Ph II Study to Evaluate Olaparib With Abiraterone in Treating Metastatic Castration Resistant Prostate Cancer.

Sponsor
AstraZeneca (Industry)
Overall Status
Active, not recruiting
CT.gov ID
NCT01972217
Collaborator
Merck Sharp & Dohme LLC (Industry)
158
41
2
105
3.9
0

Study Details

Study Description

Brief Summary

This is a 2-part study in patients with metastatic CRPC. Part A is an open-label safety run-in study to assess the safety, tolerability and pharmacokinetics (PK) of olaparib when given in addition to abiraterone 1000 mg once daily. Part B is a randomised, double-blind, placebo controlled comparison of the efficacy, safety and tolerability of the dose of olaparib selected from Part A when given in addition to abiraterone, versus placebo given in addition to abiraterone. Abiraterone is indicated in combination with prednisone or prednisolone for the treatment of patients with metastatic CRPC. Prednisone or prednisolone 5 mg twice daily (bid) will be administered with the abiraterone in this study.

Condition or Disease Intervention/Treatment Phase
Phase 2

Detailed Description

This is a 2-part study in patients with metastatic CRPC. Part A is an open-label safety run-in study to assess the safety, tolerability and PK of olaparib when given in addition to abiraterone 1000 mg once daily. Part B is a randomised, double-blind, placebo-controlled comparison of the efficacy, safety and tolerability of the dose of olaparib selected from Part A when given in addition to abiraterone, versus placebo in addition to abiraterone.

Abiraterone is indicated in combination with prednisone or prednisolone for the treatment of patients with metastatic CRPC. Prednisone or prednisolone 5 mg bid will be administered with the abiraterone in this study, but throughout this protocol the treatment will be referred to simply as abiraterone.

For Part A of the study, 15 to 18 evaluable patients (Cohorts 1 and 2) are planned to be enrolled from approximately 4 sites in approximately 1 or 2 countries, and a further 12 patients may be recruited into a 3rd cohort if necessary.

For Part B of the study, approximately 140 patients who have received prior chemotherapy containing docetaxel will be randomised from approximately 40 sites in North America and Europe. Patients who have been dosed in Part A of the study may not participate in Part B.

Study Design

Study Type:
Interventional
Actual Enrollment :
158 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Treatment
Official Title:
A Randomised, Double-Blind, Placebo-Controlled, Multicentre Phase II Study to Compare the Efficacy, Safety and Tolerability of Olaparib Versus Placebo When Given in Addition to Abiraterone Treatment in Patients With Metastatic Castrate-Resistant Prostate Cancer Who Have Received Prior Chemotherapy Containing Docetaxel
Actual Study Start Date :
Apr 1, 2014
Actual Primary Completion Date :
Sep 22, 2017
Anticipated Study Completion Date :
Dec 30, 2022

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: Olaparib

200 mg or 300 mg bid

Drug: Olaparib
Olaparib bid
Other Names:
  • PARP inhibition
  • Drug: Abiraterone
    Abiraterone 1000 mg

    Drug: Prednisone or prednisolone
    Prednisone or prednisolone 5 mg bid will be co-administered with the abiraterone in this study.

    Placebo Comparator: Placebo

    placebo to match olaparib bid

    Drug: Placebo
    Placebo bid
    Other Names:
  • Placebo to PARP inhibition
  • Drug: Abiraterone
    Abiraterone 1000 mg

    Drug: Prednisone or prednisolone
    Prednisone or prednisolone 5 mg bid will be co-administered with the abiraterone in this study.

    Outcome Measures

    Primary Outcome Measures

    1. Part A: Percentage of Patients Experiencing Adverse Events (AEs) [Cohort 1 and 2: From baseline in Part A (Day 1 for each cohort) up to 30 days following last dose of study treatment.]

      The safety and tolerability of olaparib in combination with abiraterone was assessed during Part A of the study. The percentage of patients experiencing AEs, including information on seriousness, severity, study treatment relationship and those leading to discontinuation for all doses of olaparib and for abiraterone are presented. Severity of AEs was assessed using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse events (CTCAE) v4.0. AEs were assigned to a Grade from 1 through 5 as follows: Grade 1: Mild; Grade 2: Moderate; Grade 3: Severe or medically significant but not immediately life-threatening requiring hospitalisation; Grade 4: Life-threatening consequences; Grade 5: Death related to AE. 'c-r' = causally related 'discont' = discontinuation.

    2. Part A: Number of Patients With Dose Limiting Toxicities (DLTs) [From Day 1 for Cohort 1 and from Day 4 for Cohort 2 up to 14 days treatment with olaparib + abiraterone for 3 patients.]

      DLTs were assessed by a Safety Review Committee (SRC) after a minimum of 3 patients had received at least 14 days of treatment in Part A. A DLT was defined as any toxicity which was not a recognised AE of abiraterone or prednisolone, and was not attributable to the disease or disease-related processes under investigation, which occurred during a minimum period of 14 days treatment and which included: 1. haematological toxicity CTCAE v4.0 Grade 4 or higher present for more than 4 days (except anaemia); 2. non-haematological toxicity CTCAE v4.0 Grade 3 or higher including infection, corrected QT interval prolongation; 3. any other toxicity that was greater than that at baseline, was clinically significant and/or unacceptable, did not respond to supportive care, resulted in a disruption of dosing schedule of 7 days or more, or was judged to be a DLT by the SRC. A DLT excluded alopecia and isolated laboratory changes of any grade without clinical sequelae or clinical significance.

    3. Part B: Median Radiological Progression-Free Survival (rPFS) Time [From baseline, every 12 weeks up to Week 72, then every 24 weeks up to 24 months.]

      The efficacy of olaparib when given in combination with abiraterone was assessed by rPFS, defined as the time from randomisation to disease progression using Response Evaluation Criteria in Solid Tumours (RECIST) version 1.1 (for soft tissue disease) and Prostate Cancer Working Group 2 (PCWG-2) (for bone disease) criteria, or death. Progression using RECIST 1.1 criteria was defined as at least 20% increase from baseline in the sum of diameters of target lesions, progression of existing non-target lesions, or the appearance of at least 1 new lesion. Progression using PCWG-2 criteria was determined if 2 or more new metastatic bone lesions were observed (with a total of at least 4 new lesions since baseline assessment if observed at the 12 week scan, or persistence of or increase in number of lesions if observed after the 12 week scan as determined by a confirmatory scan at least 6 weeks later or at next scheduled visit).

    4. Part B: Percentage of Patients With Progression Events or Death (rPFS) [From baseline, every 12 weeks up to Week 72, then every 24 weeks up to 24 months.]

      The efficacy of olaparib when given in combination with abiraterone was assessed by rPFS, defined as the time from randomisation to disease progression using RECIST version 1.1 (for soft tissue disease) and PCWG-2 (for bone disease) criteria, or death. Progression using RECIST 1.1 criteria was defined as at least 20% increase from baseline in the sum of diameters of target lesions, progression of existing non-target lesions, or the appearance of at least 1 new lesion. Progression using PCWG-2 criteria was determined if 2 or more new metastatic bone lesions were observed (with a total of at least 4 new lesions since baseline assessment if observed at the 12 week scan, or persistence of or increase in number of lesions if observed after the 12 week scan as determined by a confirmatory scan at least 6 weeks later or at next scheduled visit). The percentage of patients with progression events is presented overall and according to RECIST 1.1 and/or PCWG-2 criteria, or death.

