, Georgia 30060, United States
  • Local Institution - 0011
    Chicago, Illinois 60637, United States
  • Local Institution - 0076
    Minneapolis, Minnesota 55404, United States
  • Local Institution - 0008
    St Louis, Missouri 63110, United States
  • Local Institution - 0075
    Las Vegas, Nevada 89169, United States
  • Local Institution - 0078
    Albany, New York 12208, United States
  • Local Institution - 0065
    Lake Success, New York 11042, United States
  • Local Institution - 0001
    New York, New York 10029, United States
  • Local Institution - 0077
    Tigard, Oregon 97223, United States
  • Local Institution - 0047
    Allentown, Pennsylvania 18105, United States
  • Local Institution - 0010
    Philadelphia, Pennsylvania 19104, United States
  • Local Institution - 0067
    Charleston, South Carolina 29425, United States
  • Local Institution - 0079
    Austin, Texas 78731, United States
  • Local Institution - 0002
    Houston, Texas 77030, United States
  • Local Institution - 0027
    Gosford, New South Wales 2250, Australia
  • Local Institution - 0059
    Wahroonga, New South Wales 2076, Australia
  • Local Institution - 0029
    Westmead, New South Wales 2145, Australia
  • Local Institution - 0028
    Southport, Queensland 4215, Australia
  • Local Institution - 0043
    Woolloongabba, Queensland 4012, Australia
  • Local Institution - 0030
    Elizabeth Vale, South Australia 5112, Australia
  • Local Institution - 0031
    Clayton, Victoria 3168, Australia
  • Local Institution - 0048
    Vienna, 1090, Austria
  • Local Institution - 0044
    Montreal, Quebec H2X 0A9, Canada
  • Local Institution - 0063
    Aarhus N, Central Jutland 8200, Denmark
  • Local Institution - 0062
    Aalborg, 9000, Denmark
  • Local Institution - 0061
    København Ø, 2100, Denmark
  • Local Institution - 0060
    Odense, 5000, Denmark
  • Local Institution - 0009
    Clermont-Ferrand, 63000, France
  • Local Institution - 0005
    Lyon, 69008, France
  • Local Institution - 0004
    Marseille, 13273, France
  • Local Institution - 0003
    Villejuif, 94805, France
  • Local Institution - 0038
    Göttingen, Lower Saxony 37075, Germany
  • Local Institution - 0041
    Braunschweig, 38114, Germany
  • Local Institution - 0032
    Dresden, 01307, Germany
  • Local Institution - 0019
    Herne, 44625, Germany
  • Local Institution - 0017
    Jena, 07747, Germany
  • Local Institution - 0034
    Munich, 81377, Germany
  • Local Institution - 0018
    Münster, 48149, Germany
  • Local Institution - 0037
    Nuremberg, 90419, Germany
  • Local Institution - 0042
    Nürtingen, 72622, Germany
  • Local Institution - 0036
    Rostock, 18107, Germany
  • Local Institution - 0033
    Tübingen, 72076, Germany
  • Local Institution - 0035
    Wesel, 46483, Germany
  • Local Institution - 0071
    Arezzo, 52100, Italy
  • Local Institution - 0052
    Milan, 20133, Italy
  • Local Institution - 0053
    Naples, 80131, Italy
  • Local Institution - 0072
    Parma, 43100, Italy
  • Local Institution - 0051
    Terni, 05100, Italy
  • Local Institution - 0055
    Krakow, Lesser Poland Voivodeship 30-688, Poland
  • Local Institution - 0066
    Koszalin, 75-581, Poland
  • Local Institution - 0054
    Warsaw, 02-781, Poland
  • Local Institution - 0022
    Madrid, Sede Madrid 28027, Spain
  • Local Institution - 0026
    Badajoz, 06006, Spain
  • Local Institution - 0025
    Barcelona, 08003, Spain
  • Local Institution - 0020
    Madrid, 28007, Spain
  • Local Institution - 0021
    Madrid, 28041, Spain
  • Local Institution - 0024
    Málaga, 29010, Spain
  • Local Institution - 0023
    Santiago Compostela, 15706, Spain
09

References and documents

Publications

  • Sharma P, Pachynski RK, Narayan V, Flechon A, Gravis G, Galsky MD, Mahammedi H, Patnaik A, Subudhi SK, Ciprotti M, Simsek B, Saci A, Hu Y, Han GC, Fizazi K. Nivolumab Plus Ipilimumab for Metastatic Castration-Resistant Prostate Cancer: Preliminary Analysis of Patients in the CheckMate 650 Trial. Cancer Cell. 2020 Oct 12;38(4):489-499.e3. doi: 10.1016/j.ccell.2020.08.007. Epub 2020 Sep 10. PubMed 32916128 ↗

Study documents

  • Protocol and statistical analysis plan · Dec 1, 2021

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 22, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02985957
Lead sponsor
Bristol-Myers Squibb
Responsible party
Sponsor
First posted
Dec 7, 2016
Start date
Mar 26, 2017
Primary completion
Apr 5, 2022
Completion
Jan 7, 2025
Results posted
Apr 24, 2023
Last update
Dec 22, 2025

Study contacts

Bristol-Myers Squibb
study director · Bristol-Myers Squibb

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion