Exploratory Study to Assess the Short Term Intratumoural and Peripheral Effects of BN83495 in Postmenopausal Women With Newly Diagnosed Breast Cancer
A Phase II, Open-label, Exploratory Study to Assess the Short Term Intratumoural and Peripheral Effects of BN83495 Administered for 14 Days Prior to Surgery to Postmenopausal Women With Newly Diagnosed Primary Invasive Oestrogen Receptor Positive Breast Cancer
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
-
Lørenskog, Norway, 1474
- Akershus University Hospital
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Female subjects 55 to 80 years with histologically or cytologically documented primary intraductal or lobular invasive breast cancer that meets the following criteria:
- T2, N0 or N1, M0.
- Primary tumour clinically determined to be 2 to 5 cm in the greatest dimension.
- Laboratory documentation of positive oestrogen receptor (ER+) status in at least 10% of the tumour cells.
- Laboratory documentation of HER-2 negative status.
Postmenopausal defined as
- no spontaneous menses for a total of 2 years
- amenorrheic for at least 12 months with serum oestrogen level <30 pg/mL, and both luteinising hormone (LH)/follicle stimulating hormone (FSH) >20 IU/L, chemotherapy-induced amenorrhoea for at least 12 months
- bilateral oophorectomy, or radiation castration and amenorrhoeic for at least 3 months.
Eastern Cooperative Oncology Group (ECOG) performance status ≤2.
Exclusion Criteria:
- Has locally advanced breast cancer that is considered non-operable without neoadjuvant therapy.
- Has evidence of metastatic disease
- as a diagnosis of inflammatory breast cancer
- Has ductal carcinoma in situ
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: BN83495
40mg tablet oral daily administration from Day 1 to Day 14.
|
40mg tablet oral daily administration from Day 1 to Day 14.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Intratumoural levels of sex hormones
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
|
Intratumoural steroid sulphatase activity
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Change in the intratumoural Ki67 proliferation index
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
|
Proportion of subjects with a decrease in Ki67 staining ≥50%
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
|
Proportion of subjects with complete cell cycle response, defined as Ki67 staining ≤1%
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
|
Change in Apoptotic Index determined by M30 antibody
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
|
Change in Growth Index (Ki67 proliferation index/M30 apoptotic index)
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
|
Change in steroid sulphatase activity in peripheral blood mononuclear cells (PBMCs).
Time Frame: Baseline and Day 14
|
Baseline and Day 14
|
Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- X-55-58064-005
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