    Secondary Outcome Measures

    1. Part A Pharmacokinetics (PK): Olaparib Maximum Plasma Concentration at Steady State (Cmax,ss) [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib Cmax,ss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    2. Part A PK: Abiraterone Cmax,ss [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone Cmax,ss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    3. Part A PK Analysis: Olaparib Time to Reach Maximum Plasma Concentration at Steady State (Tmax,ss) [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib tmax,ss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    4. Part A PK: Abiraterone Tmax,ss [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone tmax,ss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    5. Part A PK Analysis: Olaparib Minimum Plasma Concentration at Steady State (Cmin,ss) [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib Cmin,ss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    6. Part A PK: Abiraterone Cmin,ss [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone Cmin,ss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    7. Part A PK Analysis: Olaparib Area Under the Plasma Concentration-Time Curve at Steady State (AUCss) [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib AUCss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    8. Part A PK: Abiraterone AUCss [PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.]

      Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone AUCss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.

    9. Part B: Percentage of Patients Experiencing AEs [From first dose of study treatment following randomisation in Part B up to 30 days following last dose of study treatment (up to approximately 3 years).]

      The safety and tolerability of olaparib when given in combination with abiraterone was assessed during Part B of the study. The percentage of patients experiencing AEs, including information on seriousness, severity, study treatment relationship and those leading to discontinuation for all doses of olaparib and for abiraterone are presented. Severity of AEs was assessed using the NCI Common Terminology CTCAE v4.0. AEs were assigned to a Grade from 1 through 5 as follows: Grade 1: Mild; Grade 2: Moderate; Grade 3: Severe or medically significant but not immediately life-threatening requiring hospitalisation; Grade 4: Life-threatening consequences; Grade 5: Death related to AE. 'c-r' = causally related. 'discont' = discontinuation. 'ola/pla' = olaparib/placebo.

    10. Part B: Median Best Percentage Change From Baseline in Prostate Specific Antigen (PSA) Levels [From baseline, then every 4 weeks up to Week 52, and then every 12 weeks.]

      The best percentage change from baseline in PSA levels was determined to assess the anti-tumour activity of olaparib when given in addition to abiraterone, compared with placebo given in addition to abiraterone. The best percentage change was defined as the biggest reduction in PSA level compared with baseline or smallest increase in the absence of a decrease.

    11. Part B: Percentage of Patients With PSA Responses [From baseline, then every 4 weeks up to Week 24, and then every 12 weeks.]

      The percentages of patients with single visit responses and with confirmed responses are presented to assess the anti-tumour activity of olaparib when given in addition to abiraterone, compared with placebo given in addition to abiraterone. A single visit response was defined as any post-dose visit PSA level reduced by 50% or more compared with baseline. A confirmed response was defined as a reduction in PSA level of 50% or more on 2 consecutive occasions at least 4 weeks apart compared with baseline. Patients may have had more than 1 single visit response or confirmed response but were counted once.

    12. Part B: Median Best Percentage Change From Baseline in Circulating Tumour Cell (CTC) Level [From baseline, then every 4 weeks up to Week 24, and then every 12 weeks.]

      The median best percentage change from baseline in CTC levels was determined to assess the anti-tumour activity of olaparib when given in combination with abiraterone, compared with placebo given in addition to abiraterone. The best percentage change was defined as the biggest CTC level reduction compared with baseline or smallest increase in the absence of a decrease.

    13. Part B: Percentage of Patients With at Least One Objective Response (Objective Response Rate [ORR]) [From baseline, then every 4 weeks up to Week 52, and then every 12 weeks.]

      The overall radiological ORR was calculated to assess the anti-tumour activity of olaparib in combination with abiraterone, compared with placebo in combination with abiraterone. The best overall ORR was defined as the percentage of patients with at least 1 visit response of complete response (CR) or partial response (PR) in soft tissue disease assessed by RECIST 1.1 and also bone scan status of non-progressive disease or non-evaluable for their bone scans assessed by PCWG-2. CR: Disappearance of all target lesions. Reduction of pathological lymph nodes to <10 millimetres. PR: At least a 30% decrease in the sum of diameters of target lesions from baseline. The percentage of patients with a response is presented.

    14. Median Time to First Subsequent Therapy (TFST) and Median Time to Second Subsequent Therapy (TSST) [From randomisation until analysis cut-off date (up to approximately 3 years).]

      The TFST and TSST were determined to assess the anti-tumour activity of olaparib when given in combination with abiraterone, compared with placebo given in addition to abiraterone. TFST was defined as the time from randomisation to the earlier of first subsequent anti-cancer therapy start date following study treatment discontinuation, or death. TSST was defined as the time from randomisation to the earlier of the second subsequent anti-cancer therapy start date following study treatment discontinuation, or death.

    15. Part B: Median Overall Survival (OS) [From baseline, every 12 weeks up to Week 72, then every 24 weeks up to 24 months.]

      OS was determined to assess the efficacy of olaparib when given in addition to abiraterone, compared with placebo given in addition to abiraterone. OS was performed at the time of the analysis of rPFS, and the median OS, calculated using the Kaplan-Meier technique, is presented.

    16. Part B: Median Time to Second Progression or Death (PFS2) [From randomisation until analysis cut-off date (up to approximately 3 years).]

      The efficacy of olaparib when given in combination with abiraterone was assessed by PFS2, defined by local standard clinical practice and included objective radiological progression by RECIST 1.1 (soft tissue), symptomatic progression, rise in PSA level or death in the absence of overall progression.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 130 Years
    Sexes Eligible for Study:
    Male
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    1. Provision of signed and dated written informed consent prior to any study specific procedures.

    2. Male aged 18 years and older.

    3. Histologically or cytologically proven diagnosis of prostate cancer.

    4. Candidate for abiraterone therapy with documented evidence of metastatic castration-resistant prostate cancer. Metastatic status is defined as at least one documented metastatic lesion on either bone scan or CT/MRI scan. Castration resistant prostate cancer is defined as rising PSA or other signs of disease progression despite treatment with androgen deprivation therapy and the presence of a castrate level of testosterone (≤50 ng/dL).

    5. Eastern Cooperative Oncology Group (ECOG) performance status 0 to 2 with no deterioration over the previous 2 weeks.

    6. Patients must have a life expectancy ≥12 weeks.

    7. Patients are willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations, and completing PRO instruments.

    8. Patients must be on a stable concomitant medication regimen, defined as no changes in medication or in dose within 2 weeks prior to start of olaparib dosing, except for bisphosphonates, denosumab and corticosteroids, which should be stable for at least 4 weeks prior to start of olaparib dosing.

    9. For the randomised phase only, patients must have received chemotherapy in the form of docetaxel treatment for metastatic castration-resistant prostate cancer. Note: patients who discontinued docetaxel for toxicity reasons and without completing the full course will still be eligible to enter this study provided they received at least 2 cycles of chemotherapy.

    Provide informed consent for the pharmacogenetic sampling and analyses.

    Exclusion Criteria:
    1. Involvement in the planning and/or conduct of the study (applies to both AstraZeneca staff, its agents and/or staff at the study site).

    2. Previous treatment in the present study.

    3. Treatment with any of the following:

    • Previous exposure to any 2nd generation anti-hormonal including abiraterone and enzalutamide

    • More than 2 prior courses of chemotherapy for metastatic prostate cancer

    • Previous use of immunotherapy or radium-223 for the treatment of metastatic prostate cancer

    • Any investigational agents or study drugs from a previous clinical study within 30 days of the first dose of study treatment;

    • Any previous exposure to a CYP17 (17α-hydroxylase/C17,20-lyase) inhibitor;

    • Substrates of CYP2D6 with a narrow therapeutic index (eg, thioridazine);

    • Potent inhibitors or inducers of CYP3A4 within 2 weeks before the first dose of study treatment (3 weeks for St John's Wort).

