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Phase II Study of AZD2281 in Patients With Known BRCA Mutation Status or Recurrent High Grade Ovarian Cancer or Patients With Known BRCA Mutation Status/ Triple Neg Breast Cancer

Phase II, Open Label, Non-Randomized Study of AZD2281 in the Treatment of Patients With Known BRCA or Recurrent High Grade Serous/ Undifferentiated Tubo-Ovarian Carcinoma and in Known BRCA or Triple Negative Breast Cancer to Determine Response Rate and Correlative Markers of Response

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00679783
Enrollment
99
Registered
2008-05-19
Start date
2008-07-08
Completion date
2022-07-20
Last updated
2023-07-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ovarian Carcinoma, Breast Cancer

Keywords

Breast cancer, Ovarian cancer, BRCA, Triple negative, Poly(ADP ribose) polymerases, Known BRCA or Recurrent High Grade Serious/ Undifferentiated Tubo- Ovarian Carcinoma, Known BRCA or Triple Negative Breast Cancer

Brief summary

This is a Phase II, open label, non randomized correlative study of AZD2281 in patients with recurrent breast and ovarian cancer in both BRCA inherited mutation carriers and non-carriers to identify objective response rate and to assess for early markers of activity and to assess correlative markers that may provide helpful information for subsequent clinical trials. Approximately 110 patients from 7 centers in Canada will be enrolled into this study

Interventions

PARP inhibitor Olaparib tablets, oral

Sponsors

British Columbia Cancer Agency
CollaboratorOTHER
AstraZeneca
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

4 parallel arms for the 2 tumour types and the BRCA mutation groups: 1. Triple negative breast Cancer with unknown BRCA mutation status: AZD2281 400 mg bid (capsules)/ 300 mg bid (tablets) administered orally 2. Known BRCA mutation positive breast cancer: AZD2281 400 mg bid (capsules)/ 300 mg bid (tablets) to be administered orally 3. High grade serous/undifferentiated tubo-ovarian carcinoma with unknown BRCA status: AZD2281 400 mg bid (capsules)/ 300 mg bid (tablets) administered orally 4. Known BRCA mutation positive ovarian cancer: AZD2281 400 mg bid (capsules)/ 300 mg bid (tablets) administered orally.

Eligibility

Sex/Gender
ALL
Age
18 Years to 130 Years
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed high grade serous and/or undifferentiated carcinoma of ovary, fallopian tube or peritoneum * Oestrogen, progesterone and HER2 negative advanced adenocarcinoma of the breast * Known BRCA positive breast cancer or ovarian cancer, that is not high grade serous or undifferentiated tubo-ovarian carcinoma. * Performance status of no more than 2.

Exclusion criteria

* Any chemotherapy, radiotherapy ( except palliative), endocrine or immunotherapy within 4 weeks prior to entry * Major surgery with 4 weeks of entering the study and must have recovered from effects of any major surgery .

Design outcomes

Primary

MeasureTime frameDescription
Objective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) GuidelinesEach patient with measurable disease at baseline was assessed for Objective Response from the sequence of RECIST scan data up to data cut-off, 26 March 2010. RECIST scans were performed every 8 weeks (+/- 2 weeks) from randomization.Percentage of participants with confirmed best RECIST response of complete response (CR) or partial response (PR). Patients with a best RECIST response of CR or PR had to have a confirmed response at least 28 days later.

Secondary

MeasureTime frameDescription
Disease Control Rate (DCR)16 WeeksPercentage of participants with confirmed best Response Evaluation Criteria In Solid Tumours (RECIST) response of complete response (CR), partial response (PR) orStable Disease (SD)
Duration of ResponseRECIST tumour assessments carried out every 8 weeks from randomization (+/- 2 weeks) until data cut-off on 26 March 2010.Duration of response is measured from the time the measurement criteria for CR or PR are met (whichever is first recorded) until the patient progresses (per RECIST criteria). If patient did not progress, they are censored at their last objective tumour assessment date.
Best Percentage Change From Baseline in Tumour SizeEach patient with measurable disease at baseline was assessed for best percentage change in tumour size from the sequence of RECIST scan data up to data cut-off, 26 March 2010. RECIST scans were performed every 8 weeks (+/- 2 weeks) from randomization.The best percentage change (reduction) from baseline in tumour size (defined as the sum of the longest diameters as measured among all target lesions).
CA-125 Levels (Ovarian Cancer Patients Only)24 weeksA response according to CA-125 has occurred if there is at least a 50% reduction in CA-125 levels from a pre-treatment sample.
Progression Free Survival (PFS)RECIST tumour assessments carried out every 8 weeks from randomization (+/- 2 weeks) until data cut-off on 26 March 2010.PFS is defined as the time from first dose to the earlier date of radiologic progression (as per Response Evaluation Criteria In Solid Tumours (RECIST) criteria or death by any cause in the absence of objective progression.

