Skip to content
← Malignant Prostate Neoplasm

NCT01946204 · STUDY IN CONTEXT

A Study of Apalutamide (ARN-509) in Men With Non-Metastatic Castration-Resistant Prostate Cancer

Draft scope assessment: narrower. Linked by condition-string match at the cancer-entity level. The study's eligibility - stage, biomarker, treatment line and prior therapy - has not been reconciled against this page's definition, so its population is narrower than this page in ways not yet recorded. The condition was transformed or resolved through the terminology hierarchy to reach this cancer type, so the link itself is a candidate a reviewer must confirm. Found because this study's registry identifier is printed in an FDA approval notice, an FDA product label or an NCI summary held by this site. The citing document and the exact position of the identifier inside it are recorded. Being cited is not a statement that the study supports this treatment.

Read the full study record and all posted results →

Linked outcomes

Measures are not ranked. Open each original source section for treatment groups, denominators, units and results.

primary · POSTED

MFS was defined as the time from randomization to the time of first evidence of BICR-confirmed bone or soft tissue distant metastasis or death due to any cause, whichever occurred first. The MFS data for participants without metastasis or death were performed for US or ex-US regulatory purposes. Radiographic scans (bone scans and computerized tomography \[CT\] or magnetic resonance imaging \[MRI\] of the chest, abdomen, and pelvis) were performed for detection of metastasis throughout the study.

Intent-to-Treat (ITT) population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.

→

secondary · POSTED

Time to metastasis (TTM) was defined as the time from randomization to the time of the scan that showed first evidence of BICR-confirmed radiographically detected bone or soft tissue distant metastasis. The TTM data for participants without metastasis were performed for US or ex-US regulatory purposes. Radiographic scans (bone scans and CT or MRI of the chest, abdomen, and pelvis) were performed for detection of metastasis throughout the study.

ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.

→

secondary · POSTED

PFS defined as time from randomization to first documentation of BICR-confirmed radiographic progressive disease (PD) (development of distant/local/regional metastasis)/death due to any cause whichever occurred first. PFS data for participants without loco-regional disease were performed for US/ex-US regulatory purposes. Radiographic scans (bone scans and CT/MRI of chest,abdomen,pelvis) performed for detection of metastasis throughout study. PD based on RECIST v1.1; Subjects with one measurable lesion, At least 20% increase in sum of diameters of target lesions taking as reference smallest sum on study. In addition, sum must demonstrate an absolute increase of at least 5 millimeter(mm). Also, appearance of one/more new lesions was also considered PD. Subjects with non-measurable disease as per CT/MRI scans, unequivocal progression/appearance of one or more new lesions was considered PD. For new bone lesions detected on bone scans, second imaging (CT/MRI) was required to confirm PD.

ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.

→

secondary · POSTED

Time to symptomatic progression was defined as the time from randomization to documentation in the CRF of any of the following (whichever occurred earlier): a) development of a skeletal-related event (pathologic fracture, spinal cord compression, or need for surgical intervention or radiation therapy to the bone); b) pain progression or worsening of disease-related symptoms requiring initiation of a new systemic anti-cancer therapy; or c) development of clinically significant symptoms due to loco-regional tumor progression requiring surgical intervention or radiation therapy.

ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.

→

secondary · POSTED

Overall survival was defined as the time from randomization to the date of death due to any cause.

ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.

→

secondary · POSTED

Time to initiation of cytotoxic chemotherapy was defined as the time from randomization to the date of initiation of cytotoxic chemotherapy for prostate cancer.

ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.

→

Reported safety

Serious events are not the same as severe events. Compare the original safety groups and their at-risk populations.

Open the study safety table →

Quality of life and patient-reported measures

No linked quality-of-life measure is recorded for this setting and study.