    • Any previous treatment with a PARP inhibitor, including olaparib.

    1. With the exception of alopecia or toxicities related to the use of gonadotropinreleasing hormone agonists, any unresolved toxicities from prior therapy greater than CTCAE Grade 2 at the time of starting study treatment.

    2. Spinal cord compression or brain metastases unless asymptomatic, treated and stable and not requiring steroids for at least 4 weeks prior to start of study treatment.

    3. As judged by the Investigator, any evidence of severe or uncontrolled systemic diseases, including uncontrolled hypertension, active bleeding diatheses, or active infection including hepatitis B, hepatitis C and human immunodeficiency virus (HIV). Screening for chronic conditions is not required.

    4. Any of the following cardiac criteria:

    • Mean resting QTc >470 msec obtained from 3 ECGs

    • Any clinically important abnormalities in rhythm, conduction or morphology of resting ECG eg, complete left bundle branch block, third degree heart block

    • Any factors that increase the risk of QTc prolongation or risk of arrhythmic events such as heart failure, hypokalaemia, congenital long QT syndrome, family history of long QT syndrome or unexplained sudden death under 40 years of age or any concomitant medication known to prolong the QT interval.

    1. Other malignancy within the last 5 years except: adequately treated non-melanoma skin cancer or other solid tumours including lymphomas (without bone marrow involvement) curatively treated with no evidence of disease for ≥5 years.

    2. Inadequate bone marrow reserve or organ function as demonstrated by any of the following laboratory values:

    • Absolute neutrophil count (ANC) <1.5 x 109/L

    • Platelet count <100 x 109/L

    • Haemoglobin (Hb) <100 g/L

    • Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) >2.5 x upper limit of normal (ULN) if no demonstrable liver metastases or >5 x ULN in the presence of liver metastases

    • Total bilirubin >1.5 x ULN if no liver metastases or >3 x ULN in the presence of liver metastases (except in the case of Gilbert's disease)

    • Creatinine >1.5 x ULN concurrent with creatinine clearance <50 mL/min (measured or calculated by Cockcroft and Gault equation); confirmation of creatinine clearance is only required when creatinine is >1.5 x ULN

    • If bone metastases are present and liver function is otherwise considered adequate by the Investigator then elevated alkaline phosphatase (ALP) will not exclude the patient.

    1. Refractory nausea and vomiting, chronic gastrointestinal diseases, inability to swallow the formulated product or previous significant bowel resection that would preclude adequate absorption of olaparib or abiraterone.

    2. History of hypersensitivity to active or inactive excipients of olaparib or abiraterone or drugs with a similar chemical structure or class to olaparib or abiraterone.

    3. Patients with myelodysplastic syndrome/acute myeloid leukaemia.

    4. Current disease or condition known to interfere with absorption, distribution, metabolism, or excretion of drugs, at the Investigator's discretion.

    5. Major surgery within 2 weeks of starting study treatment and patients must have recovered from any effects of any major surgery.

    6. Judgment by the Investigator that the patient should not participate in the study if the patient is unlikely to comply with study procedures, restrictions and requirements.

    Exclusion from the genetic research may be for any of the exclusion criteria specified in the main study or any of the following:

    1. Previous allogeneic bone marrow transplant.

    2. Non-leukocyte depleted whole blood transfusion within 120 days of the date of the pharmacogenetic sample collection.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Research Site San Diego California United States 92123
    2 Research Site Lake Success New York United States 11041
    3 Research Site Edegem Belgium 2650
    4 Research Site Liège Belgium 4000
    5 Research Site Wilrijk Belgium 2610
    6 Research Site London Ontario Canada N6A 4G5
    7 Research Site Greenfield Park Quebec Canada J4V 2H1
    8 Research Site Montreal Quebec Canada H2L 4M1
    9 Research Site Brno Czechia 656 53
    10 Research Site Brno Czechia 656 91
    11 Research Site Liberec Czechia 460 63
    12 Research Site Angers France 49933
    13 Research Site Dijon France 21079
    14 Research Site LYON cedex 08 France 69373
    15 Research Site Lecce Italy 73100
    16 Research Site Mirano Italy 30035
    17 Research Site Napoli Italy 80131
    18 Research Site Parma Italy 43100
    19 Research Site Pisa Italy 56126
    20 Research Site Arnhem Netherlands 6815 AD
    21 Research Site Maastricht Netherlands 6202 AZ
    22 Research Site Nijmegen Netherlands 6532 SZ
    23 Research Site Gdańsk Poland 80-214
    24 Research Site Warszawa Poland 02-781
    25 Research Site Ivanovo Russian Federation 153040
    26 Research Site Moscow Russian Federation 115478
    27 Research Site Moscow Russian Federation 125284
    28 Research Site St. Petersburg Russian Federation 197022
    29 Research Site Badalona Spain 08916
    30 Research Site Córdoba Spain 14004
    31 Research Site Gerona Spain 17007
    32 Research Site L'Hospitalet de Llobregat Spain 08908
    33 Research Site Madrid Spain 28050
    34 Research Site Palma de Mallorca Spain 7014
    35 Research Site Valencia Spain 46010
    36 Research Site Cardiff United Kingdom CF14 2TL
    37 Research Site Exeter United Kingdom EX2 5DW
    38 Research Site Manchester United Kingdom M20 4BX
    39 Research Site Plymouth United Kingdom PL6 8DH
    40 Research Site Torquay United Kingdom TQ2 7AA
    41 Research Site Westcliff-on-Sea United Kingdom SS0 0RY

    Sponsors and Collaborators

    • AstraZeneca
    • Merck Sharp & Dohme LLC

    Investigators

    None specified.

    Study Documents (Full-Text)

    More Information

    Additional Information:

    Publications

    Responsible Party:
    AstraZeneca
    ClinicalTrials.gov Identifier:
    NCT01972217
    Other Study ID Numbers:
    • D081DC00008
    • UVA97934
    First Posted:
    Oct 30, 2013
    Last Update Posted:
    Jul 14, 2022
    Last Verified:
    Jul 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Keywords provided by AstraZeneca
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details In this 2-part study, patients with metastatic castrate-resistant prostate cancer (mCRPC) were recruited at 41 sites in Europe, Russia and North America. Part A had 2 cohorts for olaparib dose selection when given with approved treatment abiraterone. Part B compared olaparib versus placebo both with abiraterone in post-chemotherapy mCRPC patients.
    Pre-assignment Detail Patients dosed in open-label Part A could not participate in Part B which was a randomised, double-blind, placebo-controlled comparison of olaparib + abiraterone versus placebo + abiraterone in patients who had received prior chemotherapy containing docetaxel.
    Arm/Group Title Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received olaparib 200 milligrams (mg) twice daily (bid) and abiraterone 1000 mg once daily. Patients were assessed at Weeks 1, 2 and 4, then every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. If the combination of olaparib 200 mg + abiraterone 1000 mg was well tolerated (determined after a minimum of 14 days treatment in Cohort 1), patients were recruited into Cohort 2. Cohort 2 Group 1: patients received olaparib 300 mg bid alone for 3 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days. Cohort 2 Group 2: patients received abiraterone 1000 mg once daily alone for 5 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Period Title: Part A: Open-label Safety Run-in Period
    STARTED 3 13 0 0
    COMPLETED 2 1 0 0
    NOT COMPLETED 1 12 0 0
    Period Title: Part A: Open-label Safety Run-in Period
    STARTED 0 0 71 71
    Received Olaparib/Placebo 0 0 71 71
    Received Abiraterone 0 0 71 71
    COMPLETED 0 0 25 24
    NOT COMPLETED 0 0 46 47