Countries

Canada

Participant flow

Recruitment details

The first patient was enrolled on July 8, 2008 and efficacy and safety data were collected up to the data cut-off of March 26, 2010. Patients were enrolled at 6 centres in Canada. Of the 112 patients who gave informed consent 21 patients failed eligibility criteria or withdrew their consent and were not allocated to treatment.

Pre-assignment details

The study enrolled both known BRCA mutation carriers and patients with unknown BRCA status. Those with unknown status at entry had to provide a DNA sample for BRCA. One participant in arm 4 discontinued before receiving study drug and is excluded from the safety analysis set mutation analysis. Study data are summarised by confirmed mutation status.

Participants by arm

ArmCount
BRCA Positive Non-serous Ovarian
Patients with non-serous ovarian cancer who have a harmful mutation in the breast cancer genes BRCA1 or BRCA2. (Serous tumors are the most common subtype of ovarian cancer; other subtypes are grouped together as non-serous in this study).
4
BRCA Positive Serous Ovarian
Patients with serous ovarian cancer who have a harmful mutation in the breast cancer genes BRCA1 or BRCA2. (Serous tumors are the most common subtype of ovarian cancer).
13
BRCA Negative Non-serous Ovarian
Patients with non-serous ovarian cancer who do not have a harmful mutation in the breast cancer genes BRCA1 or BRCA2
3
BRCA Negative Serous Ovarian
Patients with serous ovarian cancer who do not have a harmful mutation in the breast cancer genes BRCA1 or BRCA2
44
BRCA Positive Non-triple Negative Breast
Patients with non-Triple negative breast cancer (non-TNBC) who have a harmful mutation in the breast cancer genes BRCA1 or BRCA2. Non-TNBC are cancers that have receptors for oestrogen, progesterone or Her2
5
BRCA Positive Triple Negative Breast
Patients with Triple negative breast cancer (TNBC) who have a harmful mutation in the breast cancer genes BRCA1 or BRCA2. TNBC are cancers that don't have receptors for oestrogen, progesterone or Her2 (Some commonly used breast cancer treatments don't work for TNBC)
5
BRCA Negative Triple Negative Breast
Patients with Triple negative breast cancer (TNBC) who do not have a harmful mutation in the breast cancer genes BRCA1 or BRCA2.
16
Total90

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006
Overall StudyAdverse Event0003001
Overall StudyLack of Efficacy0102000
Overall StudyNot Captured0005000
Overall StudyOngoing at data cut-off2209100
Overall StudyWithdrawal by Subject0011000

Baseline characteristics

CharacteristicBRCA Positive Non-serous OvarianBRCA Positive Serous OvarianBRCA Negative Non-serous OvarianBRCA Negative Serous OvarianBRCA Positive Non-triple Negative BreastBRCA Positive Triple Negative BreastBRCA Negative Triple Negative BreastTotal
Age, Continuous60 Year
STANDARD_DEVIATION 18.7
53.7 Year
STANDARD_DEVIATION 7.3
60.3 Year
STANDARD_DEVIATION 12.9
61 Year
STANDARD_DEVIATION 9.5
49.4 Year
STANDARD_DEVIATION 20.5
44.8 Year
STANDARD_DEVIATION 15.5
48.8 Year
STANDARD_DEVIATION 5.5
52.9 Year
STANDARD_DEVIATION 13
Sex: Female, Male
Female
4 Participants13 Participants3 Participants44 Participants5 Participants5 Participants16 Participants90 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
4 / 413 / 133 / 344 / 445 / 55 / 515 / 16
serious
Total, serious adverse events
0 / 44 / 130 / 36 / 440 / 52 / 52 / 16

Outcome results

Primary

Objective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines

Percentage of participants with confirmed best RECIST response of complete response (CR) or partial response (PR). Patients with a best RECIST response of CR or PR had to have a confirmed response at least 28 days later.

Time frame: Each patient with measurable disease at baseline was assessed for Objective Response from the sequence of RECIST scan data up to data cut-off, 26 March 2010. RECIST scans were performed every 8 weeks (+/- 2 weeks) from randomization.

ArmMeasureValue (NUMBER)
BRCA Positive Non-serous OvarianObjective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines75 Percentage of participants
BRCA Positive Serous OvarianObjective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines30.77 Percentage of participants
BRCA Negative Non-serous OvarianObjective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines0 Percentage of participants
BRCA Negative Serous OvarianObjective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines25.58 Percentage of participants
BRCA Positive Non-triple Negative BreastObjective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines0 Percentage of participants
BRCA Positive Triple Negative BreastObjective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines0 Percentage of participants
BRCA Negative Triple Negative BreastObjective Response Rate (ORR) Evaluated According to Response Evaluation Criteria In Solid Tumors (RECIST) Guidelines0 Percentage of participants
Secondary

Best Percentage Change From Baseline in Tumour Size

The best percentage change (reduction) from baseline in tumour size (defined as the sum of the longest diameters as measured among all target lesions).

