Study to Assess the Efficacy and Safety of a PARP Inhibitor for the Treatment of BRCA-positive Advanced Breast Cancer (ICEBERG 1)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00494234
Recruitment Status : Active, not recruiting
First Posted : June 29, 2007
Results First Posted : January 26, 2015
Last Update Posted : March 1, 2018
KuDOS Pharmaceuticals Limited
Information provided by (Responsible Party):

Study Type: Interventional
Study Design: Allocation: Non-Randomized;   Intervention Model: Parallel Assignment;   Masking: None (Open Label);   Primary Purpose: Treatment
Condition: Breast Neoplasms
Intervention: Drug: KU-0059436 (AZD2281) (PARP inhibitor)

  Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
The first patient was enrolled on June 15, 2007 and efficacy and safety data were collected up to the data cut-off of February 27, 2009. Patients were enrolled at 16 centres in 6 countries: Australia, Germany, Spain, Sweden, UK and the USA.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Two cohorts of up to 27 women with BRCA1- or BRCA2-associated breast cancer who had failed at least one prior chemotherapy and/or endocrine therapy in the advanced/metastatic setting, were assigned to receive olaparib 100 mg bd or 400 mg bd. Enrolment into the 2 cohorts was sequential with the 400 mg bd cohort being recruited first.

Reporting Groups
Olaparib 100 mg bd Full Analysis Set
Olaparib 400 mg bd Full Analysis Set

Participant Flow:   Overall Study
    Olaparib 100 mg bd   Olaparib 400 mg bd
STARTED   27   27 
COMPLETED   12   17 
NOT COMPLETED   15   10 
Lack of Efficacy                12                9 
Withdrawal by Subject                1                0 
Death                2                1 

  Baseline Characteristics

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
AZD2281 100 mg No text entered.
AZD2281 400 mg No text entered.
Total Total of all reporting groups

Baseline Measures
   AZD2281 100 mg   AZD2281 400 mg   Total 
Overall Participants Analyzed 
[Units: Participants]
 27   27   54 
[Units: Years]
Mean (Standard Deviation)
 44.7  (11.99)   44.7  (9.55)   44.7  (10.74) 
Age, Customized 
[Units: Participants]
<35 years   7   3   10 
>=35 - <50 years   11   18   29 
>=50 - <65 years   6   5   11 
>=65 years   3   1   4 
Sex: Female, Male 
[Units: Participants]
Count of Participants
Female      27 100.0%      27 100.0%      54 100.0% 
Male      0   0.0%      0   0.0%      0   0.0% 
Race/Ethnicity, Customized 
[Units: Participants]
Asian   1   1   2 
Black or african american   1   0   1 
White   25   26   51 

  Outcome Measures

1.  Primary:   Confirmed Objective Tumour Response (According to RECIST Criteria)   [ Time Frame: Baseline, every 8 also at study termination or initiation of confounding anti-cancer therapy. Up to 2 years. ]

2.  Secondary:   Duration of Response to Olaparib   [ Time Frame: Time from response (CR or PR) to progression per RECIST criteria ]

3.  Secondary:   The Clinical Benefit Rate (CBR)   [ Time Frame: End of study ]

4.  Secondary:   Best Percent Change in Tumour Size   [ Time Frame: End of study ]

5.  Secondary:   Progression-Free Survival (PFS)   [ Time Frame: End of study ]

6.  Secondary:   Change From Baseline in ECOG Performance Status: Improvement Rate   [ Time Frame: At cycle 7 day 1 (ie, after completing 6 cycles of treatment) ]

  Serious Adverse Events

  Other Adverse Events

  Limitations and Caveats

Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
No text entered.

  More Information

Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There is NOT 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: Clinical Trial Transparency
Organization: AstraZeneca

Publications automatically indexed to this study by Identifier (NCT Number):

Responsible Party: AstraZeneca Identifier: NCT00494234     History of Changes
Other Study ID Numbers: KU36-44
First Submitted: June 27, 2007
First Posted: June 29, 2007
Results First Submitted: January 16, 2015
Results First Posted: January 26, 2015
Last Update Posted: March 1, 2018