    Baseline Characteristics

    Arm/Group Title Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone Total
    Arm/Group Description Patients received olaparib 200 mg bid and abiraterone 1000 mg once daily. Patients were assessed at Weeks 1, 2 and 4, then every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. If the combination of olaparib 200 mg + abiraterone 1000 mg was well tolerated (determined after a minimum of 14 days treatment in Cohort 1), patients were recruited into Cohort 2. Cohort 2 Group 1: patients received olaparib 300 mg bid alone for 3 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days. Cohort 2 Group 2: patients received abiraterone 1000 mg once daily alone for 5 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Total of all reporting groups
    Overall Participants 3 13 71 71 158
    Age (Count of Participants)
    <=18 years
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    Between 18 and 65 years
    0
    0%
    3
    23.1%
    17
    23.9%
    22
    31%
    42
    26.6%
    >=65 years
    3
    100%
    10
    76.9%
    54
    76.1%
    49
    69%
    116
    73.4%
    Sex: Female, Male (Count of Participants)
    Female
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    Male
    3
    100%
    13
    100%
    71
    100%
    71
    100%
    158
    100%
    Ethnicity (NIH/OMB) (Count of Participants)
    Hispanic or Latino
    1
    33.3%
    0
    0%
    11
    15.5%
    5
    7%
    17
    10.8%
    Not Hispanic or Latino
    2
    66.7%
    13
    100%
    58
    81.7%
    63
    88.7%
    136
    86.1%
    Unknown or Not Reported
    0
    0%
    0
    0%
    2
    2.8%
    3
    4.2%
    5
    3.2%
    Race (NIH/OMB) (Count of Participants)
    American Indian or Alaska Native
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    Asian
    0
    0%
    0
    0%
    1
    1.4%
    0
    0%
    1
    0.6%
    Native Hawaiian or Other Pacific Islander
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    Black or African American
    0
    0%
    0
    0%
    1
    1.4%
    1
    1.4%
    2
    1.3%
    White
    3
    100%
    13
    100%
    67
    94.4%
    67
    94.4%
    150
    94.9%
    More than one race
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    Unknown or Not Reported
    0
    0%
    0
    0%
    2
    2.8%
    3
    4.2%
    5
    3.2%

    Outcome Measures

    1. Primary Outcome
    Title Part A: Percentage of Patients Experiencing Adverse Events (AEs)
    Description The safety and tolerability of olaparib in combination with abiraterone was assessed during Part A of the study. The percentage of patients experiencing AEs, including information on seriousness, severity, study treatment relationship and those leading to discontinuation for all doses of olaparib and for abiraterone are presented. Severity of AEs was assessed using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse events (CTCAE) v4.0. AEs were assigned to a Grade from 1 through 5 as follows: Grade 1: Mild; Grade 2: Moderate; Grade 3: Severe or medically significant but not immediately life-threatening requiring hospitalisation; Grade 4: Life-threatening consequences; Grade 5: Death related to AE. 'c-r' = causally related 'discont' = discontinuation.
    Time Frame Cohort 1 and 2: From baseline in Part A (Day 1 for each cohort) up to 30 days following last dose of study treatment.

    Outcome Measure Data

    Analysis Population Description
    The Part A Safety analysis set consisted of all patients who received at least 1 dose of study treatment in Part A. Treatment group comparisons were based on the initial dose of olaparib actually received.
    Arm/Group Title Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Arm/Group Description Patients received olaparib 200 mg bid and abiraterone 1000 mg once daily. Patients were assessed at Weeks 1, 2 and 4, then every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. If the combination of olaparib 200 mg + abiraterone 1000 mg was well tolerated (determined after a minimum of 14 days treatment in Cohort 1), patients were recruited into Cohort 2. Cohort 2 Group 1: patients received olaparib 300 mg bid alone for 3 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days. Cohort 2 Group 2: patients received abiraterone 1000 mg once daily alone for 5 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 3 13
    Any AE c-r to olaparib + abiraterone
    66.7
    46.2
    Any AE c-r to olaparib only
    33.3
    7.7
    Any AE c-r to abiraterone only
    0
    15.4
    Any AE CTCAE Grade 3 or higher
    66.7
    23.1
    Any AE CTCAE Grade 3 or higher c-r to olaparib
    0
    7.7
    Any AE CTCAE Grade 3 or higher c-r to abiraterone
    0
    7.7
    Any AE with outcome = death
    0
    0
    Any serious AE (SAE)
    66.7
    23.1
    Any SAE c-r to olaparib
    0
    0
    Any SAE c-r to abiraterone
    0
    0
    Any AE causing discont of olaparib
    0
    7.7
    Any AE causing discont of olaparib c-r to olaparib
    0
    0
    Any AE causing discont olaparib c-r to abiraterone
    0
    0
    2. Primary Outcome
    Title Part A: Number of Patients With Dose Limiting Toxicities (DLTs)
    Description DLTs were assessed by a Safety Review Committee (SRC) after a minimum of 3 patients had received at least 14 days of treatment in Part A. A DLT was defined as any toxicity which was not a recognised AE of abiraterone or prednisolone, and was not attributable to the disease or disease-related processes under investigation, which occurred during a minimum period of 14 days treatment and which included: 1. haematological toxicity CTCAE v4.0 Grade 4 or higher present for more than 4 days (except anaemia); 2. non-haematological toxicity CTCAE v4.0 Grade 3 or higher including infection, corrected QT interval prolongation; 3. any other toxicity that was greater than that at baseline, was clinically significant and/or unacceptable, did not respond to supportive care, resulted in a disruption of dosing schedule of 7 days or more, or was judged to be a DLT by the SRC. A DLT excluded alopecia and isolated laboratory changes of any grade without clinical sequelae or clinical significance.
    Time Frame From Day 1 for Cohort 1 and from Day 4 for Cohort 2 up to 14 days treatment with olaparib + abiraterone for 3 patients.

    Outcome Measure Data

    Analysis Population Description
    The Part A Safety analysis set consisted of all patients who received at least 1 dose of study treatment in Part A. Treatment group comparisons were based on the initial dose of olaparib actually received.
    Arm/Group Title Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Arm/Group Description Patients received olaparib 200 mg bid and abiraterone 1000 mg once daily. Patients were assessed at Weeks 1, 2 and 4, then every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. If the combination of olaparib 200 mg + abiraterone 1000 mg was well tolerated (determined after a minimum of 14 days treatment in Cohort 1), patients were recruited into Cohort 2. Cohort 2 Group 1: patients received olaparib 300 mg bid alone for 3 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days. Cohort 2 Group 2: patients received abiraterone 1000 mg once daily alone for 5 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 3 13
    Number [Patients]
    2
    4
    3. Primary Outcome
    Title Part B: Median Radiological Progression-Free Survival (rPFS) Time
    Description The efficacy of olaparib when given in combination with abiraterone was assessed by rPFS, defined as the time from randomisation to disease progression using Response Evaluation Criteria in Solid Tumours (RECIST) version 1.1 (for soft tissue disease) and Prostate Cancer Working Group 2 (PCWG-2) (for bone disease) criteria, or death. Progression using RECIST 1.1 criteria was defined as at least 20% increase from baseline in the sum of diameters of target lesions, progression of existing non-target lesions, or the appearance of at least 1 new lesion. Progression using PCWG-2 criteria was determined if 2 or more new metastatic bone lesions were observed (with a total of at least 4 new lesions since baseline assessment if observed at the 12 week scan, or persistence of or increase in number of lesions if observed after the 12 week scan as determined by a confirmatory scan at least 6 weeks later or at next scheduled visit).
    Time Frame From baseline, every 12 weeks up to Week 72, then every 24 weeks up to 24 months.