Time frame: Each patient with measurable disease at baseline was assessed for best percentage change in tumour size from the sequence of RECIST scan data up to data cut-off, 26 March 2010. RECIST scans were performed every 8 weeks (+/- 2 weeks) from randomization.

ArmMeasureValue (MEDIAN)
BRCA Positive Non-serous OvarianBest Percentage Change From Baseline in Tumour Size-44.5 Percentage
BRCA Positive Serous OvarianBest Percentage Change From Baseline in Tumour Size-21.6 Percentage
BRCA Negative Non-serous OvarianBest Percentage Change From Baseline in Tumour Size33.6 Percentage
BRCA Negative Serous OvarianBest Percentage Change From Baseline in Tumour Size-14.1 Percentage
BRCA Positive Non-triple Negative BreastBest Percentage Change From Baseline in Tumour Size-35.3 Percentage
BRCA Positive Triple Negative BreastBest Percentage Change From Baseline in Tumour Size-36.4 Percentage
BRCA Negative Triple Negative BreastBest Percentage Change From Baseline in Tumour Size21.3 Percentage
Secondary

CA-125 Levels (Ovarian Cancer Patients Only)

A response according to CA-125 has occurred if there is at least a 50% reduction in CA-125 levels from a pre-treatment sample.

Time frame: 24 weeks

ArmMeasureValue (NUMBER)
BRCA Positive Non-serous OvarianCA-125 Levels (Ovarian Cancer Patients Only)75 Percentage of participants
BRCA Positive Serous OvarianCA-125 Levels (Ovarian Cancer Patients Only)33.33 Percentage of participants
BRCA Negative Non-serous OvarianCA-125 Levels (Ovarian Cancer Patients Only)0 Percentage of participants
BRCA Negative Serous OvarianCA-125 Levels (Ovarian Cancer Patients Only)28.57 Percentage of participants
Secondary

Disease Control Rate (DCR)

Percentage of participants with confirmed best Response Evaluation Criteria In Solid Tumours (RECIST) response of complete response (CR), partial response (PR) orStable Disease (SD)

Time frame: 16 Weeks

ArmMeasureValue (NUMBER)
BRCA Positive Non-serous OvarianDisease Control Rate (DCR)75 Percentage of participants
BRCA Positive Serous OvarianDisease Control Rate (DCR)53.85 Percentage of participants
BRCA Negative Non-serous OvarianDisease Control Rate (DCR)0 Percentage of participants
BRCA Negative Serous OvarianDisease Control Rate (DCR)47.73 Percentage of participants
BRCA Positive Non-triple Negative BreastDisease Control Rate (DCR)60 Percentage of participants
BRCA Positive Triple Negative BreastDisease Control Rate (DCR)20 Percentage of participants
BRCA Negative Triple Negative BreastDisease Control Rate (DCR)0 Percentage of participants
Secondary

Duration of Response

Duration of response is measured from the time the measurement criteria for CR or PR are met (whichever is first recorded) until the patient progresses (per RECIST criteria). If patient did not progress, they are censored at their last objective tumour assessment date.

Time frame: RECIST tumour assessments carried out every 8 weeks from randomization (+/- 2 weeks) until data cut-off on 26 March 2010.

ArmMeasureValue (MEDIAN)
BRCA Positive Non-serous OvarianDuration of Response277 Days
BRCA Positive Serous OvarianDuration of Response113 Days
BRCA Negative Serous OvarianDuration of Response384 Days
Secondary

Progression Free Survival (PFS)

PFS is defined as the time from first dose to the earlier date of radiologic progression (as per Response Evaluation Criteria In Solid Tumours (RECIST) criteria or death by any cause in the absence of objective progression.

Time frame: RECIST tumour assessments carried out every 8 weeks from randomization (+/- 2 weeks) until data cut-off on 26 March 2010.

ArmMeasureValue (MEDIAN)
BRCA Positive Non-serous OvarianProgression Free Survival (PFS)346.5 Days
BRCA Positive Serous OvarianProgression Free Survival (PFS)219 Days
BRCA Negative Non-serous OvarianProgression Free Survival (PFS)79.5 Days
BRCA Negative Serous OvarianProgression Free Survival (PFS)192 Days
BRCA Positive Non-triple Negative BreastProgression Free Survival (PFS)165 Days
BRCA Positive Triple Negative BreastProgression Free Survival (PFS)106 Days
BRCA Negative Triple Negative BreastProgression Free Survival (PFS)54 Days

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026