Full draft applicability and source-link record
trial
release id
clinical-indications-draft-1
disease state id
ds-malignant-prostate-neoplasm
nct id
NCT01946204
trial label
A Study of Apalutamide (ARN-509) in Men With Non-Metastatic Castration-Resistant Prostate Cancer
applicability
narrower
applicability note
Linked by condition-string match at the cancer-entity level. The study's eligibility - stage, biomarker, treatment line and prior therapy - has not been reconciled against this page's definition, so its population is narrower than this page in ways not yet recorded. The condition was transformed or resolved through the terminology hierarchy to reach this cancer type, so the link itself is a candidate a reviewer must confirm.
curation status
draft
reviewed by
Source null
reviewed at
Source null
created at
2026-09-10T00:00:00Z
provenance class
regulator-cited
discovery note
Found because this study's registry identifier is printed in an FDA approval notice, an FDA product label or an NCI summary held by this site. The citing document and the exact position of the identifier inside it are recorded. Being cited is not a statement that the study supports this treatment.
outcome Count
6
harms Count
2
qol Count
0
outcomes
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0005
    source section id
    NCT01946204-om-0005
    source outcome index
    5
    endpoint
    Metastasis-Free Survival (MFS) by Blinded Independent Central Review (BICR)
    endpoint definition
    MFS was defined as the time from randomization to the time of first evidence of BICR-confirmed bone or soft tissue distant metastasis or death due to any cause, whichever occurred first. The MFS data for participants without metastasis or death were performed for US or ex-US regulatory purposes. Radiographic scans (bone scans and computerized tomography \[CT\] or magnetic resonance imaging \[MRI\] of the chest, abdomen, and pelvis) were performed for detection of metastasis throughout the study.
    time origin
    Up to approximately 43 Months
    analysis role
    primary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    Intent-to-Treat (ITT) population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  2. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0000
    source section id
    NCT01946204-om-0000
    source outcome index
    0
    endpoint
    Time to Metastasis (TTM)
    endpoint definition
    Time to metastasis (TTM) was defined as the time from randomization to the time of the scan that showed first evidence of BICR-confirmed radiographically detected bone or soft tissue distant metastasis. The TTM data for participants without metastasis were performed for US or ex-US regulatory purposes. Radiographic scans (bone scans and CT or MRI of the chest, abdomen, and pelvis) were performed for detection of metastasis throughout the study.
    time origin
    Up to approximately 43 Months
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  3. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0001
    source section id
    NCT01946204-om-0001
    source outcome index
    1
    endpoint
    Progression-free Survival (PFS)
    endpoint definition
    PFS defined as time from randomization to first documentation of BICR-confirmed radiographic progressive disease (PD) (development of distant/local/regional metastasis)/death due to any cause whichever occurred first. PFS data for participants without loco-regional disease were performed for US/ex-US regulatory purposes. Radiographic scans (bone scans and CT/MRI of chest,abdomen,pelvis) performed for detection of metastasis throughout study. PD based on RECIST v1.1; Subjects with one measurable lesion, At least 20% increase in sum of diameters of target lesions taking as reference smallest sum on study. In addition, sum must demonstrate an absolute increase of at least 5 millimeter(mm). Also, appearance of one/more new lesions was also considered PD. Subjects with non-measurable disease as per CT/MRI scans, unequivocal progression/appearance of one or more new lesions was considered PD. For new bone lesions detected on bone scans, second imaging (CT/MRI) was required to confirm PD.
    time origin
    Up to approximately 43 Months
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  4. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0002
    source section id
    NCT01946204-om-0002
    source outcome index
    2
    endpoint
    Time to Symptomatic Progression
    endpoint definition
    Time to symptomatic progression was defined as the time from randomization to documentation in the CRF of any of the following (whichever occurred earlier): a) development of a skeletal-related event (pathologic fracture, spinal cord compression, or need for surgical intervention or radiation therapy to the bone); b) pain progression or worsening of disease-related symptoms requiring initiation of a new systemic anti-cancer therapy; or c) development of clinically significant symptoms due to loco-regional tumor progression requiring surgical intervention or radiation therapy.
    time origin
    Up to approximately 43 Months
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  5. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0003
    source section id
    NCT01946204-om-0003
    source outcome index
    3
    endpoint
    Overall Survival
    endpoint definition
    Overall survival was defined as the time from randomization to the date of death due to any cause.
    time origin
    Up to approximately 43 months
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  6. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0004
    source section id
    NCT01946204-om-0004
    source outcome index
    4
    endpoint
    Time to Initiation of Cytotoxic Chemotherapy
    endpoint definition
    Time to initiation of cytotoxic chemotherapy was defined as the time from randomization to the date of initiation of cytotoxic chemotherapy for prostate cancer.
    time origin
    Up to approximately 43 months
    analysis role
    secondary
    reporting status
    POSTED
    data cutoff
    Source null
    population note
    ITT population included all participants who were randomized into the study, with study drug assignments designated according to initial randomization, regardless of whether participants received what was assigned.
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
arms