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Median (95% Confidence Interval) [Months]
    13.8
    8.2
    4. Primary Outcome
    Title Part B: Percentage of Patients With Progression Events or Death (rPFS)
    Description The efficacy of olaparib when given in combination with abiraterone was assessed by rPFS, defined as the time from randomisation to disease progression using RECIST version 1.1 (for soft tissue disease) and PCWG-2 (for bone disease) criteria, or death. Progression using RECIST 1.1 criteria was defined as at least 20% increase from baseline in the sum of diameters of target lesions, progression of existing non-target lesions, or the appearance of at least 1 new lesion. Progression using PCWG-2 criteria was determined if 2 or more new metastatic bone lesions were observed (with a total of at least 4 new lesions since baseline assessment if observed at the 12 week scan, or persistence of or increase in number of lesions if observed after the 12 week scan as determined by a confirmatory scan at least 6 weeks later or at next scheduled visit). The percentage of patients with progression events is presented overall and according to RECIST 1.1 and/or PCWG-2 criteria, or death.
    Time Frame From baseline, every 12 weeks up to Week 72, then every 24 weeks up to 24 months.

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Number [Percentage of patients]
    64.8
    76.1
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Part A Cohort 1: Olaparib 200 mg + Abiraterone, Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Comments The 1-sided p-value provides a test for rejecting the null hypothesis of no treatment effect versus the superiority alternative that patients on olaparib have a lower risk of progression compared with placebo.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.017
    Comments
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.651
    Confidence Interval (2-Sided) 95%
    0.438 to 0.969
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    5. Secondary Outcome
    Title Part A Pharmacokinetics (PK): Olaparib Maximum Plasma Concentration at Steady State (Cmax,ss)
    Description Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib Cmax,ss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Olaparib alone
    7.781
    (25.06)
    Olaparib + abiraterone
    6.504
    (20.90)
    7.724
    (28.05)
    6. Secondary Outcome
    Title Part A PK: Abiraterone Cmax,ss
    Description Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone Cmax,ss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Abiraterone alone
    145.8
    (135.5)
    Olaparib + abiraterone
    130.7
    (68.87)
    86.12
    (48.88)
    7. Secondary Outcome
    Title Part A PK Analysis: Olaparib Time to Reach Maximum Plasma Concentration at Steady State (Tmax,ss)
    Description Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib tmax,ss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Olaparib alone
    2.000
    Olaparib + abiraterone
    2.080
    2.000
    8. Secondary Outcome
    Title Part A PK: Abiraterone Tmax,ss
    Description Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone tmax,ss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Abiraterone alone
    2.525
    Olaparib + abiraterone
    3.000
    2.500
    9. Secondary Outcome
    Title Part A PK Analysis: Olaparib Minimum Plasma Concentration at Steady State (Cmin,ss)
    Description Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib Cmin,ss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Olaparib alone
    1.264
    (46.58)
    Olaparib + abiraterone
    0.9170
    (31.56)
    1.279
    (65.36)
    10. Secondary Outcome
    Title Part A PK: Abiraterone Cmin,ss
    Description Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone Cmin,ss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Abiraterone alone
    8.376
    (96.52)
    Olaparib + abiraterone
    7.983
    (163.3)
    6.358
    (50.96)
    11. Secondary Outcome
    Title Part A PK Analysis: Olaparib Area Under the Plasma Concentration-Time Curve at Steady State (AUCss)
    Description Following multiple dosing to steady state of olaparib 300 mg bid, the Cohort 2 olaparib AUCss is presented for olaparib monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Olaparib alone
    45.27
    (31.89)
    Olaparib + abiraterone
    40.83
    (11.47)
    49.51
    (37.30)
    12. Secondary Outcome
    Title Part A PK: Abiraterone AUCss
    Description Following multiple dosing to steady state of abiraterone 1000 mg once daily, the Cohort 2 abiraterone AUCss is presented for abiraterone monotherapy and for olaparib given in combination with abiraterone. Only patients with data available for analysis at each time point are presented.
    Time Frame PK sampling for Cohort 2 Group 1 was between Days 3 and 7 for olaparib, and Days 4 and 8 for olaparib and abiraterone. PK sampling for Cohort 2 Group 2 was between Days 5 and 7 for abiraterone, and Days 6 and 8 for olaparib and abiraterone.

    Outcome Measure Data

    Analysis Population Description
    The PK analysis set consisted of all patients who received at least 1 dose of olaparib per the protocol, for whom there was at least 1 reportable PK concentration and who had no important protocol deviations or AEs that impacted on PK on all PK sampling days. Only patients with data available for analysis at each time point are presented.
    Arm/Group Title Part A Cohort 2 Group 1: Olaparib, Olaparib + Abiraterone Part A Cohort 2 Group 2: Abiraterone, Olaparib + Abiraterone
    Arm/Group Description Patients received olaparib 300 mg bid alone for 3 to 7 days to determine the steady state PK profile for olaparib. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received abiraterone 1000 mg once daily alone for 5 to 7 days to determine the steady state PK profile for abiraterone. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days to determine the PK profiles of both olaparib and abiraterone. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 7 6
    Abiraterone alone
    825.5
    (105.5)
    Olaparib + abiraterone
    718.9
    (102.0)
    524.6
    (37.65)
    13. Secondary Outcome
    Title Part B: Percentage of Patients Experiencing AEs
    Description The safety and tolerability of olaparib when given in combination with abiraterone was assessed during Part B of the study. The percentage of patients experiencing AEs, including information on seriousness, severity, study treatment relationship and those leading to discontinuation for all doses of olaparib and for abiraterone are presented. Severity of AEs was assessed using the NCI Common Terminology CTCAE v4.0. AEs were assigned to a Grade from 1 through 5 as follows: Grade 1: Mild; Grade 2: Moderate; Grade 3: Severe or medically significant but not immediately life-threatening requiring hospitalisation; Grade 4: Life-threatening consequences; Grade 5: Death related to AE. 'c-r' = causally related. 'discont' = discontinuation. 'ola/pla' = olaparib/placebo.
    Time Frame From first dose of study treatment following randomisation in Part B up to 30 days following last dose of study treatment (up to approximately 3 years).

    Outcome Measure Data

    Analysis Population Description
    Part B safety analysis set consisted of all patients randomised into Part B of the study who received at least 1 dose of olaparib/placebo.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Any AE c-r to ola/pla + abiraterone
    45.1
    12.7
    Any AE c-r to ola/pla only
    18.3
    9.9
    Any AE c-r to abiraterone only
    1.4
    7.0
    Any AE CTCAE Grade 3 or higher
    53.5
    28.2
    Any AE CTCAE Grade 3 or higher c-r to ola/pla
    23.9
    5.6
    Any AE CTCAE Grade 3 or higher c-r to abiraterone
    16.9
    1.4
    Any AE with outcome = death
    5.6
    1.4
    Any AE with outcome = death c-r to ola/pla
    1.4
    0
    Any AE with outcome = death c-r to abiraterone
    0
    0
    Any SAE
    35.2
    19.7
    Any SAE c-r to ola/pla
    9.9
    1.4
    Any SAE c-r to abiraterone
    5.6
    0
    Any AE causing discont of ola/pla
    29.6
    9.9
    Any AE causing discont of treatment c-r to ola/pla
    16.9
    5.6
    Any AE causing discont treatment c-r abiraterone
    8.5
    1.4
    14. Secondary Outcome
    Title Part B: Median Best Percentage Change From Baseline in Prostate Specific Antigen (PSA) Levels
    Description The best percentage change from baseline in PSA levels was determined to assess the anti-tumour activity of olaparib when given in addition to abiraterone, compared with placebo given in addition to abiraterone. The best percentage change was defined as the biggest reduction in PSA level compared with baseline or smallest increase in the absence of a decrease.
    Time Frame From baseline, then every 4 weeks up to Week 52, and then every 12 weeks.

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received. Only patients with data available for analysis are presented.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Median (Full Range) [Percentage change in PSA level]
    -54.16
    -49.85
    15. Secondary Outcome
    Title Part B: Percentage of Patients With PSA Responses
    Description The percentages of patients with single visit responses and with confirmed responses are presented to assess the anti-tumour activity of olaparib when given in addition to abiraterone, compared with placebo given in addition to abiraterone. A single visit response was defined as any post-dose visit PSA level reduced by 50% or more compared with baseline. A confirmed response was defined as a reduction in PSA level of 50% or more on 2 consecutive occasions at least 4 weeks apart compared with baseline. Patients may have had more than 1 single visit response or confirmed response but were counted once.
    Time Frame From baseline, then every 4 weeks up to Week 24, and then every 12 weeks.

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Single visit response
    50.7
    47.9
    Confirmed response
    47.9
    42.3
    16. Secondary Outcome
    Title Part B: Median Best Percentage Change From Baseline in Circulating Tumour Cell (CTC) Level
    Description The median best percentage change from baseline in CTC levels was determined to assess the anti-tumour activity of olaparib when given in combination with abiraterone, compared with placebo given in addition to abiraterone. The best percentage change was defined as the biggest CTC level reduction compared with baseline or smallest increase in the absence of a decrease.
    Time Frame From baseline, then every 4 weeks up to Week 24, and then every 12 weeks.

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received. Only patients with data available for analysis are presented.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Median (Full Range) [Percentage change in CTC level]
    -1.0
    -1.0
    17. Secondary Outcome
    Title Part B: Percentage of Patients With at Least One Objective Response (Objective Response Rate [ORR])
    Description The overall radiological ORR was calculated to assess the anti-tumour activity of olaparib in combination with abiraterone, compared with placebo in combination with abiraterone. The best overall ORR was defined as the percentage of patients with at least 1 visit response of complete response (CR) or partial response (PR) in soft tissue disease assessed by RECIST 1.1 and also bone scan status of non-progressive disease or non-evaluable for their bone scans assessed by PCWG-2. CR: Disappearance of all target lesions. Reduction of pathological lymph nodes to <10 millimetres. PR: At least a 30% decrease in the sum of diameters of target lesions from baseline. The percentage of patients with a response is presented.
    Time Frame From baseline, then every 4 weeks up to Week 52, and then every 12 weeks.

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received. Only patients with data available for analysis are presented. Only patients with measurable disease at baseline are included.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Number [Percentage of patients]
    27.3
    31.6
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Part A Cohort 1: Olaparib 200 mg + Abiraterone, Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Comments
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value 0.309
    Comments The p value was calculated with a 1-sided significance level of 2.5%.
    Method Regression, Logistic
    Comments
    Method of Estimation Estimation Parameter Odds Ratio (OR)
    Estimated Value 0.813
    Confidence Interval (2-Sided) 95%
    0.285 to 2.261
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    18. Secondary Outcome
    Title Median Time to First Subsequent Therapy (TFST) and Median Time to Second Subsequent Therapy (TSST)
    Description The TFST and TSST were determined to assess the anti-tumour activity of olaparib when given in combination with abiraterone, compared with placebo given in addition to abiraterone. TFST was defined as the time from randomisation to the earlier of first subsequent anti-cancer therapy start date following study treatment discontinuation, or death. TSST was defined as the time from randomisation to the earlier of the second subsequent anti-cancer therapy start date following study treatment discontinuation, or death.
    Time Frame From randomisation until analysis cut-off date (up to approximately 3 years).

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    TFST
    13.5
    9.7
    TSST
    19.6
    18.0
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Part A Cohort 1: Olaparib 200 mg + Abiraterone, Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Comments Olapatib + abiraterone versus placebo + abiraterone: TFST
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value 0.095
    Comments The p value was calculated with a 1-sided significance level of 2.5%.
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.781
    Confidence Interval (2-Sided) 95%
    0.540 to 1.130
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection Part A Cohort 1: Olaparib 200 mg + Abiraterone, Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Comments Olaparib + abiraterone versus placebo + abiraterone: TSST
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value 0.147
    Comments The p value was calculated with a 1-sided significance level of 2.5%.
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.809
    Confidence Interval (2-Sided) 95%
    0.545 to 1.201
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    19. Secondary Outcome
    Title Part B: Median Overall Survival (OS)
    Description OS was determined to assess the efficacy of olaparib when given in addition to abiraterone, compared with placebo given in addition to abiraterone. OS was performed at the time of the analysis of rPFS, and the median OS, calculated using the Kaplan-Meier technique, is presented.
    Time Frame From baseline, every 12 weeks up to Week 72, then every 24 weeks up to 24 months.

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Median (95% Confidence Interval) [Months]
    22.7
    20.9
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Part A Cohort 1: Olaparib 200 mg + Abiraterone, Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Comments
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value 0.331
    Comments The p value was calculated with a 1-sided significance level of 2.5%.
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.911
    Confidence Interval (2-Sided) 95%
    0.600 to 1.384
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    20. Secondary Outcome
    Title Part B: Median Time to Second Progression or Death (PFS2)
    Description The efficacy of olaparib when given in combination with abiraterone was assessed by PFS2, defined by local standard clinical practice and included objective radiological progression by RECIST 1.1 (soft tissue), symptomatic progression, rise in PSA level or death in the absence of overall progression.
    Time Frame From randomisation until analysis cut-off date (up to approximately 3 years).

    Outcome Measure Data

    Analysis Population Description
    The Full analysis set consisted of all randomised patients in Part B, regardless of treatment actually received.
    Arm/Group Title Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    Measure Participants 71 71
    Median (95% Confidence Interval) [Months]
    23.3
    18.5
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Part A Cohort 1: Olaparib 200 mg + Abiraterone, Part A Cohort 2: Olaparib 300 mg + Abiraterone
    Comments
    Type of Statistical Test Other
    Comments
    Statistical Test of Hypothesis p-Value 0.140
    Comments The p value was calculated with a 1-sided significance level of 2.5%.
    Method Log Rank
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.788
    Confidence Interval (2-Sided) 95%
    0.511 to 1.215
    Parameter Dispersion Type:
    Value:
    Estimation Comments