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0000
    arm key
    OG000
    arm label
    Placebo
    regimen
    Participants received apalutamide matched placebo tablets orally on a continuous once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    401
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0000#groups/OG000
  2. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0000
    arm key
    OG001
    arm label
    Apalutamide
    regimen
    Participants received apalutamide orally at a starting dose of 240 milligram (mg) (8 x 30 mg capsules then 4 x 60 mg tablets) in a continuous treatment cycles (each treatment cycle is of 28 days) once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    806
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0000#groups/OG001
  3. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0001
    arm key
    OG000
    arm label
    Placebo
    regimen
    Participants received apalutamide matched placebo tablets orally on a continuous once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    401
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0001#groups/OG000
  4. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0001
    arm key
    OG001
    arm label
    Apalutamide
    regimen
    Participants received apalutamide orally at a starting dose of 240 milligram (mg) (8 x 30 mg capsules then 4 x 60 mg tablets) in a continuous treatment cycles (each treatment cycle is of 28 days) once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    806
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0001#groups/OG001
  5. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0002
    arm key
    OG000
    arm label
    Placebo
    regimen
    Participants received apalutamide matched placebo tablets orally on a continuous once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    401
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0002#groups/OG000
  6. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0002
    arm key
    OG001
    arm label
    Apalutamide
    regimen
    Participants received apalutamide orally at a starting dose of 240 milligram (mg) (8 x 30 mg capsules then 4 x 60 mg tablets) in a continuous treatment cycles (each treatment cycle is of 28 days) once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    806
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0002#groups/OG001
  7. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0003
    arm key
    OG000
    arm label
    Placebo
    regimen
    Participants received apalutamide matched placebo tablets orally on a continuous once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    401
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0003#groups/OG000
  8. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0003
    arm key
    OG001
    arm label
    Apalutamide
    regimen
    Participants received apalutamide orally at a starting dose of 240 milligram (mg) (8 x 30 mg capsules then 4 x 60 mg tablets) in a continuous treatment cycles (each treatment cycle is of 28 days) once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    806
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0003#groups/OG001
  9. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0004
    arm key
    OG000
    arm label
    Placebo
    regimen
    Participants received apalutamide matched placebo tablets orally on a continuous once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    401
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0004#groups/OG000
  10. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0004
    arm key
    OG001
    arm label
    Apalutamide
    regimen
    Participants received apalutamide orally at a starting dose of 240 milligram (mg) (8 x 30 mg capsules then 4 x 60 mg tablets) in a continuous treatment cycles (each treatment cycle is of 28 days) once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    806
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0004#groups/OG001
  11. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0005
    arm key
    OG000
    arm label
    Placebo
    regimen
    Participants received apalutamide matched placebo tablets orally on a continuous once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    401
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0005#groups/OG000
  12. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    outcome key
    om-0005
    arm key
    OG001
    arm label
    Apalutamide
    regimen
    Participants received apalutamide orally at a starting dose of 240 milligram (mg) (8 x 30 mg capsules then 4 x 60 mg tablets) in a continuous treatment cycles (each treatment cycle is of 28 days) once daily dosing regimen along with androgen deprivation therapy (ADT) until disease progression, withdrawal of consent or unacceptable toxicity or death.
    analyzed count
    806
    analyzed unit
    Participants
    is comparator
    Source null
    source pointer
    NCT01946204-om-0005#groups/OG001
harms
  1. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    harm key
    EG000
    source section id
    NCT01946204-ae
    event group key
    EG000
    event group label
    Placebo
    serious affected
    92
    serious at risk
    398
    other affected
    329
    other at risk
    398
    frequency threshold
    5
    collection period
    Up to approximately 43 months
    event definition
    Safety population included all participants who received at least one dose of study drug.
    undenominated note
    Source null
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
  2. release id
    clinical-indications-draft-1
    disease state id
    ds-malignant-prostate-neoplasm
    nct id
    NCT01946204
    harm key
    EG001
    source section id
    NCT01946204-ae
    event group key
    EG001
    event group label
    Apalutamide
    serious affected
    199
    serious at risk
    803
    other affected
    716
    other at risk
    803
    frequency threshold
    5
    collection period
    Up to approximately 43 months
    event definition
    Safety population included all participants who received at least one dose of study drug.
    undenominated note
    Source null
    curation status
    draft
    reviewed by
    Source null
    reviewed at
    Source null
    created at
    2026-09-10T00:00:00Z
quality of life
    setting source links

      Preserved source evidence · Not medical advice