    Adverse Events

    Time Frame Part A: From baseline (Day 1 for each cohort) up to 30 days following last dose of study treatment. Part B: From first dose of study treatment following randomisation up to 30 days following last dose of study treatment (up to approximately 3 years).
    Adverse Event Reporting Description The Part A Safety analysis set consisted of all patients who received at least 1 dose of study treatment in Part A. Part B safety analysis set consisted of all patients randomised into Part B of the study who received at least 1 dose of olaparib/placebo.
    Arm/Group Title Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Arm/Group Description Patients received olaparib 200 mg bid and abiraterone 1000 mg once daily. Patients were assessed at Weeks 1, 2 and 4, then every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. If the combination of olaparib 200 mg + abiraterone 1000 mg was well tolerated (determined after a minimum of 14 days treatment in Cohort 1), patients were recruited into Cohort 2. Cohort 2 Group 1: patients received olaparib 300 mg bid alone for 3 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 5 days. Cohort 2 Group 2: patients received abiraterone 1000 mg once daily alone for 5 to 7 days. Patients then received olaparib 300 mg bid and abiraterone 1000 mg once daily for at least 3 days. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received the selected dose of olaparib 300 mg bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment. Patients received placebo bid + abiraterone 1000 mg once daily. Patients were assessed every 4 weeks up to Week 52, and every 12 weeks thereafter. Patients also received prednisone or prednisolone 5 mg bid in combination with the abiraterone treatment.
    All Cause Mortality
    Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/3 (0%) 1/13 (7.7%) 43/71 (60.6%) 45/71 (63.4%)
    Serious Adverse Events
    Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 2/3 (66.7%) 3/13 (23.1%) 25/71 (35.2%) 14/71 (19.7%)
    Blood and lymphatic system disorders
    Anaemia 0/3 (0%) 0 0/13 (0%) 0 5/71 (7%) 7 1/71 (1.4%) 1
    Febrile neutropenia 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Cardiac disorders
    Acute myocardial infarction 0/3 (0%) 0 0/13 (0%) 0 2/71 (2.8%) 2 0/71 (0%) 0
    Cardiac failure 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Cardiac failure chronic 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Myocardial infarction 0/3 (0%) 0 0/13 (0%) 0 2/71 (2.8%) 2 0/71 (0%) 0
    Eye disorders
    Eye haemorrhage 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Gastrointestinal disorders
    Constipation 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Intestinal obstruction 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Nausea 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Proctitis 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Vomiting 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    General disorders
    General physical health deterioration 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Pyrexia 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Infections and infestations
    Bacteraemia 0/3 (0%) 0 0/13 (0%) 0 2/71 (2.8%) 2 0/71 (0%) 0
    Bacterial infection 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Candida infection 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Cellulitis 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Gastroenteritis 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Influenza 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Mediastinitis 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Pneumonia 1/3 (33.3%) 1 0/13 (0%) 0 4/71 (5.6%) 4 3/71 (4.2%) 3
    Pyelonephritis chronic 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Respiratory tract infection 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Sepsis 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Septic shock 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Urinary tract infection 1/3 (33.3%) 1 0/13 (0%) 0 2/71 (2.8%) 3 2/71 (2.8%) 2
    Injury, poisoning and procedural complications
    Humerus fracture 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Patella fracture 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Spinal fracture 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Subdural haematoma 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Urinary tract stoma complication 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Metabolism and nutrition disorders
    Dehydration 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Hypokalaemia 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Musculoskeletal and connective tissue disorders
    Back pain 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Squamous cell carcinoma of the tongue 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Nervous system disorders
    Cognitive disorder 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Ischaemic stroke 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Thrombotic stroke 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Renal and urinary disorders
    Renal failure 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Respiratory, thoracic and mediastinal disorders
    Dyspnoea 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Interstitial lung disease 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Pneumonitis 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Respiratory failure 0/3 (0%) 0 0/13 (0%) 0 2/71 (2.8%) 2 0/71 (0%) 0
    Vascular disorders
    Internal haemorrhage 0/3 (0%) 0 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Peripheral ischaemia 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Thrombosis 0/3 (0%) 0 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Other (Not Including Serious) Adverse Events
    Part A Cohort 1: Olaparib 200 mg + Abiraterone Part A Cohort 2: Olaparib 300 mg + Abiraterone Part B: Olaparib + Abiraterone Part B: Placebo + Abiraterone
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 3/3 (100%) 7/13 (53.8%) 63/71 (88.7%) 52/71 (73.2%)
    Blood and lymphatic system disorders
    Anaemia 0/3 (0%) 0 1/13 (7.7%) 1 18/71 (25.4%) 23 1/71 (1.4%) 1
    Lymphopenia 0/3 (0%) 0 1/13 (7.7%) 2 1/71 (1.4%) 1 0/71 (0%) 0
    Neutropenia 0/3 (0%) 0 1/13 (7.7%) 1 8/71 (11.3%) 8 0/71 (0%) 0
    Cardiac disorders
    Arrhythmia 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Ear and labyrinth disorders
    Cerumen impaction 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Tympanic membrane perforation 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Eye disorders
    Eyelid oedema 0/3 (0%) 0 0/13 (0%) 0 4/71 (5.6%) 5 0/71 (0%) 0
    Ocular hyperaemia 1/3 (33.3%) 1 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Gastrointestinal disorders
    Abdominal discomfort 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Abdominal pain 1/3 (33.3%) 1 0/13 (0%) 0 8/71 (11.3%) 9 1/71 (1.4%) 1
    Abdominal pain upper 1/3 (33.3%) 1 0/13 (0%) 0 1/71 (1.4%) 1 1/71 (1.4%) 1
    Constipation 1/3 (33.3%) 1 2/13 (15.4%) 2 17/71 (23.9%) 19 8/71 (11.3%) 10
    Diarrhoea 2/3 (66.7%) 4 3/13 (23.1%) 3 11/71 (15.5%) 17 8/71 (11.3%) 11
    Dyspepsia 1/3 (33.3%) 1 1/13 (7.7%) 1 0/71 (0%) 0 3/71 (4.2%) 3
    Dysphagia 0/3 (0%) 0 0/13 (0%) 0 5/71 (7%) 5 2/71 (2.8%) 2
    Frequent bowel movements 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Gastrooesophageal reflux disease 0/3 (0%) 0 0/13 (0%) 0 4/71 (5.6%) 4 0/71 (0%) 0
    Nausea 2/3 (66.7%) 5 2/13 (15.4%) 2 27/71 (38%) 42 15/71 (21.1%) 16
    Rectal haemorrhage 2/3 (66.7%) 2 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Vomiting 1/3 (33.3%) 4 2/13 (15.4%) 3 14/71 (19.7%) 26 9/71 (12.7%) 12
    General disorders
    Asthenia 0/3 (0%) 0 0/13 (0%) 0 16/71 (22.5%) 22 10/71 (14.1%) 11
    Fatigue 1/3 (33.3%) 1 1/13 (7.7%) 1 15/71 (21.1%) 16 9/71 (12.7%) 11
    Oedema peripheral 1/3 (33.3%) 1 0/13 (0%) 0 14/71 (19.7%) 16 8/71 (11.3%) 8
    Peripheral swelling 0/3 (0%) 0 2/13 (15.4%) 3 3/71 (4.2%) 3 1/71 (1.4%) 1
    Pyrexia 1/3 (33.3%) 1 0/13 (0%) 0 10/71 (14.1%) 11 1/71 (1.4%) 1
    Infections and infestations
    Arthritis infective 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Cellulitis 0/3 (0%) 0 1/13 (7.7%) 3 0/71 (0%) 0 0/71 (0%) 0
    Furuncle 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Gastroenteritis 0/3 (0%) 0 0/13 (0%) 0 4/71 (5.6%) 4 1/71 (1.4%) 1
    Lower respiratory tract infection 2/3 (66.7%) 2 0/13 (0%) 0 0/71 (0%) 0 3/71 (4.2%) 3
    Oral candidiasis 0/3 (0%) 0 1/13 (7.7%) 1 2/71 (2.8%) 2 1/71 (1.4%) 2
    Sepsis 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Sinusitis 1/3 (33.3%) 1 0/13 (0%) 0 1/71 (1.4%) 2 1/71 (1.4%) 1
    Urinary tract infection 0/3 (0%) 0 0/13 (0%) 0 8/71 (11.3%) 9 2/71 (2.8%) 2
    Viral upper respiratory tract infection 0/3 (0%) 0 0/13 (0%) 0 8/71 (11.3%) 10 3/71 (4.2%) 3
    Injury, poisoning and procedural complications
    Contusion 1/3 (33.3%) 1 0/13 (0%) 0 3/71 (4.2%) 3 2/71 (2.8%) 2
    Fall 2/3 (66.7%) 2 1/13 (7.7%) 1 5/71 (7%) 5 1/71 (1.4%) 2
    Humerus fracture 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Laceration 1/3 (33.3%) 2 1/13 (7.7%) 1 1/71 (1.4%) 1 0/71 (0%) 0
    Lower limb fracture 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Rib fracture 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 1/71 (1.4%) 1
    Thermal burn 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Wound secretion 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Investigations
    Alanine aminotransferase increased 1/3 (33.3%) 1 0/13 (0%) 0 1/71 (1.4%) 1 1/71 (1.4%) 1
    Aspartate aminotransferase increased 1/3 (33.3%) 1 0/13 (0%) 0 1/71 (1.4%) 1 1/71 (1.4%) 1
    Blood calcium decreased 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Blood creatinine increased 1/3 (33.3%) 3 1/13 (7.7%) 1 3/71 (4.2%) 3 1/71 (1.4%) 1
    Blood glucose increased 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Blood potassium decreased 1/3 (33.3%) 1 1/13 (7.7%) 2 2/71 (2.8%) 3 1/71 (1.4%) 2
    Blood urea increased 1/3 (33.3%) 3 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Body temperature increased 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 1/71 (1.4%) 1
    Electrocardiogram QT prolonged 0/3 (0%) 0 1/13 (7.7%) 2 0/71 (0%) 0 0/71 (0%) 0
    Haemoglobin decreased 0/3 (0%) 0 1/13 (7.7%) 2 0/71 (0%) 0 0/71 (0%) 0
    Heart rate irregular 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Urine output increased 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Weight decreased 0/3 (0%) 0 0/13 (0%) 0 4/71 (5.6%) 4 4/71 (5.6%) 4
    Metabolism and nutrition disorders
    Decreased appetite 1/3 (33.3%) 1 1/13 (7.7%) 1 12/71 (16.9%) 12 5/71 (7%) 5
    Fluid retention 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Hyperglycaemia 0/3 (0%) 0 1/13 (7.7%) 1 1/71 (1.4%) 1 1/71 (1.4%) 2
    Hypocalcaemia 1/3 (33.3%) 1 0/13 (0%) 0 1/71 (1.4%) 1 2/71 (2.8%) 2
    Hypokalaemia 1/3 (33.3%) 3 1/13 (7.7%) 3 5/71 (7%) 7 4/71 (5.6%) 6
    Musculoskeletal and connective tissue disorders
    Arthralgia 1/3 (33.3%) 1 1/13 (7.7%) 1 8/71 (11.3%) 8 4/71 (5.6%) 4
    Back pain 3/3 (100%) 5 1/13 (7.7%) 1 17/71 (23.9%) 21 14/71 (19.7%) 18
    Bone pain 0/3 (0%) 0 1/13 (7.7%) 1 11/71 (15.5%) 12 9/71 (12.7%) 9
    Groin pain 0/3 (0%) 0 1/13 (7.7%) 1 1/71 (1.4%) 1 0/71 (0%) 0
    Joint swelling 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 1/71 (1.4%) 1
    Muscle spasms 0/3 (0%) 0 1/13 (7.7%) 1 4/71 (5.6%) 4 2/71 (2.8%) 2
    Musculoskeletal chest pain 2/3 (66.7%) 4 0/13 (0%) 0 1/71 (1.4%) 1 5/71 (7%) 7
    Musculoskeletal pain 0/3 (0%) 0 0/13 (0%) 0 7/71 (9.9%) 8 6/71 (8.5%) 7
    Neck pain 0/3 (0%) 0 2/13 (15.4%) 2 2/71 (2.8%) 2 3/71 (4.2%) 3
    Osteopenia 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Osteoporosis 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Pain in extremity 1/3 (33.3%) 2 2/13 (15.4%) 3 5/71 (7%) 6 4/71 (5.6%) 4
    Spinal pain 0/3 (0%) 0 1/13 (7.7%) 1 2/71 (2.8%) 2 3/71 (4.2%) 3
    Nervous system disorders
    Dizziness 0/3 (0%) 0 1/13 (7.7%) 1 4/71 (5.6%) 5 2/71 (2.8%) 2
    Dysgeusia 0/3 (0%) 0 0/13 (0%) 0 4/71 (5.6%) 5 2/71 (2.8%) 2
    Headache 1/3 (33.3%) 1 0/13 (0%) 0 6/71 (8.5%) 9 5/71 (7%) 7
    Paraesthesia 0/3 (0%) 0 1/13 (7.7%) 1 1/71 (1.4%) 1 1/71 (1.4%) 1
    Tremor 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Psychiatric disorders
    Affect lability 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Depressed mood 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Depression 1/3 (33.3%) 1 0/13 (0%) 0 2/71 (2.8%) 2 1/71 (1.4%) 1
    Euphoric mood 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Insomnia 0/3 (0%) 0 0/13 (0%) 0 6/71 (8.5%) 7 2/71 (2.8%) 2
    Renal and urinary disorders
    Hypertonic bladder 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Pollakiuria 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 1/71 (1.4%) 1
    Urinary retention 0/3 (0%) 0 1/13 (7.7%) 1 2/71 (2.8%) 2 1/71 (1.4%) 1
    Respiratory, thoracic and mediastinal disorders
    Cough 0/3 (0%) 0 1/13 (7.7%) 2 11/71 (15.5%) 17 2/71 (2.8%) 2
    Dyspnoea 1/3 (33.3%) 2 1/13 (7.7%) 1 10/71 (14.1%) 12 4/71 (5.6%) 4
    Nasal congestion 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Pneumonitis 1/3 (33.3%) 1 0/13 (0%) 0 1/71 (1.4%) 1 0/71 (0%) 0
    Pulmonary embolism 1/3 (33.3%) 1 0/13 (0%) 0 2/71 (2.8%) 2 1/71 (1.4%) 1
    Skin and subcutaneous tissue disorders
    Blister 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Dry skin 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 1/71 (1.4%) 1
    Purpura 1/3 (33.3%) 1 0/13 (0%) 0 2/71 (2.8%) 2 0/71 (0%) 0
    Rash 1/3 (33.3%) 1 0/13 (0%) 0 1/71 (1.4%) 1 1/71 (1.4%) 1
    Skin atrophy 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 0/71 (0%) 0
    Skin lesion 1/3 (33.3%) 1 0/13 (0%) 0 0/71 (0%) 0 0/71 (0%) 0
    Skin ulcer 0/3 (0%) 0 1/13 (7.7%) 1 0/71 (0%) 0 1/71 (1.4%) 1
    Vascular disorders
    Haematoma 0/3 (0%) 0 0/13 (0%) 0 4/71 (5.6%) 5 0/71 (0%) 0
    Hot flush 1/3 (33.3%) 1 1/13 (7.7%) 1 3/71 (4.2%) 3 2/71 (2.8%) 2
    Hypertension 0/3 (0%) 0 0/13 (0%) 0 3/71 (4.2%) 3 4/71 (5.6%) 5

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Medical Director
    Organization AstraZeneca
    Phone +13028851180
    Email ClinicalTrialTransparency@astrazeneca.com
    Responsible Party:
    AstraZeneca
    ClinicalTrials.gov Identifier:
    NCT01972217
    Other Study ID Numbers:
    • D081DC00008
    • UVA97934
    First Posted:
    Oct 30, 2013
    Last Update Posted:
    Jul 14, 2022
    Last Verified:
    Jul 1, 2022